Welding device

Abstract

The utility model discloses a kind of welding devices, and welding device includes clamping mechanism and welding mechanism. Clamping mechanism includes first welding seat and second welding seat, first welding seat and second welding seat are respectively used to clamp corresponding bar, first welding seat and second welding seat can be relatively moved along the first direction parallel to the radial direction of bar, to make the axis of two bars coincide;Welding mechanism is used to energize to two bars, to weld two bars and form product. The welding device of the utility model, first welding seat and second welding seat can be relatively moved along the first direction parallel to the radial direction of bar, to make the axis of two bars coincide, thereby can realize adjusting the relative position when two bars contact, and then can reduce the size deviation of product.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, and in particular to a welding apparatus. Background Technology

[0002] In the production process, it is often necessary to weld two bars to form a product. Typically, a welding device brings the two bars into contact, and then electricity is applied to each bar to weld them together. In existing technology, the relative position of the two bars at contact during the welding process is difficult to control, leading to significant dimensional deviations in the product. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a welding device that can reduce dimensional deviations in products.

[0004] This utility model provides a welding device, which includes a clamping mechanism and a welding mechanism. The clamping mechanism includes a first welding seat and a second welding seat, which are respectively used to clamp corresponding bars. The first welding seat and the second welding seat can move relative to each other in a first direction parallel to the radial direction of the bars so that the axes of the two bars coincide. The welding mechanism is used to energize the two bars to weld them together to form a product.

[0005] The welding apparatus provided by this utility model has at least the following beneficial effects: The first and second welding sockets can move relative to each other in a first direction parallel to the radial direction of the bar stock so that the axes of the two bars stock coincide, thereby enabling adjustment of the relative position of the two bars stock when they contact each other, and thus reducing the dimensional deviation of the product.

[0006] In one embodiment of this implementation, the first solder pad and the second solder pad are rotatably connected about an axis parallel to a second direction, which is perpendicular to the first direction.

[0007] In one embodiment of this implementation, the clamping mechanism further includes a guide rail and a slider. The guide rail is connected to a second welding seat, and the slider is slidably mounted on the guide rail in a first direction. The first welding seat is mounted on the slider.

[0008] In one embodiment of this implementation, the first solder pad and the second solder pad are slidably connected along a second direction.

[0009] In one embodiment of this implementation, the clamping mechanism further includes a base, a first welding seat is slidably mounted on the base along a first direction, and a second welding seat is rotatably connected to the base about an axis parallel to a second direction.

[0010] In one embodiment of this implementation, the welding mechanism includes a first welding head and a second welding head. The first welding head is used to energize the bar stock clamped in the first welding seat, and the second welding head is used to energize the bar stock clamped in the second welding seat. The first welding head is connected to the first welding seat so that it can move with the first welding seat.

[0011] In one embodiment of this implementation, the welding device further includes a first pusher and a first drive member. The first drive member is connected to the first pusher. The first pusher is used to abut against the bar stock clamped in the first welding seat. The first drive member can drive the first pusher to move so that the first pusher pushes the bar stock clamped in the first welding seat towards the bar stock clamped in the second welding seat.

[0012] In one embodiment of this implementation, the welding apparatus further includes a pressure sensor, which is mounted on the first pusher and electrically connected to the first drive member. The pressure sensor is used to detect the clamping force between the bar stock clamped by the first welding seat and the bar stock clamped by the second welding seat. The pressure sensor can adjust the driving force of the first drive member on the first pusher.

[0013] In one embodiment of this implementation, the welding apparatus further includes a second pusher and a second drive member. The second pusher is used to abut against the bar stock clamped in the second welding seat. The second drive member can drive the second pusher to move so that the second pusher pushes the bar stock clamped in the second welding seat toward the bar stock clamped in the first welding seat, and causes one end of the bar stock clamped in the second welding seat to extend to the side of the second welding seat facing the first welding seat.

[0014] In one embodiment of this implementation, the clamping mechanism further includes a positioning sensor. The first welding seat and the second welding seat are spaced apart. The first welding seat has a clamping groove for clamping bar stock. The clamping groove extends through the first welding seat so that one end of the bar stock clamped by the first welding seat can extend from the first welding seat toward the second welding seat and be exposed in the gap between the first welding seat and the second welding seat. The positioning sensor is used to detect whether there is bar stock extending into the gap between the first welding seat and the second welding seat.

[0015] 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

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a three-dimensional structural schematic diagram of a welding device according to one embodiment of the present invention; Figure 2 yes Figure 1 A schematic diagram of the structure of the welding device, including the first welding seat and the first welding head; Figure 3 yes Figure 1 A schematic diagram of the structure of the welding device, including the second welding seat and the second welding head; Figure 4 yes Figure 1 A schematic diagram of the structure of the first pusher and the first drive component of the welding device; Figure 5 yes Figure 1 A schematic diagram of the structure of the second pusher and the second drive component of the welding device; Figure 6 yes Figure 1 A top view of the welding apparatus; Figure 7 yes Figure 1 An enlarged schematic diagram of part of the welding device.

[0017] Figure label: Welding device 100; clamping mechanism 10; first welding seat 11; clamping groove 111; second welding seat 12; clamping groove 121; guide rail 13; slider 14; base 15; welding mechanism 20; first welding head 21; second welding head 22; first pusher 31; first drive 32; second pusher 33; second drive 34; base 41; positioning sensor 42. Detailed Implementation

[0018] 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.

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying 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.

[0020] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0021] 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.

[0022] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0023] 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.

[0024] Please see Figures 1 to 3 , Figure 1 This is a three-dimensional structural schematic diagram of the welding device 100 according to one embodiment of the present utility model; Figure 2 yes Figure 1 A schematic diagram of the structure of the welding device 100, including the first welding seat 11 and the first welding head 21; Figure 3 yes Figure 1 A schematic diagram of the structure of the welding apparatus 100, including the second welding seat 12 and the second welding head 22. This utility model provides a welding apparatus 100, which includes a clamping mechanism 10 and a welding mechanism 20. The clamping mechanism 10 includes a first welding seat 11 and a second welding seat 12, which are respectively used to clamp corresponding bars. The first welding seat 11 and the second welding seat 12 can move relative to each other in a first direction parallel to the radial direction of the bars, so that the axes of the two bars coincide. The welding mechanism 20 is used to energize the two bars to weld them into a product.

[0025] Specifically, in the first direction, i.e. the X direction, the first welding seat 11 and the second welding seat 12 are arranged along the X direction, and when the first welding seat 11 and the second welding seat 12 clamp the bar stock, the axial direction of the bar stock is parallel to the X direction. The second welding seat 12 is mounted on the base 41, and the first welding seat 11 is movably mounted on the base 41 along the Y direction. The first welding seat 11 and the second welding seat 12 are arranged along the X direction. The welding mechanism 20 can abut against the bar stock on the first welding seat 11 and the bar stock on the second welding seat 12, and connect one bar stock to the positive terminal of the power supply and the other bar stock to the negative terminal of the power supply. When the end face of the bar stock on the first welding seat 11 abuts against the end face of the bar stock on the second welding seat 12, the welding mechanism 20 can energize the two bar stock so that the current flows through the two bar stock and welds the two bar stock to form a product.

[0026] It is understood that the radial direction of the bar stock clamped by the first welding seat 11 and the second welding seat 12 is perpendicular to the X direction. When the first welding seat 11 moves along the Y direction on the base 41, the first welding seat 11 drives the corresponding bar stock to move, so that the relative position of the two bars stock in the radial direction can be changed, thereby enabling the two bars stock to move relative to each other until the axes of the two bars stock coincide. When the axes of the two bars stock coincide, the welding mechanism 20 can weld the two bars stock into a product with the expected shape and size.

[0027] The welding device 100 of this utility model allows the first welding seat 11 and the second welding seat 12 to move relative to each other in a first direction parallel to the radial direction of the bar stock, so that the axes of the two bars stock coincide, thereby enabling the adjustment of the relative position of the two bars stock when they contact each other, and thus reducing the dimensional deviation of the product.

[0028] Please see Figures 1 to 3 In one embodiment of this implementation, the first solder pad 11 and the second solder pad 12 are rotatably connected about an axis parallel to a second direction, which is perpendicular to the first direction.

[0029] Specifically, the second direction is parallel to the Z direction, and the second welding socket 12 is rotatably mounted on the base 41 about an axis parallel to the Z direction. It is understood that the axis of the bar stock clamped by the first welding socket 11 and the axis of the bar stock clamped by the second welding socket 12 may intersect. Welding two bars with intersecting axes will result in the welded product having dimensions that do not meet expectations. By rotatably mounting the second welding socket 12 on the base 41 about an axis parallel to the Z direction, the second welding socket 12 can drive the bar stock clamped by the second welding socket 12 to rotate relative to the bar stock clamped by the first welding socket 11. This ensures that the axes of the bar stock clamped by the first welding socket 11 and the bar stock clamped by the second welding socket 12 are parallel, which helps reduce the risk of the welded product having dimensions that do not meet expectations.

[0030] Please see Figures 1 to 3In one embodiment of this implementation, the clamping mechanism 10 further includes a guide rail 13 and a slider 14. The guide rail 13 is connected to the second welding seat 12, and the slider 14 is slidably mounted on the guide rail 13 in a first direction. The first welding seat 11 is mounted on the slider 14.

[0031] Specifically, the guide rail 13 extends along the Y direction and is mounted on the base 41. The slider 14 can slide along the Y direction and engages with the guide rail 13. It should be noted that the tightness of contact between the bar stock clamped by the first welding seat 11 and the bar stock clamped by the second welding seat 12 affects the welding effect. When the movement direction of the first welding seat 11 on the base 41 deviates from the Y direction, the relative position of the two bars in the X direction will not meet expectations, potentially leading to poor quality of the welded product. Understandably, the slider 14 can drive the first welding seat 11 to slide along the guide rail 13, and the guide rail 13 can guide the movement of the slider 14 along the Y direction, improving the movement accuracy of the first welding seat 11 and reducing the deviation of the first welding seat 11's movement direction from the Y direction, thus improving the quality of the welded product.

[0032] Please see Figures 1 to 3 In one embodiment of this implementation, the first solder pad 11 and the second solder pad 12 are slidably connected along a second direction.

[0033] Specifically, the first welding seat 11 is slidably disposed on the base 41 in the Z direction. In some embodiments, the first welding seat 11 and the slider 14 are slidably engaged in the Z direction.

[0034] It is understandable that there may be a gap between the axes of the two bars in both the Z and Y directions, resulting in the axes of the two bars not coinciding. By slidably connecting the first welding seat 11 and the second welding seat 12 in the second direction, the first welding seat 11 can move relative to the second welding seat 12 in the Z and Y directions, thereby eliminating the gap between the axes of the two bars in the direction perpendicular to the X direction. This is beneficial to improving the flexibility of adjusting the relative position of the two bars, and can further reduce the risk that the dimensions of the welded product do not meet expectations.

[0035] Please see Figures 1 to 3 In one embodiment of this implementation, the clamping mechanism 10 further includes a base 15, a first welding seat 11 which is slidably mounted on the base 15 along a first direction, and a second welding seat 12 which is rotatably connected to the base 15 about an axis parallel to a second direction.

[0036] Specifically, the base 15 is mounted on the base 41, the first welding seat 11 is movable along the Y direction and mounted on the base 15, and the second welding seat 12 is rotatable around the Z direction and mounted on the base 41. It can be understood that the radial distance between the axes of the two bars can be adjusted by moving the first welding seat 11 on the base 15, and the axial angle of the two bars can be adjusted by rotating the second welding seat 12 on the base 41. By allowing the first welding seat 11 and the second welding seat 12 to move independently to adjust the relative position of the two bars, interference between the adjustment of the radial distance and the adjustment of the axial angle of the bars can be reduced, which helps to improve the accuracy of adjusting the relative position of the two bars.

[0037] Please see Figures 1 to 3 In one embodiment of this implementation, the welding mechanism 20 includes a first welding head 21 and a second welding head 22. The first welding head 21 is used to energize the bar stock clamped in the first welding seat 11, and the second welding head 22 is used to energize the bar stock clamped in the second welding seat 12. The first welding head 21 is connected to the first welding seat 11 so that it can move with the first welding seat 11.

[0038] Specifically, the first welding head 21 is located on one side of the first welding base 11 along the Y direction, and the second welding head 22 is located on one side of the second welding base 12 along the Y direction. In some embodiments, the first welding head 21 is connected to the slider 14, and the second welding head 22 is mounted on the base 41 so that the first welding head 21 can slide with the first welding base 11. It is understood that when the difference between the radial dimension of the bar material clamped by the first welding base 11 and the radial dimension of the bar material clamped by the second welding base 12 is large, the first welding base 11 needs to slide a large distance to make the axes of the two bars coincide, which may cause the first welding head 21 to fail to contact the bar material on the first welding base 11. The ability of the first welding head 21 to slide with the first welding base 11 reduces the risk of the first welding head 21 failing to contact the bar material on the first welding base 11, which is beneficial for the normal progress of the welding process.

[0039] Please see Figures 1 to 4 , Figure 6 , Figure 4 yes Figure 1 A schematic diagram of the structure of the first pusher 31 and the first drive member 32 of the welding device 100; Figure 6 yes Figure 1 A top view of the welding apparatus 100. In one embodiment of this invention, the welding apparatus 100 further includes a first pusher 31 and a first drive 32. The first drive 32 is connected to the first pusher 31. The first pusher 31 is used to abut against the bar stock clamped in the first welding seat 11. The first drive 32 can drive the first pusher 31 to move so that the first pusher 31 pushes the bar stock clamped in the first welding seat 11 toward the bar stock clamped in the second welding seat 12.

[0040] Specifically, the first driving component 32 is a cylinder with a driving direction parallel to the X direction. The driving end of the first driving component 32 is connected to the first pusher component 31. The first pusher component 31 is located on the side of the first welding seat 11 away from the second welding seat 12. When the first welding seat 11 clamps the bar stock, the two end faces of the bar stock are exposed on opposite sides of the first welding seat 11 along the X direction.

[0041] Understandably, the first driving member 32 can drive the first pushing member 31 to move toward the first welding seat 11, so that the first pushing member 31 abuts against the end face of the bar on the first welding seat 11, and pushes the bar on the first welding seat 11 toward the second welding seat 12, so that the end face of the bar on the first welding seat 11 fits with the end face of the bar on the second welding seat 12. This arrangement can improve the automation level of the welding device 100 and improve the quality of the welded product.

[0042] Please see Figures 1 to 4 In one embodiment of this implementation, the welding device 100 further includes a pressure sensor, which is mounted on the first pusher 31 and electrically connected to the first drive member 32. The pressure sensor is used to detect the clamping force between the bar material clamped by the first welding seat 11 and the bar material clamped by the second welding seat 12. The pressure sensor can adjust the driving force of the first drive member 32 on the first pusher 31.

[0043] Specifically, in some embodiments, the first driving member 32 is a linear motor with a driving direction parallel to the X direction.

[0044] It should be noted that if the clamping force between the two bars is too small, the quality of the welded product will be low. If the clamping force between the two bars is too large, the molten parts of the two bars will deform unexpectedly during the welding process, resulting in the product's dimensions not meeting the requirements.

[0045] Understandably, the driving force output by the linear motor is adjustable. After the bar stock clamped by the first welding seat 11 and the bar stock clamped by the second welding seat 12 come into contact, the clamping force between the two bars is transmitted to the first pusher 31. This allows the pressure sensor to collect the clamping force data on the first pusher 31 and send a control signal to the first drive 32 to adjust the driving force of the first drive 32 on the first pusher 31. This reduces the risk of excessive or insufficient clamping force between the two bars, which is beneficial for improving the quality of the welded product and reducing the risk of the product's dimensions not meeting requirements. It should be understood that when the two bars come into contact, the force transmitted to the first pusher 31 will change abruptly. This can be used to determine whether the two bars have come into contact, thus reducing the risk that the first drive 32 has failed to push the bar stock on the first welding seat 11 into place.

[0046] Please see Figures 1 to 6 , Figure 5 yes Figure 1 A schematic diagram of the structure of the second pusher 33 and the second drive member 34 of the welding apparatus 100. In one embodiment of this implementation, the welding apparatus 100 further includes a second pusher 33 and a second drive member 34. The second pusher 33 is used to abut against the bar stock clamped in the second welding seat 12. The second drive member 34 can drive the second pusher 33 to move so that the second pusher 33 pushes the bar stock clamped in the second welding seat 12 toward the bar stock clamped in the first welding seat 11, and causes one end of the bar stock clamped in the second welding seat 12 to extend to the side of the second welding seat 12 facing the first welding seat 11.

[0047] Specifically, the second driving member 34 is a linear motor with a driving direction parallel to the X direction, the second pusher 33 is located on the side of the second welding seat 12 away from the first welding seat 11, the driving end of the second driving member 34 is connected to the second pusher 33, and when the second welding seat 12 clamps the bar stock, the two end faces of the bar stock are exposed on opposite sides of the second welding seat 12 along the X direction.

[0048] It is understood that the second driving member 34 can drive the second pusher 33 to move towards the second welding seat 12, so that the second pusher 33 abuts against one end face of the bar on the second welding seat 12, and pushes the bar on the second welding seat 12 towards the first welding seat 11, so that the end face of the bar on the second welding seat 12 fits against the end face of the bar on the first welding seat 11. This arrangement can improve the automation level of the welding device 100 and improve the quality of the welded product. It should be noted that in some embodiments, the second driving member 34 is electrically connected to a pressure sensor. The second driving member 34 can adjust the driving force output to the second pusher 33 according to the clamping force signal collected by the pressure sensor, so that the second driving member 34 can cooperate with the first driving member 32 to control the clamping force between the two bars.

[0049] Please see Figures 1 to 3 , Figure 7 , Figure 7 yes Figure 1 An enlarged schematic diagram of a portion of the structure of the welding apparatus 100. In one embodiment of this implementation, the clamping mechanism 10 further includes a positioning sensor 42. A first welding seat 11 and a second welding seat 12 are spaced apart. The first welding seat 11 has a clamping groove 111 for clamping bar stock. The clamping groove 111 extends through the first welding seat 11 so that one end of the bar stock clamped by the first welding seat 11 can extend from the side of the first welding seat 11 toward the second welding seat 12 and be exposed in the gap between the first welding seat 11 and the second welding seat 12. The positioning sensor 42 is used to detect whether any bar stock extends into the gap between the first welding seat 11 and the second welding seat 12.

[0050] Specifically, the first welding seat 11 and the second welding seat 12 are arranged at intervals along the X direction. The positioning sensor 42 is positioned opposite to the first welding seat 11 and the second welding seat 12. The positioning sensor 42 can be a photoelectric sensor. The clamping groove 111 passes through the first welding seat 11 along the X direction so that the opposite end faces of the bar material clamped by the first welding seat 11 are exposed on opposite sides of the first welding seat 11 along the X direction.

[0051] It should be understood that, in some embodiments, the positioning sensor 42 is electrically connected to the second drive member 34. The first pusher 31 can extend from the side of the first welding seat 11 away from the second welding seat 12 into the clamping groove 111 to push the bar stock in the clamping groove 111 toward the second welding seat 12, and make one end of the bar stock in the clamping groove 111 extend into the gap between the first welding seat 11 and the second welding seat 12. One end of the bar stock clamped by the second welding seat 12 is located in the gap between the first welding seat 11 and the second welding seat 12. The second welding seat 12 is provided with a clamping groove 121, which extends through the second welding seat 12 in the X direction. The bar stock clamped by the second welding seat 12 is located in the clamping groove 121. The second pusher 33 can extend from the side of the second welding seat 12 away from the first welding seat 11 into the clamping groove 121 and push the bar stock in the clamping groove 121 until part of the bar stock extends into the gap between the first welding seat 11 and the second welding seat 12.

[0052] Understandably, when the bar stock moves to a preset position within the gap between the first welding seat 11 and the second welding seat 12, the positioning sensor 42 is activated and can send a control signal to the second drive unit 34. The second drive unit 34 can drive the second pusher 33 to push the bar stock in the clamping groove 121 along the X direction. When the end of the bar stock facing the first welding seat 11 moves to the preset position within the gap, the positioning sensor 42 is activated, and the positioning sensor 42 sends a control signal to the second drive unit 34, causing the second drive unit 34 to stop driving the second pusher 33, so that the bar stock is fixed at the current position. Subsequently, the first drive unit 32 can drive the first pusher 31 to push the bar stock in the clamping groove 111, so that the bar stock in the clamping groove 111 faces the second welding seat 12. When the bar stock in the clamping groove 111 moves towards the end of the second welding seat 12 and abuts against the end of the bar stock in the clamping groove 121 towards the first welding seat 11, the force on the first pusher 31 changes abruptly and rises. The pressure sensor on the first pusher 31 can capture the rising edge of the force on the first pusher and send a control signal to the first drive 32 to stop the first drive 32 from driving the first pusher 31, or to make the first drive 32 maintain a preset driving force to drive the first pusher 31 so that the clamping force between the two bars meets the expectation. It should be noted that the joint between the two bars forms the weld of the product. During the welding process, the weld may expand or sputter molten metal. This arrangement allows the two bars to abut at a preset position and ensures that the distance between the weld and the first welding seat 11 and the second welding seat 12 meets expectations. This reduces the risk of the expanding weld abutting against the first welding seat 11 or the second welding seat 12, which could cause the two bars to move relative to each other and result in the product's dimensions not meeting expectations. It also reduces the risk of molten metal splashing and adhering to the walls of the clamping groove 121 or the mounting groove 111, thereby reducing the risk that subsequent welding cannot proceed normally.

[0053] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention 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 invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. A welding apparatus, characterized in that, include: The clamping mechanism includes a first welding seat and a second welding seat, which are respectively used to clamp corresponding bars. The first welding seat and the second welding seat can move relative to each other in a first direction parallel to the radial direction of the bars so that the axes of the two bars coincide. A welding mechanism for energizing two of the bars to weld the two bars together to form a product.

2. The welding apparatus according to claim 1, characterized in that, The first solder pad and the second solder pad are rotatably connected about an axis parallel to a second direction, which is perpendicular to the first direction.

3. The welding apparatus according to claim 1, characterized in that, The clamping mechanism further includes a guide rail and a slider. The guide rail is connected to the second welding base, and the slider is slidably mounted on the guide rail along the first direction. The first welding base is mounted on the slider.

4. The welding apparatus according to claim 2, characterized in that, The first solder pad and the second solder pad are slidably connected along the second direction.

5. The welding apparatus according to claim 2, characterized in that, The clamping mechanism further includes a base, the first welding seat is slidably mounted on the base along the first direction, and the second welding seat is rotatably connected to the base about an axis parallel to the second direction.

6. The welding apparatus according to claim 1, characterized in that, The welding mechanism includes a first welding head and a second welding head. The first welding head is used to energize the bar stock clamped in the first welding seat, and the second welding head is used to energize the bar stock clamped in the second welding seat. The first welding head is connected to the first welding seat so that it can move with the first welding seat.

7. The welding apparatus according to claim 1, characterized in that, The welding device further includes a first pusher and a first drive. The first drive is connected to the first pusher. The first pusher is used to abut against the bar stock clamped in the first welding seat. The first drive can drive the first pusher to move so that the first pusher pushes the bar stock clamped in the first welding seat towards the bar stock clamped in the second welding seat.

8. The welding apparatus according to claim 7, characterized in that, The welding device further includes a pressure sensor, which is mounted on the first pusher and electrically connected to the first drive. The pressure sensor is used to detect the clamping force between the bar stock clamped by the first welding seat and the bar stock clamped by the second welding seat. The pressure sensor can adjust the driving force of the first drive on the first pusher.

9. The welding apparatus according to claim 7, characterized in that, The welding device further includes a second pusher and a second drive. The second pusher is used to abut against the bar stock clamped in the second welding seat. The second drive can drive the second pusher to move so that the second pusher pushes the bar stock clamped in the second welding seat toward the bar stock clamped in the first welding seat, and causes one end of the bar stock clamped in the second welding seat to extend to the side of the second welding seat facing the first welding seat.

10. The welding apparatus according to claim 1, characterized in that, The clamping mechanism further includes a positioning sensor. The first welding seat and the second welding seat are spaced apart. The first welding seat has a clamping groove for clamping the bar stock. The clamping groove extends through the first welding seat so that one end of the bar stock clamped by the first welding seat can extend from the first welding seat toward the second welding seat and be exposed in the gap between the first welding seat and the second welding seat. The positioning sensor is used to detect whether the bar stock extends into the gap between the first welding seat and the second welding seat.

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