Single-face resistance spot welding device
A resistance spot welding, single-sided technology, applied in resistance welding equipment, resistance electrode bases, electrode features, etc., can solve problems such as virtual welding, reducing robot service life, and shaft joint wear.
Pending Publication Date: 2019-11-26
韦孚(杭州)精密机械有限公司
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Problems solved by technology
The welding tongs provide welding pressure to the plate during welding. Since the welding tongs themselves do not form a closed cycle of force, according to Newton's third law, the robot will be subjected to a reverse force. Repeated welding will cause the robot's shaft joints to wear and tear faster, reducing the Robot service life
In addition, due to its own factors such as plate size tolerance and glue coating, the gap between the plates to be welded cannot be completely fitted by applying pressure from one side, resulting in unstable welding quality on one side, and often the problem of virtual welding
Method used
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[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0029] The purpose of the present invention is to provide a single-sided resistance spot welding device that realizes a closed loop of force, perfectly improves the control accuracy of welding pressure, and provides better welding quality.
[0030] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings an...
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The invention discloses a single-face resistance spot welding device and relates to the field of welding. A first air cylinder of the single-face resistance spot welding device is connected to one endof a positive electrode stem to drive the positive electrode stem to move in a reciprocating manner, a second air cylinder of the single-face resistance spot welding device is connected to one end ofa negative electrode stem to drive the negative electrode stem to move in a reciprocating manner, a third air cylinder is connected to a supporting arm to drive the supporting arm to move in a reciprocating manner, both the first air cylinder and the second air cylinder are connected to the third air cylinder, so that the first air cylinder and the second air cylinder can move synchronously withthe supporting arm, and one end of the supporting arm is arranged opposite to the positive electrode stem and the negative electrode stem, so that a to-be-welded panel can be clamped between one end of the supporting arm and the positive electrode stem and the negative electrode stem. By arranging the supporting arm, the single-face resistance spot welding device achieves a closed loop of a force,and meanwhile, the supporting arm is matched with the positive electrode stem and the negative electrode stem, so that the control precision of a welding pressure can be improved perfectly, wear andfalse welding of a robot are reduced, and a better welding quality is provided.
Description
technical field [0001] The invention relates to the field of welding, in particular to a single-sided resistance spot welding device. Background technique [0002] With the development of the automobile industry, consumers' demand for the appearance of automobiles continues to rise. The welding requirements for the appearance parts of the automobile body-in-white are becoming more and more stringent. [0003] Single-sided welding is widely used in appearance parts and opening and closing parts. The existing single-side spot welding device is as follows Figure 8 As shown, the welding tongs are fixed on the welding robot. The welding tongs provide welding pressure to the plate when welding. Since the welding tongs themselves do not form a closed cycle of force, according to Newton's third law, the robot will be subjected to a reverse force. Repeated welding will cause the robot's shaft joints to wear and tear faster, reducing the Robot lifespan. In addition, due to the inf...
Claims
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Login to View More IPC IPC(8): B23K11/11B23K11/31B23K11/36
CPCB23K11/115B23K11/31B23K11/36B23K2101/006
Inventor 王崇江孙叔原
Owner 韦孚(杭州)精密机械有限公司