Fixed heating body welding head of spot welding machine with uniform heat energy distribution

Abstract

The invention discloses a spot welding machine fixed heating body welding head with uniform heat energy distribution, and particularly relates to the technical field of welding heads, the spot welding machine fixed heating body welding head comprises a shell, a heating head part, a molybdenum-based grinding belt, a wireless controller and a soaking self-maintenance assembly; the soaking self-maintenance assembly comprises a groove strip, a first micro electric cylinder, a pressure sensor, a push block, a linkage strip, a linkage shaft, a sleeve strip, a hinge shaft, a sleeve connection pressing strip and a corner pressing plate. Through the soaking self-maintenance assembly, the sleeve strip and the sleeving pressing strip can uniformly extrude the special-shaped corner position of the molybdenum-based grinding belt in a hinged linkage mode, self-maintenance treatment is achieved, the function that heat energy is uniformly distributed at different corner positions of a heating head is recovered, and the qualified rate of welded products of a welding head is greatly increased; therefore, the problems that self-maintenance is difficult, the heat energy distribution uniformity function of different corner positions of the welding head is quickly recovered, and the qualification rate of welding products of the welding head is remarkably reduced are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of welding heads. More specifically, the present invention relates to a fixed heating element welding head for a spot welder with uniform heat energy distribution. Background Art

[0002] A spot welder with uniform heat energy distribution mainly relies on a fixed heating element welding head. During the welding process, the heating element welding head mainly improves the welding quality. Since the heat energy is evenly distributed, there is no time difference in heat conduction on the welding plane, and the heat during the welding process can act more evenly on the welding area, thus ensuring the stability of the welding quality.

[0003] In the existing publicly disclosed technical literature, the patent with the patent publication number CN221538384U discloses a temperature-controlled welding head that is convenient for maintenance. In this technology, a through hole is provided between the vertical plate and the convex block. A fixed block is installed at the right end of the through hole. A plug rod is slidably connected between the convex block and the fixed block. A spring is fixedly connected between the plug rod and the fixed block. The removal and fixation of the welding head are very convenient. When the welding head needs to be repaired, it is convenient for the staff to remove it for repair, and the operation is convenient. However, this technology still has the following defects.

[0004] During the high-temperature welding process of the fixed heating element welding head of the spot welder, due to the high-temperature oxidation and impurity adsorption on the surface of the welding head, an uneven oxide film layer and impurity accumulation layer will be formed. These heterogeneous layers change the thermal conductivity and resistance characteristics of the welding head surface, resulting in an imbalance in the current distribution and blocked heat conduction during subsequent heating, causing uneven heating in the welding head area. The uneven heat reception directly affects the stability of the welding energy transfer, leading to fluctuations in the size of the welding spot nugget, false soldering, or overburning defects, and it is difficult to self-repair to quickly restore the function of uniform heat energy distribution at different corner positions of the welding head, significantly reducing the qualified rate of the products welded by the welding head. Summary of the Invention

[0005] To overcome the above-mentioned defects of the prior art, the present invention provides the following technical solution: A fixed heating element welding head for a spot welder with uniform heat energy distribution, including a housing, a heating head, a molybdenum-based grinding belt, and a wireless controller. The heating head rotates inside the housing. The molybdenum-based grinding belt slides on the outer wall of the heating head. A heat equalization and self-repairing component is provided on one side of the molybdenum-based grinding belt. The heat equalization and self-repairing component includes a groove strip fixedly arranged on one side of the molybdenum-based grinding belt. A first micro-electric cylinder is fixedly installed on the inner wall of the groove strip. The output end of the first micro-electric cylinder is connected to a pressure sensor. One end of the pressure sensor is fixedly installed with a push block. A linkage bar is fixedly connected to one side of the push block. A linkage shaft is provided on one side of the first micro-electric cylinder. A sleeve strip is rotatably connected to the outer wall of the linkage shaft. A hinge shaft is fixedly connected to the inner wall of the sleeve strip. A socket pressing strip is rotatably connected to the outer wall of the hinge shaft. A corner pressing plate is fixedly installed at one end of the socket pressing strip.

[0006] Preferably, a fixed connection is provided between the sensing end of the pressure sensor and the output end of the first micro cylinder, and a sliding connection is provided between the push block and the groove bar. A fixed connection is provided between the linkage shaft and the groove bar, and fixed connections are provided between both the sleeve bar and the socket pressing bar and the molybdenum-based abrasive belt, and between the corner pressing plate and the molybdenum-based abrasive belt. A curved elastic sheet is fixedly connected between the corner pressing plate and the socket pressing bar, and the cross-sectional shape of the curved elastic sheet is circular arc-shaped; both the first micro cylinder and the pressure sensor are electrically connected to the wireless controller.

[0007] When the present technology is in use, the first micro cylinder pushes the pressure sensor, the push block causes the linkage bar to move leftward, the corner pressing plate squeezes the curved elastic sheet, and the curved elastic sheet drives the socket pressing bar to be stressed and deformed. The socket pressing bar squeezes the curved elastic sheet, the curved elastic sheet squeezes the socket pressing bar, the hinge shaft squeezes the sleeve bar, and the sleeve bar and the socket pressing bar can squeeze the special-shaped corner position of the molybdenum-based abrasive belt through an articulated linkage method.

[0008] Preferably, a uniform detection component is provided on one side of the linkage bar; the uniform detection component includes an L-shaped groove rail fixedly provided on one side of the linkage bar, a second micro cylinder fixedly installed on one side of the L-shaped groove rail, an L-shaped bar fixedly connected to the output end of the second micro cylinder, and a sliding frame fixedly connected to the top end of the L-shaped bar. A sliding column is slidably connected to the inner wall of the sliding frame, and a linkage groove bar is fixedly installed at the top end of the sliding column. An infrared temperature sensor is fixedly connected to one end of the linkage groove bar, and a guide rail bar is fixedly connected to one side of the inner wall of the L-shaped groove rail. The guide rail bar is slidably connected to the sliding column; both the wireless controller and the infrared temperature sensor are electrically connected to the second micro cylinder. Both the L-shaped groove rail and the second micro cylinder are slidably connected to the sliding frame, and a gap is provided between the linkage groove bar and the sliding frame. The sliding column is slidably connected to the L-shaped groove rail, and both the inner wall of the L-shaped groove rail and the outer wall of the sliding column are smooth surfaces.

[0009] When the present technology is in use, the second micro cylinder is started to push the L-shaped bar to move leftward, the sliding frame drives the sliding column to move leftward, the sliding column slides on the inner wall of the L-shaped groove rail, and at the same time the sliding column realizes a V-shaped path guiding movement along the outer wall of the guide rail bar. The sliding column drives the linkage groove bar to move along the V-shaped path, and the linkage groove bar drives the infrared temperature sensor to move along the V-shaped path. The infrared temperature sensor moves along the end of the heating head to the corner position for temperature detection.

[0010] Preferably, a connecting wire is fixedly installed at one end of the shell, a mounting terminal is fixedly connected to one end of the connecting wire, and the wireless controller is fixed to the other end of the connecting wire, and the wireless controller is fixedly connected to the shell; a docking wire harness is fixedly connected to one side of the wireless controller, and the docking wire harness is fixedly connected to the heating head. An insulating swivel is rotatably connected to one side of the inner wall of the shell, a large gear is fixedly connected to the outer wall of the insulating swivel, and a small gear is meshingly connected to the outer wall of the large gear, a reduction motor is provided on one side of the small gear, and the outer wall of the output end of the reduction motor is fixedly connected to the small gear; a rotating motor is installed at one end of the groove bar, the rotating motor is fixedly connected to the shell, the output end of the rotating motor is fixedly connected to the groove bar, and the rotating motor is electrically connected to the wireless controller. The vertical cross-section of the insulating swivel is circular, and the reduction motor is fixedly connected to the shell.

[0011] When this technology is in use, the reduction motor drives the small gear to rotate forward, the small gear drives the large gear to rotate counterclockwise, the insulating swivel drives the heating head to rotate counterclockwise for one circle, and the corner heterogeneous layer on the outer wall of the heating head contacts the molybdenum-based grinding belt for uniform force treatment. The reduction motor drives the small gear to rotate counterclockwise, the large gear drives the insulating swivel to rotate forward for one circle, the heating head contacts the molybdenum-based grinding belt, and the heterogeneous layer at the corner of the outer wall of the heating head is removed.

[0012] Technical effects and advantages of the present invention: The present invention uses a heat-equalizing self-repairing component. The first micro-electric cylinder pushes the pressure sensor, and the push block causes the linkage bar to move left. The corner pressure plate squeezes the arc-shaped spring piece, and the arc-shaped spring piece is squeezed in an arc shape. The corner pressure plate drives the heating head to fit on the outer wall of the heating head, and the arc-shaped spring piece squeezes the sleeve pressure strip. The sleeve strip rotates and squeezes on the linkage shaft. The sleeve strip and the sleeve pressure strip can evenly squeeze the special-shaped corner position of the molybdenum-based grinding belt through an articulated linkage. The heating head can contact the molybdenum-based grinding belt by itself to remove the heterogeneous layer at the corner, realize self-repair processing, and restore the uniform heat energy distribution function at different corner positions of the heating head, which greatly improves the qualified rate of welding products of the welding head.

[0013] The present invention adopts a uniform detection component. After the heterogeneous layer at the corner of the heating head is removed, the second micro-electric cylinder is started to push the L-shaped bar to move left, and the sliding column slides on the inner wall of the L-shaped groove rail. The sliding column realizes V-shaped path guided movement along the outer wall of the guide rail bar. The sliding column drives the linkage groove bar to move along the V-shaped path. The infrared temperature sensor moves along the end of the heating head to the corner position for temperature detection, ensuring that the corner position of the heating head restores the function of uniform heat energy distribution.

[0014] The present invention uses a reduction motor to drive the pinion to rotate forward, and the large gear drives the insulating rotating ring to rotate backward for one circle, so that the corner heterogeneous layer on the outer wall of the heating head is evenly stressed in contact with the molybdenum-based abrasive belt. The reduction motor drives the pinion to rotate backward, and the insulating rotating ring drives the heating head to rotate forward for one circle, and the heterogeneous layer at the corner position on the outer wall of the heating head is removed by peeling, realizing self-repair processing.

[0015] In summary, the molybdenum-based abrasive belt can be accurately pressed and fitted on the heterogeneous layer at the special-shaped corner position of the heating head, realizing self-repair of uniform stress and peeling removal of the heterogeneous layer, and restoring the function of uniform heat reception. Then, an infrared temperature sensor is used to detect the temperature of the heating head along the V-shaped path to ensure that the special-shaped corner position restores the function of uniform heat reception, greatly improving the qualification rate of the welded products of the welding head. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the fixed heating body welding head of the spot welder with uniform heat energy distribution according to the present invention.

[0017] Figure 2 It is a schematic diagram of the bottom view structure of the fixed heating body welding head of the spot welder with uniform heat energy distribution according to the present invention.

[0018] Figure 3 It is a schematic diagram of a partial cross-sectional structure of the connection between the housing and the heating head of the present invention.

[0019] Figure 4 For the present invention Figure 3 The enlarged structure schematic diagram at position A.

[0020] Figure 5 It is a schematic diagram of a partial cross-sectional structure of the connection between the socket pressing strip and the corner pressing plate of the present invention.

[0021] Figure 6 It is a schematic diagram of a partial front view structure of the uniform detection component of the present invention.

[0022] Figure 7 It is a schematic diagram of a partial cross-sectional structure of the connection between the L-shaped strip and the sliding frame of the present invention.

[0023] Figure 8 It is a schematic diagram of a partial cross-sectional structure of the connection between the guide rail strip and the sliding column of the present invention.

[0024] Figure 9 It is a schematic diagram of a partial vertical cross-sectional structure of the connection between the housing and the connecting wire of the present invention.

[0025] The reference numerals are: 1, housing; 2, heating head; 3, molybdenum-based abrasive belt; 4, groove bar; 5, pressure sensor; 6, push block; 7, linkage bar; 8, first micro electric cylinder; 9, linkage shaft; 10, sleeve bar; 11, hinge shaft; 12, socket pressing bar; 13, corner pressing plate; 14, arc-shaped elastic piece; 15, L-shaped groove rail; 16, second micro electric cylinder; 17, L-shaped bar; 18, sliding frame; 19, sliding column; 20, linkage groove bar; 21, infrared temperature sensor; 22, guide rail bar; 23, connecting wire; 24, installation terminal; 25, wireless controller; 26, docking wire harness; 27, insulating rotating ring; 28, large gear; 29, small gear; 30, reduction motor; 31, rotating motor. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] As Figure 1 - Figure 9 Shown is a fixed heating element welding head of a spot welder with uniform heat energy distribution. A heat equalizing self-repairing component is provided on the fixed heating element welding head with uniform heat energy distribution. The setting of the heat equalizing self-repairing component enables the heating head 2 to come into contact with the molybdenum-based abrasive belt 3 by itself to remove the corner heterogeneous layer, realizing self-repairing treatment, enabling the heating head 2 to restore the function of uniform heat energy distribution at different corner positions, greatly improving the qualification rate of the welded products of the welding head. The specific structural setting of the heat equalizing self-repairing component is as follows.

[0028] In this embodiment, as Figure 1 - Figure 5 Shown, the heating head 2 rotates inside the housing 1, the molybdenum-based abrasive belt 3 slides on the outer wall of the heating head 2, and a heat equalizing self-repairing component is provided on one side of the molybdenum-based abrasive belt 3; the heat equalizing self-repairing component includes a groove bar 4 fixedly arranged on one side of the molybdenum-based abrasive belt 3, and a first micro electric cylinder 8 is fixedly installed on the inner wall of the groove bar 4. The output end of the first micro electric cylinder 8 is connected with a pressure sensor 5, one end of the pressure sensor 5 is fixedly installed with a push block 6, and a linkage bar 7 is fixedly connected to one side of the push block 6.

[0029] On one side of the first micro-cylinder 8, there is a linkage shaft 9. A sleeve strip 10 is rotatably connected to the outer wall of the linkage shaft 9. An articulated shaft 11 is fixedly connected to the inner wall of the sleeve strip 10. A socket pressing strip 12 is rotatably connected to the outer wall of the articulated shaft 11. A corner pressing plate 13 is fixedly installed at one end of the socket pressing strip 12. The sensing end of the pressure sensor 5 is fixedly connected to the output end of the first micro-cylinder 8. The push block 6 is slidably connected to the groove strip 4. The linkage shaft 9 is fixedly connected to the groove strip 4. The sleeve strip 10 and the socket pressing strip 12 are both fixedly connected to the molybdenum-based grinding belt 3. The corner pressing plate 13 is fixedly connected to the molybdenum-based grinding belt 3.

[0030] In this embodiment, as Figure 5 shown, an arc-shaped elastic sheet 14 is fixedly connected between the corner pressing plate 13 and the socket pressing strip 12. The cross-sectional shape of the arc-shaped elastic sheet 14 is circular arc-shaped; both the first micro-cylinder 8 and the pressure sensor 5 are electrically connected to the wireless controller 25, so as to facilitate the corner pressing plate 13 to squeeze the arc-shaped elastic sheet 14, and the arc-shaped elastic sheet 14 is subjected to arc-shaped force extrusion, so that the socket pressing strip 12 is subjected to force extrusion to realize the deformation operation.

[0031] In this embodiment, as Figure 5 - Figure 8 shown, a uniform detection component is provided on one side of the linkage bar 7; the uniform detection component includes an L-shaped groove rail 15 fixedly arranged on one side of the linkage bar 7. A second micro-cylinder 16 is fixedly installed on one side of the L-shaped groove rail 15. The output end of the second micro-cylinder 16 is fixedly connected to an L-shaped bar 17, and the top end of the L-shaped bar 17 is fixedly connected to a sliding frame 18. A sliding column 19 is slidably connected to the inner wall of the sliding frame 18, and an infrared temperature sensor 21 is fixedly installed at the top end of the sliding column 19. One side of the inner wall of the L-shaped groove rail 15 is fixedly connected to a guide rail bar 22. The guide rail bar 22 is slidably connected to the sliding column 19; both the wireless controller 25 and the infrared temperature sensor 21 are electrically connected to the second micro-cylinder 16. The L-shaped groove rail 15 and the second micro-cylinder 16 are both slidably connected to the sliding frame 18, and there is a gap between the linkage groove bar 20 and the sliding frame 18. The sliding column 19 is slidably connected to the L-shaped groove rail 15, and both the inner wall of the L-shaped groove rail 15 and the outer wall of the sliding column 19 are smooth surfaces.

[0032] In this embodiment, as Figure 1 - Figure 9 shown, a connecting wire 23 is fixedly installed at one end of the housing 1. One end of the connecting wire 23 is fixedly connected to a mounting terminal 24, and the wireless controller 25 is fixed to the other end of the connecting wire 23. The wireless controller 25 is fixedly connected to the housing 1; a docking wire harness 26 is fixedly connected to one side of the wireless controller 25, and the docking wire harness 26 is fixedly connected to the heating head 2.

[0033] On one side of the inner wall of the housing 1, there is a rotatably connected insulating rotating ring 27. On the outer wall of the insulating rotating ring 27, a large gear 28 is fixedly connected. And on the outer wall of the large gear 28, there is an engaged and driven small gear 29. On one side of the small gear 29, there is a reduction motor 30. And between the outer wall of the output end of the reduction motor 30 and the small gear 29, there is a fixed connection. At one end of the groove bar 4, a rotating motor 31 is installed. The rotating motor 31 is fixedly connected with the housing 1. Between the output end of the rotating motor 31 and the groove bar 4, there is a fixed connection. The rotating motor 31 is electrically connected with the wireless controller 25. The vertical cross-sectional shape of the insulating rotating ring 27 is circular. The reduction motor 30 is fixedly connected with the housing 1.

[0034] The working principle of the fixed heating element welding head of the spot welder with uniform heat energy distribution in the present invention is as follows: Step 1: During the heterogeneous layer treatment, when heterogeneous layers appear at each corner position on the outer wall of the heating head 2, the welding power supply position is connected through the installation terminal 24. The housing 1 is fixed at the welding position of the spot welder. The installation terminal 24 supplies power to the connecting wire 23. The connecting wire 23 supplies power to the wireless controller 25. The wireless controller 25 starts the first micro cylinder 8. The first micro cylinder 8 pushes the pressure sensor 5. The pressure sensor 5 drives the push block 6 to move leftward. The push block 6 makes the linkage bar 7 move leftward. The linkage bar 7 drives the corner pressing plate 13 to move leftward and squeeze. And the corner pressing plate 13 squeezes the arc-shaped elastic piece 14. The arc-shaped elastic piece 14 undergoes an arc-shaped force extrusion. The arc-shaped elastic piece 14 drives the socket pressing bar 12 to be forcefully extruded to achieve a deformation operation. The corner pressing plate 13 drives the heating head 2 to fit on the outer wall of the heating head 2. At the same time, the socket pressing bar 12 squeezes the arc-shaped elastic piece 14. The arc-shaped elastic piece 14 generates deformation. At the same time, the arc-shaped elastic piece 14 squeezes the socket pressing bar 12. The socket pressing bar 12 squeezes the hinge shaft 11. The hinge shaft 11 squeezes the sleeve bar 10. The sleeve bar 10 rotates and squeezes on the linkage shaft 9. Thus, the sleeve bar 10 and the socket pressing bar 12 can squeeze the special-shaped corner position of the molybdenum-based grinding belt 3 through an articulated linkage method. Thus, the molybdenum-based grinding belt 3 squeezes and fits the special-shaped corner position of the heating head 2. When the pressure value sensed by the pressure sensor 5 is the same as the pressure value set by the wireless controller 25, the first micro cylinder 8 is turned off through the wireless controller 25.

[0035] Step 2: During the separation process, the deceleration motor 30 is started by the wireless controller 25. The deceleration motor 30 drives the pinion 29 to rotate forward, the pinion 29 drives the large gear 28 to rotate in reverse, the large gear 28 drives the insulating rotating ring 27 to rotate in reverse for one circle, and the insulating rotating ring 27 drives the heating head 2 to rotate in reverse for one circle, so that the corner heterogeneous layer on the outer wall of the heating head 2 is uniformly stressed when contacting the molybdenum-based abrasive belt 3. Then the deceleration motor 30 drives the pinion 29 to rotate in reverse, the pinion 29 drives the large gear 28 to rotate forward, the large gear 28 drives the insulating rotating ring 27 to rotate forward for one circle, the insulating rotating ring 27 drives the heating head 2 to rotate forward for one circle, the heating head 2 contacts the molybdenum-based abrasive belt 3, and the heterogeneous layer at the corner position of the outer wall of the heating head 2 is removed, realizing self-repair and restoring the uniform heating function of the heating head 2.

[0036] Step 3: During the uniform detection, the heating head 2 is powered by the docking wire harness 26 to generate heat. After heating for five minutes, the wireless controller 25 turns off the heating head 2, and at the same time, the wireless controller 25 immediately starts the second micro cylinder 16 to push the L-shaped bar 17 to move leftward. The L-shaped bar 17 drives the sliding frame 18 to move leftward, the sliding frame 18 drives the sliding column 19 to move leftward. The sliding column 19 slides on the inner wall of the L-shaped groove rail 15, and at the same time, the sliding column 19 moves along the outer wall of the guide rail bar 22 in a V-shaped path. And the sliding column 19 drives the linkage groove bar 20 to move along the V-shaped path, the sliding column 19 drives the linkage groove bar 20 to move along the V-shaped path, and the linkage groove bar 20 drives the infrared temperature sensor 21 to move along the V-shaped path. In this way, the infrared temperature sensor 21 moves along the end of the heating head 2 to the corner position for temperature detection. When the temperature value sensed by the infrared temperature sensor 21 is within the range set by the wireless controller 25, the heterogeneous corner position on the outer wall of the heating head 2 restores the uniform heating function.

[0037] Step 4: During the reset welding, the rotating motor 31 drives the groove bar 4 to rotate clockwise. The groove bar 4 drives the molybdenum-based abrasive belt 3 to rotate clockwise, and the groove bar 4 drives the first micro cylinder 8 to rotate clockwise. The first micro cylinder 8 drives the pressure sensor 5 to make the push block 6 rotate clockwise, the push block 6 drives the linkage bar 7 to rotate clockwise, and the linkage bar 7 drives the molybdenum-based abrasive belt 3 to separate from the heating head 2. In this way, the molybdenum-based abrasive belt 3 no longer contacts the heating head 2, so the molybdenum-based abrasive belt 3 rotates to the side position of the heating head 2, and the molybdenum-based abrasive belt 3 does not affect the normal welding of the heating head 2. Then the heating head 2 is heated, so that the end of the heating head 2 directly heats and welds the object.

[0038] The content not described in detail in the specification belongs to the prior art well-known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited. Conventional equipment can be used. In this technical solution, since the electrical control components not mentioned belong to the prior art, they are not shown in the figure and will not be described here.

[0039] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A fixed heating element welding head for a spot welder with uniform heat energy distribution, comprising a housing (1), a heating head (2), a molybdenum-based abrasive belt (3), and a wireless controller (25), characterized in that: The heating head (2) rotates inside the housing (1), the molybdenum-based abrasive belt (3) slides on the outer wall of the heating head (2), and a heat equalizing self-repairing component is provided on one side of the molybdenum-based abrasive belt (3); The heat equalizing self-repairing component includes a groove bar (4) fixedly arranged on one side of the molybdenum-based abrasive belt (3), and a first micro-electric cylinder (8) is fixedly installed on the inner wall of the groove bar (4). The output end of the first micro-electric cylinder (8) is connected to a pressure sensor (5). One end of the pressure sensor (5) is fixedly installed with a push block (6), and a linkage bar (7) is fixedly connected to one side of the push block (6); A linkage shaft (9) is provided on one side of the first micro-electric cylinder (8). A sleeve bar (10) is rotatably connected to the outer wall of the linkage shaft (9). An articulated shaft (11) is fixedly connected to the inner wall of the sleeve bar (10). A socket pressing bar (12) is rotatably connected to the outer wall of the articulated shaft (11). A corner pressing plate (13) is fixedly installed at one end of the socket pressing bar (12).

2. The fixed heating element welding head of the spot welder with uniform heat energy distribution according to claim 1, characterized in that: A fixed connection is provided between the sensing end of the pressure sensor (5) and the output end of the first micro-electric cylinder (8), and a sliding connection is provided between the push block (6) and the groove bar (4).

3. The fixed heating element welding head of the spot welder with uniform heat energy distribution according to claim 1, characterized in that: A fixed connection is provided between the linkage shaft (9) and the groove bar (4). Both the sleeve bar (10) and the socket pressing bar (12) are fixedly connected to the molybdenum-based abrasive belt (3), and the corner pressing plate (13) is fixedly connected to the molybdenum-based abrasive belt (3).

4. The fixed heating element welding head of the spot welder with uniform heat energy distribution according to claim 1, characterized in that: An arc-shaped elastic piece (14) is fixedly connected between the corner pressing plate (13) and the socket pressing bar (12), and the cross-sectional shape of the arc-shaped elastic piece (14) is arc-shaped; Both the first micro-electric cylinder (8) and the pressure sensor (5) are electrically connected to the wireless controller (25).

5. The fixed heating element welding head of the spot welder with uniform heat energy distribution according to claim 1, characterized in that: A uniform detection component is provided on one side of the linkage bar (7); The uniform detection component includes an L-shaped groove rail (15) fixedly arranged on one side of the linkage bar (7). A second micro-electric cylinder (16) is fixedly installed on one side of the L-shaped groove rail (15). The output end of the second micro-electric cylinder (16) is fixedly connected to an L-shaped bar (17). The top end of the L-shaped bar (17) is fixedly connected to a sliding frame (18). A sliding column (19) is slidably connected to the inner wall of the sliding frame (18). The top end of the sliding column (19) is fixedly installed with a linkage groove bar (20). An infrared temperature sensor (21) is fixedly connected to one end of the linkage groove bar (20). A guide rail bar (22) is fixedly connected to one side of the inner wall of the L-shaped groove rail (15). A sliding connection is provided between the guide rail bar (22) and the sliding column (19); Both the wireless controller (25) and the infrared temperature sensor (21) are electrically connected to the second micro-electric cylinder (16).

6. The fixed heating element welding head of the spot welder with uniform heat energy distribution according to claim 5, characterized in that: Both the L-shaped groove rail (15) and the second micro-electric cylinder (16) are slidably connected to the sliding frame (18), and a gap is provided between the linkage groove bar (20) and the sliding frame (18).

7. The fixed heating element welding head of the spot welder with uniform heat energy distribution according to claim 5, characterized in that: A sliding connection is provided between the sliding column (19) and the L-shaped groove rail (15), and both the inner wall of the L-shaped groove rail (15) and the outer wall of the sliding column (19) are smooth surfaces.

8. The fixed heating element welding head of the spot welder with uniform heat energy distribution according to claim 1, wherein: A connecting wire (23) is fixedly mounted on one end of the housing (1), a mounting terminal (24) is fixedly connected to one end of the connecting wire (23), and the wireless controller (25) is fixedly mounted on the other end of the connecting wire (23), and the wireless controller (25) is fixedly connected to the housing (1); A docking harness (26) is fixedly connected to one side of the wireless controller (25), and the docking harness (26) is fixedly connected to the heating head (2).

9. The fixed heating element welding head of the spot welder with uniform heat energy distribution according to claim 1, characterized in that: An insulating swivel (27) is rotatably connected to one side of the inner wall of the housing (1), a large gear (28) is fixedly connected to the outer wall of the insulating swivel (27), and a small gear (29) is meshingly connected to the outer wall of the large gear (28), a reduction motor (30) is provided on one side of the small gear (29), and the outer wall of the output end of the reduction motor (30) is fixedly connected to the small gear (29); A rotary motor (31) is installed at one end of the slot (4); the rotary motor (31) is fixedly connected to the housing (1); an output end of the rotary motor (31) is fixedly connected to the slot (4); and the rotary motor (31) is electrically connected to the wireless controller (25).

10. The fixed heating element welding head of the spot welder with uniform heat energy distribution according to claim 9, characterized in that: The insulating rotating ring (27) has a vertical cross-section in the shape of a circular ring, and the reduction motor (30) is fixedly connected to the housing (1).

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