Cam shaft keywaying milling jig

Abstract

The invention relates to a fixing jig, in particular to a cam shaft keywaying milling jig. The cam shaft keywaying milling jig comprises a base, two main clamp bodies arranged on two sides of the base and a supporting seat arranged in the middle of the base. Each main clamp body comprises a base body, a V-shaped block, a wedge, press plates and a rotary arm, wherein the base body is of a U-shaped frame structure, a vertical strip-shaped hole is formed in the lower portion of the wedge, the V-shaped block is fixed to the upper surface of the base body, the two press plates are symmetrically hinged to the base body, the lower end of the wedge is an inclined surface, the lower end of each press plate abuts against the inclined surface through bolts, the two press plates are opposite to form a clamping head used for clamping a cam shaft, the middle of the rotary arm is hinged to the U-shaped frame through a ratchet mechanism, one end of the rotary arm is hinged to the upper end of the wedge, and the other end of the rotary arm is provided with a handle and a press rod used for releasing the ratchet mechanism. The supporting seat comprises a telescopic seat and a supporting frame fixed to the telescopic seat. The cam shaft keywaying milling jig is ingenious and reasonable in structure and capable of providing enough clamping force rapidly.

Description

technical field [0001] The invention relates to a machining fixture for a cam, in particular to a clamping device for a rod used for fixing a camshaft on a milling machine. Background technique [0002] Jigs and fixture arrangements are well known and widely used in the manufacturing industry. Specifically, fixtures have a variety of datum surfaces and points that allow parts or tools to be positioned accurately. In many machining processes, it is common to apply fixtures so that these camshafts can maintain the correct positional relationship during processes such as stamping, riveting, welding, gluing or solidification. Fixtures are considered essential components in the machining industry and are an important component in calculating machining costs and demanding logistical considerations during production. The vast majority of positioning processes are accomplished using dedicated fixtures. [0003] In the machining of the keyway on the camshaft, because the milling m...

AI Technical Summary

Problems solved by technology

[0003] In the machining of the keyway on the camshaft, because the milling machine generally uses a large amount of cutting when machining, and it is multi-tooth intermittent cutting, the cutting force is large and is still changing at any time, which makes it easy to generate vibration during machining. The clamping force requirement is relatively high. Since the camshaft itself is an irregular camshaft, in order to increase the clamping force of the fixture on the camshaft, it is necessary to set multiple clamping points, which causes the trouble of replacing the camshaft.

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