High-pressure, high-rigidity and multi-station hydraulic clamp

Abstract

The invention discloses a high-pressure, high-rigidity and multi-station hydraulic clamp, and belongs to the technical field of hydraulic valve processing. A frame comprises an upper-layer plate, a middle-layer plate and a bottom-layer plate which are vertically opposite, A lower square box is fixed between the middle-layer plate and the bottom-layer plate, and the upper square box is fixed between the upper-layer plate and the bottom-layer plate; four uniformly distributed lower stations are arranged on the periphery of the lower square box; each lower station comprises an elastic round pin, an elastic rhombic pin, a first pressing head, a second pressing head, a side auxiliary support and a vertical auxiliary support; four upper stations which are uniformly distributed are arranged on the periphery of the upper square box; and each upper station comprises a second-order supporting block and a pressing plate, and a second-order round pin and a second-order rhombic pin are fixed to the second-order supporting block. The valve body is accurate in positioning, and the valve body can keep rigidity in the processing process; and a cross-shaped clamp structure is utilized, two large planes are processed at the same time, the problems of poor flatness and parallelism of a valve body processing matching face and poor valve element hole processing precision are solved, and the valve body processing efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of hydraulic valve processing, in particular to a high-pressure, high-rigidity, multi-station hydraulic clamp. Background technique [0002] The fixture is used to accurately locate the position of the workpiece in the metal cutting process, and firmly tighten it to accept processing equipment. Its main function is to reliably ensure the processing quality of the workpiece, improve processing efficiency, and reduce labor intensity. , give full play to and expand the technological performance of the machine tool. [0003] There are three types of existing fixtures: mechanical manual fixtures, pneumatic fixtures, and hydraulic fixtures. Mechanical manual fixtures: the design is relatively simple and economical, but the operation is complicated and the labor intensity is high. When the workpiece is subjected to heavy-duty cutting during processing, the workpiece is prone to vibration; Pneumatic fixtures: easy ...

AI Technical Summary

Problems solved by technology

[0006] 1. This hydraulic fixture can only process one valve body plane at a time, and the fixture structure is complex, which can only be applied to mass processing of one valve body blank. The fixture cylinder needs multiple sequential actions, and the action is relatively slow;

[0007] 2. The structure of the spring support mechanism at the bottom, when the valve body rises, because the surface of the valve body is a casting surface, its horizontal mechanism cannot ensure that the valve body remains in a relatively horizontal state, and the valve body is prone to tilt when it is clamped, thus affecting the valve body. machining accuracy

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