Tooling for assisting vehicle door painting

Abstract

The application discloses a tool for assisting vehicle door painting, and relates to the technical field of vehicle painting. The tool comprises a mounting frame, a supporting frame and a rotating assembly. The mounting frame is used for detachable connection with a floor of a vehicle body. The supporting frame is used for detachable connection with a door. The rotating assembly comprises a connecting seat and a rotating arm. The connecting seat is connected with the supporting frame. The two ends of the rotating arm are rotatably connected with the connecting seat and the mounting frame respectively. The rotating arm drives the door to rotate relative to the vehicle body through the connecting seat and the supporting frame to open or close an opening. The tool rotates relative to the mounting frame through the rotating arm and sequentially drives the connecting seat, the supporting frame and the door, so that the door can rotate to any angle relative to the vehicle body. The tool effectively increases the spraying range, facilitates all-round spraying of paint on the vehicle body and the door, improves the painting quality of the vehicle, and ensures the safety of the operation without manual assistance.

Description

Technical Field

[0001] This invention relates to the field of vehicle manufacturing technology, and in particular to a tooling for assisting in the painting of vehicle doors. Background Technology

[0002] In vehicle manufacturing, painting is one of the four major processes (stamping, welding, painting, and final assembly), and a crucial production step. Vehicle painting involves applying paint to the inner and outer surfaces of a vehicle using painting robots or manually, followed by paint drying to form a film. To ensure excellent protection and decoration, the vehicle body and doors are typically painted simultaneously. However, in existing sliding door vehicles, the sliding doors can only slide relative to the vehicle body. The movement and installation position of the sliding doors significantly limit the painting range of the painting robot, making it impossible to paint certain inner panel areas (such as the inside of the doors, pedals, and sliding rails). This necessitates manual painting using potentially dangerous techniques. During manual painting, workers are exposed to high VOC (volatile organic compounds) and high benzene compounds in the work environment for extended periods, resulting in low safety and difficulty in achieving even paint coverage, ultimately reducing the overall quality of the vehicle paint job. Summary of the Invention

[0003] The main objective of this invention is to propose a tooling for assisting in the painting of vehicle doors, aiming to solve the problems of low painting quality and poor operational safety.

[0004] To achieve the above objectives, the present invention proposes a tooling for assisting in the painting of vehicle doors. The vehicle includes a body and doors, the body having an opening corresponding to the position of the doors, and the body having a floor. The tooling includes:

[0005] Mounting bracket, which is used for detachable connection to the floor;

[0006] A support frame for detachable connection with the vehicle door;

[0007] A rotating assembly includes a connecting seat and a rotating arm. The connecting seat is connected to the support frame, and the two ends of the rotating arm are rotatably connected to the connecting seat and the mounting frame, respectively. The rotating arm drives the door to rotate relative to the vehicle body through the connecting seat and the support frame to open or close the opening.

[0008] Optionally, the connecting seat includes a first rotating shaft and two connecting plates arranged at intervals in the vertical direction. The two connecting plates are connected to the support frame. The first rotating shaft is connected between the two connecting plates. A second rotating shaft is provided on the mounting frame. A first sleeve and a second sleeve are respectively provided at both ends of the rotating arm. The first sleeve is rotatably fitted outside the first rotating shaft, and the second sleeve is rotatably fitted outside the second rotating shaft.

[0009] Optionally, there are two rotating arms, which are spaced apart. The number of the first rotating shaft and the number of the second rotating shaft are the same as the number of rotating arms. The first sleeve of each rotating arm is rotatably fitted onto the first rotating shaft corresponding to it, and the second sleeve of each rotating arm is rotatably fitted onto the second rotating shaft corresponding to it.

[0010] Optionally, the door has two positioning holes, the support frame includes a support frame, a fixing rod and two positioning pins, the two connecting plates are connected to the support frame, the fixing rod is connected to the end of the support frame away from the connecting plates, and the two positioning pins are respectively disposed on the support frame and the fixing rod, and the two positioning pins are respectively matched with the two positioning holes one by one.

[0011] A handle is provided on the fixing rod, and the door and the handle are detachably connected by a first fastener; the door and the support frame are detachably connected by a second fastener.

[0012] Optionally, a limiting hole is provided on the door, and the tooling further includes a limiting component, which includes a limiting hook. One end of the limiting hook is rotatably connected to the support frame, and the other end of the limiting hook passes through the limiting hole and is hooked onto the door.

[0013] Optionally, the limiting assembly further includes a limiting ring and a limiting rod. The limiting ring is connected to the support frame, and the limiting rod is connected to the limiting hook and located inside the limiting ring. The limiting rod is used to drive the limiting hook to rotate relative to the support frame, so that the limiting ring abuts against the limiting rod, and the limiting hook passing through the limiting hole is hooked onto the vehicle door.

[0014] Optionally, the support frame includes a reinforcing rod, a connecting rod, and four support rods connected end to end in sequence; the four support rods are respectively an inclined rod, a vertical rod, and two horizontal rods arranged at intervals in the vertical direction, and the two ends of each horizontal rod are respectively connected to the inclined rod and the vertical rod; the two ends of the connecting rod are respectively connected to the two horizontal rods and located between the inclined rod and the vertical rod, and the connecting plate is connected between the connecting rod and the vertical rod; the fixing rod is connected to the end of the upper horizontal rod away from the connecting plate, and the reinforcing rod is inclined and connected between the upper horizontal rod and the fixing rod.

[0015] Optionally, the mounting bracket includes a frame and a guide rail detachably connected to the frame. The frame is detachably connected to the floor via a third fastener. The extension direction of the guide rail is consistent with the rotation path of the rotating arm. The rotating arm is provided with a transfer plate detachably connected to the rotating arm at a position corresponding to the guide rail. The side of the transfer plate facing the guide rail is provided with a ball bearing that rolls into contact with the guide rail. The guide rail has a plurality of locking holes spaced apart along the extension direction of the guide rail, and the ball bearing can engage with any one of the locking holes.

[0016] Optionally, the guide rail includes a guide section and two connecting sections. The guide section is connected between the two connecting sections. A connecting arm is respectively provided on the frame at the position corresponding to the two connecting sections. Each connecting arm has a plurality of first connecting holes arranged at intervals along the extension direction of the connecting arm. Each connecting section can be detachably connected to any one of the first connecting holes on the corresponding connecting arm through a fourth fastener. The rotating arm has a plurality of second connecting holes arranged at intervals along the extension direction of the rotating arm. The adapter plate can be detachably connected to any one of the second connecting holes through a fifth fastener.

[0017] Optionally, the floor is provided with mounting holes, and the frame is provided with mounting pins that mate with the mounting holes at positions corresponding to the mounting holes;

[0018] The floor has a snap-fit ​​edge near the opening, and the frame has a plurality of snap-fit ​​slots spaced apart along the extension direction of the snap-fit ​​edge, the snap-fit ​​slots engaging with the snap-fit ​​edge.

[0019] The tooling also includes an adjustment assembly, which includes an adjustment rod and a connecting lug connected to the frame. The connecting lug has a threaded hole through which the adjustment rod passes. The adjustment rod is threadedly connected to the threaded hole and abuts against the floor.

[0020] In this invention, a tooling for assisting in the painting of vehicle doors comprises a rotating arm that rotates relative to a mounting frame, sequentially driving a connecting seat, a support frame, and the door. This causes the door to reciprocate between open and closed positions relative to the vehicle body. During rotation, the rotating arm can be fixed at any position relative to the mounting frame, allowing the door to rotate relative to the vehicle body and be fixed in a suitable position. This facilitates the painting robot to spray paint evenly onto the vehicle body and door from all angles, resulting in uniform paint application and easy film formation, thus improving the painting quality of the vehicle. Furthermore, the tooling, through the interaction of the rotating arm and the connecting seat, drives the support frame and the door on the support frame to rotate, allowing the door to rotate relative to the vehicle body to any angle. This effectively increases the painting range of the painting robot, eliminating the need for manual assistance and ensuring operational safety. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. 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 This is a schematic diagram of the tooling in a working position according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the tooling in another working position according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the support frame in a tooling according to an embodiment of the present invention;

[0025] Figure 4 for Figure 3 Enlarged view of region A in the middle;

[0026] Figure 5 This is a three-dimensional structural diagram of the rotating component in a tooling according to an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the planar structure of the rotating component in a tooling according to an embodiment of the present invention;

[0028] Figure 7 This is a three-dimensional structural diagram of the mounting bracket in a tooling according to an embodiment of the present invention;

[0029] Figure 8 This is a schematic diagram of the planar structure of the mounting bracket in a tooling according to an embodiment of the present invention.

[0030] Explanation of icon numbers:

[0031]

[0032]

[0033] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0034] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this embodiment are only used to explain the relative positional relationship and movement of each component in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indicator will also change accordingly.

[0036] Furthermore, in this invention, descriptions involving "first," "second," etc., 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0038] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible to those skilled in the art. If a combination of technical solutions contradicts each other or cannot be implemented, such a combination should be considered non-existent and not within the scope of protection claimed by the present invention. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0039] In this invention, the descriptions of directions such as "up," "down," "front," "back," "left," and "right" are as follows: Figure 1 and Figure 2 The directions shown are for reference only and are used to interpret the location. Figure 1 and Figure 2 The relative positional relationship between the components in the shown posture is such that if the specific posture changes, the directional indication will also change accordingly.

[0040] This invention proposes a tooling for assisting in the painting of vehicle doors.

[0041] This embodiment provides a tooling 100 for assisting in the painting of vehicle doors. The vehicle includes a body and doors, with an opening on the body corresponding to the door position. The body has a floor. The tooling 100 includes a mounting frame 10, a support frame 20, and a rotating assembly 30. The mounting frame 10 is detachably connected to the floor, and the support frame 20 is detachably connected to the door. The rotating assembly 30 includes a connecting seat 31 and a rotating arm 32. The connecting seat 31 is connected to the support frame 20, and the two ends of the rotating arm 32 are rotatably connected to the connecting seat 31 and the mounting frame 10, respectively. The rotating arm 32 drives the door to rotate relative to the body through the connecting seat 31 and the support frame 20 to open or close the opening.

[0042] like Figure 1 and Figure 2 As shown, one end of the rotating arm 32 is rotatably connected to the mounting bracket 10, and the other end of the rotating arm 32 is rotatably connected to the connecting seat 31, and the support frame 20 is connected to the connecting seat 31. During vehicle painting, the mounting bracket 10 is first installed on the floor inside the vehicle body. The rotating arm 32 extends towards the opening, so that the support frame 20 is located at the opening of the vehicle body. Then, the door is installed on the support frame 20 to ensure that the door is stably supported on the support frame 20. The rotating arm 32 rotates relative to the mounting bracket 10 and sequentially drives the connecting seat 31, the support frame 20, and the door, so that the door reciprocates between the open and closed positions relative to the vehicle body. During the rotation, the rotating arm 32 can be fixed in any position relative to the mounting bracket 10, so that the door can rotate relative to the vehicle body and be fixed in a suitable position. This allows the painting robot to spray paint all over the vehicle body and door, resulting in uniform paint spraying and easy film formation, thus improving the painting quality of the vehicle. Furthermore, in this embodiment, the tooling 100, through the cooperation of the rotating arm 32 and the connecting seat 31, drives the support frame 20 and the door on the support frame 20 to rotate, so that the door can rotate relative to the vehicle body to any angle, effectively increasing the spraying range of the painting robot. No manual assistance is required for spraying, ensuring the safety of the operation.

[0043] In this embodiment, the connecting seat 31 includes a first rotating shaft 311 and two connecting plates 312 spaced apart in the vertical direction. The two connecting plates 312 are connected to the support frame 20. The first rotating shaft 311 is connected between the two connecting plates 312. A second rotating shaft 11 is provided on the mounting frame 10. A first sleeve 321 and a second sleeve 322 are respectively provided at both ends of the rotating arm 32. The first sleeve 321 is rotatably fitted outside the first rotating shaft 311, and the second sleeve 322 is rotatably fitted outside the second rotating shaft 11. Figure 1 , Figure 2 and Figures 5 to 7 As shown, a first sleeve 321 is provided at one end of the rotating arm 32, and a second sleeve 322 is provided at the other end. The first sleeve 321 is fitted around the first rotating shaft 311 and can rotate relative to the first rotating shaft 311. A connecting plate 312 is connected to the upper and lower ends of the first rotating shaft 311, respectively. A support frame 20 is connected to the two connecting plates 312 on the side away from the rotating arm 32. The second sleeve 322 is fitted around the second rotating shaft 11 and can rotate relative to the second rotating shaft 11. The second rotating shaft 11 is connected to the mounting frame 10, which is fixed to the floor. The two ends of the rotating arm 32 are rotatably connected to the first rotating shaft 311 and the second rotating shaft 11 respectively through the first sleeve 321 and the second sleeve 322, so that the rotating arm 32 can drive the connecting seat 31 and the support frame 20 to rotate relative to the mounting frame 10. The connection strength is high, and the structure is stable and reliable.

[0044] Furthermore, there are two rotating arms 32, spaced apart. The number of first rotating shafts 311 and second rotating shafts 11 is the same as the number of rotating arms 32. The first sleeve 321 of each rotating arm 32 is rotatably fitted onto the corresponding first rotating shaft 311, and the second sleeve 322 of each rotating arm 32 is rotatably fitted onto the corresponding second rotating shaft 11. Figure 1 , Figure 2 and Figures 5 to 7 As shown, two first rotating shafts 311 are arranged at intervals between the two connecting plates 312, and two second rotating shafts 11 are arranged at intervals on the mounting frame 10. The two ends of each rotating arm 32 are rotatably connected to the corresponding first rotating shaft 311 and second rotating shaft 11. Both rotating arms 32 can drive the support frame 20 to rotate relative to the mounting frame 10 through the first rotating shaft 311 and the connecting plate 312. This not only further improves the stability of the structure, but also ensures that the support frame 20 rotates smoothly and reliably by the linkage between the two rotating arms 32 and the connecting seat 31. The structure is ingeniously designed.

[0045] In this embodiment, two positioning holes are provided on the car door. The support frame 20 includes a support frame 21, a fixing rod 22, and two positioning pins 23. Two connecting plates 312 are connected to the support frame 21. The fixing rod 22 is connected to the end of the support frame 21 away from the connecting plate 312. The two positioning pins 23 are respectively disposed on the support frame 21 and the fixing rod 22, and the two positioning pins 23 are respectively matched with the two positioning holes one by one. A handle 221 is provided on the fixing rod 22. The car door and the handle 221 are detachably connected by a first fastener. The car door and the support frame 21 are detachably connected by a second fastener.

[0046] like Figures 1 to 3 As shown, a positioning pin 23 is provided on the support frame 21 corresponding to one of the positioning holes, and a positioning pin 23 is provided on the fixing rod 22 corresponding to the other positioning hole. Each positioning pin 23 is used to extend into the corresponding positioning hole to position the car door. The fixing rod 22 is vertically arranged and the handle 221 is connected to the upper end of the fixing rod 22. The fixing rod 22 has a first locking hole 222. A first fastener can pass through the first locking hole 222 and the car door to connect the car door to the handle 221. The support frame 21 also has at least two second locking holes 211. The number of second fasteners is the same as the number of second locking holes 211, and each second fastener can pass through the corresponding second locking hole 211 and the car door to connect the car door to the support frame 21. The car door is stably connected to the support frame 20 by the first fastener cooperating with the first locking hole 222 and the second fastener cooperating with the second locking hole 211, and the structure is stable and reliable.

[0047] Furthermore, the handle 221 serves as a grip for the robot. During vehicle painting operations, the robot can grip the handle 221 to pull the support frame 21, causing the support frame 21 to rotate relative to the vehicle body, including the connecting seat 31, rotating arm 32, and door. This is convenient and quick to use, requiring no manual assistance and further improving operational safety. Additionally, a baffle 223 is connected to both sides of the handle 221. These baffles limit the robot's movement, preventing it from slipping off the handle 221 and further enhancing structural reliability.

[0048] In this embodiment, a limiting hole is provided on the car door, and the tooling 100 also includes a limiting component 40. The limiting component 40 includes a limiting hook 41, one end of which is rotatably connected to the support frame 21, and the other end of which passes through the limiting hole and is hooked onto the car door. Figures 2 to 4As shown, one end of the limiting hook 41 is rotatably connected to the support frame 21, and the other end of the limiting hook 41 extends toward the door and bends to form a hook shape. By rotating the limiting hook 41 to a suitable position, the hook-shaped end of the limiting hook 41 passes through the limiting hole and extends into the door. Then, the limiting hook 41 is rotated again so that the hook-shaped end of the limiting hook 41 is hooked with the inside of the door, thereby limiting the door.

[0049] Furthermore, the limiting assembly 40 also includes a limiting ring 42 and a limiting rod 43. The limiting ring 42 is connected to the support frame 21, and the limiting rod 43 is connected to the limiting hook 41 and located inside the limiting ring 42. The limiting rod 43 is used to drive the limiting hook 41 to rotate relative to the support frame 21, so that the limiting ring 42 abuts against the limiting rod 43, and the limiting hook 41, passing through the limiting hole, is hooked onto the door. Figures 2 to 4 As shown, the limiting ring 42 is connected to the side of the support frame 21 away from the car door, and the limiting rod 43 is connected to the end of the limiting hook 41 away from the car door. The limiting rod 43 passes through the limiting ring 42, and the limiting hook 41 is rotatably connected to the support frame 21, allowing the operator to rotate the limiting hook 41 relative to the support frame 21 by holding the limiting rod 43. When installing the car door on the support frame 20, the operator first holds the limiting rod 43 and rotates it relative to the support frame 21 until it abuts against the upper side of the limiting ring 42, so that the hook-shaped end of the limiting hook 41 can pass through the limiting hole and extend into the car door. Then, the operator releases the limiting rod 43, allowing it to rotate relative to the support frame 21 under gravity until it abuts against the lower side of the limiting ring 42, thereby causing the hook-shaped end of the limiting hook 41 to rotate and engage with the inner side of the car door to lock it in place. This method is convenient and quick to use.

[0050] In this embodiment, the support frame 21 includes a reinforcing rod 212, a connecting rod 213, and four support rods connected end to end in sequence. The four support rods are an inclined rod 214, a vertical rod 215, and two horizontal rods 216 arranged at intervals in the vertical direction. The two ends of each horizontal rod 216 are connected to the inclined rod 214 and the vertical rod 215, respectively. The two ends of the connecting rod 213 are connected to the two horizontal rods 216 and are located between the inclined rod 214 and the vertical rod 215. The connecting plate 312 is connected between the connecting rod 213 and the vertical rod 215. The fixing rod 22 is connected to the end of the upper horizontal rod 216 away from the connecting plate 312. The reinforcing rod 212 is inclined and connected between the upper horizontal rod 216 and the fixing rod 22.

[0051] like Figures 1 to 3As shown, a horizontal bar 216 is connected to the upper and lower ends of the vertical bar 215. The two ends of the inclined bar 214 are connected to the ends of the two horizontal bars 216 furthest from the vertical bar 215. The distance between the upper horizontal bar 216 and the inclined bar 214 decreases in the direction away from the vertical bar 215. The connecting bar 213 is vertically arranged and spaced apart from the vertical bar 215. The two ends of each connecting plate 312 are connected to the connecting bar 213 and the vertical bar 215, respectively. This structure has high strength and stability, effectively supporting the car door. Furthermore, the upper horizontal bar 216, the fixed bar 22, and the reinforcing bar 212 are connected end-to-end to form a triangular structure. The reinforcing bar 212 strengthens the structure, further improving its stability. Additionally, a transition plate is connected to the fixed bar 22, and the transition plate has a positioning pin 23 that mates with the car door positioning hole. The transition plate connects the positioning pin 23 and the fixed bar 22.

[0052] In this embodiment, the mounting frame 10 includes a frame 12 and a guide rail 13 detachably connected to the frame 12. The frame 12 is detachably connected to the floor via a third fastener. The extension direction of the guide rail 13 is consistent with the rotation path of the rotating arm 32. The rotating arm 32 is provided with a transfer plate 323 detachably connected to the rotating arm 32 at the position corresponding to the guide rail 13. The side of the transfer plate 323 facing the guide rail 13 is provided with a ball bearing 324 that rolls and engages with the guide rail 13. The guide rail 13 is provided with a plurality of locking holes 131 spaced apart along the extension direction of the guide rail 13. The ball bearing 324 can engage with any one of the locking holes 131.

[0053] like Figures 5 to 8 As shown, the frame 12 has at least two third locking holes 121. The number of third fasteners is the same as the number of third locking holes 121, and each third fastener can pass through the corresponding third locking hole 121 and the floor to connect the frame 12 to the floor, thus realizing the installation and fixation of the tooling 100. The frame 12 is connected to a guide rail 13, and the lower side of the rotating arm 32 is connected to an adapter plate 323. The lower side of the adapter plate 323 is connected to a ball bearing 324. The ball bearing 324 can extend and retract relative to the adapter plate 323, and the ball bearing 324 can reciprocate along the extension direction of the guide rail 13. When the vehicle is being painted, the rotating arm 32 can drive the ball bearing 324 to roll along the guide rail 13 via the adapter plate 323. When the door is rotated to the appropriate position, the ball bearing 324 extends out relative to the adapter plate 323 and enters into the corresponding locking hole 131. The ball bearing 324 engages with the locking hole 131 to limit the door position. This makes the operation convenient and improves the painting efficiency.

[0054] Understandably, when the car door needs to be rotated again for painting, the robot grips the handle 221 so that the handle 221 drives the rotating arm 32 to rotate relative to the mounting bracket 10 via the support frame 21. The rotating arm 32 drives the adapter plate 323 and the ball bearing 324 to move along the extension direction of the guide rail 13. The ball bearing 324 is forced to retract into the adapter plate 323 and rolls along the guide rail 13. When the car door is rotated to the appropriate position, the ball bearing 324 is extended out of the adapter plate 323 under the action of gravity and engages with the corresponding locking hole 131 to limit the car door. The structure is ingeniously designed.

[0055] In this embodiment, the guide rail 13 includes a guide section 132 and two connecting sections 133. The guide section 132 is connected between the two connecting sections 133. A connecting arm 122 is respectively provided on the frame 12 at the position corresponding to the two connecting sections 133. Each connecting arm 122 is provided with a plurality of first connecting holes (not shown) arranged at intervals along the extension direction of the connecting arm 122. Each connecting section 133 can be detachably connected to any one of the first connecting holes on the corresponding connecting arm 122 through a fourth fastener. The rotating arm 32 is provided with a plurality of second connecting holes (not shown) arranged at intervals along the extension direction of the rotating arm 32. The adapter plate 323 can be detachably connected to any one of the second connecting holes through a fifth fastener.

[0056] Specifically, each end of the guide section 132 is connected to a connecting section 133. The frame 12 is provided with two connecting arms 122, which correspond one-to-one with the two connecting sections 133. Each connecting arm 122 has multiple first connecting holes, which are spaced apart along the extension direction of the connecting arm 122. A fourth fastener can pass through the first connecting hole and the connecting section 133 to connect the guide rail 13 to the connecting arm 122. The fourth fastener can cooperate with any one of the first connecting holes to adjust the connection position of the guide rail 13 according to actual usage requirements. Furthermore, the rotating arm 32 has multiple second connecting holes, which are spaced apart along the extension direction of the rotating arm 32. A fifth fastener can pass through the second connecting hole and the adapter plate 323 to connect the adapter plate 323 and the ball bearing 324 to the rotating arm 32. The fifth fastener can cooperate with any one of the second connecting holes to connect the ball bearing 324 to the position corresponding to the guide roller. This design has the advantages of convenient and quick adjustment and high structural flexibility.

[0057] In this embodiment, mounting holes are provided on the floor, and mounting pins 123 that mate with the mounting holes are provided on the frame 12 at the corresponding positions of the mounting holes; a snap-fit ​​edge is provided on the floor near the opening, and multiple snap-fit ​​grooves 124 are provided on the frame 12 at intervals along the extension direction of the snap-fit ​​edge, and the snap-fit ​​grooves 124 snap-fit ​​with the snap-fit ​​edge; the tooling 100 also includes an adjustment component 50, which includes an adjustment rod and a connecting lug 51 connected to the frame 12. The connecting lug 51 has a threaded hole 511 for the adjustment rod to pass through, and the adjustment rod is threadedly connected to the threaded hole 511, and the adjustment rod abuts against the floor.

[0058] like Figure 7 and Figure 8 As shown, a mounting pin 123 is connected to the frame 12. The mounting pin 123 is used to extend into the mounting hole on the floor to position the frame 12. The door frame has a snap-fit ​​edge, which is located near the opening and extends horizontally. The frame 12 has at least two spaced snap-fit ​​grooves 124, which are used for the snap-fit ​​edge to extend into and snap into the snap-fit ​​edge, further positioning the frame 12. The frame 12 is also connected to at least two spaced connecting ears 51. Each connecting ear 51 has a threaded hole 511 for an adjusting rod to pass through. The number of adjusting rods is the same as the number of connecting ears 51, and the outer periphery of the adjusting rod has an external thread that mates with the threaded hole 511. The lower end of the adjusting rod is used to abut against the floor. By adjusting the connection position of the adjusting rod and the threaded hole 511, the height of the connecting ear 51 relative to the floor is adjusted, thereby adjusting the height of the frame 12 and further improving the flexibility of the structure.

[0059] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A tooling for assisting in painting vehicle doors, the vehicle comprising a body and doors, wherein the body has an opening corresponding to the position of the doors, and the body has a floor, characterized in that, The tooling includes: Mounting bracket, which is used for detachable connection to the floor; A support frame for detachable connection with the vehicle door; A rotating assembly includes a connecting seat and a rotating arm. The connecting seat is connected to the support frame, and both ends of the rotating arm are rotatably connected to the connecting seat and the mounting frame, respectively. The rotating arm drives the door to rotate relative to the vehicle body through the connecting seat and the support frame to open or close the opening. The mounting bracket includes a frame and a guide rail detachably connected to the frame. The frame is detachably connected to the floor via a third fastener. The extension direction of the guide rail is consistent with the rotation path of the rotating arm. The rotating arm is provided with a transfer plate detachably connected to the rotating arm at a position corresponding to the guide rail. The side of the transfer plate facing the guide rail is provided with a ball bearing that rolls and engages with the guide rail. The ball bearing can extend and retract relative to the transfer plate. The guide rail has multiple locking holes spaced apart along the extension direction of the guide rail. The ball bearing can engage with any one of the locking holes.

2. The tooling for assisting in the painting of vehicle doors as described in claim 1, characterized in that, The connecting seat includes a first rotating shaft and two connecting plates arranged at intervals in the vertical direction. The two connecting plates are connected to the support frame. The first rotating shaft is connected between the two connecting plates. A second rotating shaft is provided on the mounting frame. A first sleeve and a second sleeve are respectively provided at both ends of the rotating arm. The first sleeve is rotatably fitted outside the first rotating shaft, and the second sleeve is rotatably fitted outside the second rotating shaft.

3. The tooling for assisting in the painting of vehicle doors as described in claim 2, characterized in that, The number of rotating arms is two, and the two rotating arms are arranged at intervals. The number of the first rotating shaft and the number of the second rotating shaft are the same as the number of rotating arms. The first sleeve of each rotating arm is rotatably sleeved on the first rotating shaft corresponding to it, and the second sleeve of each rotating arm is rotatably sleeved on the second rotating shaft corresponding to it.

4. The tooling for assisting in the painting of vehicle doors as described in claim 2, characterized in that, The door has two positioning holes. The support frame includes a support frame, a fixing rod and two positioning pins. The two connecting plates are connected to the support frame. The fixing rod is connected to the end of the support frame away from the connecting plates. The two positioning pins are respectively set on the support frame and the fixing rod, and the two positioning pins are respectively matched with the two positioning holes. A handle is provided on the fixing rod, and the door and the handle are detachably connected by a first fastener; the door and the support frame are detachably connected by a second fastener.

5. The tooling for assisting in the painting of vehicle doors as described in claim 4, characterized in that, The door has a limiting hole, and the tooling also includes a limiting component, which includes a limiting hook. One end of the limiting hook is rotatably connected to the support frame, and the other end of the limiting hook passes through the limiting hole and is hooked onto the door.

6. The tooling for assisting in the painting of vehicle doors as described in claim 5, characterized in that, The limiting assembly further includes a limiting ring and a limiting rod. The limiting ring is connected to the support frame, and the limiting rod is connected to the limiting hook and located inside the limiting ring. The limiting rod is used to drive the limiting hook to rotate relative to the support frame, so that the limiting ring abuts against the limiting rod, and the limiting hook passing through the limiting hole is hooked onto the car door.

7. The tooling for assisting in the painting of vehicle doors as described in claim 4, characterized in that, The support frame includes a reinforcing rod, a connecting rod, and four support rods connected end to end in sequence. The four support rods are an inclined rod, a vertical rod, and two horizontal rods spaced apart in the vertical direction. The two ends of each horizontal rod are connected to the inclined rod and the vertical rod, respectively. The two ends of the connecting rod are connected to the two horizontal rods and are located between the inclined rod and the vertical rod. The connecting plate is connected between the connecting rod and the vertical rod. The fixing rod is connected to the end of the upper horizontal rod away from the connecting plate. The reinforcing rod is inclined and connected between the upper horizontal rod and the fixing rod.

8. The tooling for assisting in the painting of vehicle doors as described in any one of claims 1 to 7, characterized in that, The guide rail includes a guide section and two connecting sections. The guide section is connected between the two connecting sections. A connecting arm is provided on the frame at the position corresponding to the two connecting sections. Each connecting arm has multiple first connecting holes spaced apart along the extension direction of the connecting arm. Each connecting section can be detachably connected to any one of the first connecting holes on the corresponding connecting arm through a fourth fastener. The rotating arm has multiple second connecting holes spaced apart along the extension direction of the rotating arm. The adapter plate can be detachably connected to any one of the second connecting holes through a fifth fastener.

9. The tooling for assisting in the painting of vehicle doors as described in any one of claims 1 to 7, characterized in that, The floor is provided with mounting holes, and the frame is provided with mounting pins that cooperate with the mounting holes at the corresponding positions of the mounting holes; The floor has a snap-fit ​​edge near the opening, and the frame has a plurality of snap-fit ​​slots spaced apart along the extension direction of the snap-fit ​​edge, the snap-fit ​​slots engaging with the snap-fit ​​edge. The tooling also includes an adjustment assembly, which includes an adjustment rod and a connecting lug connected to the frame. The connecting lug has a threaded hole through which the adjustment rod passes. The adjustment rod is threadedly connected to the threaded hole and abuts against the floor.

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