Supporting mechanism for rotary spraying of automobile plastic decorating parts

Abstract

The invention discloses a supporting mechanism for rotary spraying of automobile plastic decorating parts, which comprises a rotating assembly, the top of the rotating assembly is in threaded connection with an internal supporting assembly, an external supporting assembly is installed on the rotating assembly in a surrounding manner, and the surface of the external supporting assembly is sleeved with a plurality of expansion clamping assemblies; the rotating assembly comprises a rotating table, a plurality of first threaded holes are formed in the top of the rotating table, and a transmission assembly is arranged at the bottom of the rotating table. The supporting mechanism aims to solve the technical problems that in the using process of an existing supporting mechanism for rotary spraying of the automobile plastic decorating part, plastic parts in various shapes cannot be stably clamped conveniently, different clamps need to be replaced in order to adapt to the plastic parts in different shapes, and the production cost is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic part spraying processing, and particularly to a supporting mechanism for rotary spraying of automotive plastic decorative parts. Background Art

[0002] The supporting mechanism for rotary spraying of automotive plastic decorative parts is a device used to fix and rotate plastic decorative parts during the spraying process to ensure that the paint can be evenly distributed on the surface of the workpiece. Through fixation, the plastic decorative parts can be prevented from shaking during the spraying process. Through rotation, the paint can be more evenly distributed on the surface of the workpiece. The fixing methods are divided into vacuum adsorption and mechanical clamping. For plastic decorative parts with a flat surface or a small curvature, the vacuum adsorption method can be used for fixation, which can provide a uniform pressure distribution and reduce damage to the surface of the workpiece. For plastic decorative parts with complex shapes, mechanical clamping arms with multi-point fixation are used, and these clamping arms have a fine-tuning function to adapt to workpieces of different sizes and shapes. At the same time, the parts of the clamping arms in contact with the workpiece are covered with a protective layer to prevent scratching the workpiece.

[0003] During the use of the existing supporting mechanism for rotary spraying of automotive plastic decorative parts, it is not convenient to firmly clamp plastic parts of various shapes. In order to adapt to plastic parts of different shapes, different fixtures need to be replaced, which increases the production cost. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that during the use of the existing supporting mechanism for rotary spraying of automotive plastic decorative parts, it is not convenient to firmly clamp plastic parts of various shapes. In order to adapt to plastic parts of different shapes, different fixtures need to be replaced, which increases the production cost.

[0005] To solve the above technical problem, the present invention provides the following technical solution: A supporting mechanism for rotary spraying of automotive plastic decorative parts, including a rotating component, an internal supporting component is threadedly connected to the top of the rotating component, an external supporting component is circumferentially installed on the rotating component, and a plurality of expansion clamping components are sleeved on the surface of the external supporting component; The rotating component includes a rotating table, a plurality of first threaded holes are opened on the top of the rotating table, and a transmission component is provided at the bottom of the rotating table; The internal supporting component includes a supporting seat, a threaded head is fixedly connected to the bottom of the supporting seat, and the threaded head is threadedly connected to the first threaded hole; The external supporting component includes a mounting rod, and a plurality of second threaded holes are opened on the surface of the mounting rod; The expansion clamping component includes a sleeve body, the sleeve body is movably sleeved on the surface of the mounting rod, and a mounting bolt is installed on the sleeve body, and the mounting bolt is threadedly connected to the second threaded hole.

[0006] Preferably, a base is fixedly connected to the bottom of the transmission assembly, universal wheels are installed around the bottom of the rotating table, and the bottoms of the universal wheels are movably connected to the top of the base.

[0007] Preferably, a rotating rod is rotatably connected inside the transmission assembly, the top of the rotating rod is fixedly connected to the bottom of the rotating table, a large gear and a small gear that mesh with each other are rotatably connected inside the transmission assembly, the large gear is fixedly sleeved on the surface of the rotating rod, a reduction motor is fixedly connected to the top of the transmission assembly, and the output shaft of the reduction motor is fixedly connected to the small gear.

[0008] Preferably, an adjusting ring is fixedly connected to the bottom of the rotating table, and third threaded holes are formed around the bottom of the adjusting ring.

[0009] Preferably, a first air cylinder is fixedly connected to the center of the top of the support base, a piston rod of the first air cylinder is fixedly connected to a lifting seat, and a vacuum chuck assembly is fixedly installed on the top of the lifting seat.

[0010] Preferably, a first connecting rod is rotatably connected to the top of the support base, a second connecting rod is rotatably connected to the top of the first connecting rod, and the top of the second connecting rod is rotatably connected to the bottom of the lifting seat.

[0011] Preferably, a motor base is rotatably connected to the bottom of the mounting rod, a telescopic rod is fixedly connected to one side of the motor base, a stepping motor is fixedly installed on the motor base, and the output shaft of the stepping motor is fixedly connected to the bottom of the mounting rod.

[0012] Preferably, a rotating rod is slidably connected to the surface of the telescopic rod, a second air cylinder is fixedly installed inside the rotating rod, the piston rod of the second air cylinder is fixedly connected to the telescopic rod, a T-shaped groove is formed at the top of the rotating rod, the T-shaped groove is sleeved on the surface of the adjusting ring and is movably connected thereto, a fastening bolt is installed at the bottom of the telescopic rod, and the fastening bolt passes through the T-shaped groove and is threadedly connected to the third threaded hole.

[0013] Preferably, an inclined rod is fixedly connected to the surface of the rotating rod, a sliding member is fixedly connected to the bottom of the inclined rod, and the sliding member is movably connected to the surface of the base.

[0014] Preferably, a fixing seat is fixedly connected to the surface of the sleeve body, a threaded sleeve is fixedly connected to one end of the fixing seat, a threaded rod is threadedly connected inside the threaded sleeve, and an expansion chuck is fixedly connected to one end of the threaded rod.

[0015] Advantages of the present invention: 1. The present invention can drive the rotation of automotive plastic decorative parts through a rotating assembly to ensure uniform spraying. Meanwhile, it provides an installation basis for other components. The internal support assembly stably supports the plastic parts on the inner side through vacuum adsorption and vertical lifting. The external support assembly can adjust the angle and height and is arranged around the rotating table to provide an installation platform for the expansion clamping assembly. The expansion clamping assembly can be adjusted and adaptively clamped to improve the installation stability of automotive plastic decorative parts.

[0016] 2. The expansion clamping assemblies of the present invention are distributed on the external support rods surrounding the rotating table and are installed in different second threaded holes to adjust their heights. The external support assembly is installed on different third threaded holes of the adjusting ring through the cooperation of a T-shaped groove and a fastening bolt to adjust the position of the expansion clamping assembly, change the clamping angle, and drive the installation rod to rotate by a stepping motor to change its inclination angle, so that the clamping points can be freely distributed in three-dimensional space, suitable for plastic parts with various profiles such as circular, arc-shaped, and irregular edges. The core of the expansion clamping assembly is a flexible clamping system composed of a conical airbag and a pull belt. The micro air pump injects gas into the inflation chamber, and the gas enters the conical airbag through the air injection channel to make it expand. The pull belt prevents the airbag from getting longer during inflation, making the force concentrated in the lateral expansion direction. The inflated airbag can fit the surface of the plastic part or be inserted into the hole to provide uniform and controllable clamping force. By using flexible clamping, it can avoid damaging the surface of the plastic part and adapt to different curvatures, holes, and edges and other structures at the same time.

[0017] 3. By setting the internal support assembly, the present invention can fix the interior of the automotive plastic decorative parts. The vacuum suction cup assembly in the internal support assembly adsorbs the bottom of the plastic part, and cooperates with the first cylinder to drive the lifting seat to move up and down. At the same time, the lifting stability is maintained through the first connecting rod and the second connecting rod. The external expansion clamping assembly provides support and clamping force from the side to achieve internal and external clamping linkage, anti-slip, anti-overturning, and anti-deformation, suitable for lightweight or thin-walled plastic parts. Brief Description of the Drawings

[0018] Figure 1 is the structural schematic diagram of the present invention Figure 1 。

[0019] Figure 2 is the structural schematic diagram of the present invention Figure 2 。

[0020] Figure 3 is the structural schematic diagram of the rotating assembly of the present invention Figure 1 。

[0021] Figure 4 is the structural schematic diagram of the rotating assembly of the present invention Figure 2 。

[0022] Figure 5Schematic diagram of the internal support component structure of the present invention Figure 1 。

[0023] Figure 6 Schematic diagram of the internal support component structure of the present invention Figure 2 。

[0024] Figure 7 Schematic diagram of the external support component structure of the present invention Figure 1 。

[0025] Figure 8 Schematic diagram of the external support component structure of the present invention Figure 2 。

[0026] Figure 9 Schematic diagram of the expansion clamping component structure of the present invention.

[0027] Figure 10 Cross-sectional view of the expansion clamping component of the present invention.

[0028] Figure 11 Cross-sectional view of the expansion chuck of the present invention.

[0029] In the figure: 100, rotating component; 200, internal support component; 300, external support component; 400, expansion clamping component; 101, rotating table; 102, first threaded hole; 103, universal pulley; 104, base; 105, transmission component; 106, rotating rod; 107, large gear; 108, small gear; 109, reduction motor; 110, adjusting ring; 111, third threaded hole; 201, support seat; 202, first cylinder; 203, lifting seat; 204, vacuum chuck assembly; 205, second connecting rod; 206, first connecting rod; 207, threaded head; 301, mounting rod; 302, second threaded hole; 303, motor seat; 304, stepping motor; 305, telescopic rod; 306, sliding part; 307, inclined rod; 308, T-shaped groove; 309, rotating rod; 310, fastening bolt; 311, second cylinder; 401, sleeve; 402, mounting bolt; 403, fixed seat; 404, threaded sleeve; 405, expansion chuck; 406, threaded rod; 407, partition; 408, inflation chamber; 409, air injection channel; 410, piston; 411, electric exhaust valve; 412, micro air pump; 413, clamping head; 414, annular clamping part; 415, conical airbag; 416, pull belt; 417, through hole; 418, conical clamping part. Detailed implementation manners

[0030] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be given with reference to the accompanying drawings of the specification.

[0031] Refer to Figures 1-11, this embodiment provides a support mechanism for rotary spraying of automotive plastic trim parts, including a rotating assembly 100. An internal support assembly 200 is threadedly connected to the top of the rotating assembly 100. An external support assembly 300 is circumferentially installed on the rotating assembly 100. A number of expansion clamping assemblies 400 are sleeved on the surface of the external support assembly 300.

[0032] Before spraying the automotive plastic trim, ensure in advance that the rotating assembly 100, the internal support assembly 200, the external support assembly 300, and the expansion clamping assembly 400 are all in normal condition. Check whether each component is intact to ensure that they can work together smoothly. Connect the internal support assembly 200 to the top of the rotating assembly 100 by threading, providing an internal support point for the automotive plastic trim part to be sprayed and ensuring its stability during the spraying process. Place the automotive plastic trim part on the internal support assembly 200 to ensure that the position of the trim part is correct and stable. Then, circumferentially install the external support assembly 300 on the rotating assembly 100, and sleeve a number of expansion clamping assemblies 400 on the surface of the external support assembly 300. The function of these assemblies is to further fix and position the trim part to be sprayed. At the same time, apply uniform pressure to the trim part through the expansion clamping assembly 400 to ensure that the trim part does not shift or deform during the spraying process. After preparation, start the rotating assembly 100 to make the entire device start to rotate slowly, which can ensure the uniformity of the coating during spraying and improve the spraying quality. When the spraying operation is completed, stop the rotating assembly 100, control the expansion clamping assembly 400, the external support assembly 300, and the internal support assembly 200 to release the automotive plastic trim part, and finally remove the sprayed automotive plastic trim part.

[0033] The rotating assembly 100 includes a rotating table 101. A number of first threaded holes 102 are opened at the top of the rotating table 101. A transmission assembly 105 is provided at the bottom of the rotating table 101.

[0034] The bottom of the transmission assembly 105 is fixedly connected to a base 104. Universal wheels 103 are circumferentially installed at the bottom of the rotating table 101. The bottom of the universal wheels 103 is movably connected to the top of the base 104.

[0035] A rotating rod 106 is rotatably connected inside the transmission assembly 105. The top of the rotating rod 106 is fixedly connected to the bottom of the rotating table 101. A large gear 107 and a small gear 108 that mesh with each other are rotatably connected inside the transmission assembly 105. The large gear 107 is fixedly sleeved on the surface of the rotating rod 106. A reduction motor 109 is fixedly connected to the top of the transmission assembly 105. The output shaft of the reduction motor 109 is fixedly connected to the small gear 108.

[0036] An adjustment ring 110 is fixedly connected to the bottom of the rotating table 101. A number of third threaded holes 111 are circumferentially opened at the bottom of the adjustment ring 110.

[0037] Before the rotation assembly 100 is used, the internal support assembly 200 is screwed onto the rotary table 101 in advance through the first threaded holes 102 opened at the top of the rotary table 101. The external support assembly 300 is installed through the adjusting ring 110. A plurality of first threaded holes 102 are evenly distributed on the top of the rotary table 101. By installing the internal support assembly 200 in different first threaded holes 102, different positions inside the plastic decoration can be adsorbed and fixed. A third threaded hole 111 is circumferentially opened at the bottom of the adjusting ring 110. By fixing the fastening bolts 310 in different third threaded holes 111, the rotary rod 309 can be fixed at different positions on the adjusting ring 110, so as to change the position of the mounting rod 301 around the rotary table 101 and fix different positions on the surface of the plastic decoration.

[0038] During the rotation of the rotation assembly 100, the reduction motor 109 starts to work first. Its output shaft drives the small gear 108 to rotate. The small gear 108 meshes with the large gear 107, causing the large gear 107 to rotate accordingly. The large gear 107 is fixedly sleeved on the surface of the rotating rod 106. Therefore, the rotating rod 106 also starts to rotate. The top of the rotating rod 106 is fixedly connected to the bottom of the rotary table 101, thereby driving the rotary table 101 and all components thereon to rotate together. The universal pulley 103 is located at the bottom of the rotary table 101 and is movably connected to the base 104, which helps to reduce friction and make the rotation more stable. As the rotary table 101 rotates slowly, the robotic arm and the spraying equipment start to spray the automotive plastic decoration. Due to the uniformity of rotation, the coating distribution can be ensured to be uniform, improving the spraying quality. After spraying is completed.

[0039] The internal support assembly 200 includes a support base 201. A threaded head 207 is fixedly connected to the bottom of the support base 201. The threaded head 207 is threadedly connected to the first threaded hole 102.

[0040] A first cylinder 202 is fixedly connected to the center of the top of the support base 201. The piston rod of the first cylinder 202 is fixedly connected to a lifting seat 203. A vacuum chuck assembly 204 is fixedly installed on the top of the lifting seat 203.

[0041] A first connecting rod 206 is rotatably connected to the top of the support base 201. A second connecting rod 205 is rotatably connected to the top of the first connecting rod 206. The top of the second connecting rod 205 is rotatably connected to the bottom of the lifting seat 203.

[0042] Threadedly connect the threaded head 207 of the internal support component 200 to the first threaded hole 102 at the top of the rotating table 101 to ensure that it is firmly fixed on the rotating table 101. Start the first cylinder 202 to drive the piston rod to move the lifting seat 203 up and down to a suitable position. Adsorb the automotive plastic trim part through the vacuum chuck assembly 204 to ensure that the trim part is firmly fixed on the top of the lifting seat 203. During the movement of the lifting seat 203, drive the first link 206 and the second link 205 to rotate to assist the stable lifting of the lifting seat 203.

[0043] The external support component 300 includes a mounting rod 301, and a plurality of second threaded holes 302 are provided on the surface of the mounting rod 301.

[0044] The bottom of the mounting rod 301 is rotatably connected to a motor base 303. One side of the motor base 303 is fixedly connected to a telescopic rod 305. A stepping motor 304 is fixedly installed on the motor base 303, and the output shaft of the stepping motor 304 is fixedly connected to the bottom of the mounting rod 301.

[0045] A rotating rod 309 is slidably connected to the surface of the telescopic rod 305. A second cylinder 311 is fixedly installed inside the rotating rod 309. The piston rod of the second cylinder 311 is fixedly connected to the telescopic rod 305. A T-shaped groove 308 is provided at the top of the rotating rod 309. The T-shaped groove 308 is sleeved on the surface of the adjusting ring 110 and is movably connected thereto. A fastening bolt 310 is installed at the bottom of the telescopic rod 305. The fastening bolt 310 passes through the T-shaped groove 308 and is threadedly connected to the third threaded hole 111.

[0046] An inclined rod 307 is fixedly connected to the surface of the rotating rod 309. The bottom of the inclined rod 307 is fixedly connected to a sliding member 306. The sliding member 306 is movably connected to the surface of the base 104.

[0047] A rotating rod 309 is slidably connected to the surface of the telescopic rod 305. The T-shaped groove 308 opened at the top of the rotating rod 309 is sleeved on the surface of the adjusting ring 110 and is movably connected thereto. By passing the fastening bolt 310 through the T-shaped groove 308 and threadedly connecting it to the third threaded hole 111, fine adjustment of the position of the rotating rod 309 can be achieved. After the rotating rod 309 is fixed, the mounting rod 301 is installed around the rotating table 101. The stepping motor 304 is fixedly installed through the motor base 303, and its output shaft is fixedly connected to the bottom of the mounting rod 301, which allows the mounting rod 301 to be adjusted in angle when needed. The telescopic rod 305 drives the mounting rod 301 to rotate, which can tilt or flatten it to adjust the working position and angle of the expansion clamping assembly 400. Moreover, the second cylinder 311 can drive the telescopic rod 305 to slide inside the rotating rod 309 to change the distance between the mounting rod 301 and the rotating table 101, and adjust the position of the expansion clamping assembly 400, so that a plurality of expansion clamping assemblies 400 can fix different positions of plastic decorative parts of different shapes. During the rotation of the rotating table 101 driving the adjusting ring 110 and the rotating rod 309, the sliding member 306 at the bottom of the inclined rod 307 is movably connected to the surface of the base 104, providing additional stability and support force.

[0048] The expansion clamping assembly 400 includes a sleeve body 401. The sleeve body 401 is movably sleeved on the surface of the mounting rod 301. An installation bolt 402 is installed on the sleeve body 401, and the installation bolt 402 is threadedly connected to the second threaded hole 302.

[0049] A fixed seat 403 is fixedly connected to the surface of the sleeve body 401. One end of the fixed seat 403 is fixedly connected to a threaded sleeve 404. A threaded rod 406 is threadedly connected inside the threaded sleeve 404. One end of the threaded rod 406 is fixedly connected to an expansion chuck 405.

[0050] A plurality of sleeve bodies 401 are movably sleeved on the surface of the mounting rod 301, and the installation bolt 402 is used to threadedly connect it to the second threaded hole 302 to ensure that the position of each expansion clamping assembly 400 is correct and stable. By installing it in different second threaded holes 302, the clamping height of the expansion clamping assembly 400 can be adjusted. By rotating the threaded rod 406, the threaded rod 406 rotates inside the threaded sleeve 404, and the protruding length and clamping position of the expansion chuck 405 can be adjusted to make it closely contact and clamp the automotive plastic decorative part to be sprayed.

[0051] An inflation chamber 408 is opened inside the fixed seat 403. One end of the threaded rod 406 extends into the inner cavity of the inflation chamber 408 and is fixedly connected to a piston 410. The surface of the piston 410 is slidably connected to the inner wall of the inflation chamber 408. An air injection channel 409 is opened in the piston 410 and the threaded rod 406. One end of the air injection channel 409 is communicated with the inflation chamber 408, and the other end of the air injection channel 409 is communicated with the expansion chuck 405.

[0052] A partition plate 407, a micro air pump 412 and an electric exhaust valve 411 are fixedly connected to the inner cavity of the inflatable cavity 408. The partition plate 407 is located on the opposite side of the micro air pump 412 and the electric exhaust valve 411 to separate them. The intake end of the micro air pump 412 and the exhaust end of the electric exhaust valve 411 penetrate to the bottom of the fixing seat 403. The outlet end of the micro air pump 412 penetrates the partition plate 407 and is located at the intake end of the air injection channel 409.

[0053] The threaded rod 406 includes a clamping head 413. The clamping head 413 is fixedly connected to the threaded rod 406. One end of the clamping head 413 is fixedly connected with a conical airbag 415. A through hole 417 is formed inside the clamping head 413. The through hole 417 is communicated with the inner cavity of the conical airbag 415 and the air injection channel 409.

[0054] A pull belt 416 is arranged around the inner wall of the conical airbag 415. One end of the pull belt 416 is fixedly connected to the conical head part of the inner wall of the conical airbag 415, and the other end of the pull belt 416 is fixedly connected to the clamping head 413. A plurality of pull belts 416 are adapted to the shape of the inner cavity of the conical airbag 415 to traction limit the conical head part of the conical airbag 415, prevent the conical head part from becoming longer during the inflation process of the conical airbag 415, enable the surface of the conical airbag 415 to expand outwards, and increase the pressure at the contact part with the plastic decorative part.

[0055] The surface of the clamping head 413 is provided with a conical clamping part 418 and an annular clamping part 414. By using the conical clamping part 418 and the annular clamping part 414 in cooperation, it contacts different arc parts of the plastic decorative part.

[0056] The internal support component 200 adsorbs the bottom of the plastic decorative part to pull it downward. At this time, the expansion clamping component 400 is located at the bottom of the plastic decorative part, and the expansion chuck 405 contacts the bottom edge of the plastic decorative part to support its bottom and prevent the edge from shaking during the spraying process. When the expansion chuck 405 works, gas is injected into the inflation chamber 408 through the micro air pump 412. The gas enters the conical airbag 415 through the air injection channel 409. As the gas is injected, the conical airbag 415 expands outward. The piston 410 seals the gas in the inner cavity of the inflation chamber 408 to prevent the gas from leaking through the connection between the air injection channel 409 and the threaded sleeve 404. The pulling belt 416 in the conical airbag 415 pulls and limits the conical head to prevent the conical airbag 415 from becoming longer, ensuring that its surface can expand outward and increasing the pressure at the contact part with the plastic decorative part. When it is necessary to release the plastic decorative part, the electric exhaust valve 411 is opened. The electric exhaust valve 411 discharges the high-pressure air inside the inflation chamber 408, the air injection channel 409 and the expansion chuck 405 to the outside, causing the conical airbag 415 to retract and reset. During the retraction process of the conical airbag 415, the pulling belt 416 pulls the conical airbag 415 to assist its rapid reset.

[0057] When the clamping head 413 is installed on the corner of the plastic decorative part, the conical clamping part 418 and the annular clamping part 414 can adapt to the corners with different arcs of the plastic decorative part and provide a better clamping effect, while the conical airbag 415 is inserted into the hole of the plastic decorative part for expansion and fixation.

[0058] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A support mechanism for rotary spraying of automotive plastic decorative parts, comprising a rotary assembly (100), characterized in that: The top of the rotating assembly (100) is threadedly connected with an internal support assembly (200), an external support assembly (300) is circumferentially installed on the rotating assembly (100), and a plurality of expansion clamping assemblies (400) are sleeved on the surface of the external support assembly (300); The rotating assembly (100) includes a rotating table (101), a plurality of first threaded holes (102) are opened at the top of the rotating table (101), and a transmission assembly (105) is arranged at the bottom of the rotating table (101); The internal support assembly (200) includes a support seat (201), a threaded head (207) is fixedly connected to the bottom of the support seat (201), and the threaded head (207) is threadedly connected with the first threaded hole (102); The external support assembly (300) includes a mounting rod (301), and a plurality of second threaded holes (302) are opened on the surface of the mounting rod (301); The expansion clamping assembly (400) includes a sleeve body (401), the sleeve body (401) is movably sleeved on the surface of the mounting rod (301), a mounting bolt (402) is installed on the sleeve body (401), and the mounting bolt (402) is threadedly connected with the second threaded hole (302).

2. The supporting mechanism for rotary spraying of automotive plastic trim parts according to claim 1, characterized in that: The bottom of the transmission assembly (105) is fixedly connected with a base (104), universal wheels (103) are circumferentially installed at the bottom of the rotating table (101), and the bottom of the universal wheels (103) is movably connected with the top of the base (104).

3. The supporting mechanism for rotary spraying of automotive plastic trim parts according to claim 2, characterized in that: A rotating rod (106) is rotatably connected inside the transmission assembly (105), the top of the rotating rod (106) is fixedly connected with the bottom of the rotating table (101), a large gear (107) and a small gear (108) that are meshed with each other are rotatably connected inside the transmission assembly (105), the large gear (107) is fixedly sleeved on the surface of the rotating rod (106), a reduction motor (109) is fixedly connected to the top of the transmission assembly (105), and the output shaft of the reduction motor (109) is fixedly connected with the small gear (108).

4. The supporting mechanism for rotary spraying of automotive plastic trim parts according to claim 3, characterized in that: The bottom of the rotating table (101) is fixedly connected with an adjusting ring (110), and a plurality of third threaded holes (111) are circumferentially opened at the bottom of the adjusting ring (110).

5. The supporting mechanism for rotary spraying of automotive plastic decorative parts according to claim 4, characterized in that: A first cylinder (202) is fixedly connected to the center of the top of the support seat (201), a piston rod of the first cylinder (202) is fixedly connected with a lifting seat (203), and a vacuum chuck assembly (204) is fixedly installed on the top of the lifting seat (203).

6. The supporting mechanism for rotary spraying of automotive plastic decorative parts according to claim 5, characterized in that: A first connecting rod (206) is rotatably connected to the top of the support seat (201), a second connecting rod (205) is rotatably connected to the top of the first connecting rod (206), and the top of the second connecting rod (205) is rotatably connected to the bottom of the lifting seat (203).

7. The support mechanism for rotary spraying of automotive plastic trim parts according to claim 6, characterized in that: The bottom of the mounting rod (301) is rotatably connected to a motor base (303). One side of the motor base (303) is fixedly connected to a telescopic rod (305). A stepper motor (304) is fixedly installed on the motor base (303), and the output shaft of the stepper motor (304) is fixedly connected to the bottom of the mounting rod (301).

8. The supporting mechanism for rotary spraying of automotive plastic decorative parts according to claim 7, characterized in that: A rotating rod (309) is slidably connected to the surface of the telescopic rod (305). A second cylinder (311) is fixedly installed inside the rotating rod (309). The piston rod of the second cylinder (311) is fixedly connected to the telescopic rod (305). A T-shaped groove (308) is formed at the top of the rotating rod (309). The T-shaped groove (308) is sleeved on the surface of the adjusting ring (110) and is movably connected thereto. A fastening bolt (310) is installed at the bottom of the telescopic rod (305). The fastening bolt (310) passes through the T-shaped groove (308) and is threadedly connected to the third threaded hole (111).

9. The supporting mechanism for rotary spraying of automotive plastic trim parts according to claim 8, characterized in that: An inclined rod (307) is fixedly connected to the surface of the rotating rod (309). The bottom of the inclined rod (307) is fixedly connected to a sliding member (306). The sliding member (306) is movably connected to the surface of the base (104).

10. The support mechanism for rotary spraying of automotive plastic trim parts according to claim 9, characterized in that: A fixed seat (403) is fixedly connected to the surface of the sleeve body (401). One end of the fixed seat (403) is fixedly connected to a threaded sleeve (404). A threaded rod (406) is threadedly connected inside the threaded sleeve (404). One end of the threaded rod (406) is fixedly connected to an expansion chuck (405).

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