Machining method for small-diameter positioning pin hole

A processing method and technology for positioning pin holes, which are used in metal processing equipment, manufacturing tools, boring/drilling, etc., can solve the problems of low processing accuracy and large surface roughness of small-diameter positioning pin holes, and improve the processing quality. and strength, reduce surface roughness, and improve the effect of machining accuracy

Inactive Publication Date: 2017-04-26
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention aims to solve the technical problems of low machining accuracy and large surface roughness of the small-diameter locating pin hole in the prior ar

Method used

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  • Machining method for small-diameter positioning pin hole
  • Machining method for small-diameter positioning pin hole
  • Machining method for small-diameter positioning pin hole

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Embodiment Construction

[0026] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0027] like Figure 4 As shown, an embodiment of the present invention provides a method for processing a small-diameter locating pin hole, comprising the following steps:

[0028] Step S100, according to the first control signal, perform positioning of the pin hole 20 to be machined at a designated position on the workpiece 10;

[0029] Step S200, according to the second control signal, control the drill bit 40 to perform a hole reaming operation at the location;

[0030] Step S300 , according to the third control signal, the pin hole 20 after the hole expansion is processed by helical milling.

[0031] The above-mentioned first control signal, second control signal and third control signal can be realized by programming respectively, and the programmed program is input into the automatic numerical control machine tool to complete the contr...

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Abstract

The invention relates to a machining method for a small-diameter positioning pin hole. The machining method comprises the following steps that according to a first control signal, a pin hole to be machined is positioned in the designated position of a workpiece; according to a second control signal, a drill bit is controlled to carry out reaming operation at the positioning position; and according to a third control signal, the reamed pin hole is machined through helical milling. According to the technical scheme, the machining quality and strength of the pin hole are effectively improved, machining precision is improved, and meanwhile the surface roughness of the pin hole is effectively reduced.

Description

technical field [0001] The invention relates to the technical field of pin hole processing, in particular to a method for processing small-diameter positioning pin holes. Background technique [0002] In recent years, with the development of high-precision optical processing equipment, higher requirements have been placed on the precision manufacturing industry, and the processing and manufacturing accuracy of parts and products has been continuously improved, especially the processing of some important holes, their shape, position, dimensional accuracy and surface The roughness requirements are very high. This is related to the control accuracy of the machine tool, tool factors, coolant factors and processing methods. [0003] In the traditional pin hole processing method, ordinary drill bits are used for drilling and reaming. There are the following shortcomings in processing pin holes in this way: First, in the traditional drilling process, the linear speed of the center...

Claims

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Application Information

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IPC IPC(8): B23P15/00B23B41/00
CPCB23B41/00B23P15/00
Inventor 葛成崔涛隋永新杨怀江
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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