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
CN106424265BActive Publication Date: 2018-08-07沈阳兴华航空电器有限责任公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
沈阳兴华航空电器有限责任公司
Publication Date
2018-08-07

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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.
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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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