Spraying jig
By improving the design of the spraying fixture, the car door is securely clamped by the cooperation of clamping parts and elastic rods, and the fuel tank cap is fixed by multiple locking parts, which solves the problem of tilting or detachment of existing fixtures and improves the spraying quality and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-04-03
AI Technical Summary
Existing spraying fixtures are prone to tilting or detaching when fixing the oil tank cap, resulting in low spraying efficiency and quality.
A spraying fixture comprising a base, a clamping component, and a fixing component is designed. The clamping component consists of a clamping element and an elastic rod, and the fixing component consists of a U-shaped support rod and a locking element. Through the cooperation of the clamping element and the elastic rod, the car door is firmly clamped, and the fuel tank cap is fixed by multiple locking elements, allowing for flexible adjustment of angle and position.
It improves the quality and efficiency of spraying, prevents the fixture from loosening or detaching when the robot opens the door, reduces rework, adapts to different door sizes and shapes, and ensures spraying accuracy and stability.
Smart Images
Figure CN224072338U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spraying fixture technology, and in particular to a spraying fixture. Background Technology
[0002] Automotive painting is a crucial process in automobile manufacturing. Its core objective is to create a multi-layered coating on the vehicle's surface that combines aesthetics, corrosion resistance, and durability. This process not only represents the final presentation of the vehicle's exterior design but also serves as a key technological safeguard for protecting the metal body from environmental corrosion. Even the vehicle's fuel tank cap requires painting.
[0003] Currently, robots are being widely adopted in automobile manufacturing painting workshops for painting operations. Before the car body is painted, the fuel tank cap is fixed to the car body using a fixture, enabling the robot to perform automated painting processes on the inner and outer panels of the fuel tank cap and the car body.
[0004] However, the existing fixture is directly inserted into the process hole of the car door, and then the fuel tank cap is fixed on the fixture for spraying. When the robot automatically opens the car door to spray the inside of the fuel tank cap, the fixture is prone to tilting or falling off the car door, requiring manual adjustment by the operator. This results in low efficiency and low quality of fuel tank cap spraying.
[0005] Therefore, it is necessary to provide a new spraying fixture to solve the above-mentioned technical problems. Utility Model Content
[0006] The main purpose of this utility model is to propose a spraying fixture, which aims to improve the technical problems of low spraying efficiency and spraying quality of fuel tank caps in the prior art.
[0007] To achieve the above objectives, this utility model provides a spraying fixture, comprising:
[0008] Base;
[0009] A clamping component, comprising a clamping member and an elastic rod, both of which are mounted on the base and spaced apart along the width direction of the base. The end of the elastic rod away from the base can move toward or away from the clamping member to clamp or release the car door.
[0010] The fixing component includes a U-shaped support rod and a plurality of first locking members. The U-shaped support rod is rotatably mounted on the base about the length of the base. The plurality of first locking members are disposed on the U-shaped support rod and are respectively used to extend into a plurality of fixing holes of the fuel tank cap to fix the fuel tank cap.
[0011] In one embodiment, there are multiple elastic rods, which are spaced apart along the length of the base.
[0012] In one embodiment, the clamping component further includes a limiting member, one end of which is mounted on the base, and the other end of which is used to extend into the limiting hole of the door.
[0013] In one embodiment, the fixing component further includes a second locking member. A rotating hole is formed on the U-shaped support rod, and the second locking member is rotatably installed in the rotating hole. The second locking member is used to rotate to abut against the fuel tank cap.
[0014] In one embodiment, the U-shaped support rod is further provided with a mounting hole, the bottom of which is provided with an elastic element. The other end of the elastic element is connected to a ball that can slide along the axial direction of the mounting hole. The ball extends partially out of the mounting hole in the natural state of the elastic element. The second locking element is used to rotate to the ball and press the ball down to retract it into the mounting hole. The second locking element continues to rotate until one side of the second locking element abuts against the oil tank cap. The elastic element drives the ball to extend out of the mounting hole, and the other side of the second locking element abuts against the ball.
[0015] In one embodiment, the second locking member includes a first connecting rod and a second connecting rod connected to each other. The first connecting rod is rotatably mounted in the rotating hole. The first connecting rod is used to rotate to the ball and press the ball down to retract it into the mounting hole. The first connecting rod continues to rotate until the second connecting rod abuts against the fuel tank cap. At this time, the top end of the second connecting rod abuts against the first locking member. The elastic member drives the ball to extend out of the mounting hole, and the first connecting rod abuts against the ball.
[0016] In one embodiment, the first connecting rod is cylindrical.
[0017] In one embodiment, the elastic rod is an irregularly segmented bent shape.
[0018] In one embodiment, the limiting member includes a first horizontal bar, a second horizontal bar, a vertical bar, and a reinforcing bar. The first horizontal bar is connected to the base, one end of the vertical bar is connected to the first horizontal bar, and the other end of the vertical bar is connected to the second horizontal bar. The second horizontal bar is used to extend into the limiting hole of the door, and both ends of the reinforcing bar are connected to the first horizontal bar and the vertical bar, respectively.
[0019] In one embodiment, the outer surfaces of the base, the fixing component, and the clamping component are all covered with a stainless steel layer.
[0020] In the above solution, the spraying fixture includes a base, a clamping component, and a fixing component. The clamping component includes a clamping member and an elastic rod. Both the clamping member and the elastic rod are installed on the base and are spaced apart along the width direction of the base. The end of the elastic rod away from the base can move toward or away from the clamping member to clamp or release the car door. The fixing component includes a U-shaped support rod and a plurality of first locking members. The U-shaped support rod is rotatably installed on the base about the length direction of the base. The plurality of first locking members are all disposed on the U-shaped support rod. The plurality of first locking members are respectively used to extend into a plurality of fixing holes of the fuel tank cover to fix the fuel tank cover. Specifically, rotate the fixing component so that the included angle between the clamping component and the fixing component roughly meets the spraying requirements. Then, align the multiple fixing holes on the fuel tank cap with the multiple first locking parts on the corresponding fixing components. Insert the multiple first locking parts into the multiple fixing holes, thus fixing the fuel tank cap to the fixing component. Then, the operator moves the elastic rod so that the end of the elastic rod away from the base moves away from the clamping component. Then, place the clamping component and the elastic rod on both sides of the car door, and move the elastic rod as close to the car door as possible. Thus, the clamping component and the elastic rod are close to both sides of the car door, and the fixture is clamped to the car door. Then, according to the spraying... The robot adjusts the angle between the clamping and fixing components to ensure the position and angle of the fuel tank cap meet the painting requirements. During painting, after the robot finishes painting one side of the fuel tank cap, it opens the car door and paints the other side of the fuel tank cap, thus completing the painting of the fuel tank cap. Compared to the existing technology where the fixture is directly inserted into the process hole of the car door, this invention uses the combination of clamping components and elastic rods to more firmly clamp the car door. This prevents the clamping components from loosening when the robot opens the car door, preventing the fixture from tilting or detaching from the car door, improving the painting quality, and eliminating the need for frequent rework, thereby increasing painting efficiency. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0022] Figure 1 A schematic diagram of the structure of an embodiment of the spraying fixture provided by this utility model;
[0023] Figure 2 A schematic diagram of the folded structure of the spraying fixture provided by this utility model;
[0024] Figure 3 A front view of the spraying fixture provided by this utility model;
[0025] Figure 4 This is a side view of the spraying fixture provided by this utility model.
[0026] Explanation of icon numbers:
[0027] 100. Spraying jig; 1. Base; 2. Clamping component; 21. Clamping element; 22. Elastic rod; 23. Limiting element; 231. First horizontal bar; 232. Second horizontal bar; 233. Vertical bar; 234. Reinforcing rod; 3. Fixing component; 31. U-shaped support rod; 311. Mounting hole; 32. First locking element; 33. Second locking element; 331. First connecting rod; 332. Second connecting rod; 4. Ball bearing.
[0028] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0029] 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 scope of protection of the present utility model.
[0030] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0031] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0032] To achieve the above objectives, please refer to Figures 1 to 4This utility model proposes a spraying fixture 100, including a base 1, a clamping component 2, and a fixing component 3. The clamping component 2 includes a clamping member 21 and an elastic rod 22. The clamping member 21 and the elastic rod 22 are both installed on the base 1 and are spaced apart along the width direction of the base 1. The end of the elastic rod 22 away from the base 1 can move toward or away from the clamping member 21 to clamp or release the car door. The fixing component 3 includes a U-shaped support rod and a plurality of first locking members 32. The U-shaped support rod is rotatably installed on the base 1 around the length direction of the base 1. The plurality of first locking members 32 are all disposed on the U-shaped support rod. The plurality of first locking members 32 are respectively used to extend into a plurality of fixing holes of the fuel tank cover to fix the fuel tank cover. Specifically, the fixing component 3 is rotated so that the included angle between the clamping component 2 and the fixing component 3 approximately meets the spraying requirements. Then, the multiple fixing holes on the fuel tank cap are aligned with the multiple first locking parts 32 on the corresponding fixing component 3, and the multiple first locking parts 32 are inserted into the multiple fixing holes, thus fixing the fuel tank cap to the fixing component 3. Then, the operator moves the elastic rod 22 so that the end of the elastic rod 22 away from the base 1 moves away from the clamping component 21. Then, the clamping component 21 and the elastic rod 22 are placed on both sides of the car door, and the elastic rod 22 is moved as close to the car door as possible. Thus, the clamping component 21 and the elastic rod 22 are respectively attached to both sides of the car door, and the fixture clamps... The robot secures the fuel tank cap to the car door, then adjusts the angle between the clamping component 2 and the fixing component 3 according to the painting requirements, ensuring the position and angle of the fuel tank cap meet the painting needs. During painting, after the robot finishes painting one side of the fuel tank cap, it opens the car door and paints the other side of the fuel tank cap, thus completing the painting of the fuel tank cap. Compared to the existing technology where the fixture is directly inserted into the process hole of the car door, this embodiment, through the cooperation of the clamping component 21 and the elastic rod 22, can more firmly clamp the car door. This prevents the clamping component 2 from loosening when the robot opens the car door, preventing the fixture from tilting or detaching from the car door, improving the painting quality, and eliminating the need for frequent rework, thereby improving painting efficiency. One end of the elastic rod 22 can move to adapt to different sized car doors, ensuring that the fixture will not tilt or detach due to external forces during the painting process. The design of the U-shaped support rod rotating around the length of the base 1 allows the fixture to adjust its angle according to actual needs, facilitating more precise alignment of the fuel tank cap and increasing operational flexibility and adaptability. Multiple first locking elements 32 are mounted on the U-shaped support rod and are respectively used to extend into multiple fixing holes of the fuel tank cap. This design makes the installation and removal of the fuel tank cap simple and quick, reduces the need for manual adjustment, and improves work efficiency. Because this fixture can more firmly fix the fuel tank cap and can flexibly adjust its position and angle according to actual conditions, it helps the robot to perform more precise spraying operations, thereby improving the quality of spraying.
[0033] Please see Figure 1 and Figure 2 In one embodiment, multiple elastic rods 22 are provided, spaced apart along the length of the base 1. The multiple elastic rods 22 disperse the clamping force, resulting in more uniform and stable contact between the fixture and the car door. Compared to a single elastic rod 22, multiple elastic rods 22 effectively prevent excessive localized force or instability, reducing the risk of loosening. When the robot opens the car door for painting, the multiple elastic rods 22 work together to further reduce the possibility of fixture tilting or detachment. The design of multiple elastic rods 22 allows the fixture to automatically adjust its clamping position and force according to the surface contour of the car door during clamping, avoiding clamping failure caused by uneven car door surfaces. It also makes installation and removal of the fixture more convenient for operators, as multiple elastic rods 22 can provide support simultaneously, reducing the workload of manual adjustment.
[0034] Please see Figures 1 to 3 In one embodiment, the clamping component 2 further includes a limiting member 23, one end of which is mounted on the base 1, and the other end of which is used to extend into the limiting hole of the door. Rotate the fixing component 3 so that the included angle between the clamping component 2 and the fixing component 3 approximately meets the spraying requirements. Then, align the multiple fixing holes on the fuel tank cap with the multiple first locking parts 32 on the corresponding fixing component 3. Insert the multiple first locking parts 32 into the multiple fixing holes, thus fixing the fuel tank cap to the fixing component 3. Then, the operator moves the elastic rod 22 so that the end of the elastic rod 22 away from the base 1 moves away from the clamping component 21. Then, place the clamping component 21 and the elastic rod 22 on both sides of the car door, insert the limiting part 23 into the limiting hole of the car door, and then move the elastic rod 22 as close to the car door as possible. Thus, the clamping part 21 and the elastic rod 22 are close to both sides of the car door, and the fixture is clamped to the car door. Then, adjust the angle between the clamping component 2 and the fixing component 3 according to the spraying requirements so that the position and angle of the fuel tank cap meet the spraying requirements. In this way, the fixture is fixed by the limiting rod and the clamping component 2, which further improves the installation firmness of the fixture.
[0035] Please see Figure 1 and Figure 3 In one embodiment, the fixing component 3 further includes a second locking member 33. A rotating hole is formed on the U-shaped support rod, and the second locking member 33 is rotatably installed in the rotating hole. The second locking member 33 is used to rotate to abut against the fuel tank cap. The multiple fixing holes on the fuel tank cap are aligned with the multiple first locking members 32 on the corresponding fixing component 3. The multiple first locking members 32 are inserted into the multiple fixing holes, and then the second locking member 33 is rotated so that it abuts against the fuel tank cap. In this way, each first locking member 32 will abut against the wall of the corresponding fixing hole, thus preventing the fixing holes on the fuel tank cap from disengaging from the first locking member 32.
[0036] Please see Figure 3 In one embodiment, a mounting hole 311 is also formed on the U-shaped support rod. An elastic element is provided at the bottom of the mounting hole 311. The other end of the elastic element is connected to a ball 4 that can slide along the axial direction of the mounting hole 311. The ball 4 partially extends out of the mounting hole 311 in the natural state of the elastic element. The second locking element 33 is used to rotate to the ball 4 and press down the ball 4 to retract it into the mounting hole 311. The second locking element 33 continues to rotate until one side of the second locking element 33 abuts against the oil tank cover. The elastic element drives the ball 4 to extend out of the mounting hole 311, and the other side of the second locking element 33 abuts against the ball 4. Align the multiple fixing holes on the fuel tank cap with the multiple first locking elements 32 on the corresponding fixing components 3. Insert the multiple first locking elements 32 into the multiple fixing holes. Then rotate the second locking element 33 until it reaches the ball bearing 4. The second locking element 33 will press the ball bearing 4, causing it to retract into the mounting hole 311 and compress the elastic element. The elastic element deforms and continues to push the second locking element 33 through the mounting hole 311. At this time, the elastic element returns to its original shape, and the ball bearing 4 will extend out of the mounting hole 311 under the action of the elastic element until the second locking element 33 abuts against the fuel tank cap. At this time, both sides of the locking rod abut against the fuel tank cap and the ball bearing 4 respectively. In this way, each first locking element 32 will abut against the hole wall of the corresponding fixing hole. This can prevent the fixing holes on the fuel tank cap from disengaging from the first locking elements 32. The movement of the second locking element 33 will also be restricted by the fuel tank cap and the ball bearing 4, which can further improve the installation firmness of the fuel tank cap.
[0037] Please see Figure 1 and Figure 3In one embodiment, the second locking member 33 includes a first connecting rod 331 and a second connecting rod 332 connected to each other. The first connecting rod 331 is rotatably mounted in the rotating hole. The first connecting rod 331 is used to rotate to the ball 4 and press down the ball 4 to retract it into the mounting hole 311. The first connecting rod 331 continues to rotate until the second connecting rod 332 abuts against the oil tank cap. At this time, the top end of the second connecting rod 332 abuts against a first locking member 32. The elastic member drives the ball 4 to extend out of the mounting hole 311, and the first connecting rod 331 abuts against the ball 4. Align the multiple fixing holes on the fuel tank cap with the multiple first locking elements 32 on the corresponding fixing components 3, ensuring that the multiple first locking elements 32 are inserted into the multiple fixing holes to initially fix the position of the fuel tank cap. Rotate the first connecting rod 331 to move it to the position of the ball 4, and continue to apply pressure to make the first connecting rod 331 press down on the ball 4, causing the ball 4 to retract into the mounting hole 311 and compress the elastic element. Continue to rotate the first connecting rod 331 until one side of the second connecting rod 332 contacts the fuel tank cap and the top of the second connecting rod 332 abuts against one of the first locking elements 32. At this time, the elastic element pushes the ball 4 out of the mounting hole 311, so that the first connecting rod 331 abuts against the ball 4, completing the locking process of the second locking element 33. Confirm that all connection points are correctly locked to ensure that the fuel tank cap is firmly fixed on the fixture, preparing for subsequent spraying operations. In this embodiment, the combination of the first connecting rod 331 and the second connecting rod 332 provides a dual locking mechanism, further enhancing the reliability of the fixation.
[0038] Please see Figure 1 and Figure 3 In one embodiment, the first connecting rod 331 is cylindrical. By making the first connecting rod 331 cylindrical, it is easier for the first connecting rod 331 to press down the ball 4 when passing through it, making the operation easier for the operator.
[0039] In one embodiment, the elastic rod 22 is irregularly multi-segmented and bent. This irregular, multi-segmented design allows the elastic rod 22 to better conform to complex door surfaces, especially curved, recessed, or other non-planar structures. This design improves the fixture's adaptability to different vehicle models and door shapes, reducing clamping instability caused by differences in door shape. The multi-segmented structure can provide support in multiple directions, avoiding excessive force in one direction or poor local contact.
[0040] Please see Figures 1 to 3In one embodiment, the limiting member 23 includes a first horizontal bar 231, a second horizontal bar 232, a vertical bar 233, and a reinforcing bar 234. The first horizontal bar 231 is connected to the base 1. One end of the vertical bar 233 is connected to the first horizontal bar 231, and the other end of the vertical bar 233 is connected to the second horizontal bar 232. The second horizontal bar 232 is used to extend into the limiting hole of the door. Both ends of the reinforcing bar 234 are connected to the first horizontal bar 231 and the vertical bar 233, respectively. By using the composite structure composed of the first horizontal bar 231, the second horizontal bar 232, the vertical bar 233, and the reinforcing bar 234, the overall rigidity and stability of the limiting member 23 are significantly improved. In particular, the addition of the reinforcing bar 234 effectively enhances the strength of the structure, preventing bending or deformation during operation. The connection method between the components helps to evenly distribute the force, reducing the risk of structural damage caused by excessive local force. The second crossbar 232 is specially designed to extend into the limiting hole of the car door, ensuring that the fixture and the car door can be accurately positioned, avoiding problems such as uneven spraying or insufficient coverage due to positional deviation.
[0041] In one embodiment, the outer surfaces of the base 1, the fixing component 3, and the clamping component 2 are all covered with a stainless steel layer. In the prior art, fixtures are generally made of iron, requiring prolonged immersion in chemical cleaning agents to remove paint. However, iron is severely corroded by these cleaning agents, causing paint to seep into the corroded areas of the fixture during spraying. This results in incomplete cleaning, with paint residue falling onto the vehicle body, affecting the quality of the paint job. In this embodiment, the outer surfaces of the base 1, the fixing component 3, and the clamping component 2 are all covered with a stainless steel layer. This stainless steel layer prevents corrosion, thus improving cleaning efficiency and spraying quality.
[0042] The above are merely exemplary embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the technical concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.
Claims
1. A spray tool, characterized by, The utility model provides a kind of vehicle door locking device, including: Base; Clamping component, the clamping component includes clamping piece and elastic rod, the clamping piece and the elastic rod are installed to the base, and are spaced apart along the width direction of the base, and the end of the elastic rod away from the base can be moved towards or away from the clamping piece for clamping or loosening vehicle door; Fixed component, the fixed component includes U-shaped support rod and multiple first locking pieces, the U-shaped support rod is rotatably installed to the base around the length direction of the base, and multiple first locking pieces are provided on the U-shaped support rod, and multiple first locking pieces are respectively used to extend into multiple fixing holes of fuel tank cover for fixing the fuel tank cover.
2. The spray tool of claim 1, wherein The number of the elastic rods is multiple, and multiple elastic rods are spaced apart along the length direction of the base.
3. The spray tool of claim 1, wherein The clamping component further includes a limiting piece, one end of the limiting piece is installed to the base, and the other end of the limiting piece is used to extend into a limiting hole of the vehicle door.
4. The spray tool of claim 1, wherein, The fixed component further includes a second locking piece, a rotating hole is formed on the U-shaped support rod, the second locking piece is rotatably installed in the rotating hole, and the second locking piece is used to rotate to abut against the fuel tank cover.
5. The spray tool of claim 4, wherein, An installation hole is further formed on the U-shaped support rod, a resilient piece is provided at the bottom of the installation hole, the other end of the resilient piece is connected with a ball that can axially slide in the installation hole, the ball partially extends out of the installation hole in the natural state of the resilient piece, the second locking piece is used to rotate to the ball and press the ball to retract into the installation hole, the second locking piece continues to rotate until one side of the second locking piece abuts against the fuel tank cover, the resilient piece drives the ball to extend out of the installation hole, and the other side of the second locking piece abuts against the ball.
6. The spray tool of claim 5, wherein, The second locking piece includes a first connecting rod and a second connecting rod connected with each other, the first connecting rod is rotatably installed in the rotating hole, the first connecting rod is used to rotate to the ball and press the ball to retract into the installation hole, the first connecting rod continues to rotate until the second connecting rod abuts against the fuel tank cover, at this time, the top end of the second connecting rod is used to abut against a first locking piece, the resilient piece drives the ball to extend out of the installation hole, and the first connecting rod abuts against the ball.
7. The spray tool of claim 6, wherein The first connecting rod is cylindrical.
8. The spray tool of any one of claims 1 to 7, wherein, The elastic rod is irregularly bent in multiple sections.
9. The spray tool of claim 3, wherein, The limiting piece includes a first horizontal rod, a second horizontal rod, a vertical rod, and a reinforcing rod, the first horizontal rod is connected with the base, one end of the vertical rod is connected with the first horizontal rod, the other end of the vertical rod is connected with the second horizontal rod, the second horizontal rod is used to extend into the limiting hole of the vehicle door, and two ends of the reinforcing rod are respectively connected with the first horizontal rod and the vertical rod.
10. The spray tool of any one of claims 1 to 6, wherein, The outer surfaces of the base, the fixed component, and the clamping component are covered with a stainless steel layer.