Improvement of clamping structure of C620 lathe tailstock

We all know that the fastening of the old C620 lathe tailstock is done with two M20 bolts and a bottom platen, a screw clamping mechanism. When using the tailstock drill and hinge machining, after pushing the tailstock to a certain position, the two or one of the nuts must be tightened with a wrench to fix the tailstock. After the machining is completed, use the wrench to loosen the nut and pull the tailstock back to the original position. Where. Repeating the operation in this way is quite cumbersome and time consuming and laborious. To this end, I have improved the clamping structure of the C620 lathe tailstock as follows.