An integrated welding apparatus for assembling a vehicle body

Abstract

The application discloses a kind of integrated welding equipment for automobile body assembly, and relate to the technical field of automobile production and manufacturing.The present application includes clamping frame, adjusting frame and workbench, wherein workbench is rotatably engaged with adjusting frame, and workbench is nested inside adjusting frame, clamping frame includes support table and control adjustment table, both surfaces are equipped with clamping cylinder, and are controlled by drive cylinder.The present application is provided with adjusting frame, workbench and clamping frame, by controlling the action area of adjusting frame and workbench, cooperating with support table and control adjustment table in clamping frame, the working area inside the equipment is partitioned, and different area and different complexity of structure connection work can be adapted by simple operation;wherein, by drive cylinder and adjusting rod, telescopic rod structure is formed between the two, and cooperates with pressure spring, in actual welding process, welding gun can always adhere to the surface of welding part for efficient work, and is not affected by the surface structure.

Description

Technical Field

[0001] This invention belongs to the field of automobile manufacturing technology, and in particular relates to an integrated welding equipment for automobile body assembly. Background Technology

[0002] On the automobile production line, body assembly is the foundation of automobile manufacturing, including the assembly and connection of the body frame, the connection between the frame and the shell, etc. In order to improve the stability of the overall body structure, the assembly and connection methods are usually welding and riveting, especially the assembly of body frame components, which are generally completed by welding.

[0003] Because the joints between automotive body frame components are typically irregular or complex, traditional manual welding methods often require repeated welding at multiple points, resulting in a large workload and tedious processes that hinder production efficiency. While emerging automated welding production lines can achieve a certain degree of automation, they still require constant adjustment of operating parameters, making precision control difficult. Compared to traditional manual welding, their advantages are not significant. To address this, we have designed an integrated welding equipment for automotive body assembly that combines automated production with manual operation, maintaining high efficiency while improving accuracy. This solution addresses the challenges of existing production lines. Summary of the Invention

[0004] The purpose of this invention is to provide an integrated welding equipment for automobile body assembly, which solves the problems of low efficiency of manual welding and low precision of automated welding in existing automobile assembly production lines.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] This invention relates to an integrated welding device for assembling automobile bodies, comprising a clamping frame, an adjusting frame, and a working frame. The clamping frame includes two sets of support platforms and one set of control adjusting platforms, which are respectively disposed on the peripheral side of the adjusting frame. The support platforms and the control adjusting platforms are welded and fixed to the adjusting frame. The working frame is nested inside the adjusting frame and rotatably engaged with it. In the above structure, the clamping frame is used to clamp the various frame components of the automobile body to be assembled, the adjusting frame rotates and slides inside the clamping frame to adjust the position of the welding tools, and the working frame is used to install the welding tools.

[0007] The adjustment frame is a ring-shaped plate structure, and several adjustment frames are welded and fixed to the support platform and the control adjustment platform. Two sets of support platforms and control adjustment platforms are arranged in a ring array outside the adjustment frame, with the support platforms located below and the control adjustment platforms located above, between the two sets of support platforms. In this structure, the two sets of support platforms are used to support and fix the various parts of the clamping frame, adjustment frame, and work frame, while also supporting and fixing the car body frame for subsequent welding work. There is a gap between adjacent adjustment frames, and clamping cylinders are bolted to the surfaces of the support platform and the control adjustment platform. The output shaft of the clamping cylinder extends into the interior of the adjustment frame through the gap between adjacent adjustment frames. The gap between adjacent adjustment frames allows workers to enter the equipment to perform welding work and fine adjustments to the car body frame components, and also facilitates observation of the actual welding process.

[0008] The adjusting frame includes three sets of "U"-shaped frames. Each "U"-shaped frame includes a fixed rod and a connecting rod, with both ends of the fixed rod welded to the connecting rod. One surface of the fixed rod has an adjusting groove, inside which a driven slider is slidably engaged. A driving cylinder is welded to one surface of the driven slider, inside which an adjusting rod is slidably engaged, and the adjusting rod and driving cylinder form a telescopic rod structure. A connecting cable is bolted to one side of the driving cylinder, and the other end of the connecting cable is bolted to a welding torch. The connecting cable is a flexible wire structure, used to connect the driving cylinder and the welding torch together, and on the other side... The welding torch is connected to an external power source. One surface of the welding torch is welded with a suction plate, and the other surface is provided with a limiting sleeve and a welding head. The welding head is nested inside the limiting sleeve and fixedly connected to the welding torch. A connecting plate is welded to the lower end of the adjusting rod. Both the connecting plate and the suction plate are electromagnetic plates, and they are magnetically attracted to each other when energized. When energized, the connecting plate and the suction plate are magnetically attracted and fixedly connected, which facilitates large-scale overall welding of the vehicle body frame components. When the power is off, the operator can remove the welding torch for manual operation, thereby fine-tuning and controlling the details of the welding work.

[0009] Furthermore, the lower end of the limiting sleeve is rotatably engaged with a spiral tube, and rollers are rotatably connected to the opposite sides of the spiral tube, forming a universal wheel structure with the spiral tube and rollers. When performing overall welding of the vehicle body frame components, the universal wheel structure facilitates the movement of the welding torch on the weld surface, thereby achieving adjustment of the welding position. The lower end of the welding head extends through the spiral tube between the two opposite rollers, and the welding working end of the welding head is higher than the outer edge of the rollers. During overall welding, a fixed distance is maintained between the welding head and the weld, facilitating the actual welding work.

[0010] Furthermore, a pressure spring is welded between the upper end of the adjusting rod and the inner surface of the drive cylinder. The initial state of the pressure spring is compressed. During the overall welding operation, when the caster wheel contacts the weldment, it can receive the support force to retract the adjusting rod, thereby adapting to the position of different component parts. The suction plate and the connecting plate are electrically connected to the drive cylinder. The adjusting rod and the limiting sleeve are both equipped with start switches to control the power supply circuit of the connecting plate and the suction plate, respectively. In actual operation, the limiting sleeve can act as a hand grip for the welding gun. The operator can hold the limiting sleeve and control the start switch to cut off or supply power to the suction plate and the connecting plate for flexible use.

[0011] Furthermore, a hydraulic transmission pipe is bolted between the clamping cylinder on the support platform surface and the clamping cylinder on the control adjustment platform surface; a drive cylinder is installed between two adjacent clamping cylinders on the control adjustment platform surface, and the output end of the drive cylinder is connected to the clamping cylinder; the drive cylinder is an electro-hydraulic cylinder, which has multiple output ends, each corresponding to a clamping cylinder on the control adjustment platform surface. When started, the drive cylinder drives the clamping cylinder on the control adjustment platform surface to work, and three adjacent clamping cylinders are connected through a hydraulic transmission pipe, thereby realizing multi-directional output clamping.

[0012] Furthermore, the clamping cylinder and the hydraulic transmission pipe form a hydraulic clamping group, and the three sets of "U"-shaped frames are respectively set between two adjacent clamping cylinders in the same hydraulic clamping group; during the welding operation, the "U"-shaped frame and the clamping cylinder are staggered and can cover different positions of the body frame component during the rotation of the adjustment frame, thereby realizing the overall welding of the welded parts.

[0013] Furthermore, several connecting rods of the "U"-shaped frame are welded and fixed to each other, and a driven shaft is welded to one surface at the weld point, with a driven sprocket welded to one end of the driven shaft; a drive sprocket is connected to a rotating shaft on one side of the support platform, and a transmission chain is installed between the drive sprocket and the driven sprocket; in actual operation, the drive sprocket is the driving component for equipment adjustment, and the sprocket and chain transmission structure drives the overall rotation of the adjustment frame to realize the longitudinal welding work of the welded parts.

[0014] Furthermore, the surfaces of the connecting rods of the three sets of "U"-shaped frames are all bolted with adjusting motors. One end of the output shaft of the adjusting motor is welded with a drive screw, which extends into the interior of the adjusting slide groove and forms a screw structure with the driven slider through a thread. When the adjusting motor is started, the screw structure drives the driven slider and the welding gun to slide axially, thereby realizing axial welding work.

[0015] Furthermore, the inner surface of the adjusting frame is provided with an annular groove, and several adjusting sliders are welded to the outer side of the fixed rod. The adjusting sliders are located inside the annular groove and are slidably engaged with the annular groove. One end of the output shaft of the clamping cylinder is welded with a clamping plate, and the positions of the clamping plates are opposite to each other to form a clamping structure.

[0016] In combination with the above structure, when the integrated welding equipment of the present invention is working, the drive cylinder is first started, and the clamping plates of each set of clamping cylinders are adjusted to the initial position using the hydraulic transmission principle. Then, the body frame component to be welded is placed inside the adjustment frame, and the drive cylinder is started again. The clamping plates of each set form a jacket structure to clamp and fix the welded parts from multiple directions. After clamping is completed, the welding work can begin.

[0017] Based on the aforementioned structural design, the actual welding process of the welding equipment of the present invention includes the following steps:

[0018] First, the body frame components are pre-shaped and spot-welded. This is done by the operator outside the equipment, controlling the rotation of the drive sprocket, which in turn drives the U-shaped frames of the adjustment frame to rotate using the sprocket and chain transmission principle. During the rotation, spot welding is performed in the working area of ​​each welding gun. It should be noted that each welding gun shares a common power supply and control switch. The control switch is continuously turned on and off during the rotation and spot selection process to achieve spot welding. Then, by starting the adjustment motor, each welding gun can move axially to different welding points.

[0019] Then connect the points to form a line, connecting and reinforcing the weld points from the previous step. During this process, the operator still controls the adjustment frame to drive the welding torch to perform linear welding within its effective range. During this process, the positional relationship between the welding head and the outer edge of the roller ensures that the weld seam between the welding head and the workpiece remains at a fixed distance. At the same time, the welding position can be flexibly adjusted according to different structural positions using the telescopic rod structure. In addition, the pressure spring presses the welding torch tightly against the workpiece to ensure welding quality.

[0020] Finally, to fill the weld seam, due to the obstruction of the clamping cylinder and clamping plate, there are a few positions in the welded part that are not involved in the welding work. At this time, the staff needs to enter the equipment to manually fill the weld seam. Specifically, when the staff holds the limit sleeve or adjusting rod, press the start switch to disconnect the electromagnet's power circuit, the magnetic attraction disappears, and the limit sleeve is used as the handle of the welding gun for hand-held welding work, which can fill the weld seam in some welding dead corners or details.

[0021] The present invention has the following beneficial effects:

[0022] The present invention is provided with an adjustment frame, a working frame and a clamping frame. By controlling the working area of ​​the adjustment frame and the working frame, and cooperating with the support platform and control adjustment platform in the clamping frame, the working area inside the equipment can be divided into sections for work. It can adapt to the connection work of structural components with different complexities in different areas through simple operation.

[0023] The system utilizes a telescopic rod structure formed by the drive cylinder and adjusting rod, in conjunction with a pressure spring, to ensure that the welding torch remains in constant contact with the surface of the workpiece during welding, operating efficiently regardless of its surface structure. Furthermore, by incorporating rollers and a rotating tube, and positioning the welding head above the outer edge of the rollers, the system allows for more flexible torch adjustment. It also ensures a fixed height between the welding head and the weld, enabling efficient and stable welding even on complex weld surfaces.

[0024] In addition, based on the structural characteristics of this technical solution, a new welding process has also emerged in the welding work. This process involves pre-spot welding for shaping, connecting the spots into a line for fixing, and manually welding to repair dead corners. The semi-automated welding process ensures the accuracy of the welding work while achieving high welding efficiency.

[0025] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is an assembly structure diagram of an integrated welding equipment for automobile body assembly according to the present invention;

[0028] Figure 2 This is a top view of an integrated welding device for assembling automobile bodies according to the present invention;

[0029] Figure 3 for Figure 2 Schematic diagram of the structure of the mid-section AA;

[0030] Figure 4 for Figure 3 A partial view of section B;

[0031] Figure 5 for Figure 3 A partial view of section C;

[0032] Figure 6 for Figure 3 A partial view of section D;

[0033] Figure 7 for Figure 3 Schematic diagram of the mid-section EE;

[0034] Figure 8 This is a diagram showing the internal structure of the welding torch portion of an integrated welding equipment for automobile body assembly according to the present invention.

[0035] Figure 9 for Figure 8 A partial view of section F in the middle.

[0036] The attached diagram lists the components represented by each number as follows:

[0037] 2. Adjusting frame; 3. Working frame; 4. Support platform; 5. Control and adjusting platform; 6. Clamping cylinder; 7. Fixed rod; 8. Connecting rod; 9. Adjusting slide groove; 10. Driven slider; 11. Drive cylinder; 12. Adjusting rod; 13. Connecting cable; 14. Welding torch; 15. Suction plate; 16. Limit sleeve; 17. Welding head; 18. Connecting plate; 19. Rotary tube; 20. Roller; 21. Pressure spring; 22. Hydraulic transmission pipe; 23. Drive cylinder; 24. Driven sprocket; 25. Drive sprocket; 26. Transmission chain; 27. Adjusting motor; 28. Drive screw; 29. ​​Circular slide groove; 30. Adjusting slider; 31. Clamping plate. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] In the description of this invention, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0040] Please see Figures 1-8As shown, the present invention is an integrated welding equipment for assembling automobile bodies, including a clamping frame, an adjusting frame 2, and a working frame 3. The clamping frame includes two sets of support platforms 4 and one set of control adjusting platforms 5, and the two sets of support platforms 4 and the control adjusting platforms 5 are respectively arranged on the peripheral side of the adjusting frame 2; the support platforms 4 and the control adjusting platforms 5 are welded and fixed to the adjusting frame 2; the working frame 3 is nested inside the adjusting frame 2 and rotates and engages with the adjusting frame 2; wherein, in the above structure, the clamping frame is used to clamp the various skeleton components of the automobile body to be assembled, the adjusting frame 2 rotates and slides inside the clamping frame to adjust the position of the welding tools, and the working frame 3 is used to install the welding tools;

[0041] The adjustment frame 2 has a ring-shaped plate structure, and several adjustment frames 2 are welded and fixed to the support platform 4 and the control adjustment platform 5. The two sets of support platforms 4 and control adjustment platforms 5 are arranged in a ring array outside the adjustment frame 2, with the support platforms 4 located at the bottom and the control adjustment platforms 5 located at the top, between the two sets of support platforms 4. In the above structure, the two sets of support platforms 4 are used to support and fix the various parts of the clamping frame, adjustment frame 2 and work frame 3, and at the same time support and fix the car body frame, which facilitates the subsequent welding work. There is a gap between two adjacent adjustment frames 2, and clamping cylinders 6 are bolted to the surfaces of the support platform 4 and the control adjustment platform 5. The output shaft of the clamping cylinder 6 extends into the interior of the adjustment frame 2 through the gap between two adjacent adjustment frames 2. The gap between two adjacent adjustment frames 2 allows the operator to enter the equipment to perform welding work and fine adjustments on the car body frame components, and also facilitates the observation of the actual welding situation.

[0042] The adjustment frame 2 includes three sets of "U"-shaped frames. Each "U"-shaped frame includes a fixed rod 7 and a connecting rod 8, and the two ends of the fixed rod 7 are welded and fixed to the connecting rod 8. Based on the above structure, since the control adjustment table 5 and the two sets of support tables 4 divide the internal space of the equipment into three parts, a set of "U"-shaped frames is set in the area between two adjacent sets of clamping cylinders 6, and welding work is carried out in their respective areas. An adjustment groove 9 is provided on one surface of the fixed rod 7, and a driven slider 10 is slidably engaged inside the adjustment groove 9. A drive cylinder 11 is welded to one surface of the driven slider 10, and an adjustment rod 12 is slidably engaged inside the drive cylinder 11, forming a telescopic rod structure with the adjustment rod 12. A connecting cable 13 is bolted to one side of the drive cylinder 11, and a welding torch 1 is bolted and fixed to the other end of the connecting cable 13. 4; The connecting cable 13 is a flexible wire structure, which is used to connect the drive cylinder 11 and the welding gun 14 to each other, and to connect the welding gun 14 to an external power source. One surface of the welding gun 14 is welded with a suction plate 15, and the other surface is provided with a limiting sleeve 16 and a welding head 17. The welding head 17 is nested inside the limiting sleeve 16 and is fixedly connected to the welding gun 14. The lower end of the adjusting rod 12 is welded with a connecting plate 18, wherein the connecting plate 18 and the suction plate 15 are both electromagnetic plates, and the two are magnetically attracted to each other when energized. When energized, the connecting plate 18 and the suction plate 15 are magnetically attracted and fixedly connected, which facilitates large-scale overall welding of the vehicle body frame components. When the power is off, the operator can remove the welding gun 14 for manual operation, thereby fine-tuning and controlling the details of the welding work.

[0043] Preferably, the lower end of the limiting sleeve 16 is rotatably engaged with a rotating tube 19, and rollers 20 are rotatably connected to opposite sides of the rotating tube 19. The rotating tube 19 and the rollers 20 form a universal wheel structure. When performing overall welding of the body frame components, the universal wheel structure facilitates the movement of the welding torch 14 on the weld surface, thereby adjusting the welding position. The universal wheel structure can flexibly adapt to the longitudinal and axial movement process when adjusting the weld. The lower end of the welding head 17 extends through the rotating tube 19 to the space between the two opposite rollers 20, and the welding working end of the welding head 17 is higher than the outer edge of the rollers 20. During overall welding, the welding head 17 maintains a fixed distance from the weld, facilitating the actual welding work. It should be added that, due to the structural characteristics of this part, the welding torch 14 and the welding head 17 are suitable for laser welding devices, that is, there is a certain distance between the welding head 17 and the surface of the welded part, which can ensure efficient heat dissipation and rapid cooling.

[0044] Preferably, a pressure spring 21 is welded between the upper end of the adjusting rod 12 and the inner surface of the drive cylinder 11. The initial state of the pressure spring 21 is a compressed state. When the overall welding work is carried out, the universal wheel can be supported by the welding part, causing the adjusting rod 12 to retract and adapt to the position of different component parts. The suction plate 15 and the connecting plate 18 are electrically connected to the drive cylinder 11. The adjusting rod 12 and the limiting sleeve 16 are both equipped with start switches, which control the power supply circuit of the connecting plate 18 and the suction plate 15 respectively. In actual work, the limiting sleeve 16 can be used as a hand handle for the welding gun 14. The operator can hold the limiting sleeve 16 and control the start switch to cut off or supply power to the suction plate 15 and the connecting plate 18 for flexible use.

[0045] Preferably, a hydraulic transmission pipe 22 is bolted between the clamping cylinder 6 on the surface of the support platform 4 and the clamping cylinder 6 on the surface of the control and adjustment platform 5, wherein the hydraulic transmission pipe 22 is filled with hydraulic oil; a drive cylinder 23 is installed between two adjacent clamping cylinders 6 on the surface of the control and adjustment platform 5, and the output end of the drive cylinder 23 is connected to the clamping cylinder 6; the drive cylinder 23 is an electric hydraulic cylinder, wherein the electric hydraulic cylinder has multiple output ends, which correspond to each clamping cylinder 6 on the surface of the control and adjustment platform 5 respectively. When started, the drive cylinder 23 drives the clamping cylinder 6 on the surface of the control and adjustment platform 5 to work, and the three adjacent clamping cylinders 6 are connected through the hydraulic transmission pipe 22, thereby realizing multi-directional output clamping.

[0046] Preferably, the clamping cylinder 6 and the hydraulic transmission pipe 22 form a hydraulic clamping group, and the three sets of "U"-shaped frames are respectively set between two adjacent clamping cylinders 6 in the same hydraulic clamping group; during the welding operation, the "U"-shaped frame and the clamping cylinder 6 are staggered and can cover different positions of the body frame component during the rotation of the adjusting frame 2, thereby realizing the overall welding of the welded parts.

[0047] Preferably, the connecting rods 8 of several "U"-shaped frames are welded and fixed to each other, and a driven shaft is welded to one surface of the weld, with a driven sprocket 24 welded to one end of the driven shaft; a drive sprocket 25 is connected to a rotating shaft on one side of the support platform 4, and a transmission chain 26 is installed between the drive sprocket 25 and the driven sprocket 24; in actual operation, the drive sprocket 25 is the driving component for equipment adjustment, and the sprocket and chain transmission structure drives the adjustment frame 2 to rotate as a whole, thereby realizing the longitudinal welding work of the welded parts.

[0048] Preferably, an adjusting motor 27 is bolted to the surface of the connecting rod 8 of the three sets of "U"-shaped frames. A drive screw 28 is welded to one end of the output shaft of the adjusting motor 27, and the drive screw 28 extends into the interior of the adjusting slide groove 9 and forms a screw structure with the driven slider 10 through a thread. When the adjusting motor 27 is started, the screw structure drives the driven slider 10 and the welding gun 14 to slide axially to achieve axial welding work.

[0049] Preferably, the inner surface of the adjusting frame 2 is provided with an annular groove 29, and a plurality of adjusting sliders 30 are welded to the outer side of the fixing rod 7. The adjusting sliders 30 are disposed inside the annular groove 29 and are slidably engaged with the annular groove 29. One end of the output shaft of the clamping cylinder 6 is welded with a clamping plate 31, and the positions of the plurality of clamping plates 31 are opposite to each other, forming a clamping structure. It should be further noted that in this invention, the two sets of support platforms 4 and one set of control adjusting platforms 5 divide the internal space of the equipment into three parts. The corresponding three sets of clamping plates 31 also form a three-way clamping structure, which can provide stable support and clamping for the welded parts to the maximum extent. At the same time, the three sets of welding guns 14 structures corresponding to the three gaps can minimize welding dead angles while ensuring stable clamping, and further improve welding efficiency.

[0050] Workflow:

[0051] In combination with the above structure, when the integrated welding equipment of the present invention is working, the drive cylinder 23 is first started, and the clamping plates 31 of each set of clamping cylinders 6 are adjusted to the initial position using the hydraulic transmission principle. Then, the body frame component to be welded is placed inside the adjustment frame 2, and the drive cylinder 23 is started again. The clamping plates 31 form a jacket structure to clamp and fix the welded parts from multiple directions. After clamping is completed, the welding work can begin.

[0052] Based on the aforementioned structural design, the actual welding operation modes of the welding equipment of the present invention include the following:

[0053] The first part involves pre-forming and spot welding the vehicle body frame components. Operators outside the equipment control the rotation of the drive sprocket 25, using the chain drive principle to rotate each group of "U"-shaped frames on the adjustment frame 2. During rotation, spot welding is performed within the working area of ​​each group of welding torches 14. It should be noted that each group of welding torches 14 shares a common power supply and control switch. The control switch is continuously activated and deactivated during the spot welding process. Then, by activating the adjustment motor 27, each group of welding torches 14 can move axially to different welding points.

[0054] In the second part, the points are connected to form a line to reinforce the weld points from the previous step. During this process, the adjustment frame 2 is still controlled externally by the operator to drive the welding torch 14 to perform linear welding within its effective range. During this process, due to the positional relationship between the welding head 17 and the outer edge of the roller 20, the weld seam between the welding head 17 and the welded part is always kept at a fixed distance. At the same time, the welding position can be flexibly adjusted according to different structural positions using the telescopic rod structure. During this process, the pressure spring 21 presses the welding torch 14 tightly against the welded part to ensure welding quality.

[0055] The third part is the final filling weld. Due to the obstruction of the clamping cylinder 6 and the clamping plate 31, there are a few positions in the welded parts that are not involved in the welding work. At this time, the staff needs to enter the equipment to manually fill the weld. Specifically, when the staff holds the limiting sleeve 16 or the adjusting rod 12, the start switch is pressed to disconnect the electromagnet's power circuit, the magnetic attraction disappears, and the limiting sleeve 16 is used as the handle of the welding gun 14 for hand-held welding work, which can fill the weld in some dead corners or details.

[0056] It should be further explained that the integrated welding equipment in this technical solution is mainly for multi-point, multi-position integrated welding of vehicle body frame components, and the operation process is simpler than purely manual operation according to actual welding needs. To differentiate it from purely manual operation, this technical solution can also add a CNC module inside according to actual needs to achieve semi-automatic welding, improving welding efficiency while ensuring high quality and high precision. Specifically, the CNC module includes a microcomputer controller and an external motor. The microcomputer controller has a built-in microcontroller program that can supply power and control the working status of the drive cylinder 23, the adjusting motor 27, the welding torch 14, and the external motor respectively. In addition, the output shaft of the external motor can be directly connected to the drive sprocket 25 to achieve automated control and adjustment of the welding point. At the same time, since the structure of the car body is not a regular structure, when adjusting the axial position of the welding torch 14, the three sets of adjusting motors 27 are connected in parallel or work through independent control modules, thereby achieving asynchronous operation of the three sets of welding torches 14.

[0057] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0058] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An integrated welding equipment for assembling automobile bodies, comprising a clamping frame, an adjusting frame (2), and a work frame (3), characterized in that: The clamping frame includes two sets of support platforms (4) and one set of control adjustment platforms (5), and the two sets of support platforms (4) and the control adjustment platforms (5) are respectively arranged on the periphery of the adjustment frame (2); the support platforms (4) and the control adjustment platforms (5) are welded and fixed to the adjustment frame (2); the working frame (3) is nested inside the adjustment frame (2) and rotates and engages with the adjustment frame (2); The adjustment frame (2) is a ring plate structure, and several adjustment frames (2) are welded and fixed to the support platform (4) and the control adjustment platform (5); the two sets of support platforms (4) and control adjustment platforms (5) are arranged in a ring array outside the adjustment frame (2), with the support platform (4) located below and the control adjustment platform (5) located above, and located between the two sets of support platforms (4); there is a gap between two adjacent adjustment frames (2), and clamping cylinders (6) are bolted and fixed to the surfaces of the support platform (4) and the control adjustment platform (5); the output shaft of the clamping cylinder (6) extends into the interior of the adjustment frame (2) through the gap between two adjacent adjustment frames (2); The work frame (3) includes three sets of "U"-shaped frames. Each "U"-shaped frame includes a fixed rod (7) and a connecting rod (8), and both ends of the fixed rod (7) are welded and fixed to the connecting rod (8). An adjusting groove (9) is provided on one surface of the fixed rod (7), and a driven slider (10) is slidably engaged inside the adjusting groove (9). A drive cylinder (11) is welded to one surface of the driven slider (10), and an adjusting rod (12) is slidably engaged inside the drive cylinder (11). The adjusting rod (12) and the drive cylinder (11) form a telescopic rod structure. A connecting cable (13) is bolted to one side of the drive cylinder (11), and a welding gun (14) is bolted to the other end of the connecting cable (13). A suction plate (15) is welded to one surface of the welding gun (14), and a limit sleeve (16) and a welding head (17) are provided on the other surface. The welding head (17) is nested inside the limit sleeve (16) and fixedly connected to the welding gun (14). A connecting plate (18) is welded to the lower end of the adjusting rod (12). Both the connecting plate (18) and the suction plate (15) are electromagnetic plates, and they are magnetically attracted to each other when energized.

2. The integrated welding apparatus for assembling a vehicle body according to claim 1, wherein The lower end of the limiting sleeve (16) is rotatably engaged with a spiral tube (19), and rollers (20) are rotatably connected to the opposite sides of the spiral tube (19). The spiral tube (19) and the rollers (20) form a universal wheel structure. The lower end of the welding head (17) extends through the spiral tube (19) to the space between the two opposite rollers (20), and the welding working end of the welding head (17) is higher than the outer edge of the rollers (20).

3. The integrated welding apparatus for assembling a vehicle body according to claim 2, wherein A pressure spring (21) is welded between the upper end of the adjusting rod (12) and the inner surface of the drive cylinder (11); the suction plate (15) and the connecting plate (18) are both electrically connected to the drive cylinder (11), and the adjusting rod (12) and the limiting sleeve (16) are both equipped with start switches to control the power supply circuit of the connecting plate (18) and the suction plate (15) respectively.

4. The integrated welding apparatus for assembling a vehicle body according to claim 3, wherein A hydraulic transmission pipe (22) is bolted between the clamping cylinder (6) on the surface of the support platform (4) and the clamping cylinder (6) on the surface of the control adjustment platform (5); a drive cylinder (23) is installed between two adjacent clamping cylinders (6) on the surface of the control adjustment platform (5), and the output end of the drive cylinder (23) is connected to the clamping cylinder (6); the drive cylinder (23) is an electric hydraulic cylinder.

5. The integrated welding apparatus for assembling a vehicle body according to claim 4, wherein The clamping cylinder (6) and the hydraulic transmission pipe (22) form a hydraulic clamping group, and the three sets of "U"-shaped frames are respectively set between two adjacent clamping cylinders (6) in the same hydraulic clamping group.

6. The integrated welding apparatus for assembling a vehicle body according to claim 5, wherein Several connecting rods (8) of the "U"-shaped frame are welded together and fixed, and a driven shaft is welded to one surface of the weld, and a driven sprocket (24) is welded to one end of the driven shaft; a drive sprocket (25) is connected to the rotating shaft on one side of the support platform (4), and a transmission chain (26) is installed between the drive sprocket (25) and the driven sprocket (24).

7. The integrated welding apparatus for assembling a vehicle body according to claim 6, wherein The surface of the connecting rods (8) of the three sets of "U"-shaped frames is bolted with an adjusting motor (27). One end of the output shaft of the adjusting motor (27) is welded with a drive screw (28), and the drive screw (28) extends into the interior of the adjusting slide (9) and forms a screw structure with the driven slider (10) by opening a thread.

8. The integrated welding apparatus for assembling a vehicle body according to claim 7, wherein The inner surface of the adjusting frame (2) is provided with an annular groove (29). Several adjusting sliders (30) are welded to the outer side of the fixed rod (7), and the adjusting sliders (30) are set inside the annular groove (29) and slide and engage with the annular groove (29). One end of the output shaft of the clamping cylinder (6) is welded with a clamping plate (31), and the positions of several clamping plates (31) are opposite to each other to form a clamping structure.

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