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A clamping tool for preventing loosening of aviation structural parts and its use method

A technology for aviation structural parts and clamping tools, which is applied in the directions of manufacturing tools, clamping, positioning devices, etc., to achieve the effects of reducing production costs, high reliability, and good versatility

Active Publication Date: 2022-05-06
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a clamping tool for preventing loosening of aviation structural parts and its use method, which is safe and convenient to operate, strong in clamping stability and reliability, and can solve the problem of loosening and slipping of ordinary jacking blocks after the parts are clamped. It can be used as a top block to limit the position, and can also be used as a clamping plate to fix it. It is widely used in the rough machining process and has good versatility. It improves the processing quality of aircraft structural parts and reduces the production process. Potential safety hazards in the machine, reducing production costs, after the parts are turned over, they can be quickly aligned through the positioning pin hole, which is convenient for the operator to quickly align and improve the clamping efficiency

Method used

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  • A clamping tool for preventing loosening of aviation structural parts and its use method
  • A clamping tool for preventing loosening of aviation structural parts and its use method
  • A clamping tool for preventing loosening of aviation structural parts and its use method

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Experimental program
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Effect test

Embodiment 1

[0037] A clamping tool for preventing loosening of aviation structural parts, belonging to the field of numerical control machining of aviation structural parts, reference figure 1 , 2 , 3, 6, comprising a multifunctional top block 2, a wedge block 3, a gasket 4, a nut 5 and a screw 6, the middle part of the multifunctional top block 2 is provided with a through groove 9, and the through groove 9 includes an upper through hole 10 and the lower through hole 11, the connection surface between the upper through hole 10 and the lower through hole 11 is a slope 12, the horizontal section of the upper through hole 10 is greater than the horizontal section of the lower through hole 11, and the two Each end is provided with a positioning pin hole 13, and the screw 6 passes through the multifunctional top block 2, the wedge block 3, and the gasket 4 successively from bottom to top and is fixed by the nut 5.

[0038] This embodiment is the most basic implementation mode. When in use, t...

Embodiment 2

[0040] This embodiment is a further optimization on Embodiment 1. The angle between the slope 12 at the junction of the upper through hole 10 and the lower through hole 11 and the horizontal plane is α=7°. In practical applications, the angle of the designed slope 12 is Certain error, refer to figure 2 , it is found that when the value of α is 5°≤α≤10°, the effect is better.

Embodiment 3

[0042] Compared with Embodiment 1-2, this embodiment differs in that the slope I14 of the wedge block 3 matches the slope 12 .

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Abstract

The invention discloses a clamping tool for preventing loosening of aviation structural parts, relates to the field of numerical control machining of aviation structural parts, and comprises a multifunctional top block, a wedge block, a gasket, a nut and a screw. groove, the through groove includes an upper through hole and a lower through hole, the connecting surface of the upper through hole and the lower through hole is an inclined plane, the horizontal section of the upper through hole is larger than the horizontal section of the lower through hole, and the multifunctional A positioning pin hole is provided at both ends of the top block, and the screws pass through the multifunctional top block, wedge block, and gasket from bottom to top and are fixed by nuts. The problem of loosening and slipping of the top block after the parts are clamped is narrow in versatility, high in production cost, and inconvenient to use.

Description

technical field [0001] The invention relates to the field of numerical control machining of aeronautical structural parts, in particular to a clamping tool for preventing loosening of aeronautical structural parts and a use method thereof. Background technique [0002] In the process of CNC machining and conventional machining of aircraft body and structural parts, it is necessary to clamp and fix the parts on the machine tool table in preparation for machining. However, there are generally four kinds of clamping methods that are most widely used at present: clamping and fixing with the top block to determine the position of the pressing plate, clamping and positioning with the general aperture platform tooling, and clamping and positioning with special tooling and vise clamps. The general-purpose pore platform tooling is generally only suitable for rough machining when there are corresponding pressing holes on the blank or finishing machining; the special tooling design has...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q3/06
CPCB23Q3/06
Inventor 文琴刘伟军徐正德涂安高伟东马康彭彩霞张淑清马青
Owner CHENGDU AIRCRAFT INDUSTRY GROUP