Multi-vehicle-type mixed-line robot welding fixture
By designing a welding fixture for multi-model mixed-line robots, the welding quality problem caused by inconsistent fixing positions of car frames was solved, achieving precise positioning and stable clamping, thus improving welding quality and production efficiency.
Patent Information
- Application Number
- CN202520397936.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-07
AI Technical Summary
In the existing technology, the inconsistent fixed position of the car frame leads to deviation in the position of the welding point, which affects the consistency and stability of the welding quality. Furthermore, when replacing frames of different specifications, it is necessary to readjust the fixtures and robot paths, which increases production costs and time.
Design a multi-vehicle mixed-line robotic welding fixture, including slide rails, slide plates, adjustment mechanisms, telescopic mechanisms, and clamping mechanisms, to ensure precise positioning and stable clamping of the car frame and adapt to the welding needs of different car models.
It enables precise positioning of the car frame, improves the consistency and stability of welding quality, reduces adjustment time when changing car models, and increases production efficiency.
Smart Images
Figure CN223789793U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive processing technology, specifically a multi-model mixed-line robotic welding fixture. Background Technology
[0002] Automotive welding is a crucial part of automobile manufacturing, involving the joining of different metal components to form the car's frame and body. Welding quality directly impacts the vehicle's safety, reliability, and lifespan. By setting appropriate parameters such as welding current, voltage, and speed, the stability of the welding process is ensured. Strict inspection of welding materials ensures they meet design and process requirements. Due to various hazards in welding operations, such as metal spatter, radiation, and arc radiation, welding robots are now widely used to replace manual welding in automotive frame welding to improve operator safety and save labor costs.
[0003] Using robots to weld car frames requires precise positioning of the welding points. However, currently, when clamping and fixing different car frames in the factory, the fixing position of the car frames cannot be guaranteed to be uniform, which will lead to positional deviation of the welding points and affect the consistency and stability of the welding quality. Welding robots rely on precise positioning to complete welding tasks. Positional deviation may lead to problems such as uneven welds and insufficient weld strength. At the same time, each time a different specification of car frame is changed, if the position is not uniform, the welding path of the fixture and robot needs to be readjusted, which increases debugging time and production costs. Utility Model Content
[0004] The purpose of this invention is to provide a multi-model mixed-line robotic welding fixture to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-model mixed-line robotic welding fixture, including a processing table, and further comprising:
[0006] A slide rail is provided on one side of the processing table. The slide rail has a slide plate inside for moving the robot. The top of the slide plate has an adjustment mechanism for rotating the robot and adjusting its direction. Above the adjustment mechanism is a telescopic mechanism for welding. A support frame is fixed at the bottom of the processing table. A wear-resistant pad is provided at the bottom of the support frame.
[0007] A clamping mechanism for fixing the car frame is installed on the top of the processing table. The clamping mechanism includes two first support columns and a second support column fixed to the top of the processing table. Each of the first and second support columns has a column at its top. A cylinder is fixed to the outside of the column. A pressure arm is fixed to the piston rod of the cylinder. A limit plate is fixed to the bottom of the pressure arm. A bracket is fixed to one side of the top of the first support column. A sensor is installed inside the bracket. A first support frame is installed on the top of the first support column. A second support frame is installed on the top of the second support column. A pin seat is fixed to the inner wall of the first support frame. A positioning pin is fixed to the top of the pin seat.
[0008] Preferably, the adjustment mechanism includes a base fixed to the top of the slide plate, a motor fixed to the inner wall of the base, a first rotating shaft fixed to the output end of the motor, a drive gear fixed to the outer side of the first rotating shaft, a driven gear meshing with the outer side of the drive gear, a second rotating shaft fixed to the axis of the driven gear, a rotating block fixed to the top of the second rotating shaft, and a base plate fixed to the top of the rotating block.
[0009] Preferably, the first rotating shaft and the rotating block are both rotatably connected to the inner wall of the base, and the bottom end of the second rotating shaft is rotatably connected to a bearing, which is fixed to the inner wall of the base.
[0010] Preferably, a limiting groove is formed on the top of the base, and a limiting ring is rotatably connected to the inner wall of the limiting groove, and the limiting ring is fixed to the bottom of the base plate.
[0011] Preferably, the telescopic mechanism includes a first rotating seat fixed to the top of the base plate, a first rotating rod rotatably connected to the inner wall of the first rotating seat, and a second rotating seat provided at the top end of the first rotating rod.
[0012] Preferably, a second rotating rod is rotatably connected to the inner wall of the second rotating seat, and a third rotating seat is provided at one end of the second rotating rod, and a third rotating rod is rotatably connected to the inner wall of the third rotating seat.
[0013] Preferably, one end of the third rotating rod is provided with a mounting base, and one side of the mounting base is provided with a welding head.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] This invention, by setting up a clamping mechanism, can accurately position various car frame models, ensuring that the frame is in the same fixed point position each time. This ensures that the welding robot can weld the car frame with accurate welding point positioning, improving the consistency and stability of welding quality. At the same time, the accurate clamping and fixing of the car frame can save the time of readjusting the welding path of the fixture and robot when changing car frames of different specifications, thereby improving the work efficiency of car processing. Attached Figure Description
[0016] Figure 1 A schematic diagram of a preferred embodiment of the multi-model mixed-line robot welding fixture provided by this utility model;
[0017] Figure 2 A schematic diagram of the clamping mechanism provided by this utility model;
[0018] Figure 3 This is a schematic diagram of the structure at the top of the second support column provided by this utility model;
[0019] Figure 4 A schematic diagram of the adjustment mechanism provided by this utility model;
[0020] Figure 5 A schematic diagram of the telescopic mechanism provided by this utility model.
[0021] In the diagram: 1. Processing table; 2. Slide rail; 3. Slide plate; 4. Adjustment mechanism; 41. Base; 42. Motor; 43. First rotating shaft; 44. Driving gear; 45. Driven gear; 46. Second rotating shaft; 47. Rotating block; 48. Base plate; 49. Bearing; 410. Limiting groove; 411. Limiting ring; 5. Telescopic mechanism; 51. First rotating seat; 52. First rotating rod; 53. Second rotating seat; 54. Second rotating rod; 55. Third rotating seat; 56. Third rotating rod; 57. Mounting seat; 58. Welding head; 6. Support frame; 7. Wear-resistant pad; 8. Clamping mechanism; 81. First support column; 82. Second support column; 83. Column; 84. Cylinder; 85. Pressure arm; 86. Limiting plate; 87. Bracket; 88. Sensor; 89. First support frame; 810. Second support frame; 811. Pin seat; 812. Positioning pin. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1-5 As shown, a multi-vehicle mixed-line robot welding fixture includes a processing table 1, which clamps and fixes the car frame for welding. It also includes a slide rail 2 on one side of the processing table 1, which facilitates the movement of a sliding plate 3 within it. The slide rail 2 houses the sliding plate 3, which is used to move the robot. The welding robot is mounted on the sliding plate 3 and its movement is facilitated by the sliding plate 3. An adjustment mechanism 4 is located on the top of the sliding plate 3 to adjust the robot's rotation and direction, allowing for adjustment of the robot's welding angle. Above the adjustment mechanism 4 is a telescopic mechanism 5 for welding operations, which allows for adjustment of the robot's direction. Welding angle; A support frame 6 is fixed to the bottom of the processing table 1, which supports the installation of the processing table 1; A wear-resistant pad 7 is provided at the bottom of the support frame 6, which improves the stability of the support frame 6; A clamping mechanism 8 is provided on the top of the processing table 1 for fixing the car frame, which can clamp and fix car frames of multiple models, improving the stability during welding; The clamping mechanism 8 includes two first support columns 81 and two second support columns 82 fixed to the top of the processing table 1, which can support the four corners of the car frame; The first support columns 81 and the two second support columns 82 are equipped with a built-in hydraulic lifting system, which can raise the height of the car frame. The angle is adjustable; each of the first support column 81 and the second support column 82 is equipped with a column 83 at its top, through which a cylinder 84 can be installed; the cylinder 84 is fixed to the outside of the column 83, through which the cylinder 84 can drive the pressure arm 85 to move; the piston rod of the cylinder 84 is fixed to the pressure arm 85, through which the pressure arm 85 can drive the limiting plate 86 to move; the bottom of the pressure arm 85 is fixed to the limiting plate 86, through which the pressure arm 85 and the limiting plate 86 can press the top of the car frame to fix it, and a gasket is provided between the pressure arm 85 and the limiting plate 86; a bracket 87 is fixed to one side of the top of the first support column 81, through which a sensor 88 can be installed; the sensor 88 is installed inside the bracket 87. 8. By setting sensor 88, after sensing that the frame is fixed, the signal is transmitted to the robot to carry out the next welding work; the top of the first support column 81 is provided with a first support frame 89, and the top of the second support column 82 is provided with a second support frame 810. The first support frame 89 and the second support frame 810 can support the four corners of the bottom of the car frame; the inner wall of the first support frame 89 is fixed with a pin seat 811, and the positioning pin 812 can be installed by setting the pin seat 811; the top of the pin seat 811 is fixed with a positioning pin 812. The positioning pin 812 can be placed in a suitable position on the first support frame 89 and the second support frame 810 before the car frame is clamped and fixed, and is positioned by the positioning pin 812.
[0024] Please see Figure 1and Figure 4 As shown, the adjustment mechanism 4 includes a base 41 fixed to the top of the slide plate 3, through which a motor 42 can be installed; the motor 42 is fixed to the inner wall of the base 41, through which the motor 42 can drive the first rotating shaft 43 to rotate; the output end of the motor 42 is fixed to the first rotating shaft 43, through which the first rotating shaft 43 can drive the driving gear 44 to rotate; the outer side of the first rotating shaft 43 is fixed to the driving gear 44, through which the driving gear 44 can drive the driven gear 45 to rotate; the outer side of the driving gear 44 is meshed with the driven gear 45, through which the driven gear 45 can drive the second rotating shaft 46 to rotate; the shaft center of the driven gear 45 is fixed to the second rotating shaft 46, through which the second rotating shaft 46 can drive the rotating block 47 to rotate; the first A rotating block 47 is fixed to the top of the second rotating shaft 46, which can drive the base plate 48 to rotate. The base plate 48 is fixed to the top of the rotating block 47, which can drive the telescopic mechanism 5 to rotate. The first rotating shaft 43 and the rotating block 47 are rotatably connected to the inner wall of the base 41. The bottom end of the second rotating shaft 46 is rotatably connected to a bearing 49, which can improve the stability of the rotation of the second rotating shaft 46. The bearing 49 is fixed to the inner wall of the base 41. A limiting groove 410 is opened on the top of the base 41. A limiting ring 411 is rotatably connected to the inner wall of the limiting groove 410. The limiting ring 411 is fixed to the bottom of the base plate 48. The limiting groove 410 and the limiting ring 411 can improve the stability of the rotation of the base plate 48.
[0025] Please see Figure 5 As shown, the telescopic mechanism 5 includes a first rotating seat 51 fixed to the top of the base plate 48, which supports the rotation of the first rotating rod 52; the inner wall of the first rotating seat 51 is rotatably connected to the first rotating rod 52, which connects to a second rotating seat 53; the top end of the first rotating rod 52 is provided with a second rotating seat 53, which supports the rotation of the second rotating rod 54; the inner wall of the second rotating seat 53 is rotatably connected to the second rotating rod 54, which supports the rotation of the second rotating rod 54. A third rotating seat 55 can be connected; a third rotating seat 55 is provided at one end of the second rotating rod 54, and the third rotating rod 56 can be rotated by the third rotating seat 55; the third rotating rod 56 is rotatably connected to the inner wall of the third rotating seat 55, and a mounting seat 57 can be connected by the third rotating rod 56; a mounting seat 57 is provided at one end of the third rotating rod 56, and the welding head 58 can be installed and removed by the mounting seat 57; a welding head 58 is provided on one side of the mounting seat 57, and the welding head 58 can be used for automotive frame welding.
[0026] Working principle: The worker places the car frame in a suitable position on the first support frame 89 and the second support frame 810. After positioning by the positioning pin 812, the cylinder 84 is opened to drive the pressure arm 85 to move. The pressure arm 85 drives the limiting plate 86 to move. The pressure arm 85 and the limiting plate 86 press the top of the car frame and cooperate with the first support frame 89 and the second support frame 810 to clamp and fix the car frame. Next, the worker starts the robot to perform car frame welding. When the robot is working, the welding angle can be adjusted by the first rotating rod 52, the second rotating rod 54 and the third rotating rod 56. When it is necessary to adjust the welding direction, the motor 42 can be turned to drive the first rotating shaft 43 to rotate. The first rotating shaft 43 drives the driving gear 44 to rotate. The driving gear 44 drives the driven gear 45 to rotate. The driven gear 45 drives the second rotating shaft 46 to rotate. The second rotating shaft 46 drives the rotating block 47 to rotate. The rotating block 47 drives the base plate 48 to rotate. The base plate 48 drives the first rotating seat 51 to rotate. During welding, the robot moves within the slide rail 2 via the slide plate 3.
[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A multi-vehicle type mixed line robot welding fixture comprising a machining table (1), characterized in that, Also include: The slide rail (2) is arranged on one side of the machining table (1), the inside of the slide rail (2) is provided with a slide plate (3) for driving the robot to move, the top of the slide plate (3) is provided with an adjusting mechanism (4) for driving the robot to rotate and adjust the direction, the top of the adjusting mechanism (4) is provided with a telescopic mechanism (5) for welding work, the bottom of the machining table (1) is fixed with a support frame (6), the bottom of the support frame (6) is provided with a wear-resistant pad (7); The clamping mechanism (8) is arranged on the top of the machining table (1) and used for fixing the automobile frame, the clamping mechanism (8) comprises two first support columns (81) and a second support column (82) fixed on the top of the machining table (1), the top of each of the first support column (81) and the second support column (82) is provided with a vertical column (83), the outer side of the vertical column (83) is fixed with an air cylinder (84), the piston rod of the air cylinder (84) is fixed with a pressing arm (85), the bottom of the pressing arm (85) is fixed with a limiting plate (86), one side of the top end of the first support column (81) is fixed with a support (87), the inside of the support (87) is provided with a sensor (88), the top of the first support column (81) is provided with a first support frame (89), the top of the second support column (82) is provided with a second support frame (810), the inner wall of the first support frame (89) is fixed with a pin seat (811), the top of the pin seat (811) is fixed with a positioning pin (812).
2. The multi-vehicle-type mixed-line robot welding fixture according to claim 1, characterized in that: The adjusting mechanism (4) comprises a base (41) fixed on the top of the slide plate (3), the inner wall of the base (41) is fixed with a motor (42), the output end of the motor (42) is fixed with a first rotating shaft (43), the outer side of the first rotating shaft (43) is fixed with a driving gear (44), the outer side of the driving gear (44) is engaged with a driven gear (45), the shaft center of the driven gear (45) is fixed with a second rotating shaft (46), the top end of the second rotating shaft (46) is fixed with a rotating block (47), the top of the rotating block (47) is fixed with a bottom plate (48).
3. The multi-vehicle-type mixed-line robot welding fixture according to claim 2, characterized in that: The first rotating shaft (43) and the rotating block (47) are both rotationally connected to the inner wall of the base (41), the bottom end of the second rotating shaft (46) is rotationally connected with a bearing (49), and the bearing (49) is fixed to the inner wall of the base (41).
4. The multi-vehicle-type mixed-line robot welding jig according to claim 2, characterized in that: The top of the base (41) is provided with a limiting groove (410), and the inner wall of the limiting groove (410) is rotationally connected with a limiting ring (411), and the limiting ring (411) is fixed to the bottom of the bottom plate (48).
5. The multi-vehicle-type mixed-line robot welding jig according to claim 4, characterized in that: The telescopic mechanism (5) comprises a first rotating seat (51) fixed on the top of the bottom plate (48), the inner wall of the first rotating seat (51) is rotationally connected with a first rotating rod (52), and the top end of the first rotating rod (52) is provided with a second rotating seat (53).
6. The multi-vehicle-type mixed-line robot welding jig according to claim 5, characterized in that: The inner wall of the second rotating seat (53) is rotationally connected with a second rotating rod (54), one end of the second rotating rod (54) is provided with a third rotating seat (55), and the inner wall of the third rotating seat (55) is rotationally connected with a third rotating rod (56).
7. The multi-vehicle-type mixed-line robot welding jig according to claim 6, characterized in that: One end of the third rotating rod (56) is provided with a mounting seat (57), and one side of the mounting seat (57) is provided with a welding head (58).