Welding pliers and welding equipment

Abstract

The utility model discloses welding tongs and welding equipment. The welding tongs comprise a rack, a first moving arm, a first driving assembly, a second moving arm and a second driving assembly. Wherein the first driving assembly is in transmission connection with the first moving arm, the second driving assembly is in transmission connection with the second moving arm, the first moving arm and the second moving arm can move independently, the moving efficiency is improved, and then the production takt and the production efficiency are improved. The welding device is applied to the field of welding instruments.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of welding apparatus, especially welding tongs and welding equipment. BACKGROUND

[0002] The automobile comprises a base plate and a patch plate, and the patch plate is mainly applied to a scene requiring local reinforcement or realizing different performance requirements in automobile manufacturing. The base plate and the patch plate can significantly improve the structural strength and safety performance of the automobile through hot forming and tailor-welded blank hot forming technologies, while optimizing the use of materials and reducing manufacturing costs.

[0003] In the related art, the base plate and the patch plate are welded by automatic welding tongs, and the welding tongs have the problem of slow beat when in use, which drags the overall production beat and affects the production efficiency. SUMMARY

[0004] The utility model aims at at least solving one of the technical problems existing in the prior art. To this end, the utility model provides a welding tong which can improve the use speed, thereby improving the production beat and the production efficiency.

[0005] A welding equipment with the welding tong is also provided.

[0006] According to the welding tong of the first aspect of the utility model, the welding tong comprises:

[0007] A rack;

[0008] A first moving arm having a first welding head;

[0009] A first driving assembly connected to the rack and drivingly connected to the first moving arm, the first driving assembly being configured to drive the first moving arm to move in a first direction,

[0010] A second moving arm having a second welding head, the second welding head being oppositely and spacedly arranged with the first welding head in the first direction and being capable of being cooperatively welded with the first welding head;

[0011] A second driving assembly connected to the rack and drivingly connected to the second moving arm, the second driving assembly being configured to drive the second moving arm to move in the first direction.

[0012] According to the welding tong of the first aspect of the utility model, the first moving arm and the second moving arm are driven by the first driving assembly and the second driving assembly respectively, the movement of the first moving arm and the second moving arm does not interfere with each other, so that after the first welding head and the second welding head weld the object to be welded, the first moving arm and the second moving arm can simultaneously move away from the object to be welded, the object to be welded is timely taken away, the transfer rate of the object to be welded is improved, and the production beat and the production efficiency are improved.

[0013] According to some embodiments of the present utility model, the first moving arm comprises a first arm body, a first busbar plate and a second busbar plate, the first busbar plate and the second busbar plate are electrically connected to the first welding head.

[0014] According to some embodiments of the present utility model, the first busbar plate and / or the second busbar plate are embedded in the first arm body.

[0015] According to some embodiments of the present utility model, the first busbar plate and the second busbar plate are arranged on opposite sides of the first arm body.

[0016] According to some embodiments of the present utility model, the welding tongs further comprise a drag chain assembly, the drag chain assembly is connected to the rack and the first moving arm, and the drag chain assembly is used for protecting the first wire electrically connected to the first busbar plate.

[0017] And / or,

[0018] The drag chain assembly is connected to the rack and the second moving arm, and the drag chain assembly is used for protecting the second wire electrically connected to the second busbar plate.

[0019] According to some embodiments of the present utility model, the first moving arm has a first end face at one end away from the first welding head, the rack has a first mounting face opposite and spaced from the first end face, the drag chain assembly comprises a first connecting portion, a first adaptive deformation portion and a second connecting portion connected in sequence, the first connecting portion is arranged at the first end face, the second connecting portion is arranged at the first mounting face, and the first adaptive deformation portion is used for adaptive deformation between the first connecting portion and the second connecting portion and maintaining the deformed shape.

[0020] According to some embodiments of the present utility model, the first moving arm comprises a first arm body, and the first welding head is detachably connected to the first arm body.

[0021] According to some embodiments of the present utility model, the welding tongs further comprise a guide assembly arranged along the first direction, and the guide assembly is used for guiding the first moving arm and / or the second moving arm to move along the first direction.

[0022] According to some embodiments of the present utility model, the first driving assembly comprises a first servo driving source, and the first servo driving source is drivingly connected to the first moving arm to drive the first moving arm to move along the first direction and adjust the moving speed of the first moving arm.

[0023] According to some embodiments of the present invention, the first driving assembly further includes a first screw connected to the first servo drive source and a first sliding sleeve helically sleeved on the first screw. The axial direction of the first screw is arranged along the first direction, and the first sliding sleeve is connected to the first moving arm. The first sliding sleeve can move along the axial direction of the first screw under the drive of the first servo drive source, and drive the first moving arm to move along the first direction.

[0024] According to some embodiments of the present invention, the first movable arm includes a first arm body and a first limiting part connected to the first arm body, and the second movable arm includes a second arm body and a second limiting part connected to the second arm body, wherein the second limiting part is in a limiting cooperation with the first limiting part;

[0025] The first movable arm is configured such that when the first limiting part and the second limiting part are in limiting cooperation, the distance between the first welding head and the second welding head is a preset distance.

[0026] The welding apparatus according to a second aspect of the present invention includes: the welding clamp described in the first aspect embodiment.

[0027] The welding equipment according to the second aspect of the present invention has at least the following beneficial effects: using the welding clamp of the first aspect embodiment can improve the overall production cycle and production efficiency.

[0028] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0030] Figure 1 This is a schematic diagram of the welding clamp according to one embodiment of the present invention;

[0031] Figure 2 for Figure 1 A magnified view of part A in the middle;

[0032] Figure 3 This is a schematic diagram of the structure of the welding clamp frame after removing the frame plate according to an embodiment of the present invention.

[0033] Figure 4 This is an exploded structural diagram of the first moving arm in a welding clamp according to an embodiment of the present invention;

[0034] Icon labels:

[0035] 100 racks;

[0036] First movable arm 200; first welding head 210; first arm body 220; first main arm section 221; first bending section 222; first busbar 230; second busbar 240; first movable platform 250; first limiting section 260;

[0037] First drive assembly 300; first servo drive source 310; first screw 320; first sliding sleeve 330;

[0038] Second movable arm 400; second welding head 410; second limiting part 420;

[0039] Second drive component 500;

[0040] Cable chain assembly 600;

[0041] Guide component 700. Detailed Implementation

[0042] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0043] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] In the description of this utility model, "several" refers to one or more, and "multiple" refers to two or more. The use of "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the number of indicated technical features, or the sequential relationship between indicated technical features.

[0045] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0046] In related technologies, a welding clamp includes a movable arm and a fixed arm. The movable arm can move away from or towards the fixed arm along a first direction, and the movable arm and fixed arm are spaced apart. Specifically, before welding, the welding clamp is spaced apart from the substrate and patch plate. The welding clamp moves towards the substrate and patch plate via a mobile device, aligning the space between the movable arm and fixed arm with the substrate and patch plate. The fixed arm is positioned below the substrate, and the movable arm is positioned above the substrate. When the welding clamp moves to a preset welding position, the welding clamp moves upward as a whole, putting the fixed arm in a welding state. Then, the movable arm moves downward, also putting the movable arm in a welding state. The fixed arm and movable arm together clamp the substrate and patch plate and perform welding. After welding, the movable arm first moves away from the substrate, then the welding clamp moves as a whole, putting the fixed arm away from the substrate. The welding clamp then moves as a whole outside the substrate and patch plate to continue moving the substrate and patch plate, avoiding interference between the welding clamp and the substrate.

[0047] Reference Figure 1 As shown, a first aspect embodiment of this utility model provides a welding clamp, comprising: a frame 100, a first moving arm 200, a first drive assembly 300, a second moving arm 400, and a second drive assembly 500. The first drive assembly 300 is driveably connected to the first moving arm 200, and the second drive assembly 500 is driveably connected to the second moving arm 400. The first moving arm 200 and the second moving arm 400 can move independently, improving movement efficiency and thus increasing production cycle time and production efficiency.

[0048] In this embodiment, the frame 100 serves as a support for the remaining structures. The frame 100 is box-shaped and contains a mounting chamber. The first drive assembly 300 and the second drive assembly 500 are mounted within the mounting chamber and concealed by the frame 100, thus enhancing the overall aesthetics of the welding clamp. Specifically, the frame 100 includes a rectangular frame and a frame plate connected to the frame. One drive assembly 500 is connected to the frame or the frame plate. A frame plate located on the side of the frame 100 has a clearance hole to allow the first moving arm 200 and the second moving arm 400 to extend out of the frame 100 and to avoid obstructing the movement range of the first moving arm 200 and the second moving arm 400 along a first direction, allowing them to move smoothly along the first direction. Alternatively, the frame 100 can also be cylindrical or other shapes; therefore, this invention does not limit the specific shape of the frame 100.

[0049] A portion of the first movable arm 200 is located within the frame 100 for transmission connection with the first drive assembly 300. Another portion of the first movable arm 200 extends beyond the frame 100 for welding. Specifically, the end of the first movable arm 200 extending beyond the frame 100 and away from the frame 100 has a first welding head 210. The first welding head 210 extends along a first direction toward the side where the second movable arm 400 is located. The first welding head 210 may also be located at other positions on the extended portion of the first movable arm 200, for example, in the middle of the extended portion or between the middle and end of the extended portion. The first direction is vertical, perpendicular to the ground. The first welding head 210 may be oriented in the same direction as the first direction or at an angle to the first direction, i.e., the first welding head 210 may be inclined toward the second movable arm 400. The first direction may also be other directions at an angle to the ground.

[0050] The first drive assembly 300 is connected to the frame 100, located inside the mounting chamber, and is drively connected to the first moving arm 200 inside the mounting chamber. The first drive assembly 300 is used to drive the first moving arm 200 to move along a first direction.

[0051] A portion of the second movable arm 400 is located within the frame 100 and is driveably connected to the second drive assembly 500. Another portion of the second movable arm 400 extends beyond the frame 100 for welding. The end of the second movable arm 400 extending beyond the frame 100 and away from the frame 100 has a second welding head 410. The second welding head 410 extends along a first direction toward the side where the first movable arm 200 is located. The second welding head 410 may also be located at other positions on the extended portion of the second movable arm 400, for example, in the middle of the extended portion or between the middle and end of the extended portion. The first direction is vertical, perpendicular to the ground. The second welding head 410 may be oriented in the same direction as the first direction or at an angle to the first direction, i.e., the second welding head 410 may be inclined toward the first movable arm 200. The first direction may also be other directions at an angle to the ground.

[0052] The second welding head 410 is positioned opposite and spaced apart from the first welding head 210 along a first direction. The axes of the first welding head 210 and the second welding head 410 are on the same straight line, or their axes are at an angle. The second welding head 410 can cooperate with the first welding head 210 to weld at least two objects together. For example, the first welding head 210 contacts the top surface of the patch plate, and the second welding head 410 contacts the bottom surface of the substrate. A large current is passed through the first welding head 210, the patch plate, the substrate, and the second welding head 410 in sequence. The current direction can also be along the direction from the second welding head 410 to the first welding head 210. The resistance between the substrate and the patch plate is high, and a large amount of heat is generated when the current passes through, causing the substrate and the patch plate to be thermally fused together at the contact point. In this embodiment, both the first welding head 210 and the second welding head 410 are cylindrical.

[0053] The second drive assembly 500 is connected to the frame 100, located inside the mounting chamber, and is connected to the second movable arm 400 within the mounting chamber. The second drive assembly 500 is used to drive the second movable arm 400 to move along the first direction.

[0054] It is worth understanding that the first moving arm 200 and the second moving arm 400 are driven by the first driving component 300 and the second driving component 500 respectively. The movement of the first moving arm 200 and the second moving arm 400 does not interfere with each other, so that after the first welding head 210 and the second welding head 410 weld the object to be welded, the first moving arm 200 and the second moving arm 400 can move away from the object to be welded at the same time, so as to remove the object to be welded in time, improve the transfer rate of the object to be welded, and thus improve the production cycle and production efficiency.

[0055] In addition, the first moving arm 200 and / or the second moving arm 400 are equipped with strain sensors. When the first welding head 210 or the second welding head 410 contacts the substrate, the strain sensors detect stress changes and then determine whether the first moving arm 200 and the second moving arm 400 are in place with the substrate and the patch plate.

[0056] Reference Figure 1 As shown, in some specific embodiments of this utility model, the first moving arm 200 includes a first arm body 220, a first busbar 230 and a second busbar 240 both disposed on the first arm body 220, and the first busbar 230 and the second busbar 240 are electrically connected together to the first welding head 210.

[0057] It is understandable that the first busbar 230 and the second busbar 240 can withstand large currents for welding by the first welding head 210. The first moving arm 200 shunts the current through the first busbar 230 and the second busbar 240, dividing the current into two parts. These two parts of the current generate heat at the locations of the first busbar 230 and the second busbar 240, allowing the first busbar 230 and the second busbar 240 to dissipate heat simultaneously at different locations, thus improving the heat dissipation effect. Furthermore, the first moving arm 200 also supports the first busbar 230 and the second busbar 240, improving the overall structural strength of the first moving arm 200.

[0058] The second movable arm 400 includes a second arm body, a third busbar and a fourth busbar, both disposed on the second arm body, and the third busbar and the fourth busbar are electrically connected together to the second welding head 410.

[0059] In this embodiment, the first arm body 220 includes a first main arm portion 221 and a first bending portion 222. The first main arm portion 221 extends out of the mounting chamber along a second direction perpendicular to the first direction. The first bending portion 222 is located at one end of the extended first main arm portion 221 and is bent to face the side of the second arm body along the first direction. The first bending portion 222 is connected to the first welding head 210, so that the first welding head 210 is positioned along the first direction. The first bending portion 222 is detachably connected to the first main arm portion 221 to facilitate replacement and maintenance. The first arm body 220 is made of steel, and the first busbar 230 and the second busbar 240 are both copper busbars. The structure of the second arm body is the same as that of the first arm body 220, and will not be described again here.

[0060] Reference Figure 1 As shown, in some specific embodiments of this utility model, the first busbar 230 and / or the second busbar 240 are embedded in the first arm body 220.

[0061] It is worth understanding that the first busbar 230 and the second busbar 240 are embedded in the first arm 220, and the first arm 220 provides better support for the first busbar 230 and the second busbar 240, which can improve the overall structural strength.

[0062] In this embodiment, the surface of the first arm 220 is provided with a first groove and a second groove. The first busbar 230 is embedded in the first groove and fixed with bolts, for example, multiple bolts are used to fix both ends of the first busbar 230 respectively. The first busbar 230 is rectangular and flat. The side of the first busbar 230 includes two large opposing surfaces and two small opposing surfaces. One large surface is flush with the bottom of the first groove, and the other large surface is exposed on the surface of the first arm 220 to increase the contact area with air and thus improve the heat dissipation effect. The two small surfaces correspond to the two opposite sidewalls of the first groove. The second busbar 240 is embedded in the second groove and fixed with bolts. The fixing method of the second busbar 240 is basically the same as that of the first busbar 230, but it can also be different. For example, the middle part of the second busbar 240 is fixed with bolts. The first groove partially covers the first busbar 230 to effectively support the first busbar 230, and the second groove partially covers the first busbar 230 to effectively support the second busbar 240, thereby improving the overall structural strength.

[0063] Reference Figure 1 As shown, in some specific embodiments of this utility model, the first busbar 230 and the second busbar 240 are disposed on opposite sides of the first arm 220.

[0064] It is worth noting that the first busbar 230 and the second busbar 240 can maintain an effective distance, so that the heat generated by the first busbar 230 and the heat generated by the second busbar 240 are less likely to interfere with each other, thus improving heat dissipation efficiency.

[0065] In this embodiment, a first groove and a second groove are respectively provided on the two opposite surfaces of the first arm body 220, and the first arm body 220 will form a structure similar to an "I" steel. The structural strength of the first arm body 220 itself is increased, and it can withstand greater pressure.

[0066] Reference Figure 1 As shown, in some specific embodiments of this utility model, the welding clamp further includes: a cable chain assembly 600, which connects the frame 100 and the first moving arm 200, and is used to protect the first wire electrically connected to the first busbar 230; and / or, the cable chain assembly 600 connects the frame 100 and the second moving arm 400, and is used to protect the second wire electrically connected to the second busbar 240.

[0067] In this embodiment, the first and second wires are electrically connected to other electrical components. When the first welding head 210 and the second welding head 410 clamp the substrate and the patch plate, they form a closed loop, allowing a large current to pass through the substrate and the patch plate to achieve welding. The first moving arm 200 and the second moving arm 400 can move along a first direction. To protect the first and second wires, a drag chain assembly 600 is provided. The drag chain assembly 600 is sleeved around the first and second wires to protect their outer peripheries. As the first moving arm 200 moves, it drives and guides the first wire to bend, and as the second moving arm 400 moves, it drives and guides the second wire to bend.

[0068] Reference Figure 1 As shown, in some specific embodiments of this utility model, the end of the first moving arm 200 away from the first welding head 210 has a first end face, the frame 100 has a first mounting surface opposite to and spaced from the first end face, and the cable chain assembly 600 includes a first connecting part, a first adaptive deformation part, and a second connecting part connected in sequence. The first connecting part is disposed on the first end face, the second connecting part is disposed on the first mounting surface, and the first adaptive deformation part is used to adaptively deform between the first connecting part and the second connecting part and maintain the deformed shape.

[0069] In this embodiment, the frame 100 is equipped with a first mounting plate, and the end face of the first moving arm 200 is provided with a first connecting plate. The first mounting plate and the first connecting plate are opposite to each other and spaced apart. During the movement of the first moving arm 200, the first mounting plate remains fixed, while the first connecting plate moves together with the first moving arm 200. The first adaptive deformation part of the cable chain assembly 600 undergoes adaptive deformation between the first mounting plate and the first moving arm 200 to adapt to the movement of the first moving arm 200. The first adaptive deformation part is arc-shaped to have an adaptation margin. When the first connecting plate moves away from the first mounting plate, the first adaptive deformation part can absorb the increased distance between the first connecting plate and the first mounting plate through the adaptation margin.

[0070] The frame 100 is also equipped with a second mounting plate, and the end face of the second moving arm 400 is provided with a second connecting plate. The second connecting plate is opposite to and spaced apart from the second mounting plate. The second mounting plate has a corresponding second mounting surface, and the second connecting plate has a corresponding second end face. The cable chain assembly 600 is disposed between the second mounting surface and the second end face. The cable chain assembly 600 includes a third connecting part, a second adaptable deformation part, and a fourth connecting part. The third connecting part is connected to the second mounting surface, and the fourth connecting part is connected to the second end face.

[0071] Reference Figure 1 As shown, in some specific embodiments of this utility model, the first movable arm 200 includes a first arm body 220, and the first welding head 210 is detachably connected to the first arm body 220.

[0072] It is understandable that the first welding head 210 is a consumable part and needs to be replaced regularly. The first welding head 210 is detachably connected to the first arm body 220, making the replacement of the first welding head 210 more convenient.

[0073] In this embodiment, the first welding head 210 is snapped together with the first arm body 220. The first arm body 220 has a first snap-fit ​​post for snapping the first welding head 210. The first welding head 210 is cylindrical, and the end of the first welding head 210 away from the second moving arm 400 has a first snap-fit ​​groove, which can snap into the first snap-fit ​​post. Alternatively, the first welding head 210 has the first snap-fit ​​post, and the first arm body 220 has the first snap-fit ​​groove. As another embodiment, the first welding head 210 can also be threadedly connected to the first arm body 220.

[0074] Furthermore, the second welding head 410 is detachably connected to the second arm body, making its replacement more convenient. The second welding head 410 can be directly snapped onto the second arm body or threaded onto it.

[0075] Reference Figure 1 As shown, in some specific embodiments of this utility model, the welding clamp further includes a guide component 700 disposed along a first direction, the guide component 700 being used to guide the first moving arm 200 and / or the second moving arm 400 to move along the first direction.

[0076] It is worth understanding that the guide assembly 700 guides the movement of the first moving arm 200 and the second moving arm 400, resulting in higher accuracy and more stable movement of the first moving arm 200 and the second moving arm 400 along the first direction. In this embodiment, the guide assembly 700 is a linear guide rail, and there are two of them. The two linear guide rails are respectively located on opposite sides of the first drive assembly 300 and the second drive assembly 500, which are far apart from each other. The first moving arm 200 is connected to the two linear guide rails, and the second moving arm 400 is also connected to the two linear guide rails.

[0077] Reference Figure 1 As shown, in some specific embodiments of this utility model, the first driving component 300 includes a first servo driving source 310, which is connected to the first moving arm 200 to drive the first moving arm 200 to move along a first direction and adjust the moving speed of the first moving arm 200.

[0078] It is worth understanding that the first drive component 300 adopts a first servo drive source 310, such as a servo motor, so that the first moving arm 200 can change at any speed along the first direction, which facilitates the control of the moving speed of the first moving arm 200 and makes the movement of the first moving arm 200 more efficient. For example, when the first moving arm 200 is separated from the substrate, the initial speed of the first moving arm 200 is fast, and then the speed slows down as it gets closer to the substrate until it stops; while when the first moving arm 200 is away from the substrate, the moving speed of the first moving arm 200 can also be increased rapidly and stop after moving away from a certain distance, making the overall moving efficiency of the first moving arm 200 higher.

[0079] Reference Figure 1 As shown, in some specific embodiments of this utility model, the first drive assembly 300 further includes a first screw 320 that is connected to the first servo drive source 310 and a first sliding sleeve 330 that is helically rotatably sleeved on the first screw 320. The axial direction of the first screw 320 is arranged along a first direction. The first sliding sleeve 330 is connected to the first moving arm 200. The first sliding sleeve 330 can move along the axial direction of the first screw 320 under the drive of the first servo drive source 310, and drive the first moving arm 200 to move along the first direction.

[0080] In this embodiment, the first servo drive source 310, the first screw 320, and the first sliding sleeve 330 form a lead screw transmission structure. This lead screw transmission structure can convert the rotational motion of the servo motor into the linear motion of the first moving arm 200 along a first direction, allowing the first moving arm 200 to move smoothly along the first direction. A first moving platform 250 is provided between the first arm body 220 and the first sliding sleeve 330. One side of the first moving platform 250 is connected to the first sliding sleeve 330 and two linear guide rails, while the other opposite side of the first moving platform 250 is connected to the first arm body 220.

[0081] The second drive assembly 500 includes a second servo drive source, a second screw connected to the second servo drive source, and a second sliding sleeve that is helically rotated and sleeved on the second screw. The second arm body and the second sliding sleeve are connected through a second moving platform. One side of the second moving platform is connected to the second sliding sleeve and two linear slide rails, and the other opposite side of the second moving platform is connected to the second arm body.

[0082] Reference Figure 1As shown, in some specific embodiments of this utility model, the first movable arm 200 includes a first arm body 220 and a first limiting part 260 connected to the first arm body 220, and the second movable arm 400 includes a second arm body and a second limiting part 420 connected to the second arm body, wherein the second limiting part 420 and the first limiting part 260 are mutually limitingly engaged; wherein, the first movable arm 200 is configured such that when the first limiting part 260 and the second limiting part 420 are mutually limitingly engaged, the distance between the first welding head 210 and the second welding head 410 is a preset distance.

[0083] The preset distance is the designed interval between the first arm 220 and the second arm (excluding the length of the first welding head 210 and the second welding head 410, i.e., the distance between the first arm 220 and the second arm after the first welding head 210 and the second welding head 410 are removed). The specific interval distance can be adjusted according to design requirements.

[0084] It is understandable that the first limiting part 260 and the second limiting part 420 limit the extreme positions of the relative movement of the first arm 220 and the second arm in the first direction, so as to avoid the collision between the first arm 220 and the second arm and thus protect the equipment.

[0085] In this embodiment, the first limiting part 260 includes a first stop post and a first blocking strip, and the second limiting part 420 includes a second stop post and a photoelectric switch. The first stop post and the second stop post can be limited and abutted along a first direction, preventing the first arm 220 and the second arm from continuing to move relative to each other along the first direction. The first blocking strip cooperates with the photoelectric switch to limit movement, allowing the first blocking strip to trigger the photoelectric switch. The photoelectric switch transmits a signal to the controller, which controls the first servo drive source 310 and the second servo drive source to stop moving, preventing the first arm 220 and the second arm from continuing to move along the first direction. Alternatively, the first limiting part 260 may only have a first stop post, and the second limiting part 420 may only have a second stop post, or the first limiting part 260 may only have a first blocking strip, and the second limiting part 420 may only have a photoelectric switch.

[0086] Reference Figure 1 As shown, the welding equipment according to a second aspect embodiment of the present invention includes: a welding clamp as described in the first aspect embodiment. It is understood that using the welding clamp of the first aspect embodiment in the welding equipment can improve the overall production cycle time and production efficiency.

[0087] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A welding clamp, characterized in that, include: Rack (100); The first movable arm (200) has a first welding head (210); A first drive assembly (300) is connected to the frame (100) and driven to the first movable arm (200). The first drive assembly (300) is used to drive the first movable arm (200) to move along a first direction. The second movable arm (400) has a second welding head (410), which is opposite to and spaced apart from the first welding head (210) along the first direction and is capable of cooperating with the first welding head (210) for welding; The second drive assembly (500) is connected to the frame (100) and is drively connected to the second movable arm (400). The second drive assembly (500) is used to drive the second movable arm (400) to move along the first direction.

2. The welding clamp according to claim 1, characterized in that: The first movable arm (200) includes a first arm body (220), a first busbar (230) and a second busbar (240) both disposed on the first arm body (220), and the first busbar (230) and the second busbar (240) are electrically connected together to the first welding head (210).

3. The welding clamp according to claim 2, characterized in that: The first busbar (230) and / or the second busbar (240) are embedded in the first arm body (220).

4. The welding clamp according to claim 2, characterized in that: The first busbar (230) and the second busbar (240) are located on opposite sides of the first arm (220).

5. The welding clamp according to claim 2, characterized in that, The welding clamp also includes: a cable chain assembly (600) that connects the frame (100) and the first moving arm (200), and the cable chain assembly (600) is used to protect the first wire electrically connected to the first busbar (230); And / or, The cable chain assembly (600) connects the frame (100) and the second moving arm (400), and the cable chain assembly (600) is used to protect the second wire electrically connected to the second busbar (240).

6. The welding clamp according to claim 1, characterized in that: The first movable arm (200) includes a first arm body (220), and the first welding head (210) is detachably connected to the first arm body (220).

7. The welding clamp according to claim 1, characterized in that, The welding clamp further includes a guide assembly (700) disposed along the first direction, the guide assembly (700) being used to guide the first moving arm (200) and / or the second moving arm (400) to move along the first direction.

8. The welding clamp according to claim 1, characterized in that: The first drive assembly (300) includes a first servo drive source (310), which is connected to the first moving arm (200) to drive the first moving arm (200) to move along the first direction and adjust the moving speed of the first moving arm (200).

9. The welding clamp according to claim 1, characterized in that: The first movable arm (200) includes a first arm body (220) and a first limiting part (260) connected to the first arm body (220). The second movable arm (400) includes a second arm body and a second limiting part (420) connected to the second arm body. The second limiting part (420) is in a limiting cooperation with the first limiting part (260). The first movable arm (200) is configured such that when the first limiting part (260) and the second limiting part (420) are in limiting cooperation, the distance between the first welding head (210) and the second welding head (410) is a preset distance.

10. A welding device, characterized in that, include: The welding clamp according to any one of claims 1 to 9.

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