Sheet metal part through hole flanging tool

Abstract

The invention provides a sheet metal part through hole flanging tool, and belongs to the technical field of sheet metal part machining. The sheet metal part through hole flanging tool comprises an upper die assembly and a lower die assembly, the upper die assembly comprises a threaded rod, an upper nut, a connecting shell, an elastic piece, an upper die and a clamping piece, the threaded rod is sleeved with the upper nut in a threaded mode, the threaded rod is sleeved with the connecting shell in a sliding mode, the connecting shell is fixedly connected to the upper nut, and the elastic piece is fixedly connected to the upper die. The lower die assembly comprises a rotating seat, a lower die and a lower nut, the rotating seat is slidably connected to the threaded rod in a sleeving mode, the threaded rod is in threaded connection with the rotating seat, and by arranging the threaded rod, the upper nut, the connecting shell, the elastic piece, the upper die and the clamping piece, the upper die can be conveniently disassembled, assembled and replaced; and meanwhile, the lower die can be dismounted and replaced correspondingly, so that different size requirements of through hole flanges of different sheet metal parts are met, and the practicability is greatly improved.

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, and 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 the hidden danger of water leakage. The common waterproof treatment for the openings is to fill them with sealants, but the cleaning during the application of the sealant, the construction process, the vibration during the driving of the vehicle, 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] Announcement No. CN221639199U discloses a manual sheet metal flanging tool, wherein the lower die is mounted on the threaded portion and is located on the side of the upper die away from the upper die nut, and a protrusion is provided on the side of the lower die close to the upper die, and the protrusion cooperates with the recess; the lower die nut is mounted on the threaded portion and is located on the side of the lower die away from the upper die. The flanging work of the sheet metal can be completed conveniently and quickly, and the structural damage at the flanging location is reduced.

[0004] However, there are some defects in the above scheme: in the above scheme, the flange is performed by the cooperation 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, and the sizes of the through-hole flanges for workpieces of different sizes or reinforced use positions are also different. Therefore, the fixed protrusions and grooves have great limitations, which reduces their practicality, and the price is high if multiple tools are used. 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 protrusions and grooves of fixed sizes limit the properties of the hole flanging that can be formed, and the sizes of the through-hole flanging reinforced for workpieces of different sizes or usage positions are also different, and thus the fixed protrusions and grooves have great limitations, reducing their practicality, and the problem of high prices if multiple tools are used.

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

[0007] A through-hole flanging tool for a sheet metal part 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 in 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 comprises 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 disposed on the top of the upper mold, 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 block 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, and the clamping rod slides through the connecting groove and is clamped to the plug block.

[0014] In a specific implementation manner, the insert 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 matched with the lower mold.

[0016] In a specific implementation manner, the lower mold is fixedly connected with 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, thereby greatly improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It 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 structure of the upper mold assembly provided in the embodiment of the present application;

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

[0021] Figure 4 A schematic diagram of the upper mold structure provided for 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 A schematic diagram of the lower mold structure provided for an implementation manner of the present 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-internal 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 the present application more clearly understood, the present 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 used to limit the present application.

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

[0028] See also Figure 1-Figure 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 in 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 and utilizing the elastic effect of the first spring 141, the slider 142 can be pushed back to its original position by the first spring 141 when resetting after being squeezed and moved.

[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 plug-in, the upper mold 150 can be plug-in installed and disassembled conveniently.

[0032] In a specific implementation, 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 connection stability.

[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 implementation, the insert block 151 is provided with a slot 1512, and the snap-in rod 173 is inserted into the slot 1512. By providing the slot 1512 on the insert block 151 and inserting the insert block 151 into the slot 1512, a snap-in connection is achieved.

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

[0036] The upper mold 150 is provided with a groove matched with the lower mold 220. The groove and protrusion of each combination of the upper mold 150 and the lower mold 220 are matched 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 implementation scheme, the lower mold 220 is fixedly connected with an external thread ring 222, and the rotating seat 210 is provided with an internal thread groove 212. The external thread ring 222 and the internal thread groove 212 are threadedly connected. By setting the external thread ring 222 and the internal thread 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 up, and then the lower mold 220 pushes the through-hole edge of the sheet metal toward the inner edge of the groove of the upper mold 150. 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 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 is released, and the second spring 171 elastically recovers and pushes 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 the practicality.

[0039] It is obvious 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 features of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present application. Any reference numeral in a claim should not be regarded 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 elastic member (140), an upper mold (150) and a clamping member (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 elastic member (140) being arranged in the connecting shell (130), the upper mold (150) being slidably inserted in the connecting shell (130), and the clamping member (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) comprises a rotating seat (210), a lower mold (220) and a lower nut (240); the rotating seat (210) is slidably sleeved on the threaded rod (110); the threaded rod (110) is threadedly connected to the rotating seat (210); and the lower nut (240) is threadedly sleeved on the threaded rod (110).

2. A sheet metal through-hole flanging tool according to claim 1, characterized in that: The elastic member (140) comprises a first spring (141) and a sliding block (142); the first spring (141) is arranged in the connecting shell (130); the sliding block (142) slides through the connecting shell (130) and abuts against the first spring (141).

3. A sheet metal through-hole flanging tool according to claim 1, characterized in that: An insert block (151) is arranged on the top of the upper mold (150), a slot (132) is provided in the connecting shell (130), and the insert block (151) is slidably inserted in the slot (132).

4. A sheet metal through-hole flanging tool according to claim 3, characterized in that: The insert block (151) is T-shaped, and the slot (132) is also T-shaped.

5. A sheet metal through-hole flanging tool according to claim 4, characterized in that: The clamping member (170) comprises 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 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 insert block (151).

6. A sheet metal through-hole flanging tool according to claim 5, characterized in that: The insert block (151) is provided with a slot (1512), and the connecting rod (173) is inserted into the slot (1512).

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

8. The sheet metal through-hole flanging tool according to claim 1, characterized in that: The lower mold (220) is fixedly connected with 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.

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