A spot welding device for automobile parts with anti-slip and anti-error functions

Abstract

The present invention discloses an automobile parts spot welding device with anti-skid and anti-error functions, which relates to the technical field of automobile parts spot welding, and comprises: a layer plate, the bottom of which is fixedly connected with a load-bearing frame, and a positioning component, wherein the positioning component comprises a mounting frame. When two automobile parts need to be welded, the automobile parts spot welding device with anti-skid and anti-error functions first slides the two parts to be welded into the inside of the two slides through the feed ports of the two slides, respectively, and starts the two corresponding hydraulic rods, so that the two automobile parts are sleeved on the top of the two limit sleeves, and when the two slides are moved to be in tight contact with the inner walls of the two slides, the two automobile parts are in tight contact, and the first forward and reverse motor is started to move the welding head to the position where welding is required, and the second electric push rod is started to drive the welding head to weld the two automobile parts.

Description

Technical Field

[0001] The invention relates to the technical field of spot welding of automobile parts, in particular to an automobile part spot welding device with anti-slip and anti-error functions. Background Art

[0002] The spot welding device for automobile parts is a device used for spot welding operations in the automobile manufacturing process. In automobile manufacturing, many body parts and structures need to be connected and fixed by spot welding technology to ensure the structural strength and stability of the body. The spot welding device for automobile parts is usually composed of a welding power source, a welding gun, a workpiece clamping device, a welding control system and other parts. Its main function is to apply local high current and high temperature between the parts to be welded, so that they melt instantly and connect together.

[0003] Currently, during the welding process of automobile parts, two automobile parts are generally fixed together by clamping, which does not have the function of anti-slip and anti-misalignment. Some automobile parts are made of plastic and are soft in texture, which are not suitable for using a large clamping force. Automobile parts will be subjected to vibration and impact during the spot welding process, which may easily cause the clamping position to shift or misalign, thereby resulting in unqualified welding of automobile parts.

[0004] Therefore, we propose a spot welding device for automobile parts with anti-skid and anti-error functions to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide an automobile parts spot welding device with anti-slip and anti-misalignment functions to solve the problem of welding misalignment that is prone to occur during the spot welding of automobile parts mentioned in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a spot welding device for automobile parts with anti-slip and anti-error functions, comprising: a layer plate, a load-bearing frame fixedly connected to the bottom of the layer plate, a positioning component, the positioning component comprising a mounting frame, a first electric push rod is arranged on the inner top surface of the mounting frame, a pressing plate is fixed to the bottom end of the first electric push rod, two mounting plates are fixed on the opposite outer surfaces of the layer plate, hydraulic rods are arranged on the inner walls of the four mounting plates, baffles are fixedly connected at one end of the four hydraulic rods, mounting rods are fixed on one side of the load-bearing frame relative to the inner wall, electric telescopic rods are arranged on the outer surfaces of the two mounting rods, sliders are fixed at one end of the two electric telescopic rods, cylinders are arranged on the tops of the two sliders, sliding rods are fixed on the tops of the two cylinders, and limiting sleeves are fixed on the tops of the two sliding rods.

[0007] Preferably, two limiting tubes are fixed between the other side of the load-bearing frame and the inner wall, and the inner parts of the two sliding blocks are slidably connected to the outer surfaces of the two limiting tubes respectively.

[0008] Preferably, the bottom of the mounting frame is fixedly connected to the top of the layer plate, two slots are respectively provided on opposite outer surfaces of the layer plate, and the outer surfaces of the four baffles are respectively slidably connected to the inside of the four slots.

[0009] Preferably, two slide grooves are provided on the top of the layer plate, two slideways are fixed on the outer surface of the layer plate, a spot welding assembly is arranged near the center of the top of the layer plate, and the spot welding assembly includes a fixing frame.

[0010] Preferably, the bottom of the fixing frame is fixedly connected to the top of the layer plate, a support block is fixed to the outer surface of the fixing frame, and a first forward and reverse motor is arranged on the top of the support block.

[0011] Preferably, the output shaft of the first forward and reverse motor is fixedly connected to a ball screw, and two ends of the ball screw are movably penetrated to opposite exteriors of the fixing frame, and a second electric push rod is arranged on the outer surface of the ball screw.

[0012] Preferably, a lifting block is fixed to the bottom end of the second electric push rod, a welding head is arranged at the bottom of the lifting block, a camera is arranged on the outer surface of the lifting block, and a connecting groove is arranged on the outer surface of the fixing frame.

[0013] Preferably, a cooling component is arranged inside the connecting groove, and the cooling component includes a load-bearing block, the outer surface of the load-bearing block is fixedly connected to the outer surface of the fixing frame, and a second forward and reverse motor is arranged on the top of the load-bearing block.

[0014] Preferably, the output shaft of the second forward and reverse motor is fixedly connected with a movable tube, and both ends of the movable tube are movable through the relative inner walls of the connecting groove to the outside, and a connecting barrel is fixedly sleeved on the outer surface of the movable tube.

[0015] Preferably, a reinforcing rod is fixed to one end of the connecting barrel, a blower is arranged on the outer surface of the reinforcing rod, a supporting rod is fixedly installed on the inner wall of the connecting barrel, and a semiconductor refrigeration plate is arranged on the outer surface of the supporting rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. When two automobile parts need to be welded, first slide the two parts to be welded into the interior of the two slides through the feed ports of the two slides, start the corresponding two hydraulic rods, so that the two automobile parts are sleeved on the top of the two limit sleeves, and when the two slide rods are moved to be in tight contact with the inner walls of the two slides, the two automobile parts are in tight contact, start the first forward and reverse motor, move the welding head to the position where welding is required, start the second electric push rod, and drive the welding head to weld the two automobile parts, thereby solving the problem of welding misalignment that is easy to occur in the process of spot welding of automobile parts in the prior art.

[0018] 2. When the two auto parts are sleeved on the top of the two limit sleeves, the two first electric push rods are started respectively to extend, and the two pressing plates are driven to move downward respectively to press the two auto parts until the two auto parts are completely sleeved on the outer surfaces of the two limit sleeves. By pressing the auto parts, the position of the two auto parts during welding is made more accurate.

[0019] 3. After the welding of automobile parts is completed, start the second forward and reverse motor. When the position of the semiconductor refrigeration plate in the connecting barrel is rotated to the corresponding position of the automobile parts, start the blower and the semiconductor refrigeration plate to deliver cold air to the surface of the automobile parts, cool down the spot welding position of the automobile parts, and thus increase the fixing rate of the spot welding hazards of the automobile parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front perspective view of a spot welding device for automobile parts with anti-slip and anti-error functions according to the present invention;

[0021] Figure 2 A three-dimensional diagram of the slideway portion of a spot welding device for automotive parts with anti-slip and anti-error functions according to the present invention;

[0022] Figure 3 A three-dimensional diagram of a load-bearing frame portion of an automobile parts spot welding device with anti-slip and anti-error functions according to the present invention;

[0023] Figure 4 For the present invention Figure 3 Zoom in on A in the middle;

[0024] Figure 5 It is a three-dimensional diagram of a ball screw rod portion of a spot welding device for automotive parts with anti-slip and anti-error functions according to the present invention;

[0025] Figure 6 A three-dimensional diagram of a fixing frame portion of a spot welding device for automotive parts with anti-slip and anti-error functions according to the present invention;

[0026] Figure 7 For the present invention Figure 6Enlarged view of point B in the middle;

[0027] Figure 8 The present invention is a three-dimensional diagram of a load-bearing frame portion of an automobile component spot welding device with anti-slip and anti-error functions.

[0028] In the figure:

[0029] 1. Shelf; 2. Slide; 3. Slideway; 4. Positioning assembly; 401. Mounting frame; 402. First electric push rod; 403. Pressing plate; 404. Mounting plate; 405. Hydraulic rod; 406. Baffle; 407. Limiting tube; 408. Sliding block; 409. Cylinder; 410. Sliding rod; 411. Limiting sleeve; 412. Mounting rod; 413. Electric telescopic rod; 5. Spot welding assembly; 501. Fixing frame; 502. Support block ; 503, the first forward and reverse motor; 504, the ball screw; 505, the second electric push rod; 506, the lifting block; 507, the welding head; 508, the camera; 6, the connecting slot; 7, the cooling component; 701, the load-bearing block; 702, the second forward and reverse motor; 703, the movable tube; 704, the connecting barrel; 705, the reinforcing rod; 706, the air blower; 707, the supporting rod; 708, the semiconductor refrigeration plate; 8, the load-bearing frame; 9, the card slot. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-8 The present invention provides a technical solution: a spot welding device for automobile parts with anti-slip and anti-error functions, comprising: a layer plate 1, a load-bearing frame 8 is fixedly connected to the bottom of the layer plate 1, a positioning component 4, the positioning component 4 comprises a mounting frame 401, a first electric push rod 402 is arranged on the inner top surface of the mounting frame 401, a pressing plate 403 is fixed to the bottom end of the first electric push rod 402, two mounting plates 404 are fixed to the opposite outer surfaces of the layer plate 1, hydraulic rods 405 are arranged on the inner walls of the four mounting plates 404, and baffles 406 are fixedly connected to one end of the four hydraulic rods 405, mounting rods 412 are fixed to one side of the load-bearing frame 8 relative to the inner wall, electric telescopic rods 413 are arranged on the outer surfaces of the two mounting rods 412, sliders 408 are fixed to one end of the two electric telescopic rods 413, cylinders 409 are arranged on the tops of the two sliders 408, sliding rods 410 are fixed to the tops of the two cylinders 409, and limiting sleeves 411 are fixed to the tops of the two sliding rods 410.

[0032] like Figure 1-3 and Figure 8 As shown, two limiting tubes 407 are fixed between the other side of the load-bearing frame 8 and the inner wall, and the inner parts of the two sliders 408 are respectively slidably connected with the outer surfaces of the two limiting tubes 407. The two limiting tubes 407 limit the two sliders 408, so that the two sliders 408 are more stable during the movement, wherein the load-bearing frame 8 fixes the two limiting tubes 407.

[0033] like Figure 1-4 and Figure 8 As shown, the bottom of the mounting frame 401 is fixedly connected to the top of the layer plate 1, and two card slots 9 are respectively provided on the opposite outer surfaces of the layer plate 1. The outer surfaces of the four baffles 406 are respectively slidably connected to the inside of the four card slots 9. The stability of the mounting frame 401 is ensured by the fixation between the mounting frame 401 and the layer plate 1. The two card slots 9 ensure that the positions of the four baffles 406 will not shift during the sliding process. At the same time, the four baffles 406 are also supported and limited.

[0034] like Figure 1-2 and Figure 5-6 As shown, two slide grooves 2 are provided on the top of the layer plate 1, and two slideways 3 are fixed on the outer surface of the layer plate 1. A spot welding assembly 5 is arranged near the center of the top of the layer plate 1, and the spot welding assembly 5 includes a fixing frame 501. When the two slide bars 410 are respectively moved to be in tight contact with the inner walls of the two slide grooves 2, the two automobile parts are in tight contact with each other. At this time, the part of the automobile part that needs to be welded is exactly at the bottom of the fixing frame 501, wherein the position and length of the slide groove 2 are set in advance, and the two slideways 3 play a role of limiting the automobile parts. The internal widths of the two slideways 3 are respectively matched with the widths of the two automobile parts. The two parts respectively enter the tops of the two sets of baffles 406 along the slideways 3, and touch the inner walls of the layer plate 1 respectively under the action of inertia.

[0035] like Figure 1-2 , Figure 5-6 and Figure 8 As shown, the bottom of the fixing frame 501 is fixedly connected to the top of the layer plate 1, a support block 502 is fixed to the outer surface of the fixing frame 501, and a first forward and reverse motor 503 is arranged on the top of the support block 502. The stability of the fixing frame 501 is ensured by the fixation between the fixing frame 501 and the layer plate 1, wherein the support block 502 supports the first forward and reverse motor 503, and the first forward and reverse motor 503 is a drive for moving the welding equipment.

[0036] like Figure 1 and Figure 5-6As shown, the output shaft of the first forward and reverse motor 503 is fixedly connected to the ball screw 504, and the two ends of the ball screw 504 are respectively movable and penetrate to the opposite outsides of the fixed frame 501. The outer surface of the ball screw 504 is provided with a second electric push rod 505. The first forward and reverse motor 503 is started to drive the ball screw 504 to rotate, wherein the ball screw 504 is a mechanical transmission device that transmits force and motion between the screw thread and the nut by balls. The thread grooves of the ball screw 504 are full of balls. When the screw rotates, the balls also rotate accordingly. The balls move along the axial direction of the thread while rotating, converting the rotational motion into linear motion, realizing the horizontal movement of the object, and the ball screw 504 drives the second electric push rod 505 to move along the ball screw 504.

[0037] like Figure 1 and Figure 5-6 As shown, a lifting block 506 is fixed to the bottom end of the second electric push rod 505, a welding head 507 is arranged at the bottom of the lifting block 506, a camera 508 is arranged on the outer surface of the lifting block 506, and a connecting groove 6 is opened on the outer surface of the fixing frame 501, thereby driving the welding head 507 to move, and the second electric push rod 505 drives the lifting block 506 to move downward, thereby driving the welding head 507 to move downward, turning on the camera 508 to shoot the automobile parts, and transmitting the photographed information to the external control system, wherein the camera 508 detects whether the object moves to the required position through computer vision technology and image processing algorithms, and when the camera 508 captures that the welding head 507 moves to the part to be welded, the signal is transmitted to the external control system, and the second electric push rod 505 is started to extend it, thereby driving the welding head 507 to move downward to weld the two automobile parts.

[0038] like Figure 5 and Figure 7 As shown, a cooling component 7 is arranged inside the connecting groove 6, and the cooling component 7 includes a load-bearing block 701. The outer surface of the load-bearing block 701 is fixedly connected to the outer surface of the fixing frame 501, and a second forward and reverse motor 702 is arranged on the top of the load-bearing block 701. The opening of the connecting groove 6 facilitates the rotation of the cooling component 7, and the load-bearing block 701 supports the second forward and reverse motor 702.

[0039] like Figure 1-8 As shown, the output shaft of the second forward and reverse motor 702 is fixedly connected with a movable tube 703, and the two ends of the movable tube 703 are movable to penetrate the relative inner walls of the connecting groove 6 to the outside, and the outer surface of the movable tube 703 is fixedly sleeved with a connecting barrel 704. When the second forward and reverse motor 702 is started, the movable tube 703 is driven to rotate, and then the connecting barrel 704 is driven to rotate. By fixing the movable tube 703 and the connecting groove 6, the stability of the movable tube 703 is ensured.

[0040] like Figure 1-8As shown, a reinforcing rod 705 is fixed at one end of the connecting barrel 704, and a blower 706 is arranged on the outer surface of the reinforcing rod 705. A supporting rod 707 is fixedly installed on the inner wall of the connecting barrel 704, and a semiconductor cooling plate 708 is arranged on the outer surface of the supporting rod 707. When the position of the semiconductor cooling plate 708 in the connecting barrel 704 is rotated to the position corresponding to the automobile part, the blower 706 is started, and then the semiconductor cooling plate 708 is electrically connected to the external power supply, wherein the cold surface of the semiconductor cooling plate 708 is facing the surface of the blower 706, and the cold air released by the semiconductor cooling plate 708 is transported to the surface of the automobile part through the blower 706, so as to cool down the spot welding position of the automobile part.

[0041] The use method and working principle of the device: During the automobile processing, when two automobile parts need to be welded, first, the two parts to be welded are respectively slid into the interior of the two slideways 3 through the feed ports of the two slideways 3, wherein the internal widths of the two slideways 3 respectively match the widths of the two automobile parts, and the two parts respectively enter the tops of the two groups of baffles 406 along the slideways 3, and touch the inner walls of the layer plate 1 respectively under the action of inertia, wherein the widths of the concave parts in the layer plate 1 respectively match the widths of the two automobile parts, the purpose of which is to prevent the automobile parts from shifting in the process of sliding down, and then the corresponding two hydraulic rods 405 are respectively started to shorten them, driving the two groups of baffles 406 to move toward the same direction as the two groups of baffles 406 respectively. The two auto parts are moved in the direction of the matching mounting plate 404, so that the two auto parts fall downward to the top of the two limiting sleeves 411 under the action of their own gravity, wherein the outer surfaces of the two limiting sleeves 411 respectively match the inner wall sizes of the two auto parts, and then the two first electric push rods 402 are respectively started to extend, and the two pressing plates 403 are respectively driven to move downward to press the two auto parts until the two auto parts are respectively completely sleeved on the outer surfaces of the two limiting sleeves 411, and then the two first electric push rods 402 are started again to shrink them to the shortest, drive the pressing plate 403 to move to the highest position, and start the two cylinders 409 to extend them, drive the sliding rod 410 to move upward, until the sliding rod 410 moves to the layer plate 1. The top of the vehicle body 400 is moved upward, and the two automotive parts are driven to move upward. At the same time, the two electric telescopic rods 413 are respectively started to extend, driving the two sliders 408 to move toward each other, wherein the two limit tubes 407 limit the two sliders 408, so that the two sliders 408 are more stable during the movement. The movement of the two sliders 408 drives the two slide rods 410 to enter the inside of the two slide grooves 2 respectively. When the two slide rods 410 move to be in close contact with the inner walls of the two slide grooves 2 respectively, the two automotive parts are in close contact with each other. At this time, the part of the automotive part that needs to be welded is exactly at the bottom of the fixing frame 501. Then the first forward and reverse motor 503 is started to drive the ball screw 504 to rotate, wherein the ball screw 504 is a ball screw. A mechanical transmission device that transmits force and motion between the screw thread and the nut. The thread grooves of the ball screw 504 are filled with balls. When the screw rotates, the balls also rotate. While rotating, the balls move along the axial direction of the thread, converting the rotational motion into linear motion, and realizing the horizontal movement of the object. The ball screw 504 drives the second electric push rod 505 to move along the ball screw 504, and then drives the welding head 507 to move. The electrode in the welding head 507 passes the current to the workpiece by pressing the surface of the workpiece to form a welding circuit. When the current passes between the workpieces, it will cause local high temperature, causing the metal on the surface of the workpiece to melt rapidly to form a molten pool. The welding head 507 also applies a certain pressure while applying current to ensure the firmness of the weld.At the same time, it helps to press the molten metal together evenly. In order to prevent the automobile parts from being welded incorrectly, the camera 508 is turned on to shoot the automobile parts and transmit the shooting information to the external control system. The camera 508 detects whether the object moves to the required position through computer vision technology and image processing algorithms. When the camera 508 captures that the welding head 507 moves to the part to be welded, the signal is transmitted to the external control system, and the second electric push rod 505 is started to extend, so as to drive the welding head 507 to move downward to weld the two automobile parts. By limiting the two automobile parts, The positioning and welding positioning ensure that there will be no sliding and dislocation during the welding of automobile parts, which solves the problem of welding dislocation that is easy to occur during the spot welding of automobile parts in the prior art. When the welding of automobile parts is completed, in order to speed up the cooling of the welding point, the second forward and reverse motor 702 is started to drive the movable tube 703 to rotate, and then drive the connecting barrel 704 to rotate. When the position of the semiconductor cooling plate 708 in the connecting barrel 704 rotates to the position corresponding to the automobile parts, the blower 706 is started. The blower 706 is a device for conveying air, including an impeller, and the impeller is equipped with blades. When the impeller When rotating, the blades will drive the surrounding air to rotate together, and the air passing through the impeller will be discharged to the outlet of the blower 706 to form an airflow, and then the semiconductor refrigeration sheet 708 is electrically connected to the external power supply, wherein the cold surface of the semiconductor refrigeration sheet 708 faces the surface of the blower 706. The semiconductor refrigeration sheet 708 is a phenomenon that when an electric current passes between two different materials, heat will be transferred between the two materials. When the current passes through the thermoelectric pair in the semiconductor refrigeration sheet 708, one of the semiconductors absorbs heat and becomes hot, and the other semiconductor dissipates heat and becomes cold, which causes the heat to be transferred from one side to the other side, thereby on one side The cooling effect is achieved in the process of cooling on one side and heating on the other side. The cold air released by the semiconductor cooling sheet 708 is transported to the surface of the automobile parts through the blower 706, and the temperature of the spot welding position of the automobile parts is cooled, and the cooling speed of the automobile parts is accelerated, thereby increasing the fixing rate of the spot welding hazards of the automobile parts. Among them, the external control system is electrically connected to the first electric push rod 402, the hydraulic rod 405, the cylinder 409, the electric telescopic rod 413, the first forward and reverse motor 503, the second electric push rod 505, the welding head 507, the camera 508, the second forward and reverse motor 702, the blower 706 and the semiconductor cooling sheet 708.

[0042] The wiring diagram of the first electric push rod 402, hydraulic rod 405, cylinder 409, electric telescopic rod 413, first forward and reverse motor 503, second electric push rod 505, welding head 507, camera 508, second forward and reverse motor 702, air blower 706 and semiconductor cooling plate 708 in the present invention is common knowledge in the field, and its working principle is a well-known technology. The model is selected according to the actual use. Therefore, the control method and wiring arrangement of the first electric push rod 402, hydraulic rod 405, cylinder 409, electric telescopic rod 413, first forward and reverse motor 503, second electric push rod 505, welding head 507, camera 508, second forward and reverse motor 702, air blower 706 and semiconductor cooling plate 708 will no longer be explained in detail.

[0043] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. 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. A spot welding device for automobile parts with anti-slip and anti-error functions, characterized in that: include: A layer board (1), wherein the bottom of the layer board (1) is fixedly connected to a load-bearing frame (8); A positioning assembly (4), the positioning assembly (4) comprising a mounting frame (401), a first electric push rod (402) being arranged on the inner top surface of the mounting frame (401), a pressing plate (403) being fixed to the bottom end of the first electric push rod (402), two mounting plates (404) being fixed to opposite outer surfaces of the layer plate (1), hydraulic rods (405) being arranged on the inner walls of the four mounting plates (404), and baffles (406) being fixedly connected to one end of the four hydraulic rods (405). A mounting rod (412) is fixed on one side of the load-bearing frame (8) relative to the inner wall, an electric telescopic rod (413) is arranged on the outer surface of the two mounting rods (412), a slider (408) is fixed on one end of the two electric telescopic rods (413), a cylinder (409) is arranged on the top of the two sliders (408), a sliding rod (410) is fixedly connected to the top of the two cylinders (409), and a limiting sleeve (411) is fixed on the top of the two sliding rods (410); Two limiting tubes (407) are fixed between the inner wall on the other side of the load-bearing frame (8), and the interiors of the two sliding blocks (408) are respectively slidably connected to the outer surfaces of the two limiting tubes (407); the bottom of the mounting frame (401) is fixedly connected to the top of the layer plate (1), and the opposite outer surfaces of the layer plate (1) are respectively provided with two slots (9), and the outer surfaces of the four baffles (406) are respectively slidably connected to the insides of the four slots (9); the top of the layer plate (1) is provided with two slide grooves (2), and the outer surface of the layer plate (1) is fixed with two slideways (3), and a spot welding assembly (5) is arranged near the center of the top of the layer plate (1), and the spot welding assembly (5) includes a fixing frame (501).

2. The spot welding device for automobile parts with anti-slip and anti-error functions according to claim 1 is characterized in that: The bottom of the fixing frame (501) is fixedly connected to the top of the layer board (1), a support block (502) is fixed to the outer surface of the fixing frame (501), and a first forward and reverse motor (503) is arranged on the top of the support block (502).

3. The spot welding device for automobile parts with anti-slip and anti-error functions according to claim 2 is characterized in that: The output shaft of the first forward and reverse motor (503) is fixedly connected to a ball screw (504), and two ends of the ball screw (504) are respectively movable and penetrate to opposite exteriors of the fixing frame (501), and a second electric push rod (505) is provided on the outer surface of the ball screw (504).

4. The spot welding device for automobile parts with anti-slip and anti-error functions according to claim 3 is characterized in that: A lifting block (506) is fixed to the bottom end of the second electric push rod (505), a welding head (507) is arranged at the bottom of the lifting block (506), a camera (508) is arranged on the outer surface of the lifting block (506), and a connecting groove (6) is arranged on the outer surface of the fixing frame (501).

5. The spot welding device for automobile parts with anti-slip and anti-error functions according to claim 4 is characterized in that: A cooling component (7) is arranged inside the connecting groove (6), and the cooling component (7) comprises a load-bearing block (701). The outer surface of the load-bearing block (701) is fixedly connected to the outer surface of the fixing frame (501), and a second forward and reverse motor (702) is arranged on the top of the load-bearing block (701).

6. The spot welding device for automobile parts with anti-slip and anti-error functions according to claim 5, characterized in that: The output shaft of the second forward and reverse motor (702) is fixedly connected to a movable tube (703), and both ends of the movable tube (703) are respectively movable through the opposite inner walls of the connecting groove (6) to the outside, and a connecting barrel (704) is fixedly sleeved on the outer surface of the movable tube (703).

7. The spot welding device for automobile parts with anti-slip and anti-error functions according to claim 6, characterized in that: A reinforcing rod (705) is fixed to one end of the connecting barrel (704), a blower (706) is arranged on the outer surface of the reinforcing rod (705), a supporting rod (707) is fixedly installed on the inner wall of the connecting barrel (704), and a semiconductor cooling plate (708) is arranged on the outer surface of the supporting rod (707).

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