A chamfering punching device and method for hole inner wall

A technology of hole inner wall and chamfering, which is applied in the field of hole inner wall chamfering and punching equipment, which can solve problems such as chamfering deviation, achieve the effect of eliminating quality hidden dangers and ensuring product quality and consistency

Active Publication Date: 2018-08-07
沈阳兴华航空电器有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the problem of chamfer deviation in the three holes on the side wall of the square plate, and ensure the verticality and consistency of the chamfer on the inner wall

Method used

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  • A chamfering punching device and method for hole inner wall
  • A chamfering punching device and method for hole inner wall
  • A chamfering punching device and method for hole inner wall

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Effect test

Embodiment 1

[0027] The chamfering and punching device for the inner wall of the hole is constituted as follows: the chamfering and punching device for the inner wall of the hole is constituted as follows: the lower fixing plate 1, the inserting plate 2, the lower punch 3, the pillar 4, the first pin 5, the upper fixing plate 6, The upper punch 7, the second pin 8, the bolt 9, the third pin 10 and the guide post 11; wherein, the post 4 is a columnar structure with an asymmetrical ellipse in section, and the two semi-arc contact ends of the asymmetrical ellipse have R5 chamfering structure, the pillar 4 includes an axial step through hole and a first radial through hole, the axial step through hole and the first radial through hole communicate with each other, and one end of the lower punch 3 is inverted from the side wall of the punched part. The conical point structure with matching angles, the middle part of the lower punch 3 is provided with a second radial through hole, one end of the c...

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Abstract

The invention discloses a hole inner wall chamfering punching device and a method thereof. The hole inner wall side chamfering punching device is composed as follows: the hole inner wall chamfering punching device is composed as follows: a lower fixing plate (1), an inserting plate ( 2), lower punch (3), pillar (4), first pin (5), upper fixing plate (6), upper punch (7), second pin (8), bolt (9), The third pin (10) and guide post (11); wherein, the pillar (4) is a columnar structure with an asymmetrical ellipse in section, and the chamfering and punching method of the inner wall of the hole is aimed at the structural member chamfering the inner wall of the hole It provides a fast and consistent processing method, which solves the problem of deflection of the inner chamfer caused by the old fitter drilling process, and improves the processing quality of the inner chamfer of the part and meets the riveting force requirements of the bayonet. The quality stability of the product is particularly important, and it has important application value for the processing of other similar parts structures.

Description

technical field [0001] The invention relates to the technical field of chamfering punching methods, and in particular provides a hole inner wall chamfering punching device and a method thereof. Background technique [0002] A large number of housings in the connector have the processing technology of chamfering in the three horizontal holes of the housing cavity. Due to the limited space of the inner wall, the chamfering process is performed by drilling, so that the chamfering is deflected. For example, the inner cavity is φ21 .79mm shell, drilled on the φ21.79 cavity with a φ3 70° drill bit, the deviation is 10.44°, the simulation is shown in the appendix figure 2 . The smaller the inner cavity, the more serious the deviation. The chamfered part is used for riveting bayonet pins. Due to the deflection of the chamfers, it is easy to cause unreliable riveting, the riveting force is unqualified, and there are quality risks. [0003] People are eager to obtain a hole inner w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D19/08B23P15/00
CPCB21D19/08B23P15/00
Inventor 庞金红刘冬南艳明
Owner 沈阳兴华航空电器有限责任公司
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