HJMTC SK7620B Internal thread grinding machine

Specifications

General descriptions:

Main movement of the machine includes: rotary movement of wheel spindle, rotary movement of work piece driven by servo motors, reciprocating movement of worktable, approach & withdrawal of wheel stock and movement for adjusting helix angle. A coupled movement from the rotary movement of working spindle and the movement of worktable realizes the thread movement; the machine features automatic grinding cycle, on-line automatic dressing grinding wheel, self-compensating dress quantity, etc.; optical grating scales are equipped on both the worktable and the wheel stock, an incremental rotary encoder is added to the working spindle in realization of entirely closed-hoop control; adjusting helix angle of wheel stock is controlled by servo motor, and the angle value is demonstrable on the operation interface

Main specifications

Max chuck diameter                    300mm

Max length of work piece                 200mm

Center height                                  200mm

Thread diameter ground                    25~200mm

Max thread length ground                 125mm

Pitch ground     metric            0.5~24mm

              Britain             3~40teeth/inch

Max helix angle ground               R 12°    L 12°

Number of starts ground            1~45(free)

Rotary speed of work piece         0.2~100rpm

Max rotary speed of wheel spindle   24000rpm

Grinding wheel size

    Max diameter                      100mm

    Min diameter                  20mm