Automatic electric resistance welding clamping welding mechanism

Abstract

The utility model discloses an automatic clamping welding mechanism for electric resistance welding. The automatic clamping welding mechanism comprises a first mounting seat, a second mounting seat, a first clamping welding assembly, a second clamping welding assembly, a clamping driving mechanism, a first temperature sensor and a second temperature sensor, the first clamping and welding assembly is connected to the first mounting base, the second clamping and welding assembly is connected to the second mounting base, the first clamping and welding assembly and the second clamping and welding assembly are oppositely arranged, and the clamping driving mechanism is connected with the first mounting base and the second mounting base. The clamping driving mechanism is used for driving the second mounting base to move towards or away from the first mounting base, a first cooling runner is arranged in the first clamping and welding assembly, and a second cooling runner is arranged in the second clamping and welding assembly. According to the cooling device, the first clamping and welding assembly and the second clamping and welding assembly can be cooled, overheating of the first clamping and welding assembly and the second clamping and welding assembly can be prevented, and therefore the welding quality and normal welding operation can be guaranteed.

Description

Technical Field

[0001] The utility model relates to an automatic resistance welding clamping welding mechanism. Background Art

[0002] At present, in a resistance welding clamp welding mechanism, two clamp welding assemblies are used to clamp the workpiece, and then the clamp welding assemblies are energized so that when the current passes through the workpiece, resistance heat is generated, and then the workpiece is welded by applying pressure. For example, a clamp welding machine is disclosed in a Chinese patent with publication number CN214393000U. However, in the existing resistance welding clamp welding mechanism, the clamp welding assembly cannot be cooled down. After welding the workpiece for a long time, the temperature of the clamp welding assembly will gradually increase and overheat, which will cause the quality of the welded workpiece to decrease or even cause the welding operation to fail normally. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide an automatic resistance welding clamping mechanism, which can cool the first clamping welding component and the second clamping welding component, prevent the first clamping welding component and the second clamping welding component from overheating, and thus ensure the welding quality and normal welding operation.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: an automatic resistance welding clamp welding mechanism, which includes a first mounting seat, a second mounting seat, a first clamp welding assembly, a second clamp welding assembly, a clamping drive mechanism, a first temperature sensor and a second temperature sensor;

[0005] The first clamping welding assembly is connected to the first mounting seat, the second clamping welding assembly is connected to the second mounting seat, and the first clamping welding assembly and the second clamping welding assembly are arranged opposite to each other;

[0006] The clamping drive mechanism is connected to the first mounting seat and the second mounting seat respectively, and is used to drive the second mounting seat to move toward the first mounting seat so as to make the first clamping welding assembly and the second clamping welding assembly move toward each other to clamp the workpiece, and the clamping drive mechanism is also used to drive the second mounting seat to move away from the first mounting seat so as to make the first clamping welding assembly and the second clamping welding assembly move away from each other to release the workpiece;

[0007] The first temperature sensor is connected to the first clamp welding assembly and is used to detect the temperature of the first clamp welding assembly;

[0008] The second temperature sensor is connected to the second clamping welding assembly and is used to detect the temperature of the second clamping welding assembly;

[0009] The first clamp welding assembly is provided with a first cooling channel for passing a cooling medium to cool the first clamp welding assembly;

[0010] The second clamp welding assembly is provided with a second cooling channel for passing a cooling medium to cool the second clamp welding assembly.

[0011] Furthermore, the automatic resistance welding clamp welding mechanism also includes a frame, a lifting seat, a lifting drive component and a transverse drive component;

[0012] The lifting seat is slidably connected to the frame in the up-down direction;

[0013] The lifting drive component is installed on the frame, connected to the lifting seat and used to drive the lifting seat to move up and down;

[0014] The first mounting seat and the second mounting seat are respectively connected to the lifting seat in a sliding manner along the left and right directions;

[0015] The transverse driving component is installed on the lifting seat, connected to the first mounting seat and used for driving the first mounting seat and the second mounting seat to move to positions on the lifting seat in the left-right direction.

[0016] A specific structure of the clamping drive mechanism is further provided, wherein the clamping drive mechanism comprises a clamping cylinder;

[0017] The cylinder body of the clamping cylinder is connected to any one of the first mounting seat and the second mounting seat;

[0018] The piston rod of the clamping cylinder is connected to the other of the first mounting seat and the second mounting seat;

[0019] The clamping cylinder is used to drive the second mounting seat to move toward or away from the first mounting seat along the left-right direction.

[0020] Furthermore, the cylinder body of the clamping cylinder is connected to the second mounting seat, and the piston rod of the clamping cylinder is connected to the first mounting seat through a connecting rod; wherein one end of the connecting rod is connected to the first mounting seat, and the other end of the connecting rod is connected to the piston rod of the clamping cylinder.

[0021] Furthermore, the automatic resistance welding clamping mechanism also includes an electrical proportional valve, which is connected to the clamping cylinder and is used to control the air pressure in the clamping cylinder.

[0022] Further provided is a specific structure of the first clamping welding assembly and the second clamping welding assembly, wherein the first clamping welding assembly comprises a first electrode, a first copper head and a first base block, wherein the first electrode is connected to the first copper head, the first copper head is connected to the first base block, and the first base block is connected to the first mounting seat;

[0023] The second clamping welding assembly comprises a second electrode, a second copper head and a second base block, the second electrode is connected to the second copper head, the second copper head is connected to the second base block, and the second base block is connected to the second mounting seat;

[0024] The first electrode and the second electrode are arranged opposite to each other and are used to clamp and release the workpiece;

[0025] The first temperature sensor is connected to the first base block and is used to detect the temperature of the first base block;

[0026] The second temperature sensor is connected to the second base block and is used to detect the temperature of the second base block;

[0027] The first cooling channel is provided in the first base block;

[0028] The second cooling channel is disposed in the second base block.

[0029] Furthermore, an insulating plate is provided between the first base block and the first mounting seat, and between the second base block and the second mounting seat, respectively.

[0030] Furthermore, a first mounting slot is provided on the first base block, and a portion of the first copper head is embedded in the first mounting slot;

[0031] The second base block is provided with a second mounting slot, and a part of the second copper head is embedded in the second mounting slot.

[0032] Furthermore, the automatic resistance welding clamp welding mechanism also includes a displacement detection component, and the displacement detection component includes a displacement sensor and a detection rod;

[0033] The detection rod is connected to any one of the first mounting seat and the second mounting seat;

[0034] The displacement sensor is connected to the other of the first mounting seat and the second mounting seat and is aligned with the detection rod.

[0035] Furthermore, the automatic resistance welding clamp welding mechanism also includes at least one blowing pipe for blowing air toward the workpiece being welded.

[0036] After adopting the above technical solution, first, the clamping drive mechanism drives the second mounting seat to move toward the first mounting seat so that the first clamping welding assembly and the second clamping welding assembly move toward each other to clamp the workpiece to be welded, and then the first clamping welding assembly and the second clamping welding assembly are powered on so that current flows through the workpiece to generate resistance heat, and the first clamping welding assembly and the second clamping welding assembly can apply clamping force to the workpiece, thereby performing resistance welding on the workpiece. During the welding process, the first temperature sensor can detect the temperature of the first clamping welding assembly, and the second temperature sensor can detect the temperature of the second clamping welding assembly. When the temperature of the first clamping welding assembly and the second clamping welding assembly is too high, a cooling medium is introduced into the first cooling channel to cool the first clamping welding assembly, and a cooling medium is introduced into the second cooling channel to cool the second clamping welding assembly, thereby preventing the first clamping welding assembly and the second clamping welding assembly from overheating, so as to ensure the quality of the welded workpiece and ensure the normal progress of the welding operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a structural schematic diagram of the automatic resistance welding clamp welding mechanism of the utility model;

[0038] Figure 2 It is a structural schematic diagram of the frame, lifting seat, lifting drive component and transverse drive component of the utility model;

[0039] Figure 3 It is a structural schematic diagram of the first mounting seat, the second mounting seat, the first clamping welding assembly, the second clamping welding assembly, the clamping drive mechanism, the first temperature sensor and the second temperature sensor of the utility model;

[0040] Figure 4 It is an assembly explosion diagram of the first mounting seat, the second mounting seat, the first clamping welding assembly, the second clamping welding assembly, the first temperature sensor and the second temperature sensor of the utility model;

[0041] Figure 5 It is a cross-sectional view of the first base block of the utility model. DETAILED DESCRIPTION

[0042] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

[0043] like Figures 1 to 5 As shown, an automatic resistance welding clamping mechanism comprises a first mounting seat 1, a second mounting seat 2, a first clamping assembly 3, a second clamping assembly 4, a clamping drive mechanism 5, a first temperature sensor 6 and a second temperature sensor 7;

[0044] The first clamping welding assembly 3 is connected to the first mounting seat 1, and the second clamping welding assembly 4 is connected to the second mounting seat 2, and the first clamping welding assembly 3 and the second clamping welding assembly 4 are arranged opposite to each other;

[0045] The clamping drive mechanism 5 is connected to the first mounting seat 1 and the second mounting seat 2 respectively, and the clamping drive mechanism 5 is used to drive the second mounting seat 2 to move toward the first mounting seat 1 so as to make the first clamping welding assembly 3 and the second clamping welding assembly 4 move toward each other to clamp the workpiece, and the clamping drive mechanism 5 is also used to drive the second mounting seat 2 to move away from the first mounting seat 1 so as to make the first clamping welding assembly 3 and the second clamping welding assembly 4 move away from each other to release the workpiece;

[0046] The first temperature sensor 6 is connected to the first clamping welding component 3 and is used to detect the temperature of the first clamping welding component 3;

[0047] The second temperature sensor 7 is connected to the second clamping welding component 4 and is used to detect the temperature of the second clamping welding component 4;

[0048] The first clamping welding component 3 is provided with a first cooling channel 8 for passing a cooling medium to cool the first clamping welding component 3;

[0049] The second clamping welding component 4 is provided with a second cooling channel 9 for passing a cooling medium to cool the second clamping welding component 4 .

[0050] Specifically, first, the clamping drive mechanism 5 drives the second mounting seat 2 to move toward the first mounting seat 1 so that the first clamping welding assembly 3 and the second clamping welding assembly 4 move toward each other to clamp the workpiece to be welded, and then the first clamping welding assembly 3 and the second clamping welding assembly 4 are powered on so that current flows through the workpiece to generate resistance heat, and the first clamping welding assembly 3 and the second clamping welding assembly 4 can apply a clamping force to the workpiece, thereby performing resistance welding on the workpiece. During the welding process, the first temperature sensor 6 can detect the temperature of the first clamping welding assembly 3, and the second temperature sensor 7 can detect the temperature of the second clamping welding assembly 4. When the temperature of the first clamping welding assembly 3 and the second clamping welding assembly 4 is too high, a cooling medium is introduced into the first cooling channel 8 to cool the first clamping welding assembly 3, and a cooling medium is introduced into the second cooling channel 9 to cool the second clamping welding assembly 4, thereby preventing the first clamping welding assembly 3 and the second clamping welding assembly 4 from overheating, so as to ensure the quality of the welded workpiece and ensure the normal progress of the welding operation. More specifically, the cooling medium may be pumped into the first cooling channel 8 and the second cooling channel 9 by a water pump.

[0051] like Figures 1 to 4As shown, the automatic resistance welding clamp welding mechanism may further include a frame 10, a lifting seat 11, a lifting drive component 12 and a lateral drive component 13;

[0052] The lifting seat 11 is slidably connected to the frame 10 in the up-down direction;

[0053] The lifting driving component 12 is installed on the frame 10, connected to the lifting seat 11 and used to drive the lifting seat 11 to move up and down;

[0054] The first mounting seat 1 and the second mounting seat 2 are respectively connected to the lifting seat 11 by sliding along the left and right directions;

[0055] The transverse driving component 13 is installed on the lifting seat 11, connected to the first mounting seat 1 and used to drive the first mounting seat 1 and the second mounting seat 2 to move in the left and right direction on the lifting seat 11. Specifically, when the lifting driving component 12 drives the lifting seat 11 to move up and down, it can drive the first mounting seat 1 and the second mounting seat 2 to move up and down, and then drive the first clamping welding assembly 3 and the second clamping welding assembly 4 to move up and down to adapt to the height position of the workpiece. When the transverse driving component 13 drives the first mounting seat 1 to move in the left and right direction, the first mounting seat 1 can drive the second mounting seat 2 to move in the left and right direction through the clamping driving mechanism 5, and then drive the first clamping welding assembly 3 and the second clamping welding assembly 4 to move in the left and right direction to adapt to the left and right position of the workpiece. Then the clamping driving mechanism 5 drives the second mounting seat 2 to move toward the first mounting seat 1, so that the first clamping welding assembly 3 and the second clamping welding assembly 4 move toward each other to clamp the workpiece to be welded, and then the first clamping welding assembly 3 and the second clamping welding assembly 4 are powered on to weld the workpiece. In this embodiment, both the lifting drive component 12 and the lateral drive component 13 can be electric cylinders.

[0056] like Figure 1 , 3 As shown, the clamping drive mechanism 5 may include a clamping cylinder 14;

[0057] The cylinder body of the clamping cylinder 14 is connected to any one of the first mounting seat 1 and the second mounting seat 2;

[0058] The piston rod of the clamping cylinder 14 is connected to the other of the first mounting seat 1 and the second mounting seat 2;

[0059] The clamping cylinder 14 is used to drive the second mounting seat 2 to move toward or away from the first mounting seat 1 along the left-right direction, thereby causing the first clamping welding assembly 3 and the second clamping welding assembly 4 to move toward or away from each other to clamp or release the workpiece.

[0060] In this embodiment, the cylinder body of the clamping cylinder 14 is connected to the second mounting seat 2, and the piston rod of the clamping cylinder 14 is connected to the first mounting seat 1 through a connecting rod 15; wherein, one end of the connecting rod 15 is connected to the first mounting seat 1, and the other end of the connecting rod 15 is connected to the piston rod of the clamping cylinder 14, and the clamping cylinder 14 can drive the second mounting seat 2 to move toward or away from the first mounting seat 1 when it is extended or retracted.

[0061] like Figure 1 , 2 As shown, the automatic resistance welding clamping mechanism can also include an electrical proportional valve 16, which is connected to the clamping cylinder 14 and is used to control the air pressure in the clamping cylinder 14, thereby being able to control the output force of the clamping cylinder 14, that is, being able to control the clamping force between the first clamping assembly 3 and the second clamping assembly 4.

[0062] like Figures 3 to 5 As shown, the first clamping welding assembly 3 may include a first electrode 17, a first copper head 18 and a first base block 19, the first electrode 17 is connected to the first copper head 18, the first copper head 18 is connected to the first base block 19, and the first base block 19 is connected to the first mounting seat 1;

[0063] The second clamping welding assembly 4 may include a second electrode 20, a second copper head 21, and a second base block 22, wherein the second electrode 20 is connected to the second copper head 21, the second copper head 21 is connected to the second base block 22, and the second base block 22 is connected to the second mounting seat 2;

[0064] The first electrode 17 and the second electrode 20 are arranged opposite to each other and are used to clamp and release the workpiece;

[0065] The first temperature sensor 6 is connected to the first base block 19 and is used to detect the temperature of the first base block 19;

[0066] The second temperature sensor 7 is connected to the second base block 22 and is used to detect the temperature of the second base block 22;

[0067] The first cooling channel 8 is provided in the first base block 19;

[0068] The second cooling channel 9 is provided in the second base block 22. Specifically, the first copper head 18 and the second copper head 21 are respectively used to be connected to a power source, so that the first electrode 17 and the second electrode 20 can weld the workpiece when power is turned on. More specifically, the introduction of a cooling medium into the first cooling channel 8 can reduce the temperature of the first base block 19, and then the temperature of the first copper head 18 and the first electrode 17 can be reduced through heat transfer. Similarly, the introduction of a cooling medium into the second cooling channel 9 can reduce the temperature of the second base block 22, and then the temperature of the second copper head 21 and the second electrode 20 can be reduced through heat transfer.

[0069] like Figure 3 , 4 As shown, an insulating plate 23 is provided between the first base block 19 and the first mounting seat 1 and between the second base block 22 and the second mounting seat 2 respectively.

[0070] like Figure 4 As shown, a first mounting groove 24 is provided on the first base block 19, and a part of the first copper head 18 is embedded in the first mounting groove 24. The first mounting groove 24 can not only position the first copper head 18, but also increase the contact area between the first base block 19 and the first copper head 18, thereby accelerating the heat transfer between the first base block 19 and the first copper head 18;

[0071] A second mounting groove is provided on the second base block 22, and a part of the second copper head 21 is embedded in the second mounting groove. The second mounting groove can not only position the second copper head 21, but also increase the contact area between the second base block 22 and the second copper head 21, thereby accelerating the heat transfer between the second base block 22 and the second copper head 21.

[0072] like Figure 1 , 3 As shown, the automatic resistance welding clamp welding mechanism may further include a displacement detection component, and the displacement detection component may include a displacement sensor 25 and a detection rod 26;

[0073] The detection rod 26 is connected to any one of the first mounting seat 1 and the second mounting seat 2;

[0074] The displacement sensor 25 is connected to the other of the first mounting seat 1 and the second mounting seat 2 and is aligned with the detection rod 26; in the present embodiment, the detection rod 26 is connected to the first mounting seat 1, and the displacement sensor 25 is connected to the second mounting seat 2. The displacement sensor 25 can convert the distance between the first mounting seat 1 and the second mounting seat 2 by measuring the distance between the detection rod 26 into the distance between the first mounting seat 1 and the second mounting seat 2, and then into the distance between the first electrode 17 and the second electrode 20.

[0075] like Figure 1 As shown, the automatic resistance welding clamp welding mechanism may further include at least one blowing pipe 27 for blowing air toward the workpiece being welded so as to cool the workpiece being welded; in this embodiment, three blowing pipes 27 are provided.

[0076] In summary, first, the clamping drive mechanism 5 drives the second mounting seat 2 to move toward the first mounting seat 1 so that the first clamping welding assembly 3 and the second clamping welding assembly 4 move toward each other to clamp the workpiece to be welded, and then the first clamping welding assembly 3 and the second clamping welding assembly 4 are powered on so that current flows through the workpiece to generate resistance heat, and the first clamping welding assembly 3 and the second clamping welding assembly 4 can apply a clamping force to the workpiece, thereby performing resistance welding on the workpiece. During the welding process, the first temperature sensor 6 can detect the temperature of the first clamping welding assembly 3, and the second temperature sensor 7 can detect the temperature of the second clamping welding assembly 4. When the temperature of the first clamping welding assembly 3 and the second clamping welding assembly 4 is too high, a cooling medium is introduced into the first cooling channel 8 to cool the first clamping welding assembly 3, and a cooling medium is introduced into the second cooling channel 9 to cool the second clamping welding assembly 4, thereby preventing the first clamping welding assembly 3 and the second clamping welding assembly 4 from overheating, so as to ensure the quality of the welded workpiece and ensure the normal progress of the welding operation.

[0077] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic resistance welding clamp welding mechanism, characterized in that: It comprises a first mounting seat (1), a second mounting seat (2), a first clamping welding assembly (3), a second clamping welding assembly (4), a clamping drive mechanism (5), a first temperature sensor (6) and a second temperature sensor (7); The first clamping welding assembly (3) is connected to the first mounting seat (1), the second clamping welding assembly (4) is connected to the second mounting seat (2), and the first clamping welding assembly (3) and the second clamping welding assembly (4) are arranged opposite to each other; The clamping drive mechanism (5) is connected to the first mounting seat (1) and the second mounting seat (2) respectively, and the clamping drive mechanism (5) is used to drive the second mounting seat (2) to move toward the first mounting seat (1) so as to make the first clamping welding assembly (3) and the second clamping welding assembly (4) move toward each other to clamp the workpiece, and the clamping drive mechanism (5) is also used to drive the second mounting seat (2) to move away from the first mounting seat (1) so as to make the first clamping welding assembly (3) and the second clamping welding assembly (4) move away from each other to release the workpiece; The first temperature sensor (6) is connected to the first clamping welding component (3) and is used to detect the temperature of the first clamping welding component (3); The second temperature sensor (7) is connected to the second clamping welding component (4) and is used to detect the temperature of the second clamping welding component (4); The first clamping welding component (3) is provided with a first cooling channel (8) for passing a cooling medium to cool the first clamping welding component (3); The second clamping welding component (4) is provided with a second cooling channel (9) for passing a cooling medium to cool the second clamping welding component (4).

2. The automatic resistance welding clamp welding mechanism according to claim 1, characterized in that: It also includes a frame (10), a lifting seat (11), a lifting drive component (12) and a lateral drive component (13); The lifting seat (11) is slidably connected to the frame (10) in an up-down direction; The lifting drive component (12) is installed on the frame (10), connected to the lifting seat (11), and used to drive the lifting seat (11) to move up and down; The first mounting seat (1) and the second mounting seat (2) are respectively connected to the lifting seat (11) in a sliding manner in the left-right direction; The transverse driving component (13) is mounted on the lifting seat (11), connected to the first mounting seat (1), and used to drive the first mounting seat (1) and the second mounting seat (2) to move to their positions along the left-right direction on the lifting seat (11).

3. The automatic resistance welding clamp welding mechanism according to claim 2, characterized in that: The clamping drive mechanism (5) comprises a clamping cylinder (14); The cylinder body of the clamping cylinder (14) is connected to any one of the first mounting seat (1) and the second mounting seat (2); The piston rod of the clamping cylinder (14) is connected to the other of the first mounting seat (1) and the second mounting seat (2); The clamping cylinder (14) is used to drive the second mounting seat (2) to move in the left-right direction toward or away from the first mounting seat (1).

4. The automatic resistance welding clamp welding mechanism according to claim 3, characterized in that: The cylinder body of the clamping cylinder (14) is connected to the second mounting seat (2), and the piston rod of the clamping cylinder (14) is connected to the first mounting seat (1) via a connecting rod (15); wherein one end of the connecting rod (15) is connected to the first mounting seat (1), and the other end of the connecting rod (15) is connected to the piston rod of the clamping cylinder (14).

5. The automatic resistance welding clamp welding mechanism according to claim 3, characterized in that: It also comprises an electric proportional valve (16), which is connected to the clamping cylinder (14) and is used to control the air pressure in the clamping cylinder (14).

6. The automatic resistance welding clamp welding mechanism according to claim 1, characterized in that: The first clamping welding assembly (3) comprises a first electrode (17), a first copper head (18) and a first base block (19), the first electrode (17) is connected to the first copper head (18), the first copper head (18) is connected to the first base block (19), and the first base block (19) is connected to the first mounting seat (1); The second clamping welding assembly (4) comprises a second electrode (20), a second copper head (21) and a second base block (22); the second electrode (20) is connected to the second copper head (21), the second copper head (21) is connected to the second base block (22), and the second base block (22) is connected to the second mounting seat (2); The first electrode (17) and the second electrode (20) are arranged opposite to each other and are used to clamp and release the workpiece; The first temperature sensor (6) is connected to the first base block (19) and is used to detect the temperature of the first base block (19); The second temperature sensor (7) is connected to the second base block (22) and is used to detect the temperature of the second base block (22); The first cooling channel (8) is arranged in the first base block (19); The second cooling channel (9) is arranged in the second base block (22).

7. The automatic resistance welding clamp welding mechanism according to claim 6, characterized in that: Insulation plates (23) are respectively provided between the first base block (19) and the first mounting seat (1), and between the second base block (22) and the second mounting seat (2).

8. The automatic resistance welding clamp welding mechanism according to claim 6, characterized in that: The first base block (19) is provided with a first mounting slot (24), and a portion of the first copper head (18) is embedded in the first mounting slot (24); The second base block (22) is provided with a second mounting slot, and a portion of the second copper head (21) is embedded in the second mounting slot.

9. The automatic resistance welding clamp welding mechanism according to claim 1, characterized in that: It also includes a displacement detection component, which includes a displacement sensor (25) and a detection rod (26); The detection rod (26) is connected to any one of the first mounting seat (1) and the second mounting seat (2); The displacement sensor (25) is connected to the other of the first mounting seat (1) and the second mounting seat (2) and is aligned with the detection rod (26).

10. The automatic resistance welding clamp welding mechanism according to claim 1, characterized in that: It also includes at least one blowing pipe (27) for blowing air toward the workpieces being welded.

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