A sheet metal through-hole flanging tool

Abstract

The present application provides a sheet metal through-hole flanging tool, which belongs to the technical field of sheet metal processing. The sheet metal through-hole flanging tool comprises an upper die assembly and a lower die assembly, wherein the upper die assembly comprises a threaded rod, an upper nut, a connecting shell, an elastic member, an upper die and a clamping member, wherein the upper nut is threadedly sleeved on the threaded rod, the connecting shell is slidably sleeved on the threaded rod and fixedly connected to the upper nut, the elastic member is arranged in the connecting shell, and the lower die assembly comprises a rotating seat, a lower die and a lower nut, wherein the rotating seat is slidably sleeved on the threaded rod, and the threaded rod is threadedly connected to the rotating seat. By arranging the threaded rod, the upper nut, the connecting shell, the elastic member, the upper die and the clamping member, the upper die can be easily disassembled and replaced, and different specifications can be replaced for use. At the same time, the lower die can also be disassembled and replaced accordingly, thereby adapting to different size requirements of through-hole flanging of different sheet metal parts, thereby greatly improving practicality.

Description

Technical Field

[0001] The present application relates to the field of sheet metal processing, and in particular to a through-hole flanging tool for sheet metal parts. Background Art

[0002] Sheet metal parts are widely used in the fields of electrical appliances, communications, automobiles, etc. due to their advantages such as light weight, high strength and low cost. There are more and more requirements for the processing of sheet metal parts. The covering skin on the top of the bus needs to be routed, so it is necessary to make holes in the sheet metal parts on the top, and opening holes means there is a hidden danger of water leakage. The common waterproofing treatment for the openings is to fill them with sealant, but the cleaning during the application of the sealant, the construction process, the vibration during the vehicle driving, and the quality and aging of the sealant itself will affect the sealing of the openings and cannot maintain a long-term waterproof effect. The "dam" formed by flanging the openings is a more reasonable waterproof structure.

[0003] Publication No. CN221639199U discloses a manual sheet metal flanging tool. The tool comprises a lower die, which fits over a threaded portion and is located on the side of the upper die away from the upper die nut. A protrusion is provided on the side of the lower die closer to the upper die, which engages with a recessed portion. The lower die nut fits over the threaded portion and is located on the side of the lower die away from the upper die. This tool can quickly and easily complete sheet metal flanging without damaging the structure at the flanging site.

[0004] However, there are some defects in the above scheme: in the above scheme, the flange is formed by the combination of the protrusions and grooves of the upper and lower molds, but the protrusions and grooves of fixed sizes limit the properties of the hole flanges that can be formed. The flange sizes of the through holes reinforced for workpieces of different sizes or usage positions are also different, and the fixed protrusions and grooves are more limited, which reduces their practicality. If multiple tools are used, the price is high. Summary of the Invention

[0005] In order to overcome the existing deficiencies, an embodiment of the present application provides a sheet metal through-hole flanging tool, which can solve the problem that fixed-size protrusions and grooves limit the properties of the hole flanging that can be formed, and the sizes of the reinforced through-hole flangings for workpieces of different sizes or usage positions are also different, so the fixed protrusions and grooves have great limitations, which reduces their practicality, and the problem that multiple tools are expensive.

[0006] The technical solution adopted by the embodiment of the present application to solve the technical problem is:

[0007] A sheet metal through-hole flanging tool comprises an upper die assembly and a lower die assembly.

[0008] The upper mold assembly includes a threaded rod, an upper nut, a connecting shell, an elastic member, an upper mold and a clamping member. The upper nut is threadedly sleeved on the threaded rod, the connecting shell is slidably sleeved on the threaded rod and fixedly connected to the upper nut, the elastic member is arranged in the connecting shell, the upper mold is slidably inserted into the connecting shell, and the clamping member is arranged on the outside of the connecting shell and is clamped and connected to the upper mold.

[0009] The lower die assembly includes a rotating seat, a lower die and a lower nut. The rotating seat is slidably sleeved on the threaded rod, the threaded rod is threadedly connected to the rotating seat, and the lower nut is threadedly sleeved on the threaded rod.

[0010] In a specific embodiment, the elastic member includes a first spring and a slider, the first spring is disposed in the connecting shell, and the slider slides through the connecting shell and abuts against the first spring.

[0011] In a specific embodiment, an insert block is provided on the top of the upper mold, and a slot is provided in the connecting shell, and the insert block is slidably inserted into the slot.

[0012] In a specific embodiment, the plug is T-shaped, and the slot is also T-shaped.

[0013] In a specific embodiment, the clamping member includes a second spring, a push block and a clamping rod, the connecting shell is provided with a connecting groove, the second spring is arranged in the connecting groove, the clamping rod is fixedly connected to the push block, the push block slides through the connecting groove, the clamping rod slides through the connecting groove and is clamped to the plug block.

[0014] In a specific embodiment, the inserting block is provided with a slot, and the connecting rod is inserted into the slot.

[0015] In a specific embodiment, the upper mold is provided with a groove adapted to the lower mold.

[0016] In a specific embodiment, the lower mold is fixedly connected to an external thread ring, the rotating seat is provided with an internal thread groove, and the external thread ring and the internal thread groove are threadedly connected.

[0017] The advantages of the embodiments of the present application are: by setting a threaded rod, an upper nut, a connecting shell, an elastic part, an upper mold and a clamping part, the upper mold can be easily disassembled and replaced, and can be replaced for use with different specifications. At the same time, the lower mold can also be disassembled and replaced accordingly, thereby adapting to the different size requirements of the through-hole flanging of different sheet metal parts, greatly improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1This is a schematic diagram of the structure of a sheet metal through-hole flanging tool provided in an embodiment of the present application;

[0019] Figure 2 A schematic diagram of the upper mold assembly structure provided in an embodiment of the present application;

[0020] Figure 3 Provides an enlarged structural schematic diagram of A for an embodiment of the present application;

[0021] Figure 4 A schematic diagram of the upper mold structure provided in an embodiment of the present application;

[0022] Figure 5 A schematic diagram of the structure of the rotating seat provided in the embodiment of the present application;

[0023] Figure 6 Schematic diagram of the lower mold structure provided for the implementation method of this application.

[0024] In the figure: 100-upper mold assembly; 110-threaded rod; 120-upper nut; 130-connecting shell; 132-slot; 133-connecting groove; 140-elastic member; 141-first spring; 142-slider; 150-upper mold; 151-insert block; 1512-slot; 170-clamping member; 171-second spring; 172-push block; 173-clamping rod; 200-lower mold assembly; 210-rotating seat; 212-inner thread groove; 220-lower mold; 222-external thread ring; 240-lower nut. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of this application more clear, this application is further described in detail below in conjunction with embodiments.

[0026] It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application.

[0027] In the examples, unless otherwise specified, all means used are conventional means in the art.

[0028] See also Figures 1-6 The present application provides a sheet metal through-hole flanging tool including an upper die assembly 100 and a lower die assembly 200 .

[0029] See also Figure 1 、 2, 3, 4 and 5, the upper mold assembly 100 includes a threaded rod 110, an upper nut 120, a connecting shell 130, an elastic member 140, an upper mold 150 and a clamping member 170, the upper nut 120 is threadedly sleeved on the threaded rod 110, the connecting shell 130 is slidably sleeved on the threaded rod 110 and fixedly connected to the upper nut 120, the elastic member 140 is arranged in the connecting shell 130, the upper mold 150 is slidably inserted into the connecting shell 130, the clamping member 170 is arranged on the outside of the connecting shell 130 and is clamped and connected to the upper mold 150, and there are two upper molds 150 arranged symmetrically.

[0030] Among them, the elastic member 140 includes a first spring 141 and a slider 142. The first spring 141 is arranged in the connecting shell 130. The slider 142 slides through the connecting shell 130 and abuts against the first spring 141. By setting the first spring 141 and the slider 142, the elastic action of the first spring 141 is utilized, and after the slider 142 is squeezed and moved, it can be pushed back to its original position by the first spring 141 when it is reset.

[0031] Specifically, an insert block 151 is provided on the top of the upper mold 150, and a slot 132 is opened in the connecting shell 130. The insert block 151 is slidably inserted into the slot 132. By arranging the insert block 151 and the slot 132 to be compatible and plugged in, the upper mold 150 can be plugged in and installed, which is convenient for disassembly.

[0032] In a specific embodiment, the plug block 151 is T-shaped and the slot 132 is also T-shaped. The T-shaped design of the plug block 151 and the slot 132 ensures the plug-in connection while preventing the upper mold 150 from falling, thereby ensuring the stability of the connection.

[0033] In this embodiment, the clamping member 170 includes a second spring 171, a push block 172 and a clamping rod 173. The connecting shell 130 is provided with a connecting groove 133. The second spring 171 is arranged in the connecting groove 133. The clamping rod 173 is fixedly connected to the push block 172. The push block 172 slides through the connecting groove 133. The clamping rod 173 slides through the connecting groove 133 and is clamped to the plug-in block 151. By setting the second spring 171, the push block 172 and the clamping rod 173, the elastic action of the second spring 171 is utilized to push the push block 172, so that in the absence of other external artificial forces, the push block 172 pushes the clamping rod 173 to keep the plug-in block 151 clamped.

[0034] In a specific embodiment, the plug block 151 is provided with a card slot 1512, and the card rod 173 is inserted into the card slot 1512. By providing the card slot 1512 on the plug block 151, the plug block 151 is inserted into the card slot 1512 to achieve a card connection.

[0035] See also Figure 1 、 2, 5 and 6, the lower mold assembly 200 includes a rotating base 210, a lower mold 220 and a lower nut 240, the rotating base 210 is slidably sleeved on the threaded rod 110, the threaded rod 110 is threadedly connected to the rotating base 210, and the lower nut 240 is threadedly sleeved on the threaded rod 110.

[0036] Among them, the upper mold 150 is provided with a groove adapted to the lower mold 220. The groove and protrusion of each combination of the upper mold 150 and the lower mold 220 are adapted and fit together, but the sizes of the groove and protrusion of each combination of the upper mold 150 and the lower mold 220 are different.

[0037] In a specific embodiment, the lower mold 220 is fixedly connected with an external threaded ring 222, and the rotating seat 210 is provided with an internal threaded groove 212. The external threaded ring 222 and the internal threaded groove 212 are threadedly connected. By setting the external threaded ring 222 and the internal threaded groove 212, the rotating threaded connection of the lower mold 220 is realized, which is convenient for disassembly, assembly and replacement.

[0038] The working principle of the sheet metal through-hole flanging tool is as follows: during use, first rotate the lower nut 240 to remove the rotating seat 210 and the lower mold 220, pass the threaded rod 110 through the through hole of the sheet metal, and then rotate and install the rotating seat 210 and the lower mold 220 respectively, and finally the lower nut 240, and then hold the cross bar and the connecting shell 130 at the top of the threaded rod 110 respectively, and rotate them in opposite directions, so that the rotating seat 210, the lower mold 220 and the lower nut 240 move upward, and then the lower mold 220 pushes the through-hole edge of the sheet metal toward the groove of the upper mold 150 to flanging, and after completion, rotate and remove the tool. When the sizes of the through-hole flangings of different sheet metal parts are different, the push block 172 can be pushed first to squeeze the second spring 171, the clamping rod 173 can be moved out of the slot 1512, the upper mold 150 can be pulled out, and the upper mold 150 of the corresponding size can be replaced and then inserted back. Then, the push block 172 can be released, and the second spring 171 can elastically recover and push the push block 172, so that the push block 172 drives the clamping rod 173 to be reinserted into the slot 1512, and the lower mold 220 rotates to drive the external threaded ring 222 to rotate and be removed and replaced, thereby adapting to the different size requirements of the through-hole flangings of different sheet metal parts, greatly improving practicality.

[0039] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present application is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A sheet metal through-hole flanging tool, characterized in that: include: An upper mold assembly (100), the upper mold assembly (100) comprising a threaded rod (110), an upper nut (120), a connecting shell (130), an upper mold (150) and a clamping piece (170), the upper nut (120) being threadedly sleeved on the threaded rod (110), the connecting shell (130) being slidably sleeved on the threaded rod (110) and fixedly connected to the upper nut (120), the upper mold (150) being slidably plugged into the connecting shell (130), and the clamping piece (170) being arranged on the outside of the connecting shell (130) and being clamped and connected to the upper mold (150); A lower mold assembly (200), the lower mold assembly (200) comprising a rotating seat (210), a lower mold (220) and a lower nut (240), the rotating seat (210) being slidably sleeved on the threaded rod (110), and the lower nut (240) being threadedly sleeved on the threaded rod (110); The top of the upper mold (150) is provided with an insert block (151), the connecting shell (130) is provided with a slot (132), and the insert block (151) is slidably inserted into the slot (132); The insert (151) is T-shaped, and the slot (132) is also T-shaped; The clamping member (170) includes a second spring (171), a push block (172) and a clamping rod (173); the connecting shell (130) is provided with a connecting groove (133); the second spring (171) is disposed in the connecting groove (133); the clamping rod (173) is fixedly connected to the pushing block (172); the pushing block (172) slides through the connecting groove (133); the clamping rod (173) slides through the connecting groove (133) and is clamped to the inserting block (151); The insert block (151) is provided with a slot (1512), and the connecting rod (173) is inserted into the slot (1512); The lower mold (220) is fixedly connected to an external thread ring (222), the rotating seat (210) is provided with an internal thread groove (212), and the external thread ring (222) and the internal thread groove (212) are threadedly connected.

2. A sheet metal through-hole flanging tool according to claim 1, characterized in that: The upper mold (150) is provided with a groove adapted to the lower mold (220).

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