Method for jointing metal sheets and sander

Abstract

The present invention provides a method for joining metal plates, etc., and a grinding machine, which are suitable for repairing damaged parts of metal plates such as car bodies, and damaged parts of non-ferrous metal or non-metal peripheral walls of buildings and machinery, etc., especially Join the joint or repair part of the plate with complex curved surface to form a plane or three-dimensional consistent plane, and make it achieve a precise and beautiful effect. At the same time, it also makes this joint operation reasonable and easy to implement. The joint ends of the two repaired side plate bodies 5 and 7 that are joined to each other are arranged separately in the plate thickness direction or in the direction perpendicular to the plate thickness, and the joint pieces 6 and 31 that are integral or separate from the above-mentioned metal plates are arranged on the above-mentioned One side of the joint end, and the above-mentioned joint end and the joint pieces 6, 31 are bonded; it is characterized in that, before the above-mentioned adhesive 10 hardens, the pressing plate 12 is arranged on the surface of the other side of the above-mentioned joint end, and A suction tool 15 with a magnetic force is arranged on the surface of the pressure plate 12. By the magnetic force of the suction tool 15, the above-mentioned pressure plate 12 is closely attached to the other side surface of the above-mentioned joint end, and the above-mentioned joint end is attracted by the above-mentioned magnetic force to make it Displacement, and make the above-mentioned two joint end side surfaces form a consistent plane with the above-mentioned pressure plate 12 as a reference.

Description

technical field [0001] The present invention relates to a method for joining metal plates, etc., and a grinder, which are suitable for repairing damaged parts of metal plates such as car bodies, and damaged parts of non-ferrous metal or non-metal peripheral walls of buildings and machinery, etc. In particular, it is possible to form a flat or three-dimensional consistent plane by joining the joint or repaired part of the plate body with complex curved surfaces, and achieve a precise and beautiful effect. At the same time, it also makes this joint operation reasonable and easy to implement. Background technique [0002] For example, when joining metal plates, generally, methods of overlapping or butting the metal plates, welding the joint plate against the joined metal plates, and fixing with rivets or screws are generally used. [0003] However, there will be the following problems: the thermal deformation of the metal plate during welding will cause residual stress; the imp...

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Problems solved by technology

[0003]However, the following problems will occur: when the metal plate is thermally deformed during welding, residual stress will be generated; during riveting, impact deformation will be generated around the riveting hole due to instantaneous point pressure and residual stress, and instability due to joint accuracy or post-joint deformation; in addition, the screw insertion work during screw fixing is complicated; and in either case, welding marks or rivets and screws are exposed. question

[0024] However, since the above-mentioned belt grinder supports the pad by hand for operation, the following problems arise: the work load is large and it is difficult to perform long-term operation, and at the same time , the pad body is flexible, so in order to maintain the desired curvature of the pad body, the fingers need to perform subtle operations, which increases the burden on the fingers, and the operation requires skilled operation

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