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Device for guaranteeing coaxiality of multiple lug piece holes

A coaxiality and lug hole technology, applied in the direction of drilling dies for workpieces, etc., can solve the problems that the coaxial hole is easy to exceed tolerance and cannot meet the coaxial hole, etc., and achieves the effect of improving efficiency, saving special tooling and reducing costs.

Active Publication Date: 2020-12-18
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the coaxial holes of small parts are easily out of tolerance, or the processing of coaxial holes that cannot meet the requirements of different hole sizes with a single tooling, and at the same time save costs, a device is provided to ensure the coaxiality of multi-lug holes

Method used

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  • Device for guaranteeing coaxiality of multiple lug piece holes
  • Device for guaranteeing coaxiality of multiple lug piece holes
  • Device for guaranteeing coaxiality of multiple lug piece holes

Examples

Experimental program
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Effect test

Embodiment 1

[0021] A device for ensuring the coaxiality of the multi-lug holes of the present application includes a positioning tool 2 and a U-shaped clamp 3; the positioning tool 2 is a cuboid flat plate 4 with a support 5 at one end, and the support 5 is composed of The rectangular parallelepiped strut 6 and the rectangular parallelepiped leg 7 are formed, and the strut 6 and the leg 7 are perpendicular to each other; the flat plate 4 is provided with a rectangular spacer 8 and a guide hole 9; Bolts 11 are arranged on the U-shaped body 10 and the U-shaped body 10, and the relative positions of the positioning tool 2 and the parts 16 are fixed by tightening the bolts 11. The guide hole 9 is an initial hole for guiding the tab hole 27 .

[0022] The inner surface 19 of the support is a plane and is perpendicular to the bottom plane 21 of the support.

[0023] The flat back 17 of the positioning tool 2 fits with the part lug positioning surface 18, the support inner side 19 fits with the...

Embodiment 2

[0025] A device for ensuring the coaxiality of multi-lug holes is composed of a positioning tool 2 and a U-shaped fixture 3. The hole position of a single-lug hole is determined by fitting the positioning tool 2 with the positioning surface of the part, and the bolts on the U-shaped fixture 3 11 is made up of nut 12, screw rod 13 and nut 14, and U-shaped fixture is provided with threaded hole 15 near the bottom end. The nut 12 and the nut 14 are fixed on the screw rod 13, the parts 16 and the positioning tool 2 are clamped by the U-shaped clamp 3, the bolts 11 are fastened, the holes are fixed, and the hole is made through the guide hole 9 on the positioning tool 2. When making the coaxial hole 28 of multiple lugs, by selecting the corresponding positioning surface on the part 16, the translation device is clamped, so that the coaxial hole making of multiple lug holes can be realized.

Embodiment 3

[0027] The positioning tool 2 is a rectangular flat plate 4 with a support at one end, which is used to determine the hole position of the lug hole of the part and guide the hole making. The limit plate 8 provided on the plate 4 calibrates the bonding surface of the support 5 and the part 16 to determine the position of the lug hole 27, and the guide hole 9 provided on the plate guides the hole making. The limiting pieces 8 are symmetrically distributed on both sides of the flat plate 4 .

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Abstract

The invention provides a device for guaranteeing coaxiality of multiple lug piece holes. The device comprises a positioning tool and a U-shaped clamp. The positioning tool is attached to the positioning face of a part to determine the hole position of a single lug piece hole, the U-shaped clamp is used for clamping the part and the positioning tool, bolts are fastened, the hole positions are fixed, and hole forming is achieved through a guide hole in the positioning tool. When a multi-lug-piece coaxial hole is manufactured, the corresponding positioning face on the part is selected, and a moving device is used for clamping, so that the coaxiality of the multiple lug piece holes can be realized. By selecting the corresponding positioning face on the part, the device is horizontally moved for clamping, coaxiality of the multiple lug piece holes is achieved, positioning is accurate, operation is easy, implementation is easy, the multiple coaxial guide holes can be correspondingly formed in different positions, special tools are saved, cost is reduced, and the efficiency is improved.

Description

technical field [0001] The present application relates to the technical field of mechanical processing, in particular to the technical field applied to tooling fixtures. Background technique [0002] Usually, a thin shaft is installed in the coaxial hole of the lug of a small part. Due to the small hole and high coaxiality requirements, the processing of the coaxial hole is easy to be out of tolerance, and if there is a slight deviation, the shaft cannot be installed. The cost of small parts is generally lower. If you customize the special tooling for coaxial holes, although multiple coaxial holes for one part can be produced at one time, the customization fee is higher than the cost of the parts, and due to the hole size of the ear hole of small parts There is usually a certain difference in the design value, and the number of parts is large. Only a custom set of special tooling cannot meet the requirements of coaxial hole making with different hole sizes. Contents of the...

Claims

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Application Information

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IPC IPC(8): B23B47/28
CPCB23B47/28B23B2247/12
Inventor 姚小轶邹宁张斌唐克兵程家林熊联兵
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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