A welding jig for resistance welding

Abstract

The invention discloses a welding jig for resistance welding, comprising: a bottom plate, on which a plurality of first through hole groups are arranged evenly; the first through hole group comprises a first electrode slot, a first ejector pin avoidance hole and a second electrode slot arranged in sequence; two first large magnet slots are also provided on the side of the bottom plate; a middle plate, which can be arranged in contact with the bottom plate, a first groove is provided on the middle plate, the first groove is provided with a plurality of second through hole groups, the second through hole group comprises a third electrode hole, a second ejector pin avoidance hole and a fourth electrode hole arranged in sequence; a positioning plate, which can be arranged in the first groove; a plurality of positioning holes are provided on the positioning plate; a cover plate, which can cover the positioning plate and the middle plate, a plurality of fourth grooves are provided on the cover plate, and a plurality of electrode avoidance holes are also provided on the cover plate. It ensures product quality and improves production efficiency.

Description

Technical Field

[0001] The invention relates to the field of welding jigs, in particular to a welding jig for resistance welding. Background Art

[0002] The existing resistance welding jig consists of three parts: 1. A base for holding electrode blocks and products; 2. An electrode block for welding products; and 3. A positioning iron plate for controlling product size and ensuring product quality.

[0003] The existing jigs generate large vibrations during resistance welding, and the products often fall out of the jigs, resulting in welding failures; the single base cannot be recycled, wasting electrode blocks; and the products are difficult to remove after welding, increasing working hours and defects. Summary of the invention

[0004] In order to overcome the defects in the prior art, the present invention provides a resistance welding jig, which ensures product quality and improves production efficiency.

[0005] To achieve the above-mentioned purpose, the embodiment of the present application discloses a resistance welding welding jig, comprising:

[0006] A bottom plate, wherein the bottom plate is provided with a plurality of first through hole groups, and the plurality of first through hole groups are evenly arranged; the first through hole groups include first electrode slots, first ejector pin avoidance holes and second electrode slots arranged in sequence; and two first large magnet slots are also provided on the side surface of the bottom plate;

[0007] A middle plate, the middle plate can be arranged in contact with the bottom plate, a first groove is provided on the middle plate, a plurality of second through hole groups are provided on the first groove, the second through hole group includes a third electrode hole, a second ejector pin avoidance hole and a fourth electrode hole arranged in sequence; the first groove is also provided with a plurality of second grooves and a plurality of first protrusions, the second groove is arranged on one side of the fourth electrode hole, the first protrusion is arranged on one side of the third electrode hole, the first protrusion is provided with a first small magnet hole, and a plurality of second small magnet holes are provided at the bottom of the second groove; the middle plate is also provided with a plurality of third grooves, and the third grooves are arranged on both sides of the first groove;

[0008] A positioning plate, the positioning plate can be arranged in the first groove; the positioning plate is provided with a plurality of positioning holes;

[0009] A cover plate, wherein the cover plate can be covered on the positioning plate and the middle plate, the cover plate is provided with a plurality of fourth grooves, and the cover plate is also provided with a plurality of electrode avoidance holes.

[0010] Preferably, a plurality of first auxiliary positioning holes and three first bolt avoidance holes 17 are provided on the bottom plate.

[0011] Preferably, the middle plate is further provided with a plurality of second auxiliary positioning holes and three second bolt avoidance holes.

[0012] Preferably, a third bolt avoidance hole is provided on the positioning plate.

[0013] Preferably, three fourth bolt avoidance holes are provided on the cover plate.

[0014] Preferably, the first through hole group, the second through hole group and the positioning holes are arranged correspondingly.

[0015] Preferably, the fixture further includes a product removal structure, the product removal structure includes a fixing plate, a plurality of ejector pins are provided on the fixing plate, and the ejector pins are respectively arranged corresponding to the first ejector pin avoidance hole, the second ejector pin avoidance hole and the positioning hole.

[0016] Preferably, three third auxiliary positioning holes are further provided on the fixing plate.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. Solve the problem that the product falls outside the fixture due to vibration during welding, resulting in product welding failure;

[0019] 2. Increase the service life of electrode blocks and fixtures and reduce costs;

[0020] 3. Reduce the working hours and defects of product removal jigs, ensure product quality and improve production efficiency.

[0021] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a structural schematic diagram of a resistance welding welding jig according to an embodiment of the present invention;

[0024] Figure 2 is an exploded view of a resistance welding jig according to an embodiment of the present invention;

[0025] Figure 3 yes Figure 2Exploded image from opposite perspective;

[0026] Figure 4 It is a middle plate diagram of a resistance welding welding jig in an embodiment of the present invention;

[0027] Figure 5 This is a bottom plate diagram of a resistance welding jig according to an embodiment of the present invention;

[0028] Figure 6 It is a partial structural schematic diagram of a resistance welding welding jig according to an embodiment of the present invention;

[0029] Reference numerals of the above drawings:

[0030] 1. Bottom plate; 11. First through hole group; 12. First electrode slot; 13. First ejector pin avoidance hole; 14. Second electrode slot; 15. First large magnet slot; 16. First auxiliary positioning hole; 17. First bolt avoidance hole;

[0031] 2. Middle plate; 21. First groove; 211. Third groove; 212. Second auxiliary positioning hole; 213. Second bolt avoidance hole; 22. Second through hole group; 23. Third electrode hole; 24. Second ejector avoidance hole; 25. Fourth electrode hole; 26. Second groove; 27. First bump; 28. First small magnet hole; 29. ​​Second small magnet hole;

[0032] 3. Positioning plate; 31. Positioning hole; 32. Third bolt avoidance hole;

[0033] 4. Cover plate; 41. Fourth groove; 42. Electrode avoidance hole; 43. Fourth bolt avoidance hole;

[0034] 5. Product removal structure; 51. Fixing plate; 52. Ejector pin; 53. Third auxiliary positioning hole;

[0035] 6. product; 61. first metal sheet; 62. temperature switch; 63. second metal sheet. 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] In the description of the present invention, it should be noted that the terms "upper", "lower", "bottom", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features.

[0038] In order to achieve the above object, the present invention provides a welding jig for resistance welding.

[0039] In this embodiment, please refer to Figure 1 The fixture includes a bottom plate 1, a middle plate 2, a positioning plate 3, a cover plate 4 and a product removal structure 5.

[0040] Please refer to Figure 1 and Figure 5 The bottom plate 1 is provided with a plurality of first through hole groups 11, and the plurality of first through hole groups 11 are evenly arranged; the first through hole group 11 includes a first electrode slot 12, a first ejector pin avoidance hole 13 and a second electrode slot 14 arranged in sequence; and two first large magnet slots 15 are also provided on the side of the bottom plate 1.

[0041] Furthermore, a plurality of first auxiliary positioning holes 16 and three first bolt avoidance holes 17 are provided on the bottom plate 1 .

[0042] Please refer to Figure 1 and Figure 2 The middle plate 2 can be arranged in contact with the bottom plate 1, and a first groove 21 is provided on the middle plate 2, and a plurality of second through hole groups 22 are provided on the first groove 21, and the second through hole group 22 includes a third electrode hole 23, a second ejector avoidance hole 24 and a fourth electrode hole 25 arranged in sequence; the first groove 21 is also provided with a plurality of second grooves 26 and a plurality of first protrusions 27, the second groove 26 is arranged on one side of the fourth electrode hole 25, the first protrusion 27 is arranged on one side of the third electrode hole 23, the first protrusion 27 is provided with a first small magnet hole 28, and the bottom of the second groove 26 is provided with a plurality of second small magnet holes 29; the middle plate 2 is also provided with a plurality of third grooves 211, and the third grooves 211 are arranged on both sides of the first groove 21.

[0043] Furthermore, the first through hole group 11 is arranged corresponding to the second through hole group 22 and the positioning hole 31 .

[0044] Please refer to Figure 2 , Figure 3 and Figure 4 Furthermore, the middle plate 2 is also provided with a plurality of second auxiliary positioning holes 212 and three second bolt avoidance holes 213 .

[0045] The positioning plate 3 can be disposed in the first groove 21 ; a plurality of positioning holes 31 are disposed on the positioning plate 3 .

[0046] Furthermore, a third bolt avoidance hole 32 is provided on the positioning plate 3 .

[0047] The cover plate 4 can cover the positioning plate 3 and the middle plate 2 . The cover plate 4 is provided with a plurality of fourth grooves 41 . The cover plate 4 is also provided with a plurality of electrode avoidance holes 42 .

[0048] Furthermore, three fourth bolt avoidance holes 43 are provided on the cover plate 4 .

[0049] The fixture further includes a product removal structure 5, which includes a fixing plate 51, on which a plurality of ejector pins 52 are disposed, and the ejector pins 52 are respectively disposed corresponding to the first ejector pin avoidance hole 13, the second ejector pin avoidance hole 24 and the positioning hole 31.

[0050] Furthermore, three third auxiliary positioning holes 53 are provided on the fixing plate 51 .

[0051] With the above structure, the cover plate 4 is used to protect the product 6 from falling during welding, thereby ensuring the welding quality of the product 6 and reducing welding defects.

[0052] Furthermore, four fourth grooves 41 are provided on the cover plate 4 for placing large magnets. The large magnets on the cover plate 4 are used for positioning and fixing, and the magnetic poles are opposite to those of the large magnets on the middle plate 2 .

[0053] The positioning plate 3 is used to ensure the size of the products 6 and fix the relative distance between the products 6.

[0054] The middle plate 2 is provided with four third grooves 211 , each of which is provided with a large magnet for positioning and fixing, and the magnetic poles are opposite to those of the large magnets on the cover plate 4 . The third grooves 211 are provided correspondingly to the fourth grooves 41 .

[0055] Small magnets are placed in the first small magnet hole 28 and the second small magnet hole 29 of the middle plate 2 , and the small magnets are used to fix the product 6 .

[0056] The first electrode groove 12 and the second electrode groove 14 on the bottom plate 1 are used to hold the electrode block. The bottom plate 1 controls the welding height to ensure the welding quality. The electrode block is the main component for welding the product 6. The product 6 is welded by conducting electricity in cooperation with the welding needle.

[0057] Therefore, the bottom plate 1 controls the welding height of the product 6 by controlling the placement height of the electrode block. The electrode block is customized to a uniform height, so the protruding height of the electrode block can be controlled by adjusting the depth of the first electrode groove 12 and the second electrode groove 14 on the bottom plate 1, thereby controlling the welding height.

[0058] Two first large magnet slots 15 are provided on the side of the bottom plate 1 for placing large magnets. The large magnets on the bottom plate 1 are used to assist in fixing the position of the jig on the welding equipment.

[0059] There are magnets on the welding equipment, which fix the fixture through magnetic attraction.

[0060] The first auxiliary positioning hole 16 on the bottom plate 1 is used to correspond to the second auxiliary positioning hole 212 on the middle plate 2 and the third auxiliary positioning hole 53 of the product taking-out structure 5 to determine the relative position of the middle plate 2 and the bottom plate 1 .

[0061] The product taking-out structure 5 is used to take out the product 6 in the fixture.

[0062] The ejector pin 52 on the product taking-out structure 5 is used to eject the product 6 in the fixture.

[0063] The third auxiliary positioning hole 53 on the product taking-out structure 5 is used to accurately place the bottom plate 1 on the product 6 taking-out jig when the product 6 is taken out.

[0064] The fixing nuts together with the fixing bolts fix the positioning plate 3 , the middle plate 2 and the bottom plate 1 through the fourth bolt avoidance hole 43 , the third bolt avoidance hole 32 , the second bolt avoidance hole 213 and the first bolt avoidance hole 171 .

[0065] The electrode blocks are mounted on the first electrode slot 12 and the second electrode slot 14 of the bottom plate 1 , and the large magnet is placed in the first large magnet slot 15 .

[0066] Furthermore, the middle plate 2 is placed on the bottom plate 1 jig and positioned through the second auxiliary positioning hole 212 and the first auxiliary positioning hole 16 .

[0067] Furthermore, the large magnet and the small magnet are placed in the third groove 211, the first small magnet hole 28 and the second small magnet hole 29 respectively.

[0068] For further information, please refer to Figure 6, place the product 6 on the second groove 26 and the second through hole group 22 of the middle plate 2, and fix the product 6 with a small magnet. The product 6 includes a first metal sheet 61, a temperature switch 62 and a second metal sheet 63. The temperature switch 62 is placed on the electrode block and fixed in position by the first metal sheet 61 and the second metal sheet 63 above. The first metal sheet 61 and the second metal sheet 63 are placed in the middle plate and fixed in position by the small magnet below.

[0069] Furthermore, the positioning plate 3 is placed in the first groove 21 of the middle plate 2, and the fixing bolts and nuts are installed thereon.

[0070] Furthermore, a large magnet is placed in the fourth groove 41 , and then the cover plate 4 is placed on the middle plate 2 , and fixed by the large magnet on the cover plate 4 and the large magnet on the middle plate 2 .

[0071] Then, the jig is placed in the welding jig. After welding is completed, the product removal structure 5 is placed in the jig, and the ejector pin 52 is used to take out the product 6.

[0072] The present invention uses specific embodiments to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A welding jig for resistance welding, characterized in that: include: A bottom plate, wherein the bottom plate is provided with a plurality of first through hole groups, and the plurality of first through hole groups are evenly arranged; the first through hole groups include first electrode slots, first ejector pin avoidance holes and second electrode slots arranged in sequence; and two first large magnet slots are also provided on the side surface of the bottom plate; A middle plate, the middle plate can be arranged in contact with the bottom plate, a first groove is provided on the middle plate, a plurality of second through hole groups are provided on the first groove, the second through hole group includes a third electrode hole, a second ejector pin avoidance hole and a fourth electrode hole arranged in sequence; the first groove is also provided with a plurality of second grooves and a plurality of first protrusions, the second groove is arranged on one side of the fourth electrode hole, the first protrusion is arranged on one side of the third electrode hole, the first protrusion is provided with a first small magnet hole, and a plurality of second small magnet holes are provided at the bottom of the second groove; the middle plate is also provided with a plurality of third grooves, and the third grooves are arranged on both sides of the first groove; A positioning plate, the positioning plate can be arranged in the first groove; the positioning plate is provided with a plurality of positioning holes; A cover plate, the cover plate can cover the positioning plate and the middle plate, the cover plate is provided with a plurality of fourth grooves, and the cover plate is also provided with a plurality of electrode avoidance holes; A large magnet is provided in each of the third groove and the fourth groove, the third groove is arranged corresponding to the fourth groove, and the polarity of the magnet in the third groove is opposite to the polarity of the magnet in the fourth groove; Small magnets are placed in the first small magnet hole and the second small magnet hole.

2. A resistance welding jig as claimed in claim 1, characterized in that: The bottom plate is provided with a plurality of first auxiliary positioning holes and three first bolt avoidance holes.

3. A resistance welding jig as claimed in claim 1, characterized in that: The middle plate is also provided with a plurality of second auxiliary positioning holes and three second bolt avoidance holes.

4. A resistance welding jig as claimed in claim 1, characterized in that: A third bolt avoidance hole is provided on the positioning plate.

5. A resistance welding jig as claimed in claim 1, characterized in that: The cover plate is provided with three fourth bolt avoidance holes.

6. A resistance welding jig as claimed in claim 1, characterized in that: The first through hole group, the second through hole group and the positioning hole are arranged correspondingly.

7. A resistance welding jig as claimed in claim 1, characterized in that: The fixture further includes a product removal structure, which includes a fixing plate, on which a plurality of ejector pins are disposed, and the ejector pins are respectively disposed corresponding to the first ejector pin avoidance hole, the second ejector pin avoidance hole, and the positioning hole.

8. A resistance welding jig as claimed in claim 7, characterized in that: The fixing plate is also provided with three third auxiliary positioning holes.

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