Grinding mechanism for valve core and valve seat

Abstract

The invention provides a grinding mechanism for a valve core and a valve seat. The grinding mechanism comprises a first installation rack, a second installation rack and a driving structure; the first installation rack is provided with first installation space suitable for installing the valve seat and a first air hole communicating with the first installation space and the atmosphere; the second installation rack is provided with second installation space suitable for installing the valve core and a second air hole communicating with the second installation space and the atmosphere; the first installation rack and / or the second installation rack can move oppositely and / or towards the other one so that the first installation space and the second installation space can form closed space in a butt joint mode, the first installation space and the second installation space only can communicate through a hole to be ground of the valve seat when the valve seat is installed, and the valve core is inserted into the hole to be ground for being connected to the valve seat in a matched mode when the valve core is installed; the driving structure is used for driving the valve core or the valve seat to rotate relative to the other one so that the sealed contact surface of the valve core and the valve seat can be ground. According to the grinding mechanism, the valve core and the valve seat can be controlled to be automatically ground, the sealing performance between the valve core and the valve seat can be detected, and the production efficiency is high.

Description

technical field [0001] The invention relates to the technical field of grinding equipment, in particular to a valve core and valve seat grinding mechanism for grinding the sealing surfaces between valve core and valve seats. Background technique [0002] A regulating valve generally includes a valve core and a valve seat, and the valve core and the valve seat are tightly fitted. The regulating valve equipped with a spool and a valve seat can be installed on the pipeline to precisely control the parameters of the medium pressure, temperature and flow in the pipeline. Regulating valves in the prior art such as Figure 1 to Figure 3 As shown, it includes a valve core 01 and a valve seat 02, wherein the valve core 01 has a first sealing surface 011, and the valve seat 02 has a second sealing surface 022. When the valve core 01 is installed with the valve seat 02, the first sealing surface 011 It is in contact with the second sealing surface 022 to realize sealing. [0003] The...

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Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the technical defect that the grinding machine in the prior art can only control the automatic grinding of the valve core and valve seat, but cannot detect the sealing between the valve core and valve seat, so the production efficiency is low. Thereby providing a valve core and seat grinding mechanism that can control the automatic grinding of the valve core and seat, and can also detect the tightness between the valve core and valve seat, so that the production efficiency is high

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