LOAD DETECTOR OF WORKING TOOL REST IN METAL FORMING MACHINE

摘要

PURPOSE:To detect the load on a working tool rest which is generated during rolling with simple and inexpensive constitution by attaching load detectors to part of a guide rail for sliding and guiding the working tool rest in a metal forming machine. CONSTITUTION:The guide rail 11 is fitted into a rail groove 9 formed to a base part 1 and is fixed thereto. A roll stand 3 is slidably fitted to the guide rial 11 with the guide grooves 10 formed to the roll stand 3. Strain gages 12a, 12b which form strain inducing parts each having an I-shaped cross section and of which the strain inducing parts incline by 45 deg. in the transfer direction and intersect orthogonally with each other in the plane along the transfer direction of a work are attached to part of the rail 11. The shearing forces generated in the strain inducing parts are thus detected as electric signals by the gages 12a, 12b and the load generated in the roll stand 3 is detected.