Automobile automatic gluing system and method

Abstract

The invention discloses an automatic vehicle gluing system and method. The system comprises a glue supply section, a fluid disc, a spray gun, an electric proportional valve and a controller, wherein the fluid disc comprises a pressure adjuster and a flow meter; the glue supply section is connected with one end of the pressure adjuster; the electric proportional valve supplies air to the pressure adjuster according to control of the controller; the other end of the pressure adjuster is connected with the flow meter; and the pressure adjuster controls openness of the flow meter. The system further comprises an auxiliary gun valve and a main gun valve; the auxiliary gun valve is connected with the flow meter, and is closed or opened according to an instruction sent by the controller; one end of the main gun valve is connected with the auxiliary gun valve, and the second end of the main gun valve is connected with the spray gun; and the main gun valve is closed or opened according to an instruction sent by the controller. According to the automatic vehicle gluing system and method, the auxiliary gun valve is provided, and the auxiliary gun valve is opened or closed earlier than the main gun valve, so that the gluing quality defects in the prior art are eliminated.

Description

technical field [0001] The invention relates to the technology of automatic gluing for automobiles, in particular to an automatic gluing system and method for automobiles. Background technique [0002] The wheel cover and floor area of ​​the car body need to be sprayed with glue to achieve the effect of sealing and anti-stone impact. Generally, there are two production processes of manual gluing and automatic gluing. The efficiency of manual gluing is low, but the operator can see the position of the weld, and can see whether the glue has covered the weld when gluing. The quantity is also affected by manual techniques, too little can not cover the weld seam and the wheel cover, too much will cause glue accumulation, which is not conducive to the assembly and assembly, and it is wasteful and affects the appearance. As the automation level of car factories is getting higher and higher, robot automatic glue application is increasingly favored by car factories. [0003] Robot ...

AI Technical Summary

Problems solved by technology

The automatic gluing system also includes an electric proportional valve 5' and a controller 6'. The fluid plate 2' includes a pressure regulator 21' and a flow meter 22'. The conversion of the voltage signal of ' and the air flow adjusts the opening of the pressure regulator 21' and the flow meter 22' in the fluid plate 2' to achieve the set glue supply pressure and flow value. The accuracy control is relatively simple and the accuracy is low.

[0005] In addition, the glue supply is supplied by a plunger pump, and the pressure of the glue is generally around 220 to 280 bar. After the gun valve 3' in the prior art is closed, the pressure of the glue in the glue supply channel will reach nearly 300 bar. After the spray gun 4' is opened again, the pressure of the glue will reach 300 bar. When spraying glue, the high pressure in the glue supply pipeline will be released instantaneously, causing the width of the sprayed glue strip to exceed the required value. The wide glue coverage makes it impossible to assemble the final assembly; and due to the high pressure of the glue supply, when the gun valve 3′ is closed, it is affected by the pressure, so that the gun valve 3′ cannot be closed instantaneously, and excess glue will be sprayed out to produce a “snake tail”. It will also affect the spray quality

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