Large-scale ultrasonic defrosting air duct and instrument panel sealing welding process
A technology of ultrasonic welding and sealing welding, applied in welding equipment, manufacturing tools, non-electric welding equipment, etc., can solve the problems of airtightness of defrosting air duct and instrument panel, affecting the effect of defrosting and defogging, and the existence of risk factors, etc. Achieve the effects of enhancing defrosting and defogging effects, reducing the use of glue or bolts, and reducing weight
Active Publication Date: 2018-08-03
江苏新昌汽车部件有限公司
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Problems solved by technology
[0002] The defrosting ability of the car is very important to the safety of the car. If the welding of the defrosting air duct and the instrument panel is not tight, it will cause air leakage, which will affect the defrosting and defogging effect, and then affect the driver's sight and cause driving hazards; and In the prior art, in order to improve the connection stability between the defrosting air duct and the instrument panel, measures such as glue are used to tightly bond the defrosting air duct to the instrument panel to improve the airtightness of the connection between the two. After a period of use, its performance will decline, and its function will gradually disappear, so when its function disappears, the airtightness between the defrosting air duct and the instrument panel will be affected, so there is a risk factor
Method used
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Experimental program
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Effect test
Embodiment
[0019] Embodiment: Large-scale ultrasonic defrosting air duct and instrument panel seal welding process, including the following steps:
[0020] 1) Feeding: The action system of the whole machine controls the raw materials to the required position for automatic feeding;
[0021] 2) Press molding of the instrument panel body: feed materials according to the formula ratio, and integrally form the instrument panel body structure in the extruder, cool down, and perform surface treatment to obtain the finished product;
[0022] 3) Compression molding of defrosting air duct: feeding materials according to the formula ratio, and integrally forming the defrosting air duct structure in the extruder, cooling down, and surface treatment to obtain the finished product;
[0023] 4) Preheating: preheat the upper instrument cover and the lower instrument cover respectively before welding with the instrument panel body, and the preheating temperature is 50-60°C;
[0024] 5) Welding of the in...
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The invention discloses a process of large ultrasonic seal welding for a defrosting air duct and an instrument panel. The process comprises the steps of 1, loading, 2) compression molding of an instrument panel body, 3) compression molding of a defrosting air duct, 4) preheating, 5) welding of the instrument panel body and the defrosting air duct, 6) cooling, and 7) weld joint treatment. In the process provided by the invention, a PLC computer control system is employed for the welding of the defrosting air duct, allowing safe and accurate motions, and high-precision welding at a high speed and in high efficiency; a built-in protection system is provided to ensure safe and stable welding. In addition, according to a large ultrasonic welding technique adopted in the process provided by the invention, a sudden increase of acoustic resistance at a welding interface causes a local high temperature such that the defrosting air duct is reliably welded to the instrument panel body; the whole procedure is controlled full automatically, and integration of the instrument panel and the defrosting air duct is achieved without glue and bolt. Moreover, the process provided by the present invention performs strict control on the cooling step after welding, thus guaranteeing the forming quality of a welding junction.
Description
technical field [0001] The invention relates to a large-scale ultrasonic defrosting air duct and a sealing welding process for an instrument panel. Background technique [0002] The defrosting ability of the car is very important to the safety of the car. If the welding of the defrosting air duct and the instrument panel is not tight, it will cause air leakage, which will affect the defrosting and defogging effect, and then affect the driver's sight and cause driving hazards; and In the prior art, in order to improve the connection stability between the defrosting air duct and the instrument panel, measures such as glue are used to tightly bond the defrosting air duct to the instrument panel to improve the airtightness of the connection between the two. After a period of use, its performance will decline, and its function will gradually disappear. Therefore, when its function disappears, the airtightness between the defrosting air duct and the instrument panel will be affect...
Claims
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IPC IPC(8): B29C65/08B23K20/10
CPCB23K20/10
Inventor 唐冬平王哲伟王文胜
Owner 江苏新昌汽车部件有限公司