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车床用自动定心三爪卡盘(苏联发明证书№1110554)适合于在16K20型车床上加工时使用。它由直径250mm的卡盘、气缸和气缸与卡盘的联接件组成。在原始位置时,气缸的活塞杆1处于左极限位置,此时,圆盘4的各凸部均处于花盘5的各凹槽内,而销子6和螺旋盘8则松开。在此位置上,旋转小锥齿轮即可使卡盘爪的位置比被夹紧坯件的直径大1—3mm。将坯件卡入卡盘爪内后,气缸便开始工作。螺杆2与螺母3和圆盘4一起向右移动,
Lathe with automatic centering three jaw chuck (USSR invention certificate № 1110554) suitable for processing on the 16K20 lathe used. It consists of a diameter of 250mm chuck, cylinder and cylinder and chuck coupling member. In the original position, the piston rod 1 of the cylinder is in the left limit position. At this time, the convex portions of the disk 4 are all in the grooves of the faceplate 5, and the pin 6 and the screw 8 are released. In this position, rotating the bevel pinion causes the chuck jaws to be positioned 1-3 mm greater than the diameter of the clamped blank. After the blank card claw claw, the cylinder began to work. The screw 2 moves to the right with the nut 3 and the disk 4,