Automotive interior floor stud welding apparatus

Abstract

The utility model discloses a kind of automobile interior floor stud welding equipment, including with industrial robot connection and for grabbing automobile interior floor's lifting appliance, for clamping automobile interior floor's welding fixture and for welding stud on automobile interior floor welding execution device, welding execution device is located at the outside of welding fixture, welding execution device includes fixed frame, rotatable setting on the rotating arm of fixed frame, stud welding torch being set on rotating arm and with rotating arm connection and for driving rotating arm to rotate rotating actuator.The automobile interior floor stud welding equipment of the utility model, the welding execution device of setting can realize the automatic welding of stud on automobile interior floor, the lifting appliance of simultaneously setting cooperation can be used to grab automobile interior floor and move, can be used to realize the high efficiency of automobile interior floor in welding assembly process Efficient feeding and discharging, improve automobile interior floor stud welding work efficiency and product quality.

Description

Technical Field

[0001] This utility model belongs to the technical field of automotive parts production equipment. Specifically, this utility model relates to a welding equipment for automotive interior floor studs. Background Technology

[0002] The interior floor of a car is an important part of the car body, and studs need to be welded to the interior floor.

[0003] Currently, the welding process for studs on automotive interior flooring is generally done manually in the industry. This manual welding method requires operators to hold a welding torch and aim it at the pre-set welding position on the interior flooring. Simultaneously, manual assistance is needed to move the interior flooring to the welding station, and then move it to the next process after welding. This method has drawbacks: manual operation is highly subjective, making it difficult to guarantee the repeatability and accuracy of the stud welding position, easily leading to quality problems such as welding misalignment and stud tilting, resulting in difficulties in subsequent assembly or insufficient connection reliability; manual welding is labor-intensive and inefficient, making it difficult to adapt to the large-scale, high-speed production demands of the automotive manufacturing industry, and the continuously rising labor costs further compress the profit margins of manufacturers; in addition, during the manual handling of the interior flooring, collisions and friction can easily cause scratches or structural deformation of the workpiece surface, affecting the product qualification rate.

[0004] Chinese Patent Application No. 201821982378.6 discloses a welding device for rear floor studs of a vehicle frame, including a base, bracket I, a gear, a rotating shaft, a welding gun device, bracket II, a connecting plate, a guide rail, a rack, a cylinder, and a connecting rod. Bracket I is U-shaped and mounted on the base. The rotating shaft is connected to the top plate of bracket I via a bearing, passes through the top plate, and its lower part is connected to the gear. Its upper part is connected to the welding gun device, which is equipped with a welding gun. Bracket II is mounted on the base, and the connecting plate is mounted on bracket II. The guide rail is mounted on the connecting plate near bracket I and is horizontally oriented. The rack is connected to the guide rail and can perform feed motion along the length of the guide rail; the rack meshes with the gear. The cylinder is mounted on the base, located between bracket I and bracket II, and its piston rod is connected to the rack via an L-shaped connecting rod. The technical solution disclosed in this patent document also fails to solve the aforementioned technical problem.

[0005] This invention provides a welding equipment for automotive interior floor studs, and specifically addresses how to improve the efficiency and product quality of welding studs on automotive interior floor panels. Utility Model Content

[0006] This invention provides a welding equipment for automotive interior floor studs, with the aim of improving the efficiency and product quality of welding automotive interior floor studs.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a welding equipment for automotive interior floor studs, comprising a lifting device connected to an industrial robot for gripping automotive interior floor, a welding fixture for clamping the automotive interior floor, and a welding execution device for welding studs on the automotive interior floor. The welding execution device is located outside the welding fixture and includes a fixed frame, a rotating arm rotatably mounted on the fixed frame, a stud welding torch mounted on the rotating arm, and a rotary actuator connected to the rotating arm for driving the rotating arm to rotate.

[0008] The rotary actuator is a cylinder.

[0009] The lifting device includes a lifting frame and external clamping devices and internal clamping devices disposed on the lifting frame. Multiple external clamping devices are provided, and the internal clamping devices are configured to clamp the automotive interior floor at the circular holes in the interior floor.

[0010] The lifting frame includes a first crossbeam, a second crossbeam, a third crossbeam, a first longitudinal beam connected to the first and second crossbeams, a second longitudinal beam connected to the second and third crossbeams, and a third longitudinal beam connected to the third crossbeam. The first crossbeam, the second crossbeam, and the third longitudinal beam are equipped with external clamping devices, and the first longitudinal beam is equipped with an internal clamping device. The first and third crossbeams are parallel to the second crossbeam and are located on the same side of the second crossbeam.

[0011] The lifting frame also includes a robot connector that is connected to the second longitudinal beam and is used for connection with an industrial robot.

[0012] One first longitudinal beam is provided, and two second longitudinal beams are provided.

[0013] The external clamping device includes a first clamping bracket disposed on the lifting frame, a first clamping arm, a first lower clamping block disposed on the first clamping arm, a first upper clamping block disposed on the first clamping bracket and cooperating with the first lower clamping block to clamp the interior floor of the vehicle, and a first driver disposed on the first clamping bracket and used to provide a driving force to the first clamping arm to rotate it.

[0014] The internal clamping device includes a second clamping bracket, a first connecting rod and a second connecting rod rotatably mounted on the second clamping bracket, a second lower clamping block mounted on the second connecting rod, a second upper clamping block mounted on the second clamping bracket and cooperating with the second lower clamping block to clamp the automotive interior floor, a linkage member connected to the first connecting rod, and a second driver connected to the linkage member. The first connecting rod and the second connecting rod are rotatably connected. The second driver is mounted on the lifting frame. There are two first connecting rods and two second upper and lower clamping blocks.

[0015] This utility model relates to a welding equipment for automotive interior floor studs. The welding execution device enables automatic welding of studs on automotive interior flooring. Simultaneously, a matching lifting device is provided to grasp and move the automotive interior flooring. This allows for efficient loading and unloading of automotive interior flooring during the welding and assembly process, improving the efficiency and product quality of stud welding on automotive interior flooring. Attached Figure Description

[0016] This manual includes the following figures, which illustrate the following: Figure 1 This is a structural schematic diagram of the automotive interior floor stud welding equipment of this utility model; Figure 2 This is a schematic diagram of the welding actuator; Figure 3 This is a structural diagram of the lifting device; Figure 4 This is a schematic diagram of the external clamping device; Figure 5 This is a schematic diagram of the internal hole clamping device; Figure 6 This is a schematic diagram of the internal hole clamping device in the clamping state; Figure 7 This is a schematic diagram of the internal hole clamping device in the released state; The diagram is marked as follows: 1. Automotive interior floor; 2. Fixture; 3. Rotary arm; 4. Stud welding torch; 5. Rotary actuator; 6. First crossbeam; 7. Second crossbeam; 8. Third crossbeam; 9. First longitudinal beam; 10. Second longitudinal beam; 11. Third longitudinal beam; 12. Robot connector; 13. First clamping bracket; 14. First clamping arm; 15. First lower clamping block; 16. First upper clamping block; 17. First driver; 18. Second clamping bracket; 19. First connecting rod; 20. Second connecting rod; 21. Second lower clamping block; 22. Second upper clamping block; 23. Linkage component; 24. Second driver; 25. External clamping device; 26. Internal clamping device; 27. Welding fixture. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of this utility model, and to facilitate its implementation.

[0018] like Figures 1 to 7As shown, this utility model provides a welding equipment for automotive interior floor studs, including a lifting device connected to an industrial robot for gripping automotive interior floor, a welding fixture 27 for clamping automotive interior floor, and a welding execution device for welding studs on automotive interior floor. The welding execution device is located outside the welding fixture 27. The welding execution device includes a fixed frame 2, a rotating arm 3 rotatably mounted on the fixed frame 2, a stud welding gun 4 mounted on the rotating arm 3, and a rotary actuator 5 connected to the rotating arm 3 for driving the rotating arm 3 to rotate.

[0019] Specifically, such as Figure 1 and Figure 2 As shown, the fixed frame 2 is vertically mounted on the outside of the welding fixture 27, and the rotary actuator 5 is rotatably mounted on the fixed frame 2. One end of the rotating arm 3 is rotatably connected to the rotary actuator 5, and the stud welding torch 4 is fixedly mounted on the other end of the rotating arm 3. The rotary actuator 5 is a cylinder. When the rotary actuator 5 is working, it can drive the rotating arm 3 to rotate up and down, and the rotating arm 3 drives the stud welding torch 4 to rotate synchronously. After the rotating arm 3 drives the stud welding torch 4 to rotate downward to the specified height, the stud welding torch 4 welds the bolt to the car interior floor below. This welding actuator with this structure can realize the automatic welding of studs to the car interior floor, which helps to improve work efficiency and welding quality.

[0020] like Figure 1 and Figure 3 As shown, the lifting device includes a lifting frame and external clamping devices 25 and internal clamping devices 26 mounted on the lifting frame. Multiple external clamping devices 25 are provided, and the internal clamping devices 26 are configured to clamp the automotive interior floor at circular holes. The lifting frame includes a first crossbeam 6, a second crossbeam 7, a third crossbeam 8, a first longitudinal beam 9 connected to the first crossbeam 6 and the second crossbeam 7, a second longitudinal beam 10 connected to the second crossbeam 7 and the third crossbeam 8, and a third longitudinal beam 11 connected to the third crossbeam 8. External clamping devices 25 are mounted on the first crossbeam 6, the second crossbeam 7, and the third longitudinal beam 11, and internal clamping devices 26 are mounted on the first longitudinal beam 9. The first crossbeam 6 and the third crossbeam 8 are parallel to the second crossbeam 7 and are located on the same side of the second crossbeam 7.

[0021] like Figure 1 and Figure 3As shown, the lifting frame also includes a robot connector 12 connected to the second longitudinal beam 10 and used for connecting to an industrial robot. One first longitudinal beam 9 and two second longitudinal beams 10 are provided. The robot connector 12 is fixedly connected to both second longitudinal beams 10. The first longitudinal beam 9 is parallel to the second longitudinal beam 10 and the third longitudinal beam 11. The first longitudinal beam 9 and one second longitudinal beam 10 are located between the first crossbeam 6 and the second crossbeam 7, and are vertically fixedly connected to the first crossbeam 6 and the second crossbeam 7. Another second longitudinal beam 10 is located between the second crossbeam 7 and the third crossbeam 8, and is vertically fixedly connected to the second crossbeam 7 and the third crossbeam 8. The third longitudinal beam 11 is parallel to the second longitudinal beam 10, and the third longitudinal beam 11 and the second longitudinal beam 10 are located on opposite sides of the third crossbeam 8.

[0022] like Figure 3 and Figure 4 As shown, all external clamping devices 25 have essentially the same structure. All external clamping devices 25 cooperate to clamp the automotive interior floor at multiple locations along its outer edge. Each external clamping device 25 includes a first clamping bracket 13 mounted on a lifting frame, a first clamping arm 14, a first lower clamping block 15 mounted on the first clamping arm 14, a first upper clamping block 16 mounted on the first clamping bracket 13 and cooperating with the first lower clamping block 15 to clamp the automotive interior floor, and a first driver 17 mounted on the first clamping bracket 13 to provide a driving force for rotating the first clamping arm 14. The first upper clamping block 16 and the first lower clamping block 15 cooperate to clamp the automotive interior floor at one location on the automotive interior floor. In the clamped state, the first upper clamping block 16 is positioned above the automotive interior floor and in contact with its top surface, while the first lower clamping block 15 is positioned below the automotive interior floor and in contact with its bottom surface. One end of the first clamping arm 14 is rotatably connected to the first driver 17, and the first lower clamping block 15 is fixedly disposed at the other end of the first clamping arm 14. The first driver 17 is a cylinder. When the first driver 17 is working, it can drive the first clamping arm 14 to flip up and down. The first clamping arm 14 drives the first lower clamping block 15 to rotate synchronously, thereby realizing the clamping and release of the car interior floor.

[0023] like Figure 3 and Figure 4 As shown, an external clamping device 25 is provided at one end of the first crossbeam 6, and the other end of the first crossbeam 6 is fixedly connected to one end of the second longitudinal beam 10. Two external clamping devices 25 are provided at both ends of the second crossbeam 7, and an external clamping device 25 is provided at one end of the third longitudinal beam 11.

[0024] like Figure 3 , Figures 5 to 7As shown, the internal clamping device 26 is mounted on a second longitudinal beam 10 adjacent to the first longitudinal beam 9. The internal clamping device 26 includes a second clamping bracket 18, a first connecting rod 19 and a second connecting rod 20 rotatably mounted on the second clamping bracket 18, a second lower clamping block 21 mounted on the second connecting rod 20, a second upper clamping block 22 mounted on the second clamping bracket 18 and cooperating with the second lower clamping block 21 to clamp the automotive interior floor, a linkage member 23 connected to the first connecting rod 19, and a second driver 24 connected to the linkage member 23. The first connecting rod 19 and the second connecting rod 20 are rotatably connected. The second driver 24 is mounted on a lifting frame. There are two first connecting rods 19 and two second upper clamping blocks 22 and two second lower clamping blocks 21. The second driver 24 is a cylinder; the cylinder body of the second driver 24 is fixedly connected to the second longitudinal beam 10, and the piston rod of the second driver 24 is fixedly connected to the linkage rod. Both ends of the linkage rod are rotatably connected to one end of each of the two first connecting rods 19, and the other ends of each of the two first connecting rods 19 are rotatably connected to one end of each of the two second connecting rods 20. A second lower clamping block 21 is mounted on the other end of each of the two second connecting rods 20. The second connecting rods 20 are rotatably connected to the second clamping bracket 18 at a position between their two ends. The second clamping bracket 18 is fixedly mounted on the cylinder of the second actuator 24. Two second upper clamping blocks 22 are mounted on the second clamping bracket 18, positioned on the same straight line parallel to the length direction of the second longitudinal beam 10. The two second upper clamping blocks 22 cooperate with the two second lower clamping blocks 21, clamping the automotive interior floor at the inner edge of the circular hole. The axis of the circular hole is located between the two second upper clamping blocks 22. When the second actuator 24 extends or retracts, it drives the two first connecting rods 19 to rotate synchronously via the linkage rod. The two first connecting rods 19, in turn, drive the two second lower clamping blocks 21 to rotate synchronously via the two second connecting rods 20, achieving contact and separation from the automotive interior floor. In the clamping state, the second upper clamping block 22 is positioned above the automotive interior floor and in contact with its top surface, while the second lower clamping block 21 is positioned below the automotive interior floor and in contact with its bottom surface. This clamping method distributes the clamping force evenly along the edge of the circular hole. The cylinder and connecting rod work together to achieve uniform force transmission, preventing deformation of the thin-walled floor. Furthermore, the dual connecting rod linkage ensures synchronized movement of the two clamping blocks, resulting in balanced force distribution.

[0025] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A welding equipment for automotive interior floor studs, comprising welding fixtures for clamping automotive interior flooring, characterized in that: It also includes a lifting device connected to an industrial robot for gripping automotive interior flooring and a welding actuator for welding studs onto the automotive interior flooring. The welding actuator is located outside the welding fixture and includes a fixed frame, a rotating arm rotatably mounted on the fixed frame, a stud welding torch mounted on the rotating arm, and a rotary actuator connected to the rotating arm for driving the rotating arm to rotate.

2. The automotive interior floor stud welding equipment according to claim 1, characterized in that: The rotary actuator is a cylinder.

3. The automotive interior floor stud welding equipment according to claim 1, characterized in that: The lifting device includes a lifting frame and external clamping devices and internal clamping devices disposed on the lifting frame. Multiple external clamping devices are provided, and the internal clamping devices are configured to clamp the automotive interior floor at the circular holes in the interior floor.

4. The automotive interior floor stud welding equipment according to claim 3, characterized in that: The lifting frame includes a first crossbeam, a second crossbeam, a third crossbeam, a first longitudinal beam connected to the first and second crossbeams, a second longitudinal beam connected to the second and third crossbeams, and a third longitudinal beam connected to the third crossbeam. The first crossbeam, the second crossbeam, and the third longitudinal beam are equipped with external clamping devices, and the first longitudinal beam is equipped with an internal clamping device. The first and third crossbeams are parallel to the second crossbeam and are located on the same side of the second crossbeam.

5. The automotive interior floor stud welding equipment according to claim 4, characterized in that: The lifting frame also includes a robot connector that is connected to the second longitudinal beam and is used for connection with an industrial robot.

6. The automotive interior floor stud welding equipment according to claim 4, characterized in that: One first longitudinal beam is provided, and two second longitudinal beams are provided.

7. The automotive interior floor stud welding equipment according to any one of claims 4 to 6, characterized in that: The external clamping device includes a first clamping bracket disposed on the lifting frame, a first clamping arm, a first lower clamping block disposed on the first clamping arm, a first upper clamping block disposed on the first clamping bracket and cooperating with the first lower clamping block to clamp the interior floor of the vehicle, and a first driver disposed on the first clamping bracket and used to provide a driving force to the first clamping arm to rotate it.

8. The automotive interior floor stud welding equipment according to any one of claims 4 to 6, characterized in that: The internal clamping device includes a second clamping bracket, a first connecting rod and a second connecting rod rotatably mounted on the second clamping bracket, a second lower clamping block mounted on the second connecting rod, a second upper clamping block mounted on the second clamping bracket and cooperating with the second lower clamping block to clamp the automotive interior floor, a linkage member connected to the first connecting rod, and a second driver connected to the linkage member. The first connecting rod and the second connecting rod are rotatably connected. The second driver is mounted on the lifting frame. There are two first connecting rods and two second upper and lower clamping blocks.

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