Universal fixture for sealing surface of valve body for vertical lathe and clamping method thereof

Abstract

The invention provides a universal fixture for a sealing surface of a valve body for a vertical lathe and a clamping method thereof. The universal fixture comprises a fixture body, wherein the included angle between the upper surface of the fixture body and the horizontal direction is 5 degrees, so that the consistency and accuracy of the angles of the processed sealing surfaces of the valve bodies of wedge gate valves or swing check valves are effectively ensured. The fixture body is of an axially symmetric structure, and such a structure can be used for overcoming the defects that fixtures in the prior art generally have poor universality for valve bodies of wedge gate valves or swing check valves which are different in size, specification and model, accurate symmetry of positions of two opposite valve body sealing surfaces is difficult to ensure, the consistency and accuracy of angles of the valve body sealing surfaces are difficult to ensure and the assembly and disassembly of the valve body of the wedge gate valve or the swing check valve is inconvenient.

Description

technical field [0001] The invention belongs to the technical field of fixtures, and in particular relates to a universal fixture for a valve body sealing surface used in a vertical machine tool and a clamping method thereof. Background technique [0002] At present, the sealing surface of the valve body of the wedge gate valve or the sealing surface of the swing check valve used in the vertical machine tool needs to be clamped by special or general fixtures for processing, but the fixtures used so far Generally, the valve bodies of wedge gate valves or swing check valves with different sizes and specifications have poor versatility, and it is difficult to ensure that the sealing surfaces of the two opposite valve bodies are precisely symmetrical and Ensure the consistency and accuracy of the angle of the sealing surface of the valve body of the processed wedge gate valve or the sealing surface of the swing check valve The disadvantage of inconvenient loading and unloading ...

AI Technical Summary

Problems solved by technology

This structure avoids the common problems of the fixtures in the prior art, which are poor in versatility for the valve bodies of wedge gate valves or swing check valves of various sizes and models, and it is difficult to ensure that the two valves facing each other The position of the sealing surface of the body is accurate and symmetrical, and it is difficult to guarantee the consistency and accuracy of the angle of the sealing surface of the valve body of the wedge gate valve or the sealing surface of the swing check valve. Disadvantages of difficulty in processing chip removal from the valve body and inconvenient loading and unloading of the valve body of the wedge gate valve or the valve body of the swing check valve

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