Post-processing equipment for automobile interior plastic part processing

Abstract

The invention belongs to the field of automotive trim plastic part finishing, and particularly relates to automotive trim plastic part machining post-processing equipment which comprises a multi-axis manipulator and a polishing mechanism installed on the multi-axis manipulator, the polishing mechanism comprises a rotating assembly connected with the multi-axis manipulator, and a fixing base is connected to the rotating assembly; a plurality of polishing assemblies are arranged on the peripheral side of the fixing base. A heat dissipation cavity is formed in the fixing base, a plurality of rotating grooves are evenly formed in the circumferential side of the fixing base in the circumferential direction of the fixing base, the rotating grooves communicate with the heat dissipation cavity, and a driving rotating shaft is jointly and rotationally arranged between the upper inner wall and the lower inner wall of the heat dissipation cavity. Through alternate work of multiple polishing heads, dynamic contact point design, an efficient heat dissipation system and an optimized driving and friction reduction structure, the problems of local overheating and heat accumulation in the interior plastic part polishing process are effectively solved, the polishing quality and the product yield are remarkably improved, and meanwhile the stability and adaptability of equipment are enhanced.

Description

Technical Field

[0001] The present invention belongs to the field of finishing of automotive interior plastic parts, and particularly relates to a post-processing device for processing automotive interior plastic parts. Background Art

[0002] In the field of modern automotive manufacturing, interior plastic parts are widely used in components such as instrument panels, door trim parts, and air-conditioning vents due to their advantages of light weight, low cost, and strong shape plasticity. With the continuous improvement of consumers' requirements for the aesthetics, comfort, and safety of automotive interiors, the surface quality and assembly accuracy of interior plastic parts have become one of the important indicators for measuring the quality of automobiles. Therefore, the finishing process after plastic part processing is a key link to ensure product quality.

[0003] The treatment processes of automotive interior plastic parts mainly include deburring, surface polishing, size correction, etc. When polishing the holes on the surface of interior plastic parts, it is usually through a multi-axis manipulator cooperating with a polishing head to penetrate into the holes for polishing. The existing polishing heads of interior plastic part polishing equipment have the following defects: 1) During the polishing process, a large amount of heat is generated by the friction between the polishing head and the inner wall surface of the holes of the interior plastic parts. This part of the heat will gradually increase the temperature of the polishing wheel itself over time. When continuously contacting and polishing the inner wall surface of the holes of the interior plastic parts subsequently, it will accelerate the temperature rise of the surface of the interior plastic parts, which may cause local overheating and deformation of the interior plastic parts, and even defects such as charring and local discoloration of the interior plastic parts.

[0004] 2) The existing polishing heads have a certain thickness, and the depth of the holes of interior plastic parts is usually relatively shallow. When the polishing head is inserted into the holes of the interior plastic parts and contacts the inner wall for polishing, the contact points between the polishing head and the inner wall of the holes of the interior plastic parts are fixed, making it easier for the heat to accumulate at the contact point positions of the polishing head, resulting in a rapid temperature rise and further increasing the risk of quality problems in the polishing of interior plastic parts.

[0005] Therefore, in order to solve the problem of excessive temperature of automotive interior plastic parts during the polishing process, the present invention provides a post-processing device for processing automotive interior plastic parts. Summary of the Invention

[0006] In order to solve the above problems, the present invention provides a post-processing device for processing automotive interior plastic parts to solve the problems mentioned in the above background art.

[0007] To achieve the above object, the embodiments of the present application provide the following technical solutions: The present invention provides a post-processing device for interior plastic parts, including a multi-axis manipulator and a polishing mechanism installed on the multi-axis manipulator. The polishing mechanism includes a rotating component connected to the multi-axis manipulator, and a fixed seat is connected to the rotating component. A plurality of polishing components are arranged on the circumferential side of the fixed seat. A heat dissipation cavity is opened inside the fixed seat, and a plurality of rotating grooves are uniformly opened on the circumferential side of the fixed seat along its circumferential direction. The rotating grooves are communicated with the heat dissipation cavity. A driving rotating shaft is rotatably arranged between the upper and lower inner walls of the heat dissipation cavity. The polishing component includes a driven rotating shaft rotatably arranged in the rotating groove, and a polishing head is slidably sleeved on the driven rotating shaft and can slide up and down along its length direction. A temperature reduction component is arranged on the driving rotating shaft, and a first driving component for driving the polishing head to rotate is jointly arranged between the driving rotating shaft and a plurality of driven rotating shafts. A second driving component for driving the polishing head to slide up and down reciprocally is jointly arranged between the fixed seat and the driving rotating shaft. The rotating component and the first driving component cooperate to drive the plurality of polishing heads to rotate intermittently and revolve around the driving rotating shaft at the same time. The revolution of the plurality of polishing heads can cyclically switch different polishing heads to polish the inner wall of the hole of the interior plastic part. The rotation of the polishing head enables the temperature reduction component to cool the part of the polishing head inside the heat dissipation cavity.

[0008] According to an advantageous embodiment, the rotating component includes a connecting sleeve connected to the multi-axis manipulator. A driving motor I is fixedly arranged inside the connecting sleeve. The output shaft of the driving motor I movably penetrates through the end face of the connecting sleeve and is fixedly connected to the fixed seat. The driving motor I drives the fixed seat to rotate intermittently and regularly.

[0009] According to an advantageous embodiment, a driving motor II is fixedly arranged inside one end of the fixed seat close to the rotating component. The output shaft of the driving motor II movably extends into the heat dissipation cavity and is fixedly connected to the upper end of the driving rotating shaft.

[0010] According to an advantageous embodiment, the polishing head is composed of an I-shaped disc and a polishing wheel fixedly sleeved on the surface of the I-shaped disc. The middle section of the driven rotating shaft is set to be rectangular, and a plurality of groups of ball bearings I distributed up and down are rotatably arranged on the four side surfaces of the rectangular section of the driven rotating shaft. A rectangular sliding hole that completely penetrates and is rectangular is opened between the upper and lower surfaces of the I-shaped disc. The ball bearings I are in rolling connection with the inner wall of the corresponding side of the rectangular sliding hole.

[0011] According to an advantageous embodiment, the temperature reduction component is set as a fan blade group coaxially and fixedly sleeved on the lower end surface of the driving rotating shaft.

[0012] According to an advantageous embodiment, the first driving component includes a first driving gear coaxially and fixedly sleeved on the surface of the driving rotating shaft. A first driven gear is coaxially and fixedly sleeved on the upper end of the driven rotating shaft. The first driving gear and the first driven gear are meshed with each other.

[0013] According to an advantageous embodiment, the second driving assembly includes a rising driving part disposed in the rotating groove and used for driving the polishing head to rise. An inner edge is integrally and fixedly arranged on the upper inner wall of the heat dissipation cavity. A descending driving part for driving the polishing head to move downward is arranged on the inner edge. The descending driving parts correspond to the above-mentioned driving parts one by one, and the rising driving part and the driving shaft are driven by a rotating driving part.

[0014] According to an advantageous embodiment, the rising driving part includes a rotating sleeve rotatably arranged on the lower inner wall of the rotating groove and coaxial with the corresponding driven rotating shaft. A driving seat is fixedly arranged at the upper end of the rotating sleeve. The upper end surface of the driving seat is provided with a spiral lifting slope and is circumferentially closed. A support column is fixedly arranged at the lower edge of the I-shaped plate. A second ball is rotatably arranged at the lower end of the support column. The second ball is in rolling connection with the spiral lifting slope on the upper side of the corresponding driving seat.

[0015] According to an advantageous embodiment, the descending driving part includes a connecting ring plate movably sleeved on the upper surface of the driven rotating shaft and located above the inner edge. A plurality of guide rods are fixedly arranged on the lower side of the connecting ring plate along its circumferential direction. The guide rods are slidably inserted into the inner edge. A compression spring is fixedly arranged on the upper surface of the guide rods and the upper side of the inner edge together. The compression spring is sleeved on the surface of the guide rods. The lower ends of adjacent guide rods are fixedly connected together to form a downward pressing ring plate. A plurality of evenly arranged third balls are rotatably arranged on the lower side of the downward pressing ring plate. The third balls are in rolling connection with the upper surface of the corresponding I-shaped plate.

[0016] According to an advantageous embodiment, the rotating driving part includes a second driving gear coaxially and fixedly sleeved on the surface of the driving shaft. A second driven gear is coaxially and fixedly sleeved on the rotating sleeve. The second driving gear is meshed with the second driven gear.

[0017] Compared with the prior art, the post-treatment equipment for processing automotive interior plastic parts provided by the embodiment of the present invention has the following beneficial effects: 1) The present invention drives the fixed seat to rotate intermittently through the first driving motor, switches different polishing heads to work, ensures that each polishing head has enough time to dissipate heat, prevents the automotive interior plastic parts from deforming, burning or discoloring due to local overheating; at the same time, the polishing head reciprocates up and down during work, making the contact points change dynamically, and the heat distribution is more uniform, avoiding the rapid rise of temperature caused by heat accumulation, and reducing the risk of overheating during polishing of automotive interior plastic parts.

[0018] 2) A heat dissipation cavity and a fan blade group are arranged in the fixed seat of the present invention to dissipate heat from the working and idle polishing heads at the same time, improve the heat dissipation efficiency, and ensure the polishing quality. Description of the Drawings

[0019] Figure 1 It is an external three-dimensional structure diagram of the present invention.

[0020] Figure 2This is the external three-dimensional structure diagram of the polishing mechanism in the present invention.

[0021] Figure 3 This is the external three-dimensional structure diagram of the fixed seat in the present invention.

[0022] Figure 4 This is the partial sectional three-dimensional structure diagram of the fixed seat in the present invention.

[0023] Figure 5 This is the external three-dimensional structure diagram of the polishing assembly in the present invention.

[0024] Figure 6 This is the first perspective sectional plane structure diagram of the fixed seat in the present invention.

[0025] Figure 7 This is the second perspective sectional plane structure diagram of the fixed seat in the present invention.

[0026] Reference numerals in the figure: 1, multi-axis manipulator; 2, polishing mechanism; 21, rotating assembly; 22, fixed seat; 221, heat dissipation cavity; 23, polishing assembly; 231, driven rotating shaft; 232, polishing head; 2321, I-shaped plate; 2322, polishing wheel; 24, driving rotating shaft; 25, temperature reduction assembly; 26, driving assembly one; 261, driving gear one; 262, driven gear one; 27, driving assembly two; 271, rising driving part; 2711, rotating sleeve; 2712, driving seat; 2713, support column; 272, descending driving part; 2721, connecting ring plate; 2722, guiding rod; 2723, compression spring; 2724, pressing ring plate; 273, rotating driving part; 2731, driving gear two; 2732, driven gear two; 3, spiral lifting slope. Detailed implementation manners

[0027] The following Figure 1 - Figure 7 further elaborates on this application in detail.

[0028] Please refer to Figures 1 - 3, an after-treatment device for interior plastic parts, including a multi-axis manipulator 1 and a polishing mechanism 2 mounted on the multi-axis manipulator 1. The polishing mechanism 2 includes a rotating component 21 connected to the multi-axis manipulator 1. A fixed seat 22 is connected to the rotating component 21, and a plurality of polishing components 23 are arranged on the circumferential side of the fixed seat 22. The multi-axis manipulator 1 drives the fixed seat 22 to move, so that the polishing components 23 on the fixed seat 22 can be inserted into the inner wall of the hole of the interior plastic part for polishing. And the rotating component 21 can drive the fixed seat 22 to rotate, switching different polishing components 23 to contact the inner wall of the hole of the interior plastic part for polishing, which is convenient for each polishing component 23 to switch to the no-load state for heat dissipation after working for a certain time, avoiding the adverse effects caused by the rapid rise in temperature when the polishing component 23 contacts the inner ring of the interior plastic part due to its own too high temperature.

[0029] Refer to Figures 1 - 3 , the rotating component 21 includes a connecting sleeve connected to the multi-axis manipulator 1. A driving motor 1 (not shown in the figure) is fixedly arranged inside the connecting sleeve. The output shaft of the driving motor 1 movably penetrates the end face of the connecting sleeve and is fixedly connected to the fixed seat 22. The driving motor 1 intermittently drives the fixed seat 22 to rotate at regular intervals.

[0030] Refer to Figure 4 and Figure 6 , a heat dissipation cavity 221 is opened inside the fixed seat 22, and a plurality of rotating grooves are uniformly opened on the circumferential side of the fixed seat 22 along its circumferential direction. The rotating grooves are communicated with the heat dissipation cavity 221. A driving rotating shaft 24 is rotatably arranged between the upper and lower inner walls of the heat dissipation cavity 221. The polishing component 23 includes a driven rotating shaft 231 rotatably arranged in the rotating groove. A polishing head 232 that can slide up and down along its length direction is slidably sleeved on the driven rotating shaft 231. A part of the polishing head 232 protrudes from the circumferential outer wall of the fixed seat 22.

[0031] Refer to Figure 3 , Figure 4 and Figure 7 , a temperature reduction component 25 is arranged on the driving rotating shaft 24. In this scheme, a fan blade group coaxially fixed on the lower surface of the driving rotating shaft 24 is selected. A driving component 1 26 for driving the polishing head 232 to rotate is jointly arranged between the driving rotating shaft 24 and a plurality of driven rotating shafts 231. A driving component 2 27 for driving the polishing head 232 to slide up and down reciprocally is jointly arranged between the fixed seat 22 and the driving rotating shaft 24.

[0032] During specific operation, the rotating component 21 periodically and intermittently switches different polishing heads 232 to contact the inner ring of the interior plastic part for work, so that the idle polishing head 232 can dissipate heat naturally without load. At the same time, the driving component 26 rotates to drive the polishing head 232 to rotate continuously at high speed. The part of the polishing head 232 exposed outside the fixed seat 22 can polish the interior plastic part. The position of the polishing head 232 close to the heat dissipation cavity 221 is cooled by the fan blade group selected by the active rotating shaft 24, which can dissipate heat for both the working polishing head 232 and the idle polishing head 232, and has a good heat dissipation effect.

[0033] In addition, the driving component 27 can cyclically control the polishing head 232 to move up and down along the corresponding driven shaft 231 during operation, which can not only eliminate the difference in polishing patterns in the circumferential direction and improve the polishing quality, but also avoid the contact between a local single area of the polishing head 232 and the inner wall of the hole of the interior plastic part. The up and down movement causes the contact point to change dynamically, and the heat is dispersed with the movement, thereby avoiding the adverse effects of excessive temperature of the polishing head 232 on the holes of the interior plastic parts, thereby further improving the polishing quality.

[0034] See also Figure 4 A second drive motor is fixedly disposed inside one end of the fixing seat 22 close to the rotating assembly 21, and the output shaft of the second drive motor movably extends into the heat dissipation cavity 221 and is fixedly connected to the upper end of the active rotating shaft 24. The second drive motor drives the active rotating shaft 24 to rotate.

[0035] See also Figure 3 and Figure 7 The polishing head 232 is composed of an I-shaped disc 2321 and a polishing wheel 2322 fixedly mounted on the surface of the I-shaped disc 2321. The middle section of the driven shaft 231 is set in a rectangular shape. The four side surfaces of the rectangular section of the driven shaft 231 are all rotatably provided with multiple groups of balls 1 distributed up and down. A completely penetrating rectangular sliding hole is provided between the upper and lower surfaces of the I-shaped disc 2321. The balls 1 are in rolling connection with the inner wall of the corresponding side of the rectangular sliding hole. The rotation of the driven shaft 231 can drive the I-shaped disc 2321 to rotate. Under the action of the driving component 27, the I-shaped disc 2321 can also move up and down relative to the driven shaft 231. During the up and down movement, the friction of the polishing head 232 when it moves up and down relative to the driven shaft 231 is reduced by the balls 1.

[0036] See also Figure 4 and Figure 6, the first driving component 26 includes a first driving gear 261 coaxially and fixedly sleeved on the surface of the driving rotating shaft 24. The upper end of the driven rotating shaft 231 is coaxially and fixedly sleeved with a first driven gear 262. The first driving gear 261 and the first driven gear 262 are meshed with each other. When the driving rotating shaft 24 rotates, it drives the first driving gear 261 to rotate, causing multiple circumferential first driven gears 262 to rotate synchronously at high speed, thereby driving the corresponding driven rotating shafts 231 to rotate at high speed, and enabling the polishing head 232 to rotate at high speed.

[0037] Refer to Figure 3 , Figure 4 and Figure 6 , the second driving component 27 includes a rising driving part 271 arranged in the rotating groove and used to drive the polishing head 232 to rise. The rising driving part 271 includes a rotating sleeve 2711 rotatably arranged on the inner wall of the lower side of the rotating groove and coaxial with the corresponding driven rotating shaft 231. A driving seat 2712 is fixedly arranged at the upper end of the rotating sleeve 2711. The upper end surface of the driving seat 2712 is provided with a spiral lifting slope 3 and is circumferentially closed. A support column 2713 is fixedly arranged at the lower edge of the lower end of the I-shaped plate 2321. A second ball is rotatably arranged at the lower end of the support column 2713. The second ball is in rolling connection with the spiral lifting slope 3 on the upper side of the corresponding driving seat 2712. When the I-shaped plate 2321 rotates, the second ball at the lower end of the support column 2713 can move along the spiral lifting slope 3 on the upper side of the driving seat 2712. During the movement, the support column 2713 can drive the I-shaped plate 2321 to rise and fall along with the spiral lifting slope 3, so that the polishing head 232 moves up and down.

[0038] Refer to Figures 5 - 7 , an inner edge is integrally and fixedly arranged on the inner wall of the upper end of the heat dissipation cavity 221. A downward movement driving part 272 for driving the polishing head 232 to move downward is arranged on the inner edge. The downward movement driving part 272 corresponds to the rising driving part 271 one by one. The downward movement driving part 272 includes a connecting ring plate 2721 movably sleeved on the upper surface of the upper end of the driven rotating shaft 231 and located above the inner edge. A plurality of guide rods 2722 are fixedly arranged on the lower side of the connecting ring plate 2721 along its circumferential direction. The guide rods 2722 are slidably inserted into the inner edge, and a compression spring 2723 is fixedly arranged on the upper surface of the upper end of the guide rods 2722 and on the upper side of the inner edge. The compression spring 2723 is sleeved on the surface of the guide rod 2722. The guide rods 2722 are slidably inserted into the inner edge. The lower ends of adjacent guide rods 2722 are fixedly connected to a downward pressing ring plate 2724. A plurality of evenly arranged third balls are rotatably arranged on the lower side of the downward pressing ring plate 2724. The third balls are in rolling connection with the upper surface of the corresponding I-shaped plate 2321. The downward pressing ring plate 2724 abuts against the upper side of the I-shaped plate 2321 through the third balls to reduce the friction during high-speed rotation; at the same time, the guide rods 2722 and the compression spring 2723 cooperate to continuously press down the I-shaped plate 2321 by the downward pressing ring plate 2724 to ensure its smooth downward movement.

[0039] Refer to Figures 4 - 6 , the rotating sleeve 2711 is driven by a rotating driving part 273 between it and the driving rotating shaft 24. The rotating driving part 273 includes a second driving gear 2731 coaxially and fixedly sleeved on the surface of the driving rotating shaft 24. A second driven gear 2732 is coaxially and fixedly sleeved on the rotating sleeve 2711. The second driving gear 2731 meshes with the second driven gear 2732, and the diameter of the first driving gear 261 is larger than that of the second driving gear 2731. In order to prevent the polishing head 232 from moving up and down along the corresponding driven rotating shaft 231 too frequently, when the driving rotating shaft 24 rotates to drive the first driving gear 261 to rotate, it can drive the second driving gear 2731 to rotate in the same direction at the same time, so that the rotating sleeve 2711 can be sleeved on the surface of the corresponding driven rotating shaft 231 and rotate in the same direction as the driven rotating shaft 231. And the rotation speed of the rotating sleeve 2711 is slightly less than that of the driven rotating shaft 231. Thus, the rotation speed of the driving seat 2712 at the upper end of the rotating sleeve 2711 is slightly less than that of the I-shaped plate 2321, so that the balls at the lower end of the corresponding support column 2713 can move along the spiral lifting slope 3 on the surface of the driving seat 2712, ensuring that the up and down moving speed of the I-shaped plate 2321 will not be too fast.

[0040] The specific working process of this equipment is as follows: The multi-axis manipulator 1 inserts the fixing seat 22 into the holes (such as circular, strip-shaped holes, etc.) of the interior plastic parts that need to be polished. Start the second driving motor to make the driving rotating shaft 24 rotate, so that the driving rotating shaft 24 rotates. Through the first driving assembly 26 and the second driving assembly 27, all the polishing heads 232 can rotate at high speed and move up and down in a cycle at the same time. At the same time, the fan blade group rotates at high speed to generate a cooling air flow acting on the polishing wheels 2322 on the surfaces of the respective polishing heads 232 for cooling. The multi-axis manipulator 1 controls any one of the polishing heads 232 on the periphery of the fixing seat 22 to contact the inner wall of the hole and move along a predetermined path for polishing. After a certain interval of time, the fixing seat 22 is driven by the first driving motor to rotate a certain angle to switch the polishing head 232.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0042] In addition, the terms "first", "second", "No. 1", and "No. 2" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", "No. 1", or "No. 2" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0043] In the present invention, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] The embodiments of the specific implementation manners are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. An after-treatment device for processing automotive interior plastic parts, including a multi-axis manipulator and a polishing mechanism installed on the multi-axis manipulator, characterized in that: The polishing mechanism includes a rotating component connected to a multi-axis manipulator, and a fixing seat is connected to the rotating component. A plurality of polishing components are arranged on the circumferential side of the fixing seat; A heat dissipation cavity is formed inside the fixing seat, and a plurality of rotating grooves are uniformly formed on the circumferential side of the fixing seat along its circumferential direction. The rotating grooves communicate with the heat dissipation cavity. A driving rotating shaft is rotatably arranged between the upper and lower inner walls of the heat dissipation cavity. The polishing component includes a driven rotating shaft rotatably arranged in the rotating groove, and a polishing head that is slidably sleeved on the driven rotating shaft and can slide up and down along its length direction; A temperature reduction component is arranged on the driving rotating shaft. A first driving component for driving the polishing head to rotate is arranged between the driving rotating shaft and the plurality of driven rotating shafts. A second driving component for driving the polishing head to slide up and down reciprocally is arranged between the fixing seat and the driving rotating shaft; The rotating component and the first driving component cooperate to drive the plurality of polishing heads to rotate intermittently and revolve around the driving rotating shaft at the same time. The revolution of the plurality of polishing heads can cyclically switch different polishing heads to polish the inner wall of the hole of the interior plastic part. The rotation of the polishing head enables the temperature reduction component to cool the part of the polishing head inside the heat dissipation cavity.

2. The post-treatment equipment for processing automotive interior plastic parts according to claim 1, characterized in that, The rotating component includes a connecting sleeve connected to the multi-axis manipulator. A driving motor I is fixedly arranged inside the connecting sleeve. The output shaft of the driving motor I penetrates through the end face of the connecting sleeve movably and is fixedly connected to the fixing seat. The driving motor I drives the fixing seat to rotate intermittently and regularly.

3. The post-treatment equipment for processing automotive interior plastic parts according to claim 2, characterized in that, A driving motor II is fixedly arranged inside one end of the fixing seat close to the rotating component. The output shaft of the driving motor II extends into the heat dissipation cavity movably and is fixedly connected to the upper end of the driving rotating shaft.

4. The post-treatment equipment for processing automotive interior plastic parts according to claim 1, characterized in that, The polishing head is composed of an I-shaped disc and a polishing wheel fixedly sleeved on the surface of the I-shaped disc. The middle section of the driven rotating shaft is rectangular. A plurality of groups of balls I distributed up and down are rotatably arranged on the four side surfaces of the rectangular section of the driven rotating shaft. A rectangular sliding hole that completely penetrates and is rectangular is formed between the upper and lower surfaces of the I-shaped disc. The balls I are in rolling connection with the inner wall of the corresponding side of the rectangular sliding hole.

5. The post-treatment equipment for processing automotive interior plastic parts according to claim 1, characterized in that, The temperature reduction component is a fan blade group coaxially and fixedly sleeved on the lower surface of the driving rotating shaft.

6. The post-treatment equipment for processing automotive interior plastic parts according to claim 1, characterized in that, The first driving component includes a first driving gear coaxially and fixedly sleeved on the surface of the driving rotating shaft. A first driven gear is coaxially and fixedly sleeved on the upper end of the driven rotating shaft. The first driving gear and the first driven gear are meshed with each other.

7. The post-treatment equipment for processing automotive interior plastic parts according to claim 4, characterized in that, The second driving component includes a rising driving part arranged in the rotating groove and used for driving the polishing head to rise. An inner edge is integrally and fixedly arranged on the upper inner wall of the heat dissipation cavity. A descending driving part for driving the polishing head to move down is arranged on the inner edge. The descending driving part corresponds to the above driving part one by one, and the rising driving part is transmitted through a rotating driving part with the driving rotating shaft.

8. The post-treatment equipment for processing automotive interior plastic parts according to claim 7, characterized in that, The rising driving part includes a rotating sleeve rotatably arranged on the lower inner wall of the rotating groove and coaxial with the corresponding driven rotating shaft. A driving seat is fixedly arranged at the upper end of the rotating sleeve. The upper end surface of the driving seat is provided with a spiral lifting slope and is circumferentially closed. A support column is fixedly arranged at the lower edge of the I-shaped disc. A ball II is rotatably arranged at the lower end of the support column. The ball II is in rolling connection with the spiral lifting slope on the upper side of the corresponding driving seat.

9. The post-treatment equipment for processing automotive interior plastic parts according to claim 7, characterized in that, The downward movement driving part includes a connecting ring plate movably sleeved on the upper surface of the driven rotating shaft and located above the inner edge. A plurality of guide rods are fixedly arranged on the lower side of the connecting ring plate along its circumferential direction. The guide rods are slidably inserted into the inner edge, and a compression spring is fixedly arranged on the upper surface of the guide rods and the upper side of the inner edge together. The compression spring is sleeved on the surface of the guide rods. The lower ends of adjacent guide rods are fixedly connected together with a downward pressure ring plate. A plurality of evenly arranged ball bearings III are rotatably arranged on the lower side of the downward pressure ring plate. The ball bearings III are in rolling connection with the upper side surface of the corresponding I-shaped plate.

10. The post-treatment equipment for processing automotive interior plastic parts according to claim 8, characterized in that, The rotation driving part includes a second driving gear coaxially and fixedly sleeved on the surface of the driving rotating shaft. A second driven gear is coaxially and fixedly sleeved on the rotating sleeve. The second driving gear is engaged with the second driven gear.

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