A welding equipment for automobile production line

Abstract

The present invention relates to a welding device for automobile production lines applied in the field of automobile parts processing. After welding is completed, for the welding slag that needs to be knocked and cleaned on the weld surface, the overall length of the extrusion support rod needs to be adjusted first, and then the clamping motor is started to drive the clamping plates to approach each other and clamp the weld surface. At the same time, the lower end of the extrusion support rod drives the clamping plate to move downward to squeeze and contact the connecting surface of the weld and the welding slag, so that the connecting surface of the welding slag and the weld will not be damaged during the subsequent knocking and cleaning of the welding slag, thereby protecting the integrity of the weld. After that, the knocking motor is started to drive the crank rocker unit to work, and the upper part of the welding slag clamped by the clamping plate is knocked and cleaned. After the cleaning is completed, the small amount of welding slag remaining on the weld surface can be polished and cleaned by grinding operation. In addition, the shaft rod member and the sliding arc member can be used to deform the clamping plate to adapt to the tower-shaped welding slag clamping process.

Description

Technical Field

[0001] The present invention relates to welding equipment, in particular to welding equipment for automobile production lines applied in the field of automobile parts processing. Background Art

[0002] With the development of industrial automation technology, automated welding robotic systems have become a key tool for improving production efficiency and ensuring welding quality. These systems can be programmed to perform complex welding tasks, improving production consistency and repeatability. They typically utilize lifting and angle-adjustable clamping equipment to automatically weld automotive parts, and use suction structures to collect welding fumes. However, the suction effect makes it difficult to remove residual slag from the weld surface.

[0003] The specification of Chinese invention patent CN202410118763.X discloses a welding machine for the production and assembly of automobile headlights. It uses magnetic attraction to separate the iron in the welding slag, realizing the recycling of resources. In addition, during the magnetic attraction process, a spreading plate can be used to move and flatten the welding slag for better adsorption effect. The welding position and welding angle of the upper and lower headlights can be adjusted, thereby improving the accuracy of welding and ensuring the stability of the upper and lower headlights during the welding process.

[0004] Existing welding equipment uses an eccentric design to achieve a knocking effect, thereby breaking up the stable residual welding slag. However, in the actual welding process, the welding slag will be partially fixed in the weld and partially protrude from the surface of the welded part. At this time, knocking will cause the part of the welding slag fixed in the weld to swing, thereby damaging the weld. Therefore, the method of knocking to clean the welding slag needs to be improved. Summary of the Invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is how to avoid damaging the integrity of the weld at the connection between the weld and the slag when knocking and cleaning the weld slag on the weld surface, thereby protecting the quality of the weld.

[0006] In order to solve the above problems, the present invention provides a welding equipment for an automobile production line, including a lifting frame, a vertically arranged translation frame is slidably installed on the surface of the lifting frame, a moving seat is slidably installed on the surface of the translation frame, an auxiliary second frame is installed on the surface of the moving seat, the surface of the auxiliary second frame is slidably connected to the vertically arranged auxiliary first frame, the surface of the auxiliary first frame is slidably connected to the mounting frame, an extension bracket is installed on the surface of the mounting frame, and a multi-axis arm is installed at the bottom of the mounting frame and the extension bracket, wherein a welding gun is installed inside the multi-axis arm at the bottom of the mounting frame, a clamping motor is installed at the bottom of the extension bracket through the multi-axis arm, the output end of the clamping motor is connected to a rotating rod, and the surface of the rotating rod is provided with symmetrically arranged screw areas, the surface of each screw area is sleeved with a moving block, and symmetrically arranged clamping plates are arranged below the moving block, and the top of the clamping plate and the bottom of the moving block are movably connected to a scissors frame made of two extruded support rods through a hinged ball, the top of one of the clamping plates is installed with a knocking motor, one side of the knocking motor is connected to a crank rocker unit, and the crank rocker unit is located on the side of the clamping motor away from the multi-axis arm.

[0007] In the above-mentioned welding equipment for automobile production lines, the clamping plate, extrusion support rod, clamping motor and rotating rod are coordinated to effectively protect the integrity of the weld at the connection between the weld and the slag when knocking and cleaning the weld slag on the weld surface, thereby protecting the quality of the weld.

[0008] As a further improvement of the present application, the crank rocker unit includes a rocker connected to the output end of the knocking motor, one side of the rocker is connected to a vertical rod through a bearing, and the surface of the vertical rod is connected to the surface of the knocking motor through a connecting rod constraint, the top of the vertical rod is connected to the impact rod through a shaft, and the outer surface of the impact rod is slidably sleeved with a covering clamp, and the covering clamp is movably connected to the rocker.

[0009] As a further improvement of the present application, the length of the impact rod is greater than the sum of the lengths of the vertical rod and the rocker arm, and the bottom end of the impact rod in the vertical state is located above two-thirds of the height of the clamping plate itself.

[0010] As a further improvement of the present application, the extruded support rod includes a constraint rod and a movable rod slidably connected to the inside of the constraint rod, wherein a shaft is installed through the inside of the constraint rod, an electromagnetic block is fixedly installed on the inner wall of the constraint rod, and the installation position of the electromagnetic block is located on the side of the shaft close to the movable rod, and one end of the movable rod is connected to a magnetic block.

[0011] As a further improvement of the present application, the lifting frame, the translation frame, the auxiliary frame 1, the auxiliary frame 2 and the two multi-axis arms are all electric actuators, and the length of the rocker is less than the horizontal distance between the knocking motor and the extrusion support rod.

[0012] As a further improvement of the present application, it also includes a feedback system installed on the lifting frame, the feedback system includes an image acquisition module, a data analysis module and a feedback execution module, wherein the image acquisition module includes an image collector installed on the bottom surface of the extension bracket, which is used to obtain the residual welding slag in the weld after welding with the welding gun and transmit it to the data analysis module for analysis and judgment of the data of the welding slag protruding from the weld surface, and the feedback execution module adjusts the length of the extrusion support rod according to the data of the data analysis module.

[0013] As another improvement of the present application, the clamping plate is composed of an upper plate and a lower plate, wherein the upper plate and the lower plate are connected by an axis rod, and the upper plate and the axis rod are fixedly connected, and the lower plate and the axis rod are rotatably connected, and the surfaces of the upper plate and the lower plate are connected by a retractable sliding arc member.

[0014] As another improved supplement of the present application, the center of the shaft member is located on the side of the central axis of the clamping plate close to the sliding arc member, and the diameter of the shaft member is greater than the thickness of the clamping plate, and the diameter of the sliding arc member is greater than the diameter of the shaft member.

[0015] To sum up, when performing welding processing of automobile parts, the present application utilizes the cooperation of the lifting frame, the translation frame, the auxiliary frame 1 and the auxiliary frame 2 and the multi-axis arm to assist the welding gun to adjust the angle in multiple dimensions to meet the welding requirements. After welding is completed, for the welding slag that needs to be knocked and cleaned on the weld surface, it is necessary to first adjust the overall length of the extrusion support rod, and then start the clamping motor to drive the clamping plates to approach each other and clamp the weld surface. At the same time, the lower end of the extrusion support rod drives the clamping plate to move downward to squeeze and contact the connecting surface of the weld and the welding slag, so that the subsequent knocking and cleaning of the welding slag will not damage the connecting surface of the weld and thus protect the integrity of the weld. After that, the knocking motor is started to drive the crank rocker unit to knock and clean the upper part of the welding slag clamped by the clamping plate. After cleaning, the grinding operation can be used to grind and clean the small amount of welding slag remaining on the weld surface. In addition, the shaft rod and the sliding arc member can be used to deform the clamping plate to adapt to the tower-shaped welding slag clamping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of this application;

[0017] Figure 2 This is an installation diagram of the auxiliary frame 1, auxiliary frame 2, mounting frame, multi-axis arm and welding gun of the first embodiment of the present application;

[0018] Figure 3 This is an installation diagram of the clamping plate, clamping motor, knocking motor, mounting bracket, multi-axis arm and welding gun of the first embodiment of the present application;

[0019] Figure 4This is an installation diagram of the clamping motor, the extrusion support rod, the percussion motor, and the crank rocker unit of the first embodiment of the present application;

[0020] Figure 5 This is an installation diagram of the crank rocker unit according to the first embodiment of the present application;

[0021] Figure 6 A plan view of the clamping plate and crank rocker unit according to the first embodiment of the present application;

[0022] Figure 7 This is a diagram of the state in which the ends of the extruded support rods are close to each other and pressed downwards in the first embodiment of the present application;

[0023] Figure 8 This is a diagram showing the internal structure of an extruded support rod according to the first embodiment of the present application;

[0024] Figure 9 This is a state diagram of different degrees of downward pressure when the length of the extrusion support rod is adjusted and close to the same distance in the first embodiment of the present application;

[0025] Figure 10 This is an installation diagram of the sliding arc member and the shaft member according to the second embodiment of the present application;

[0026] Figure 11 This is a diagram showing the adjustment state of the upper plate and the lower plate according to the second embodiment of the present application;

[0027] Figure 12 This is a state diagram of the weld being destroyed after the welding slag is directly struck under the existing technology in the first embodiment of the present application.

[0028] Description of the numbers in the figure:

[0029] 1. Lifting frame; 2. Translation frame; 3. Auxiliary frame 1; 4. Auxiliary frame 2; 5. Mounting frame; 6. Multi-axis arm; 7. Welding gun; 8. Clamping motor; 9. Tapping motor; 10. Clamping plate; 11. Moving block; 12. Extrusion support rod; 121. Constraint rod; 122. Movable rod; 13. Crank rocker unit; 131. Impact rod; 132. Vertical rod; 133. Rocker; 14. Electromagnetic block; 15. Magnetic block; 16. Sliding arc part; 17. Shaft rod part. DETAILED DESCRIPTION

[0030] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0031] The first implementation method:

[0032] Figure 1-4The figure shows a welding device for automobile production line, including a lifting frame 1, a vertically arranged translation frame 2 is slidably mounted on the surface of the lifting frame 1, a movable seat is slidably mounted on the surface of the translation frame 2, an auxiliary second frame 4 is mounted on the surface of the movable seat, a vertically arranged auxiliary first frame 3 is slidably connected to the surface of the auxiliary first frame 3, a mounting frame 5 is slidably connected to the surface of the mounting frame 5, an extension bracket is mounted on the surface of the mounting frame 5, and a multi-axis arm 6 is mounted on the bottom of the mounting frame 5 and the extension bracket, wherein a welding gun 7 is mounted inside the multi-axis arm 6 at the bottom of the mounting frame 5, and a welding gun 7 is mounted on the bottom of the extension bracket through the multi-axis arm 6. The clamping motor 8 is connected to the output end of the clamping motor 8 with a rotating rod, and the surface of the rotating rod is provided with symmetrically arranged screw areas, and the surface of each screw area is sleeved with a moving block 11, and symmetrically arranged clamping plates 10 are arranged below the moving block 11, and the top of the clamping plate 10 and the bottom of the moving block 11 are movably connected to a scissors frame made of two extruded support rods 12 through a hinged ball, and a knocking motor 9 is installed on the top of one of the clamping plates 10, and a crank rocker unit 13 is connected to one side of the knocking motor 9, and the crank rocker unit 13 is located on the side of the clamping motor 8 away from the multi-axis arm 6.

[0033] Figure 5 The crank rocker unit 13 is shown to include a rocker 133 connected to the output end of the knocking motor 9, one side of the rocker 133 is connected to the vertical rod 132 through a bearing, and the surface of the vertical rod 132 is connected to the surface of the knocking motor 9 through a connecting rod constraint, the top of the vertical rod 132 is connected to the impact rod 131 through a shaft, and the outer surface of the impact rod 131 is slidably sleeved with a covering clamp, and the covering clamp is movably connected to the rocker 133.

[0034] Figure 6 It is shown that the length of the impact rod 131 is greater than the sum of the lengths of the vertical rod 132 and the rocker 133, and the bottom end of the impact rod 131 in the vertical state is located above two-thirds of the height of the clamping plate 10 itself.

[0035] The lifting frame 1 , the translation frame 2 , the auxiliary frame 1 3 , the auxiliary frame 2 4 and the two multi-axis arms 6 are all electric actuators, and the length of the rocker 133 is smaller than the horizontal distance between the knocking motor 9 and the extrusion support rod 12 .

[0036] Specifically, when welding automobile parts, the welding gun 7 can be adjusted to a suitable angle and position with the help of the lifting frame 1, the translation frame 2, the auxiliary frame 1 3 and the auxiliary frame 2 4 and the multi-axis arm 6 to perform welding processing. After the welding is completed, the image acquisition device is used to collect and process the image of the welded surface after the welding is completed, and the corresponding image data is transmitted to the data analysis module to analyze whether the degree of the welding slag protruding from the weld surface exceeds the set threshold (if it exceeds the threshold, the protruding part of the welding slag needs to be knocked and cleaned; if it does not exceed the threshold, it indicates that the welding slag is less protruding, and subsequent If the threshold is exceeded, the extension bracket needs to be moved to the position above the welding slag that needs to be knocked and cleaned, and then the clamping motor 8 is started to drive the two moving blocks 11 to approach each other, and then drive the ends of the two squeezing support rods 12 to approach each other. In the process of the ends of the squeezing support rods 12 approaching each other, since the rotating rod and the clamping motor 8 are both fixedly installed, the ends of the squeezing support rods 12 move downward while approaching each other, thereby driving the clamping plate 10 to squeeze the protruding welding slag while also forming an extrusion effect on the surface of the weld (such as Figure 7 As shown in FIG, because the end of the extrusion support rod 12 moves downward to play an extrusion role), when the protruding slag surface is subsequently struck, the contact portion between the slag and the weld is clamped and squeezed, and the connection stability with the weld is enhanced, and then when the slag is subsequently struck, the slag will not be "pulled out by the roots" (such as Figure 12 As shown in the figure, it can avoid the phenomenon of welding slag being dumped and damaging the weld during knocking and cleaning;

[0037] After the knocking, some of the welding slag remains on the surface of the weld (ie the portion clamped by the clamping plate 10 and not knocked clean), which can be cleaned later using a grinding piece.

[0038] When the striking motor 9 drives the crank rocker unit 13 to work and the striking rod 131 swings to strike the welding slag, the striking rod 131 is limited by the size of the rocker 133, and its swing range is limited, and it will not strike the position of the extrusion support rod 12. Therefore, when clamping, the welding slag to be knocked and cleaned needs to be within the effective swing range of the striking rod 131 (that is, the clamping contact position of the clamping plate 10 and the welding slag needs to be adjusted).

[0039] Figure 8 As shown, the extrusion support rod 12 includes a constraint rod 121 and a movable rod 122 slidably connected to the inside of the constraint rod 121, wherein a shaft is installed through the inside of the constraint rod 121, and an electromagnetic block 14 is fixedly installed on the inner wall of the constraint rod 121. The installation position of the electromagnetic block 14 is located on the side of the shaft close to the movable rod 122, and one end of the movable rod 122 is connected to a magnetic block 15.

[0040] Specifically, according to the protrusion degree of the welding slag, the overall length of the extrusion support rod 12 is adjusted, and then the downward extrusion movement distance of the clamping plate 10 when the clamping plate 10 is close to the clamping is adjusted. By adjusting the magnetic attraction force between the electromagnetic block 14 and the magnetic moving block 15, the length of the extrusion support rod 12 can be adjusted ( Figure 9 shown).

[0041] It also includes a feedback system installed on the lifting frame 1, the feedback system includes an image acquisition module, a data analysis module and a feedback execution module, wherein the image acquisition module includes an image collector installed on the bottom surface of the extension bracket, which is used to obtain the situation of residual welding slag in the weld after welding with the welding gun 7 and transmit it to the data analysis module for analysis and judgment of the data of the welding slag protruding from the weld surface. The feedback execution module adjusts the length of the extrusion support rod 12 according to the data of the data analysis module.

[0042] Second implementation method:

[0043] Figure 10 It is shown that the clamping plate 10 is composed of an upper plate and a lower plate, wherein the upper plate and the lower plate are connected by an axis rod 17, and the upper plate and the axis rod 17 are fixedly connected, and the lower plate and the axis rod 17 are rotatably connected, and the surfaces of the upper plate and the lower plate are connected by a retractable sliding arc member 16.

[0044] The center of the shaft member 17 is located on the side of the central axis of the clamping plate 10 close to the sliding arc member 16, and the diameter of the shaft member 17 is greater than the thickness of the clamping plate 10, and the diameter of the sliding arc member 16 is greater than the diameter of the shaft member 17.

[0045] Different from the first embodiment, in this embodiment, when the welding slag protrudes from the weld surface in a tower shape (also a gradient structure that is narrow at the top and wide at the bottom), the clamping effect of the clamping plate 10 is weakened.

[0046] Specifically, for the tower-shaped welding slag, it is necessary to use the sliding arc member 16 to adjust the angle between the upper plate and the lower plate (but this does not affect the use of the state in which the upper plate and the lower plate are in the same plane in the vertical state to form the clamping plate 10 of the first embodiment), so that the lower plate can be fitted to the inclined surface of the tower member to the greatest extent, and then the adjustment length of the sliding arc member 16 is fixed (the method includes but is not limited to manual adjustment or other methods). After the angle is adjusted, the upper plate and the weld surface protruding from the welding slag are in a clamping contact state. However, since the upper plate is higher than the lower plate, the degree of the residual protruding part of the welding slag after knocking and cleaning is small, which is convenient for subsequent grinding and cleaning (such as Figure 11 shown).

[0047] In summary, when performing welding processing on automobile parts, the present application utilizes the cooperation of the lifting frame 1, the translation frame 2, the auxiliary frame 1 3 and the auxiliary frame 2 4 and the multi-axis arm 6, and the auxiliary welding gun 7 is adjusted in multiple dimensions to meet the welding requirements. After the welding is completed, for the welding slag that needs to be knocked and cleaned on the weld surface, it is necessary to first adjust the overall length of the extrusion support rod 12, and then start the clamping motor 8 to drive the clamping plates 10 to approach each other and clamp the weld surface. At the same time, the lower end of the extrusion support rod 12 drives the clamping plate 10 to move downward for welding. The connecting surface of the weld seam and the welding slag is squeezed into contact, so that the connecting surface of the welding slag and the weld will not be damaged when the welding slag is subsequently knocked to clean it, thereby protecting the integrity of the weld. After that, the knocking motor 9 is started to drive the crank rocker unit 13 to work, and the upper part of the welding slag clamped by the clamping plate 10 is knocked and cleaned. After cleaning, the grinding operation can be used to grind and clean the small amount of welding slag remaining on the surface of the weld. In addition, the shaft rod part 17 and the sliding arc part 16 can be used to deform the clamping plate 10 to adapt to the tower-shaped welding slag clamping treatment.

[0048] In view of current actual needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. A welding device for an automobile production line, comprising a lifting frame (1), characterized in that: The lifting frame (1) is slidably mounted on the surface of a vertically arranged translation frame (2), the translation frame (2) is slidably mounted on the surface of a moving seat, the moving seat is mounted on the surface of an auxiliary second frame (4), the surface of the auxiliary second frame (4) is slidably connected to a vertically arranged auxiliary first frame (3), the surface of the auxiliary first frame (3) is slidably connected to a mounting frame (5), the surface of the mounting frame (5) is mounted with an extension bracket, the bottoms of the mounting frame (5) and the extension bracket are both mounted with a multi-axis arm (6), wherein a welding gun (7) is mounted inside the multi-axis arm (6) at the bottom of the mounting frame (5), and a clamping motor (7) is mounted on the bottom of the extension bracket through the multi-axis arm (6). 8), the output end of the clamping motor (8) is connected to a rotating rod, and the surface of the rotating rod is provided with symmetrically arranged screw areas, and the surface of each screw area is sleeved with a moving block (11), and symmetrically arranged clamping plates (10) are arranged below the moving block (11), and the top of the clamping plate (10) and the bottom of the moving block (11) are movably connected to a scissor frame made of two extruded support rods (12) through a hinge ball, and a knocking motor (9) is installed at the top of one of the clamping plates (10), and a crank rocker unit (13) is connected to one side of the knocking motor (9), and the crank rocker unit (13) is located on the side of the clamping motor (8) away from the multi-axis arm (6).

2. The welding equipment for automobile production line according to claim 1, characterized in that: The crank rocker unit (13) comprises a rocker (133) connected to the output end of the knocking motor (9); one side of the rocker (133) is connected to a vertical rod (132) via a bearing; the surface of the vertical rod (132) is connected to the surface of the knocking motor (9) via a connecting rod constraint; the top end of the vertical rod (132) is connected to a striking rod (131) via a shaft; the outer surface of the striking rod (131) is slidably sleeved with a covering clamp; the covering clamp is movably connected to the rocker (133).

3. The welding equipment for automobile production line according to claim 2, characterized in that: The length of the impact rod (131) is greater than the sum of the lengths of the vertical rod (132) and the rocker (133), and the bottom end of the impact rod (131) is located above two-thirds of the height of the clamping plate (10) in a vertical state.

4. The welding equipment for automobile production line according to claim 1, characterized in that: The extrusion support rod (12) comprises a restraining rod (121) and a movable rod (122) slidably connected to the interior of the restraining rod (121), wherein a shaft is installed through the interior of the restraining rod (121), an electromagnetic block (14) is fixedly installed on the inner wall of the restraining rod (121), and the installation position of the electromagnetic block (14) is located on a side of the shaft close to the movable rod (122), and one end of the movable rod (122) is connected to a magnetic moving block (15).

5. The welding equipment for automobile production line according to claim 1, characterized in that: The lifting frame (1), the translation frame (2), the auxiliary frame (1) (3), the auxiliary frame (2) (4) and the two multi-axis arms (6) are all electric actuators, and the length of the rocker (133) is less than the horizontal distance between the knocking motor (9) and the extrusion support rod (12).

6. The welding equipment for automobile production line according to claim 1, characterized in that: It also includes a feedback system installed on the lifting frame (1), the feedback system including an image acquisition module, a data analysis module and a feedback execution module, wherein the image acquisition module includes an image collector installed on the bottom surface of the extension bracket, which is used to obtain the situation of residual welding slag in the weld after welding by the welding gun (7) and transmit it to the data analysis module for analysis and judgment of the data of welding slag protruding from the weld surface, and the feedback execution module adjusts the length of the extrusion support rod (12) according to the data of the data analysis module.

7. The welding equipment for automobile production line according to claim 1, characterized in that: The clamping plate (10) is composed of an upper plate and a lower plate, wherein the upper plate and the lower plate are connected via a shaft member (17), the upper plate and the shaft member (17) are fixedly connected, and the lower plate and the shaft member (17) are rotatably connected, and the surfaces of the upper plate and the lower plate are connected via a retractable sliding arc member (16).

8. The welding equipment for automobile production line according to claim 7, characterized in that: The center of the shaft member (17) is located on a side of the central axis of the clamping plate (10) close to the arc sliding member (16), and the diameter of the shaft member (17) is greater than the thickness of the clamping plate (10), and the diameter of the arc sliding member (16) is greater than the diameter of the shaft member (17).

Images