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Machining method for deep inclined two-section hole in engine case

A technology of engine case and processing method, which is applied in the direction of metal processing equipment, manufacturing tools, drilling/drilling equipment, etc., and can solve the problems such as unqualified coaxiality of the first section of the inclined hole and the second section of the inclined hole, etc. Achieve the effect of small deflection angle and guarantee the coaxiality requirement

Active Publication Date: 2022-01-04
CHINA HANGFA SOUTH IND CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a method for processing deep oblique two-stage holes on the engine casing to solve the problem of the first oblique hole in the existing precision oblique hole processing process. The technical problem of unqualified coaxiality with the second section of inclined hole

Method used

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  • Machining method for deep inclined two-section hole in engine case
  • Machining method for deep inclined two-section hole in engine case
  • Machining method for deep inclined two-section hole in engine case

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Embodiment Construction

[0028] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in various ways defined and covered below.

[0029] figure 1 It is a structural schematic diagram of the engine case of the present invention; figure 2 It is a flow chart of the processing method of the deep oblique two-stage hole on the engine casing of the preferred embodiment of the present invention; image 3 It is a schematic diagram of the processing method of the deep oblique two-stage hole on the engine casing of the preferred embodiment of the present invention; Figure 4 is a structural schematic diagram of a drill bit in a preferred embodiment of the present invention; Figure 5 yes Figure 4 The front view of the drill in ; Figure 6 yes Figure 4 The first side view of the drill bit in; Figure 7 yes Figure 4 Second side view of the drill bit in .

[0030] Such as figure 2 and imag...

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Abstract

The invention discloses a machining method for deep inclined two-section holes in an engine case. The machining method comprises the following steps that S10, rough machining is carried out on the engine case along the design angle of a first section of inclined hole by adopting a short-edge cutter to form a first primary inclined hole; S20, a long-edge tool is adopted, the long-edge tool penetrates through the first primary inclined hole and is guided through the first primary inclined hole, and rough machining is conducted on the engine case along the design angle of the second section of inclined hole to form a second primary inclined hole; and S30, a finish machining tool is adopted, the first primary inclined hole is subjected to finish machining, so that the first primary inclined hole forms a first section of inclined hole, and the second primary inclined hole is subjected to finish machining, so that the second primary inclined hole forms a second section of inclined hole. According to the machining method for the deep inclined two-section hole in the engine case, the coaxiality requirement of the first-section inclined hole and the second-section inclined hole can be met.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a processing method for a deep oblique two-segment hole on an engine case. Background technique [0002] The casing assembly of the engine is an important part of the aero-engine. There are precision oblique holes inside and around the casing, and the precision requirements for the diameter and position of the precision oblique holes are high. [0003] Such as figure 1 As shown, a certain engine casing is provided with a deep inclined two-stage hole (precision inclined hole) arranged obliquely along the axial direction. The deep inclined two-stage hole includes a first section of inclined hole and a second section There is a gap between the first section of inclined hole and the second section of inclined hole, wherein the first section of inclined hole is a through hole, the second section of inclined hole is a blind hole, and the precision inclined hole is a mult...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B35/00B23B51/00
CPCB23B35/00B23B51/00
Inventor 刘伟淋廖旺吴学深陶蒙肖宗元
Owner CHINA HANGFA SOUTH IND CO LTD
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