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Guide hole machining method

A processing method and technology of guide holes, applied in the field of inner hole processing, can solve the problems of high cost, difficulty in meeting the delivery date and cost requirements of users' batch products, low production efficiency, etc., and achieve the effect of low cost

Pending Publication Date: 2021-08-13
ZIGONG CEMENTED CARBIDE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For such structural products, the conventional processing method is to cut the inner straight hole by wire electric discharge first, and then process the end face taper hole by electric pulse equipment. Because the cost of electric pulse machining end face taper hole is extremely high, it accounts for the entire finishing cost. More than 70%, and the production efficiency is very low, it is difficult to meet the delivery time and cost requirements of users for batch products

Method used

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Embodiment 1

[0049] This embodiment takes the production of the tapered hole of the bushing as an example, and gives a detailed explanation of the method for producing the tapered hole of the bushing provided by the present invention.

[0050] In this embodiment, the shaft sleeve with tapered hole to be processed is as follows: figure 1 As shown, the inner straight hole of the shaft sleeve is required to have an inner diameter of Φ1.6+(0~0.025)mm, and the size of the guide hole of the shaft sleeve is required to be a diameter of Φ2.5±0.3mmx5±1mm.

[0051] The processing method adopted in this embodiment is wire electric discharge cutting to ensure the shape of the taper hole. The method for processing the above-mentioned bushing taper hole provided in this embodiment includes the following steps:

[0052] (1) After the commissioning is completed, the wire cutting inner hole taper tooling is completed, the program origin is set, the program is positioned at the program origin, the wire drum...

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Abstract

The invention relates to the technical field of guide hole machining, in particular to a guide hole machining method. A guide hole comprises two taper holes of the same structure and a cylindrical hole located between the two taper holes and coaxially formed, wherein the small ends of the two taper holes are connected with the cylindrical hole. The guide hole machining method is characterized by specifically comprising the following steps that S1, the cylindrical hole is machined in a linear cutting mode; S2, the taper holes are machined; S21, an upper guide wheel and a lower guide wheel of a linear cutting machine are controlled to drive a linear cutting wire to be offset, wherein the offset angle is a; S22, the upper guide wheel and the lower guide wheel of the linear cutting machine are controlled to drive the linear cutting wire to be offset, wherein the offset angle is -a, and a taper angle shape is formed; S23, the upper guide wheel and the lower guide wheel of the linear cutting machine are controlled to drive the linear cutting wire to be offset and return to the offset angle a, and the taper hole shape is formed; and S3, the upper guide wheel and the lower guide wheel are controlled to drive the linear cutting wire to form a vertical angle, and the original point of the program is returned; and machining is completed. The method is fast in machining and low in cost.

Description

technical field [0001] The invention relates to the technical field of inner hole processing, in particular to a method for processing a guide hole. Background technique [0002] In order to meet the requirements of use, it is necessary to process the inner holes of sleeve parts. Taking the shaft sleeve widely used in the oil exploration industry as an example, the structure is as follows figure 1 As shown, in order to meet the use requirements in the operation and process production process, it is necessary to process the inner hole and taper hole of the bushing, which includes processing the straight inner hole for positioning and the tapered hole on the end face for guiding. For such structural products, the conventional processing method is to cut the inner straight hole by wire electric discharge first, and then process the end face taper hole by electric pulse equipment. Because the cost of electric pulse machining end face taper hole is extremely high, it accounts fo...

Claims

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Application Information

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IPC IPC(8): B23H7/02
CPCB23H7/02
Inventor 苏伟吴翔
Owner ZIGONG CEMENTED CARBIDE CORP
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