Grommet welding device for hardware rigging

By designing a grommet welding device for hardware rigging including a rotating shell, a support and a centrifugal fan, the problems of low efficiency of welding longer cable chains and reduced grommet strength in the prior art are solved, and efficient welding and grommet strength are improved.

CN119951992AInactive Publication Date: 2025-05-09YANCHENG HUAYIXIN MASCH TECH CO LTD
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Patent Information

Application Number
CN202510273750.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-10
Publication Date
2025-05-09
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

When welding long hardware cable chains, existing grommet welding devices need to be frequently disassembled and assembled, which affects welding efficiency. Moreover, the welded grommets are prone to decrease in strength due to heat transfer and are prone to brittle cracking.

Method used

A grommet welding device for hardware rigging is designed, including a placement frame, a welding robot, a rotating shell, a support member and a centrifugal fan. The movable support on the rotating shell is attached with welding chains. The welding robot can weld vertical and horizontal grommets one by one. The centrifugal fan is used to transfer external air to the welding site and reduce heat transfer.

Benefits of technology

This device can improve welding efficiency, reduce the number of disassembly and assemble the hardware cable chain, avoid the grommet after welding to reduce strength due to heat transfer, and extend the service life of the grommet.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of welding, in particular to a grommet welding device for hardware rigging, which comprises a placing frame and a welding manipulator connected to the placing frame, and further comprises a rotating shell rotationally connected to the placing frame, a first supporting piece movably connected to the rotating shell and a second supporting piece movably connected to the first supporting piece, a welding chain is hung on the second supporting piece and the first supporting piece, and when the rotating shell rotates on the placing frame, the second supporting piece and the first supporting piece can move relative to the welding chain; the welding chain comprises a transverse grommet and a vertical grommet, the first supporting piece is used for supporting the vertical grommet, and the second supporting piece is used for supporting the transverse grommet, so that the welding manipulator welds the vertical grommet and the transverse grommet one by one; and the centrifugal fan is fixedly connected to the lower portion of the rotating shell and used for transmitting external air to the interior of the rotating shell, when the welding equipment is actually used, the welding manipulator can weld a plurality of welding chains at the same time, and the welding efficiency of the welding equipment on the chains can be improved.
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Description

Technical Field

[0001] The invention relates to the technical field of welding, in particular to a grommet welding device for hardware rigging. Background Art

[0002] During the manufacturing process of the hardware cable chain, there will be openings on the cable rings. In order to improve the strength of the cable chain, the staff will place the hardware cable chain on the clamping structure, and then use the welding manipulator to weld the cable rings on the cable chain. This method can indeed achieve a good welding effect on the cable rings, but it still has the following shortcomings in actual use:

[0003] 1. When the existing grommet welding device welds the cable chain, the cable chain is usually fixed on the clamping structure, and then the driving structure is used to move the welding manipulator. The welding manipulator can weld the grommet on the cable chain one by one. This method can indeed achieve a good welding effect on the grommet, but the welding device is only suitable for shorter hardware cable chains. If the staff welds longer hardware cable chains, the staff needs to frequently disassemble and assemble the hardware cable chains, which will affect the welding efficiency of the cable chain and cause the grommet welding device to occupy a larger use area.

[0004] 2. When the existing grommet welding device welds the cable chain, the heat on the grommet will be transferred to other surrounding grommet, which will cause the grommet to absorb more heat after welding, which will affect the strength of the welded grommet and cause the welded grommet to be prone to brittle cracking.

[0005] For this reason, we propose a grommet welding device for hardware rigging. Summary of the invention

[0006] A technical problem to be solved by the present application is that when the existing grommet welding device is used to weld the cable chain, the hardware cable chain needs to be frequently disassembled and assembled, which will affect the strength of the grommet after welding.

[0007] In order to solve the above technical problems, the embodiment of the present application provides a grommet welding device for hardware rigging, including a placing rack and a welding manipulator connected to the placing rack, and also includes:

[0008] A rotating shell rotatably connected to the placement rack, wherein the second support member and the first support member are movably connected to the rotating shell, and the second support member and the first support member are hung with welding chains, and when the rotating shell rotates on the placement rack, the second support member and the first support member can be moved relative to the welding chain;

[0009] The welding chain includes a transverse grommet and a vertical grommet, the first support member is used to support the vertical grommet, and the second support member is used to support the transverse grommet, so that the welding manipulator welds the vertical grommet and the transverse grommet one by one;

[0010] A centrifugal fan is fixedly connected to the lower part of the rotating shell, and is used to transmit external air to the inside of the rotating shell, so that the external air is transmitted through the welding part of the welding chain of the second support member and the first support member.

[0011] In some embodiments, a first placement portion is distributed on one side of the rotating shell on the placement rack, and a second placement portion is distributed on the other side of the rotating shell on the placement rack, and the first placement portion and the second placement portion are used to store the welding chain.

[0012] In some embodiments, the bottom of the placement rack is detachably connected to a transmission structure, and the transmission structure includes a transmission motor detachably connected to the placement rack, and the output shaft of the transmission motor is detachably connected to a gear group, and the gear group is detachably connected to a transmission rod and a transmission column, and the end of the transmission column away from the gear group is fixedly connected to the rotating shell, and the end of the transmission rod away from the transmission structure is detachably connected to a centrifugal fan, and the air outlet of the centrifugal fan is connected to the inner cavity of the rotating shell.

[0013] In some embodiments, the bottom of the rotating shell is rotatably connected to a bottom plate member, and the bottom plate member is fixedly connected to the placement rack. The bottom plate member includes a bottom plate ring rotatably connected to the rotating shell, and the bottom plate ring is fixedly connected to the placement rack. At the same time, the bottom plate ring is socketed with a transmission column, and an air inlet is opened on the bottom plate member, and the air outlet of the centrifugal fan is connected to the inner cavity of the rotating shell through the air inlet.

[0014] In some embodiments, a sliding bar is fixedly connected to the top surface of the bottom plate near the welding robot, a magnetic column structure is fixedly connected to the top surface of the bottom plate near the bottom of the sliding bar, an extension rod is fixedly connected to the top surface of the bottom plate ring near the magnetic column structure, and a fixed column is fixedly connected to the extension rod.

[0015] In some embodiments, the first support member includes a plug-in tube penetrating the rotating shell, the plug-in tubes are evenly spaced and distributed on the rotating shell near the welding robot, and an abutment sheet is fixedly connected to the upper portion of the plug-in tube.

[0016] In some embodiments, the plug-in tube is a tubular structure, an air inlet nozzle is provided at the lower end of the plug-in tube, and an air outlet is provided at the upper portion of the plug-in tube near the bottom of the abutment sheet.

[0017] In some embodiments, a rotating mouth is opened on the rotating shell, and the rotating mouth is distributed between two first supporting members. The second supporting member includes a flip column rotatably connected to the inside of the rotating mouth. The lower part of the flip column is fixedly connected with a swing rope. A sealing rubber gasket is fixedly connected between the flip column and the rotating mouth. The lower end of the swing rope is fixedly connected with a swinging magnetic ball, and the swinging magnetic ball is attracted to the magnetic column structure.

[0018] The cam is connected to the upper and lower surfaces of the sliding plate, and the sliding plate is connected to the upper and lower surfaces of the sliding plate, and the sliding plate is connected to the upper and lower surfaces of the sliding plate.

[0019] In some embodiments, the plug-in rod and the abutment plate are both hollow structures, the plug-in rod is provided with an exhaust port at a position close to the abutment plate, the flip rod is provided with a sliding airway, the interior of the sliding airway is slidably connected with an air duct, the air duct is connected to the inner cavity of the abutment plate, the flip column is provided with an air collecting cavity and an air inlet port, the inner cavity of the air collecting cavity is connected to the inner cavity of the sliding airway.

[0020] The present invention has at least the following beneficial effects:

[0021] 1. When the welding equipment is actually used, the welding manipulator can weld multiple welding chains at the same time, which can improve the welding efficiency of the welding equipment for the cable chain.

[0022] 2. When the welding equipment is actually used, the plug-in tube can support the vertical grommet on the cable chain, and the plug-in rod can support the horizontal grommet on the cable chain, so that the welding manipulator can quickly weld the cable chain, which can improve the welding efficiency of the cable chain.

[0023] 3. When the welding equipment is welding the cable chain, the plug-in rod and the plug-in tube can quickly transfer the cable chain, and can quickly weld longer cable chains, while avoiding the cable chain occupying more space during welding.

[0024] 4. When the welding equipment is welding the cable chain, the plug rod and the plug tube can transfer the external air to the welding part of the cable chain, which can prevent the heat of the grommet welding from being transferred to the welded grommet, and can prevent the welded grommet from absorbing too much heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2It is a schematic diagram of the distribution of the first supporting member and the second supporting member in the present invention;

[0027] Figure 3 It is a schematic diagram of the connection structure between the transmission structure and the rotating shell in the present invention;

[0028] Figure 4 It is a schematic diagram of the storage column and the sliding block in the present invention;

[0029] Figure 5 is a schematic structural diagram of the second supporting member in the present invention;

[0030] Figure 6 is a schematic structural diagram of the first supporting member in the present invention;

[0031] Figure 7 It is a schematic diagram of the connection structure between the sealing rubber pad and the rotating port in the present invention;

[0032] Figure 8 It is a schematic diagram of the distribution of the sliding magnetic balls and the plug holes in the present invention;

[0033] Fig. 9 Schematic diagram of the distribution of the sliding magnetic ball and the top magnetic block in the present invention;

[0034] Fig.10 for Figure 2 A is an enlarged schematic diagram.

[0035] In the figure: 1. welding manipulator; 2. placement rack; 3. first placement part; 4. rotating mouth; 5. transmission structure; 51. transmission motor; 52. transmission rod; 53. centrifugal fan; 54. transmission column; 55. gear set; 6. welding chain; 61. vertical grommet; 62. horizontal grommet; 7. rotating shell; 8. second support member; 81. plug-in rod; 82. abutment plate; 83. flip rod; 84. plug-in hole; 85. flip column; 86. air inlet port; 87. swing rope; 88. swing magnetic ball; 89. exhaust port; 810. air duct; 811. upper slide Moving column; 812, sliding sheet; 813, upper sliding groove; 814, lower sliding column; 815, sliding magnetic ball; 816, sliding airway; 817, air collecting chamber; 9, first supporting member; 91, plug-in tube; 92, air outlet; 93, abutment sheet; 94, air inlet nozzle; 10, second placement part; 11, bottom plate member; 111, bottom plate ring; 112, air inlet; 113, magnetic column structure; 114, top magnetic block; 115, extending rod; 116, fixed column; 117, spring fixed block; 118, telescopic spring; 119, sliding strip; 12, sealing pad. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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.

[0037] Example 1: Please refer to Figure 1-3 , 5-10, the present invention provides a technical solution:

[0038] A grommet welding device for hardware rigging, comprising a placing rack 2 and a welding manipulator 1 connected to the placing rack 2, and further comprising:

[0039] A rotating shell 7 is rotatably connected to the placing rack 2, and a second support member 8 and a first support member 9 are movably connected to the rotating shell 7. The second support member 8 and the first support member 9 are hung with a welding chain 6. When the rotating shell 7 rotates on the placing rack 2, the second support member 8 and the first support member 9 can be moved relative to the welding chain 6;

[0040] The welding chain 6 includes a transverse grommet 62 and a vertical grommet 61, the first support member 9 is used to support the vertical grommet 61, and the second support member 8 is used to support the transverse grommet 62, so that the welding robot 1 welds the vertical grommet 61 and the transverse grommet 62 one by one;

[0041] The welding robot 1 can be selected as a structure currently available on the market. In this document, it plays the role of welding the openings in the horizontal grommet 62 and the vertical grommet 61. At the same time, the placement rack 2 can be designed according to actual conditions. The placement rack 2 can support the rotating shell 7, so that the rotating shell 7 can drive the second support member 8 and the first support member 9 to push the welding chain 6.

[0042] Example 2: Please refer to Figure 1-10 , the present invention provides a technical solution:

[0043] A centrifugal fan 53 is fixedly connected to the bottom of the rotating shell 7 , and is used to transfer external air to the inside of the rotating shell 7 , so that the external air is transferred to the welding part of the welding chain 6 through the second support member 8 and the first support member 9 .

[0044] A first placement portion 3 is disposed on one side of the rotating shell 7 on the placement rack 2 , and a second placement portion 10 is disposed on the other side of the rotating shell 7 on the placement rack 2 . The first placement portion 3 and the second placement portion 10 are used to store the welding chain 6 .

[0045] The bottom of the placement rack 2 is detachably connected to a transmission structure 5, and the transmission structure 5 includes a transmission motor 51 detachably connected to the placement rack 2. The output shaft of the transmission motor 51 is detachably connected to a gear set 55, and the gear set 55 is detachably connected to a transmission rod 52 and a transmission column 54. The end of the transmission column 54 away from the gear set 55 is fixedly connected to the rotating shell 7, and the end of the transmission rod 52 away from the transmission structure 5 is detachably connected to a centrifugal fan 53, and the air outlet of the centrifugal fan 53 is connected to the inner cavity of the rotating shell 7.

[0046] The bottom of the rotating shell 7 is rotatably connected with a bottom plate 11, and the bottom plate 11 is fixedly connected to the placement rack 2. The bottom plate 11 includes a bottom plate ring 111 rotatably connected to the rotating shell 7, and the bottom plate ring 111 is fixedly connected to the placement rack 2. At the same time, the bottom plate ring 111 is sleeved with the transmission column 54. An air inlet 112 is opened on the bottom plate 11, and the air outlet of the centrifugal fan 53 is connected to the inner cavity of the rotating shell 7 through the air inlet 112;

[0047] It should be added that the transmission rod 52 is fixedly connected to the gear with a faster rotation speed in the gear set 55, and the transmission column 54 is fixedly connected to the gear with a slower rotation speed in the gear set 55. When the output shaft of the transmission motor 51 rotates, the gear with a faster rotation speed can drive the impeller in the centrifugal fan 53 to rotate. At this time, the impeller of the centrifugal fan 53 can drive external air to enter the interior of the rotating shell 7, and then the external air can be transmitted to the welding parts of the vertical grommet 61 and the horizontal grommet 62 through the second support member 8 and the first support member 9, so as to avoid the heat brought by the welding robot 1 from being transmitted to the vertical grommet 61 and the horizontal grommet 62 after welding during the welding of the welding chain 6. After the vertical grommet 61 or the horizontal grommet 62 is welded, the rotating shell 7 can continue to drive the second support member 8 and the first support member 9 to rotate, so that the second support member 8 and the first support member 9 can push the welding chain 6, and realize the transportation of the welding chain 6 through the second support member 8 and the first support member 9.

[0048] Example 3: Please refer to Figure 1-10 , the present invention provides a technical solution:

[0049] The top surface of the bottom plate 11 is fixedly connected to a sliding bar 119 near the welding robot 1, the top surface of the bottom plate 11 is fixedly connected to a magnetic column structure 113 near the bottom of the sliding bar 119, the top surface of the bottom plate ring 111 is fixedly connected to an extension rod 115 near the magnetic column structure 113, and the extension rod 115 is fixedly connected to a fixed column 116.

[0050] The first support member 9 includes a plug-in tube 91 penetrating through the rotating shell 7 . The plug-in tubes 91 are evenly spaced and distributed on the rotating shell 7 near the welding robot 1 . An abutment sheet 93 is fixedly connected to the upper portion of the plug-in tube 91 .

[0051] The plug-in tube 91 is a tubular structure. An air inlet nozzle 94 is provided at the lower end of the plug-in tube 91 , and an air outlet 92 is provided at the upper portion of the plug-in tube 91 near the bottom of the abutment piece 93 .

[0052] A rotating mouth 4 is opened on the rotating shell 7, and the rotating mouth 4 is distributed between two first support members 9. The second support member 8 includes a flip column 85 rotatably connected to the inside of the rotating mouth 4. The lower part of the flip column 85 is fixedly connected with a swing rope 87. A sealing rubber pad 12 is fixedly connected between the flip column 85 and the rotating mouth 4. The lower end of the swing rope 87 is fixedly connected with a swing magnetic ball 88, and the swing magnetic ball 88 is attracted to the magnetic column structure 113.

[0053] The flip column 85 is fixedly connected to the flip rod 83, and the flip rod 83 is fixedly connected to the telescopic spring 118. The end of the telescopic spring 118 away from the flip rod 83 is fixedly connected to the spring fixing block 117. The spring fixing block 117 is fixedly connected to the inner wall of the rotating port 4. The flip rod 83 is provided with an upper sliding groove 813. The interior of the upper sliding groove 813 is slidably connected to a sliding sheet 812. The sliding sheet 812 is fixedly connected to the upper sliding column 811. The end of the upper sliding column 811 away from the sliding sheet 812 is fixedly connected to the upper sliding column 811. Abutment plate 82 is fixedly connected, and a plug rod 81 is fixedly connected to the side of the abutment plate 82 away from the upper sliding column 811. A plug hole 84 is opened on the flip rod 83, and a lower sliding column 814 runs through the plug hole 84. The lower sliding column 814 is fixedly connected to the sliding sheet 812, and a sliding magnetic ball 815 is fixedly connected to the end of the lower sliding column 814 away from the sliding sheet 812. The sliding magnetic ball 815 can enter the inside of the plug hole 84, and the magnetic pole of the sliding magnetic ball 815 repels the magnetic pole of the top magnetic block 114;

[0054] When the rotating shell 7 in the welding device rotates on the bottom plate ring 111, the lower part of the plug-in tube 91 will slide on the sliding bar 119, and the plug-in tube 91 will gradually move up. When the plug-in tube 91 moves up to the highest position, the upper end of the plug-in tube 91 will penetrate the vertical grommet 61, and the vertical grommet 61 will abut on the abutment sheet 93, which can drag the vertical grommet 61, so that the welding manipulator 1 can weld the opening of the vertical grommet 61. The tube 91 continues to rotate, and the plug-in tube 91 will be separated from the sliding bar 119. At this time, the plug-in tube 91 will also be separated from the vertical grommet 61. At this time, the plug-in rod 81 will be inserted into the horizontal grommet 62 on one side of the vertical grommet 61, and the swinging magnetic ball 88 will be attracted by the magnetic column structure 113. When the swinging magnetic ball 88 is attracted by the magnetic column structure 113, the plug-in rod 81 will flip around the flip column 85. In this process, the telescopic spring 118 will be compressed, and the shape of the welding chain 6 will be bent. When the transverse grommet 62 is turned over, the welding robot 1 can weld the opening part of the transverse grommet 62. When the plug-in rod 81 turns over with the turning column 85 as the center, the sliding magnetic ball 815 will be distributed above the top magnetic block 114. Since the magnetic poles of the sliding magnetic ball 815 and the top magnetic block 114 repel each other, the top magnetic block 114 will drive the sliding magnetic ball 815 to move upward. At this time, the abutment plate 82 will drag the transverse grommet 62, which can facilitate the welding robot 1 to weld the transverse grommet 62. As the rotating shell 7 drives the second support member 8 to rotate, the sliding magnetic ball 815 will gradually move away from the top magnetic block 114. When the sliding magnetic ball 815 moves away from the top magnetic block 114, the sliding magnetic ball 815 will drive the plug-in rod 81 and the horizontal grommet 62 to separate. At this time, the shape of the welding chain 6 is reset, which can facilitate the plug-in tube 91 to plug in the next vertical grommet 61. At the same time, the telescopic spring 118 will drive the flip rod 83 to reset, which can facilitate the subsequent plug-in rod 81 to plug in the horizontal grommet 62.

[0055] When the rotating shell 7 drives the plug-in tube 91 to move, the air inside the rotating shell 7 will enter the plug-in tube 91 through the air inlet nozzle 94, and then the air inside the plug-in tube 91 will be discharged through the air outlet 92, so that the external air can blow on the vertical grommet 61, and at the same time prevent the horizontal grommet 62 from being heated after welding.

[0056] Example 4: Please refer to Figure 1-10 , the present invention provides a technical solution:

[0057] The plug rod 81 and the abutment plate 82 are both hollow structures. An exhaust port 89 is provided at a portion of the plug rod 81 close to the abutment plate 82. A sliding airway 816 is provided on the flip rod 83. An air guide tube 810 is slidably connected to the interior of the sliding airway 816. The air guide tube 810 is communicated with the inner cavity of the abutment plate 82. An air collecting cavity 817 and an air inlet port 86 are provided on the flip column 85. The inner cavity of the air collecting cavity 817 is communicated with the inner cavity of the sliding airway 816.

[0058] After the flip rod 83 in the welding device flips, the air inlet port 86 will be opposite to the bottom plate ring 111, and the air inside the rotating shell 7 will enter the air collecting cavity 817, and then the air inside the air collecting cavity 817 will enter the inside of the plug rod 81 through the air guide pipe 810, and finally the air inside the plug rod 81 will be sprayed around the horizontal grommet 62, so as to prevent the vertical grommet 61 from being heated after welding;

[0059] It should be added that the welding device shown in the document can weld multiple welding chains 6 at the same time. The staff can set the number of sliding bars 119, top magnetic blocks 114, magnetic column structures 113 and welding robots 1 on the bottom plate 11 according to actual conditions. The number of welding chains 6 needs to be the same as the number of sliding bars 119, top magnetic blocks 114, magnetic column structures 113 and welding robots 1. For ease of understanding, this document shows that there are two welding robots 1, and the two welding robots 1 are relatively distributed with reference line a as the center. It can be understood that the sliding bar 119, top magnetic block 114, magnetic column structure 113 and welding robot 1 are also relatively distributed with reference line a as the center.

[0060] 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.

[0061] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A grommet welding device for hardware rigging, comprising a placing frame (2) and a welding manipulator (1) connected to the placing frame (2), characterized in that: Also includes: A rotating shell (7) rotatably connected to the placement rack (2), a second support member (8) and a first support member (9) being movably connected to the rotating shell (7), a welding chain (6) being hung on the second support member (8) and the first support member (9), and when the rotating shell (7) rotates on the placement rack (2), the second support member (8) and the first support member (9) can be moved relative to the welding chain (6); The welding chain (6) comprises a transverse grommet (62) and a vertical grommet (61), the first support member (9) is used to support the vertical grommet (61), and the second support member (8) is used to support the transverse grommet (62), so that the welding robot (1) welds the vertical grommet (61) and the transverse grommet (62) one by one; A centrifugal fan (53) is fixedly connected to the bottom of the rotating shell (7), and the centrifugal fan (53) is used to transmit external air to the inside of the rotating shell (7), so that the external air is transmitted to the welding part of the welding chain (6) through the second support member (8) and the first support member (9).

2. The grommet welding device for hardware rigging according to claim 1, characterized in that: A first placement portion (3) is distributed on the placement rack (2) on one side of the rotating shell (7), and a second placement portion (10) is distributed on the placement rack (2) on the other side of the rotating shell (7), wherein the first placement portion (3) and the second placement portion (10) are used for accommodating the welding chain (6).

3. The grommet welding device for hardware rigging according to claim 1, characterized in that: The bottom of the placement rack (2) is detachably connected to a transmission structure (5), the transmission structure (5) comprising a transmission motor (51) detachably connected to the placement rack (2), the output shaft of the transmission motor (51) being detachably connected to a gear set (55), the gear set (55) being detachably connected to a transmission rod (52) and a transmission column (54), one end of the transmission column (54) away from the gear set (55) being fixedly connected to a rotating shell (7), the end of the transmission rod (52) away from the transmission structure (5) being detachably connected to a centrifugal fan (53), the air outlet of the centrifugal fan (53) being in communication with the inner cavity of the rotating shell (7).

4. The grommet welding device for hardware rigging according to claim 3, characterized in that: The bottom of the rotating shell (7) is rotatably connected to a bottom plate member (11), the bottom plate member (11) is fixedly connected to the placement rack (2), the bottom plate member (11) comprises a bottom plate ring (111) rotatably connected to the rotating shell (7), the bottom plate ring (111) is fixedly connected to the placement rack (2), and the bottom plate ring (111) is sleeved with a transmission column (54), an air inlet (112) is provided on the bottom plate member (11), and an air outlet of the centrifugal fan (53) is connected to the inner cavity of the rotating shell (7) through the air inlet (112).

5. The grommet welding device for hardware rigging according to claim 4, characterized in that: A sliding bar (119) is fixedly connected to the top surface of the bottom plate (11) near the welding robot (1), a magnetic column structure (113) is fixedly connected to the bottom of the sliding bar (119), a protruding rod (115) is fixedly connected to the top surface of the bottom plate ring (111) near the magnetic column structure (113), and a fixed column (116) is fixedly connected to the protruding rod (115).

6. The grommet welding device for hardware rigging according to claim 1, characterized in that: The first support member (9) comprises a plug-in tube (91) penetrating the rotating shell (7); the plug-in tubes (91) are evenly spaced and distributed on the rotating shell (7) at locations close to the welding robot (1); and an abutment sheet (93) is fixedly connected to the upper portion of the plug-in tube (91).

7. The grommet welding device for hardware rigging according to claim 6, characterized in that: The plug-in tube (91) is a tubular structure, an air inlet nozzle (94) is provided at the lower end of the plug-in tube (91), and an air outlet (92) is provided at the upper part of the plug-in tube (91) near the bottom of the abutment sheet (93).

8. The grommet welding device for hardware rigging according to claim 5, characterized in that: The rotating shell (7) is provided with a rotating opening (4), the rotating opening (4) is distributed between two first supporting members (9), the second supporting member (8) comprises a flip column (85) rotatably connected inside the rotating opening (4), a swing rope (87) is fixedly connected to the lower part of the flip column (85), a sealing rubber pad (12) is fixedly connected between the flip column (85) and the rotating opening (4), a swinging magnetic ball (88) is fixedly connected to the lower end of the swinging rope (87), and the swinging magnetic ball (88) is attracted to the magnetic column structure (113).

9. The grommet welding device for hardware rigging according to claim 8, characterized in that: The flip column (85) is fixedly connected to a flip rod (83), the flip rod (83) is fixedly connected to a telescopic spring (118), one end of the telescopic spring (118) away from the flip rod (83) is fixedly connected to a spring fixing block (117), the spring fixing block (117) is fixedly connected to the inner wall of the rotating port (4), an upper sliding groove (813) is provided on the flip rod (83), a sliding sheet (812) is slidably connected inside the upper sliding groove (813), an upper sliding column (811) is fixedly connected to the sliding sheet (812), and one end of the upper sliding column (811) away from the sliding sheet (812) is fixedly connected to the flip rod (83), and the upper sliding column (811) is fixedly connected to the sliding sheet (812). A contact plate (82) is fixedly connected, and a plug rod (81) is fixedly connected to the side of the contact plate (82) facing away from the upper sliding column (811). A plug hole (84) is opened on the flip rod (83), and a lower sliding column (814) passes through the plug hole (84). The lower sliding column (814) is fixedly connected to the sliding sheet (812). A sliding magnetic ball (815) is fixedly connected to the end of the lower sliding column (814) facing away from the sliding sheet (812). The sliding magnetic ball (815) can enter the plug hole (84), and the magnetic pole of the sliding magnetic ball (815) repels the magnetic pole of the top magnetic block (114).

10. The grommet welding device for hardware rigging according to claim 9, characterized in that: The plug rod (81) and the abutment disk (82) are both hollow structures. The plug rod (81) is provided with an exhaust port (89) at a position close to the abutment disk (82). The flip rod (83) is provided with a sliding airway (816). The interior of the sliding airway (816) is slidably connected with an air guide tube (810). The air guide tube (810) is connected to the inner cavity of the abutment disk (82). The flip column (85) is provided with an air collecting cavity (817) and an air inlet port (86). The inner cavity of the air collecting cavity (817) is connected to the inner cavity of the sliding airway (816).