Fixture for edge grinding of twin-stage gun drill

A technology of gun drilling and sharpening, which is applied in the directions of drilling tool accessories, drilling/drilling equipment, and components of boring machines/drilling machines, etc., to achieve the effects of excellent cutting performance, less equipment investment and simple structure

Inactive Publication Date: 2013-08-28
NANTONG WIEDSON FUEL INJECTION EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no simple grinding equipment in China, but imported five-axis lin

Method used

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  • Fixture for edge grinding of twin-stage gun drill
  • Fixture for edge grinding of twin-stage gun drill
  • Fixture for edge grinding of twin-stage gun drill

Examples

Experimental program
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Example Embodiment

[0014] Below in conjunction with the accompanying drawings, the present invention is described in detail, such as figure 1 As shown, the core part of the fixture of the present invention is that the feed is composed of a casing 6, a screw movement shaft 4, and a screw guide sleeve 8, wherein the screw guide sleeve 8 is fixed in the casing 6, and the screw movement shaft 4 is threadedly connected with the screw guide sleeve 8, One end of the helical motion shaft 4 is the force application end, and the helical motion shaft 4 is axially moved in the helical guide sleeve 8 by rotating at the force application end. In order to facilitate the rotation of the helical motion shaft 4, a working knob 3 is fixed at the force-applying end, and a spring 5 is arranged between the working knob 3 and the helical guide sleeve 8, and the effect of the gap during feeding and rotation is eliminated by the spring 5.

[0015] In the process of machining feed, in order to prevent the friction be...

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Abstract

The invention discloses a fixture for edge grinding of a twin-stage gun drill. The fixture comprises a base and a first rotating shaft arranged on the base. The first rotating shaft is provided with a rotating bracket; the rotating bracket is provided with a second rotating shaft; the second rotating shaft is provided with a shell capable of rotating around the second rotating shaft; a spiral guide sleeve and a spiral motion shaft are arranged in the shell; the spiral guide sleeve is fixedly connected with the shell; the spiral guide sleeve and the spiral motion shaft are in threaded connection; one end of the spiral motion shaft is a force application end; and springs are arranged between the force application end and the spiral guide sleeve. Compared with the prior art, the fixture disclosed by the invention adopts a mode that the spiral motion shaft and the spiral guide sleeve are fed, and the springs are arranged between the spiral motion shaft and the spiral guide sleeve, wherein the springs can be used for eliminating gaps when spiral feeding is performed; by the spiral feeding mode, not only can the feeding precision be ensured, but also relief angles of grinding can be kept consistent due to the fact that a rotation exists while linear feeding is performed so as to achieve excellent cutting property.

Description

technical field [0001] The invention relates to a jig, in particular to a jig for grinding a two-stage gun drill edge. Background technique [0002] The pump end pressure of the diesel engine fuel system has been increased from 800bar to 1200bar, and the pump end pressure of the electronically controlled common rail system has been increased to 1800bar. According to the data, the pressure of the latest common rail system of BOSCH has been increased to 2500bar. The opening pressure of the injector is increased from below 20Mpa to 25-30Mpa. Due to the increasing emission requirements of diesel engines, the injection pressure of diesel fuel system is continuously increased to improve the atomization of diesel oil, which is conducive to more complete combustion of fuel in the combustion chamber, thereby reducing the emission of nitrogen compounds and particulate matter. [0003] For this reason, the structure of the high-pressure fuel channel of the fuel injector is improv...

Claims

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Application Information

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IPC IPC(8): B24B3/24
Inventor 杨枢泽
Owner NANTONG WIEDSON FUEL INJECTION EQUIP
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