Clamp for machining single check valve pin shaft hole

Abstract

The invention discloses a clamp for machining a single check valve pin shaft hole. The clamp for machining the single check valve pin shaft hole comprises an inverted-T-shaped plate with the verticalcross section is in an inverted T shape, a single check valve body positioning, supporting and clamping device installed on a vertical plate on the higher right side portion of the inverted-T-shaped plate and a single check valve pin shaft hole drilling positioning device installed on the top face of a vertical plate on the lower left side portion of the inverted-T-shaped plate. The purpose that the coaxial precision of a drill bushing vertically arranged on a drilling template and a guide sleeve vertically arranged on a guide block is not changed is achieved, the technical problem of interference between the single check valve body and the drilling template is solved, the technical problems of drilling falling of a lower shaft hole of the single check valve body to be machined and the location degree and coaxiality of upper and lower pin shaft holes of the single check valve body to be machined are solved, smooth production of machining of the single check valve pin shaft hole is conveniently achieved, the single check valve pin shaft hole machining yield is improved, and the machining yield reaches 100% through batch verification.

Description

technical field [0001] The invention belongs to a jig for processing the pin shaft hole of a check valve, in particular to a jig for processing the pin shaft hole of a single flap check valve. Background technique [0002] At present, the single disc wafer butterfly check valve has been widely used in the market. The shape, position and dimensional tolerance of the pin shaft hole of this type of single-flap check valve are the most critical and strict requirements in the design of the entire single-flap check valve. Design requirements, it is easy to cause the entire single disc check valve body to be scrapped. The existing processing methods of the pin hole of the single flap check valve have the following problems: first, the drilling of the lower shaft hole runs away; second, the position of the upper and lower pin holes is uncontrollable; third, the workpiece interferes with the drilling template during loading and unloading Affect workpiece loading and unloading. The...

AI Technical Summary

Problems solved by technology

The shape, position and dimensional tolerance of the pin shaft hole of this type of single-flap check valve are the most critical and strict requirements in the design of the entire single-flap check valve. Design requirements, it is easy to cause the entire single disc check valve body to be scrapped

The existing processing methods of the pin hole of the single flap check valve have the following problems: first, the drilling of the lower shaft hole runs away; second, the position of the upper and lower pin holes is uncontrollable; third, the workpiece interferes with the drilling template during loading and unloading Affect workpiece loading and unloading

The above problems are likely to cause the processing of the pin shaft hole of the single-flap check valve to fail to meet the design requirements, and the pass rate of the pin shaft hole processing of the single-flap check valve is low, resulting in waste of resources, and also affects the processing of the pin shaft hole of the single-flap check valve

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