Vacuum coating machine for automotive upholstery

Abstract

The invention relates to the technical field of vacuum coating machines, in particular to an automotive upholstery vacuum coating machine which comprises a control case, a multi-axis control assembly, a displacement table set and a vacuum tank fixed to the surface of the control case. A plurality of spraying assemblies and electric heating assemblies are fixedly installed on the inner side of the vacuum tank in the circumferential direction, a multi-axis control assembly is fixedly installed on the bottom face of an inner cavity of the vacuum tank, and an operation panel is arranged on the surface of a control machine box. The multi-shaft control assembly comprises a fixed seat, a rotating seat and an output gear shaft, a first control motor and a second control motor are arranged on the fixed seat, and transmission is achieved through meshing of a first gear shaft, a second gear shaft, a bottom gear ring and a rotating gear ring. The electric heating assembly is electrically connected with the operation panel and used for regulating and controlling the temperature of the vacuum environment. According to the device, the composite motion of autorotation and deflection of a workpiece is realized through multi-axis linkage control, so that a coating layer is uniformly deposited on the complex curved-surface interior trim part, the compactness and adhesive force of the coating layer are high, and the device has the advantages of stable structure, high automation degree, excellent coating quality and the like.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vacuum coating machines, in particular to a vacuum coating machine for automotive interior parts. BACKGROUND

[0002] At present, vacuum coating technology is generally used in appearance decoration and functional protection of automotive interior parts to achieve high gloss, wear resistance and oxidation resistance. However, the existing vacuum coating equipment for automotive interior parts still has many deficiencies in structure and control mode, and it is difficult to meet the requirements of high uniformity and high adhesion of complex curved surface interior parts.

[0003] The existing typical vacuum coating machine generally includes a vacuum cavity, a spraying assembly, a heating system and a rotating support, etc. The workpiece is generally driven by a single-axis rotating mechanism to complete the deposition of the coating layer in a vacuum environment. Such equipment has a simple structure and is suitable for coating parts with flat surfaces or regular curved surfaces. However, for workpieces such as automotive interior parts with complex three-dimensional curved surfaces, single-axis rotation cannot uniformly coat the surface of the workpiece, especially in the corner, concave surface and other areas, the thickness of the coating layer is easy to be uneven, resulting in significant differences in appearance and adhesion.

[0004] In addition, in the prior art, the rotation drive of most vacuum coating machines adopts a single motor direct drive structure, the rotation motion is single, and the posture cannot be adjusted according to the shape characteristics of the workpiece. Even if the auxiliary tilting mechanism is added to the improved equipment, the control mode is still mainly mechanical limiting or manual adjustment, the motion precision is low, and automatic coordinated control cannot be realized. In this way, when vacuum coating of complex curved surface interior parts is carried out, the distribution of the coating layer on the surface of the workpiece is still limited by the rotation track, and overall uniform coating cannot be achieved.

[0005] In addition, the heating and spraying structure of the existing vacuum coating system is mostly fixed. The spraying assembly is usually arranged on one side of the vacuum cavity, the coating material is not evenly distributed in the vacuum, which easily causes the coating layer to be too thick in some areas and not enough in other areas; the temperature distribution of the heating assembly is not uniform, which affects the adhesion and density of the coating layer.

[0006] Therefore, the existing problems are researched and improved, and a vacuum coating machine for automotive interior parts is provided to solve the existing problems. SUMMARY

[0007] The present application aims to solve one of the technical problems in the prior art or related art.

[0008] To this end, the technical solution adopted by the present application is as follows: a vacuum coating machine for automotive interior parts, comprising a control cabinet, a multi-axis control assembly, a variable position table group, and a vacuum tank fixed to the surface of the control cabinet.

[0009] The vacuum tank is internally and uniformly provided with a plurality of spraying assemblies and electric heating assemblies distributed in the circumferential direction, and a multi-axis control assembly is fixedly installed on the bottom surface of the inner cavity of the vacuum tank. An operating panel is arranged on the surface of the control cabinet for electric control and parameter adjustment. Through the structure, the entire device can realize the omnibearing rotation and tilting movement of the workpiece in a vacuum environment, so that the sprayed liquid is atomized and deposited on each surface of the automotive interior part, and the plating layer is uniform and firmly attached.

[0010] A vacuum valve is arranged on the surface of the vacuum tank, and a vacuum pump group in communication with the vacuum valve is arranged on the inner side of the control cabinet. The vacuum pump group can pump air out of the vacuum tank before plating to maintain the internal air pressure at a low and stable state. By adjusting the opening and closing of the vacuum valve, a constant vacuum degree can be maintained during the plating process, impurities can be prevented from entering, the purity and adhesion of the plating layer can be improved, and the continuity and controllability of the plating process can be ensured.

[0011] The spraying assembly is used to communicate with the plating liquid pumping pipeline, and a plurality of aeration micro-holes are densely distributed on the surface thereof. When the plating liquid is pumped to the spraying assembly through the pipeline, it is uniformly atomized and sprayed through the aeration micro-holes, so that the plating liquid forms a diffused and uniform mist in the vacuum environment, thereby ensuring the uniformity of the deposition of the plating layer on the surface of the workpiece, avoiding local accumulation or empty plating, and improving the plating density and surface finish. The multi-axis control assembly includes a fixed seat, a rotating seat, and an output gear shaft rotatably installed on the surface of the rotating seat. The first control motor and the second control motor are fixedly installed on the surface of the fixed seat and are respectively in meshing transmission with the bottom gear ring and the rotating gear ring through the first gear shaft and the second gear shaft.

[0012] Specifically, the first control motor drives the bottom gear ring to rotate the entire rotating seat, realizing the self-rotation of the workpiece; the second control motor is in meshing transmission with the output gear shaft through the rotating gear ring, so that the output gear shaft rotates independently, realizing the posture adjustment and fine deflection of the workpiece. Independent control of the two groups of drives and mutual cooperation enable the workpiece to realize the combined motion of self-rotation and deflection during the plating process, ensuring that different angle surfaces are uniformly plated.

[0013] In a preferred example, the rotating seat is rotatably installed on the surface of the fixed seat and coaxially arranged with the vacuum tank, the rotating gear ring and the bottom gear ring are respectively located on the upper and lower surfaces of the fixed seat, and the surfaces of the two rings are both provided with a plurality of rolling balls in sliding abutment with the surface of the fixed seat.

[0014] Specifically, this structure reduces the rotating friction resistance, ensures the stable and reliable rotation of the rotating seat, improves the motion accuracy and durability, and avoids the fluctuation of the plating thickness caused by mechanical vibration.

[0015] In a preferred example, the variable position platform group includes a positioning guide seat, a bearing seat, and a worm shaft rotatably installed on the surface of the positioning guide seat. The bottom surface of the bearing seat is fixedly provided with a worm gear rack in meshing transmission with the worm shaft.

[0016] Specifically, when the worm shaft rotates, it drives the worm rack to produce a deflection movement, and then drives the support seat to tilt, realizing the change of the workpiece angle. Through this structure, the workpiece can be adjusted in posture while rotating, making the coating angle more flexible and enhancing the coverage integrity of the coating.

[0017] In a preferred example, the arc guide block is fixedly installed on the positioning guide seat surface, and the slide guide is fixedly installed on the bottom surface of the support seat and in sliding contact with the surface of the arc guide block.

[0018] Specifically, the guide structure provides arc trajectory constraint during the deflection of the support seat, making the deflection action smooth and preventing mechanical stress accumulation caused by sudden angle changes, ensuring that the interior trim part maintains a stable posture during movement.

[0019] In a preferred example, a bevel gear is fixedly installed at one end of the worm shaft, and the output gear shaft penetrates the surface of the rotating seat and is in meshing transmission with the bevel gear.

[0020] Specifically, the output gear shaft, driven by the second control motor, transmits the rotary torque to the worm shaft through the bevel gear, realizing power transmission of the deflection transmission chain. This structure has the characteristics of stable transmission and high meshing precision, and can maintain consistency and synchronization during multi-axis linkage.

[0021] In a preferred example, the first control motor and the second control motor are both servo motor structures, and their input ends are electrically connected with a servo control system. The servo system automatically adjusts the rotation of the rotating seat and the deflection angle of the support seat according to a three-dimensional model of the automotive interior trim part.

[0022] Specifically, through servo feedback signals, closed-loop control of the motion trajectory can be realized, making the rotation and deflection coordinated, thereby ensuring uniform coating layer thickness and uniform morphology, achieving intelligent control and high-precision coating effect.

[0023] In a preferred example, the upper surface of the support seat is provided with a suction table, and the surface of the suction table is provided with a plurality of suction holes communicating with vacuum pipelines.

[0024] Specifically, when the workpiece is installed, the suction holes form a negative pressure suction force through the vacuum pipelines, which can stably fix the automotive interior trim part during rotation and deflection, prevent deviation, and improve coating precision and safety.

[0025] In a preferred example, the electric heating assembly is electrically connected with a control machine box surface operation panel through a temperature control circuit.

[0026] Specifically, the operation panel can monitor and adjust the heating power and cavity temperature in real time, thereby making the temperature distribution uniform during coating, enhancing the bonding force between the coating layer and the substrate, and improving the smoothness of the coating layer through precise temperature control.

[0027] The beneficial effects achieved by the present application are: 1. In this invention, by arranging the spraying assembly and the electric heating assembly along the circumferential direction inside the vacuum tank, and setting up a linkage structure between the multi-axis control assembly and the displacement stage assembly, the workpiece can achieve a composite motion of rotation and deflection in the vacuum environment, thereby enabling the atomized vapor of the coating liquid to be uniformly deposited on each curved surface of the workpiece, which significantly improves the density and uniformity of the coating and effectively avoids the uneven coating thickness caused by the traditional fixed coating structure.

[0028] 2. In this invention, both the first and second control motors adopt servo motor structures and are electrically connected to the servo control system. This enables automatic control of the rotation and deflection trajectories of the rotary table, output gear shaft, and support base based on the three-dimensional shape of the automotive interior parts, forming a multi-axis synchronous and coordinated automated control system. This design not only improves the coating accuracy and consistency but also reduces manual adjustments, enhancing the equipment's intelligence level and work efficiency.

[0029] 3. In this invention, the vacuum tank is connected to the vacuum pump group via a vacuum valve to form a stable low-pressure space. Combined with the temperature control system of the electric heating component and the atomizing spray structure of the plating component, the air pressure, temperature, and material distribution in the coating environment are all under control, thereby improving the adhesion and surface finish of the coating layer. Simultaneously, the overall structure is compact, easy to assemble and maintain, and suitable for efficient vacuum coating processing of various automotive interior parts, demonstrating significant industrial application value. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present invention; Figure 2 This is a schematic diagram of the inner structure of a vacuum tank according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the installation structure of the spraying assembly and the electric heating assembly according to an embodiment of the present invention; Figure 4 This is a schematic diagram of a multi-axis control component structure according to an embodiment of the present invention; Figure 5 This is an exploded view of a multi-axis control component according to an embodiment of the present invention; Figure 6 This is an exploded view of the displacement stage assembly according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the positioning guide seat and its surface worm shaft structure according to an embodiment of the present invention.

[0031] Figure label: 100. Control box; 101. Operation panel; 110. Vacuum tank; 120. Spray plating assembly; 130. Electric heating assembly; 200, multi-axis control assembly; 210, fixed seat; 220, rotating seat; 230, output gear shaft; 211, first control motor; 212, second control motor; 213, first gear shaft; 214, second gear shaft; 221, bottom gear ring; 222, rotating gear ring; 300, variable position platform set; 310, positioning guide seat; 320, bearing platform seat; 330, worm shaft; 340, worm gear; 311, arc guide block; 321, sliding guide; 331, bevel gear. DETAILED DESCRIPTION

[0032] To make the objectives, technical solutions and advantages of the present application clearer, further detailed description will be made to the present application with reference to the specific embodiments and the accompanying drawings. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0033] It is understood that the above description is only exemplary and is not intended to limit the scope of the present application.

[0034] Some embodiments of the present application provide a vacuum coating machine for automotive interior parts.

[0035] In combination with Figures 1-7 As shown in the drawings, the present application provides a vacuum coating machine for automotive interior parts, which comprises a control cabinet 100, a multi-axis control assembly 200 and a variable position platform set 300, and a vacuum tank 110 fixedly installed on the surface of the control cabinet 100.

[0036] The inner side of the vacuum tank 110 is fixedly installed with a plurality of spraying assemblies 120 and electric heating assemblies 130 distributed in the circumferential direction. The multi-axis control assembly 200 is fixedly installed on the bottom surface of the inner cavity of the vacuum tank 110. The surface of the control cabinet 100 is provided with an operation panel 101 for unified control of the electrical system, servo system, vacuum system and temperature control system of the whole machine.

[0037] The vacuum tank 110 and the control cabinet 100 together constitute a sealed working space and a control center for vacuum coating, and the overall structure is compact, stable and suitable for high-precision coating treatment of automotive interior parts in a vacuum environment.

[0038] In this embodiment, the multi-axis control assembly 200 comprises a fixed seat 210, a rotating seat 220 and an output gear shaft 230 rotatably installed on the surface of the rotating seat 220.

[0039] The fixed seat 210 is a supporting base fixedly installed on the inner wall of the bottom of the vacuum tank 110. The surface of the fixed seat 210 is fixedly installed with a first control motor 211 and a second control motor 212. Both motors are servo motor structures with precise angle and speed control performance.

[0040] The rotating seat 220 is rotatably installed on the surface of the fixed seat 210 through a central rotating shaft structure, so that it can perform stable rotation motion at the bottom of the vacuum tank 110. The surface of the fixed seat 210 is rotatably installed with a first gear shaft 213 and a second gear shaft 214, which are used to respectively transmit the output power of the first control motor 211 and the second control motor 212.

[0041] The surface of the rotating seat 220 is fixedly sleeved with a bottom gear ring 221, which is engaged with the first gear shaft 213 below. The upper surface of the rotating seat 220 is provided with a rotating gear ring 222, which is engaged with the second gear shaft 214.

[0042] The first gear shaft 213 is used to be engaged with the output end of the first control motor 211 and the surface of the bottom gear ring 221 for transmission, so that the rotating seat 220 is driven to rotate by the first control motor 211.

[0043] The surface of the second gear shaft 214 is respectively engaged with the output end of the second control motor 212 and the rotating gear ring 222 on the surface of the rotating seat 220 for transmission. The inner side of the rotating gear ring 222 is engaged with the surface of the output gear shaft 230 for transmission. The output gear shaft 230 is driven to rotate independently on the surface of the rotating seat 220 by the second control motor 212.

[0044] Under the cooperation of the above structure, the first control motor 211 realizes the rotation of the entire rotating seat 220, and the second control motor 212 realizes the local rotation of the output gear shaft 230. The combined action of the two can drive the upper displacement platform group 300 to produce combined rotation and deflection, forming multi-axis control capability.

[0045] In this embodiment, the displacement platform group 300 includes a positioning guide seat 310, a bearing seat 320, and a worm shaft 330 rotatably installed on the surface of the positioning guide seat 310.

[0046] The bottom surface of the bearing seat 320 is fixedly installed with a worm gear rack 340 engaged with the surface of the worm shaft 330 for transmission. The worm shaft 330 and the worm gear rack 340 form a vertical engagement relationship. When the worm shaft 330 rotates, the bearing seat 320 can be driven to perform angular deflection along the arc guide rail direction.

[0047] The surface of the positioning guide seat 310 is fixedly installed with an arc guide block 311, and the bottom surface of the bearing seat 320 is fixedly installed with a sliding guide 321. The sliding guide 321 is in sliding contact with the surface of the arc guide block 311, which is used to guide the bearing seat 320 to smoothly deflect under the driving of the worm shaft 330.

[0048] One end of the worm shaft 330 is fixedly installed with a bevel gear 331, which is used to be engaged with the end of the output gear shaft 230 for transmission. The bearing seat 320 is deflected to realize the adjustment of the workpiece posture by driving the worm shaft 330 to rotate through the output gear shaft 230.

[0049] In actual work, the workbench surface of the variable position table group 300 for carrying the automotive interior part is an adsorption table structure, and the upper surface of the support base 320 is provided with an adsorption table for fixing the automotive interior part. The surface of the adsorption table is provided with a plurality of adsorption holes communicating with the vacuum pipeline, and when the vacuum pump is working, a negative pressure adsorption force is formed to stabilize the position of the workpiece and prevent the workpiece from shifting or shaking during multi-axis movement.

[0050] In this embodiment, the surface of the vacuum tank 110 is provided with a vacuum valve, and the inside of the control cabinet 100 is provided with a vacuum pump group communicating with the vacuum valve.

[0051] Before operation, the vacuum tank 110 is pumped by the vacuum pump group, and the vacuum valve is used to control the maintenance and exhaust of the vacuum degree. This structure can ensure that the inside of the vacuum tank 110 maintains a stable vacuum environment during the coating operation, thereby preventing impurities from entering and improving the purity and adhesion of the coating layer.

[0052] In this embodiment, the spraying assemblies 120 are uniformly distributed inside the vacuum tank 110 and arranged in the circumferential direction. Each spraying assembly 120 communicates with the coating liquid pumping pipeline and is provided with a plurality of densely distributed aeration micro-holes on the surface.

[0053] During the coating operation, the coating liquid enters the spraying assembly 120 through the pumping pipeline and is atomized and sprayed through the aeration micro-holes to form fine mist airflow, which is uniformly distributed in the internal space of the vacuum tank 110, achieving uniform deposition of the coating liquid.

[0054] In this embodiment, the electric heating assembly 130 is fixedly installed inside the vacuum tank 110 and is staggered with the spraying assemblies 120. The electric heating assembly 130 is connected to the temperature control circuit inside the control cabinet 100 through wires and is controlled by the operation panel 101.

[0055] During the coating process, the electric heating assembly 130 heats the environment inside the vacuum tank 110 according to the set temperature to improve the density and adhesion of the coating layer. The operation panel 101 can display and adjust the temperature in real time to ensure the stability and consistency of the temperature distribution.

[0056] In this embodiment, one end of the output gear shaft 230 penetrates the surface of the rotating seat 220, and the other end is engaged with the bevel gear 331 at the end of the worm shaft 330 in the variable position table group 300 for transmission. The outer periphery of the output gear shaft 230 is engaged with the inside of the rotating gear ring 222 for transmission.

[0057] When the second control motor 212 is started, the rotating gear ring 222 is driven to rotate through the second gear shaft 214, thereby driving the output gear shaft 230 to rotate. The output gear shaft 230 drives the worm shaft 330 to rotate through the bevel gear 331, and the worm shaft 330 drives the worm gear 340 to deflect, achieving the tilting movement of the support base 320.

[0058] Meanwhile, the first control motor 211 drives the bottom gear ring 221 and the rotating seat 220 to rotate through the first pinion shaft 213, forming overall rotation. Through the above-mentioned double-motor hierarchical control, the composite action of rotation and deflection of the support seat 320 is realized, and the workpiece can be plated at full angle in the vacuum tank 110.

[0059] In this embodiment, the first control motor 211 and the second control motor 212 are both servo motors, and the input ends thereof are electrically connected to a servo control system. The servo control system is arranged in the control cabinet 100, and is used for automatically controlling the rotation of the displacement table group 300 and the deflection angle of the support seat 320 according to the three-dimensional curved surface shape of the automotive interior part, the film coating process path and the speed curve.

[0060] In work, the servo control system accurately calculates the rotation speed and angle of each motor according to the preset program, and coordinates multi-axis linkage, so that each surface of the automotive interior part can uniformly receive film coating spraying, and local unevenness is avoided, and the uniformity and adhesion of the coating are improved.

[0061] In this embodiment, the control cabinet 100 is provided with an operation panel 101, and the operation panel includes a vacuum control area, a temperature control area and a motion control area, and the vacuum pump group, the electric heating assembly 130, the spraying assembly 120 and the servo motor system can be centrally operated and monitored.

[0062] The operator can set the film coating process parameters such as vacuum degree, temperature, spraying flow and motion trajectory through the operation panel 101. The electric heating assembly 130 is electrically connected with the operation panel 101, and realizes real-time feedback and closed-loop adjustment of temperature through a temperature control module, so as to ensure that the temperature distribution in the vacuum tank 110 is stable.

[0063] Working principle and use process of the present application: The whole machine is composed of a control cabinet, a vacuum tank, a multi-axis control assembly and a displacement table group, and the actions of each part are coordinated through an electric control system, so that uniform film coating of the automotive interior part in a vacuum environment is realized.

[0064] 1. Vacuum system establishment: the vacuum pump group in the control cabinet 100 is in communication with the vacuum valve on the vacuum tank 110, and when started, the vacuum tank is pumped to form a stable low-pressure vacuum environment, providing the required atmosphere condition for the film coating process.

[0065] 2. Heating and spraying process: the electric heating assembly 130 arranged in a ring shape in the vacuum tank preheats the workpiece surface or the film coating material; the spraying assembly 120 is connected with the film coating liquid pipeline, and the atomized film coating liquid is sprayed out through the aeration micropores on the surface thereof, so that the evaporated material is uniformly distributed on the workpiece surface.

[0066] 3. Workpiece posture control: the multi-axis control assembly 200 is located at the bottom of the vacuum tank, and is used for driving the displacement table group 300 carrying the workpiece to move in multiple degrees of freedom: The first control motor 211 drives the first pinion shaft 213 to drive the bottom gear ring 221 and the rotating seat 220 to rotate, thereby realizing overall rotation. The second control motor 212 drives the rotating gear ring 222 and the output gear shaft 230 through the second pinion shaft 214, so that the output gear shaft realizes independent rotation. The output gear shaft is meshed with the worm shaft 330 and the bevel gear 331, thereby driving the support seat 320 to produce a deflection motion.

[0067] Through the above-mentioned dual-motor and multi-gear ring transmission structure, the workpiece can realize self-rotation and tilting in the vacuum tank at the same time, so that the coating vapor can cover the surface of the workpiece in all directions.

[0068] 4. Displacement and guide mechanism: The displacement table group 300 is slidably connected with the arc guide block 311 and the sliding guide 321, so that the support seat 320 tilts stably and the angle is controllable. The vacuum suction holes on the adsorption table fix the position of the workpiece to prevent deviation during movement.

[0069] 5. Control and feedback: The servo control system automatically adjusts the rotation speed and angle of the two groups of motors according to the three-dimensional shape of the interior trim part, thereby realizing precise trajectory control. The temperature control circuit is connected with the operation panel 101, thereby adjusting the heating power in real time to ensure that the coating thickness and adhesion are consistent.

[0070] 6. Summary of core principles: The device realizes metal or coating deposition through atomization spraying and electric heating in a vacuum environment, and controls the workpiece to be plated in a multi-angle rotating and tilting state through a multi-axis linkage driving mechanism, so that the coating is uniformly distributed and firmly combined, and is suitable for vacuum coating processing of complex curved surface automobile interior trim parts.

[0071] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "a specific embodiment" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0072] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A vacuum coating machine for automotive interior parts, characterized in that, It includes a control housing (100), a multi-axis control assembly (200) and a displacement table assembly (300), as well as a vacuum tank (110) fixed to the surface of the control housing (100). The vacuum tank (110) is fixedly installed with several spraying components (120) and electric heating components (130) distributed along the circumferential direction. The multi-axis control component (200) is fixedly installed on the bottom surface of the inner cavity of the vacuum tank (110). The surface of the control box (100) is provided with an operation panel (101). The displacement stage assembly (300) includes a positioning guide seat (310), a support seat (320), and a worm shaft (330) rotatably mounted on the surface of the positioning guide seat (310). A worm rack (340) that meshes with the surface of the worm shaft (330) is fixedly mounted on the bottom surface of the support seat (320). An arc guide block (311) and a sliding guide (321) are fixedly mounted on the surface of the positioning guide seat (310) and the bottom surface of the support seat (320), respectively. The sliding guide (321) slides in contact with the surface of the arc guide block (311) to guide the deflection of the support seat (320).

2. The vacuum coating machine for automotive interior parts according to claim 1, characterized in that, The vacuum tank (110) is provided with a vacuum valve on its surface, and the control box (100) is provided with a vacuum pump group inside the control box (100) that is connected to the vacuum valve on the surface of the vacuum tank (110).

3. The vacuum coating machine for automotive interior parts according to claim 1, characterized in that, The spraying assembly (120) is used to connect the coating liquid pumping pipeline, and the surface of the spraying assembly (120) is provided with a number of densely distributed aeration micropores.

4. The vacuum coating machine for automotive interior parts according to claim 1, characterized in that, The multi-axis control assembly (200) includes a fixed base (210), a rotary base (220), and an output gear shaft (230) rotatably mounted on the surface of the rotary base (220). A first control motor (211) and a second control motor (212) are fixedly mounted on the surface of the fixed base (210). The rotary base (220) is rotatably mounted on the surface of the fixed base (210). A first gear shaft (213) and a second gear shaft (214) are rotatably mounted on the surface of the fixed base (210).

5. The vacuum coating machine for automotive interior parts according to claim 4, characterized in that, The surface of the rotary seat (220) is fixedly fitted with a bottom toothed ring (221), and the first toothed shaft (213) is used to mesh with the output end of the first control motor (211) and the surface of the bottom toothed ring (221) for transmission. The surface of the second toothed shaft (214) meshes with the output end of the second control motor (212) and the rotating toothed ring (222) on the surface of the rotary seat (220) for transmission. The inner side of the rotating toothed ring (222) meshes with the surface of the output toothed shaft (230) for transmission.

6. The vacuum coating machine for automotive interior parts according to claim 4, characterized in that, The rotating base (220) is rotatably mounted on the surface of the fixed base (210) and coaxially arranged with the vacuum tank (110). The fixed base (210) is fixedly mounted on the surface of the rotating base (220). The rotating toothed ring (222) and the bottom toothed ring (221) on the surface of the rotating base (220) are respectively located on the upper and lower surfaces of the fixed base (210). The surfaces of the rotating toothed ring (222) and the bottom toothed ring (221) are provided with a number of balls that slide against the surface of the fixed base (210).

7. The vacuum coating machine for automotive interior parts according to claim 6, characterized in that, A bevel gear (331) is fixedly installed at one end of the worm shaft (330), and one end of the output gear shaft (230) passes through the surface of the rotary seat (220) and meshes with the bevel gear (331) at the end of the worm shaft (330) for transmission. The outer circumference of the output gear shaft (230) meshes with the inner side of the rotating gear ring (222) for transmission.

8. The vacuum coating machine for automotive interior parts according to claim 6, characterized in that, Both the first control motor (211) and the second control motor (212) are servo motors, and their input terminals are electrically connected to a servo control system.

9. The vacuum coating machine for automotive interior parts according to claim 1, characterized in that, The upper surface of the support base (320) is provided with an adsorption platform for fixing automotive interior parts, and the surface of the adsorption platform is provided with multiple adsorption holes connected to vacuum pipelines.

10. The vacuum coating machine for automotive interior parts according to claim 1, characterized in that, The control box (100) has an operation panel (101) on its surface, and the electric heating component (130) is electrically connected to the operation panel (101) through a temperature control circuit.

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