Germany Benzinger 5-axis glass processing center 5@work

Product introduction

The 5 @work is a 5-axis machining center developed for the special requirements of the watch and jewelry industry.

Due to its design and spindle configuration, this 5-axis machining center offers a great deal of freedom and possibilities that are not possible with conventional milling centers. Whether rings, bracelets, jewelry or watch parts, any surface is diamond milled, engraved, twisted, faceted, etc., or in combination with our FourC, the stones are set up fully automatically.

 

Automatic workpiece loading and unloading device,

toolholder magazine for all sizes, turning operations and many other equipment details make the 5 @work a highly productive and flexible machining center for the watch and jewelry industry.

 

Using specially developed parametric CNC programs and a special user interface, these machines can be programmed and operated easily and intuitively. With our additional CAD cam package Benzinger Creative, various designs for milling and stone setting can be designed and manufactured directly in CAD. Using the CAM module, these designs can be directly converted into 5 @work 5-axis milling solutions.

 

Product Specifications Model:

Number of axes 5-axis

Horizontal / Vertical Vertical

Material to be processed For glass

Other Features Milling Cutter

X-axis 250 mm (10 in)

Y-axis 260 mm (10 in)

Z-axis 150 mm (6 in)

Speed 30,000 rpm (188,496 rad.min-1)

Output power 1 kW (1.36 hp)

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East China numerical control: CNC machine tools powerhouse products to break the monopoly of powerful countries

Listed on June 12, East China numerical control (002248), is the development, production and manufacture of CNC machine tools, CNC machine tools, key functional components (CNC systems, encoders, high-speed precision machine tool spindles, tool magazines, etc.) and general machine tools for the main business of high-tech enterprises, in the research and development and production of large-scale rail plate CNC molding grinder with the international leading level.
Products to break the monopoly of powerful countries
East China Numerical Control is currently one of the few domestic enterprises with both advanced design and production capacity of gantry grinding machines and gantry milling machines. With the help of this technical compound advantage, the company won the bidding in the project of Beijing-Shanghai high-speed railroad (Beijing-Tianjin Intercity Demonstration Section) of the Sixth Bureau of China Railway of the Ministry of Railway in February, 2006, and successfully contracted a BZM-650 Bo-format CNC grinder specializing in rail plate, which breaks the long-standing monopoly of Germany, the strongest country of the manufacturing sector, and ensures the smooth progress of the Beijing-Tianjin Intercity Railway Transportation Project. Smooth progress of the Beijing-Tianjin Intercity Rail Transportation Project.
Independent innovation for the East China numerical control to break the monopoly of powerful countries to provide a guarantee. Tang Shixian, chairman and general manager of the company, said that since its inception, East China CNC has always insisted on taking the road of development of independent innovation, high-tech scientific research and development as the enterprise can maintain rapid development of the foundation and the key to the hard, software and constantly increase the investment in the two aspects of the market competitiveness continues to increase. The company will account for more than 5% of the annual sales income of funds invested in technology development, through self-development, cooperative development, the introduction of digestion and other ways to have a number of patents and know-how, respectively, reached the international advanced or domestic leading level.
By 2006, East China Numerical Control has developed into a medium-sized enterprise in the domestic machine tool industry, entering a period of rapid growth. According to the China Machine Tool Industry Association statistics, in 2006 the company’s CNC gantry machine tool products accounted for about 7% of the domestic product market share; surface grinding machine products accounted for about 13% of the domestic product market share in the country ranked in the top five in the same industry; universal rocking-arm milling machine market share of about 19% in the country ranked first in the same industry in a dominant position.
Performance will grow rapidly
Tang Shixian said that the company through the IPO of the new “CNC gantry machine tool technology transformation project”, “CNC cylindrical grinding machine production project” and “CNC roll grinding machine production project”. The project is a high technology content, with independent intellectual property rights of the project, the fund-raising project after production, the company’s scale and strength will be on a new level, the company’s performance in the next few years will achieve rapid growth.
According to the project plan, after the completion of the project investment, East China CNC CNC gantry machine tools, CNC cylindrical grinding machine and CNC roll grinding machine production will be added 200 units / year, 120 units / year and 27 units / year. After the three projects reach production, the company’s sales revenue and total profits will have a greater growth. According to Haitong Securities forecast, the company’s 2008-2010 operating income is expected to increase from 398 million yuan in 2007 to 1.211 billion yuan in 2010, the three-year compound growth rate of net profit is expected to exceed 50%.
According to the plan, by 2010, East China CNC will enter the ranks of large machine tool manufacturers. Tang Shixian said that the domestic machine tool industry is a low degree of concentration of the industry, the company’s future will be specialized development as the leading direction, the formation of technology, brand and scale advantages in certain industry segments; and, the company will use the capital market platform to accelerate industry integration, not excluding the acquisition of mature production capacity at the right time.
Tang Shixian said that the future of the world’s machine tool manufacturing industry will gradually transfer to Asian countries, China’s machine tool industry will appear “to replace imports – exports – localization of functional components,” the evolution of the process! China’s machine tool industry will face great opportunities for development. East China CNC will seize the opportunity to achieve sustained and stable benign development.

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Taiwan Master Xinde CNC Universal Cylindrical Grinder Series

Taiwan Master Xinde CNC Universal Cylindrical Grinder PMG-60CNC/100CNC

 

(Product Characteristics

The SUG CNC series is designed for the combined OD/ID grinding of long shaft workpieces and is suitable for small to large quantities and even small quantities of various types of production. The GU CNC series grinding machines are capable of performing OD grinding, OD taper grinding, endface/shoulder grinding, and ID grinding in a single clamping setup, which can shorten the process time, reduce the production cost, and ensure the grinding accuracy. This series of grinding machines are suitable for OD/ID compound grinding operations in the manufacturing industries such as automobile and motorcycle parts, tooling machine parts, hydraulic/pneumatic/electronic motor parts, and so on. Equipped with high rigidity, low vibration and high cutting capacity dynamic spindle to ensure grinding accuracy. Reinforced ribbed box design of this machine is cast in Meehanna cast iron to ensure high rigidity and stability of the machine. Handmade high-precision spatula, Turcite-B abrasion-resistant patches and dynamic lubrication system ensure the quality and service life of the machine.

1、Grinding Wheel Head: Equipped with rotary axis B (any angle), including straight-feed grinding wheel, inclined-feed grinding wheel and internal grinding wheel.

2.Bore grinding spindle: Bore grinding motor adopts built-in spindle design, which can save space and balance the weight of bore grinding and external grinding wheels.

3、Ring Type Inductive Scale : X/B axis adopts Austria AMOSIN absolute inductive scale to ensure the positioning accuracy and repeatability of the grinding wheel head. The inductive scale is unlike the optical scale which is easily affected by dust.

4、X-axis moving method adopts linear slide mechanism, positioning method adopts absolute inductive ruler.

5、(Ⅳ)series main wheel table C-axis function, precise control of speed, with the ability to grind shaped workpieces, such as cams, crankshafts.

6、The center height of workpiece spindle is only 192mm, which makes workpiece replacement or grinding wheel replacement operation easier.

7、(Ⅲ)series X/Z/B three-axis computer numerical control, (Ⅳ) series X/Z/B/C four-axis computer numerical control, control the left and right feed point as well as grinding conditions such as grinding wheel feed rate.

8、(Ⅲ)series controller adopts FANUC Oi-TD with three-axis FANUC servo motor.

9、(Ⅳ)series controller adopts FANUC 31i, with four-axis FANUC servo motor.

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Italy SISMA jewelry laser processing machinery introduction

SISMA Italia is a worldwide reference in the design and production of ultra-high precision mechanical and laser systems.

Founded in 1961, SISMA has been able to build more than 130 models of machines for the automatic production of gold chains, thanks to its accumulated experience. Today, at the forefront of laser system development, SISMA has been able to extend its expertise to create production solutions for marking, welding, cutting, engraving and additive manufacturing. SISMA has made a career out of innovation, combining a modern and independent production organization with a large number of highly specialized human resources, thus guaranteeing the highest product quality and a timely response to market changes and requirements.

I. Series of laser marking and engraving machines for gold jewelry

Integratable resources, compact desktop systems, stand-alone systems with support bases and workstations.

SARTY, desktop laser marking and engraving system.

Versatile:

SARTY is a compact desktop laser marking and engraving system with rugged construction. It can be quickly adapted to handle different objects by simply changing the template.

Highly productive:

Load/unload options during processing, and the consequent elimination of downtime, make the SARTY ideal for marking multiple parts in a single batch.

Functionality:

SARTY is compatible with Coaxial Vision Systems (CVS) for automated part recognition and comes with powerful, flexible software that connects to company databases.

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High Precision CNC Gear Grinding Machine

Gear grinding machine is a kind of gear processing equipment widely used in machinery manufacturing industry, its main function is to grind gears made of various metal materials to improve its precision, surface quality and service life. This article will introduce the structure of the gear grinding machine, working principle, classification and application areas and other aspects of knowledge.

First, the structure and working principle of gear grinding machine
Gear grinding machine is usually composed of the following parts: host, table, grinding head, cooling system, control system and so on. Among them, the host is the main body of the gear grinding machine, responsible for supporting and fixing other parts; the worktable is used for placing and fixing the gears to be processed; the grinding head is an important part of the grinding machine, which is equipped with abrasive and coolant, used for grinding gears; the cooling system is responsible for providing coolant to reduce the temperature of the grinding process; the control system is used to control the operation of the entire gear grinding machine.

The working principle of the gear grinding machine is mainly based on the grinding principle. In the working process of the gear grinding machine, the abrasive inside the grinding head rubs against the surface of the gear to be processed, grinding down the metal on the surface of the gear, so that it gradually approaches the ideal shape. At the same time, the flushing effect of the coolant can take away the heat generated by grinding, reduce the temperature of the gear and prevent thermal damage.

Classification of Gear Grinding Machine
According to different classification standards, gear grinding machine can be divided into various types. According to the different principles of grinding, gear grinding machine can be divided into spread into the method of gear grinding machine and molding method of gear grinding machine. Spreading method grinding machine using a pair of gear meshing movement for grinding, its processing accuracy is higher, suitable for high-precision gear processing; Forming method grinding machine is based on the shape of the gear to be processed to make the corresponding grinding wheel for grinding, its processing efficiency is higher, but the accuracy is relatively low.

In addition, according to the number of grinding axes and the number of grinding wheels, gear grinding machine can be divided into single-axis, double-axis and multi-axis types. Single-axis gear grinding machine has only one grinding wheel axis, which is mainly used for roughing; double-axis gear grinding machine has two grinding wheel axes, which can be used for roughing and finishing; multi-axis gear grinding machine has more than one grinding wheel axis, which can be used for efficient multi-face grinding.
Imported gear grinding machine procurement consulting telephone: 13501282025

Third, the application field of gear grinding machine
Because the gear grinding machine has high precision and high efficiency, its application areas are very wide. In the field of automobile manufacturing, all kinds of gear parts need to be ground to improve precision and wear resistance; in the field of wind power, large-size gears need to be processed to ensure the stable operation of the wind turbine; in the field of shipbuilding, large gear parts need to be ground to improve its load-bearing capacity and stability.

In addition, in the field of mining machinery, aerospace, medical equipment and other fields, a variety of metal and non-metallic materials made of gear parts also need to be ground to improve their performance and service life. Therefore, with the development of the machinery manufacturing industry and the continuous progress of technology, the application prospects of gear grinding machine will be more broad.

In short, this paper provides a detailed introduction to the structure, working principle, classification and application areas of the gear grinding machine. It is of great significance to understand and master this knowledge to improve the productivity and product quality of the machinery manufacturing industry. In the future, with the continuous progress of technology and the expansion of application areas, gear grinding machine will be used and developed in more fields. Understand and study the history of Chinese and foreign translation from the macro and micro perspective, understand the differences and commonalities between Chinese and foreign translation theories and their mutual influences, and at the same time, conduct personalized research on the influential translators and translation theorists in the history of Chinese and foreign translation, search for the basic laws of the development of Chinese and foreign translation theories, so as to lay down the basic translation theoretical foundation for engaging in professional translation.

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Difficulties in 5-axis machining

The method and machine tool of five-axis machining, as early as the 60s of the 20th century, the foreign aviation industry has begun to adopt it in order to process some large pieces with continuous smooth and complex free-form surfaces, but it has not been widely used in more industries, and it has only developed rapidly in the past 10 years. The main reason is that there are many difficulties in five-axis machining, such as:

1. Programming is complex and difficult.

Because five-axis machining is different from three-axis, in addition to three linear movements, there are two rotational movements involved, and the spatial trajectory of the resulting motion is very complex and abstract, which is generally difficult to imagine and understand. For example, in order to process the required spatial free-form surface, it is often necessary to go through multiple coordinate transformations and complex spatial geometric operations, and at the same time, it is necessary to consider the coordination of the movement of each axis, avoid interference, collision, and interpolation motion should be timely and appropriate, etc., so as to ensure the required machining accuracy and surface quality, and the programming difficulty is even greater.

Second, the requirements for CNC and servo control systems are high.

Since five-axis machining requires five axes to coordinate movement at the same time, it is required that the CNC system must first have at least the function of five-axis linkage control; In addition, because there is the addition of rotary motion in the synthetic motion, this not only increases the workload of interpolation operation, but also because the small error of the rotary motion may be amplified and greatly affects the accuracy of machining, so the numerical control system is required to have a higher operation speed (i.e., the processing time of a shorter single program segment) and accuracy. All of this means that the CNC system must add a processor to the RISC chip for processing (i.e., a CPU structure with multiple high digits). In addition, as mentioned earlier, the mechanical configuration of the five-axis machining machine tool has a tool rotation mode, a workpiece rotation mode and a hybrid of the two, and the numerical control system must also be able to meet the requirements of different configurations. Finally, in order to achieve high-speed and high-precision five-axis machining, the CNC system should also have a look ahead function and a large buffer storage capacity, so that the motion data can be calculated and processed in advance before the program is executed, and multi-stage buffer storage can be carried out, so as to ensure that the error of the tool is still small when running at high speed. All these requirements will undoubtedly increase the complexity of the CNC system structure and the difficulty of development.

The mechanical structure design and manufacture of three-axis and five-axis machine tools are also more complex and difficult than those of three-axis machine tools.

Because the machine tool needs to add two axis of rotation coordinates, it is necessary to use a table that can tilt and rotate or a spindle head component that can rotate and oscillate. For the two additional components, it is required not only to have a compact structure, but also to have a large enough torque and the sensitivity and precision of the movement, which is obviously much more difficult than the design and manufacture of ordinary three-axis machining machine tools.

The development trend of five-axis machine tools

The first is the linear motor drive technology. After more than ten years of development, linear motor technology has been very mature. The problem of susceptibility to interference and large heat production has been solved, and the positioning technology of linear motor not only stops quickly in high-speed movement, but also some machine tool manufacturers use damping technology to solve it.

The advantages of linear motors are linear drive, no transmission chain, no wear, and no backlash, so they can achieve the best positioning accuracy. Linear motors have high dynamics and can accelerate more than 2 g. The linear motor drive also has the characteristics of high reliability and maintenance-free.

The second is the use of dual-drive technology. For the wider workbench or gantry type, if the intermediate drive is adopted, the driving force can not be guaranteed to be in the center, which is easy to cause tilting, so that the dynamic performance is poor. With dual drivers, dual encoders, and one driver module, the dynamic performance is perfect. One drive command, two drives work at the same time, the grating ruler to detect whether the two points are balanced, if not, through different commands to achieve balance. Of course, the development of five-axis linkage machine tool technology is far more than this, and many technologies will be reflected in DMG’s machine tool products.

Advantages of 5-axis linkage machines

The so-called five-axis machining here refers to the fact that there are at least five coordinate axes (three linear coordinates and two rotary coordinates) on a machine tool, and the simultaneous coordinated movement can be processed under the control of the computer numerical control (CNC) system. Compared with the general three-axis linkage CNC machining, such five-axis linkage CNC machining has the following advantages:

1. It can process continuous and smooth free-form surfaces that cannot be processed by general three-axis CNC machine tools or are difficult to be processed in one clamping. For example, the blades of aero engines and steam turbines, the screw thrusters used in ships, and many shells and molds with special curved surfaces and complex cavities and hole positions, such as ordinary three-axis CNC machine tools, because the attitude angle of the tool relative to the workpiece cannot be changed in the processing process, when machining some complex freeform surfaces, there may be interference or underprocessing (that is, it cannot be processed). When processing with a five-axis linkage machine tool, the attitude angle of the tool/workpiece can be adjusted at any time during the machining process, the interference of the tool workpiece can be avoided and all the processing can be completed in one clamping;

2.it can improve the machining accuracy, quality and efficiency of spatial freeform surfaces. For example, when the three-axis machine tool processes a complex curved surface, the ball nose milling cutter is mostly adopted, and the ball nose milling cutter is formed by point contact, and the cutting efficiency is low, and the attitude angle of the cutter/workpiece can not be adjusted in the machining process, and it is generally difficult to ensure that the best cutting point on the ball nose milling cutter (i.e., the highest point of the ball head line speed) is used to cut, and it is possible that the cutting point falls on the rotation center line that the ball nose cutter line speed is equal to zero, as shown at the tool position a shown in Figure 1. In this case, not only is the cutting efficiency extremely low, the quality of the machined surface deteriorates severely, but also manual repair is often required, so accuracy may be lost. If the five-axis machine tool is used, because the attitude angle of the tool/workpiece can be adjusted at any time, not only can this situation be avoided, but also the best cutting point of the tool can be fully used to cut at all times, or the spiral end mill of line contact forming can be used to replace the ball nose milling cutter of point contact forming, and even milling can be carried out by further optimizing the attitude angle of the tool/workpiece, so as to obtain higher cutting speed, cutting line width, that is, to obtain higher cutting efficiency and better machining surface quality, Figure 3 shows an example comparing the effects of milling the same freeform surface at a constant pose angle with an optimized pose angle. It is not difficult to see that the surface roughness of the blade milled by the constant attitude angle (Sturz method) is one level lower than that of the blade milled by the optimized attitude angle (P milling method – Starrag’s patent), and the time taken by the former is 30%~130% more than that of the latter;
Average Ra value for surface quality grades
N8 1.6-3.2μm
N7 0.8-1.6μm
N6 0.4-0.8μm
N5 0.2-0.4μm

3. In line with the development direction of machine tools that can complete all or most of the processing of the workpiece in one clamping. Because with the development of science and technology and the improvement of people’s material living standards, people’s requirements for product performance and quality are also higher, and the forms are more diversified and personalized. In order to further improve the performance and quality of products, fully meet the user’s requirements, such as energy saving, material saving, lightweight, beautiful, comfortable, etc., modern products, not only aviation, aerospace products and vehicles (such as cars, ships, ships, etc.), but also include precision instruments, meters, medical, sports equipment, as well as household, office appliances and children’s toys and other product parts, are more and more made of the overall material milling, and it also contains many kinds of complex surfaces and oblique holes, inclined planes, etc. These parts, such as those machined with conventional machine tools or three-axis CNC machines, must be completed with multiple machine tools and multiple positioning installations. In this way, not only the equipment investment is large, the production area is occupied, the production and processing cycle is long, and the accuracy and quality are difficult to guarantee. In order to solve these problems, it is necessary to develop machine tools that can concentrate on the process for high-precision, high-efficiency and composite processing, in order to achieve all or most of the processing of the workpiece in one clamping. This has become a major trend in the development of machine tools today, and five-axis machine tools equipped with high-speed machining capabilities are fully in line with this development and may be the best solution. Because it not only has the main functions required by modern production and processing equipment, but also the ergonomics of a five-axis machine tool is about equivalent to two three-axis machining machines, and even more machine tools can be dispensed with.

4. the advantages of mold processing.
In traditional mold processing, vertical machining centers are generally used to complete the milling of workpieces. With the continuous development of mold manufacturing technology, some weaknesses of the vertical machining center itself are becoming more and more obvious. Modern mold processing generally uses ball nose milling cutter to process, ball nose milling cutter brings benefits in mold processing is very obvious, but if you use vertical machining center, the linear speed of its bottom surface is zero, so that the finish of the bottom surface is very poor, if you use four-axis and five-axis linkage machine tool processing technology to process mold, you can overcome the above shortcomings.
The clamping of workpieces is made easy due to the use of a five-axis simultaneous machine (fig. 1). There is no need for special fixtures during processing, which reduces the cost of fixtures, avoids multiple clamping, and improves the machining accuracy of molds. The use of 5-axis technology to machine the mold can reduce the number of fixtures used. In addition, the five-axis simultaneous machine tool can eliminate many special tools in machining, so the tool cost is reduced. Five-axis linkage machine tools can increase the effective cutting edge length of the tool, reduce the cutting force (Fig. 2), improve the service life of the tool, and reduce the cost. The use of five-axis linkage machine tool processing mold can quickly complete mold processing, fast delivery, better ensure the processing quality of the mold, make the mold processing easier, and make the mold modification easy.

Process characteristics of drilling

Machining holes in the solid part of the workpiece with a drill bit is called drilling.Drilling is rough processing, the achievable dimensional tolerance level is IT13~IT11, and the surface roughness value is Ra50~12.5µm.Due to the long length of the twist drill, the small diameter of the core and the poor rigidity, as well as the influence of the horizontal edge, the drilling has the following process characteristics:

1.The drill bit is easy to skew.Due to the influence of the horizontal edge, the centering is not accurate, and the drill bit is easy to deflect when cutting; and the rigidity and guiding effect of the drill bit are poor, and the drill bit is easy to bend when cutting.When drilling on a drilling machine, as shown in Figure 7-2a, it is easy to cause the axis of the hole to shift and not straight, but the aperture does not change significantly; when drilling on a lathe, as shown in Figure 7-2b, it is easy to cause changes in the aperture, but the axis of the hole is still straight.Therefore, the end face should be processed before drilling, and a cone pit should be pre-drilled with a drill bit or a center drill, as shown in Figure 7-3, so that the drill bit can be centered.When drilling small and deep holes, in order to avoid the axis of the hole being offset and not straight, the workpiece rotation method should be used for drilling as much as possible.

2.The aperture is easy to expand.When drilling, the unequal radial force of the two cutting edges of the drill bit will cause the aperture to expand; the deviation of the cut-in when drilling in a horizontal lathe is also an important reason for the aperture to expand; in addition, the radial runout of the drill bit is also the cause of the aperture to expand.

3.The surface quality of the hole is poor.The drilling chips are wide and are forced to roll in a spiral shape in the hole. When they flow out, they rub against the hole wall and scratch the processed surface.

4.The axial force is large when drilling.This is mainly caused by the horizontal edge of the drill bit.Tests have shown that 50% of the axial force and 15% of the torque during drilling are generated by the horizontal blade.Therefore, when the drilling diameter d﹥30mm, drilling is generally carried out twice.Drill out (0.5~0.7) d for the first time, and drill to the required aperture for the second time.Since the horizontal edge does not participate in cutting for the second time, a larger feed can be used to improve the surface quality and productivity of the hole.

CNC machine tool maintenance regulations

Maintenance of CNC system
1. Strictly abide by operating procedures and daily maintenance systems
2. Prevent dust from entering the CNC device: Floating dust and metal powder can easily cause the insulation resistance between components to decrease, resulting in malfunction or even damage to the components.
3. Clean the cooling and ventilation system of the CNC cabinet regularly
4. Frequently monitor the grid voltage of the CNC system: the grid voltage ranges from 85% to 110% of the rated value.
5. Regularly replace the memory battery
6. Maintenance of the CNC system when it is not in use for a long time: frequently power on the CNC system or run the CNC machine tool through the warm-up program.
7. Maintenance of spare circuit boards and maintenance of mechanical components
Maintenance of mechanical components
1. Maintenance of tool magazine and tool changing robot
1) When manually loading a knife into the tool magazine, make sure it is installed in place and check whether the locking on the tool holder is reliable;
2) It is strictly prohibited to load overweight and overlong tools into the tool magazine to prevent the tool from falling or the tool from colliding with the workpiece, fixture, etc. when the manipulator changes the tool;
3) When using the sequential tool selection method, you must pay attention to whether the order of placing the tools on the tool magazine is correct. In other tool selection methods, you should also pay attention to whether the tool number you change is consistent with the required tool to prevent accidents caused by changing the wrong tool;
4) Pay attention to keeping the tool handle and knife sleeve clean;
5) Always check whether the zero return position of the tool magazine is correct, check whether the position of the machine tool spindle returning to the tool change point is in place, and adjust it in time, otherwise the tool change action cannot be completed;
6) When starting up, the tool magazine and manipulator should be run dry first, and check whether all parts are working normally, especially whether the travel switches and solenoid valves can operate normally.
2. Maintenance of ball screw pair
1) Regularly check and adjust the axial clearance of the screw nut pair to ensure reverse transmission accuracy and axial stiffness;
2) Regularly check whether the connection between the screw support and the machine bed is loose and whether the support bearing is damaged. If there are any of the above problems, tighten the loose parts in time and replace the support bearings;
3) For ball screws that use grease, clean the old grease on the screw once every six months and replace it with new grease. The ball screw lubricated with lubricating oil should be refueled once a day before machine tool operation;
4) Pay attention to avoid hard dust or chips from entering the screw guard and hitting the guard during work. If the protective device is damaged, it must be replaced in time.
3. Maintenance of main transmission chain
1) Regularly adjust the tightness of the spindle drive belt;
2) Prevent various impurities from entering the fuel tank. Change lubricating oil once a year;
3) Keep the connection between the spindle and the tool holder clean. The displacement of the hydraulic cylinder and piston needs to be adjusted in time;
4) Adjust the counterweight in time.
4. Hydraulic system maintenance
1) Filter or replace the oil regularly;
2) Control the temperature of the oil in the hydraulic system;
3) Prevent hydraulic system leakage;
4) Regularly check and clean the fuel tank and pipelines;
5) Implement daily point inspection system.
5. Pneumatic system maintenance
1) Remove impurities and moisture from compressed air;
2) Check the oil supply amount of the lubricator in the system;
3) Maintain the sealing of the system;
4) Pay attention to regulating work pressure;
5) Clean or replace pneumatic components and filter elements;

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