Floating clamp

Abstract

The invention relates to a floating clamp. The floating clamp comprises a pressure box, wherein a plurality of jacking rods floating along an axial direction and used for jacking a specially-shaped part are assembled on at least one side surface except a reference surface, of the pressure box in a manner of guide sealing; one end of each jacking rod is located in the pressure box, and the other end of the jacking rod stretches out of the pressure box; working mediums used for pushing the jacking rods to axially float are arranged in the pressure box; and a space adjustment mechanism used for adjusting the size of a space where the working mediums are located is arranged on the pressure box. The space where the working mediums are located is reduced through the space adjustment mechanism, so that the working mediums push the jacking rods to axially float to jack the specially-shaped part; acting forces on the jacking rods are the same according to a hydraulic principle; the plurality of jacking rods form a plurality of equal-force fulcrums and the equal-force fulcrums act on different parts of the specially-shaped part, thus the acting forces acting on the specially-shaped part are effectively dispersed, the stress concentration of the specially-shaped part is reduced, and the deformation amount of the specially-shaped part is reduced.

Description

technical field [0001] The invention belongs to the field of clamps for mechanical processing, and in particular relates to a floating clamp. Background technique [0002] The fixture is an important auxiliary device in machining. It is used to fix the object to be processed so that it is in the correct processing position during the machining process, so as to ensure that it is accurately processed by the processing tool. [0003] At present, a large number of cast special-shaped parts are used in high-pressure products. Special-shaped parts refer to parts with irregular shapes. When processing special-shaped parts, general-purpose fixtures are usually used for clamping and clamping. The clamping force on the general-purpose fixture passes through the positioning fulcrum Or the positioning surface acts on the special-shaped parts. Due to the irregular shape of the special-shaped parts, the clamping force of the universal fixture can only act on a certain point or a certain ...

AI Technical Summary

Problems solved by technology

[0003] At present, a large number of cast special-shaped parts are used in high-pressure products. Special-shaped parts refer to parts with irregular shapes. When processing special-shaped parts, general-purpose fixtures are usually used for clamping and clamping. The clamping force on the general-purpose fixture passes through the positioning fulcrum Or the positioning surface acts on the special-shaped parts. Due to the irregular shape of the special-shaped parts, the clamping force of the universal fixture can only act on a certain point or a certain line on the special-shaped parts, and the force is very concentrated. Removing the clamp from the fixture will cause deformation, and even cause out-of-tolerance and waste products

In general, the current clamping force is concentrated when it is clamped, and the force cannot be distributed to different parts of the special-shaped parts. Fixtures for different parts

Images