Fully Automatic Centerless Spherical (Flat) Stone Lapping Machine (single station machine)

for end face of taper roller, valve lifter, and so on

Standard application range : OD 2.5 - 50 mm x Length 2.5 - 55 mm
- taper roller : OD 9.5 - 32 mm x Length 15 - 56 mm x taper angle Max 8.5°
- Curvature : R 250 - (for spherical process)

STK-50FS-TZB

Application

1) Lifter valve

2) Taper roller

3) Cylindrical roller

4) Thrust

Main Features

  • Stone lapping machine capable of finishing end surfaces of cylindrical or tapered rollers after forging or grinding to a flat or spherical surface. The machined surface can also be finished with cross-hatch or concentric patterns.
  • Precisely adjustable swivel mechanism (0-10° angle) installed at the stone head portion enables creation of fully accurate spherical profiles.
    The tilting mechanism also enables precise adjustment of stone alignment.
  • Two-roller & one-shoe support system provides good parallelism and squareness against the mounting reference plane
  • An optional in-process gauging device allows for easy automatic dimension management
  • A cutting speed control servomechanism that controls the electropneumatic regulator for pressurizing the grindstone is employed, allowing you to assign pressure and speed settings at multiple steps for significant improvements in accuracy and efficiency

Work piece: Taper roller

Machine Specifications

1) Machining range
O.D.
2.5 - 50 mm
(taper roller)
( 9.5 - 32 mm)
Length
2.5 - 55 mm
(taper roller)
(15 - 56 mm)
R (Curvature) R 250 mm -
(Only for spherical surface machining)
2) Work piece support system
Two rolls One shoe, centerless support system
3) Machining method
Infeed type, Plunge cut
4) Upper/lower roller drive unit
Revolution 933 rpm (Max.)
Rough/Finish automatic multi-step change-over
Motor 3
Inverter control
5) Stone head unit part
Stone revolution 4,320 rpm (Max.)
Rough/Finish automatic multi-step change-over, timing belt control
Motor AC servomotor
Tilting unit For adjustment of stone vertical angle
Stone pressurization unit Electropneumatic regulator
Stone pressurization High pressure/low pressure automatic multi-step change-over
Stone forward pressure feeding unit Stopper system by servomotor control, stone pressure stroke 35 mm
Motor AC servomotor
6) Stone lapping unit
Oscillation frequency 1,500 fpm (Max.)
Rough/Finish automatic multi-step change-over
Motor 1.0 KW
AC servomotor
Swivel adjusting system Swivel adjusting angle clockwise rotation -0.5 - 10°
7) Upper roller open/close unit
Air cylinder drive
8) Backing head unit
9) Work pusher unit
Air cylinder drive
10) Air control unit
11) Machine size
(W)1,150×(D)1,665×(H)1,960 mm
12) Machine weight
1,500 Kg

Note : Specifications are subject to change without notice.

Other data