Combined guide roller structure for puncher

Abstract

The invention discloses a combined guide roller structure for a puncher, and particularly relates to the technical field of puncher guide rollers. The combined guide roller structure for the puncher comprises a guide roller body, wherein an auxiliary mechanism is arranged inside the guide roller body; the auxiliary mechanism comprises a first sleeve, the first sleeve is fixedly arranged on one side of an inner cavity of the guide roller body, an inner barrel is fixedly arranged inside the first sleeve, a first connecting plate is fixedly arranged on one side of the inner barrel, two first screws are arranged on the first connecting plate, and a first cavity is formed inside the guide roller body; and the auxiliary mechanism further comprises a second sleeve. According to the combined guideroller structure for the puncher, through the design of the auxiliary mechanism, the rotation precision and the axial precision of the guide roller body are ensured, and the precise requirement of the puncher is met, so that an existing puncher can machine a high-precision steel pipe, and avoid the problem of dry friction generated between a punching ejector rod and the guide roller, the circumferential wall thickness of the steel pipe is more uniform, and meanwhile, the normal service life of the guide roller body is further ensured.

Description

technical field [0001] The invention relates to the technical field of guide rollers for piercing machines, in particular to a combined guide roller structure for piercing machines. Background technique [0002] EDM punching machine refers to the EDM machine tool that uses the principle of EDM to process holes with a size less than 5mm. It is used to process small and medium-sized dies. Its processing feature is not limited by the hardness of metal materials. The template can be quenched first and then used This machine processes the hole type required to ensure the quality and improve the service life. The material of the tool electrode can be steel, cast iron, or copper. The punching machine can be roughly divided into two types according to the different media used. One is the liquid punching machine. When liquid is processed, it needs to pass through the small hole of the copper rod, which may block the small hole of the copper rod. Therefore, the smallest hole that can ...

AI Technical Summary

Problems solved by technology

[0005] For this reason, the embodiment of the present invention provides a piercing machine combined guide roller structure, through the design of the auxiliary mechanism, the rotation accuracy and axial precision of the guide roller body are ensured, and the precise requirements of the piercing machine are met, making the existing piercing machine It can process high-precision steel pipes, avoiding the problem of dry friction between the perforated mandrel and the guide roller, making the circumferential wall thickness of the steel pipe more uniform, and at the same time ensuring the normal service life of the guide roller body, so as to solve the frequent jamming of the guide roller The non-rotation phenomenon causes dry friction between the perforated ejector pin and the guide roller, and eventually the guide roller grinds out an arc groove corresponding to the ejector pin, which makes the perforated ejector pin deviate from the center of the steel pipe, resulting in uneven wall thickness of the steel pipe circumference and cannot compliance issues

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