Welding device

Abstract

The utility model provides a welding device. The welding device comprises a base; the welding assembly is arranged on the base, the welding assembly comprises a welding part, and the welding part is used for welding a to-be-welded part; the clamping assembly comprises two clamping parts which are oppositely arranged, each clamping part comprises a fixing part, an elastic part and a clamping part, the fixing parts are arranged on the base, each clamping part comprises a connecting end and a clamping end which are oppositely arranged, the connecting ends are movably arranged on the fixing parts, the clamping ends of the two clamping parts are oppositely arranged, and the elastic parts are arranged on the clamping parts. The clamping ends of the two clamping parts are close to or far away from each other, the two clamping ends are matched to clamp a to-be-welded part, the elastic part is arranged between the fixing part and the clamping part, and the elastic part applies acting force towards the other clamping part to the clamping part. According to the positioning structure, the to-be-welded part can be conveniently clamped, the stability of the to-be-welded part in the welding process is ensured, and the problem that in the prior art, a positioning structure of a welding device is poor in operation flexibility is solved.

Description

Technical Field

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

[0002] Mining trusses consist of a top beam, a shield beam and a four-bar linkage, side guard plates, a base, and columns. They are mainly used in underground coal mine tunneling, support, and roadway construction.

[0003] During construction, the trusses need to be welded using welding equipment. The welding equipment includes a base and welding components mounted on the base. To improve the stability of the trusses during welding, a positioning structure is typically installed on the base to position the trusses and ensure their stability during welding. However, existing positioning structures offer limited operational flexibility. Utility Model Content

[0004] This invention provides a welding device to solve the problem of poor positioning structure and operational flexibility in existing welding devices.

[0005] This utility model provides a welding device, which includes: a base; a welding assembly disposed on the base, the welding assembly including a welding part for welding the parts to be welded; and a clamping assembly including two clamping parts disposed opposite to each other, the clamping parts including a fixing member, an elastic member and a clamping member, the fixing member being disposed on the base, and the clamping member including a connecting end and a clamping end disposed opposite to each other, the connecting end being movably disposed on the fixing member, the clamping ends of the two clamping parts being disposed facing each other, the clamping ends of the two clamping parts being close to or far from each other, the two clamping ends cooperating to clamp the parts to be welded, and the elastic member being disposed between the fixing member and the clamping member, the elastic member applying a force toward the other clamping part to the clamping member.

[0006] Furthermore, the fixing member is provided with a sliding hole, the extension direction of which is the same as the movement direction of the clamping member, and the connecting end of the clamping member is movably inserted into the sliding hole.

[0007] Furthermore, the fixing component includes: a fixing block disposed on the base, a sliding hole disposed on the fixing block, the sliding hole penetrating the fixing block; a fixing frame, one end of the fixing frame disposed on the fixing block, the other end located on the side of the fixing block away from the clamping end of the clamping component, an elastic element located on the side where the connecting end of the clamping component is located, one end of the elastic element being connected to the connecting end of the clamping component, and the other end being connected to the fixing frame.

[0008] Furthermore, the mounting bracket and the mounting block are detachably connected.

[0009] Furthermore, the fixing bracket and the fixing block are inserted and mated together.

[0010] Furthermore, the fixing frame includes a plug-in rod and a connecting rod. The connecting rod is located on the side of the fixing block away from the clamping end of the clamping member. There are two plug-in rods, which are respectively located at both ends of the connecting rod. Both plug-in rods are located on the side of the connecting rod close to the fixing block. The fixing block is provided with two plug-in holes. The plug-in rods are plugged into the corresponding plug-in holes. A limiting structure is also provided between the fixing frame and the fixing block. The limiting structure is used to limit the relative position of the fixing frame and the fixing block in the plugging direction of the fixing frame.

[0011] The connecting rods of the mounting bracket and the connecting holes of the mounting block are inserted into each other to connect the mounting bracket and the mounting block. The limiting structure prevents the mounting bracket from moving relative to the mounting block, thus securing the mounting bracket and the mounting block. The two connecting rods of the mounting bracket enhance its structural stability and improve the stability of the connection between the mounting bracket and the mounting block. The limiting structure restricts the relative position of the mounting bracket and the mounting block in the insertion direction, ensuring that the positional relationship between the mounting bracket and the mounting block remains consistent each time they are reinstalled. This further stabilizes the connection between the mounting bracket and the mounting block, allowing for more stable and reliable clamping of the components to be welded.

[0012] Furthermore, the insertion hole extends through the fixing block along the length of the insertion rod, and the end of the insertion rod away from the connecting rod extends through the insertion hole. The limiting structure includes: a locking block located at the end of the fixing block away from the connecting rod, the locking block being detachably connected to the insertion rod; and a stepped structure disposed on the insertion rod, the stepped structure abutting against the side of the fixing block facing the connecting rod.

[0013] Specifically, after the connector rod is inserted into the connector hole, the locking block is fixedly connected to the end of the connector rod away from the connecting rod. The locking block restricts the fixing frame, preventing it from moving away from the clamping component and enhancing the structural stability of the clamping part. The stepped structure ensures a consistent insertion depth of the connector rod into the fixing block, making the installation of the fixing frame and the fixing block more convenient. It prevents the fixing frame from shifting due to inconsistent insertion depths of the connector rod, improving the installation accuracy of the clamping part and facilitating more stable clamping of the components to be welded.

[0014] Furthermore, the welding device also includes: a guide rod extending along the moving direction of the clamping member, one end of the guide rod being mounted on the fixed frame, the other end being guided and engaged with the clamping member, and an elastic element being sleeved on the guide rod.

[0015] Furthermore, the two clamping ends are both concave arc-shaped structures facing the connecting end on the side that is close to each other. After the two clamping ends come into contact, a clamping groove is formed between the two concave arc-shaped structures facing the connecting end.

[0016] Furthermore, the welding assembly also includes: a frame, mounted on a base, with the welding section movably mounted on the frame along the height direction; and a drive unit, mounted on the frame, which is drivenly connected to the welding section to raise and lower the welding section.

[0017] The technical solution of this utility model facilitates the clamping of components to be welded, ensuring their stability during the welding process and offering high operational convenience. Specifically, when welding is required, the component is first placed in a predetermined position on the base, ensuring the welding area is aligned with the welding portion of the welding assembly. The operator applies forces to the clamping parts of the two clamping parts, moving them away from each other. Since the clamping parts and the fixing parts are connected by elastic elements, the applied force compresses the elastic elements, and simultaneously, the clamping ends of the two clamping parts move away from each other, forming a placement space so that the fixing part of the component to be welded can pass through and be placed between the two clamping parts. Once the fixing part of the component to be welded is in place, the operator releases the force applied to the clamping parts. At this point, the elastic elements push the corresponding clamping end of the clamping part closer to the other clamping end, thereby achieving clamping and fixing of the component to be welded. This solution offers high operational convenience and can adapt to components of different sizes and shapes, ensuring the wide applicability and adaptability of the welding device. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0019] Figure 1 A schematic diagram of the welding device provided by this utility model is shown;

[0020] Figure 2 A schematic diagram of the clamping part provided by this utility model is shown;

[0021] Figure 3 A schematic diagram of the welding assembly provided by this utility model is shown.

[0022] The above figures include the following reference numerals:

[0023] 10. Base;

[0024] 20. Welding assembly; 21. Welding section; 22. Frame; 23. Drive unit;

[0025] 30. Clamping part;

[0026] 31. Fastener; 3101. Sliding hole;

[0027] 311, Fixing block; 3111, Insertion hole;

[0028] 312. Fixing bracket; 3121. Insertion rod; 3122. Connecting rod;

[0029] 32. Elastic components;

[0030] 33. Clamping components;

[0031] 41. Locking block; 42. Stepped structure;

[0032] 50. Guide rod;

[0033] 60. Chip removal groove. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0035] like Figures 1 to 3 As shown, this embodiment of the present invention provides a welding device, which includes a base 10, a welding assembly 20, and a clamping assembly. The welding assembly 20 is disposed on the base 10 and includes a welding portion 21 for welding the parts to be welded. The clamping assembly includes two clamping portions 30 disposed opposite to each other. Each clamping portion 30 includes a fixing member 31, an elastic member 32, and a clamping member 33. The fixing member 31 is disposed on the base 10, and the clamping member 33 includes a connecting end and a clamping end disposed opposite to each other. The connecting end is movably disposed on the fixing member 31. The clamping ends of the two clamping portions 30 are arranged facing each other, moving closer or further apart, and cooperate to clamp the parts to be welded. The elastic member 32 is disposed between the fixing member 31 and the clamping member 33, and applies a force to the clamping member 33 towards the other clamping portion 30.

[0036] The technical solution of this utility model can facilitate the clamping of the parts to be welded, ensure the stability of the parts to be welded during the welding process, and is highly convenient to operate.

[0037] Specifically, when welding is required on the components to be welded, firstly, the components to be welded are placed in a predetermined position on the base 10, ensuring that the area to be welded on the component is aligned with the welding portion 21 of the welding assembly 20. The operator applies a force to the clamping members 33 of the two clamping parts 30, moving them away from each other. Since the clamping members 33 and the fixing members 31 are connected by elastic members 32, the applied force compresses the elastic members 32, and at the same time, the clamping ends of the two clamping members 33 move away from each other, forming a placement space so that the fixing part of the component to be welded can pass through and be placed between the two clamping members 33. Once the fixing part of the component to be welded is in place, the operator releases the force applied to the clamping members 33. At this time, the elastic members 32 push the clamping end of the corresponding clamping member 33 closer to the other clamping end, thereby achieving clamping and fixing of the component to be welded. This design offers strong operational convenience and can adapt to components of different sizes and shapes, ensuring the wide applicability and adaptability of the welding device.

[0038] Specifically, the fixing member 31 is provided with a sliding hole 3101. The extension direction of the sliding hole 3101 is the same as the movement direction of the clamping member 33. The connecting end of the clamping member 33 is movably inserted into the sliding hole 3101. The sliding hole 3101 provides guidance for the movement of the clamping member 33, which is conducive to the accurate clamping of the parts to be welded and improves the operational controllability of the clamping part 30.

[0039] In this embodiment of the solution, a chip removal groove 60 is provided on the base 10. The chip removal groove 60 is located below the welding part 21, and the part to be welded is installed above the chip removal groove 60. This allows the welding slag and debris generated during the welding process to fall and be discharged through the chip removal groove 60 below the part to be welded, thereby reducing the damage to the base 10 caused by the welding slag and debris and increasing the service life of the welding device.

[0040] Furthermore, the fixing member 31 includes a fixing block 311 and a fixing frame 312. The fixing block 311 is disposed on the base 10, and a sliding hole 3101 is disposed on the fixing block 311, with the sliding hole 3101 penetrating through the fixing block 311. One end of the fixing frame 312 is disposed on the fixing block 311, and the other end is located on the side of the fixing block 311 away from the clamping end of the clamping member 33. The elastic member 32 is located on the side where the connecting end of the clamping member 33 is located. One end of the elastic member 32 is connected to the connecting end of the clamping member 33, and the other end is connected to the fixing frame 312.

[0041] In this embodiment, the fixing frame 312 is fixedly connected to the fixing block 311, so that the fixing frame 312 is also in a fixed state. The fixing frame 312 provides fixed support for the elastic member 32, so that the end of the elastic member 32 connected to the fixing frame 312 is in a fixed state, and the end of the elastic member 32 connected to the clamping member 33 can apply a force away from the fixing member 31 to the clamping member 33, so that the clamping member 33 moves away from the fixing member 31, thereby clamping and fixing the part to be welded.

[0042] In this embodiment of the solution, the fixing frame 312 and the fixing block 311 are detachably connected.

[0043] This solution does not limit the specific connection method between the fixing frame 312 and the fixing block 311.

[0044] In this embodiment, the fixing frame 312 and the fixing block 311 are plugged into each other. The plug-in connection method makes the installation and disassembly of the fixing frame 312 and the fixing block 311 more convenient. The operator can quickly connect or separate the fixing frame 312 and the fixing block 311, which helps to quickly replace the fixing frame 312 or maintain the fixing frame 312, improving the efficiency of installation and disassembly and the convenience of operation.

[0045] Specifically, the fixing frame 312 has a portal frame structure and includes a plug-in rod 3121 and a connecting rod 3122. The connecting rod 3122 is located on the side of the fixing block 311 away from the clamping end of the clamping member 33. There are two plug-in rods 3121, which are respectively located at both ends of the connecting rod 3122 and are located on the side of the connecting rod 3122 close to the fixing block 311. The fixing block 311 has two plug-in holes 3111, and the plug-in rods 3121 are plugged into the corresponding plug-in holes 3111. A limiting structure is also provided between the fixing frame 312 and the fixing block 311 to limit the relative position of the fixing frame 312 and the fixing block 311 in the plugging direction of the fixing frame 312.

[0046] In this embodiment of the solution, the plug rod 3121 of the fixing frame 312 is plugged into the plug hole 3111 of the fixing block 311 to realize the connection between the fixing frame 312 and the fixing block 311.

[0047] The two plug rods 3121 of the fixing frame 312 make the structure of the fixing frame 312 more stable, and at the same time enhance the stability of the connection between the fixing frame 312 and the fixing block 311.

[0048] The limiting structure prevents the fixing bracket 312 from moving relative to the fixing block 311, making the connection between the fixing bracket 312 and the fixing block 311 more stable and achieving fixation of the fixing bracket 312 and the fixing block 311. Furthermore, the limiting structure restricts the relative position of the fixing bracket 312 and the fixing block 311 in the insertion direction, ensuring that the positional relationship between the fixing bracket 312 and the fixing block 311 remains consistent each time they are reinstalled.

[0049] Furthermore, the insertion hole 3111 extends through the fixing block 311 along the length of the insertion rod 3121, and the end of the insertion rod 3121 away from the connecting rod 3122 extends through the insertion hole 3111. The limiting structure includes a locking block 41 and a stepped structure 42. The locking block 41 is located at the end of the fixing block 311 away from the connecting rod 3122, and the locking block 41 is detachably connected to the insertion rod 3121. The stepped structure 42 is provided on the insertion rod 3121, and the stepped structure 42 abuts against the side of the fixing block 311 facing the connecting rod 3122.

[0050] Specifically, after the insertion rod 3121 is inserted into place, the stepped structure 42 abuts against the side of the fixing block 311 facing the connecting rod 3122. At this time, the insertion rod 3121 cannot be further inserted into the insertion hole 3111. Then, the locking block 41 is connected to the end of the insertion rod 3121 away from the connecting rod 3122, thereby fixing the position of the insertion rod 3121. The above settings ensure that the insertion depth of the insertion rod 3121 into the fixing block 311 is consistent, making the installation of the fixing bracket 312 and the fixing block 311 more convenient. It prevents the positional displacement of the fixing bracket 312 due to uneven insertion depth of the insertion rod 3121, improves the installation accuracy of the fixing bracket 312 and the fixing block 311, and improves the installation accuracy of the clamping part 30.

[0051] Furthermore, the welding device also includes a guide rod 50, which extends along the moving direction of the clamping member 33. One end of the guide rod 50 is mounted on the fixed frame 312, and the other end is guided and engaged with the clamping member 33. The elastic member 32 is sleeved on the guide rod 50.

[0052] Specifically, one end of the guide rod 50 is mounted on the fixed frame 312, specifically on the connecting rod 3122, and the other end of the guide rod 50 is guided and cooperated with the clamping member 33 to form a stable guide structure. The elastic member 32 is sleeved on the guide rod 50. This design can effectively reduce the excessive lateral displacement of the elastic member 32 during compression or tension, and enhance the stability and reliability of the elastic member 32.

[0053] Specifically, the end of the clamping member 33 connected to the elastic member 32 is provided with a guide hole, which extends along the moving direction of the clamping member 33. The guide rod 50 extends along the extending direction of the guide hole, and the end of the guide rod 50 away from the connecting rod 3122 is movably inserted into the guide hole. This configuration results in a simple structure and good guiding effect.

[0054] Furthermore, the two clamping ends are both concave arc-shaped structures facing the connecting end on the side that is close to each other. After the two clamping ends come into contact, a clamping groove is formed between the two concave arc-shaped structures facing the connecting end.

[0055] In this design, the arc surface structure increases the contact area between the clamping component 33 and the part to be welded, thereby improving the stability of the clamping. At the same time, the arc surface can distribute the clamping force more evenly, reducing the deformation or damage to the part to be welded caused by local force concentration. The clamping groove formed between the two arc surface structures allows the clamping assembly to better clamp parts with irregular shapes or curved surfaces, improving the adaptability of the clamping assembly.

[0056] In this embodiment, the clamping member 33 includes a sliding rod and a clamping plate that are connected to each other along the moving direction. The clamping plate is perpendicular to the sliding rod. The end of the sliding rod away from the clamping plate is movably inserted into the sliding hole 3101. The side of the clamping plate away from the sliding rod has an arc-shaped structure that is concave towards the connecting end.

[0057] like Figure 3 As shown, the welding assembly 20 further includes a frame 22 and a drive unit 23. The frame 22 is mounted on the base 10, and the welding part 21 is movably mounted on the frame 22 along the height direction. The drive unit 23 is mounted on the frame 22 and is drivenly connected to the welding part 21 to make the welding part 21 rise and fall.

[0058] In this design, the frame 22 serves as a support structure, fixed to the base 10, providing a stable working platform for the welding section 21 and the drive section 23.

[0059] Specifically, the welding part 21 and the driving part 23 are driven to connect by a threaded engagement. The driving part 23 includes a drive motor and a threaded rod. When the height of the welding part 21 is adjusted, the drive motor of the driving part 23 drives the threaded rod to rotate. The threaded rod engages with the welding part 21, allowing the welding part 21 to move in the height direction.

[0060] The drive unit 23 can precisely adjust the height and position of the welding unit 21 according to the actual welding requirements, thereby adapting to different sized parts to be welded. This allows the welding unit 21 to accurately align with the welding point of the part to be welded and stably weld the part, enhancing the versatility and adaptability of the welding device.

[0061] The drive unit 23 simplifies the process for the operator to adjust the height of the welding unit 21. By controlling the drive unit 23, the welding unit 21 can be raised and lowered without manual adjustment, reducing the operator's labor intensity and improving the degree of automation and operating efficiency.

[0062] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0063] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as exemplary only and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0064] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0065] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0066] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this utility model.

[0067] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A welding apparatus, characterized in that, The welding apparatus includes: Base (10); A welding assembly (20) is disposed on the base (10), the welding assembly (20) includes a welding part (21) for welding the parts to be welded; The clamping assembly includes two clamping parts (30) arranged opposite to each other. Each clamping part (30) includes a fixing member (31), an elastic member (32), and a clamping member (33). The fixing member (31) is disposed on the base (10). The clamping member (33) includes a connecting end and a clamping end arranged opposite to each other. The connecting end is movably disposed on the fixing member (31). The clamping ends of the two clamping parts (30) are arranged facing each other. The clamping ends of the two clamping parts (30) are close to or far from each other. The two clamping ends cooperate to clamp the part to be welded. The elastic member (32) is disposed between the fixing member (31) and the clamping member (33). The elastic member (32) applies a force toward the other clamping part (30) to the clamping member (33).

2. The welding apparatus according to claim 1, characterized in that, The fixing member (31) is provided with a sliding hole (3101), the extension direction of the sliding hole (3101) is the same as the movement direction of the clamping member (33), and the connecting end of the clamping member (33) is movably inserted into the sliding hole (3101).

3. The welding apparatus according to claim 2, characterized in that, The fastener (31) includes: A fixing block (311) is disposed on the base (10), and a sliding hole (3101) is disposed on the fixing block (311) and the sliding hole (3101) is disposed through the fixing block (311); A fixing frame (312) is provided at one end on the fixing block (311) and at the other end on the side of the fixing block (311) away from the clamping end of the clamping member (33). An elastic member (32) is located on the side where the connecting end of the clamping member (33) is located. One end of the elastic member (32) is connected to the connecting end of the clamping member (33) and the other end is connected to the fixing frame (312).

4. The welding apparatus according to claim 3, characterized in that, The fixing frame (312) is detachably connected to the fixing block (311).

5. The welding apparatus according to claim 4, characterized in that, The fixing frame (312) is inserted into the fixing block (311).

6. The welding apparatus according to claim 5, characterized in that, The fixing frame (312) includes a plug-in rod (3121) and a connecting rod (3122). The connecting rod (3122) is located on the side of the fixing block (311) away from the clamping end of the clamping member (33). There are two plug-in rods (3121), which are respectively located at both ends of the connecting rod (3122). Both plug-in rods (3121) are located on the side of the connecting rod (3122) close to the fixing block (311). The fixing block (311) is provided with two plug-in holes (3111). The plug-in rods (3121) are plugged into the plug-in holes (3111) respectively. A limiting structure is also provided between the fixing frame (312) and the fixing block (311). The limiting structure is used to limit the relative position of the fixing frame (312) and the fixing block (311) in the plugging direction of the fixing frame (312).

7. The welding apparatus according to claim 6, characterized in that, The insertion hole (3111) extends through the fixing block (311) along the length of the insertion rod (3121), and the end of the insertion rod (3121) away from the connecting rod (3122) extends through the insertion hole (3111). The limiting structure includes: A locking block (41) is located at the end of the fixing block (311) away from the connecting rod (3122), and the locking block (41) is detachably connected to the plug rod (3121); A stepped structure (42) is provided on the plug rod (3121), and the stepped structure (42) abuts against the side of the fixing block (311) facing the connecting rod (3122).

8. The welding apparatus according to claim 3, characterized in that, The welding apparatus further includes: Guide rod (50) extends along the moving direction of clamping member (33). One end of the guide rod (50) is disposed on the fixing frame (312), and the other end is guided and cooperated with the clamping member (33). The elastic member (32) is sleeved on the guide rod (50).

9. The welding apparatus according to claim 1, characterized in that, Both clamping ends have concave arc-shaped structures on the side facing each other, and after the two clamping ends come into contact, a clamping groove is formed between the two concave arc-shaped structures facing the connection end.

10. The welding apparatus according to claim 1, characterized in that, The welding assembly (20) also includes: A frame (22) is mounted on the base (10), and the welding part (21) is movably mounted on the frame (22) along the height direction; A drive unit (23) is provided on the frame (22), and the drive unit (23) is driven to connect with the welding unit (21) so that the welding unit (21) can be raised and lowered.

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