| 摘要 |
The invention relates to a pneumatic vice employed in automatically clamping and releasing long wood blanks to be delivered by cutting with a view to being subsequently machined by turning or milling, using various equipments. According to the invention, the vice exhibits an assembled structure consisting of a pneumatic cylinder (1), a piston (2), a rod (3) with a threaded end, which drives a cylindrical rack (5) into a linear motion, engaging with a toothed cylindrical pinion (6) coupled to a bevel pinion (7) which engages, in its turn, with a toothed crown (8) of the lathe chuck device, the said linkage, depending on the moving direction of the piston (2) which is controlled, in its turn, by an electronic programming unit (18) by means of an electropneumatic valve (19), accomplishing the clamping/releasing function by pressing or spacing apart some dies (10) onto or from a blank (11) to be machined. |
