Clamping device for welding

Abstract

The utility model discloses a clamping device for welding, which comprises a processing platform, a first clamping mechanism, a second clamping mechanism and a third clamping mechanism, and a processing area for placing a workpiece A and a workpiece B is arranged on the upper side of the processing platform; the first clamping mechanism is provided with two clamping plates located on the two sides of the two workpieces A in the length direction and a driving piece A capable of driving one clamping plate to move towards or away from the other clamping plate. The second clamping mechanism is provided with two clamping cutters located beside the two vertical sides of the workpiece B correspondingly, a driving piece B capable of driving the two clamping cutters to clamp or break away from the two vertical sides of the workpiece B correspondingly, and two clamping blocks cooperatively matched with the two clamping cutters to clamp and fix the two vertical sides of the workpiece B to the two workpieces A correspondingly. The third clamping mechanism is provided with a pressing strip and a driving piece C capable of driving the pressing strip to move towards or away from the upper side of the workpiece B. The clamping device can automatically and stably clamp and position a plurality of workpieces which are combined together, so that the machining quality and the machining efficiency are improved; and flexible configuration can be carried out according to the number of workpieces, and applicability is good.

Description

Technical Field

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

[0002] As is known to all, when processing a workpiece, such as welding, in order to ensure the processing accuracy of the workpiece, it is usually necessary to fix the workpiece with a clamping device before welding or other processing is performed on it.

[0003] However, the existing clamping devices can generally only clamp and position a single workpiece. If multiple workpieces are to be processed in combination, they cannot be clamped and positioned quickly and stably, which seriously affects the processing quality and efficiency.

[0004] In view of this, the present utility model is proposed. Summary of the invention

[0005] In order to overcome the above-mentioned defects, the utility model provides a clamping device for welding. On the one hand, the clamping device can realize automatic and stable clamping and positioning of multiple workpieces combined together, effectively improving the processing quality and efficiency; on the other hand, the clamping device can be flexibly configured according to the number of workpieces and has good applicability.

[0006] The utility model adopts a technical solution to solve the technical problem: a welding clamping device, comprising:

[0007] A processing platform, the upper side of which is provided with a processing area for placing workpieces; wherein the workpieces include two workpieces A in the shape of long arcs and arranged side by side in the processing area, and a workpiece B in the shape of an inverted U and mounted on the two workpieces A;

[0008] A first clamping mechanism, which comprises two clamping plates spaced apart in the processing area and respectively located on both sides of the length direction of the two workpieces A, and a driving member A capable of driving one clamping plate to move toward or away from the other clamping plate, so as to realize clamping, positioning or loosening of the two workpieces A;

[0009] The second clamping mechanism comprises two clamping knives arranged opposite to each other in the processing area and respectively located beside the two sides of the workpiece B, a driving member B capable of driving the two clamping knives to clamp or release the two sides of the workpiece B respectively, and two clamping blocks arranged in the processing area and respectively cooperating with the two clamping knives, that is, the two clamping blocks can cooperate with the two clamping knives to clamp and fix the two sides of the workpiece B to the two workpieces A;

[0010] The third clamping mechanism is provided with a pressure strip located above the processing area and a driving member C capable of driving the pressure strip to move toward or away from the upper side of the workpiece B, so as to press and fix the upper side of the workpiece B to the two workpieces A.

[0011] As a further improvement of the present invention, the processing area is rectangular, and the two workpieces A are arranged side by side along the width direction of the processing area.

[0012] As a further improvement of the utility model, the two clamping plates are spaced apart along the length direction of the processing area and form an eight-shaped shape to match the arrangement of the two workpieces A;

[0013] The first clamping plate is slidably disposed in the processing area, and the second clamping plate is fixedly disposed in the processing area.

[0014] As a further improvement of the utility model, a slide rail extending toward the second clamping plate is fixedly laid on the processing area, and the first clamping plate is slidably arranged on the slide rail via a slider;

[0015] The driving member A comprises a cylinder A, which is arranged in the processing area and connected to the first clamping plate to drive the first clamping plate to move toward or away from the second clamping plate.

[0016] As a further improvement of the utility model, the two clamping knives are each provided with a knife body and a clamping opening provided on one side of the knife body;

[0017] The second clamping mechanism is further provided with two support seats which are arranged opposite to the processing area and are respectively located beside the two sides of the workpiece B, and the two support seats are respectively provided with guide cavities; the other sides of the two knife bodies are respectively movably inserted into the two guide cavities, and at the same time, the two clamping openings are respectively facing the two sides of the workpiece B;

[0018] The driving member B includes two cylinders B, both of which are arranged in the processing area and are respectively connected to the other sides of the two tool bodies to drive the two tool clamps to clamp or detach the two sides of the workpiece B respectively.

[0019] As a further improvement of the present invention, in each of the support seats, the transverse width of the guide cavity is slightly greater than the thickness of the other side of the knife body;

[0020] In addition, a top side of each support seat is provided with an avoidance groove for avoiding the pressure strip.

[0021] As a further improvement of the present invention, the first clamping block is fixedly arranged in the processing area, and is arranged opposite to the clamping opening of the first clamping tool, and is also located on the inner side of the first workpiece A in the width direction;

[0022] The second clamping block is movably disposed in the processing area, and is disposed opposite to the clamping opening of the second clamping tool, and is also located on the inner side of the second workpiece A in the width direction;

[0023] The second clamping mechanism is further provided with a cylinder C, which is arranged in the processing area and connected to the second clamping block at the same time, so as to drive the second clamping block to move toward or away from the clamping opening of the second clamping tool.

[0024] As a further improvement of the present invention, the second clamping mechanism is further provided with a guide groove for movably accommodating and guiding the second clamping block, and the guide groove is formed by two guide blocks that are spaced apart and fixedly arranged in the processing area.

[0025] As a further improvement of the utility model, the driving member C comprises a lifting cylinder positioned above the processing area and a mounting plate fixedly connected to the bottom end of the piston rod of the lifting cylinder;

[0026] The pressure strip is fixedly connected to the lower side of the mounting plate and corresponds to the position of the workpiece B at the same time; in addition, the shape of the bottom side of the pressure strip also matches the shape of the top side of the workpiece B.

[0027] As a further improvement of the present invention, the workpiece B is configured as a plurality of workpieces and arranged at intervals along the arc length direction of the workpiece A;

[0028] Correspondingly, the second clamping mechanisms are also configured into multiple groups and correspond one-to-one to the multiple workpieces B; and the pressure strips are also configured into multiple groups and correspond one-to-one to the multiple workpieces B.

[0029] The beneficial effects of the utility model are as follows: ① Compared with the prior art, the clamping device of the utility model can realize automatic and stable clamping and positioning of multiple workpieces combined together, effectively improving the processing (welding) quality and processing efficiency. ② In the clamping device of the utility model, the number of the second clamping mechanism and the pressure strip can be flexibly configured according to the number of workpieces (specifically workpiece B), which greatly improves the applicability of the clamping device. ③ The clamping device of the utility model has a simple structure, is easy to process and manufacture, and has a low manufacturing cost, which is conducive to its production implementation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1It is a three-dimensional structural schematic diagram of the welding clamping device of the utility model in a use state;

[0031] Figure 2 for Figure 1 The schematic diagram of the main structure of the welding clamping device in use;

[0032] Figure 3 for Figure 1 The left side structural schematic diagram of the welding clamping device in use state;

[0033] Figure 4 for Figure 1 The right side structural schematic diagram of the welding clamping device in use state is shown;

[0034] Figure 5 for Figure 1 A schematic diagram of the partial structure of the welding clamping device in use;

[0035] Figure 6 for Figure 5 The schematic diagram of the structure of the welding clamping device in use state after the workpiece is removed;

[0036] Figure 7 for Figure 6 A schematic diagram of a partial structure of a welding clamping device shown;

[0037] Figure 8 for Figure 7 An enlarged structural schematic diagram of part A is shown;

[0038] Fig. 9 for Figure 7 An enlarged structural schematic diagram of part B is shown.

[0039] Combined with the attached drawings, the following description is given:

[0040] 1. Processing platform; 10. Processing area; 11. Slide rail; 20. Clamp; 21. Drive member A; 210. Cylinder A; 211. Support A; 3. Second clamping mechanism; 30. Clamping tool; 300. Knife body; 301. Clamping mouth; 31. Drive member B; 310. Cylinder B; 311. Support B; 32. Clamping block; 33. Support seat; 330. Guide cavity; 331. Avoidance groove; 34. Cylinder C; 35. Guide block; 4. Third clamping mechanism; 40. Pressure strip; 41. Drive member C; 410. Lifting cylinder; 411. Mounting plate; 42. Bracket C; L1. Workpiece A; L2. Workpiece B. DETAILED DESCRIPTION

[0041] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0042] Embodiment 1:

[0043] This embodiment 1 provides a welding clamping device, which is used to clamp and position a workpiece to be welded.

[0044] Please refer to the attached Figure 1 To Attachment Fig. 9 As shown, the welding clamping device provided in this embodiment 1 mainly includes a processing platform 1, a first clamping mechanism, a second clamping mechanism 3 and a third clamping mechanism 4, wherein the processing platform 1 is provided with a processing area 10 for placing workpieces on the upper side, and the workpieces include two workpieces AL1 which are long arc-shaped and arranged side by side in the processing area 10 and a workpiece BL2 which is in an inverted U shape and mounted on the two workpieces AL1; the first clamping mechanism is provided with two clamping plates 20 which are arranged at intervals in the processing area 10 and are respectively located on both sides of the length direction of the two workpieces AL1, and a driving member A21 which can drive one of the clamping plates 20 to move toward or away from the other clamping plate 20, so as to realize the clamping positioning or loosening of the two workpieces AL1 in the length direction; the second clamping mechanism The third clamping mechanism 4 is provided with two clamping tools 30 which are relatively arranged in the processing area 10 and are respectively located beside the two sides of the workpiece BL2, a driving member B31 which can drive the two clamping tools 30 to clamp or detach from the two sides of the workpiece BL2, and two clamping blocks 32 which are arranged in the processing area 10 and respectively cooperate with the two clamping tools 30, that is, the two clamping blocks 32 can cooperate with the two clamping tools 30 to clamp and fix the two sides of the workpiece BL2 to the two workpieces AL1; the third clamping mechanism 4 is provided with a pressure strip 40 located above the processing area 10 and a driving member C41 which can drive the pressure strip 40 to move toward or away from the upper side of the workpiece BL2, so as to realize the pressing and fixing of the upper side of the workpiece BL2 to the two workpieces AL1.

[0045] According to the above structural description of the clamping device, it can be known that the clamping method of the clamping device described in this embodiment 1 is:

[0046] S1: First, the two workpieces AL1 are arranged side by side in the processing area 10, and the two workpieces AL1 are placed between the two clamping plates 20, and one end of the two workpieces AL1 in the arc length direction is against the second clamping plate 20 (see below, the second clamping plate 20 is fixed relative to the processing area 10 and is not connected to the driving member A21);

[0047] Then the driving member A21 works and drives the first clamping plate 20 to move toward the second clamping plate 20 to clamp and position the two workpieces AL1 in their length direction;

[0048] S2: The workpiece BL2 is mounted on the two workpieces AL1, and then the driving member B31 works, and drives the two clamping knives 30 to move toward the two sides of the workpiece BL2 respectively, so as to clamp the two sides of the workpiece BL2; then, the clamping blocks 32 cooperate to clamp the two sides of the workpiece BL2 to the two workpieces AL1;

[0049] S3: The driving member C41 works and drives the pressing bar 40 to press downward relative to the upper side of the workpiece BL2, so as to press and fix the upper side of the workpiece BL2 against the two workpieces AL1. At this time, the clamping device of this embodiment 1 completes the clamping and positioning of the workpiece AL1 and the workpiece BL2.

[0050] Note: The loading operation of the workpiece AL1 and the workpiece BL2 can be realized by manual or mechanical operation. Since it is not the protection point of the utility model patent, it will not be described in detail here.

[0051] As can be seen from the above, compared with the prior art, the clamping device of the utility model can realize automatic and stable clamping and positioning of multiple workpieces combined together, effectively improving the processing (welding) quality and processing efficiency. Moreover, in the clamping device of the utility model, the number of the second clamping mechanism and the pressure strip can be flexibly configured according to the number of workpieces (specifically workpiece B), which greatly improves the applicability of the clamping device.

[0052] The specific structure of the welding clamping device of the present invention is described in detail below.

[0053] First, regarding the processing platform 1 and the first clamping mechanism.

[0054] Please continue to refer to the attached Figure 1 To Attachment Figure 7 As shown, in this embodiment, according to the requirements of the workpiece shape and the processing environment, the processing area 10 is preferably rectangular, and accordingly, the two workpieces AL1 are arranged side by side along the width direction of the processing area 10.

[0055] In view of the position layout of the two workpieces AL1, in this embodiment, preferably, the two clamping plates 20 are arranged at intervals along the length direction of the processing area 10 and form an eight-shaped shape to match the shape and layout of the two workpieces AL1.

[0056] Moreover, in order to realize convenient and stable clamping and positioning of the two workpieces AL1, the installation method of the two clamps 20 is optimized as follows: the first clamp 20 is slidably set in the processing area 10 (that is, the first clamp 20 is a movable structure) and connected to the driving member A21, and the second clamp 20 is fixedly set in the processing area 10 (that is, the second clamp 20 is a fixed structure). In this way, during operation, the second clamp 20 can be used to resist one end of the workpiece AL1 in the arc length direction, and then the driving member A21 can be used to drive the first clamp 20 to move to press the other end of the workpiece AL1 in the arc length direction, so that the workpiece AL1 can be clamped and fixed.

[0057] In addition, the structure of the first clamping plate 20 in this embodiment is slidably disposed in the processing area 10 and connected to the driving member A21 as follows: Figure 5 To Attachment Figure 7 As shown, a slide rail 11 extending toward the second splint 20 is fixedly laid on the processing area 10, and the first splint 20 is slidably set on the slide rail 11 through a slider; the driving member A21 includes a cylinder A210, and the cylinder A210 is fixedly set on the processing area 10 through a support A211 and is simultaneously connected to the first splint 20 (that is, one end of the piston rod of the cylinder A210 is connected to the first splint 20) to drive the first splint 20 to move toward or away from the second splint 20.

[0058] Next, let us discuss the second clamping mechanism 3 .

[0059] Please continue to refer to the attached Figure 5 To Attachment Fig. 9 As shown, in the second clamping mechanism 3 described in this embodiment, the two clamping tools 30 are each provided with a tool body 300 and a clamping opening 301 provided on one side of the tool body 300. Specifically, the clamping opening 301 can be understood as a two-forked structure formed on one side of the tool body 300, and the clamping opening 301 is used to clamp the vertical side of the workpiece BL2.

[0060] The structure for realizing that the driving member B31 can drive the two clamping jaws 301 of the two clamping knives 30 to clamp or release the two sides of the workpiece BL2 is as follows: Figure 5 To Attachment Fig. 9As shown, the second clamping mechanism 3 is also provided with two support seats 33 which are relatively arranged in the processing area 10 and are respectively located beside the two sides of the workpiece BL2. The two support seats 33 are respectively provided with guide cavities 330. The other sides of the two tool bodies 300 are respectively movably inserted in the two guide cavities 330, and at the same time, the two clamps 301 are respectively facing the two sides of the workpiece BL2; the driving member B31 includes two cylinders B310, and the two cylinders B310 are both arranged in the processing area 10 and are respectively connected to the other sides of the two tool bodies 300 (it can be understood that the piston rods of the two cylinders B310 are also respectively and movably inserted in the two guide cavities 330), so as to realize driving so that the clamps 301 of the two tool clamps 30 can clamp or detach from the two sides of the workpiece BL2.

[0061] Further preferably, in each of the support seats 33, the lateral width of the guide cavity 330 is slightly greater than the thickness of the other side of the knife body 300, so that the guide cavity 330 can accommodate and guide the clamping knife 30; in addition, each of the support seats 33 is also provided with an avoidance groove 331 on the top side for avoiding the pressure strip 40, which can be seen in the attached drawing for details. Figure 8 and attached Fig. 9 shown.

[0062] Further preferably, the two cylinders B310 are fixedly arranged in the processing area 10 through supports B311, respectively. Figure 8 and attached Fig. 9 shown.

[0063] In addition, it can be known from the above that the clamping knife 30 and the driving member B31 can be combined to clamp and position the workpiece BL2. However, in order to avoid positional displacement of the workpiece AL1 during the clamping of the workpiece BL2, and to stably combine the workpiece BL2 with the workpiece AL1 to facilitate subsequent welding, the second clamping mechanism 3 is improved as follows in this embodiment: a clamping block 32 that cooperates with the two clamping knives 30 is provided, so that the two clamping blocks 32 can cooperate with the two clamping knives 30 to clamp and fix the two sides of the workpiece BL2 to the two workpieces AL1.

[0064] For details, please refer to the attached Figure 5 , Attachment Figure 7 To Attachment Fig. 9As shown, of the two clamping blocks 32, the first clamping block 32 is fixedly arranged in the processing area 10, and is simultaneously arranged opposite to the clamping opening 301 of the first clamping tool 30, and is also simultaneously located on the inner side of the width direction of the first workpiece AL1; it is understandable that when the first workpiece AL1 is placed, the first workpiece AL1 can be made to abut against the first clamping block 32, that is: the first clamping block 32 and the first clamping tool 30 are relatively located on the inner and outer sides of the width direction of the first workpiece AL1, so that when the first clamping tool 30 clamps one vertical side of the workpiece BL2, the first clamping block 32 can cooperate with the stop limit of the first workpiece AL1 to clamp one vertical side of the workpiece BL2 to the first workpiece AL1.

[0065] The second clamp block 32 is movably arranged in the processing area 10, and is arranged opposite to the clamping opening 301 of the second clamping tool 30, and is also located at the inner side of the width direction of the second workpiece AL1; and the second clamping mechanism 3 is also provided with a cylinder C34, which is arranged in the processing area 10 and connected to the second clamp block 32 to drive the second clamp block 32 to move toward or away from the clamping opening 301 of the second clamping tool 30. It can be understood that the second clamp block 32 and the second clamping tool 30 are relatively located at the inner and outer sides of the width direction of the second workpiece AL1. As mentioned above, the second clamp block 32 can cooperate with the second clamping tool 30 to clamp and fix the other vertical side of the workpiece BL2 to the second workpiece AL1. The reason why the second clamp block 32 is designed as a movable structure is mainly to provide a larger gap to the workpiece by adjusting the position of the second clamp block 32 during the workpiece unloading operation, so as to facilitate the workpiece to be taken away quickly and easily.

[0066] Further preferably, the second clamping mechanism 3 is further provided with a guide groove for movably accommodating and guiding the second clamping block 32, and the guide groove is formed by two guide blocks 35 that are spaced apart and fixedly arranged in the processing area 10. Fig. 9 shown.

[0067] Next, let's talk about the third clamping mechanism 4 .

[0068] Please continue to refer to the attached Figure 1 To Attachment Figure 4As shown, in the third clamping mechanism 4 described in this embodiment, the driving member C41 includes a lifting cylinder 410 positioned above the processing area 10 through a bracket C42 and a mounting plate 411 fixedly connected to the bottom end of the piston rod of the lifting cylinder 410; the pressure strip 40 is fixedly connected to the lower side of the mounting plate 411 and corresponds to the position of the workpiece BL2 at the same time. In addition, the bottom side shape of the pressure strip 40 also matches the top side shape of the workpiece BL2.

[0069] Further preferably, in the present embodiment, the workpiece BL2 is configured into a plurality of pieces and arranged at intervals along the arc length direction of the workpiece AL1.

[0070] Correspondingly, the pressing strips 40 are also configured in multiple numbers and correspond one-to-one with the multiple workpieces BL2. Also, the second clamping mechanisms 3 are also configured in multiple groups and correspond one-to-one with the multiple workpieces BL2.

[0071] Note: In this specification, the prefixes of component names such as "first", "second", "third", etc. (such as the first clamping mechanism, the second clamping mechanism, the third clamping mechanism, etc.) and the suffixes of component names such as "A", "B", "C", etc. (such as drive member A, drive member B, drive member C, etc.) are only for the convenience of description and are not used to limit the scope of implementation of this utility model patent.

[0072] In summary, the welding clamping device of the utility model can not only realize automatic and stable clamping and positioning of multiple workpieces combined together, effectively improving the processing quality and processing efficiency, but also can be flexibly configured according to the number of workpieces, and has good applicability. Moreover, the structure of the clamping device is simple, easy to process and manufacture, and the manufacturing cost is low, which is conducive to its production implementation.

[0073] In the above description, many specific details are described to facilitate a full understanding of the present invention. However, the above description is only a preferred embodiment of the present invention. The present invention can be implemented in many other ways different from those described herein, so the present invention is not limited by the specific implementation disclosed above. At the same time, any person familiar with the technical field can make many possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of protection of the technical solution of the present invention.

Claims

1. A welding clamping device, characterized in that: include: A processing platform (1) is provided with a processing area (10) on its upper side for placing workpieces; wherein the workpieces include two workpieces A which are long arc-shaped and arranged side by side in the processing area (10) and a workpiece B which is in an inverted U shape and mounted on the two workpieces A; A first clamping mechanism, comprising two clamping plates (20) spaced apart in the processing area (10) and respectively located on both sides of the two workpieces A in the length direction, and a driving member A (21) capable of driving one of the clamping plates (20) to move toward or away from the other clamping plate (20), so as to achieve clamping, positioning or loosening of the two workpieces A; The second clamping mechanism (3) comprises two clamping knives (30) arranged opposite to each other in the processing area (10) and respectively located beside the two sides of the workpiece B, a driving member B (31) capable of driving the two clamping knives (30) to clamp or release the two sides of the workpiece B, and two clamping blocks (32) arranged in the processing area (10) and respectively cooperating with the two clamping knives (30), that is, the two clamping blocks (32) can cooperate with the two clamping knives (30) to clamp and fix the two sides of the workpiece B to the two workpieces A. A third clamping mechanism (4) is provided with a pressure strip (40) located above the processing area (10) and a driving member C (41) capable of driving the pressure strip (40) to move toward or away from the upper side of the workpiece B, so as to press and fix the upper side of the workpiece B to the two workpieces A.

2. The welding clamping device according to claim 1, characterized in that: The processing area (10) is rectangular, and the two workpieces A are arranged side by side along the width direction of the processing area (10).

3. The welding clamping device according to claim 2, characterized in that: The two clamping plates (20) are arranged at intervals along the length direction of the processing area (10) and form an eight-shaped shape to match the arrangement of the two workpieces A; The first clamping plate (20) is slidably disposed in the processing area (10), and the second clamping plate (20) is fixedly disposed in the processing area (10).

4. The welding clamping device according to claim 3, characterized in that: A slide rail (11) extending toward the second clamping plate (20) is fixedly laid on the processing area (10), and the first clamping plate (20) is slidably arranged on the slide rail (11) via a slider; The driving member A (21) includes a cylinder A (210), which is arranged in the processing area (10) and is simultaneously connected to the first clamping plate (20) to drive the first clamping plate (20) to move toward or away from the second clamping plate (20).

5. The welding clamping device according to claim 2, characterized in that: The two clamping knives (30) are each provided with a knife body (300) and a clamping opening (301) provided on one side of the knife body (300); The second clamping mechanism (3) is further provided with two support seats (33) which are arranged opposite to the processing area (10) and are respectively located beside the two sides of the workpiece B, and the two support seats (33) are respectively provided with a guide cavity (330); the other sides of the two knife bodies (300) are respectively movably inserted into the two guide cavities (330), and at the same time, the two clamping openings (301) are respectively facing the two sides of the workpiece B; The driving member B (31) comprises two cylinders B (310), and the two cylinders B (310) are both arranged in the processing area (10) and are respectively connected to the other side of the two tool bodies (300) to achieve driving so that the clamping openings (301) of the two clamping tools (30) can clamp or detach the two sides of the workpiece B respectively.

6. The welding clamping device according to claim 5, characterized in that: In each of the support seats (33), the transverse width of the guide cavity (330) is slightly greater than the thickness of the other side of the knife body (300); In addition, a top side of each of the support seats (33) is provided with an avoidance groove (331) for avoiding the pressure strip (40).

7. The welding clamping device according to claim 5, characterized in that: The first clamping block (32) is fixedly arranged in the processing area (10), and is arranged opposite to the clamping opening (301) of the first clamping tool (30), and is also located on the inner side of the first workpiece A in the width direction; The second clamping block (32) is movably arranged in the processing area (10), and is arranged opposite to the clamping opening (301) of the second clamping tool (30), and is also located on the inner side of the second workpiece A in the width direction; The second clamping mechanism (3) is also provided with a cylinder C (34), which is arranged in the processing area (10) and is simultaneously connected to the second clamping block (32) so as to drive the second clamping block (32) to move toward or away from the clamping opening (301) of the second clamping tool (30).

8. The welding clamping device according to claim 7, characterized in that: The second clamping mechanism (3) is also provided with a guide groove for movably accommodating and guiding the second clamping block (32), and the guide groove is formed by two guide blocks (35) that are spaced apart and fixedly arranged in the processing area (10).

9. The welding clamping device according to claim 1, characterized in that: The driving member C (41) comprises a lifting cylinder (410) positioned above the processing area (10) and a mounting plate (411) fixedly connected to the bottom end of the piston rod of the lifting cylinder (410); The pressure strip (40) is fixedly connected to the lower side of the mounting plate (411) and corresponds to the position of the workpiece B at the same time; in addition, the shape of the bottom side of the pressure strip (40) also matches the shape of the top side of the workpiece B.

10. The welding clamping device according to claim 1, characterized in that: The workpiece B is configured as a plurality of workpieces and arranged at intervals along the arc length direction of the workpiece A; Correspondingly, the second clamping mechanism (3) is also configured into multiple groups and corresponds one-to-one to the multiple workpieces B; and the pressure strip (40) is also configured into multiple groups and corresponds one-to-one to the multiple workpieces B.

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