Anti-abrasion inner hole machining drill bit used in shaft sleeve machining process

A processing and anti-wear technology, applied in metal processing equipment, drilling/drilling equipment, metal processing machinery parts, etc., can solve problems such as wear, poor wear resistance, and reduced service life of drill bits, and achieve enhanced wear resistance , Improve the service life and avoid wear and tear

Inactive Publication Date: 2020-06-12
CHONGQING MINGWU ELECTROMECHANICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a wear-resistant inner hole processing drill bit used in the processing of the shaft sleeve, which aims to improve the poor wear resistance of the existing drill bit for processing the

Method used

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  • Anti-abrasion inner hole machining drill bit used in shaft sleeve machining process
  • Anti-abrasion inner hole machining drill bit used in shaft sleeve machining process
  • Anti-abrasion inner hole machining drill bit used in shaft sleeve machining process

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Embodiment

[0020] Example: refer to figure 1 , figure 2 and image 3 Shown: a wear-resistant inner hole processing drill bit used in the process of shaft sleeve processing, including a drill bit 1, a connector 11 is provided at the rear end of the drill bit 1, a bearing 13 is provided at the front end of the connector 11, and the bearing 13 is interference-connected with a protective shell 2. There is a spring 23 inside the protective case 2, and the indenter 31 is plugged inside the protective case 2, and the indenter 31 and the spring 23 are fixedly connected together; the connector 11 is convenient for the drill bit 1 and the equipment to be connected together, so as to facilitate the drilling. 1. There is equipment to drive the rotation, which is convenient for the drill bit 1 to drill the shaft sleeve blank. The bearing 13 is convenient for the rotation of the protective shell 2, so as to avoid relative rotation between the protective shell 2 and the drill bit 1, and to effectivel...

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Abstract

The invention discloses an anti-abrasion inner hole machining drill bit used in a shaft sleeve machining process. The drill bit comprises a drill bit body, wherein a connector is arranged at the rearend of the drill bit body, a bearing is arranged at the front end of the connector, the bearing is in interference connection with a protective shell, a spring is arranged in the protective shell, a pressing head is inserted into the protective shell, and the pressing head and the spring are fixedly connected together. According to the drill bit, the problem that an existing drill bit for machining a shaft sleeve is poor in abrasion resistance, so that when the drill bit machines a shaft sleeve blank, a large amount of scrap iron abrades the arc side face of the drill bit, and the service lifeof the drill bit is shortened is solved, by improving and optimizing the structure of the drill bit for shaft sleeve machining, the wear resistance of the drill bit for shaft sleeve machining is effectively enhanced, the drill bit is prevented from being abraded by a large amount of scrap iron generated when the drill bit drills the shaft sleeve blank, and meanwhile, the drill bit with the structure is effectively protected, and the service life of the drill bit is effectively prolonged.

Description

technical field [0001] The invention relates to the technical field of drills, in particular to an anti-wear inner hole processing drill used in the processing of shaft sleeves. Background technique [0002] The shaft sleeve is a cylindrical mechanical part that is set on the rotating shaft. It is an integral part of the sliding bearing. Generally speaking, the shaft sleeve and the bearing seat adopt an interference fit, while the shaft sleeve adopts a clearance fit. The drill bit is used to drill the blank of the bushing, but the existing drill bit for processing the bushing has the following problems: the existing drill bit for processing the bushing has poor wear resistance, resulting in a large number of drill bits when processing the rough blank of the bushing. The iron filings wear on the arc side of the drill bit, which reduces the service life of the drill bit. Contents of the invention [0003] The purpose of the present invention is to provide a wear-resistant i...

Claims

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Application Information

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IPC IPC(8): B23B51/00B23Q11/08
CPCB23B51/00B23Q11/08B23Q11/0825
Inventor 易德华
Owner CHONGQING MINGWU ELECTROMECHANICAL
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