Welding jig

Abstract

The embodiment of the utility model discloses a welding jig which comprises a main body, the main body is provided with a first shell and a second shell which are connected together, a containing cavity used for containing objects to be welded is formed between the first shell and the second shell, and at least one of the first shell and the second shell is further provided with a welding hole communicated with the containing cavity. At least one of the first shell and the second shell is provided with a pressing piece, one end of the pressing piece is fixedly connected to the first shell and / or the second shell, the other end of the pressing piece is connected with a movable adjusting piece, and the adjusting piece can be driven to abut against the first shell and / or the second shell so that the first shell and the second shell can be close to each other. Therefore, the to-be-welded article is clamped. The first shell and the second shell can be close to each other by driving the adjusting part, so that the first shell and the second shell can clamp the to-be-welded article more tightly, and when the to-be-welded article is welded, the to-be-welded article is not prone to position deviation, and the welding yield is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to a welding jig. Background Art

[0002] When welding the battery steel shell, the battery steel shell needs to be placed in a welding jig, clamped by the welding jig, and then welded using welding tools. The welding jig is mainly used to stabilize the position of the battery steel shell so that it will not shift during welding and ensure the stability of the welding.

[0003] However, the welding jig in the related art may fail to press the product tightly, causing the product to easily shift inside the welding jig during the welding process, resulting in a low welding yield. Utility Model Content

[0004] Based on this, it is necessary to propose a welding fixture to improve the welding yield in response to the above problems.

[0005] The utility model provides a welding jig, comprising:

[0006] A main body, the main body comprising a first shell and a second shell connected together, a receiving cavity for receiving an object to be welded is formed between the first shell and the second shell, and at least one of the first shell and the second shell is further provided with a welding hole connected to the receiving cavity;

[0007] At least one of the first shell and the second shell is provided with a clamping member, one end of which is fixedly connected to the first shell and / or the second shell, and the other end of which is connected to a movable adjusting member, and the adjusting member can be driven to press the first shell and / or the second shell so that the first shell and the second shell are brought closer to each other to clamp the object to be welded located in the accommodating cavity.

[0008] In some embodiments, the pressing member includes a connecting portion and an adjusting portion, the connecting portion is connected to the first shell and / or the second shell via a fixing member, and the adjusting member is disposed on the adjusting portion.

[0009] In some embodiments, the adjusting member is an adjusting screw, the adjusting screw is threadedly connected to the adjusting portion, and one end of the adjusting screw presses against the first shell and / or the second shell.

[0010] In some embodiments, the welding holes are provided on both the first shell and the second shell, and the welding holes include a first weld and a second weld, the first weld is provided on the end surfaces opposite to each other of the first shell and the second shell, the second weld is provided on the adjacent end surfaces of the first shell and the second shell, and the second welds on the first shell and the second shell are connected.

[0011] In some embodiments, the first weld includes a first welding end and two second welding ends disposed at both ends of the first welding end, and both ends of the first welding end are respectively connected to the two second welding ends to form a welding path.

[0012] In some embodiments, the first shell and the second shell are both provided with two opposite first side walls at positions corresponding to the first weld, and a first clearance groove connected to the first weld is formed between the two first side walls. The first clearance groove extends along the welding path, and the spacing between the first side walls gradually increases from a position close to the first weld to a position far away from the first weld.

[0013] In some embodiments, the first shell and the second shell are both provided with two opposite second side walls at positions corresponding to the second weld, and a second clearance groove connected to the second weld is formed between the two second side walls. The second clearance groove extends along the welding path, and the spacing between the second side walls gradually increases from a position close to the second weld to a position far from the second weld.

[0014] In some embodiments, the first shell and the second shell are detachably connected by one or more of a snap connection, a buckle connection, and a bolt connection. A positioning pin is further provided on the first shell, and a positioning hole is further provided on the second shell at a position corresponding to the positioning pin.

[0015] In some embodiments, a through groove communicating with the accommodating cavity is penetrated through the first shell and / or the second shell, and adjustment holes communicating with the accommodating cavity are provided at corresponding positions of the first shell and the second shell.

[0016] In some embodiments, a protrusion adapted to the object to be welded is disposed in the accommodating cavity, and a limiting groove is formed between the edge of the protrusion and the first shell and the second shell.

[0017] The following beneficial effects are achieved by using the embodiments of the present invention:

[0018] According to the welding jig in the above embodiment, a first shell and a second shell are provided, and a accommodating cavity is formed between the first shell and the second shell, and the object to be welded can be placed in the accommodating cavity. By driving the adjusting member, the adjusting member can be made to abut against the first shell or the second shell. Since one end of the clamping member is fixedly connected to the first shell or the second shell, when the adjusting member is continued to be driven to press against the first shell or the second shell, the first shell and the second shell can be made to approach each other to reduce the space of the accommodating cavity, so that the first shell and the second shell can clamp the object to be welded more tightly. When welding the object to be welded, the object to be welded is less likely to be displaced, thereby greatly improving the welding yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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 these drawings without paying creative work.

[0020] in:

[0021] Figure 1 The schematic diagram of the structure of the battery steel shell is shown;

[0022] Figure 2 A cross-sectional view of a welding jig provided according to the utility model is shown;

[0023] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0024] Figure 4 A schematic structural diagram of a welding jig provided according to the utility model is shown;

[0025] Figure 5 A side view of a welding jig provided according to the utility model is shown;

[0026] Figure 6 Another cross-sectional view of the welding jig provided according to the utility model is shown.

[0027] Description of main component symbols:

[0028] 1. Main body; 11. First shell; 111. Positioning pin; 12. Second shell; 121. Positioning hole; 13. Fixing hole; 14. Through slot; 15. Welding hole; 151. First welding seam; 1511. First welding end; 1512. Second welding end; 1513. First clearance groove; 1514. First side wall; 152. Second welding seam; 1521. Second clearance groove; 1522. Second side wall; 16. Adjustment hole; 17. Accommodating cavity; 18. Protrusion; 2. Pressing member; 21. Connecting part; 211. Fixing member; 22. Adjusting part; 221. Adjusting member. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0032] The utility model provides a welding jig, which is used for fixing and clamping an object to be welded so as to perform welding operation on a position of the object to be welded where welding is required.

[0033] In one embodiment, see Figures 2 to 4 The welding jig includes a main body 1, which has a first shell 11 and a second shell 12 connected together, and a receiving cavity 17 for receiving objects to be welded is formed between the first shell 11 and the second shell 12, and at least one of the first shell 11 and the second shell 12 is also provided with a welding hole 15 connected to the receiving cavity 17.

[0034] It should be noted that the objects to be welded are at least two objects. When the objects to be welded are placed in the accommodating cavity 17 , the welding position between the two objects to be welded just corresponds to the welding hole 15 , so that the welding operation can be performed on the welding position through the welding hole 15 .

[0035] At least one of the first shell 11 and the second shell 12 is provided with a clamping piece 2, and one end of the clamping piece 2 is fixedly connected to the first shell 11 and / or the second shell 12, that is, whichever shell the clamping piece 2 is provided on, one end of the clamping piece 2 is preferentially fixedly connected to the shell on which it is provided. If both shells are provided with clamping pieces 2, the two clamping pieces 2 are connected to the corresponding shells.

[0036] The other end of the clamping member 2 is connected to a movable adjusting member 221 , and the adjusting member 221 can be driven to press the first shell 11 and / or the second shell 12 to bring the first shell 11 and the second shell 12 closer to each other to clamp the object to be welded in the accommodating cavity 17 .

[0037] By setting the first shell 11 and the second shell 12, an accommodating chamber 17 is formed between the first shell 11 and the second shell 12, and the object to be welded can be placed in the accommodating chamber 17. By driving the adjusting member 221, the adjusting member 221 can be abutted against the first shell 11 or the second shell 12. Since one end of the pressing member 2 is fixedly connected to the first shell 11 or the second shell 12, when the adjusting member 221 is continuously driven to press the first shell 11 or the second shell 12, the first shell 11 and the second shell 12 can be brought closer to each other to reduce the space of the accommodating chamber 17, so that the first shell 11 and the second shell 12 can clamp the object to be welded more tightly. When welding the object to be welded, the object to be welded is less likely to be displaced, thereby greatly improving the welding yield.

[0038] In one embodiment, see Figures 2 to 4 The pressing member 2 includes a connecting portion 21 and an adjusting portion 22 , the connecting portion 21 and the adjusting portion 22 are connected together, preferably the connecting portion 21 and the adjusting portion 22 are integrally formed, the connecting portion 21 is connected to the first shell 11 and / or the second shell 12 via a fixing member 211 , and the adjusting member 221 is disposed on the adjusting portion 22 .

[0039] It should be noted that the fixing member 211 can be a snap-fit ​​structure, a buckle structure, or a screw, that is, the connection portion 21 of the pressing member and the first shell 11 or the second shell 12 are detachably connected. In the present application, the fixing member 211 is preferably a screw, and a fixing hole 13 is provided on the first shell 11 or the second shell 12, and the fixing hole 13 is a screw hole. The fixing member 211 can be penetrated through the connection portion 21 and can be threadedly connected to the fixing hole 13, so that the end of the connection portion 21 away from the adjustment portion 22 is fixedly connected to the first shell 11 or the second shell 12 by one or more screws.

[0040] In a specific embodiment, the clamping piece 2 can be set only on the first shell 11, or only on the second shell 12, or on both the first shell 11 and the second shell 12. In the present application, the clamping piece 2 is preferably set on both the first shell 11 and the second shell 12.

[0041] The two clamping members 2 are arranged in mirror image, and the clamping member 2 on the first shell 11 is located on the end surface of the first shell 11 facing away from the second shell 12, and the clamping member 2 on the second shell 12 is located on the end surface of the second shell 12 facing away from the first shell 11. The adjusting portion 22 of the clamping member 2 is arranged close to the welding hole 15.

[0042] In this embodiment, the adjusting member 221 is preferably an adjusting screw, which is threadedly connected to the adjusting portion 22. When the adjusting screw is turned, the adjusting screw can move toward or away from the shell. Taking the clamping member 2 on the first shell 11 as an example, the adjusting screw can press the end surface of the first shell 11 facing away from the second shell 12 during the turning process. When the turning is continued, since one end of the clamping member 2 is fixedly connected to the first shell 11, the adjusting member 221 can force the corresponding side of the first shell 11 to deform toward the second shell 12, so that the first shell 11 and the second shell 12 are pressed tightly.

[0043] By setting the adjusting member 221 as a screw, it is possible to drive the clamping movement between the first shell 11 and the second shell 12, and the structure of the screw is simple, ensuring the convenience of production and assembly. And by setting the clamping member 2 on both the first shell 11 and the second shell 12, the adjusting members 221 on the two clamping members 2 can work together, so that the first shell 11 and the second shell 12 can perform relative clamping action together, ensuring the force balance of the object to be welded.

[0044] In one embodiment, see Figures 2 to 5 The welding hole 15 can be set on only one structure of the first shell 11 and the second shell 12. In the present embodiment, it is preferred that the welding hole 15 is set on both the first shell 11 and the second shell 12, so as to cope with the welding between objects having two relative welding positions.

[0045] The welding hole 15 includes a first welding seam 151 and a second welding seam 152 , and the first welding seam 151 and the second welding seam 152 need to be set according to the actual welding position of the object to be welded.

[0046] For example, this application takes the welding of the battery steel shell as an example. Please refer to Figure 1 , Figure 1What is shown is a battery steel shell structure, which includes a steel sheet A and a cover plate B, with two relatively arranged welding positions C between the steel sheet A and the cover plate B, and a welding position D located between the two welding positions C.

[0047] The first weld 151 is now arranged on the end faces of the first shell 11 and the second shell 12 that are opposite to each other. When the first shell 11 and the second shell 12 are connected, the side walls of the first shell 11 and the side walls of the second shell 12 are adjacent to each other. The second weld 152 is arranged on the adjacent side walls of the first shell 11 and the second shell 12, and the second welds 152 on the first shell 11 and the second shell 12 are connected to each other.

[0048] When the steel shell structure is disposed in the accommodating cavity 17 , the position C to be welded is opposite to the first weld 151 , and the position B to be welded is opposite to the second weld 152 .

[0049] For more details, please refer to Figure 2 The path of the welding position C forms a U-shaped structure, and the welding position C is directly opposite to the first weld 151, that is, the larger end faces of the first shell 11 and the second shell 12 are directly opposite to the end faces of the welding position C, so that the two larger faces of the first shell 11 and the second shell 12 form a cantilever beam structure. The adjusting member 221 is set at the end of the cantilever, and by twisting the adjusting member 221, the cantilever can always press the product to be welded.

[0050] In a specific embodiment, the first weld 151 includes a first welding end 1511 and two second welding ends 1512 arranged at both ends of the first welding end 1511, the two ends of the first welding end 1511 are respectively connected to the two second welding ends 1512, and the two second welding ends 1512 are arranged on the same side of the first welding end 1511, the first welding end 1511 and the second welding end 1512 are connected to form a welding path, and the extension path of the welding path is consistent with the extension path of the welding position of the object to be welded.

[0051] It should be noted that two opposite first side walls 1514 are provided at the positions of the first shell 11 and the second shell 12 corresponding to the first weld 151, and a first clearance groove 1513 connected to the first weld 151 is formed between the two first side walls 1514, and the first clearance groove 1513 extends along the welding path.

[0052] From a position close to the first weld 151 to a position far from the first weld 151, the spacing between the first side walls 1514 gradually increases, that is, the cross-section of the first clearance groove 1513 formed between the two first side walls 1514 is "V"-shaped, wherein the smaller end of the first clearance groove 1513 is connected to the first weld 151.

[0053] It should be noted that two second side walls 1522 are provided at positions of the first shell 11 and the second shell 12 corresponding to the second weld 152, and a second clearance groove 1521 connected to the second weld 152 is formed between the two second side walls 1522, and the second clearance groove 1521 extends along the welding path. From the position close to the second weld 152 to the position far from the second weld 152, the spacing between the second side walls 1522 gradually increases. The shape of the second clearance groove 1521 is similar to that of the first clearance groove 1513, and both are surrounded by two retaining wall members to form a "V"-shaped structure in cross section.

[0054] Of course, no matter whether it is the first clearance groove 1513 or the second clearance groove 1521, the shape of its cross section can not only be "V"-shaped, but also can include but not limited to "U"-shaped, semicircular, etc.

[0055] By forming a first clearance groove 1513 at the position of the first weld 151 and a second clearance groove 1521 at the position of the second weld 152, during the welding operation, the first clearance groove 1513 and the second clearance groove 1521 can expand the propagation space, so that the light generated during welding can be effectively diffused to avoid light blocking, thereby effectively improving the heat dissipation performance.

[0056] In one embodiment, the first shell 11 and the second shell 12 are detachably connected by one or more of snap connection, buckle connection and bolt connection. In this embodiment, the first shell 11 and the second shell 12 are preferably connected by screw fixing.

[0057] In addition, please combine Figure 6 In order to ensure the accurate installation of the first shell 11 and the second shell 12, a positioning pin 111 is also provided on the first shell 11, and a positioning hole 121 is also provided on the second shell 12 at a position corresponding to the positioning pin 111. During installation, the positioning pin 111 can be inserted and adapted into the positioning hole 121 to position the first shell 11 and the second shell 12, so that the positioning is more accurate when the two shells are subsequently connected.

[0058] It should be noted that a through groove 14 connected to the accommodating chamber 17 is also penetrated on the first shell 11 and / or the second shell 12. The first shell 11 and the second shell 12 both have multiple side walls, one of which is used to open the second weld 152. The through groove 14 is penetrated on the side walls of the shell except for the side walls with the second weld 152. By setting the through groove 14 for the connecting rod with the accommodating chamber 17, it can be clearly observed whether the position of the object to be welded inside the accommodating chamber 17 is accurate.

[0059] The through slot 14 may be separately provided on any one of the first shell 11 and the second shell 12 , or the through slots 14 may be provided at corresponding positions of the first shell 11 and the second shell 12 , and the through slots 14 at corresponding positions need to be connected.

[0060] In addition, adjustment holes 16 connected to the accommodating cavity 17 are provided at corresponding positions of the first shell 11 and the second shell 12. Preferably, the adjustment holes 16 are penetrated on the end surfaces opposite to each other of the first shell 11 and the second shell 12. When it is observed through the through groove 14 that the position of the object to be welded in the accommodating cavity 17 is inaccurate, the object to be welded can be directly contacted through the adjustment hole 16 to adjust its position.

[0061] In one embodiment, please combine Figure 1 When welding the steel shell of the battery, the end faces of the steel sheet A that fit the first shell 11 and the second shell 12 are often provided with a groove structure E. At this time, it is necessary to provide a protrusion 18 on the inner walls of the first shell 11 and the second shell 12. The protrusion 18 corresponds to the groove structure E of the steel sheet A. When the steel shell is located in the accommodating cavity 17, the protrusion 18 can be inserted and adapted to the groove structure E of the steel sheet A. This arrangement can improve the positioning effect and make the position of the object to be welded in the accommodating cavity 17 more stable.

[0062] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent application. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A welding jig, characterized in that: include: A main body (1), the main body (1) comprising a first shell (11) and a second shell (12) connected together, a receiving cavity (17) for receiving an object to be welded is formed between the first shell (11) and the second shell (12), and at least one of the first shell (11) and the second shell (12) is further provided with a welding hole (15) connected to the receiving cavity (17); At least one of the first shell (11) and the second shell (12) is provided with a clamping member (2), one end of the clamping member (2) is fixedly connected to the first shell (11) and / or the second shell (12), and the other end of the clamping member (2) is connected to a movable adjusting member (221), and the adjusting member (221) is driven to press against the first shell (11) and / or the second shell (12), so that the first shell (11) and the second shell (12) are brought closer to each other, so as to clamp the object to be welded located in the accommodating cavity (17).

2. The welding jig according to claim 1, characterized in that: The pressing member (2) comprises a connecting portion (21) and an adjusting portion (22); the connecting portion (21) is connected to the first shell (11) and / or the second shell (12) via a fixing member (211); and the adjusting member (221) is arranged on the adjusting portion (22).

3. The welding jig according to claim 2, characterized in that: The adjusting member (221) is an adjusting screw, which is threadably connected to the adjusting portion (22), and one end of the adjusting screw presses against the first shell (11) and / or the second shell (12).

4. The welding jig according to claim 1, characterized in that: The welding hole (15) is provided on both the first shell (11) and the second shell (12), and the welding hole (15) comprises a first weld (151) and a second weld (152), the first weld (151) being provided on the end surfaces of the first shell (11) and the second shell (12) facing away from each other, the second weld (152) being provided on the end surfaces of the first shell (11) and the second shell (12) being adjacent to each other, and the second weld (152) on the first shell (11) and the second shell (12) being provided in a communicating manner.

5. The welding jig according to claim 4, characterized in that: The first welding seam (151) comprises a first welding end (1511) and two second welding ends (1512) arranged at both ends of the first welding end (1511); the two ends of the first welding end (1511) are respectively connected to the two second welding ends (1512) to form a welding path.

6. The welding jig according to claim 5, characterized in that: The first shell (11) and the second shell (12) are both provided with two opposite first side walls (1514) at positions corresponding to the first weld (151), and a first clearance groove (1513) connected to the first weld (151) is formed between the two first side walls (1514), and the first clearance groove (1513) extends along the welding path, and the distance between the first side walls (1514) gradually increases from a position close to the first weld (151) to a position far from the first weld (151).

7. The welding jig according to claim 5, characterized in that: The first shell (11) and the second shell (12) are both provided with two opposite second side walls (1522) at positions corresponding to the second weld (152), and a second clearance groove (1521) connected to the second weld (152) is formed between the two second side walls (1522), and the second clearance groove (1521) extends along the welding path, and the spacing between the second side walls (1522) gradually increases from a position close to the second weld (152) to a position far from the second weld (152).

8. The welding jig according to claim 1, characterized in that: The first shell (11) and the second shell (12) are detachably connected by one or more of a snap connection, a buckle connection and a bolt connection. A positioning pin (111) is also provided on the first shell (11), and a positioning hole (121) is also provided on the second shell (12) at a position corresponding to the positioning pin (111).

9. The welding jig according to claim 1, characterized in that: The first shell (11) and / or the second shell (12) is also penetrated by a through groove (14) communicating with the accommodating cavity (17), and corresponding positions of the first shell (11) and the second shell (12) are both provided with adjustment holes (16) communicating with the accommodating cavity (17).

10. The welding jig according to claim 1, characterized in that: A protrusion (18) adapted to the object to be welded is arranged in the accommodating cavity (17), and a limiting groove is formed between the edge of the protrusion (18) and the first shell (11) and the second shell (12).

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