A device for ensuring the coaxiality of multi-tab holes

A technology of lug holes and coaxiality, which is applied in the direction of the drilling mold for workpieces, etc., can solve the problems that the coaxial holes cannot be satisfied, and the coaxial holes are easy to be out of tolerance, etc., and achieve the effects of saving special tooling, improving efficiency, and simple operation

Active Publication Date: 2022-07-15
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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  • A device for ensuring the coaxiality of multi-tab holes
  • A device for ensuring the coaxiality of multi-tab holes
  • A device for ensuring the coaxiality of multi-tab holes

Examples

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Effect test

Embodiment 1

[0021] A device for ensuring the coaxiality of multi-tab holes of the present application includes a positioning tool 2 and a U-shaped fixture 3; the positioning tool 2 is a rectangular flat plate 4 with a support 5 at one end, and the support 5 is composed of A rectangular support rod 6 and a rectangular parallelepiped support foot 7 are formed, and the support rod 6 and the support foot 7 are perpendicular to each other; the flat plate 4 is provided with a rectangular limit piece 8 and a guide hole 9; The shaped body 10 and the U-shaped body 10 are provided with bolts 11 , 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 a primary hole for guiding the lug hole 27 .

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

[0023] The flat back surface 17 of the positioning tool 2 is attached to the positioning surface 18 of the part...

Embodiment 2

[0025] A device for ensuring the coaxiality of multiple lug holes is composed of a positioning tool 2 and a U-shaped fixture 3. The hole position of the single lug hole is determined by fitting the positioning tool 2 with the positioning surface of the part. The bolts on the U-shaped fixture 3 11 consists of a nut 12, a screw 13 and a nut 14, and the U-shaped clamp is provided with a threaded hole 15 near the bottom end. The nut 12 and the nut 14 are fixed on the screw 13, the U-shaped clamp 3 is used to clamp the part 16 and the positioning tool 2, the bolt 11 is fastened, the hole position is fixed, and the hole is made through the guide hole 9 on the positioning tool 2. When making the coaxial holes 28 of the multi-tabs, by selecting the corresponding positioning surface on the part 16 and clamping the translation device, the coaxial hole-making of the multi-tab 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 piece 8 provided on the flat plate 4 calibrates the abutment 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 flat plate guides the hole. The limiting pieces 8 are symmetrically distributed on the front and back sides of the flat plate 4 .

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Abstract

The application provides a device for ensuring the coaxiality of multiple lug holes, including a positioning tool and a U-shaped fixture; the hole position of a single lug hole is determined by fitting the positioning tool and the positioning surface of the part, and the U-shaped fixture is used to clamp the parts and Positioning the tooling, tightening the bolts, fixing the hole positions, and making holes by positioning the guide holes on the tooling. When making the coaxial holes of the multi-tabs, the coaxiality of the multi-tab holes can be realized by selecting the corresponding positioning surface on the part and moving the device for clamping. In the present application, by selecting the corresponding positioning surface on the part, and clamping with a translation device, the coaxiality of the multi-tab holes is realized, the positioning is accurate, the operation is simple, and it is easy to realize, and a plurality of coaxial guide holes can be correspondingly arranged at different positions, saving the cost of Special tooling is used, which reduces costs and improves efficiency.

Description

technical field [0001] The present application relates to the technical field of machining, in particular to the technical field of tooling and fixtures. Background technique [0002] Usually, a thin shaft is installed in the coaxial hole of the small part ear piece. Due to the small hole and high coaxiality requirements, the processing of the coaxial hole is very easy to exceed tolerance, and the shaft cannot be installed with a slight deviation. The cost of small parts is generally low. If the special tooling for custom coaxial holes can produce multiple coaxial holes for one part at one time, the cost of customization is higher than the cost of parts, and due to the hole size of the ear holes of small parts There are usually some differences in design values, and the number of parts is large. Only a set of special tooling can not meet the requirements of coaxial hole making with different hole sizes. SUMMARY OF THE INVENTION [0003] In order to solve the problem that ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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