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A special fixture for welding test plate

A special fixture and test board technology, which is applied in welding equipment, auxiliary welding equipment, welding/cutting auxiliary equipment, etc., can solve problems such as uneven gaps and large deformation, and achieve assembly quality, small deformation after welding, and welding even gap effect

Active Publication Date: 2018-05-29
CRRC NANJING PUZHEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If a single clamp is used to hold the test plate, it is easy to have uneven gaps and large deformation after welding.

Method used

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  • A special fixture for welding test plate
  • A special fixture for welding test plate

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Embodiment Construction

[0019] like figure 1 , figure 2 As shown in the figure, the special fixture for welding test plate in this embodiment includes a forming plate 12 (the forming plate adopts a thick plate of more than 25mm), a forming groove 13 fixed on the surface of the forming plate by countersunk screws, and used for fixing the test plate to be welded. Four clamping mechanisms 14 on the forming plate. The clamp mechanism is provided with a lower jaw 1, an upper jaw 10 and a pressing handle 6. The lower jaw 1 is welded and fixed on the back of the forming plate 12. The upper jaw 10 is provided with an inner thread, and a compression screw 11 is screwed into the inner thread. It is used to press the test plate to be welded on the upper surface of the forming plate. like figure 2 As shown, the lower jaw 1 and the upper jaw 10 are rotatably connected with the first rivet 8, the compression handle 6 and the upper jaw are rotatably connected with the second rivet 9, and the lower jaw 7 and th...

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Abstract

The invention relates to a special fixture for welding of a testing plate. The special fixture comprises a forming plate, a forming groove and four clamping tongs mechanisms, wherein the forming groove is arranged on the upper surface of the forming plate; the four clamping tongs mechanisms are used for fixing the to-be-welded testing plate on the forming plate; each clamping tongs mechanism is provided with a lower jaw, an upper jaw and a pressing handle, each lower jaw is fixedly welded on the back surface of the forming plate, each upper jaw is provided with internal threads, and a pressing screw rod is screwed into the internal threads, and is used for pressing the to-be-welded testing plate onto the upper surface of the forming plate. The special fixture for the welding of the testing plate has the advantages that the special fixture can be used for the welding of thin, medium and thick testing plates; the pre-welding assembly quality and post-welding forming of the testing plate are effectively guaranteed; after tightening by the clamping tongs, the to-be-welded testing plate is tightly attached with the forming plate and the forming groove, the welding gap is uniform, and the post-welding deformation is smaller; the problems of improper tightening due to only use of the clamping tongs, nonuniform welding gap and large post-welding deformation amount are solved.

Description

technical field [0001] The invention relates to a special fixture for a welding test plate, which belongs to the technical field of press-fitting of a traction center of a rail vehicle bogie. Background technique [0002] Rail transit trains have complex structures and many styles, and welding process tests are required to verify the design and process before formal production. If a single clamp is used to hold the test plate, it is easy to cause uneven gaps and large deformation after welding. In order to better carry out the process test, a special welding test plate fixture is urgently needed. SUMMARY OF THE INVENTION [0003] The technical problem to be solved by the present invention is to overcome the above shortcomings of the prior art, and to provide a special fixture for a welding test plate, which can effectively ensure the forming quality of the welding seam. [0004] In order to solve the above technical problems, the special fixture for welding test plate pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K37/04
CPCB23K37/0443
Inventor 孙景南吴斌戴忠晨孟宪伟何俊喜陆安进
Owner CRRC NANJING PUZHEN CO LTD
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