Rectangular pipe assembling and welding expansion bracing device
An expansion device and a technology for rectangular tubes, which are applied in the field of rectangular tube group welding expansion devices, can solve the problems of reducing labor intensity and high safety hazards, huge manpower and financial resources, and high processing quality requirements, so as to reduce labor intensity and reduce Potential safety hazards and the effect of improving product quality
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[0027] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the accompanying drawings.
[0028] Such as Figure 1 to Figure 3 As shown, a rectangular pipe group butt welding expansion device includes two expansion brackets, each expansion bracket is symmetrically provided with an arc groove 5 on both sides, the center of the arc groove 5 is outward, and each arc groove 5 is There is a support leg 6 in sliding connection, one end of the support leg 6 is provided with a sliding shaft, the sliding shaft cooperates with the arc groove 5, the support leg 6 is opened, and the ends of the support legs 6 are provided with rollers 7, and each support leg 6 ends The rollers 7 on the upper part respectively abut against the four right angles of the rectangular tube 8 to be expanded. During the expansion process, the rollers 7 on the supporting legs 6 will expand the four corners, thereby indirectly...
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