Anti-collision protection device

Abstract

The invention discloses an anti-collision protection device, which is characterized in that based on a use direction, a camshaft is provided with a spindle clamping cam; an axial V-shaped curve groove is arranged on the external surface of the raised section thereof along the radial direction; the V-shaped opening of the V-shaped curve groove is orientated to the left side; the external surface of the lower concave section thereof along the radial direction is a smooth arc side; the smooth arc side is connected to the V-shaped curve groove; a switching claw for clamping a workpiece is arranged on the spindle of machine tool; the external surface thereof is a top conical side having left diameter less than right diameter; a fastening regulating switch is hinged on the machine tool; one end of the fastening regulating switch is flexibly sleeved outside the switching claw while the other end can move along the V-shaped curve groove on the radial surface; a section of blocking bulge is fixed on the spindle at right side of the concave section of the spindle clamping cam; and the left side of the blocking bulge is blocked at the right side on the other end of the fastening regulating switch. The invention can prevent the other end of the fastening regulating switch from moving towards right side and can efficiently prevent colliding phenomenon.

Description

technical field [0001] The invention relates to a protection device, in particular to an anti-collision protection device. Background technique [0002] The camshaft of the machine tool drives a number of tool cams to rotate, and the tool cams control the tool feed movement through a number of connecting rods. A main shaft unclamping cam is fixed on the camshaft, and the outer surface of the main shaft unclamping cam radially protrudes. Axial V-shaped curved groove, the V-shaped opening of the V-shaped curved groove faces to the left, and the outer surface of the radial concave section is a smooth arc surface, which is connected with the V-shaped curved groove. The main shaft is provided with opening and closing claws for clamping the workpiece. The outer surface of the opening and closing claws forms a truncated conical surface with a diameter on the left side smaller than that on the right. A tightness adjustment switch is hinged on the bed of the machine tool, and one end...

AI Technical Summary

Problems solved by technology

When the other end of the tension adjustment switch is located on the smooth arc surface of the radial concave section of the spindle unclamping cam, since there is no stop on the right side of the smooth arc surface, the other end of the tension adjustment switch is affected by vibration and other work during the machine tool operation. There will be a movement tendency to slide to the right, causing the tool to suddenly open and close the claws to release the workpiece during the processing of the workpiece, resulting in a phenomenon of tool collision

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