Perforating jig for protecting automobile wire harness

Abstract

The utility model discloses a punching jig for protecting automobile wire harnesses, which comprises a first shell and a second shell, the first shell comprises a first boss and a second boss, and the second shell comprises a third boss and a fourth boss. The first magnet and the second magnet are used for attracting the metal plate so that the second boss and the fourth boss can abut against the metal plate. According to the technical scheme of the utility model, the first boss and the third boss are spliced to form the through hole, so that the wire harness can pass through a metal plate hole through the through hole to avoid interference caused by direct contact with a metal plate during perforation assembly operation, thereby reducing the risk that the wire harness is scratched and damaged by the metal plate, and ensuring the assembly quality; through the arrangement of the first magnet and the second magnet, the automobile wire harness perforating jig and the metal plate can be rapidly attracted and are not prone to falling off through magnetic force, and the problems that operation is not easy, the number of steps is large, and efficiency is low during perforating assembly operation of the automobile wire harness are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle wiring harness installation, in particular to a perforation fixture for protecting automobile wiring harnesses. Background Art

[0002] With the rapid development of science and technology and the Internet, the automotive industry is also constantly developing and changing. Competition among automobile OEMs is becoming increasingly fierce. In order to adapt to the law of survival, reducing manufacturing costs has become the primary issue for OEMs. The assembly of wire harnesses has always been a link that takes up a lot of man-hours in automobile manufacturing. The wire harnesses themselves are complex, the layout is cumbersome, the installation range is narrow, the environment around the body is harsh, and the plugs and wires in the wire harnesses are fragile and easy to damage, which makes them lose a lot during the assembly process. Especially in the assembly of the body penetration part, the wire harness needs to pass through the sheet metal hole and have direct contact with the sharp sheet metal, which may cause the wire harness to be scratched, damaged and other undesirable conditions. In order to ensure quality, the operator needs to confirm a lot of key points in the assembly process. The soft wire harness needs to be arranged into a certain shape before it can pass through the sheet metal hole, resulting in many steps and low efficiency. Even so, it is impossible to completely avoid the occurrence of undesirable conditions such as scratches and damages on the wire harness, and the assembly quality cannot be guaranteed. Utility Model Content

[0003] The main purpose of the utility model is to provide a perforation jig for protecting automobile wiring harnesses, aiming to solve the problems that automobile wiring harnesses are easily scratched and damaged by sheet metal during installation, thus failing to ensure assembly quality, being difficult to operate and having low efficiency.

[0004] In order to achieve the above-mentioned purpose, the utility model proposes a perforation jig for protecting automobile wiring harnesses, and the perforation jig for protecting automobile wiring harnesses comprises:

[0005] A first housing, the first housing comprising a first boss and a second boss, the second boss being arranged around the outer periphery of the first boss;

[0006] A second housing, the second housing comprising a third boss and a fourth boss, the fourth boss being arranged around the outer periphery of the third boss;

[0007] The first boss has a first opening, the third boss has a second opening, the first boss and the third boss are spliced ​​so that the first opening and the second opening are connected to form a through hole, and the through hole is used for allowing the wiring harness to pass through; the first boss and the third boss are both used to pass through the sheet metal hole; the second boss is provided with a first magnet, and the fourth boss is provided with a second magnet, and the first magnet and the second magnet are used to adsorb the sheet metal so that the second boss and the fourth boss are both in contact with the sheet metal.

[0008] In one embodiment, the first shell further includes a first shell body, and the first boss and the second boss are both connected to the first shell body; the second shell further includes a second shell body, and the third boss and the fourth boss are both connected to the second shell body; the first shell body and the second shell body are detachably connected.

[0009] In one embodiment, the first shell body and the second shell body each include a first end and a second end that are oppositely disposed, the two first ends are hinged, and the two second ends are detachably connected.

[0010] In one embodiment, the protective automobile wiring harness perforation jig also includes a magnet assembly, the magnet assembly includes a third magnet and a fourth magnet, the third magnet is arranged at the second end of the first shell body, the fourth magnet is arranged at the second end of the second shell body, and the third magnet and the fourth magnet are adsorbed to make the two second ends detachably connected.

[0011] In one embodiment, the first boss and the second boss are spaced apart on the first shell body, and a first groove is formed between the first boss and the second boss; the third boss and the fourth boss are spaced apart on the second shell body, and a second groove is formed between the third boss and the fourth boss; the first groove and the second groove are spliced ​​to form an annular groove, and the annular groove is used to accommodate the flanging of the sheet metal hole so that the second boss and the fourth boss are both in contact with the sheet metal.

[0012] In one embodiment, the first shell includes a first abutment portion, and the second shell includes a second abutment portion, the first abutment portion is located on the outside of the second boss and on the top of the first shell body, the second abutment portion is located on the outside of the fourth boss and on the top of the second shell body, the surfaces of the first abutment portion and the second abutment portion are both planes, and the first abutment portion and the second abutment portion are used to abut against a sound-absorbing pad on a sheet metal so that the second boss and the fourth boss both abut against the sheet metal.

[0013] In one embodiment, the first shell body has a first arc surface, the second shell body has a second arc surface, and the first shell body and the second shell body are spliced ​​so that the first arc surface and the second arc surface form a guide hole connected to the through hole, and the guide hole is gradually expanded in a direction away from the first boss.

[0014] In one embodiment, the guide hole and the through hole have a smooth transition.

[0015] In one embodiment, the protective automobile wiring harness perforation jig also includes a hinge, and the hinge includes a hinge shaft, a first fixed hinge grid and a second fixed hinge grid, the first fixed hinge grid and the second fixed hinge grid are respectively hinged to the hinge shaft, the first fixed hinge grid is connected to the outer wall of the first end of the first shell body, and the second fixed hinge grid is connected to the outer wall of the first end of the second shell body.

[0016] In one embodiment, there are a plurality of first magnets, and the plurality of first magnets are disposed at intervals on the second boss; there are a plurality of second magnets, and the plurality of second magnets are disposed at intervals on the fourth boss.

[0017] In an embodiment of the utility model, the first boss and the third boss are both used to pass through the sheet metal hole, and the first boss and the third boss can be spliced ​​to connect the first opening and the second opening to form a through hole, and the through hole is used for the wiring harness to pass through. When the wiring harness is performing the perforation assembly operation, it can pass through the sheet metal hole through the through hole to avoid direct contact with the sheet metal to cause interference, thereby reducing the risk of the wiring harness being scratched or damaged by the sheet metal, and ensuring the assembly quality; the second boss is arranged around the outer periphery of the first boss, and the fourth boss is arranged around the outer periphery of the third boss, and a first magnet is arranged on the second boss, and a second magnet is arranged on the fourth boss. After the through hole formed by splicing the first boss and the third boss passes through the sheet metal hole, the magnetic force of the first magnet and the second magnet is used to enable the protective automobile wiring harness perforation jig to be quickly adsorbed on the sheet metal and not easy to fall off. After the perforation assembly operation is completed, the protective automobile wiring harness perforation jig can be directly removed, which is convenient and quick to operate, reducing the problems of difficult operation, many steps and low efficiency of the automobile wiring harness during the perforation assembly operation. In the embodiment of the utility model, a through hole is formed by splicing the first boss and the third boss, so that the wiring harness can pass through the sheet metal hole through the through hole during the perforation assembly operation to avoid direct contact with the sheet metal and cause interference, thereby reducing the risk of the wiring harness being scratched or damaged by the sheet metal, and ensuring the assembly quality; by providing the first magnet and the second magnet, the magnetic force is used to enable the protective automobile wiring harness perforation jig and the sheet metal to be quickly adsorbed and not easy to fall off, the operation is convenient and quick, and the problems of difficult operation, many steps and low efficiency during the perforation assembly operation of the automobile wiring harness are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model 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 of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1It is a structural schematic diagram of the two second ends of an embodiment of the utility model for protecting the automobile wiring harness perforation jig spliced ​​together;

[0020] Figure 2 This is a schematic structural diagram of the two second ends of an embodiment of the utility model for protecting the automobile wiring harness perforation jig being separated;

[0021] Figure 3 It is a front view of an embodiment of the utility model for protecting the automobile wiring harness perforation fixture.

[0022] Description of Figure Numbers:

[0023] Label name Label name 100 Protect automobile wiring harness perforation fixture 21 The third boss 1 First shell 211 Second opening 11 First boss 22 Fourth boss 111 First opening 221 Second magnet 12 Second boss 23 Second shell body 121 First Magnet 231 The second curved surface 13 First shell body 24 Second groove 131 First End 25 Second contact portion 132 Second end 3 Magnet assembly 133 The first arc 31 The third magnet 14 Through Hole 32 The fourth magnet 15 First groove 4 hinge 16 First contact portion 41 Articulated shaft 17 Guide hole 42 First fixed hinged fence 18 Annular groove 43 Second fixed hinged fence 2 Second shell

[0024] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0027] The main purpose of the utility model is to provide a perforation jig for protecting automobile wiring harnesses, aiming to solve the problems that automobile wiring harnesses are easily scratched and damaged by sheet metal during installation, thus failing to ensure assembly quality, being difficult to operate and having low efficiency.

[0028] The utility model provides a perforation jig for protecting automobile wiring harnesses.

[0029] like Figures 1 to 3As shown, in one embodiment of the utility model, a protective automobile wiring harness perforation jig 100 includes a first shell 1 and a second shell 2, the first shell 1 includes a first boss 11 and a second boss 12, and the second boss 12 is arranged around the outer periphery of the first boss 11; the second shell 2 includes a third boss 21 and a fourth boss 22, and the fourth boss 22 is arranged around the outer periphery of the third boss 21; the first boss 11 has a first opening 111, and the third boss 21 has a second opening 211, the first boss 11 and the third boss 21 are spliced ​​so that the first opening 111 and the second opening 211 are connected to form a through hole 14, and the through hole 14 is used for the wiring harness to pass through; the first boss 11 and the third boss 21 are both used to pass through the sheet metal hole; the second boss 12 is provided with a first magnet 121, and the fourth boss 22 is provided with a second magnet 221, and the first magnet 121 and the second magnet 221 are used to adsorb the sheet metal so that the second boss 12 and the fourth boss 22 are both in contact with the sheet metal.

[0030] In the embodiment of the utility model, the first boss 11 and the third boss 21 are both used to pass through the sheet metal hole, and the first boss 11 and the third boss 21 can be spliced ​​to connect the first opening 111 and the second opening 211 to form a through hole 14, and the through hole 14 is used for the wiring harness to pass through. When performing the perforation assembly operation, the wiring harness can pass through the sheet metal hole through the through hole 14 to avoid direct contact with the sheet metal to cause interference, thereby reducing the risk of the wiring harness being scratched or damaged by the sheet metal, and ensuring the assembly quality; the second boss 12 is arranged around the outer periphery of the first boss 11, and the fourth boss 22 is arranged around the outer periphery of the third boss 21. A first magnet 121 is provided on the second boss 12, and a second magnet 221 is provided on the fourth boss 22. After the through hole 14 formed by splicing the first boss 11 and the third boss 21 passes through the sheet metal hole, the magnetic force of the first magnet 121 and the second magnet 221 is used to enable the protective automobile wiring harness perforation jig 100 to be quickly adsorbed on the sheet metal and not easy to fall off. After the perforation assembly operation is completed, the protective automobile wiring harness perforation jig 100 can be directly removed. The operation is convenient and quick, reducing the problems of difficult operation, many steps and low efficiency during the perforation assembly operation of the automobile wiring harness.

[0031] The technical solution of the utility model adopts the first boss 11 and the third boss 21 to splice to form a through hole 14, so that the wiring harness can pass through the sheet metal hole through the through hole 14 during the punching assembly operation to avoid direct contact with the sheet metal and cause interference, thereby reducing the risk of the wiring harness being scratched or damaged by the sheet metal and ensuring the assembly quality; by providing the first magnet 121 and the second magnet 221, the magnetic force is utilized to enable the protective automobile wiring harness perforation jig 100 to be quickly adsorbed on the sheet metal and not easy to fall off, and the operation is convenient and quick, reducing the problems of difficult operation, many steps and low efficiency during the punching assembly operation of the automobile wiring harness.

[0032] In one embodiment, the first shell 1 also includes a first shell body 13, and the first boss 11 and the second boss 12 are both connected to the first shell body 13; the second shell 2 also includes a second shell body 23, and the third boss 21 and the fourth boss 22 are both connected to the second shell body 23; the first shell body 13 and the second shell body 23 are detachably connected; by setting the first shell body 13 and the second shell body 23, the length of the protective automobile wiring harness perforation jig 100 can be increased, making the installation and disassembly operations of the protective automobile wiring harness perforation jig 100 and the sheet metal more convenient, and the first shell body 13 and the second shell body 23 are detachably connected, and after completing the perforation assembly operation, it is easier to remove the protective automobile wiring harness perforation jig 100 from the sheet metal and the wiring harness.

[0033] like Figure 2 As shown, in one embodiment, the first shell body 13 and the second shell body 23 each include a first end 131 and a second end 132 that are relatively arranged, the two first ends 131 are hinged, and the two second ends 132 are detachably connected; by setting the two first ends 131 to be hinged, the first shell body 13 and the second shell body 23 can be relatively rotated to different angles to meet the needs of installation and disassembly; the two second ends 132 are detachably connected, and after completing the perforation assembly operation, it is easier to protect the automotive wiring harness perforation jig 100 from being removed from the sheet metal and the wiring harness.

[0034] In one embodiment, the protective automobile wiring harness perforation jig 100 also includes a magnet assembly 3, the magnet assembly 3 includes a third magnet 31 and a fourth magnet 32, the third magnet 31 is arranged at the second end 132 of the first shell body 13, and the fourth magnet 32 ​​is arranged at the second end 132 of the second shell body 23, and the third magnet 31 and the fourth magnet 32 ​​are adsorbed to make the two second ends 132 detachably connected; specifically, by arranging the third magnet 31 at the second end 132 of the first shell body 13, and arranging the fourth magnet 32 ​​at the second end 132 of the second shell body 23, the magnetic force between the third magnet 31 and the fourth magnet 32 ​​can be used to automatically lock the two second ends 132 together after they are aligned and closed, and the splicing or separation of the two second ends 132 can be completed with one hand, which is convenient and quick to operate, and further reduces the problems of difficult operation, many steps and low efficiency during the perforation assembly operation of the automobile wiring harness, thereby greatly improving the operation efficiency.

[0035] According to an embodiment of the present invention, buckles and slots may be respectively provided at the two second ends 132 , and the two second ends 132 may be spliced ​​or separated by engaging the buckles and slots.

[0036] In one embodiment, the first boss 11 and the second boss 12 are spaced apart on the first shell body 13, and a first groove 15 is formed between the first boss 11 and the second boss 12, the third boss 21 and the fourth boss 22 are spaced apart on the second shell body 23, and a second groove 24 is formed between the third boss 21 and the fourth boss 22, the first groove 15 and the second groove 24 are spliced ​​to form an annular groove 18, and the annular groove 18 is used to accommodate the flanging of the sheet metal hole so that the second boss 12 and the fourth boss 22 are both in contact with the sheet metal; specifically, flanging is easily generated when the sheet metal hole is formed, and the wiring harness is easily scratched and damaged by the flanging when passing through the sheet metal hole. By providing a protective automobile wiring harness perforation jig 100 so that the first boss 11 and the third boss 21 can pass through the sheet metal hole, the wiring harness can pass through the sheet metal hole through the through hole 14 during the perforation assembly operation to avoid Avoid direct contact with the sheet metal to cause interference, thereby reducing the risk of the wiring harness being scratched or damaged by the flange of the sheet metal hole, and ensuring the assembly quality; and by setting the first groove 15 and the second groove 24, the two second ends 132 of the first shell body 13 and the second shell body 23 can be spliced ​​together to form an annular groove 18 when the first groove 15 and the second groove 24 are spliced. The annular groove 18 is used to accommodate the flange of the sheet metal hole to avoid interference between the protective automobile wiring harness perforation jig 100 and the flange of the sheet metal hole, which not only extends the service life of the protective automobile wiring harness perforation jig 100, but also enables the second boss 12 and the fourth boss 22 to fit with the sheet metal, ensuring the stability of the adsorption of the first magnet 121 and the second magnet 221 on the sheet metal, so that the protective automobile wiring harness perforation jig 100 and the installation structure of the sheet metal during the perforation assembly operation are more stable.

[0037] In one embodiment, the first shell 1 includes a first abutting portion 16, and the second shell 2 includes a second abutting portion 25. The first abutting portion 16 is located on the outside of the second boss 12 and the top of the first shell body 13, and the second abutting portion 25 is located on the outside of the fourth boss 22 and the top of the second shell body 23. The surfaces of the first abutting portion 16 and the second abutting portion 25 are both planes. The first abutting portion 16 and the second abutting portion 25 are used to abut against the sound-absorbing pad on the sheet metal so that the second boss 12 and the fourth boss 22 are both abutted against the sheet metal. Specifically, since a sound-absorbing pad is provided on the sheet metal, in order to avoid interference between the protective automobile wiring harness perforation jig 100 and the sound-absorbing pad during adsorption of the sheet metal, a first abutment portion 16 and a second abutment portion 25 are provided to abut against the sound-absorbing pad on the sheet metal so that both the second boss 12 and the fourth boss 22 can fit with the sheet metal, thereby ensuring the stability of adsorption of the first magnet 121 and the second magnet 221 with the sheet metal, thereby making the installation structure of the protective automobile wiring harness perforation jig 100 and the sheet metal more stable during the perforation assembly operation.

[0038] like Figure 3As shown, in one embodiment, the first shell body 13 has a first arc surface 133, and the second shell body 23 has a second arc surface 231. The first shell body 13 and the second shell body 23 are spliced ​​so that the first arc surface 133 and the second arc surface 231 surround a guide hole 17 connected to the through hole 14, and the guide hole 17 is gradually expanded in the direction away from the first boss 11; specifically, the guide hole 17 guides the insertion of the wire harness, the guide hole 17 is connected to the through hole 14 and the guide hole 17 is gradually expanded in the direction away from the first boss 11, which can save the operator's time for aligning the through hole 14 to insert the wire harness. The operator only needs to quickly insert the wire harness into the guide hole 17 and then extend it into the through hole 14, which not only reduces the operating steps, but also greatly saves the operator's working time, and effectively improves work efficiency.

[0039] In one embodiment, the guide hole 17 and the through hole 14 have a smooth transition; specifically, by setting a smooth transition between the guide hole 17 and the through hole 14, the resistance of the wire harness when extending from the guide hole 17 into the through hole 14 can be reduced, so that the wire harness can be smoothly and quickly inserted into the through hole 14, and the smooth transition between the guide hole 17 and the through hole 14 also facilitates the protection of the molding of the automotive wire harness perforation jig 100.

[0040] In one embodiment, the protective automobile wiring harness perforation jig 100 also includes a hinge 4, the hinge 4 includes a hinge shaft 41, a first fixed hinge grid 42 and a second fixed hinge grid 43, the first fixed hinge grid 42 and the second fixed hinge grid 43 are respectively hinged to the hinge shaft 41, the first fixed hinge grid 42 is connected to the outer wall of the first end 131 of the first shell body 13, and the second fixed hinge grid 43 is connected to the outer wall of the first end 131 of the second shell body 23; specifically, the first end 131 of the first shell body 13 and the first end 131 of the second shell body 23 are hinged by the hinge 4, and the first fixed hinge grid 42 and the second fixed hinge grid 43 can be rotated relative to the hinge shaft 41, so that the first shell body 13 and the second shell body 23 can be rotated to different angles to meet different usage requirements.

[0041] According to an embodiment of the present invention, the first end 131 of the first shell body 13 and the second end 132 of the second shell body 23 can be hinged by a pin, so that the first shell body 13 and the second shell body 23 can rotate relative to each other to different angles to meet different usage requirements.

[0042] In one embodiment, the number of the first magnets 121 is multiple, and the multiple first magnets 121 are arranged at intervals on the second boss 12; the number of the second magnets 221 is multiple, and the multiple second magnets 221 are arranged at intervals on the fourth boss 22; specifically, the second boss 12 is provided with multiple first mounting holes at intervals, and the multiple first magnets 121 are arranged in the multiple first mounting holes in a one-to-one correspondence, and the fourth boss 22 is provided with multiple second mounting holes at intervals, and the multiple second magnets 221 are arranged in the multiple second mounting holes in a one-to-one correspondence. In order to ensure that the first magnets 121 and the second magnets 221 can be more evenly adsorbed on the sheet metal so that the second boss 12 and the fourth boss 22 can be firmly connected to the sheet metal and not easy to fall off, the multiple first magnets 121 can be evenly distributed on the second boss 12, and the multiple second magnets 221 can be evenly distributed on the fourth boss 22.

[0043] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A perforation jig for protecting automobile wiring harnesses, characterized in that: The protective automobile wiring harness perforation jig comprises: A first housing, the first housing comprising a first boss and a second boss, the second boss being arranged around the outer periphery of the first boss; A second housing, the second housing comprising a third boss and a fourth boss, the fourth boss being arranged around the outer periphery of the third boss; The first boss has a first opening, the third boss has a second opening, the first boss and the third boss are spliced ​​so that the first opening and the second opening are connected to form a through hole, and the through hole is used for allowing the wiring harness to pass through; the first boss and the third boss are both used to pass through the sheet metal hole; the second boss is provided with a first magnet, and the fourth boss is provided with a second magnet, and the first magnet and the second magnet are used to adsorb the sheet metal so that the second boss and the fourth boss are both in contact with the sheet metal.

2. The automobile wiring harness protection punching jig according to claim 1, characterized in that: The first shell also includes a first shell body, and the first boss and the second boss are both connected to the first shell body; the second shell also includes a second shell body, and the third boss and the fourth boss are both connected to the second shell body; the first shell body and the second shell body are detachably connected.

3. The automobile wiring harness protection punching jig according to claim 2, characterized in that: The first shell body and the second shell body each include a first end and a second end that are oppositely disposed, the two first ends are hinged, and the two second ends are detachably connected.

4. The automobile wiring harness protection punching jig as claimed in claim 3, characterized in that: The protective automobile wiring harness perforation jig also includes a magnet assembly, which includes a third magnet and a fourth magnet. The third magnet is arranged at the second end of the first shell body, and the fourth magnet is arranged at the second end of the second shell body. The third magnet and the fourth magnet are adsorbed to make the two second ends detachably connected.

5. The automobile wiring harness protection punching jig as claimed in claim 4, characterized in that: The first boss and the second boss are spaced apart on the first shell body, and a first groove is formed between the first boss and the second boss; the third boss and the fourth boss are spaced apart on the second shell body, and a second groove is formed between the third boss and the fourth boss; the first groove and the second groove are spliced ​​to form an annular groove, and the annular groove is used to accommodate the flanging of the sheet metal hole so that the second boss and the fourth boss are both in contact with the sheet metal.

6. The automobile wiring harness protection punching jig according to claim 4, characterized in that: The first shell includes a first abutment portion, and the second shell includes a second abutment portion, the first abutment portion is located on the outside of the second boss and on the top of the first shell body, the second abutment portion is located on the outside of the fourth boss and on the top of the second shell body, the surfaces of the first abutment portion and the second abutment portion are both planes, and the first abutment portion and the second abutment portion are used to abut against the sound-absorbing pad on the sheet metal so that the second boss and the fourth boss both abut against the sheet metal.

7. The automobile wiring harness protection punching jig according to claim 4, characterized in that: The first shell body has a first arc surface, the second shell body has a second arc surface, and the first shell body and the second shell body are spliced ​​so that the first arc surface and the second arc surface form a guide hole connected to the through hole, and the guide hole is gradually expanded in a direction away from the first boss.

8. The automobile wiring harness protection punching jig according to claim 7, characterized in that: The guide hole and the through hole have a smooth transition.

9. The protective automobile wiring harness perforation jig according to any one of claims 3 to 8, characterized in that: The protective automobile wiring harness perforation jig also includes a hinge, which includes a hinge shaft, a first fixed hinge grid and a second fixed hinge grid, the first fixed hinge grid and the second fixed hinge grid are respectively hinged to the hinge shaft, the first fixed hinge grid is connected to the outer wall of the first end of the first shell body, and the second fixed hinge grid is connected to the outer wall of the first end of the second shell body.

10. The automobile wiring harness protection punching jig according to any one of claims 1 to 8, characterized in that: There are multiple first magnets, and the multiple first magnets are arranged at intervals on the second boss; there are multiple second magnets, and the multiple second magnets are arranged at intervals on the fourth boss.

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