Clamp for machining drilling and milling joint surface of engine cylinder head

Abstract

The invention discloses a clamp for machining drilling and milling joint surface of an engine cylinder head. The clamp comprises a bottom plate, a pressing mechanism which is arranged on the bottom plate and is used for pressing the cylinder head, and a positioning mechanism which is arranged on the bottom plate and is used for positioning the cylinder head, wherein the positioning mechanism comprises a plurality of supporting blocks which are arranged on the bottom plate; and the cylinder head is placed on a positioning plane formed by the supporting blocks. Compared with the prior art, the clamp has the advantages that strip-shaped plates are replaced by the supporting blocks, so that the contact surface of the cylinder head during clamping is greatly reduced; and therefore, the problem of extremely high flatness of the traditional tool due to extremely large positioning surface is greatly solved, a firm foundation is laid for reducing unnecessary system errors in the process of machining the drilling and milling joint surface of the cylinder head, and the cylinder head is accurately clamped; and moreover, the clamp is simple in structure, convenient to operate and high in cylinder head machining efficiency, and a worker for machining the product can operate without training.

Description

Technical field [0001] The present invention relates to a clamping device, in particular, the present invention relates to a clamp used for machining the drilling and milling joint surface of an engine cylinder head. Background technique [0002] At present, in the machining process of automobile engine cylinder head, the machining of the cylinder head drilling and milling joint surface is a very important process in the cylinder head machining process. The machining accuracy will directly affect the product quality of the engine cylinder head, especially the tooling and fixture. The quality of the impact on the machining accuracy. Because the structure of the engine cylinder head is very complex, the machining process of the drilling and milling interface is very difficult, the main part of which is the tooling problem, the general assembly fixture on the machine tool is often used to realize the tooling clamping during the clamping. In the machine tool, the cylinder head is pl...

AI Technical Summary

Problems solved by technology

Using this clamping method requires the operator to have very skilled technology, and due to the complexity of the structure of the automobile engine cylinder head, it takes a lot of time for the operator to select and install the general combination fixture, which affects the processing efficiency of the cylinder head. It also caused unnecessary impact, and because the large reference plane of the long slab caused the problem that the plane of the positioning surface was too large, so that a large system deviation occurred, and the yield of the processed cylinder head decreased at this time

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