Combined clamp for machining holes in multiple faces through CNC and clamping method

Abstract

The invention provides a combined clamp for machining holes in multiple faces through CNC. The combined clamp comprises a clamp A and a clamp B. The clamp A is provided with a clamp bottom plate. A clamp main plate is arranged above the clamp bottom plate. Two fixing units are arranged on the upper surface of the clamp main plate. The fixing units specifically comprise small bosses, locating pins and M6 locking screws which are arranged on the upper surface of the clamp main plate. The clamp B is provided with a clamp main plate, and the right of the clamp main plate is sunken downwards to form a locating groove. An anti-reverse pin is arranged in front of the locating groove, and an anti-reverse pin is arranged on the rear portion of the locating groove. Pressing plates are arranged at the left end and the right end of the locating groove. The pressing plates are fixed to the clamp main plate through M12 fixing screws. The two clamps are adopted for forming the combined clamp, deformability of workpieces is controlled, the situation that due to the clamping mode, the hole-site size of parts is poor and the machining positions of the holes are wrong is avoided, the anti-reverse pins are additionally arranged on the clamp B, the situation that the machining positions of the holes are wrong is avoided, the holes in the two faces can be machined at a time without using two clamps, the production efficiency is improved, and the production time is shortened.

Description

technical field

[0001] The invention relates to the field of mechanical manufacturing, in particular to a combined fixture and a clamping method for machining multi-face holes by CNC. Background technique

[0002] The earlier fixture type is mainly composed of two movable jaws and fixed jaws, and the type is relatively simple. The defects of this type are: it is easy to cause the deformation of the workpiece hole during processing, it is not easy to locate, which affects the processing accuracy, and the shape positioning is easy to cause poor hole position and processing error of the hole position. Time is also easy to cause defective parts. Contents of the invention

[0003] The invention aims to provide a combined fixture and a clamping method for CNC machining multi-face holes that ensure the verticality, coaxiality and cylindricity of products.

[0004] In order to achieve the above-mentioned technical purpose, the present invention adopts the following technical sol...

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