Welding jig

Abstract

The utility model relates to the technical field of welding, in particular to a welding jig. The welding jig comprises a base, a positioning assembly and a wire drawing assembly, a receding groove is formed in the base in the first direction, the positioning assembly is arranged on the side, facing the first direction, of the base and used for positioning a to-be-welded part, the wire drawing assembly comprises a clamping jaw structure and a wire outlet structure, and the wire outlet structure and the clamping jaw structure are used for straightening a welding wire. The clamping jaw structure is at least partially located in the receding groove or the wire outlet structure is at least partially located in the receding groove. Therefore, the receding groove can avoid the clamping jaw structure or the wire outlet structure, at least part of the projection of the clamping jaw structure or the wire outlet structure coincides with the base in the first direction, the length of the welding wire between the clamping jaw structure and the wire outlet structure can be shortened, and waste of the welding wire is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding, in particular to a welding jig. BACKGROUND

[0002] The pulse hot press (also called Hot Bar) is used for welding devices that cannot be welded by normal SMT (Surface Mount Technology) and reflow ovens, such as single-sided FPC (Flexible Printed Circuit) and extremely thin coaxial lines.

[0003] The pulse hot press includes a base, a positioning assembly, a wire pulling assembly, and a pressure welding assembly. The positioning assembly is installed above the base, and the top of the positioning assembly has a positioning groove for positioning a to-be-welded piece. The wire pulling assembly includes a clamping jaw structure and a wire feeding structure. The clamping jaw structure is used to pull the welding wire of the wire feeding structure out and across the to-be-welded piece, and then the clamping jaw structure and the wire feeding structure are lowered synchronously to make the welding wire contact the to-be-welded piece.

[0004] The clamping jaw structure and the wire feeding structure are usually located on the left and right sides of the base, so that the length of the welding wire between the clamping jaw structure and the wire feeding structure is greater than the width of the base in the left-right direction. The width of a small to-be-welded piece in the left-right direction is usually much smaller than the width of the base in the left-right direction, so that the welding wire is wasted. CONTENT OF THE INVENTION

[0005] Embodiments of the present application aim to provide a welding jig to at least improve the problem of welding wire waste.

[0006] The welding jig provided by the embodiments of the present application includes a base, a positioning assembly, and a wire pulling assembly. The base is provided with a clearance groove in a first direction. The positioning assembly is arranged on the side of the base facing the first direction, and is used to position a to-be-welded piece. The wire pulling assembly includes a clamping jaw structure and a wire feeding structure. The wire feeding structure is used to provide welding wire, and the clamping jaw structure is used to pull the welding wire of the wire feeding structure out and make the pulled welding wire located on the side of the positioning assembly facing the first direction. The wire pulling assembly is also used to move in translation relative to the base in a direction parallel to the first direction, so as to make the pulled welding wire approach and move away from the to-be-welded piece. The clamping jaw structure is located on the side of the clearance groove facing the first direction, and at least part of the clamping jaw structure is located in the clearance groove when the welding wire contacts the to-be-welded piece. Alternatively, the wire feeding structure is located on the side of the clearance groove facing the first direction, and at least part of the wire feeding structure is located in the clearance groove when the welding wire contacts the to-be-welded piece.

[0007] In some embodiments, the number of the accommodation grooves is two, and the positioning assembly is located between the two accommodation grooves. The clamping jaw structure is located on one side of one of the accommodation grooves in the first direction, and the wire outlet structure is located on one side of the other accommodation groove in the first direction. When the welding wire contacts the workpiece to be welded, the clamping jaw structure is at least partially located in one of the accommodation grooves, and the wire outlet structure is at least partially located in the other accommodation groove.

[0008] In some embodiments, the two accommodation grooves respectively extend through opposite sides of the base in directions away from each other.

[0009] In some embodiments, the side of the positioning assembly in the second direction is provided with a positioning notch, the positioning notch extends through the positioning assembly in the first direction, and the positioning notch and the base enclose a positioning groove. The second direction is perpendicular to the first direction.

[0010] In some embodiments, the base is provided with a positioning protrusion, and the positioning protrusion abuts the side of the positioning assembly in the second direction.

[0011] In some embodiments, along the second direction, the projection part of the positioning protrusion coincides with the positioning notch.

[0012] In some embodiments, the workpiece to be welded is used for welding with a wire, and the welding jig further comprises a pressing assembly, and the pressing assembly comprises a pressing rod and a wire pressing block. One end of the pressing rod is hinged to the base, and the pressing rod is used for opening and closing relative to the base. The wire pressing block is arranged on the pressing rod, and the wire pressing block holds the wire when the pressing rod is closed relative to the base.

[0013] In some embodiments, the wire pressing block is located on the side of the positioning assembly in the second direction, and the wire pressing block is spaced apart from the positioning assembly along the second direction. Along the second direction, the side of the wire pressing block away from the pressing rod is provided with a bending part for holding the wire. The second direction is perpendicular to the first direction.

[0014] In some embodiments, the pressing rod is provided with a limiting hole extending through the pressing rod in the first direction. The pressing assembly further comprises a limiting column, and the limiting column is arranged on the side of the base in the first direction. When the pressing rod is closed relative to the base, the limiting column is at least partially arranged in the limiting hole.

[0015] The pressing assembly further comprises a magnetic attraction member arranged on the side of the base in the first direction. When the pressing rod is closed relative to the base, the magnetic attraction member magnetically attracts the pressing rod.

[0016] The welding jig of the embodiments of the present application is provided with an accommodation groove in the base, and the accommodation groove is used for avoiding the clamping jaw structure or the wire outlet structure. Therefore, along the first direction, the projection of the clamping jaw structure or the wire outlet structure at least partially coincides with the base. Further, along the direction spaced apart from the clamping jaw structure and the wire outlet structure, the spacing between the clamping jaw structure and the wire outlet structure is smaller than the width of the base. The length of the welding wire between the clamping jaw structure and the wire outlet structure is shortened, and the waste of the welding wire is reduced.

[0017] The above description is only a summary of the technical solutions of the present application. In order to enable one skilled in the art to better understand the technical means of the present application and implement the same according to the contents of the description, and in order to enable the above and other purposes, characteristics and advantages of the present application to be more apparent and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0018] One or more embodiments are illustrated by way of example with reference to the accompanying drawings, which are schematic and not intended to be limiting of the embodiments, and in which like reference numerals designate similar items in the figures and wherein the drawings are not necessarily to scale as quantities of components are given by way of example only and are not limiting of scope. In the figures:

[0019] Figure 1 is a structural schematic view of the welding jig of the embodiment of the present application cooperating with the workpiece to be welded, the wire and the welding platform;

[0020] Figure 2 is a structural schematic view of the partial structure of the welding jig of the embodiment of the present application cooperating with the workpiece to be welded and the wire;

[0021] Figure 3 is a structural schematic view of the base and the positioning assembly of the embodiment of the present application.

[0022] Reference signs in the detailed description of the embodiments are listed as follows:

[0023] 100, welding jig;

[0024] 1, base; 11, accommodation groove; 12, positioning protrusion; 13, mounting protrusion;

[0025] 2, positioning assembly; 21, positioning notch;

[0026] 3, wire drawing assembly; 31, clamping jaw structure; 32, wire outlet structure; 321, guide cylinder; 33, connecting arm;

[0027] 4, pressing assembly; 41, pressing rod; 411, limiting hole; 42, wire pressing block; 421, bent portion; 43, limiting column; 44, magnetic attraction piece;

[0028] a, positioning groove;

[0029] 200, workpiece to be welded; 300, wire; 400, welding wire; 500, welding platform;

[0030] X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0031] For the convenience of understanding the present application, the present application will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely intended to explain the present application and are not intended to limit the present application. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element or one or more intervening elements can be present therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element or one or more intervening elements can be present therebetween.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application; the description and claims of this application as well as the above discussion of the related art are intended to be illustrative only and are not intended to be limiting on the application; the terminology used below is intended to be interpreted in only its most restrictive sense.

[0033] In the description of the embodiments of the present application, the orientation or positional relationship indicated by the technical terms "length", "width", "thickness", "upper", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0034] In the description of the embodiments of the present application, the use of the terms "first", "second", etc. to qualify parts is only for the convenience of distinguishing the corresponding parts, and the above terms have no special meaning unless otherwise stated, and therefore cannot be understood as a limitation on the scope of protection of the present application. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified.

[0035] Unless otherwise defined, all technical and scientific terms used in the specification are the same as commonly understood by those skilled in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments and are not intended to limit the present application. The term "and / or" used in the specification includes any and all combinations of one or more related listed items.

[0036] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0037] Please refer to Figure 1The embodiment of the present application provides a welding jig 100, which is used for fixing a to-be-welded piece 200, so as to facilitate welding of the to-be-welded piece 200. In the embodiment of the present application, the to-be-welded piece 200 can be an electrical connector, and the to-be-welded piece 200 is used for welding with a wire 300.

[0038] The welding jig 100 comprises a base 1, a positioning assembly 2 and a wire drawing assembly 3. The positioning assembly 2 is arranged on a side of the base 1 towards a first direction X, and is used for positioning the to-be-welded piece 200. The wire drawing assembly 3 is arranged on a side of the base 1 towards the first direction X, and is used for tensioning a welding wire 400, and is also used for translational movement relative to the base 1 along the first direction X, so as to move the drawn welding wire 400 close to and away from the to-be-welded piece 200. Thus, the welding wire 400 can be in contact with the to-be-welded piece 200, and the welding wire 400 can be heated by an external welding device, so as to weld the wire 300 to the to-be-welded piece 200.

[0039] In some embodiments, the positioning assembly 2 is detachably mounted on the base 1 by screws.

[0040] In some embodiments, the welding wire 400 is a tin wire.

[0041] For the convenience of description, a space rectangular coordinate system is established as shown in the drawings. Figures 1 to 3 The first direction X, the second direction Y and the third direction Z are perpendicular to each other.

[0042] For the above base 1, please refer to Figure 1 The base 1 can be in the form of a square flat plate. It can be understood that the base 1 can have a plurality of different models for different models of to-be-welded pieces 200. When welding is performed, the base 1 of the corresponding model needs to be installed on the same welding platform 500 according to the model of the to-be-welded piece 200. Therefore, the part of the base 1 connected with the welding platform 500 has the same structure for different models. For example, the length and width of the base 1 of different models are the same, but the structure above the base 1 is different. Therefore, the length and width of the base 1 are usually adapted to the welding platform 500, that is, the length and width of the base 1 are standard values.

[0043] For the above wire drawing assembly 3, please refer to Figure 1 The wire drawing assembly 3 comprises a clamping jaw structure 31 and a wire outlet structure 32. The wire outlet structure 32 is used for providing the welding wire 400, and the clamping jaw structure 31 is used for drawing the welding wire 400 of the wire outlet structure 32.

[0044] In some embodiments, the clamping jaw structure 31 is a mechanical jaw, for example, a two-finger clamping jaw, a three-finger clamping jaw, etc.

[0045] The wire feeding structure 32 includes a guide cylinder 321 for mounting the welding wire roll. One end of the welding wire 400 of the welding wire roll passes through the guide cylinder 321. The clamping structure 31 clamps the end of the welding wire 400 and moves it away from the wire feeding structure 32, thereby pulling out the welding wire 400 from the wire feeding structure 32.

[0046] The inner diameter of the guide cylinder 321 can be slightly larger than the outer diameter of the welding wire 400, for example, by 1 mm or 2 mm, so that there is a certain friction between the welding wire 400 and the guide cylinder 321, which in turn works with the gripper structure 31 to straighten the welding wire 400.

[0047] The wire drawing assembly 3 is also used to position the drawn welding wire 400 on the side of the positioning assembly 2 facing the first direction X. For example, the gripper structure 31 and the wire output structure 32 are both located on the side of the positioning assembly 2 facing the first direction X, and along the third direction Z, the gripper structure 31 and the wire output structure 32 are located on opposite sides of the positioning assembly 2, so that when the gripper structure 31 draws the welding wire 400 from the wire output structure 32, the welding wire 400 is located on the side of the positioning assembly 2 facing the first direction X. At this time, the wire drawing assembly 3 moves closer to the base 1 in a direction parallel to the first direction X, and the welding wire 400 can move to contact the workpiece 200 to be welded on the positioning assembly 2.

[0048] It should be noted that the thickness of the gripper structure 31 and the wire delivery structure 32 along the first direction X is usually much greater than the thickness of the positioning component 2 along the first direction X. Therefore, when the wire drawing component 3 moves closer to the base 1 in a direction parallel to the first direction X, the gripper structure 31 and the wire delivery structure 32 may collide with the base 1, causing the welding wire 400 to fail to contact the workpiece 200 to be welded. In related technologies, the gripper structure 31 and the wire delivery structure 32 are usually located on opposite sides of the base 1 along the third direction Z to avoid the base 1. However, this results in the length of the welding wire 400 between the gripper structure 31 and the wire delivery structure 32 being greater than the width of the base 1 along the third direction Z. Since the width of the small workpiece 200 to be welded along the third direction Z is usually much smaller than the width of the base 1 along the third direction Z, this results in a waste of the welding wire 400.

[0049] To improve the above issues, please refer to Figure 1 and Figure 2In some embodiments, the base 1 is provided with a relief groove 11 along the first direction X. When the welding wire 400 contacts the workpiece 200 to be welded, the gripper structure 31 is at least partially located within the relief groove 11. It is understood that the relief groove 11 is adapted to the gripper structure 31 to avoid obstruction of the gripper structure 31. When the welding wire 400 contacts the workpiece 200 to be welded, the gripper structure 31 is spaced from the base 1 by the relief groove 11. Therefore, when the wire drawing assembly 3 is working normally, the distance between the gripper structure 31 and the wire output structure 32 is less than the width of the base 1 along the third direction Z, shortening the length of the welding wire 400 between the gripper structure 31 and the wire output structure 32, and reducing the waste of the welding wire 400.

[0050] In some embodiments, the relief groove 11 may be provided on the side of the base 1 facing the first direction X. When the welding wire 400 contacts the workpiece 200 to be welded, the gripper structure 31 is at least partially located in the relief groove 11 so that the projection of the gripper structure 31 along the first direction X at least partially coincides with the base 1.

[0051] In other embodiments, the clearance groove 11 extends through the base 1 along the first direction X.

[0052] Along the first direction X, the cross-section of the clearance groove 11 can be rectangular or other shapes that are compatible with the gripper structure 31.

[0053] Please see Figure 1 and Figure 2 In some embodiments, the wire delivery structure 32 is located on the side of the relief groove 11 facing the first direction X. When the welding wire 400 contacts the workpiece 200 to be welded, the wire delivery structure 32 is at least partially located within the relief groove 11. By allowing the wire delivery structure 32 to pass through the relief groove 11, the length of the welding wire 400 between the gripper structure 31 and the wire delivery structure 32 is shortened, reducing the waste of the welding wire 400. The relief groove 11 is adapted to the wire delivery structure 32 to avoid it. Along the first direction X, the cross-section of the relief groove 11 can be rectangular or other shapes adapted to the wire delivery structure 32.

[0054] It is understandable that the clearance groove 11 used to avoid the gripper structure 31 and the clearance groove 11 used to avoid the wire feeding structure 32 can be the same clearance groove 11 or two separate clearance grooves 11.

[0055] In one embodiment, please refer to Figure 1 and Figure 2There are two clearance grooves 11, and the positioning component 2 is located between the two clearance grooves 11. A gripper structure 31 is located on the side of one clearance groove 11 facing the first direction X, and a wire delivery structure 32 is located on the side of the other clearance groove 11 facing the first direction X. When the welding wire 400 contacts the workpiece 200 to be welded, the gripper structure 31 is at least partially located within one clearance groove 11, and the wire delivery structure 32 is at least partially located within the other clearance groove 11, so that the projections of the gripper structure 31 and the wire delivery structure 32 along the first direction X are at least partially coincident with the base 1. That is, two clearance grooves 11 are provided on the base 1 to respectively avoid the gripper structure 31 and the wire delivery structure 32, thereby further shortening the length of the welding wire 400 between the gripper structure 31 and the wire delivery structure 32.

[0056] In some embodiments, please refer to Figure 2 Two clearance grooves 11 extend through opposite sides of the base 1 in mutually distancing directions. By extending the clearance grooves 11 through the base 1 along the third direction (Z), the amount of material used in the base 1 can be reduced, lowering material costs, and facilitating the creation or casting of the clearance grooves 11. Furthermore, in some embodiments, such as... Figure 1 As shown, the gripper structure 31 and the wire feeding structure 32 are connected to an external lifting mechanism (not shown) via a connecting arm 33. The clearance groove 11 penetrates one side of the base 1 along the third direction Z, allowing the connecting arm 33 to extend into the clearance groove 11 in a direction parallel to the third direction Z, thus improving the problem of interference between the connecting arm 33 and the base 1. Moreover, the length of the gripper structure 31 and the wire feeding structure 32 along the third direction Z can be greater than the width of the clearance groove 11 along the third direction Z. In this case, the gripper structure 31 and the wire feeding structure 32 can extend into the clearance groove 11 in a direction parallel to the third direction Z. That is, one end of the gripper structure 31 and the wire feeding structure 32 along the third direction Z is located in the clearance groove 11, and the other end protrudes from the base 1 in a direction parallel to the third direction Z.

[0057] In some other embodiments, the relief groove 11 may also extend through one or both sides of the base 1 along the second direction Y. Then the gripper structure 31 and the wire feeding structure 32 may extend into the relief groove 11 in a direction parallel to the second direction Y, that is, one side of the gripper structure 31 and the wire feeding structure 32 along the second direction Y is located in the relief groove 11, and the other side protrudes from the base 1 in a direction parallel to the second direction Y.

[0058] For the positioning component 2 mentioned above, please refer to Figure 2 and Figure 3The positioning component 2 can be in the shape of a cuboid plate. A positioning notch 21 is provided on the side of the positioning component 2 facing the second direction Y. The positioning notch 21 penetrates the positioning component 2 along the first direction X, and the positioning notch 21 and the base 1 enclose a positioning groove a. The positioning groove a is used to position the workpiece 200 to be welded. When the workpiece 200 to be welded is placed in the positioning groove a, the base 1 supports the workpiece 200, and the positioning notch 21 defines the position of the workpiece 200 on the base 1 along the second direction Y and the third direction Z, while also defining the angle of the workpiece 200 relative to the base 1, thereby achieving the positioning of the workpiece 200 to be welded, which is beneficial to improving the welding accuracy of the workpiece 200. For example, the cross-section of the positioning notch 21 along the first direction X is rectangular.

[0059] In some embodiments, the thickness of the positioning component 2 along the first direction X is equal to the thickness of the wire 300 and the workpiece 200 together along the first direction X when the wire 300 is pressed against the workpiece 200. Thus, when the welding wire 400 contacts the positioning component 2, the welding wire 400 also contacts both the workpiece 200 and the wire 300. In this way, when the gripper structure 31 and the wire delivery structure 32 move excessively close to the base 1, the positioning component 2 can control the welding wire 400 in a suitable position. Specifically, the positioning component 2 limits the minimum distance between the welding wire 400 and the base 1, improving the problem of excessive compression of the wire 300 and the workpiece 200 by the welding wire 400.

[0060] In some embodiments, please refer to Figure 2 and Figure 3 The base 1 is provided with a positioning protrusion 12, which abuts against the side of the positioning component 2 facing the second direction Y. The positioning protrusion 12 can be cuboid in shape. When installing the positioning component 2, by abutting the positioning component 2 against the positioning protrusion 12, the position of the positioning component 2 relative to the base 1 along the second direction Y can be quickly positioned. By positioning the positioning component 2 relative to the base 1 along the second direction Y, it is beneficial to reduce the deviation of the part to be welded 200 from the position of the base 1 along the second direction Y, and improve the welding accuracy of the part to be welded 200.

[0061] In some embodiments, please refer to Figure 2 and Figure 3 Along the second direction Y, the projected portion of the positioning protrusion 12 coincides with the positioning notch 21. That is, the positioning protrusion 12 partially defines the positioning groove a. When the workpiece 200 to be welded is placed in the positioning groove a, the positioning protrusion 12 and the positioning component 2 respectively abut against the opposite sides of the workpiece 200 to be welded along the second direction Y, so as to improve the problem of the workpiece 200 to be welded disengaging from the positioning notch 21 along the second direction Y during the welding process, which is beneficial to improving the stability of the welding process.

[0062] In one embodiment, there are two positioning protrusions 12, which are spaced apart along the third direction Z, and the gap between the two positioning protrusions 12 is used for the wire 300 to pass through.

[0063] In some embodiments, please refer to Figure 2 and Figure 3 The welding fixture 100 also includes a clamping assembly 4, which includes a clamping rod 41 and a clamping block 42. The clamping rod 41 can be square, and the clamping block 42 can be cuboid. One end of the clamping rod 41 is hinged to the base 1, and the clamping rod 41 is used to open and close relative to the base 1. The clamping block 42 is disposed on the clamping rod 41, and when the clamping rod 41 is closed relative to the base 1, the clamping block 42 clamps the wire 300. By clamping the wire 300 to the base 1, it is easier to weld the wire 300 to the workpiece 200, and it helps to improve the problem of wire 300 displacement during the welding process. The clamping block 42 can also clamp the wire 300 to the workpiece 200, that is, along the first direction X, the wire 300 is clamped between the clamping block 42 and the workpiece 200. However, the clamping block 42 will hinder the contact between the welding wire 400 and the workpiece 200, and will also hinder the external welding device from heating the welding wire 400.

[0064] In one embodiment, the rotation axis of the pressure rod 41 is parallel to the second direction Y.

[0065] In one embodiment, the pressure bar 41 is bolted to the chassis.

[0066] In one embodiment, the pressure bar 41 and the pressure block 42 are integrally formed, for example, by casting or by punching a metal sheet.

[0067] To improve the above-mentioned problems, please refer to some embodiments. Figure 2 and Figure 3 Along the second direction Y, both the pressure rod 41 and the wire pressing block 42 are spaced apart from the positioning component 2. The wire pressing block 42 is located on the side of the pressure rod 41 away from the second direction Y. When the pressure rod 41 is closed relative to the base 1, the distance between the wire pressing block 42 and the base 1 is less than or equal to the thickness of the wire 300 along the first direction X, so that the wire pressing block 42 can press the wire 300 tightly against the base 1. It can be understood that when the pressure rod 41 is closed relative to the base 1, the wire pressing block 42 is adjacent to the positioning groove a. Therefore, although the wire pressing block 42 is spaced apart from the workpiece 200 to be welded, the distance between the wire pressing block 42 and the workpiece 200 to be welded is relatively close. The wire 300 can be pressed tightly against the workpiece 200 to be welded by the elasticity of the wire itself, thereby improving the problem that the wire pressing block 42 hinders the contact between the welding wire 400 and the workpiece 200 to be welded and the problem that it hinders the external welding device from heating the welding wire 400.

[0068] In some embodiments, please refer to Figure 2 and Figure 3Along the second direction Y, the wire pressing block 42 has a bent portion 421 on one side of the back pressure rod 41. The bent portion 421 is used to hold the wire 300. The bent portion 421 is used to press the wire 300 onto the workpiece 200 to be welded. It can be understood that when the pressure rod 41 is closed relative to the base 1, the bent portion 421 bends towards the base 1, so that the gap between the bent portion 421 and the base 1 is minimized, that is, the wire pressing block 42 applies pressure to the wire 300 through the bent portion 421. By applying pressure to the wire 300 through the bent portion 421, the pressure of the pressure rod 41 and the wire pressing block 42 on the wire 300 can be more concentrated, improving the stability of pressing the wire 300 onto the workpiece 200 to be welded.

[0069] In one embodiment, the bent portion 421 is formed by bending one side of the pressure block 42.

[0070] In some embodiments, please refer to Figure 2 and Figure 3 The base 1 has two mounting protrusions 13 on its side facing the first direction X, with the two mounting protrusions 13 spaced apart. One end of the pressure rod 41 is hinged to one mounting protrusion 13, and the other end of the pressure rod 41 is used to abut against the other mounting protrusion 13 when closed relative to the base 1. By raising the pressure rod 41 along the first direction X through the mounting protrusions 13, a gap is formed between the pressure rod 41 and the wire pressing block 42 and the base 1 to allow the wire 300 to pass through.

[0071] In some embodiments, please refer to Figure 2 and Figure 3 The other end of the pressure rod 41 is provided with a limiting hole 411 that passes through the pressure rod 41 along the first direction X. The clamping assembly 4 also includes a limiting post 43, which is provided on the side of the base 1 facing the first direction X. When the pressure rod 41 is closed relative to the base 1, the limiting post 43 is at least partially provided in the limiting hole 411. When the pressure rod 41 is closed relative to the base 1, by having the limiting post 43 pass through the limiting hole 411, the position of the end of the pressure rod 41 with the limiting hole 411 relative to the base 1 can be limited. For example, when the rotation axis of the pressure rod 41 is parallel to the second direction Y, the position of this end of the pressure rod 41 relative to the base 1 along the second direction Y can be limited, which helps to improve the problem of wire 300 displacement caused by the shaking of the pressure rod 41 during the welding process.

[0072] In one embodiment, the limiting post 43 is disposed on the mounting protrusion 13.

[0073] In one embodiment, the limiting hole 411 is an oblong hole.

[0074] In some embodiments, the clamping assembly 4 further includes a magnetic attractor 44, which is disposed on the side of the base 1 facing the first direction X. When the pressure rod 41 is closed relative to the base 1, the magnetic attractor 44 magnetically attracts the pressure rod 41. The magnetic attractor 44 can be a neodymium iron boron magnet, a samarium cobalt magnet, an alnico magnet, a ferrite magnet, etc. The magnetic attractor 44 can be embedded in the base 1. The pressure rod 41 is made of a ferromagnetic material, that is, a material that can be magnetized under the action of an external magnetic field, such as iron, cobalt, nickel, etc., and can thus be magnetically attracted by the magnetic attractor 44. It is understood that the magnetic attractor 44 is disposed on the mounting protrusion 13. By magnetically attracting the pressure rod 41 by the magnetic attractor 44, the stability of the wire clamping block 42 pressing the wire 300 onto the workpiece 200 to be welded can be improved. In particular, along the first direction X, the magnetic attractor 44 can be flush with the mounting protrusion 13, that is, the pressure rod 41 simultaneously abuts against the magnetic attractor 44 and the mounting protrusion 13.

[0075] In one embodiment, the mounting protrusion 13 is made of ferromagnetic material and can be magnetized by the magnetic attractor 44, which helps to enhance the magnetic attraction force on the pressure rod 41.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them; under the concept of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this application as described above, which are not provided in detail for the sake of brevity; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A welding fixture, characterized in that, include: The base has a clearance groove along the first direction; A positioning component is disposed on the side of the base facing the first direction, and the positioning component is used to position the workpiece to be welded; A wire drawing assembly includes a clamping structure and a wire delivery structure. The wire delivery structure is used to provide welding wire, and the clamping structure is used to pull out the welding wire from the wire delivery structure, such that the pulled-out welding wire is located on the side of the positioning assembly facing the first direction. The wire drawing assembly is also used to translate relative to the base in a direction parallel to the first direction, so that the pulled-out welding wire moves closer to and further away from the workpiece to be welded. Wherein, the gripper structure is located on the side of the relief groove facing the first direction, and when the welding wire contacts the workpiece to be welded, the gripper structure is at least partially located within the relief groove; or, the wire exit structure is located on the side of the relief groove facing the first direction, and when the welding wire contacts the workpiece to be welded, the wire exit structure is at least partially located within the relief groove.

2. The welding fixture according to claim 1, characterized in that, The number of the clearance slots is two, and the positioning component is located between the two clearance slots; The gripper structure is located on one side of the relief groove facing the first direction, and the wire delivery structure is located on the other side of the relief groove facing the first direction. When the welding wire contacts the workpiece to be welded, the gripper structure is at least partially located in one of the relief grooves, and the wire delivery structure is at least partially located in the other relief groove.

3. The welding fixture according to claim 2, characterized in that, The two clearance grooves extend through opposite sides of the base in mutually distancing directions.

4. The welding fixture according to claim 1, characterized in that, The positioning component has a positioning notch on its side facing the second direction. The positioning notch penetrates the positioning component along the first direction, and the positioning notch and the base enclose each other to form a positioning groove. The second direction is perpendicular to the first direction.

5. The welding fixture according to claim 4, characterized in that, The base is provided with a positioning protrusion, which abuts against the side of the positioning component facing the second direction.

6. The welding fixture according to claim 5, characterized in that, Along the second direction, the projected portion of the positioning protrusion coincides with the positioning notch.

7. The welding fixture according to any one of claims 1 to 6, characterized in that, The workpiece to be welded is used for welding with wire, and the welding fixture further includes a clamping assembly, the clamping assembly comprising: A pressure rod, one end of which is hinged to the base, is used to open and close relative to the base; A wire clamping block is disposed on the clamping rod, and when the clamping rod is closed relative to the base, the wire clamping block clamps the wire.

8. The welding fixture according to claim 7, characterized in that, The pressure block is located on the side of the positioning component facing the second direction, and the pressure block and the positioning component are spaced apart along the second direction; Along the second direction, the pressure block has a bent portion on the side opposite to the pressure rod, and the bent portion is used to press the wire; The second direction is perpendicular to the first direction.

9. The welding fixture according to claim 7, characterized in that, The pressure rod is provided with a limiting hole that extends through the pressure rod along the first direction; The clamping assembly further includes a limiting post, which is disposed on the side of the base facing the first direction. When the pressure rod is closed relative to the base, the limiting post is at least partially disposed in the limiting hole.

10. The welding fixture according to claim 7, characterized in that, The clamping assembly further includes a magnetic attractor located on the side of the base facing the first direction. When the pressure rod is closed relative to the base, the magnetic attractor magnetically attracts the pressure rod.

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