CN221159723U

CN221159723U - Automobile injection molding corner polishing device

Info

Publication number: CN221159723U
Application number: CN202323183544.XU
Authority: CN
Inventors: 廖明浪
Original assignee: Chongqing Yujinfei Technology Co ltd
Current assignee: Chongqing Yujinfei Technology Co ltd
Priority date: 2023-11-24
Filing date: 2023-11-24
Publication date: 2024-06-18
Anticipated expiration: 2033-11-24

Abstract

The utility model belongs to the technical field of automobile injection molding parts, in particular to an automobile injection molding part corner polishing device, which comprises a base; the grinding wheel is fixedly arranged at the front end of an output shaft of the grinding machine, a protective cover is fixedly arranged at one side of the mounting seat, a water spray nozzle is fixedly arranged at one side of the lower end of the protective cover, a hose is fixedly arranged at one end of the water spray nozzle, one end of the hose penetrates through a hole at the bottom of the sliding seat, a mounting hole is formed in the center of the base, a bearing grating plate is fixedly arranged in the mounting hole, a water tank is fixedly arranged at the center of the bottom of the base, a groove is formed in one side of the upper end of the water tank, a drawer is slidably arranged in the groove, a filtering hole is formed in the bottom of the drawer, a water outlet is formed in one side of the bottom of the water tank, a water pump is fixedly arranged at one side of the bottom of the water tank, the water inlet end of the water pump is fixedly arranged on the water outlet, and the water outlet end of the water pump is fixedly connected with the other end of the hose; through this setting, produce a large amount of dust when avoiding polishing, collect the piece granule through rivers simultaneously.

Description

Automobile injection molding corner polishing device

Technical Field

The utility model relates to the technical field of automobile injection molding, in particular to an automobile injection molding corner polishing device.

Background

The automobile injection molding part refers to an automobile part processed by an injection molding process. Injection molding is a process of injecting a plastic material into a mold and forming a part of a specific shape. Automotive injection molded parts are commonly used to manufacture lightweight, efficient and low cost automotive parts such as bumpers, fascia, door panels, seat frames, and the like.

The operating principle of the automobile injection molding piece corner polishing device is that a motor is utilized to drive a rotary table, an automobile injection molding piece is placed on the rotary table, then a second telescopic rod is pushed to fix the automobile injection molding piece by a fixed disc, a polishing disc is pushed to the corner of the automobile injection molding piece by a first telescopic rod, and a motor is started, so that the automobile injection molding piece on the rotary table rotates and is polished by friction of the polishing disc, and the automobile injection molding piece is uniformly polished.

The piece dust thing that current grinding device produced at the in-process of polishing does not carry out effectual album dirt and handles, and piece and dust pile up in the device, influence the degree of accuracy of polishing, produce the dust more easily when polishing simultaneously, influence operating personnel's health, consequently, proposes an automobile injection molding corner grinding device to above-mentioned problem.

Disclosure of utility model

In order to make up the defects of the prior art, the dust and the scraps generated in the polishing process are not effectively collected in a dust collecting mode, scraps and dust are accumulated in the device to influence the polishing accuracy, and meanwhile, the dust is easier to generate during polishing to influence the physical health of operators.

The technical scheme adopted for solving the technical problems is as follows: the utility model relates to an automobile injection molding piece corner polishing device, which comprises a base; the two sides of the upper part of the base are fixedly provided with brackets, the inner sides of the top of the brackets are provided with sliding grooves, sliding plates are arranged in the sliding grooves in a sliding manner, the two sides of the two ends of the bottom of the sliding plates are fixedly provided with connecting rods, a screw rod is arranged right below the sliding plates, the two ends of the screw rod are provided with sliding seats, one side of the lower part of the sliding seats is provided with holes, the two ends of the screw rod are rotatably arranged in the sliding seats through bearings, the screw rod is provided with sliding blocks in a sliding manner, the center of one side of each sliding block is provided with a threaded hole, the two sides of each threaded hole are provided with limiting holes, one side of the top of each sliding block is fixedly provided with a mounting seat through a connecting plate, the connecting plate is provided with communication holes, the grinding machine is fixedly arranged in the mounting seat, the grinding wheel is fixedly arranged at the front end of the output shaft of the grinding machine, the protective cover is fixedly arranged on one side of the mounting seat, the water spray nozzle is fixedly arranged on one side of the lower end of the protective cover, a hose is fixedly arranged at one end of the water spray nozzle, one end of the hose penetrates through a hole at the bottom of the sliding seat, the two sides of the center of the upper part of the base are fixedly provided with vertical plates, one side of the upper end of each vertical plate is fixedly provided with a cylinder, one side of the lower end of each vertical plate is provided with a sliding hole, a sliding rod is slidably arranged in each sliding hole, the front end of a piston rod of each cylinder is fixedly provided with a push plate, one end of each sliding rod is fixedly arranged on one side of the lower part of the push plate, and the other side of the push plate is rotatably provided with a clamping plate through a shaft; through setting up the water jet and spraying water to grinding wheel, produce the dust when preventing to polish

The center of the base is provided with a mounting hole, a bearing grating plate is fixedly arranged in the mounting hole, the center of the bottom of the base is fixedly provided with a water tank, one side of the upper end of the water tank is provided with a groove, a drawer is slidably arranged in the groove, the bottom of the drawer is provided with a filtering hole, one side of the bottom of the water tank is provided with a water outlet, one side of the bottom of the water tank is fixedly provided with a water pump, the water inlet end of the water pump is fixedly arranged on the water outlet, the water outlet end of the water pump is fixedly connected with the other end of the hose, the water tank is driven by debris generated during polishing through water flow flushing, the debris is filtered through the filtering holes in the drawer, the debris is collected in the drawer, and water enters the bottom of the water tank to circulate.

Preferably, a motor is fixedly arranged on one side of the center of the top of the sliding plate, a driving wheel is fixedly arranged at the front end of a rotating shaft of the motor, a rotating shaft is arranged on one side of the motor, fixing plates are fixedly arranged at two ends of the rotating shaft and are fixedly arranged on the upper portion of the sliding plate, two ends of the rotating shaft are rotatably arranged in the fixing plates through bearings, rotating wheels are fixedly arranged at the center of the rotating shaft, the driving wheel and the rotating wheels are cooperatively rotated through a belt, gears are fixedly arranged at two ends of the rotating shaft, a toothed plate is fixedly arranged at the top of the support, teeth of the gears are meshed with tooth grooves on the toothed plate, and when the gears rotate, a polisher is driven to move back and forth under the action of the toothed plate.

Preferably, both ends of the screw rod are rotatably mounted on the slide seat through bearings, limit rods are arranged on both sides of the screw rod, both ends of the limit rods are fixedly mounted on the slide seat, the middle of the slide block is slidably mounted on the screw rod through threaded holes, both sides of the slide block are slidably mounted on the limit rods through limit holes, a motor is fixedly mounted on one side of the slide seat, one end of the screw rod penetrates through the slide seat and is fixedly connected with an output shaft of the motor, the screw rod is arranged, the motor drives the screw rod to rotate, and the polishing machine is driven to move left and right through the slide block.

Preferably, the mounting holes are formed in two sides of the sliding seat, the sliding seat is slidably mounted on the connecting rod through the mounting holes, the supporting plate is fixedly mounted at the bottom of the connecting rod, the hydraulic cylinder is fixedly mounted at the center of the top of the supporting plate, the front end of a piston rod of the hydraulic cylinder is fixedly mounted at the bottom of the sliding seat, and the hydraulic cylinder is arranged to push the grinding machine to lift so as to grind corners of an injection molding piece of an automobile.

Preferably, an air inlet hole is formed in one side of the protective cover and is communicated with the communication hole, an air pump is fixedly installed on the upper portion of the mounting seat, the air outlet end of the air pump is fixedly connected to the communication hole, and when polishing, the polishing wheel is blown to prevent chips from splashing by arranging the air pump.

Preferably, a second motor is fixedly arranged on one side of the push plate, the front end of a rotating shaft of the second motor is fixedly connected with the shaft, the clamping plate is driven to rotate by the second motor, and the automobile injection molding piece is subjected to edge replacement and polishing.

The utility model has the advantages that:

1. According to the utility model, when the polishing device is used, an automobile injection molding piece to be polished is placed on the bearing grid plate, the first motor is started, the rotating shaft is driven to rotate to adjust the longitudinal coordinates of the polishing wheel, the motor is started, the four rods are driven to rotate, the sliding block is driven to slide through the screw rod, the transverse coordinates of the polishing wheel are adjusted, the polishing wheel is moved to the polishing starting position of the injection molding piece, the polishing machine is started, the polishing machine drives the polishing wheel to rotate, the starting cylinder drives the pushing plate to drive the clamping plates to clamp two sides of the injection molding piece, the water pump pumps water from the bottom of the water tank, the water nozzle is pumped into the polishing wheel through the hose, the hydraulic cylinder is started, the polishing wheel is driven to fall onto the surface of the injection molding piece to polish, chips generated during polishing enter the water tank through the bearing grid plate under the flushing of water flow, and fall into the drawer, the chips are filtered in the drawer through the filter holes at the bottom of the drawer, and the filtered water enters the bottom of the water tank to be recycled, so that the dust collection treatment function is realized, the problem that the chip dust generated in the polishing process of the existing polishing device is effectively collected in the polishing process is solved, the labor burden of follow-up cleaning personnel is increased, and the polishing work efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic view of a side view structure of a polishing apparatus;

FIG. 2 is a schematic view of the other side view of the polishing apparatus;

FIG. 3 is a schematic view of a fixing device;

FIG. 4 is a schematic view of a polishing apparatus;

Fig. 5 is a schematic view of the structure of the inside of the water tank.

In the figure: 1. a base; 2. a bracket; 3. a toothed plate; 4. a slide plate; 5. a motor I; 6. a driving wheel; 7. a belt; 8. a rotating wheel; 9. a rotating shaft; 10. a gear; 11. a connecting rod; 12. a slide; 13. a screw rod; 14. a limit rod; 15. a slide block; 16. a motor; 17. a mounting base; 18. grinding wheel; 19. a protective cover; 20. a water spray nozzle; 21. a hose; 22. an air pump; 23. a support plate; 24. a hydraulic cylinder; 25. a vertical plate; 26. a cylinder; 27. a slide bar; 28. a push plate; 29. a clamping plate; 30. a motor II; 31. carrying the grating plates; 32. a water tank; 33. a drawer; 34. and (3) a water pump.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, an automobile injection molding piece corner polishing device comprises a base 1; the two sides of the upper part of the base 1 are fixedly provided with a bracket 2, the inner side of the top of the bracket 2 is provided with a sliding groove, the sliding groove is internally provided with a sliding plate 4 in a sliding way, the two sides of the two ends of the bottom of the sliding plate 4 are fixedly provided with a connecting rod 11, the right lower part of the sliding plate 4 is provided with a screw rod 13, the two ends of the screw rod 13 are provided with a sliding seat 12, one side of the lower part of the sliding seat 12 is provided with a hole, the two ends of the screw rod 13 are rotatably arranged in the sliding seat 12 through bearings, the screw rod 13 is provided with a sliding block 15 in a sliding way, one side of the sliding block 15 is provided with a threaded hole, the two sides of the threaded hole are provided with limit holes, one side of the top of the sliding block 15 is fixedly provided with a mounting seat 17 through a connecting plate, the connecting plate is provided with a communication hole, the inside of the mounting seat 17 is fixedly provided with a grinding machine, the front end of an output shaft of the grinding wheel 18 of the grinding machine is fixedly provided with a grinding wheel 18, one side of the mounting seat 17 is fixedly provided with a protective cover 19, one side of the protective cover 19 is fixedly provided with a water nozzle 20, one end of the water nozzle 20 is fixedly provided with a hose 21, one end of the hose 21 penetrates through a hole of the bottom of the sliding seat 12, the two sides of the base 1 are fixedly provided with a vertical plate 25, one side of the upper side of the sliding plate 25 is fixedly provided with a vertical plate 25, one side of the other side of the sliding plate 28 is fixedly provided with a sliding plate 28, one side of the front end of the sliding plate 28 is fixedly provided with a sliding plate 28, and the front side of the sliding plate 28 is fixedly provided with a front and fixed 28;

The center of the base 1 is provided with a mounting hole, a bearing grating plate 31 is fixedly mounted in the mounting hole, the center of the bottom of the base 1 is fixedly provided with a water tank 32, one side of the upper end of the water tank 32 is provided with a groove, a drawer 33 is slidably mounted in the groove, the bottom of the drawer 33 is provided with a filtering hole, one side of the bottom of the water tank 32 is provided with a water outlet, one side of the bottom of the water tank 32 is fixedly provided with a water pump 34, the water inlet end of the water pump 34 is fixedly mounted on the water outlet, and the water outlet end of the water pump 34 is fixedly connected with the other end of the hose 21; during operation, the existing grinding device does not carry out effective dust collection treatment on the chips and dust matters generated in the grinding process, the labor burden of follow-up cleaning staff is increased, when the grinding device is used, the automobile injection molding piece to be ground is placed on the bearing grid plate 31, the motor 5 is started, the rotating shaft 9 is driven to rotate, the longitudinal coordinates of the grinding wheel 18 are adjusted, the motor 16 is started, the screw rod 13 is driven to rotate, the sliding block 15 is driven to slide through the screw rod 13, the transverse coordinates of the grinding wheel 18 are adjusted, the grinding wheel 18 is enabled to move to the injection molding piece grinding starting position, the grinding machine is started, the grinding wheel 18 is driven to rotate by the grinding machine, the push plate 28 is driven by the starting cylinder 26 to clamp the clamping plates 29 to clamp two sides of the injection molding piece, the water pump 34 pumps water from the bottom of the water tank 32, the water nozzle 20 is pumped through the hose 21 to spray the grinding wheel 18, the hydraulic cylinder 24 is started, the grinding wheel 18 falls to the surface of the injection molding piece through the bearing grid plate 31 to grind, chips generated during grinding are washed by water flow, enter the water tank 32 through the bearing the grid plate 31, fall into the drawer 33, the effect of a filter hole at the bottom of the drawer 33 is filtered, the inside the drawer 33, and the filtered chips enter the water tank 32 to be recycled.

A motor 5 is fixedly arranged on one side of the center of the top of the sliding plate 4, a driving wheel 6 is fixedly arranged at the front end of a rotating shaft of the motor 5, a rotating shaft 9 is arranged on one side of the motor 5, fixed plates are arranged at two ends of the rotating shaft 9 and fixedly arranged on the upper part of the sliding plate 4, two ends of the rotating shaft 9 are rotatably arranged in the fixed plates through bearings, a rotating wheel 8 is fixedly arranged in the center of the rotating shaft 9, the driving wheel 6 and the rotating wheel 8 are cooperatively rotated through a belt 7, gears 10 are fixedly arranged at two ends of the rotating shaft 9, a toothed plate 3 is fixedly arranged at the top of the bracket 2, and teeth of the gears 10 are meshed with tooth grooves on the toothed plate 3; when the polishing device is used, the motor 5 is started to drive the driving wheel 6 to rotate, the driving wheel 6 drives the rotating wheel 8 to rotate through the belt 7, the rotating wheel 8 drives the rotating shaft 9 to rotate, the rotating shaft 9 drives the gears 10 at two ends to rotate, the gears 10 drive the sliding plate 4 to slide in the sliding groove at the top of the bracket 2 under the action of the toothed plate 3, and the sliding plate 4 drives the polishing wheel 18 to longitudinally move above the injection molding piece.

The two ends of the screw rod 13 are rotatably mounted on the sliding seat 12 through bearings, limiting rods 14 are arranged on two sides of the screw rod 13, two ends of the limiting rods 14 are fixedly mounted on the sliding seat 12, the middle of the sliding block 15 is slidably mounted on the screw rod 13 through threaded holes, two sides of the sliding block are slidably mounted on the limiting rods 14 through limiting holes, a motor 16 is fixedly mounted on one side of the sliding seat 12, and one end of the screw rod 13 penetrates through the sliding seat 12 and is fixedly connected with an output shaft of the motor 16; when the polishing device is used in operation, the motor 16 is started, the motor 16 drives the screw rod 13 to rotate, the screw rod 13 drives the sliding block 15 to slide left and right under the action of the limiting rod 14, and the sliding block 15 drives the lower polishing wheel 18 to slide left and right.

The two sides of the sliding seat 12 are provided with mounting holes, the sliding seat 12 is slidably mounted on the connecting rod 11 through the mounting holes, a supporting plate 23 is fixedly mounted at the bottom of the connecting rod 11, a hydraulic cylinder 24 is fixedly mounted at the center of the top of the supporting plate 23, and the front end of a piston rod of the hydraulic cylinder 24 is fixedly mounted at the bottom of the sliding seat 12; when the grinding device is used, when the grinding wheel 18 moves to the position above the grinding position of the injection molding piece, the hydraulic cylinder 24 is started, the hydraulic cylinder 24 pulls the sliding seat 12 to slide on the connecting rod 11 under the action of the supporting plate 23, and the sliding seat 12 drives the grinding wheel 18 to vertically fall down to grind the corner of the injection molding piece.

An air inlet hole is formed in one side of the protective cover 19 and is communicated with the communication hole, an air pump 22 is fixedly arranged on the upper part of the mounting seat 17, and the air outlet end of the air pump 22 is fixedly connected to the communication hole; during operation, when using grinding device, start air pump 22, air pump 22 pump air, pump into protection casing 19 through the venthole through the compression, blow grinding wheel 18 through protection casing 19 opening, blow the great granule splash that produces when polishing downwards, blow in water tank 32 through bearing grid board 31.

A second motor 30 is fixedly arranged on one side of the push plate 28, and the front end of a rotating shaft of the second motor 30 is fixedly connected with the shaft; during operation, when using grinding device, when finishing polishing to injection molding one side corner, start No. two motors 30, no. two motors 30 drive splint 29 rotation through the axle, splint 29 drive injection molding rotation, carry out the change and polish.

The working principle is that the existing grinding device does not carry out effective dust collection treatment on the chips and dust matters generated in the grinding process, the labor burden of follow-up cleaning staff is increased, when the grinding device is used, the automobile injection molding piece to be ground is placed on the bearing grid plate 31, the motor 5 is started, the rotating shaft 9 is driven to rotate, the longitudinal coordinates of the grinding wheel 18 are adjusted, the motor 16 is started, the screw rod 13 is driven to rotate, the sliding block 15 is driven to slide through the screw rod 13, the transverse coordinates of the grinding wheel 18 are adjusted, the grinding wheel 18 is enabled to move to the injection molding piece grinding starting position, the grinding machine is started, the grinding wheel 18 is driven to rotate by the grinding machine, the push plate 28 is driven by the starting cylinder 26 to clamp the clamping plates 29 to clamp two sides of the injection molding piece, the water pump 34 pumps water from the bottom of the water tank 32, the water nozzle 20 is pumped through the hose 21 to spray the grinding wheel 18, the hydraulic cylinder 24 is started, the chips generated during grinding enter the water tank 32 through the bearing grid plate 31 under the flushing of water flow, the action of the filtering holes at the bottom of the drawer 33 is fallen into the drawer 33, the water tank 32 is filtered, the chips are ground, the chips are reset, the injection molding piece is removed after the water tank is reset, and the injection molding piece is cleaned, and the injection molding piece is removed.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims

1. The utility model provides an automobile injection molding corner grinding device which characterized in that: comprises a base (1); the utility model discloses a hose water spraying hose, including base (1) and hose water spraying hose, including base (1), base, screw rod (12), connecting rod (11), connecting rod (13) and hose water spraying hose, support (2) are all fixed mounting in both sides of upper portion of base (1), spout has all been opened to support (2) top inboard, slide in the spout is provided with slide (4), slide (4) are all fixed mounting in both sides at slide (4) bottom both ends, be provided with lead screw (13) under slide (4), lead screw (13) both ends are provided with slide (12), open at lead screw (13) both ends through the bearing rotation in slide (12), slide (13) are provided with slider (15) in the last slip, slider (15) one side central authorities open threaded hole, threaded hole both sides all open and are provided with spacing hole, slider (15) top one side is through connecting plate fixed mounting has mount pad (17), open on the connecting plate has the intercommunicating pore, fixed mounting has the polisher in mount pad (17), output shaft front end fixed mounting is polished round (18), mount pad (17) one side fixed mounting has protection casing (19), protection casing (20) lower extreme one side fixed mounting has 20), hose water spraying hose (21) is provided with hose water spraying hose (25) on the base (1), an air cylinder (26) is fixedly arranged on one side of the upper end of the vertical plate (25), a sliding hole is formed in one side of the lower end of the vertical plate, a sliding rod (27) is slidably arranged in the sliding hole, a push plate (28) is fixedly arranged at the front end of a piston rod of the air cylinder (26), one end of the sliding rod (27) is fixedly arranged on one side of the lower part of the push plate (28), and a clamping plate (29) is rotatably arranged on the other side of the push plate (28) through a shaft;

The utility model discloses a water pump, including base (1), water pump (34), water tank (34), filter hole, water tank (33) are opened to base (1) central authorities open there is the mounting hole, mounting hole internal fixation has bear grid board (31), base (1) bottom central authorities fixed mounting have water tank (32), open in groove in water tank (32) upper end one side has drawer (33), open in drawer (33) bottom has the filtration hole, open on water tank (32) bottom one side has the delivery port, water tank (32) bottom one side fixed mounting has water pump (34), water pump (34) water inlet end fixed mounting is on the delivery port, water pump (34) water outlet end and hose (21) other end fixed connection.

2. The automobile injection molding corner polishing device according to claim 1, wherein: the utility model discloses a motor (5) is installed to slide (4) top central authorities one side fixed mounting, motor (5) axis of rotation front end fixed mounting has drive wheel (6), motor (5) one side is provided with pivot (9), pivot (9) both ends all are provided with fixed plate fixed mounting on slide (4) upper portion, pivot (9) both ends are all installed in the fixed plate through the bearing rotation, pivot (9) central authorities fixed mounting has rotation wheel (8), through belt (7) cooperation rotation between drive wheel (6) and rotation wheel (8), equal fixed mounting in pivot (9) both ends has gear (10), rack (2) top fixed mounting has pinion rack (3), tooth and tooth groove intermeshing on pinion rack (3).

3. The automobile injection molding corner polishing device according to claim 1, wherein: the utility model discloses a motor, including lead screw (13), slide (12), screw rod (13) both ends are all installed on slide (12) through the bearing rotation, both sides of screw rod (13) all are provided with gag lever post (14), equal fixed mounting in both ends of gag lever post (14) is on slide (12), screw hole slidable mounting is passed through on screw rod (13) in the middle of slider (15), both sides are passed through spacing hole slidable mounting on gag lever post (14), slide (12) one side fixed mounting has motor (16), slide (12) are run through to screw rod (13) one end, and with motor (16) output shaft fixed connection.

4. The automobile injection molding corner polishing device according to claim 1, wherein: the novel hydraulic lifting device is characterized in that mounting holes are formed in two sides of the sliding seat (12), the sliding seat (12) is slidably mounted on the connecting rod (11) through the mounting holes, a supporting plate (23) is fixedly mounted at the bottom of the connecting rod (11), a hydraulic cylinder (24) is fixedly mounted at the center of the top of the supporting plate (23), and the front end of a piston rod of the hydraulic cylinder (24) is fixedly mounted at the bottom of the sliding seat (12).

5. The automobile injection molding corner polishing device according to claim 1, wherein: an air inlet is formed in one side of the protective cover (19), the air inlet is communicated with the communication hole, an air pump (22) is fixedly mounted on the upper portion of the mounting seat (17), and the air outlet end of the air pump (22) is fixedly connected to the communication hole.

6. The automobile injection molding corner polishing device according to claim 1, wherein: and a second motor (30) is fixedly arranged on one side of the push plate (28), and the front end of a rotating shaft of the second motor (30) is fixedly connected with the shaft.