Pier head height control method for automatic drilling and riveting machine

An automatic drilling and riveting machine, a highly controlled technology, applied in the field of mechanical drilling and riveting, can solve the problems of poor working environment for workers, unstable product quality, low production efficiency, etc., to improve the processing environment, enhance stability, and reduce labor intensity. Effect

Active Publication Date: 2017-02-08
ZHEJIANG UNIV
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AI Technical Summary

Problems solved by technology

The production efficiency of traditional manual riveting is low, the product quality is unstable, and it is greatly affected by individual factors of workers. Moreover, the working environment of workers is harsh and the noise pollution is serious. Therefore, it is a major trend in the field of modern aircraft assembly to use automatic drilling and riveting machines instead of manual operations.

Method used

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  • Pier head height control method for automatic drilling and riveting machine
  • Pier head height control method for automatic drilling and riveting machine
  • Pier head height control method for automatic drilling and riveting machine

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Embodiment Construction

[0027] In order to describe the present invention more specifically, the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] Such as Figure 1~4 As shown, the system mainly includes four components of a base (1), a pier tightening drive module (2), a bush pressing module (3) and a riveting head (4). The tightening drive module (2) is mainly composed of the tightening drive motor (5), the tightening reducer (6), the synchronous belt pulley pair (7), the tightening ball screw nut pair (8), and the tightening force sensor mounting plate (9), pier tightening force sensor (10), pier tight guide rail slider pair (11) and length gauge (12); the bush pressing module (3) is mainly composed of bush base (13), cylinder (14) , bushing guide rail slide block pair (15) and bushing (16) are formed; Pressure riveting head (4) is mainly made up of pressure riveting ejector pin (17) and ...

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Abstract

The invention discloses a pier head height control method for an automatic drilling and riveting machine. According to the method, a lining extends out of an attached wall plate and then is braked and locked, a pressing-riveting ejector rod does linear feed motion, the relative distance between the front end face of a pressing-riveting head and the front end face of the lining is measured by a length gauge, a closed position loop feedback system is formed, errors caused by mechanical transmission and electric control are compensated for and corrected, the height of a pier head of a rivet is accurately controlled in closed-loop control, a force sensors monitors the pressing-riveting force in real time, the pressing-riveting force and the height of the pier head are mutually verified, and therefore the height of the pier head of the rivet can be accurately controlled in the pressing-riveting process of the drilling and riveting machine. After pressing-riveting is completed, the lining retracts, and then the pressing-riveting process is completed. According to the method, the height of the pier head can be accurately controlled in the pressing-riveting process of the drilling and riveting machine.

Description

technical field [0001] The invention relates to the field of mechanical drilling and riveting, in particular to a method for controlling the pier head height of an automatic drilling and riveting machine. Background technique [0002] Riveting technology is a commonly used mechanical connection technology in the assembly of aircraft panels. It has the advantages of light weight and high strength, and has been widely used in the field of aviation manufacturing. The production efficiency of traditional manual riveting is low, the product quality is unstable, and it is greatly affected by individual factors of workers. Moreover, the working environment of workers is harsh and the noise pollution is serious. Therefore, it is a major trend in the field of modern aircraft assembly to use automatic drilling and riveting machines instead of manual operations. . [0003] The current mainstream way of automatic riveting machine to achieve riveting is electric pressure riveting. The p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J15/02B21J15/28
CPCB21J15/02B21J15/28
Inventor 柯映林方强毕运波费少华
Owner ZHEJIANG UNIV
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