A car body self-overturning paint spraying and baking room

Abstract

The present application relates to the technical field of vehicle body manufacturing, in particular to a vehicle body self-overturning paint spraying and baking house, comprising a base, a tooling rack and a multi-shaft driving mechanism, a bearing platform is arranged on the base, the bearing platform forms an adjustable support structure with a rotating lug, an inclined support rod and an adjusting cylinder for controlling the inclination angle of the tooling rack. One end of the tooling rack is provided with a fixed shaft seat, and the other end is provided with a multi-shaft driving mechanism. The multi-shaft driving mechanism comprises a transmission box, a shaft disc seat, an overturning work disc and a damping locking assembly, a first driving motor and a second driving motor are used to drive a secondary shaft and a main shaft rod respectively, so as to realize the horizontal rotation and longitudinal overturning of the workpiece. The overturning work disc is connected with the gear disc through a transmission shaft, forming a multi-shaft linkage transmission structure; the damping locking assembly is matched with the bottom surface of the main shaft rod through a damping shaft disc, providing physical locking force. The present application realizes multi-angle automatic overturning and posture locking of the vehicle body, and improves the consistency, safety and automation level of spraying.

Description

Technical Field

[0001] This invention relates to the field of vehicle body manufacturing technology, specifically to a self-rotating paint spraying and baking booth for vehicle bodies. Background Technology

[0002] With the development of the automotive industry and automated painting technology, the requirements for flexible adjustment of working posture and consistency of processes during surface treatment such as painting and baking are increasing. In traditional paint booths, car bodies are usually positioned using a single axis or fixed bracket, which has limited flipping capability and inconvenient angle adjustment, making it difficult to meet the painting needs of complex curved surfaces or multi-directional surfaces. This can easily lead to problems such as painting dead corners or uneven film thickness, thus affecting the quality of the finished product.

[0003] To address the issue of blind spots in spraying, some equipment has incorporated simple flipping mechanisms. However, existing flipping devices still suffer from the following major technical shortcomings:

[0004] Insufficient freedom of rotation and inaccurate angle control: Most existing technologies use single-axis electric rotation mechanisms, which cannot achieve precise posture adjustment of the vehicle body in multiple directions with high degree of freedom. The adjustment of the rotation angle depends on manual intervention or limit devices, making it difficult to achieve automated control and high consistency painting.

[0005] Poor stability during the flipping process: Existing flipping structures lack effective attitude stabilization and locking devices. After flipping to the target angle, the workpiece is prone to slight movement due to inertia or impact from the spraying equipment, affecting the spraying accuracy. This is especially true for vehicles with asymmetrical center of gravity, which pose a significant risk of attitude drift.

[0006] Low level of intelligence and slow feedback response in the control system: Although some equipment is equipped with control modules, it is mostly semi-automatic and lacks a highly integrated sensor feedback system and closed-loop adjustment capability. It cannot realize intelligent adjustment of the rolling rhythm and locking logic according to the vehicle body status, resulting in low operating efficiency and poor process reliability.

[0007] Therefore, there is an urgent need to provide a car body self-rotating spray painting and baking equipment with multi-axis linkage drive, stable attitude locking, and high degree of automation to meet the requirements of modern spray painting production lines for flexible, high-precision, and high-efficiency operation. Summary of the Invention

[0008] This invention aims to solve the technical problems existing in the current car body painting and baking process, such as limited spraying angle, unstable flipping action, frequent manual intervention and low degree of automation, and provides a car body self-flipping painting and baking booth with reasonable structure, stable flipping, precise control and multi-degree-of-freedom adjustment capability.

[0009] The technical solution of this invention not only enables free adjustment of the vehicle body rollover angle and multi-station spraying, but also significantly improves spraying consistency, safety and automation level through the coordinated control of damping locking components and automatic control system.

[0010] To achieve the above objectives, the present invention provides the following technical solution, which has the following technical effects:

[0011] A car body self-turning spray painting booth includes: a base, a tooling frame, and a multi-axis drive mechanism. The base surface is provided with a support platform, and one end of the support platform is rotatably connected to a rotating lug fixed to the base surface. A diagonal brace is slidably installed on the bottom surface of the support platform, and an adjusting cylinder is movably connected to the surface of the diagonal brace. The other end of the adjusting cylinder is rotatably installed on the base surface. The tooling frame is rotatably installed on the support platform surface. A fixed shaft seat is fixedly installed on one end of the tooling frame surface, and the multi-axis drive mechanism is fixed to the other end of the tooling frame surface.

[0012] The base surface is provided with a support platform. One end of the support platform is rotatably connected to the base through a rotating lug structure. The bottom is slidably installed with a diagonal brace and is connected to the base through an adjusting cylinder. This structure forms a flexible and adjustable support system. The tilt angle of the support platform is controlled by the adjusting cylinder, thereby adapting to different workpiece center of gravity and posture requirements and improving the stability and versatility of the whole machine.

[0013] The tooling frame is mounted on the surface of the bearing platform via a rotating shaft. One end is equipped with a fixed shaft seat, and the other end is equipped with a multi-axis drive mechanism. This layout allows the drive structure and positioning structure to carry different functions, improving the modular design capability and ease of assembly and disassembly of the equipment.

[0014] The tilting disc is connected to the shaft disc seat via a bearing bracket, and is transmitted to the gear disc via a power chain formed by the drive shaft and the main shaft. The auxiliary drive shaft drives the shaft disc seat to rotate via a synchronous belt. The combination structure of the gear disc and the drive shaft ensures the stability of force transmission during the tilting process and eliminates loss of control or slippage caused by off-center load during the tilting process.

[0015] The surface of the support is provided with a turntable seat for driving the tooling frame to rotate. The turntable seat adopts a worm gear drive assembly. The worm gear transmission structure has self-locking and high transmission ratio, which is beneficial to the stable rotation control of the heavy-duty tooling frame and prevents position deviation caused by excessive rotational inertia.

[0016] The flipping tray and the fixed shaft seat are located on the same axis, and tooling fixtures are provided on opposite sides; the symmetrical arrangement facilitates clamping vehicle workpieces, improves clamping stability, reduces shaking during flipping, and improves the consistency of spraying quality.

[0017] The shaft plate seat and the main shaft are arranged coaxially, and the axis of the main shaft is perpendicular to the surface of the transmission box. The auxiliary shaft is connected to the shaft plate seat through a synchronous belt. This realizes "vertical + horizontal" dual-axis independent drive, forming a separate transmission system, which helps to reduce system coupling interference and improve the stability and flexible control capability of drive response.

[0018] The multi-axis drive mechanism includes a transmission box, a shaft plate seat, a tilting disc, and a damping locking assembly arranged inside the transmission box. The bottom surface of the transmission box is equipped with a first drive motor and a second drive motor. The shaft plate seat is rotatably mounted on the surface of the transmission box, and a bearing bracket with opposing fixed shaft seats is fixedly mounted on the top surface of the shaft plate seat. The tilting disc is rotatably mounted on the surface of the bearing bracket, and a gear disc is fixedly mounted on one side of the tilting disc. A rotatable drive shaft is arranged through the surface of the shaft plate seat. A main shaft located inside the transmission box is rotatably mounted on the bottom surface of the shaft plate seat. Both ends of the main shaft mesh with the output end of the second drive motor and the bottom end of the drive shaft, respectively. The top end of the drive shaft meshes with the surface of the gear disc. An auxiliary drive shaft is rotatably mounted inside the transmission box, and both ends of the auxiliary drive shaft are connected to the output end of the first drive motor and the surface of the shaft plate seat, respectively. The damping locking assembly is used to contact the bottom surface of the main shaft to increase the rotational damping of the main shaft and to lock the rotation of the main shaft.

[0019] The multi-axis drive mechanism includes a transmission box, a shaft plate seat, a tilting plate, and an internal damping locking assembly. The bottom surface of the transmission box is equipped with a first drive motor and a second drive motor. The dual-motor configuration realizes independent shaft system drive, which can realize horizontal rotation and longitudinal tilting respectively, ensuring tilting accuracy and angle control capability.

[0020] Preferably, one end of the diagonal brace is slidably connected to the surface of the bearing platform and the other end is rotatably mounted on the surface of the base. A connecting rod is movably connected between the base and the bearing platform. The connecting rod is a two-section connecting rod structure used to improve the deflection stability of the bearing platform.

[0021] The diagonal brace is slidably connected to the bearing platform, the adjusting cylinder is rotatably connected to the base, and there is a two-section connecting rod between the base and the bearing platform; this structure can form a three-point support structure, which improves the structural stability when the bearing platform tilts, reduces vibration and offset, and ensures the linearity and smoothness of the overturning process.

[0022] Preferably, the surface of the support platform is provided with a turntable seat for driving the tooling frame to rotate, and the turntable seat is driven by a worm gear drive assembly.

[0023] Preferably, the flipping worktable and the fixed shaft seat are located on the same axis, and the opposite surfaces of the flipping worktable and the fixed shaft seat are provided with tooling components for positioning and fixing the vehicle body.

[0024] Preferably, the shaft disc seat and the main shaft are located on the same axis and the axis of the main shaft is perpendicular to the surface of the transmission box, the axis of the flipping work plate is parallel to the surface of the transmission box, and the top end of the auxiliary drive shaft is fitted with a synchronous belt to the surface of the shaft disc seat for transmission between the auxiliary drive shaft and the shaft disc seat.

[0025] Preferably, the damping locking assembly includes a support rod, a lever, and a drive rod fixed inside the transmission box. One end of the support rod is fixed to the bottom surface of the transmission box, and the lever is rotatably mounted on the bottom surface of the support rod. One end of the lever is movably connected to the output end of the drive rod, and the other end is movably connected to a damping shaft disk. The damping shaft disk is arranged perpendicular to the surface of the transmission box and opposite to the bottom surface of the main shaft.

[0026] The damping locking assembly includes: a support rod, a lever, a drive rod, and a damping disc, the damping disc being vertically arranged and capable of moving up and down;

[0027] By utilizing a mechanical structure to achieve physical locking and rotational damping, the system effectively prevents the flipping position from shifting due to inertia or external forces during static spraying, thus improving the safety of the posture locking. The damping disc and the bottom surface of the main shaft face each other, and both surfaces have a roughened structure; the surface roughening treatment increases friction, making the locking effect more stable and reliable, ensuring that no slight angular displacement occurs during spraying, and improving the consistency of the finished product.

[0028] Preferably, the top surface of the damping shaft disc and the bottom surface of the main shaft are opposite each other, and the opposite surfaces are rough. The damping shaft disc can move perpendicular to the surface of the transmission box.

[0029] Preferably, it also includes an automatic control system, which includes:

[0030] The controller module is used to receive user input or preset commands;

[0031] Sensor assemblies are installed on the tilting tray, main shaft and tooling frame respectively, and are used to monitor the tilting angle, load status and vehicle position in real time.

[0032] The drive control circuit is electrically connected to the first drive motor and the second drive motor, and is used to precisely control the motor speed and start / stop according to the signal from the controller.

[0033] The damping control unit, connected to the drive rod, is used to control the opening and closing of the damping shaft disc;

[0034] The feedback loop is used to feed back the status of each action unit to the controller in real time for closed-loop control, so as to realize the automatic adjustment and locking of the flipping posture.

[0035] The controller module executes the flipping process and attitude strategy; sensors collect the tooling position, flipping angle and load in real time; the drive circuit precisely drives the motor according to the control signal; the damping control unit controls the opening and closing of the locking mechanism; the feedback loop realizes the closed-loop regulation of the system state;

[0036] The entire control system achieves multi-degree-of-freedom, full-process automated control, significantly improving the accuracy, efficiency, and safety of flipping operations, and adapting to the needs of flexible spraying production.

[0037] The beneficial effects achieved by this invention are as follows:

[0038] 1. In this invention, the horizontal rotation and longitudinal flipping of the vehicle body are achieved by using a linkage structure configuration of a multi-axis drive mechanism and combining the independent drive modes of the first drive motor and the second drive motor. This can adapt to the painting requirements of different parts, effectively avoid painting dead angles, and adopt a high-precision transmission shaft, a gear plate meshing structure, and a multi-point adjustment mechanism of the support platform and support rod. Combined with an automatic control system, the flipping angle adjustment process has good linear control characteristics and repeatability, meeting the needs of intelligent manufacturing.

[0039] 2. The present invention is equipped with a damping locking component, which, combined with the rough surface pressing structure of the damping shaft disc and the main shaft, can physically lock the flipped state after the flipping is completed, so as to avoid the posture change caused by vibration or center of gravity shift during the spraying process, thereby improving the structural stability and operational safety of the spraying stage.

[0040] 3. In this invention, the system integrates a controller, an angle sensor, and a load monitoring and feedback control loop, which can intelligently determine and adjust the start, stop, and locking actions of each motor according to the vehicle body posture and painting process requirements, thereby achieving fully automatic control, effectively reducing manual intervention, and improving production efficiency. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present invention;

[0042] Figure 2 This is a schematic diagram of the surface structure of a tooling frame according to an embodiment of the present invention;

[0043] Figure 3 This is a schematic diagram of the base surface structure according to an embodiment of the present invention;

[0044] Figure 4 This is a schematic diagram of a multi-axis drive mechanism according to an embodiment of the present invention;

[0045] Figure 5 This is a schematic diagram of the internal structure of the transmission box according to an embodiment of the present invention;

[0046] Figure 6This is a schematic diagram of the transmission structure of the second drive motor and the tilting disc according to an embodiment of the present invention;

[0047] Figure 7 This is a schematic diagram of the first drive motor and shaft disk seat structure according to an embodiment of the present invention;

[0048] Figure 8 This is a schematic diagram of the installation structure of a damping locking component according to an embodiment of the present invention.

[0049] Figure label:

[0050] 100. Base; 110. Bearing platform; 120. Connecting rod; 111. Rotary lug; 112. Diagonal brace; 113. Adjusting cylinder;

[0051] 200. Tooling fixture; 210. Fixed shaft seat;

[0052] 300. Multi-axis drive mechanism; 310. Transmission box; 320. Shaft plate seat; 330. Tilting work plate; 340. Damping locking assembly; 311. First drive motor; 312. Second drive motor; 321. Bearing bracket; 322. Transmission shaft; 323. Main shaft; 324. Auxiliary drive shaft; 331. Gear plate; 341. Support rod; 342. Lever; 343. Drive rod; 344. Damping shaft plate. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0054] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the invention.

[0055] The following describes, with reference to the accompanying drawings, some embodiments of a vehicle body self-rotating spray painting and baking booth provided by the present invention.

[0056] Combination Figures 1 to 8As shown, the present invention provides a self-tilting paint booth for car bodies, comprising a base 100, a tooling frame 200, and a multi-axis drive mechanism 300. The base 100 serves as the installation platform for the present invention, with a support platform 110 fixedly mounted on its surface. One end of the support platform 110 is rotatably connected to the base 100 via a rotating lug 111, providing tilt support for the tooling frame 200. A diagonal brace 112 is slidably connected to the bottom surface of the support platform 110, with one end slidably connected to the support platform 110 and the other end rotatably connected to the base 100 via an adjusting cylinder 113. A connecting rod 120 is movably connected between the base 100 and the support platform 110. The connecting rod 120 is a two-section connecting rod structure used to improve the deflection stability of the support platform 110. The adjusting cylinder 113, which can be a hydraulic cylinder or an electric push rod, is used to control the extension and retraction of the diagonal brace 112, enabling fine adjustment of the deflection angle of the support platform 110. A tooling frame 200 is rotatably mounted on the other end of the support platform 110. The tooling frame 200 is equipped with a fixed shaft seat 210 for positioning and supporting the vehicle body. A multi-axis drive mechanism 300 is fixedly mounted on the other end of the tooling frame 200 to realize multi-degree-of-freedom rotation of the vehicle body.

[0057] The multi-axis drive mechanism 300 includes a transmission box 310, a shaft plate seat 320, a tilting disc 330, and an internal damping locking assembly 340. A first drive motor 311 and a second drive motor 312 are respectively mounted on the bottom of the transmission box 310, driving the auxiliary shaft 324 and the main shaft 323 to achieve horizontal rotation and longitudinal tilting of the tilting disc 330. The shaft plate seat 320 is rotatably mounted on the surface of the transmission box 310, and its top surface is provided with a bearing bracket 321, which is opposite to the fixed shaft seat 210 and supports the tilting disc 330 on both sides. The tilting disc 330 is mounted on the bearing bracket 321 via bearings, and a gear disc 331 is fixedly mounted on one side. The transmission shaft 322 passes through the shaft plate seat 320, with its bottom end meshing with the main shaft 323 and its top end meshing with the gear disc 331. The bottom end of the main shaft 323 is connected to the output end of the second drive motor 312, realizing the longitudinal tilting action of the tilting disc 330. The auxiliary drive shaft 324 is connected to the output end of the first drive motor 311. Through the synchronous belt drive between it and the shaft plate seat 320, the horizontal rotation of the entire tooling frame 200 is realized, which facilitates the adjustment of the painting angle.

[0058] The damping locking assembly 340 is used to keep the spindle 323 stable during the spraying process and prevent accidental overturning. This assembly includes a support rod 341, a lever 342, a drive rod 343, and a damping disc 344. The support rod 341 is fixedly installed inside the transmission box 310. The lever 342 is rotatably installed at the bottom of the support rod 341, with one end connected to the output end of the drive rod 343 and the other end connected to the damping disc 344. The damping disc 344 is arranged perpendicular to the surface of the transmission box 310, with its top surface facing the bottom surface of the spindle 323, and both surfaces have a roughened structure to improve contact friction. Controlled by the drive rod 343, the damping disc 344 can be raised or lowered vertically to lock and release the spindle 323.

[0059] Furthermore, to achieve fully automatic control and improve flipping accuracy, this invention further includes an automatic control system, which comprises:

[0060] Controller module: Central control unit (such as PLC or embedded microcontroller), used to receive information such as user-defined flip angle and spraying sequence instructions;

[0061] Sensor components: Angle sensors, position sensors and load sensors are installed at key locations on the tilting tray 330, main spindle 323 and tooling 200 to monitor rotation angle, vehicle body balance and fixed status in real time.

[0062] Drive control circuit: Connected to the first drive motor 311 and the second drive motor 312 respectively, it precisely adjusts the motor output according to the controller instructions to achieve accurate positioning;

[0063] Damping control unit: connected to drive rod 343, it controls the lifting and pressing of damping shaft disk 344 to achieve opening, closing and locking of main shaft rod 323;

[0064] Feedback loop: The flipping action, positioning status and load status are fed back to the controller in real time to form a closed-loop control, which improves the stability and safety of the system.

[0065] The automatic control system ensures that the tooling rack 200 flipping process is smooth, stable and controllable, avoiding manual intervention and significantly improving the efficiency and consistency of spray painting and baking operations.

[0066] Working principle and usage process of this invention:

[0067] The present invention provides a self-rotating paint booth for car bodies, which, by constructing a multi-axis drive structure and an adaptive load-bearing bracket, and in conjunction with an automatic control system, achieves precise positioning, multi-degree-of-freedom rotation, and high-stability locking of the car body during the paint baking process, so as to adapt to the painting needs of different positions and angles and improve the quality and efficiency of painting.

[0068] 1. Adjustment and angle guidance mechanism of the base 110: The base 110 on the base 100 achieves rotational support through the rotating lug 111, and adjusts its tilt angle in conjunction with the diagonal brace 112 and the adjusting cylinder 113, effectively improving the controllability of the overall deflection angle of the tooling frame 200 and the adaptability of operation.

[0069] 2. Dual-axis drive enables bidirectional rotation of the tooling frame 200: The multi-axis drive mechanism 300 is equipped with a first drive motor 311 and a second drive motor 312, which respectively control the horizontal rotation of the tooling frame 200 (driven by the auxiliary drive shaft 324) and the longitudinal rotation of the rotating workpiece 330 (driven by the main shaft 323). Through the meshing transmission of the transmission shaft 322 and the gear plate 331, the posture adjustment of the car body workpiece can be achieved without dead angles.

[0070] 3. Damping locking mechanism ensures operational stability: The damping locking component 340 physically dampens and locks the spindle 323 at critical moments, especially during the painting process, to prevent the tilt angle from shifting due to gravity or motor inertia, thereby improving operational stability and safety.

[0071] 4. Automatic control system closed-loop adjustment: The built-in controller adjusts the drive motor action and locking mechanism status in real time based on information such as the flip angle, vehicle position and load status collected by sensors, so as to achieve intelligent control and synchronous action throughout the process.

[0072] 5. Motion trajectory analysis during each flipping process

[0073] (1) When the horizontal rotation is controlled (the auxiliary shaft 324 drives the shaft plate seat 320 to rotate): the main shaft 323 and the transmission shaft 322 need to be controlled by the copper drum to make the second drive motor 312 work through the program control so that the main shaft 323 rotates at a certain angle to eliminate the revolution offset of the transmission shaft 322 following the rotation of the shaft plate seat 320; the tooling frame as a whole rotates horizontally around the fixed shaft seat 210, but will not cause longitudinal flipping.

[0074] (2) During longitudinal tilting control (the main spindle 323 drives the transmission shaft 322, which in turn drives the gear plate):

[0075] The shaft plate seat 320 is stationary, while only the flip plate 330 rotates around the main shaft axis; this allows the car body to flip in the vertical plane, increasing the range of spraying angles; the horizontal rotation mechanism does not operate and does not interfere with each other.

[0076] The advantages of this design are: avoiding a lengthy transmission chain and improving structural compactness; avoiding spatial interference caused by the coincidence of the auxiliary shaft and the main shaft axis; enabling the gear plate to mesh at one end of the work plate, making the control center of gravity closer to the load side, improving load balance and control sensitivity; and using the shaft plate seat to provide central support for the transmission shaft, improving its rotational stability.

[0077] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0078] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A self-rotating paint spraying and baking booth for car bodies, characterized in that, include: The base (100), the tooling frame (200), and the multi-axis drive mechanism (300) are provided with a support platform (110) on the surface of the base (100), the tooling frame (200) is rotatably mounted on the surface of the support platform (110), a fixed shaft seat (210) is fixedly mounted on one end of the surface of the tooling frame (200), and the multi-axis drive mechanism (300) is fixed to the other end of the surface of the tooling frame (200). The multi-axis drive mechanism (300) includes a transmission box (310), a shaft plate seat (320), a tilting work plate (330), and a damping locking assembly (340) arranged inside the transmission box (310). The shaft plate seat (320) is rotatably mounted on the surface of the transmission box (310), the tilting work plate (330) is rotatably mounted on the surface of the bearing bracket (321), and the damping locking assembly (340) is used to contact the bottom surface of the main shaft (323) to increase the rotational damping of the main shaft (323) and to lock the rotation of the main shaft (323). The bottom surface of the transmission box (310) is provided with a first drive motor (311) and a second drive motor (312). An auxiliary drive shaft (324) is rotatably installed on the inner side of the transmission box (310). The two ends of the auxiliary drive shaft (324) are respectively connected to the output end of the first drive motor (311) and the surface of the shaft plate seat (320). A rotatable transmission shaft (322) is arranged through the surface of the shaft disc seat (320). A bearing bracket (321) arranged on the opposing fixed shaft seat (210) is fixedly installed on the top surface of the shaft disc seat (320). A main shaft (323) located inside the transmission box (310) is rotatably installed on the bottom surface of the shaft disc seat (320). The two ends of the main shaft (323) are respectively engaged with the output end of the second drive motor (312) and the bottom end of the transmission shaft (322) for transmission. The flipping worktable (330) and the fixed shaft seat (210) are located on the same axis, and the flipping worktable (330) and the fixed shaft seat (210) are provided with tooling components for positioning and fixing the vehicle body on their opposite sides; A gear disc (331) is fixedly installed on one side of the flipping work disc (330). The top end of the transmission shaft (322) meshes with the surface of the gear disc (331) for transmission. The shaft disc seat (320) and the main shaft (323) are located on the same axis, and the axis of the main shaft (323) is arranged perpendicular to the surface of the transmission box (310). The axis of the flipping work disc (330) is parallel to the surface of the transmission box (310). The top end of the auxiliary shaft (324) is fitted with a synchronous belt on the surface of the shaft disc seat (320) for transmission between the auxiliary shaft (324) and the shaft disc seat (320).

2. The self-rotating paint booth for car bodies according to claim 1, characterized in that, One end of the support platform (110) is rotatably connected to a rotating lug (111) fixed to the surface of the base (100). A diagonal brace (112) is slidably installed on the bottom surface of the support platform (110), and an adjusting cylinder (113) is movably connected to the surface of the diagonal brace (112). The other end of the adjusting cylinder (113) is rotatably installed on the surface of the base (100). One end of the diagonal brace (112) is slidably connected to the surface of the support platform (110), and the other end is rotatably installed on the surface of the base (100). A connecting rod (120) is movably connected between the base (100) and the support platform (110). The connecting rod (120) is a two-section connecting rod structure used to improve the deflection stability of the support platform (110).

3. The self-rotating paint booth for car bodies according to claim 1, characterized in that, The surface of the support (110) is provided with a turntable seat for driving the tooling frame (200) to rotate, and the turntable seat is driven by a worm gear drive assembly.

4. The self-rotating paint booth for car bodies according to claim 1, characterized in that, The damping locking assembly (340) includes a support rod (341), a lever (342), and a drive rod (343) fixed inside the transmission box (310). One end of the support rod (341) is fixed to the bottom surface of the transmission box (310), and the lever (342) is rotatably mounted on the bottom surface of the support rod (341). One end of the lever (342) is movably connected to the output end of the drive rod (343), and the other end is movably connected to a damping shaft disc (344). The damping shaft disc (344) is arranged perpendicular to the surface of the transmission box (310) and opposite to the bottom surface of the main shaft (323).

5. The self-rotating paint booth for car bodies according to claim 4, characterized in that, The top surface of the damping disc (344) and the bottom surface of the main shaft (323) are opposite each other, and the opposite surfaces are rough. The damping disc (344) can move perpendicular to the surface of the transmission box (310).

6. The self-rotating paint booth for car bodies according to claim 1, characterized in that, It also includes an automatic control system, which includes: The controller module is used to receive user input or preset commands; Sensor assemblies are respectively installed on the flip worktable (330), the main shaft (323) and the tooling frame (200) for real-time monitoring of the flip angle, load status and vehicle body position; The drive control circuit is electrically connected to the first drive motor (311) and the second drive motor (312) and is used to precisely control the motor speed and start / stop according to the signal from the controller. The damping control unit is connected to the drive rod (343) and is used to control the opening and closing action of the damping shaft disk (344); The feedback loop is used to feed back the status of each action unit to the controller in real time for closed-loop control, so as to realize the automatic adjustment and locking of the flipping posture.

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