Bent U-shaped box shell bending and splicing structure

Abstract

The invention relates to a bent U-shaped box shell bending and splicing structure. The structure comprises a first splicing plate with a first folded edge and a second splicing plate with a second folded edge. The first splicing plate and the second splicing plate are spliced to form a spliced corner structure. One end of the first folded edge and one end of the second folded edge are each provided with a 45-degree splicing edge. The first folded edge and the second folded edge are spliced through the 45-degree splicing edges. The spliced part is provided with a covering element capable of being detachably connected with the first folded edge and the second folded edge. Sharp corners, burrs, malposition and other problems caused by insufficient strength or insufficient punching precision of a punching die can be reduced. Besides, the structure is attractive after splicing, and the surface of a box shell is clean. Cut corners, smaller than 2 mm, of the punching die can be eliminated and optimized, and reliability of the punching die is improved. The splicing structure is simple, consistency is good in the production process, the yield is high, and the market and inspection complaint rate is reduced.

Description

technical field [0001] The invention relates to the field of splicing structure of refrigerator box shells, in particular to a bending splicing structure of U-shaped box shells. Background technique [0002] The existing refrigerator box shell is provided with a U-shaped structure at the edge joint of the 45-degree angle (that is, at the edge joint of the box shell sheet metal parts, the U-shaped structure formed by bending the sheet metal edge at least twice is also called a U-shaped structure. case), with figure 1 It is an expansion diagram of a common U-shaped structure, with figure 2 It is a schematic diagram after bending. Usually the structure is complex. The punching die is easy to form burrs when punching the sheet metal parts, and the precision of the splicing structure is high. A sharp angle is formed, and if it is greater than 0.5mm, an obvious dislocation will be formed, which will affect the appearance of the box shell and the efficiency of production. Cont...

AI Technical Summary

Problems solved by technology

[0002] The existing refrigerator box shell is provided with a U-shaped structure at the edge joint of the 45-degree angle (that is, at the edge joint of the box shell sheet metal parts, the U-shaped structure formed by bending the sheet metal edge at least twice is also called a U-shaped structure. case), with figure 1 It is an expansion diagram of a common U-shaped structure, with figure 2 It is a schematic diagram after bending. Usually the structure is complex. The punching die is easy to form burrs when punching the sheet metal parts, and the precision of the splicing structure is high. Form a sharp angle, if it is greater than 0.5mm, it will form an obvious dislocation, which will affect the appearance of the box shell and the efficiency of production

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