Positioning fixture, tin brazing welding equipment and tin brazing welding method

Abstract

The invention relates to the technical field of welding and machining, in particular to a related technology of related welding and machining in communication devices, and to a positioning fixture, tin brazing welding equipment and a tin brazing welding method. The positioning fixture comprises a positioning panel, and a positioning part arranged on the positioning panel for conveniently mounting and positioning the positioning fixture; and the positioning panel is provided with a positioning groove for conveniently mounting and positioning workpieces, and a float clamping mechanism for conveniently clamping the workpieces mounted in the positioning groove. The positioning fixture not only can automatically clamp the workpieces mounted in the positioning groove of the positioning fixture to save a single clamping procedure after workpiece positioning, but also can prevent mutual position influence of the multiple workpieces, so that the position deviation of all the workpieces is reduced, the pseudo soldering phenomenon is reduced, and the welding quality and the operation efficiency are greatly improved; and meanwhile, the positioning fixture is higher in intelligence, and is more convenient for all operations.

Description

【Technical field】 [0001] The invention relates to the technical field of welding and processing, in particular to related technologies related to welding processing in communication devices, and in particular to a positioning fixture, soldering equipment and a soldering method. 【Background technique】 [0002] The base station antenna is a key component of mobile communication network coverage. The structure of the base station antenna product is complex. The internal structure is mainly composed of sheet metal parts, PCB circuit boards, coaxial cables and other types and varieties of components assembled and structural parts welded. [0003] The existing tin brazing operation methods in the industry are still mostly manual work. The specific operation steps of manual work are: the worker takes a workpiece and places it on the workpiece positioning fixture, and then takes the soldering iron in one hand and the solder wire in the other hand, and manually feeds the tin while wel...

AI Technical Summary

Problems solved by technology

This manual welding method generally only welds one workpiece at a time. Each workpiece needs to be installed in the positioning fixture separately, and then removed after welding. The efficiency is low, and the welding quality will be affected by the proficiency of the workers.

[0004] In recent years, with the improvement of automation level, automatic welding equipment has gradually increased. The operation method is to first locate the workpiece according to the shape of the workpiece to be welded, and then mechanically compress the workpiece separately; but since most antenna structures are die-casting or sheet metal For gold products, the deviation of the outer dimension is relatively large, so there must be enough clearance in the positioning of the outer shape to ensure that the workpiece with a large size deviation can be placed in the positioning fixture smoothly, which leads to a large cumulative position error when welding multiple workpieces at one time , If the position error of the workpiece is too large, it will cause the alignment of the soldering iron and the deviation of the tin feeding, which will lead to the phenomenon of false soldering; therefore, the current automatic welding in the industry is mostly based on welding one workpiece at a time. When welding, it is necessary to frequently pick and place the workpiece and switch the machine, and an independent pressing process is required after the workpiece is positioned, and its operating efficiency is not significantly improved compared with manual operation.

[0005] To sum up, since tin brazing accounts for a very large amount of work in antenna production, how to improve the efficiency of tin brazing operations under the premise of ensuring welding quality is a problem that the industry expects to solve

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