Precise inner hexagon machining lathe for valve element of pressure valve and machining process of precise inner hexagon machining lathe

Abstract

The invention discloses a precise inner hexagon machining lathe for a valve element of a pressure valve and a machining process of the precise inner hexagon machining lathe. The precise inner hexagon machining lathe comprises an equipment base, a moving device is arranged on the left side of the top of the equipment base, a height adjusting mechanism is arranged on the right side of the top of the equipment base, a transverse moving mechanism is arranged on the top of the left side of the height adjusting mechanism, and a broaching tool adjusting mechanism is arranged at the bottom of the transverse moving mechanism. In actual use, lathe machining is adopted, a 120-degree-angle tool is customized, a main shaft is locked, and movement of a tool turret in the Z direction is utilized, so that one angle in a hexagon can be broached, the rest five angles are machined in sequence after the main shaft uniformly rotates by 60 degrees, and therefore, by means of the machining mode, the broaching amount each time is about 0.05 mm, the machining precision of the hexagon can be met, the machined surface is flat and smooth, no stamping stress is generated, the deformation of the size of the inner hexagon after heat treatment can be controlled more easily, circulation of parts is reduced, and the machining efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of processing inner hexagons with smaller tolerances, in particular to a precision inner hexagon processing lathe for a pressure valve core and a processing technology. Background technique [0002] The main function of the inner hexagon: the inner hexagon is an indispensable structure in the assembly of parts; the inner hexagon wrench used in conjunction with the inner hexagon can make the assembly less susceptible to space interference, and the inner hexagon is more stable than the outer hexagon. Therefore, the inner hexagon structure is widely praised. The tolerance of the conventional inner hexagon is based on the standard DIN475-1, and the minimum tolerance is 0.1. To process the inner hexagon with this precision, we generally use the stamping process, which has the advantages of high efficiency and relatively stable dimensions. It is suitable for for batch processing. [0003] But now there are inner ...

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Problems solved by technology

[0004] The object of the present invention is to provide a precision inner hexagon machining lathe for the pressure valve spool and the machining process. It has the advantages of changing the machining method to meet the machining accuracy of the parts and reducing the machining process. Hexagon, its accuracy requirement is ±0.02, and it also needs heat treatment, which has exceeded the accuracy requirement that stamping can achieve. The precision of the inner hexagon produced by stamping cannot meet the actual use requirements, and there are large errors, which is inconvenient for users. problem of use

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