Spot welding electrode protector
A protection device and spot welding electrode technology, applied in welding equipment, resistance welding equipment, metal processing equipment, etc., can solve the problems of unreasonable detail design, large volume, complex structure, etc., and achieve easy implementation, small volume, and structural simple effect
Inactive Publication Date: 2011-04-20
TIANJIN UNIV
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
The above-mentioned resistance spot welding electrode life extension device has complex structure, large volume, and unreasonable detail design, for example, the step counting device is not accurate, which makes it impossible to install it in the corresponding equipment
Method used
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Embodiment Construction
[0032] The present invention will be described in further detail below in conjunction with the drawings and specific embodiments.
[0033] The spot welding electrode protection device of the present invention is composed of two sets of protection units with the same structure and fixing upper and lower electrodes respectively. Take one of the protection units as an example for detailed description.
[0034] Such as Figure 2-3 with Figure 2-4 As shown, the protection unit includes a bracket body 103, above the bracket body 103 is a fork frame structure, and one end of the bracket body 103 is provided with a movable bracket 101 that is fixedly connected to the electrode 130 and can move up and down; The lower part of the bracket body 103 is a "door" frame 105, the "door" frame 105 is provided with an inner bracket 113 that can move up and down, and the bottom of the "door" frame 105 is provided with a base 114, the base 114 The bottom surface is coated with an insulating coating; ...
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Abstract
The invention discloses a spot welding electrode protector which comprises two groups of protecting units, wherein the two groups of protecting units have the same structure and are used for fixing an upper electrode and a lower electrode respectively; each protecting unit comprises a support body, and one end of the support body is provided with a movable support which is fixedly connected with electrodes and can move up and down; the lower part of the support body is provided with a portal frame, the portal frame is internally provided with an inner support which can move up and down, the bottom of the portal frame is provided with a base, and the bottom surface of the base is coated with an insulating coating; the inner support is internally provided with a transverse shaft which is fixedly connected with a pair of gears and is provided with a replaceable metal piece, and the two sides of the transverse shaft are provided with racks which are matched with the pair of gears; the pair of gears are provided with ratchet pawl mechanisms, pawls in the ratchet pawl mechanisms are connected with the support bodies via tension springs, and the pawls are pressed on the gear teeth of the ratchet wheels at any time under the tension of the tension springs; and the ratchet pawl mechanisms drive the two gears to rotate, and the two gears drive the metal piece to move. By the invention, the defects of the electrodes such as alloying, abrasion, pointed corrosion, thermal fatigue and the like can be reduced, and the service life of the electrodes can be prolonged, thus achieving the aim of electrode protection.
Description
Technical field [0001] The invention relates to a device for improving the life of a spot welding electrode, in particular to a spot welding electrode protection device. Background technique [0002] At present, in modern aviation, automobile and household appliances industries, the application of galvanized steel plate and aluminum alloy plate with better anti-rust ability and long service life is increasing. Due to the large number of thin plate structures, spot welding processes are generally used to obtain good welding quality. [0003] In the spot welding process, the main function of the spot welding electrode is to transmit current, pressurize and dissipate heat. The welding current during spot welding can be as high as thousands to tens of thousands of amperes, the electrode pressure can reach several hundred MPa, and the diameter of the electrode head As the electrode use time increases, it will lead to a decrease in current density during spot welding, which will reduce ...
Claims
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Inventor 罗震刘伟孟繁亮左迪
Owner TIANJIN UNIV