R&D

R&D

R&D

Roll Thread Grinding Machine Development

Total production period
September 17th, 2022 ~ October 20th, 2023
Technical difficulties
  1. Pitch, Depth, Diagonal angle, Normal pitch, Transverse pitch, Thread contact angle, Dressing coordinate, Number of lines, lead, Wheel angle, Mathematical function formula between outer diameters.
  2. Mechanical conditions that satisfy the left-right, top-bottom parallelism between the index spindle center and tailstock center of 0.001mm or less.
Issue
  1. Obtain dressing coordinate input angle according to arbitrary wheel turning angle.
  2. Obtain SHIM values inserted into the housing height and side of the tailstock and perform precise material machining.
  3. A program that allows you to input touch point values on the line grinding the workpiece.
Development pictures
  • Development completion -1Development completion -1
  • Development completion -2Development completion -2
  • Material – BeforeMaterial – Before
  • Material - After Material - After
Specifications
Description Unit
Capacity Max Work Piece Length mm 150
Max Work Piece Diameter mm ∅30
Max Length mm 180
Travel Range X-axis mm 600
Y-axis mm 300
A-axis Rotation deg 360°
C-axis deg ±45° (수동)
Axis Drives Rapid Traverse X-axis m/min 5 (Linear Scale)
Rapid Traverse Y-axis m/min 5 (Linear Scale)
Rapid A-Rotation rpm 40
C-axis Rotation deg 360°(Rotary Encodear)
X-Linear Resolution mm 0.001
Y-Linear Resolution mm 0.001
A-Indexing Accuracy sec 20
A-Repeatability Accuracy sec 4
Wheel Spindle Grinding Wheel Diameter mm ∅300x∅105x20t
Grinding Spindle Speed rpm 3600
Power Required KW 3.7
Dressing Device Disk Wheel Diameter mm ∅100x∅50x16t
Disk Spindle Speed rpm 1800
Pack Power KW 1.5
Electrical Main Voltage - 220V / 60Hz
Consumption Power KVA 0.9
Machine Size Length x Width mm 2525x3460
Height mm 2000
Weight Kg 9000
Control Technology Controller - FANUC Oi-MF
Assembly
  • 조립도
Conditional table by models