A surface polishing device for automobile injection molding part production and processing

Abstract

The application relates to the polishing technical field, and discloses a surface polishing device for automobile injection molding part production and processing, which comprises a supporting table, a processing box fixedly installed at the upper end of the inside of the supporting table, and a polishing assembly arranged in the processing box; the polishing assembly comprises third threaded rods, the number of the third threaded rods is two, and the two third threaded rods are rotationally installed in the inside of the processing box; the output shaft of a third motor drives the third threaded rods to rotate, so that the third sliding table drives the subsequent polishing device to reciprocate, and the surface of the injection molding part is polished; then, the output shaft of a fourth motor drives the fourth threaded rods to rotate, the fourth threaded rods can drive the fourth sliding table to slide in the second sliding groove after rotating, and the moving table can be driven to move up and down in the sliding process, so that the first polishing wheel can be attached to the outer side of the injection molding part, and the polishing work can be carried out.

Description

Technical Field

[0001] The invention relates to the technical field of polishing devices, in particular to a surface polishing device for producing and processing automobile injection molded parts. Background Art

[0002] Automotive injection molded parts are automotive components produced through the injection molding process. Molten plastic is injected into a mold and then solidified after cooling to form functional or structural components. Their core characteristics are high-precision, high-efficiency mass production through molds, and the ability to meet complex design requirements.

[0003] However, during the production and processing of injection molded parts, burrs, flaws or unevenness often appear on their surfaces, which not only affects the aesthetics of the product, but may also affect its performance and lifespan.

[0004] Therefore, it is particularly important to perform surface polishing on automobile injection molded parts. However, the polishing devices currently available on the market have the following problems during use: due to the different molds of injection molded parts, the shapes and heights of the produced injection molded parts are different. When performing surface polishing on injection molded parts of different shapes and heights, the polishing angle cannot be adjusted in real time according to different forms, resulting in limitations in the surface polishing of injection molded parts and affecting the high efficiency of the surface polishing of injection molded parts; after the surface polishing of automobile injection molded parts, the injection molded parts cannot be removed in time and need to be manually picked up and placed, and automatic unloading cannot be achieved in time after polishing is completed, further reducing the safety and reliability of the use of the surface polishing device and reducing the surface polishing efficiency.

[0005] Therefore, a new type of surface polishing device for automobile injection molding production and processing is needed to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a surface polishing device for the production and processing of automobile injection molded parts to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a surface polishing device for the production and processing of automobile injection molded parts, comprising a support table, a processing box fixedly mounted on the upper end of the support table, and a polishing assembly provided inside the processing box;

[0008] The grinding assembly includes two third threaded rods, and the two third threaded rods are rotatably mounted inside the processing box;

[0009] A third slide is rotatably mounted on the circumferential surfaces of the two third threaded rods, a movable table is slidably mounted on the upper end of the third slide, and a first grinding wheel is rotatably mounted on the upper end of the movable table;

[0010] Support plates are provided on the outer sides of both ends of the third slide, and second grinding wheels are rotatably mounted on the inner sides of both ends of the support plates, and the second grinding wheel at the lower end is in contact with the inclined surface of the movable platform.

[0011] Preferably, an arc-shaped blanking plate is fixedly installed on the inner lower end surface of the support table and below the processing box, a buffer plate is fixedly installed on the lower front end of the arc-shaped blanking plate, a rear sealing plate is fixedly installed on the rear end of the processing box, and a front observation plate is fixedly installed on the front end of the processing box.

[0012] Preferably, an installation groove is opened from the upper end to the inside of the rear sealing plate, a filter plate is slidably installed inside the installation groove, a connecting cover is fixedly installed at the rear end of the rear sealing plate, a connecting pipe is fixedly installed at the rear end of the connecting cover, and a fan is fixedly installed at the upper end of the connecting pipe.

[0013] Preferably, a feed port is provided at the upper end of the processing box, a discharge port is provided from the lower end surface of the processing box to the inside, a blanking assembly is provided on the upper end surface of the processing box, and the blanking assembly includes a limit plate, and there are two limit plates. The lower ends of the two limit plates are fixedly installed on the opening edge of the feed port, and a first motor is fixedly installed at the center position of the upper end of the limit plate, and a first threaded rod is fixedly installed on the output shaft of the first motor. The first threaded rod is located inside the limit plate and a first slide is threadedly installed on the circumferential surface.

[0014] Preferably, a vertical mounting plate is fixedly installed on the inner side of the outer end of the first slide, a double-headed groove rod is fixedly installed on the inner side of the lower end of the mounting plate, micro-drives are fixed on the outer sides of both ends of the double-headed groove rod, clamping rods are fixedly installed on the output shaft of the micro-drive, and a material box is fixedly installed on the inner upper ends of the left and right limit plates, and a U-shaped plate is fixedly installed on the inner lower end surface of the material box at equal horizontal intervals, and a limiting rotating rod is rotatably installed on the inner side of the U-shaped plate, and an injection molded part is placed on the upper end surface of the limiting rotating rod.

[0015] Preferably, a second motor in a symmetrical state is provided inside the processing box, and adjusting screws are fixedly installed on the output shafts at both ends of the second motor, and support rods are threadably installed on the circumferential surface of the adjusting screws, and the main motor is fixedly installed on the inner sides of two adjacent support rods, and a cavity box is fixedly installed on the output shaft of the main motor, and limiting slides are fixedly installed on the outer circumferential surface of the cavity box, and the limiting slides are grouped in pairs.

[0016] Preferably, a forward and reverse motor is fixedly installed at the center of one end of the outer side of the cavity box away from the main motor, a gear plate is fixedly installed on the output shaft of the forward and reverse motor and located inside the cavity box, and a second threaded rod is rotatably installed from the outer side to the inside of the cavity box.

[0017] Preferably, a gear is fixedly installed at one end of the second threaded rod located inside the cavity box, and the gear is engaged with the gear plate. A second slide is threadedly installed on the circumferential surface of the second threaded rod, and both ends of the second slide are slidably installed on the circumferential surface of the adjacent limiting slide rod, and a clamping block is fixedly installed on one end face inside the second slide.

[0018] Preferably, a third motor is fixedly installed on the outside of one end of the processing box, the output shaft of the third motor is fixedly connected to one end of the third threaded rod, a second slide groove is provided from the upper end surface of the third slide to the inside, a fourth motor is fixedly installed on the outside of one end of the third slide, the output shaft of the fourth motor is located in the second slide groove and a fourth threaded rod is fixedly installed, a fourth slide is threadedly installed on the circumferential surface of the fourth threaded rod, and the upper end of the fourth slide is fitted and slidably connected to the lower end of the moving platform.

[0019] Preferably, U-shaped limit plates are fixedly installed on both sides of the third slide, the inner side of the U-shaped limit plate is slidingly connected to the movable platform, one end of the third slide is fixedly connected to the outer side of the fourth motor and the lower end of the support plate, and the upper end of the support plate is rotatably connected to the inner side of the middle part of the oblique installation rod.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention drives the third threaded rod to rotate through the output shaft of the third motor, so that the third slide can carry the subsequent polishing device to reciprocate, thereby realizing the polishing operation on the surface of the injection molded part; then, the output shaft of the fourth motor is started to drive the fourth threaded rod to rotate, and the rotation of the fourth threaded rod can make the fourth slide slide inside the second slide groove, and in the process of sliding, the movable table can be driven to move up and down, so that the first polishing wheel and the outer edge of the injection molded part can be fitted together, thereby performing the polishing operation, and then, the sliding of the movable table can drive the oblique mounting rod to rotate, so that the second polishing wheel and the surface of the injection molded part can be contacted, thereby realizing polishing, and through the cooperation of the above structure, the raised position of the surface of the injection molded part can be adjusted in real time, thereby completing the polishing operation.

[0022] 2. In the present invention, during use, the second motor can rotate the adjusting screw, and during the rotation process, the support rod can drive the left and right main motors to move closer or farther away, so that it can be suitable for injection molded parts with similar lengths; then, in conjunction with the forward and reverse motors, the gear plate can drive the gear to rotate, so that the gear can rotate with the second threaded rod, and during the rotation process, the second slide can move with the clamping block, thereby realizing the clamping operation of injection molded parts of different sizes, so that the present device can be suitable for clamping parts of different sizes.

[0023] 3. The present invention can rotate the first threaded rod through the first motor, and can slide the first slide during the rotation, and can synchronously move the double-headed groove rod during the sliding. During the movement, the clamping rod can clamp the two ends of the injection molded part, and then send the clamped injection molded part to the inside of the processing box, thereby completing the automatic loading operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 It is a side view of the structure of the present invention;

[0026] Figure 2 It is a left side view of the structure of the present invention;

[0027] Figure 3 It is a schematic diagram of the processing box of the present invention;

[0028] Figure 4 It is a schematic diagram of the material box of the present invention;

[0029] Figure 5 It is a schematic structural diagram of the blanking assembly of the present invention;

[0030] Figure 6 This is a schematic diagram of the interior of the processing box of the present invention;

[0031] Figure 7 This is a structural connection diagram of the main motor and the cavity box of the present invention;

[0032] Figure 8 This is a schematic diagram of the gear plate, gears and forward and reverse motor structure of the present invention;

[0033] FIG9 is a diagram showing the overall structure of the polishing assembly of the present invention;

[0034] FIG10 is a partial detail view of the grinding assembly of the present invention;

[0035] Figure 11 This is a structural diagram of the third slide and moving platform of the present invention.

[0036] Description of reference numerals:

[0037] 1. Support platform; 101. Curved blanking plate; 102. Buffer plate; 103. Processing box; 104. Rear sealing plate; 105. Front observation plate; 106. Mounting slot; 107. Filter plate; 108. Connecting cover; 109. Connecting pipe; 110. Fan; 111. Inlet; 112. Outlet

[0038] 2. Blanking assembly; 201. Limit plate; 202. First motor; 203. First threaded rod; 204. First slide; 205. Mounting plate; 206. Double-ended groove rod; 207. Micro-actuator; 208. Clamping rod; 209. Material box; 210. U-shaped plate; 211. Limiting rotating rod; 3. Injection molded parts;

[0039] 4. Second motor; 401. Adjusting screw; 402. Support rod; 403. Main motor; 404. Cavity box; 405. Limiting slide; 406. Forward and reverse motor; 407. Second threaded rod; 408. Gear; 409. Gear plate; 410. Second slide; 411. Clamping block;

[0040] 5. Grinding assembly; 501. Third motor; 502. Third threaded rod; 503. Third slide; 504. Second slide; 505. Fourth motor; 506. Fourth threaded rod; 507. Fourth slide; 508. U-shaped limit plate; 509. Moving table; 510. First grinding wheel; 511. Support plate; 512. Oblique mounting rod; 513. Second grinding wheel. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] See also Figures 1 to 11 , the present invention provides a technical solution:

[0043] A surface polishing device for the production and processing of automotive injection molded parts includes a support platform 1, an arc-shaped blanking plate 101 is fixedly installed on the inner side of the support platform 1, and a buffer plate 102 is fixedly installed laterally at the front end of the arc-shaped blanking plate 101. The inner side of the buffer plate 102 is made of a buffer material, such as sponge, rubber or other soft material, to increase the buffering effect when the injection molded part 3 falls, ensuring that the injection molded part 3 can be in a safe state after polishing.

[0044] A processing box 103 is fixedly installed on the inner upper end of the support table 1, and a rear sealing plate 104 is fixedly installed on the rear end of the processing box 103, and a front observation plate 105 is fixedly installed on the front end of the processing box 103. Three mounting grooves 106 are provided from the upper end surface to the inside of the rear sealing plate 104, and filter plates 107 are slidably installed inside the mounting grooves 106. It should be noted that evenly distributed through holes are provided from the outer side surface to the inner side surface of the rear sealing plate 104, which is used to allow dust generated inside the processing box 103 to enter the filter plate 107 for filtering and then be discharged.

[0045] At the rear end of the rear sealing plate 104 and at the position corresponding to the filter plate 107, three connecting covers 108 are fixedly installed. At the center position of the rear end of the three connecting covers 108, a connecting pipe 109 is fixedly installed. At the rear end of the connecting pipe 109, a fan 110 is fixedly installed. Figure 2 shown.

[0046] During use, after the fan 110 is started, the dust inside the processing box 103 can be sucked out through the rear sealing plate 104 through the cooperation of the connecting pipe 109 and the connecting cover 108, and then the dust is filtered through the filter plate 107 and discharged to the outside of the device to prevent dust from accumulating in the processing box 103 and affecting the polishing operation.

[0047] During use, the operator can quickly replace the filter plate 107 according to the date to ensure its filtering effect.

[0048] An inlet 111 is provided from the upper end of the processing box 103 to the inside for the injection molded parts 3 to enter, and an outlet 112 is provided from the lower end surface of the processing box 103 to the inside for the injection molded parts 3 to slide out from the inside of the processing box 103 .

[0049] The upper end surface of the processing box 103 and the two sides of the edge of the feeding port 111 are fixedly installed with the limiting plate 201 in the blanking component 2, the top center position of the limiting plate 201 is fixedly installed with the first motor 202, the output shaft of the first motor 202 and the interior of the limiting plate 201 are fixedly installed with the first threaded rod 203, and the circumferential surface of the first threaded rod 203 is threadedly installed with the first slide 204, as shown in FIG. Figure 5As shown, it should be noted that the first slide 204 is in contact with the inner side surface of the limiting plate 201 , so the first slide 204 can only slide and not rotate during use.

[0050] During use, the first motor 202 is started, and the output shaft of the first motor 202 rotates the first threaded rod 203 , and the first slide 204 slides up and down when the first threaded rod 203 rotates.

[0051] A mounting plate 205 is fixedly installed on the inner side of one end of the outer side of the first slide 204, a double-headed groove rod 206 is fixedly installed on the inner side of the lower end of the mounting plate 205, a micro-driver 207 is fixedly installed on the outer side of both ends of the double-headed groove rod 206, and a clamping rod 208 is fixedly installed on the output shaft of the micro-driver 207. Then, a material box 209 is fixedly installed on the inner upper ends of the left and right limit plates 201, and U-shaped plates 210 are fixedly installed laterally and evenly on the front and rear sides of the inner lower end of the material box 209. A limiting rotating rod 211 is rotatably installed on the inner side of the U-shaped plate 210. It should be noted that the limiting rotating rod 211 and the U-shaped plate 210 are rotatably connected using a return spring.

[0052] During use, the micro-driver 207 is started, and the output shaft of the micro-driver 207 rotates with the clamping rod 208. When the clamping rod 208 rotates to the appropriate position, the injection molded part 3 is placed inside the material box 209. Then the micro-driver 207 is started in reverse, and the output shaft of the micro-driver 207 clamps the injection molded part 3 with the clamping rod 208. During the clamping process, the limit rotating rod 211 limits the front and rear sides of the injection molded part 3 to prevent the injection molded part 3 from shaking during the clamping process. Then the first motor 202 is started, and the output shaft of the first motor 202 rotates with the first threaded rod 203. When the first threaded rod 203 rotates, the first slide 204 slides down with the injection molded part 3 to the inside of the processing box 103, thereby completing the loading of the injection molded part 3.

[0053] Furthermore, during use, when the injection molded part 3 is transferred to the interior of the processing box 103 , the limiting rotating rod 211 inside the material box 209 will automatically reset, thereby achieving the limiting operation for the next injection molded part 3 .

[0054] A second motor 4 is fixedly mounted on the middle position of the front and rear sides of the inner part of the processing box 103, and an adjusting screw 401 is fixedly mounted on the output shafts at both ends of the second motor 4. A support rod 402 is threadedly mounted on the circumferential surface of the adjusting screw 401. A main motor 403 is fixedly mounted on one end of the inner side of two adjacent support rods 402. A cavity box 404 is fixedly mounted on the output shaft of the main motor 403. Eight limiting slide bars 405 are fixedly mounted on the outer circumferential surface of the cavity box 404, and the limiting slide bars 405 are grouped in pairs, such as Figure 7 As shown, a forward and reverse motor 406 is fixedly installed at the center position of one end of the cavity box 404 away from the main motor 403, and a gear plate 409 is fixedly installed at the output of the forward and reverse motor 406 and located inside the cavity box 404. Then, a second threaded rod 407 is rotatably installed from the outside to the inside of the cavity box 404 and located on the inner side of two adjacent limiting slides 405. The second threaded rod 407 is located inside the cavity box 404 and is fixedly installed with a gear 408. The gear 408 and the gear plate 409 are engaged, and a second slide 410 is threadedly installed on the circumferential surface of the second threaded rod 407. Both ends of the second slide 410 are slidably installed on the circumferential surfaces of the adjacent limiting slides 405, and a clamping block 411 is fixedly installed on the inner side surface of the second slide 410. Figure 7 shown.

[0055] During use, when the automobile injection molded part 3 needs to be polished, the injection molded part 3 is located between the left and right main motors 403 .

[0056] Driven by the forward and reverse motor 406, the gear plate 409 drives the gear 408 to rotate, thereby driving the second threaded rod 407 to rotate. Since the second threaded rod 407 and the second slide 410 are threadedly installed, the rotation of the second threaded rod 407 will drive the second slide 410 to slide on the circumferential surface of the limiting slide 405, so that the clamping block 411 clamps and fixes the automobile injection molded part 3.

[0057] At this time, the main motor 403 is started, and the output shaft of the main motor 403 drives the cavity box 404 to rotate, and then drives the injection molded part 3 to rotate, so as to perform subsequent overall surface polishing operations.

[0058] Then, the second motor 4 drives the adjusting screw 401 to rotate. Since the adjusting screw 401 and the support rod 402 are threadedly installed, the rotation of the adjusting screw 401 will drive the left and right horizontal support rods 402 and the main motor 403, the cavity box 404 and the subsequently clamped injection molded parts 3 thereon to move inside the processing box 103, thereby realizing all-round polishing of the automobile injection molded parts 3. During the polishing process, the rotation direction of the forward and reverse motors 406 can be adjusted as needed to change the clamping force of the clamping block 411 on the automobile injection molded parts 3, thereby adapting to the polishing requirements of injection molded parts 3 of different sizes and shapes.

[0059] Two third motors 501 in the grinding assembly 5 are fixedly installed on the left side of the processing box 103. A third threaded rod 502 is fixedly installed on the output shaft of the third motor 501 and located inside the processing box 103. A third slide 503 is installed on the circumferential surface of the third threaded rod 502 with a common thread rotation. A second slide 504 is provided from the upper end surface of the third slide 503 to the inside. Then, a fourth motor 505 is fixedly installed at one end of the third slide 503. A fourth threaded rod 506 is fixedly installed on the output shaft of the fourth motor 505 and located inside the second slide 504. The fourth threaded rod 506 and the third threaded rod 502 are in a staggered state and there will be no interference. A fourth slide 507 is installed on the circumferential surface of the fourth threaded rod 506 and located inside the second slide 504 with a common thread rotation.

[0060] A U-shaped limiting plate 508 is fixedly installed in the middle of the left and right sides of the third slide 503. A movable platform 509 is slidably installed on the inner sides of the two U-shaped limiting plates 508. A first grinding wheel 510 is rotatably installed on the top of the movable platform 509.

[0061] Then, a symmetrical support plate 511 is fixedly installed on the other end of the third slide 503 and both sides of the fourth motor 505, and an oblique mounting rod 512 is rotatably installed inside the upper end of the support plate 511, and a second grinding wheel 513 is rotatably installed on the upper and lower ends of the oblique mounting rod 512.

[0062] During use, the third motor 501 is started, and the output shaft of the third motor 501 rotates the third threaded rod 502. The rotation of the third threaded rod 502 can move the third slide 503, thereby causing the subsequent structures to move synchronously.

[0063] Then, the fourth motor 505 is started, and the output shaft of the fourth motor 505 rotates with the fourth threaded rod 506. When the fourth threaded rod 506 rotates, the fourth slide 507 can slide inside the second slide groove 504, thereby driving the movable table 509 to slide up and down. During the sliding process, the oblique mounting rod 512 can be rotated, so that the first grinding wheel 510 and the second grinding wheel 513 can contact the outer surface of the injection molded part 3, thereby enabling the grinding operation.

[0064] It should be noted that after polishing is completed, the clamping block 411 separates the injection molded part 3, so that the injection molded part 3 can fall to the surface of the curved blanking plate 101, and then roll to the rear end face of the buffer plate 102. It should be noted that the curved blanking plate 101 is also made of buffer material to ensure that the injection molded part 3 will not be damaged by collision after falling.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A surface polishing device for the production and processing of automobile injection molded parts, characterized by: It comprises a support platform (1), a processing box (103) is fixedly mounted on the upper end of the interior of the support platform (1), and a grinding assembly (5) is provided inside the processing box (103); The grinding assembly (5) comprises a third threaded rod (502), the number of the third threaded rods (502) is two, and the two third threaded rods (502) are rotatably mounted inside the processing box (103); A third slide (503) is rotatably mounted on the circumferential surfaces of the two third threaded rods (502), a movable table (509) is slidably mounted on the upper end of the third slide (503), and a first grinding wheel (510) is rotatably mounted on the upper end of the movable table (509); Support plates (511) are provided on the outer sides of both ends of the third slide (503), and second grinding wheels (513) are rotatably mounted on the inner sides of both ends of the support plates (511), and the lower end of the second grinding wheel (513) is in contact with the inclined surface of the movable platform (509); A symmetrical second motor (4) is provided inside the processing box (103), and adjusting screws (401) are fixedly mounted on the output shafts at both ends of the second motor (4), and support rods (402) are threadedly mounted on the circumferential surface of the adjusting screws (401), and a main motor (403) is fixedly mounted on the inner sides of two adjacent support rods (402), and a cavity box (404) is fixedly mounted on the output shaft of the main motor (403), and a limiting slide bar (405) is fixedly mounted on the outer circumferential surface of the cavity box (404), and the limiting slide bars (405) are arranged in pairs.

2. A surface polishing device for automobile injection molding production and processing according to claim 1, characterized in that: An arc-shaped blanking plate (101) is fixedly mounted on the inner lower end surface of the support platform (1) and located below the processing box (103); a buffer plate (102) is fixedly mounted on the front portion of the lower end of the arc-shaped blanking plate (101); a rear sealing plate (104) is fixedly mounted on the rear end of the processing box (103); and a front observation plate (105) is fixedly mounted on the front end of the processing box (103).

3. The surface polishing device for automobile injection molding production and processing according to claim 2, characterized in that: A mounting groove (106) is provided from the upper end to the interior of the rear sealing plate (104), a filter plate (107) is slidably mounted inside the mounting groove (106), a connecting cover (108) is fixedly mounted on the rear end of each of the rear sealing plates (104), a connecting pipe (109) is fixedly mounted on the rear end of each of the connecting covers (108), and a fan (110) is fixedly mounted on the upper end of each of the connecting pipes (109).

4. The surface polishing device for automobile injection molding production and processing according to claim 1, characterized in that: The upper end of the processing box (103) is provided with a material inlet (111), and the lower end surface of the processing box (103) is provided with a material outlet (112) to the inside. The upper end surface of the processing box (103) is provided with a blanking assembly (2), and the blanking assembly (2) includes a limit plate (201). The number of the limit plates (201) is two, and the lower ends of the two limit plates (201) are fixedly installed on the opening edge of the material inlet (111). A first motor (202) is fixedly installed at the center position of the upper end of the limit plate (201), and a first threaded rod (203) is fixedly installed on the output shaft of the first motor (202). The first threaded rod (203) is located inside the limit plate (201) and a first slide (204) is threadedly installed on the circumferential surface.

5. The surface polishing device for automobile injection molding production and processing according to claim 4, characterized in that: A vertical mounting plate (205) is fixedly mounted on the inner side of the outer end of the first slide (204), a double-headed groove rod (206) is fixedly mounted on the inner side of the lower end of the mounting plate (205), a micro driver (207) is fixed on the outer sides of both ends of the double-headed groove rod (206), a clamping rod (208) is fixedly mounted on the output shaft of the micro driver (207), a material box (209) is fixedly mounted on the inner upper ends of the left and right limit plates (201), a U-shaped plate (210) is fixedly mounted on the inner lower end surface of the material box (209) at equal intervals in the horizontal direction, a limit rotating rod (211) is rotatably mounted on the inner side of each of the U-shaped plates (210), and an injection molded part (3) is placed on the upper end surface of the limit rotating rod (211).

6. The surface polishing device for automobile injection molding production and processing according to claim 1, characterized in that: A forward and reverse motor (406) is fixedly mounted at the center of one end of the outer side of the cavity box (404) away from the main motor (403); a gear plate (409) is fixedly mounted on the output shaft of the forward and reverse motor (406) and located inside the cavity box (404); and a second threaded rod (407) is rotatably mounted from the outer side to the inner side of the cavity box (404).

7. A surface polishing device for automobile injection molding production and processing according to claim 6, characterized in that: A gear (408) is fixedly mounted on one end of the second threaded rod (407) located inside the cavity box (404), and the gear (408) is meshed with the gear plate (409). A second slide (410) is threadedly mounted on the circumferential surface of the second threaded rod (407), and both ends of the second slide (410) are slidably mounted on the circumferential surface of the adjacent limiting slide (405). A clamping block (411) is fixedly mounted on one end face inside the second slide (410).

8. The surface polishing device for automobile injection molding production and processing according to claim 1, characterized in that: A third motor (501) is fixedly mounted on the outer side of one end of the processing box (103), the output shaft of the third motor (501) is fixedly connected to one end of a third threaded rod (502), a second slide groove (504) is provided from the upper end surface to the inside of the third slide (503), a fourth motor (505) is fixedly mounted on the outer side of one end of the third slide (503), the output shaft of the fourth motor (505) is fixedly mounted on the inside of the second slide groove (504), a fourth threaded rod (506) is fixedly mounted on the circumferential surface of the fourth threaded rod (506), and the upper end of the fourth slide (507) is in sliding connection with the lower end of the movable platform (509).

9. The surface polishing device for automobile injection molding production and processing according to claim 8, characterized in that: U-shaped limiting plates (508) are fixedly installed on both sides of the third slide (503), the inner side of the U-shaped limiting plates (508) is slidably connected to the movable platform (509), one end of the third slide (503) is fixedly connected to the outer side of the fourth motor (505) and the lower end of the support plate (511), and the upper end of the support plate (511) is rotatably connected to the inner side of the middle part of the oblique mounting rod (512).

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