Shaft type one-jig multi-piece fuse hole machining drill jig

Abstract

The invention belongs to the field of aviation machining process equipment, and discloses a shaft type one-jig multi-piece fuse hole machining drill jig. The drill jig mainly comprises a foundation support, an angular positioning pin, a wedge block and the like. The front end of the angular positioning pin is manufactured into a conical surface structure to be matched with a product notch; and an elastic structure is made to eliminate over-positioning. The wedge block moves forwards in a wedge groove and meanwhile generates Z-direction displacement so as to make contact with products to play a supporting role, and it is guaranteed that the products do not vibrate during drilling. The foundation support serves as an integral support of the whole drill jig, is used for positioning the outer cylindrical surfaces and the bottom surfaces of the products and is matched and connected with other elements to achieve specific functions. One-jig multi-piece clamping, elastic pin angle direction fixing and wedge block stable supporting of shaft products needing to be provided with small-size fuse holes are achieved. The purposes of accurate positioning, reliable supporting, reduction of tool changing frequency and improvement of machining efficiency are achieved.

Description

technical field [0001] The invention belongs to the field of aviation machinery processing technology equipment, and is suitable for processing fuse holes of small-sized shaft products. A new set of drilling molds for processing multiple pieces of fuse holes with one mold for shafts, which can realize the processing of multiple pieces of products by one clamping. Background technique [0002] In aviation products, there are a large number of small-sized shaft parts for connection and positioning. Due to the high safety factor requirements in the aviation field, such products must have fuse holes for mechanical anti-loosening to improve reliability. According to the structure requirements of the product, the fuse holes are mostly small holes, which are not easy to guide the drill bit during processing and are easy to break when the drill bit is finely processed. This requires a special drilling jig to guide and protect the drill bit. [0003] The traditional special-purpos...

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Problems solved by technology

[0003] The traditional special drilling jig only clamps one piece at a time, which leads to problems such as high tool change frequency, long machine tool movement stroke, increased auxiliary time for frequent loading and unloading of workpieces, and low production efficiency during the machining process.

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