YKT2250 CNC SPIRAL BEVEL GEAR GENERATOR

This is a new type of CNC machine developed on the base of YT2250 Spiral Bevel Gear Generator.  It is used to cut the gears from the small one of 20-25 mm in diameter and 2.5 mm in module up to the large one of 500 mm in diameter and 10 mm in module.  The machine is designed for roughing and finishing Spiral Bevel Gears, Hypoid Gears, Angular Bevel Gears, Pinions which are meshed with non-generated gears and gears with long cone distance used in automobile, construction machinery, aviation and machine tool industries. It is most suitable for batch production as well as suitable for mass or jobbing production.

  Main Features and Structural Characteristics of machine

1.     The machine is designed to operate as a three-axes CNC control Spiral Bevel Gear Generator, i.e. cradle oscillation (X axis), work spindle rotation (Y axis) and sliding base movement (Z axis) being simultaneously controlled by control system for cutting the gears.  The rotation of cutter spindle is controlled by a frequency variable motor for its stepless control.

2.     There are no any change gears on the machine for easy operation, variety application and minimizing the setting time of machine.  The machine settings calculated for YT2250 or Y225 machine can be converted into the relative machine settings of YKT2250 machine.

3.     When setting the cutter by hand, the power of main motor will be off, so as to protect the operation.  Three axes (X, Y and Z) will be back to zero positions through switches for ensuring the high accuracy and there are forward and backward limit switches for Z axis.

4.     A high precision worm gear set is used for cradle drive and work spindle drive respectively, which are controlled by AC servo system for getting high machining accuracy.  The machine is with higher structural and driving rigidities.

5.     The machine is equipped with CNC control system 828D (SIEMENS), AC digital servo system and frequency variable regulator to accomplish the automatic or manual control and fault defect.

6.     The machine is equipped with an independent sealed electrical cabinet, which is with air conditioner or thermo exchanger.

7.     Safety guards and auto-chip conveyor can be provided on the machine.

 Specifications of Machine

 1. Dimensions of work to be cut
Max. modulemm10
Max. pitch cone distance (spiral angle 30°)mm260
Max. pitch diameter (spiral angle 30°, ratio 10:1)mm500
Root angle  Max.90°
  Min.
Max. ratio (shaft angle 90°)10:1
Max. spiral angle50°
Max. cutting depthmm20
Max. face widthmm70
Max. number of teeth5~100
 2. Work spindle
Diameter of taper hole at large endmm100
Taper1:20
Length of tapermm160
Diameter of through holemm78
Face diametermm170f9
 3. Cutter Diameter     6″  9″  12″
 4. Workhead settings
Max. offset of spindle
  Upward from center positionmm60
Downward from center position (When the distance from face of spindle to machine center being at) 

mm

 

<145   10

>145   50

Distance from face of spindle to machine centermm70~350
5. Cutter speed (stepless)rpm31~120
Power of main motorkw7.5
6. Cradle settings
Setting angle0°~360°
Setting angle of eccentric drum0°~125°
Radial setting of cutter spindlemm0~270
7. Sliding Base
Max. movement from machine center   Forwardmm25

163

   backward
8. Net weightkg6200
9. Overall dimensionsmm2900×2200×1825
10. Total power of motorskw25

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