VERTICAL-BROACHING MACHINE Russian patent published in 1994 - IPC

FIELD: machine tool manufacture. SUBSTANCE: machine has base 1, carrying plate 7 on which a bearing bush and additional bearing bushes 9 are fastened. Fixing bushes 17 are mounted on the bearing bush and additional bearing bushes 9. A guide bush and additional guide bushes 19 are fixed by pins 20 in fixing bushes 17 and have clamps 30 used for limiting cross displacement of key broaches 16. The positioning mechanism of broaches 16 is made in the form of three lead screws on each of which link 11 with a stop is fastened, the stop is used for fixing broach 16 in link 11. Nut-gear 14 (15) connected to a drive in the form of a motor is also mounted on each link 11. Chip receivers 13 are mounted on links 11. EFFECT: improved structure. 2 cl, 5 dwg