Automotive parts welding equipment

Abstract

This utility model provides a welding device for automotive parts, relating to the technical field of vehicle manufacturing equipment. It includes a rotating assembly comprising two support frames, each shaped like a gate. A rotating shaft passes through each support frame via bearings, and the rotating shaft is connected to a first drive motor via either side of the support frame. A clamping assembly includes a connecting seat fitted around the rotating shaft. Two mounting brackets are fixedly connected to the top of the connecting seat. A clamping plate is slidably connected vertically to the inner cavity of each mounting bracket. A moving assembly is provided on the top of each clamping plate for longitudinally moving the clamping plate. A welding assembly is located at the connection point of the two support frames, with its bottom positioned between the two mounting brackets. This invention solves the problem of not being able to rotate parts synchronously according to welding requirements, resulting in welding blind spots. It achieves 360-degree rotation of the parts, enabling all-around welding of part gaps, eliminating welding blind spots, and significantly improving welding quality and strength.

Description

Technical Field

[0001] This utility model relates to the field of vehicle manufacturing equipment technology, and in particular to a welding device for automotive parts. Background Technology

[0002] Welding is a core process for connecting metal parts in automobiles, determining the overall structural strength, safety, and service life of the vehicle. Automotive parts must be reliably connected through welding to meet the load-bearing and impact resistance requirements of vehicles under complex operating conditions.

[0003] Currently, automotive parts welding mainly relies on traditional manual welding or semi-automatic welding. Manual welding requires skilled operators to complete the welding operation, suitable for simple welds or small-batch production. Semi-automatic welding involves manually adjusting the position of parts in conjunction with mechanical welding actions. However, manual welding is prone to uneven welds and insufficient penetration due to hand tremors and angular deviations, and it is difficult to ensure consistent quality in mass production. Semi-automatic welding still relies on manual adjustment of part posture, which is difficult and time-consuming when dealing with complex joints. Therefore, fully automated welding equipment is gradually being adopted to replace manual labor.

[0004] However, existing fully automatic welding equipment can only fix parts in one direction, and cannot rotate parts synchronously or adjust them at multiple angles according to welding requirements. This results in welding blind spots at the seams, making it difficult to achieve full welding. This not only affects the welding strength, but may also cause premature failure of parts due to stress concentration, increasing the later maintenance costs. Utility Model Content

[0005] The purpose of this utility model is to provide a welding device for automotive parts, so as to alleviate the technical problem in the prior art that the parts cannot be rotated synchronously according to the welding requirements, resulting in welding blind spots.

[0006] The automotive parts welding device provided by this utility model includes: a rotating assembly, a clamping assembly, a moving assembly, and a welding assembly; The rotating component includes a support frame, the two support frames are in the shape of a gate, and a rotating shaft is passed through the support frame via a bearing. The rotating shaft passes through the support frame on one side and is connected to a first drive motor. The clamping assembly includes a connecting seat, which is sleeved on the outside of the rotating shaft. Two mounting brackets are fixedly connected to the top of the connecting seat. A clamping plate is slidably connected vertically to the inner cavity of each mounting bracket. A moving component is provided on the top of the clamping plate for moving the clamping plate longitudinally. A welding assembly is provided at the connection between the two support frames, and the bottom of the welding assembly is located between the two mounting frames.

[0007] Furthermore, the moving component includes a first lead screw, a solenoid, a driven gear, a driving gear, and a second drive motor; One end of the first lead screw is connected to the top of the clamping plate, and the other end of the first lead screw passes through the top surface of the mounting frame and is threaded with a screw tube. The top of the screw tube is fitted with a driven tooth, which meshes with the driving tooth. The driving tooth is connected to the output shaft of the second drive motor, which is located on the top of the mounting frame.

[0008] Furthermore, the welding assembly includes a slide rail, a slider, an electric push rod, and a welding torch; The slide rail is fixed between two support frames. The slide rail cavity is equipped with a displacement component, which is connected to a slider to drive the slider to move on the slide rail. An electric push rod is fixed to the bottom of the slider, and a welding gun is installed at the bottom of the electric push rod. The welding gun is electrically connected to an external welding host through a wire.

[0009] Furthermore, the displacement assembly includes a second lead screw and a third drive motor; The second lead screw is located inside the slide rail and is threadedly connected to the slider. The end of the second lead screw away from the slider passes through the slide rail and is connected to the output end of the third drive motor. The third drive motor is fixed on the top of the slide rail.

[0010] Furthermore, a fixing part is provided at the bottom of the support frame, and a mounting hole is opened on the surface of the fixing part. The inner cavity of the mounting hole is connected to the ground by bolts.

[0011] Furthermore, a mounting groove is provided at the bottom of the clamping plate, and a pressure sensor is installed in the mounting groove.

[0012] Furthermore, a limiting groove is provided on the back of the mounting bracket, and the limiting groove is slidably connected to a limiting block integrally formed on the back of the clamping plate.

[0013] Furthermore, rubber pads are bonded to the contact surfaces of the clamping plate and the mounting bracket parts using adhesive, and the surface of the rubber pads is provided with anti-slip texture.

[0014] Beneficial effects: The automotive parts welding device provided by this utility model achieves multi-angle rotary welding of parts through the synergy of a rotating component and a clamping component. The component, driven by a drive motor, rotates a shaft, enabling the parts to rotate 360 ​​degrees. This allows the welding component to weld gaps in the parts from all angles, effectively eliminating welding blind spots and significantly improving welding quality and strength, thus meeting the high-precision requirements of automotive manufacturing. The driving component of the clamping component drives the clamping plate to slide precisely, quickly clamping and fixing the parts, reducing manual intervention time.

[0015] The automated operation of the rotating assembly, clamping assembly, and welding assembly of this invention reduces reliance on manual operation skills, improves production line operation, and enhances adaptability to the production of diverse automotive parts. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the structure of the automotive parts welding device provided in this embodiment of the utility model; Figure 2 Rear view of the automotive parts welding apparatus provided in an embodiment of this utility model; Figure 3 A cross-sectional view of an automotive parts welding apparatus provided in an embodiment of this utility model; Figure 4 A schematic diagram of the structure of the moving component of the automotive parts welding device provided in this embodiment of the utility model; Figure 5 An enlarged view of section A of the automotive parts welding device provided in an embodiment of this utility model.

[0018] Icons: 1-Rotating component; 101-Support frame; 102-Rotating shaft; 103-First drive motor; 2-Clamping component; 201-Connecting seat; 202-Mounting bracket; 203-Clamping plate; 204-Pressure sensor; 205-Limiting groove; 206-Limiting block; 3-Moving component; 301-First lead screw; 302-Screw; 303-Driven gear; 304-Driving gear; 305-Second drive motor; 4-Welding component; 401-Slide rail; 402-Slider; 403-Electric push rod; 404-Welding torch; 5-Displacement component; 501-Second lead screw; 502-Third drive motor. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0026] like Figures 1-5 As shown, the automotive parts welding device provided by this utility model includes: a rotating assembly 1, a clamping assembly 2, a moving assembly 3, and a welding assembly 4; The rotating component 1 includes a support frame 101. The two support frames 101 are in the shape of a gate. The support frame 101 is provided with a rotating shaft 102 through a bearing. The rotating shaft 102 passes through the support frame 101 on one side and is connected to a first drive motor 103. The clamping assembly 2 includes a connecting seat 201, which is sleeved on the outside of the rotating shaft 102. Two mounting brackets 202 are fixedly connected to the top of the connecting seat 201. A clamping plate 203 is slidably connected vertically to the inner cavity of each mounting bracket 202. A moving assembly 3 is provided on the top of the clamping plate 203 for moving the clamping plate 203 longitudinally. A welding assembly 4 is provided at the connection between the two support frames 101, and the bottom of the welding assembly 4 is located between the two mounting frames 202.

[0027] Specifically, two frame-shaped support frames 101 stand opposite each other to form a gantry structure. A rotating shaft 102 passes through a bearing hole in the middle of the two support frames 101 in a horizontal direction. The inner ring of the bearing is interference-fitted with the rotating shaft 102, and the outer ring is fixed to the support frame 101, so that the rotating shaft 102 can rotate smoothly around its own axis. Any end of the rotating shaft 102 passes through the outer wall of one of the support frames 101, and the end is connected to the output shaft of the first drive motor 103 through a coupling. The first drive motor 103 is fixed to the outer wall of the support frame 101 on that side by a bracket. The connecting seat 201 of the clamping assembly 2 is rectangular in shape, with a circular through hole in the center. The circular through hole is fixed to the outer wall of the rotating shaft 102 by a key. The connecting seat 201 rotates synchronously with the rotating shaft 102. Two mounting brackets 202 are symmetrically distributed on the top of the connecting seat 201 along the length of the rotating shaft 102. The mounting brackets are C-shaped, and the inner wall of the mounting bracket 202 has a vertical groove. The two sides of the clamping plate 203 are embedded in the groove to form a sliding fit. The moving assembly 3 is connected to the top inner wall of the mounting bracket 202, extends downward and is fixed at the top center of the clamping plate 203 to realize the longitudinal drive of the clamping plate 203. The fixing bracket of the welding assembly 4 is installed in the middle of the top crossbeam of the two support brackets 101. The welding torch at its bottom extends vertically downward and is located in the area directly above the two mounting brackets 202.

[0028] The support frame 101 provides support for the rotating shaft 102 and the welding assembly 4. The rotating shaft 102 is connected to the bearing of the support frame 101. With the transmission of the first drive motor 103, the clamping assembly 2 can be driven to rotate 360 ​​degrees, which is convenient for adjusting the welding angle of the parts. The two mounting frames 202 are symmetrically distributed and equipped with a longitudinally movable clamping plate 203, which can adapt to parts of different sizes. The moving assembly 3 drives the clamping plate 203 to move, ensuring stable clamping. The welding assembly 4 is located above the two mounting frames 202, which can be directly aligned with the joint of the two parts, reducing the welding blind spot. At the same time, it can achieve all-round welding as the parts rotate, effectively improving the welding quality and efficiency.

[0029] In an embodiment of this utility model, the moving component 3 includes a first lead screw 301, a screw tube 302, a driven tooth 303, a driving tooth 304, and a second drive motor 305. One end of the first lead screw 301 is connected to the top of the clamping plate 203, and the other end of the first lead screw 301 passes through the top surface of the mounting frame 202 and is threadedly connected to the screw tube 302. The driven tooth 303 is sleeved on the top of the screw tube 302. The driven tooth 303 meshes with the driving tooth 304. The driving tooth 304 is connected to the output shaft of the second drive motor 305. The second drive motor 305 is arranged on the top of the mounting frame 202.

[0030] Welding assembly 4 includes a slide rail 401, a slider 402, an electric push rod 403, and a welding torch 404; The slide rail 401 is fixed between two support frames 101. The slide rail 401 has a displacement component 5 inside. The displacement component 5 is connected to the slider 402 and is used to drive the slider 402 to move on the slide rail 401. An electric push rod 403 is fixed to the bottom of the slider 402. A welding gun 404 is set at the bottom of the electric push rod 403. The welding gun 404 is electrically connected to an external welding host through a wire.

[0031] The displacement assembly 5 includes a second lead screw 501 and a third drive motor 502; the second lead screw 501 is disposed inside the slide rail 401 and is threadedly connected to the slider 402. The end of the second lead screw 501 facing away from the slider 402 passes through the slide rail 401 and is connected to the output end of the third drive motor 502. The third drive motor 502 is fixed on the top of the slide rail 401.

[0032] Specifically, the bottom end of the first lead screw 301 is rotatably connected to the top of the clamping plate 203 via a bearing, and the top end penetrates the top surface of the mounting bracket 202 in a vertical direction and is threaded into the inner cavity of the screw tube 302; the screw tube 302 is vertically fixed to the top surface of the mounting bracket 202, and its top outer wall is fixed to the inner ring of the driven tooth 303 via a key connection; the outer side of the driven tooth 303 meshes with the driving tooth 304; the inner ring of the driving tooth 304 is fixed to the output shaft of the second drive motor 305 via a key connection; the second drive motor 305 is horizontally fixed to one side of the top of the mounting bracket 202 via a mounting seat, and the output shaft faces the screw tube 302. The moving component 3 is driven by the second drive motor 305 to rotate the active gear 304 and the driven gear 303, thereby controlling the rotation of the solenoid 302. This enables the first lead screw 301 to drive the clamping plate 203 to move longitudinally, ensuring that the clamping force for parts of different thicknesses is controllable and avoiding deformation due to excessive tightness or deviation due to excessive looseness. At the same time, the gear transmission has strong stability and can reduce shaking during the clamping process.

[0033] The slide rail 401 of the welding assembly 4 is horizontally fixed between the inner side walls of the top of the two support frames 101, and its inner cavity has a slide track along the length direction; the second lead screw 501 of the displacement assembly 5 is set along the length direction of the slide rail 401, and its two ends are rotatably connected to the inner wall of the slide rail 401 through bearings. The rod body is threadedly connected to the inner cavity of the slider 402, so that the slider 402 can slide along the slide track; any end of the second lead screw 501 passes through the end of the slide rail 401 and is connected to the output shaft of the third drive motor 502 through a coupling. The third drive motor 502 is fixed at the top position of the slide rail 401 by a bracket; the bottom center of the slider 402 is fixedly connected to the top of the electric push rod 403, the bottom end of the electric push rod 403 is fixed to the top of the welding gun 404, and the welding gun 404 is vertically downward and directly above the two mounting frames 202.

[0034] The welding assembly 4 works in conjunction with the displacement assembly 5. The third drive motor 502 drives the second lead screw 501 to rotate, which in turn drives the slider 402 to move smoothly along the slide rail 401. Combined with the electric push rod 403 to adjust the height of the welding torch 404, it can flexibly adapt to welds in different positions. The welding torch 404 is located between the two mounting brackets 202 and can be directly aimed at the gap to be welded. Combined with the rotation of the rotating assembly 1, it can achieve all-round welding, effectively eliminate blind spots, and improve welding quality and efficiency.

[0035] In an embodiment of this utility model, a fixing part is provided at the bottom of the support frame 101, and an installation hole is provided on the surface of the fixing part. The inner cavity of the installation hole is connected to the ground by bolts.

[0036] The bottom of the clamping plate 203 has a mounting groove, and a pressure sensor 204 is installed in the mounting groove.

[0037] The mounting bracket 202 has a limiting groove 205 on its back, and the limiting groove 205 is slidably connected to the limiting block 206 integrally formed on the back of the clamping plate 203.

[0038] Both the clamping plate 203 and the mounting bracket 202 have rubber pads bonded to their contact surfaces with adhesive, and the surface of the rubber pads is provided with anti-slip texture.

[0039] Specifically, the bottom of the support frame 101 extends outward to form a flat fixing part. The fixing part is integrally formed with the main body of the support frame 101. Two mounting holes are evenly opened on its surface along the length direction. The mounting holes penetrate the upper and lower surfaces of the fixing part. After the bolt passes through the mounting hole, it is tightened to the threaded hole pre-set on the ground, so that the support frame 101 is rigidly fixed to the ground.

[0040] The bottom center of the clamping plate 203 is recessed inward to form a mounting groove that is compatible with the pressure sensor 204. The depth of the mounting groove matches the thickness of the pressure sensor 204. The pressure sensor 204 is fixed in the mounting groove by bolts, and its sensing surface is flush with the bottom surface of the clamping plate 203.

[0041] The mounting bracket 202 has a strip-shaped limiting groove 205 on the back along the vertical direction. The clamping plate 203 has a limiting block 206 integrally formed on the back of the corresponding position, which is adapted to the limiting groove 205. The limiting block 206 is embedded in the limiting groove 205 and can slide vertically along the groove.

[0042] The bottom clamping surface of the clamping plate 203 and the top bearing surface of the mounting bracket 202 are both bonded with rubber pads by high-strength adhesive. The thickness of the rubber pads is 2-3 mm, preferably 2.5 mm. The surfaces are pressed with staggered anti-slip textures with a depth of 0.5 mm.

[0043] The fixed part of the support frame 101 is rigidly connected to the ground by bolts. Combined with the stability of the portal structure, it offsets the vibration and torque generated by the rotating component 1 and the clamping component 2 during the operation of the device, avoids overall displacement, and ensures welding accuracy. The mounting groove at the bottom of the clamping plate 203 is equipped with a pressure sensor 204, which can directly monitor the clamping force and facilitate real-time adjustment of the clamping force to prevent deformation or displacement of parts. The limiting groove 205 of the mounting frame 202 cooperates with the limiting block 206 to guide the longitudinal movement of the clamping plate 203 and limit its lateral displacement, thereby improving clamping stability.

[0044] Based on the above embodiments, the specific working process of the automotive parts welding device provided by this utility model is as follows: First, the automotive parts to be welded are placed on the mounting bracket 202 of the clamping assembly 2. The second drive motor 305 drives the clamping plate 203 to slide downwards, clamping and fixing the parts. The pressure sensor 204 monitors the clamping force in real time to ensure proper clamping. Then, the first drive motor 103 of the rotating assembly 1 starts, driving the rotating shaft 102 to rotate. The rotating shaft 102 drives the clamping assembly 2 and the clamped parts to rotate together through the connecting seat 201. At the same time, the welding assembly 4 starts working. The electric push rod 403 drives the welding gun 404 to descend to the appropriate welding height. The slider 402 slides along the slide rail 401 to adjust the position of the welding gun 404 so that the welding gun 404 can weld the gaps of the parts. During the welding process, the rotating assembly 1 continuously drives the parts to rotate, so that the welding gun 404 can weld the gaps from all directions. After the welding work is completed, all components are reset, waiting for the next operation.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A welding device for automotive parts, characterized in that, include: Rotating assembly (1), clamping assembly (2), moving assembly (3) and welding assembly (4); The rotating assembly (1) includes a support frame (101), the two support frames (101) are in the shape of a gate, the support frame (101) is provided with a rotating shaft (102) through a bearing, and the rotating shaft (102) is connected to a first drive motor (103) through the support frame (101) on either side. The clamping assembly (2) includes a connecting seat (201), which is sleeved on the outside of the rotating shaft (102). Two mounting brackets (202) are fixedly connected to the top of the connecting seat (201). Each mounting bracket (202) has a clamping plate (203) vertically slidably connected to its inner cavity. A moving assembly (3) is provided on the top of the clamping plate (203) for moving the clamping plate (203) longitudinally. A welding assembly (4) is provided at the connection between the two support frames (101), and the bottom of the welding assembly (4) is located between the two mounting frames (202).

2. The automotive parts welding apparatus according to claim 1, characterized in that, The moving component (3) includes a first lead screw (301), a solenoid (302), a driven gear (303), a driving gear (304), and a second drive motor (305); One end of the first lead screw (301) is connected to the top of the clamping plate (203), and the other end of the first lead screw (301) passes through the top surface of the mounting bracket (202) and is threadedly connected to a screw tube (302). The top of the screw tube (302) is fitted with the driven tooth (303), which meshes with the driving tooth (304). The driving tooth (304) is connected to the output shaft of the second drive motor (305), which is arranged on the top of the mounting bracket (202).

3. The automotive parts welding apparatus according to claim 1, characterized in that, The welding assembly (4) includes a slide rail (401), a slider (402), an electric push rod (403), and a welding torch (404). The slide rail (401) is fixed between the two support frames (101). The slide rail (401) is provided with a displacement component (5). The displacement component (5) is connected to the slider (402) and is used to drive the slider (402) to move on the slide rail (401). An electric push rod (403) is fixed to the bottom of the slider (402). The welding gun (404) is provided at the bottom of the electric push rod (403). The welding gun (404) is electrically connected to an external welding host through a wire.

4. The automotive parts welding apparatus according to claim 3, characterized in that, The displacement assembly (5) includes a second lead screw (501) and a third drive motor (502); The second lead screw (501) is disposed inside the slide rail (401). The second lead screw (501) is threadedly connected to the slider (402). The end of the second lead screw (501) away from the slider (402) passes through the slide rail (401) and is connected to the output end of the third drive motor (502). The third drive motor (502) is fixed on the top of the slide rail (401).

5. The automotive parts welding apparatus according to claim 1, characterized in that, The bottom of the support frame (101) is provided with a fixing part, and the surface of the fixing part is provided with a mounting hole. The inner cavity of the mounting hole is connected to the ground by bolts.

6. The automotive parts welding apparatus according to claim 1, characterized in that, The bottom of the clamping plate (203) is provided with an installation groove, and a pressure sensor (204) is provided in the installation groove.

7. The automotive parts welding apparatus according to claim 1, characterized in that, The mounting bracket (202) has a limiting groove (205) on its back side, and the limiting groove (205) is slidably connected to the limiting block (206) integrally formed on the back side of the clamping plate (203).

8. The automotive parts welding apparatus according to claim 1, characterized in that, Both the clamping plate (203) and the mounting bracket (202) have rubber pads bonded to their contact surfaces with adhesive, and the surface of the rubber pads is provided with anti-slip texture.

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