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Nanosecond laser welding small fixture for metal foil lap joint

A technology of nanosecond laser welding and lap joints, which is applied in the direction of laser welding equipment, welding equipment, welding equipment, etc., can solve the problems of being unable to apply to small-sized metal foils, etc., to improve portability, flexibility, easy disassembly, The effect of reducing the clamp volume

Inactive Publication Date: 2020-12-11
HARBIN INST OF TECH AT WEIHAI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the defect that the existing welding fixtures cannot be applied to metal foils with small sizes, the present invention provides a small nanosecond laser welding fixture for metal foil lap joints, which can be used for metal foils with small sizes. The foil is clamped and fixed, and different pressing forces are applied. It has the characteristics of small and flexible structure, easy disassembly and convenient use.

Method used

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  • Nanosecond laser welding small fixture for metal foil lap joint
  • Nanosecond laser welding small fixture for metal foil lap joint
  • Nanosecond laser welding small fixture for metal foil lap joint

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Embodiment 1

[0027] Such as figure 1 As shown, the present invention is a nanosecond laser welding small fixture for metal foil lap joints, including a support base 1, a displacement mechanism 2 and a clamping mechanism 3, the displacement mechanisms 2 are two groups, and the symmetrical sliding design On the upper surface of the supporting base 1 , the clamping mechanisms 3 are at least two groups arranged symmetrically, and are relatively fixed on the two displacement mechanisms 2 respectively.

[0028] The support base 1 is a rectangular base for placing on a workbench. There are at least two chute 11 parallel to each other on the upper surface of the rectangular base, and each chute 11 runs through the rectangular base. Spacing position on Mechanism 1.

[0029] Such as Figure 2 to Figure 5 As shown, the displacement mechanism 2 is used to drive the clamping mechanism 3 to move synchronously. This structure can realize the free sliding and fixing of the displacement mechanism 2 on t...

Embodiment 2

[0043] The only difference between embodiment 2 and embodiment 1 is that the metal foil to be welded in embodiment 2 is a single metal foil with different thickness.

[0044] Other operations are the same during use, only the clamping force exerted by the clamping mechanism is different, specifically:

[0045] Firstly, each clamping mechanism 3 determines the pressure required by the clamping mechanism 3 according to the actual thickness of the metal foil to be welded at the corresponding place; then, slide each sliding locking piece 33 to the height of the corresponding column groove 23 Finally, push the sliding locking piece 33 horizontally to the direction of the column groove 23, so that the end of the sliding piece locking piece 33 is inserted into the groove corresponding to the column groove 23. At this time, the clamping mechanism 3 is in a locked state, and the spring Keep the deformed state, and apply a constant pressure to the metal foil to be welded through the pre...

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Abstract

The invention relates to the technical field of welding, and particularly discloses a nanosecond laser welding small fixture for a metal foil lap joint. The fixture is provided for the defect that anexisting welding fixture cannot be suitable for metal foils with smaller sizes. The fixture comprises a supporting base, displacement mechanisms, and clamping mechanisms; at least two sliding groovesare formed in the upper surface of the supporting base; the two displacement mechanisms are symmetrically arranged, and the displacement mechanisms are arranged on the supporting base in a sliding mode through the corresponding sliding grooves; at least one set of the clamping mechanisms are symmetrically installed on the opposite faces of the two displacement mechanisms; and the clamping mechanisms are used for longitudinally clamping a metal foil to be welded. The nanosecond laser welding small fixture for the metal foil lap joint has the characteristics of being good in clamping effect andlight and flexible in the overall fixture; meanwhile, the problem that the small metal foils are difficult to clamp is solved; and a flexible spring and sliding locking piece clamping mode is adopted,which replaces a clamping force from traditional bolt fastening, and pneumatic and hydraulic mechanisms, so that the fixture is greatly simplified, the size of the fixture is reduced, and the good welding quality can be obtained.

Description

Technical field: [0001] The invention belongs to the field of welding technology, and in particular relates to a small nanosecond laser welding fixture used for overlapping joints of metal foils. Background technique: [0002] In modern laser processing, the development of various high-power lasers is becoming more and more sophisticated, and high-quality laser welding of various large and thick plates can be realized. With the maturity of ultra-fast laser technology, using it to connect ultra-thin metal foils below 0.5mm has become a new direction for the development of laser welding. Lap joints of dissimilar metal foils such as aluminum and copper can be widely used in tiny electronic devices such as batteries and sensors. It is urgent to use nanosecond lasers to realize the connection of such metal foil joints. However, unlike the traditional metal plate welding, the size of the metal foil is small, and the traditional thread pair mechanical structure, pneumatic mechanis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K37/04B23K26/70B23K26/21
CPCB23K37/0435B23K26/702B23K26/21
Inventor 杨彪李国新檀财旺吴来军陈波宋晓国冯吉才
Owner HARBIN INST OF TECH AT WEIHAI