Riveting device for short edge bending of sheet metal

Abstract

The present application discloses a riveting device for bending short edges of sheet metal, comprising an upper die assembly and a lower die, the upper die assembly and the lower die are respectively arranged on the upper and lower sides of the sheet metal, the upper die assembly comprises a stopper, a limit block and a bolt, the limit block is arranged facing the stopper, the bottom surfaces of the stopper and the limit block are respectively convexly provided with a pair of retaining edges, the pair of retaining edges are arranged on the left and right sides of the sheet metal, a threaded hole is concavely provided on the end surface of the stopper facing the limit block, a through hole is concavely provided on the end surface of the limit block facing the stopper, the bolt is threadedly connected with the threaded hole after passing through the through hole, a bolt hole is concavely provided on the bottom surface of the lower die, and a concave cavity for cooperating with riveting is concavely provided on the upper end surface of the lower die. The upper die assembly and the lower die of the riveting tooling fit the bent short edges of the sheet metal, thereby avoiding the sheet metal parts from being deformed outwards due to force during the riveting process, and improving the product quality; the bolts are loosened so that the tooling can be conveniently disassembled after the riveting is completed, which is convenient for the next step of riveting and improving the riveting efficiency.

Description

Technical Field

[0001] The present application relates to the field of sheet metal processing, and in particular to a riveting device for bending short edges of sheet metal. Background Art

[0002] At present, the structure with rivet holes on the bending edge of sheet metal parts is generally directly riveted by a riveting machine. Although the minimum allowable distance to the edge is specified in the technical specifications of the riveted parts, it is often slightly less than the minimum allowable distance to the edge due to structural space limitations and other reasons during the design process. If the conventional riveting method is used, the sheet will be squeezed toward the shortest side, that is, the weakest direction, and bulge outward after being pressed, resulting in the material being unable to wrap around the head of the riveted part, and thus the riveting strength cannot be guaranteed. At the same time, it will also cause problems such as local sheet deformation. The edge of the sheet bulges outward, which may cause local interference and affect assembly; the failure to meet the riveting strength will cause the riveted part to loosen, making it unable to meet the use requirements; and the local deformation of the sheet will affect the appearance and assembly effect. Therefore, it is urgent to design a tooling to be applied to the riveted structure in special circumstances. Summary of the invention

[0003] The purpose of the present invention is to provide a riveting device for bending short edges of sheet metal to overcome the deficiencies in the prior art.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] The embodiment of the present application discloses a riveting device for bending the short edges of sheet metal, characterized in that it includes an upper die assembly and a lower die, the upper die assembly and the lower die are respectively arranged on the upper and lower sides of the sheet metal, the upper die assembly includes a block, a limit block and a bolt, the limit block is arranged opposite to the block, the bottom surfaces of the block and the limit block are respectively provided with a pair of ribs protruding downward, the pair of ribs are arranged on the left and right sides of the sheet metal, a threaded hole is recessed on the end surface of the block facing the limit block, a through hole is recessed on the end surface of the limit block facing the block, the bolt passes through the through hole and is threadedly connected with the threaded hole, the bottom surface of the lower die is recessed with a bolt hole, and the upper end surface of the lower die is recessed with a recess for cooperating with riveting.

[0006] Preferably, in the above-mentioned riveting device for bending the short sides of sheet metal, a slot is provided on the end face of the block facing the limit block, an insert block matching the slot is provided on the end face of the limit block facing the stop block, and a spring connected to the end of the insert block is provided at the bottom of the slot.

[0007] Preferably, in the above-mentioned riveting device for bending the short side of sheet metal, the slot surrounds the threaded hole, and the insert block surrounds the through hole.

[0008] Compared with the prior art, the advantages of the present invention are:

[0009] The upper die assembly and the lower die of the riveting tool fit the short side of the bent sheet metal, thereby avoiding the sheet metal parts from being deformed outward due to force during the riveting process and improving product quality; the bolts can be loosened so that the tool can be easily disassembled after the riveting is completed, which is convenient for the next step of riveting and improves the riveting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, it is easy to obtain other drawings based on these drawings without creative work.

[0011] Figure 1 Shown is a schematic structural diagram of a riveting device for bending short edges of sheet metal in a specific embodiment of the present invention. DETAILED DESCRIPTION

[0012] The following will describe the technical solutions in the embodiments of the present invention in detail in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0013] Ginseng Figure 1 As shown, the riveting device for bending the short side of the sheet metal in this embodiment includes an upper die assembly 1 and a lower die 2, the upper die assembly 1 and the lower die 2 are respectively arranged on the upper and lower sides of the sheet metal 3, the sheet metal 3 is provided with a riveting hole 4, and a riveting piece 5 is placed in the riveting hole 4, the upper die assembly 1 includes a stopper 101, a limit block 102 and a bolt 103, the limit block 102 is arranged opposite to the stopper 101, and the bottom surfaces of the stopper 101 and the limit block 102 are respectively protruding downward with a pair of retaining edges 104, and the pair of retaining edges 10 4 are arranged on the left and right sides of the sheet metal 3, a threaded hole 105 is recessed on the end surface of the stopper 101 facing the limit block 102, a through hole 106 is recessed on the end surface of the limit block 102 facing the stopper 101, a bolt 103 penetrates through the through hole 106 and is threadedly connected with the threaded hole 105, a bolt hole 201 is recessed on the bottom surface of the lower die 2, the bolt hole is used to fix the lower die and the die seat on the riveting device, so that the riveting is more stable, and a recess 202 is recessed on the upper end surface of the lower die 2 to cooperate with the riveting.

[0014] Furthermore, a slot 107 is provided on the end surface of the stopper 101 facing the limit block 102 , an insert block 108 matching the slot 107 is provided on the end surface of the limit block 102 facing the stopper 101 , and a spring 109 connected to the end of the insert block 108 is provided at the bottom of the slot 107 .

[0015] Furthermore, the slot 107 surrounds the threaded hole 105, and the insert block 108 surrounds the through hole 106. The limit block can be automatically ejected by a spring when the bolt is loosened, so as to facilitate disassembly.

[0016] In this technical solution, the upper die assembly and the lower die of the riveting tooling fit the short side of the bent sheet metal, and riveting is achieved by pressing the upper die assembly downward, thereby avoiding outward deformation of the sheet metal due to force during the riveting process and improving product quality; the bolts are loosened so that the tooling can be easily disassembled after the riveting is completed, which facilitates the next step of riveting and improves the riveting efficiency.

[0017] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0018] The above is only a specific implementation method of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A riveting device for bending short edges of sheet metal, characterized in that: The invention comprises an upper die assembly and a lower die, wherein the upper die assembly and the lower die are respectively arranged on the upper and lower sides of the sheet metal, the upper die assembly comprises a block, a limit block and a bolt, the limit block is arranged facing the block, the bottom surfaces of the block and the limit block are respectively provided with a pair of ribs protruding downwards, the pair of ribs are arranged on the left and right sides of the sheet metal, the end surface of the block facing the limit block is concavely provided with a threaded hole, the end surface of the limit block facing the stop block is concavely provided with a through hole, the bolt is threadedly connected with the threaded hole after passing through the through hole, the bottom surface of the lower die is concavely provided with a bolt hole, the upper end surface of the lower die is concavely provided with a concave cavity for matching rivet, the end surface of the block facing the limit block is provided with a slot, the end surface of the limit block facing the stop block is provided with an insert block matching the slot, the bottom of the slot is provided with a spring connected to the end of the insert block, the slot surrounds the threaded hole, and the insert block surrounds the through hole.

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