Pressure valve spool precision inner hexagon processing lathe and processing technology

Abstract

The invention discloses a precision inner hexagon processing lathe for a pressure valve spool and a processing technology, including an equipment base, a moving device is arranged on the left side of the top of the equipment base, and a height adjustment mechanism is arranged on the right side of the top of the equipment base. The top on the left side of the height adjustment mechanism is provided with a lateral movement mechanism, and the bottom of the lateral movement mechanism is provided with a pull pin cutter adjustment mechanism. In actual use, the present invention uses lathe processing instead, customizes the 120° angle knife, locks the main shaft, and uses the movement of the turret in the Z direction to broach one of the hexagonal corners, and the remaining five corners allow the main shaft to rotate evenly After 60°, it is processed sequentially, so using this processing method, the amount of broaching each time is about 0.05mm, which can meet the processing accuracy of the hexagon, and the processing surface is smooth and smooth, without stamping stress, which makes it easier to control the size of the inner hexagon after heat treatment The amount of deformation reduces the circulation of parts and improves the processing efficiency.

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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