CN111482878A

CN111482878A - Polishing equipment for automobile manufacturing

Info

Publication number: CN111482878A
Application number: CN202010263080.5A
Authority: CN
Inventors: 邓珊
Original assignee: Dongguan Xiangfei Intelligent Equipment Technology Co Ltd
Current assignee: Dongguan Xiangfei Intelligent Equipment Technology Co Ltd
Priority date: 2020-04-06
Filing date: 2020-04-06
Publication date: 2020-08-04

Abstract

The invention discloses a polishing device for automobile manufacturing, which relates to the technical field of automobile manufacturing, in particular to a polishing platform, a polishing roller, a hanging rod and a pressing device, wherein sliding grooves are equidistantly formed in the bottom surface of the polishing platform, a transmission groove is formed in the front of the polishing platform, the polishing roller comprises a roller core and a polishing sleeve, an air bag is arranged between every two adjacent polishing rollers, rotating rods are respectively arranged on two sides of the top end of a first supporting rod, the hanging rod is arranged on the inner side of each rotating rod, a reference plate is arranged on the inner side of the top end of a second supporting rod, a sliding groove is formed in a sliding seat, the pressing device is arranged on the inner side of the sliding groove in a matched manner, the polishing device for automobile manufacturing is used for polishing automobile parts through the arrangement of the polishing roller, the polishing sleeve is convenient to disassemble and assemble, the parts can be polished in the rotating process, and can be used for polishing the parts in the process of polishing, it is also possible to transfer the component to the next position.

Description

Polishing equipment for automobile manufacturing

Technical Field

The invention relates to the technical field of automobile manufacturing, in particular to polishing equipment for automobile manufacturing.

Background

Automobile manufacturing is a mechanical manufacturing process for automobile production, in the field of automobile production, in order to improve the quality of each part of an automobile, each part of the automobile needs to be separately produced and processed, all parts are assembled together through a production line, the automobile can be put into detection after the whole automobile assembly is completed, and the automobile can be put into the market after the automobile is qualified through inspection.

In order to ensure the precision and the aesthetic property of the automobile parts, the automobile parts need to be polished, then are sprayed with paint, and finally are put into assembly.

When present automobile parts were polished, the piece of the in-process of polishing was difficult for clearing up, and more pieces are piled up on the platform of polishing, influenced the work of polishing easily for the precision of polishing descends, and the unable quick plane of polishing that breaks away from of spare part after polishing, the in-process of polishing that makes automobile parts has the too much problem of blank.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides polishing equipment for automobile manufacturing, which solves the problems in the background technology.

In order to achieve the purpose, the invention is realized by the following technical scheme: a polishing device for automobile manufacturing comprises a polishing platform, a polishing roller, a hanging rod and a pressing device, sliding grooves are formed in the bottom surface of the polishing platform at equal intervals, a base plate is slidably mounted below the polishing platform, a transmission groove is formed in the front of the polishing platform, the polishing roller is arranged on the upper surface of the polishing platform and comprises a roller core and a polishing sleeve, the polishing sleeve is wrapped outside the roller core, a roller shaft is fixed to the end center of the roller core and penetrates out of the groove of the transmission groove, a transmission belt is sleeved outside the end of the roller shaft, matching grooves are formed in the outer wall of the roller core at equal intervals, matching strips are fixed to the inner wall of the polishing sleeve at equal intervals, the matching strips are matched with the matching grooves in size, air pipe openings penetrate through the end of the polishing sleeve at equal intervals, air blowing holes are uniformly arranged on the outer wall of the polishing sleeve, and air bags are mounted between the adjacent polishing rollers, the grinding table is characterized in that first supporting rods are perpendicularly welded at two corners in the front of the upper surface of the grinding table, second supporting rods are perpendicularly welded at two corners in the rear of the upper surface of the grinding table, rotating rods are mounted on two sides of the top end of each first supporting rod, hanging rods are mounted on the inner sides of the rotating rods, a reference plate is mounted on the inner side of the top end of each second supporting rod, a sliding seat is fixed on the upper surface of the reference plate, a sliding groove is formed in the sliding seat, and a pressing device is mounted on the inner side of the sliding groove in a matched mode.

Optionally, the polishing sleeve is hollow, and the air pipe opening is communicated with the inner cavity of the polishing sleeve and the air blowing hole is communicated with the inner cavity of the polishing sleeve.

Optionally, the top ends of the first supporting rod and the second supporting rod are all connected with a rotating shaft in a clamped mode, the rotating shaft is rotatably connected with the first supporting rod through the rotating shaft, and the reference plate and the second supporting rod form a rotating structure through the rotating shaft.

Optionally, a shifting groove is formed in the inner side surface of the rotating rod, and two ends of the hanging rod are respectively in sliding fit with the shifting groove.

Optionally, telescopic pipes are fixed at equal intervals below the suspension rod, the bottom end of each telescopic pipe is perpendicularly welded with the lifting plate, steering rods are welded at two ends of the suspension rod and penetrate through the shifting grooves, and the rod ends of the steering rods are connected with steering cylinders.

Optionally, the pressing and holding device includes a pressing and holding rod and a moving plate, the end of the pressing and holding rod is matched with the sliding groove, the pressing and holding rod and the sliding groove are matched in size to form a sliding structure, the upper surface of the pressing and holding rod is provided with a cutting groove, and the moving plate is matched and connected with the cutting groove.

Optionally, the equal distance of both sides lower surface of movable plate is connected with air telescopic link perpendicularly, and air telescopic link's bottom all bonds and has the rubber disc, the equal equidistance of both sides upper surface of movable plate runs through there is the suction mouth, and the homogeneous phase intercommunication between suction mouth and the air telescopic link.

Optionally, the lug plates are welded on two sides of the lower surface of the front side of the reference plate, the electric push rods are installed on the lower surfaces of the lug plates, and the electric push rods are perpendicularly installed above two sides of the polishing table.

Optionally, the rear side of the polishing table is fixed with a supporting seat, hydraulic telescopic rods are vertically arranged on two sides of the upper surface of the supporting seat, and the top ends of the hydraulic telescopic rods are respectively connected to two sides of the lower surface of the rear side of the reference plate.

The invention provides polishing equipment for automobile manufacturing, which has the following beneficial effects:

1. this auto-manufacturing is with equipment of polishing, setting through the grinding roller, process of polishing to automobile parts, it is convenient to polish set dismouting, and can be at the pivoted in-process, process of polishing to parts, and at the in-process of polishing to parts, can also transfer transmission to next position on with parts, aerify in the cover inner chamber of polishing through the trachea, the air current outwards blows out in the hole of blowing, thereby can blow off and clear up the produced piece of polishing effectively, can not influence the processing of polishing, aerify to the gasbag through the gas supply line and can make the gasbag inflation, the expanded gasbag can hold up automobile parts, make it keep away from each grinding roller, so alright make automobile parts break away from the platform of polishing fast, in order to avoid eating the too much problem of material.

2. This polishing equipment for automobile manufacturing, through the groove that shifts, make the jib can shift position on the bull stick, flexible pipe makes and lifts the board and can reciprocate, through reciprocating lifting the board, make and lift the board and can lift the bottom of automobile parts, the steering column of jib tip uses as the slider structure of jib on the one hand, on the other hand then is used for connecting and turns to the cylinder, make under the rotation control that turns to the cylinder, the jib can accomplish the inclination and rotate, so that the lower surface shape or the inclination that the board can press close to parts better lifts.

3. This polishing equipment for automobile manufacturing, pressure hold the device and pass through the size cooperation between pressure holding rod and the slide groove, can carry out the round trip movement in the slide groove, and the main effect of pressing the device is from the top to automobile parts presses and holds fixedly, and the movable plate can be with the help of its cooperation with the grooving back and forth movement on pressing the holding rod, so can further remove the specific position of pushing down of regulation.

4. This automobile manufacturing is with equipment of polishing, suction mouth outer even pipeline to air exhaust equipment on, through the effect of bleeding, can extract the air in the air compression link, make the air compression link shrink because of atmospheric pressure descends, the air compression link area rubber disc of shrink shifts up together, the setting of rubber disc, make the air compression link bottom when contacting with automobile parts, difficult wearing and tearing, and the area of rubber disc than the air compression link bottom is bigger, so can be better push down automobile parts.

5. This automobile manufacturing is with equipment of polishing, otic placode pass through electric putter and the platform of polishing constitutes elevation structure, and electronic flexible through electric putter, can control the otic placode and reciprocate, so alright stimulate from top to bottom the front end of benchmark board, and hydraulic telescoping rod and supporting seat constitution elevation structure are passed through to the rear end of benchmark board, and the event is flexible through hydraulic telescoping rod's hydraulic pressure for the rear end of benchmark board also can reciprocate, combines electric putter's electronic flexible action, makes the benchmark board stabilize the incline.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the installation structure of the pressing device of the present invention;

FIG. 3 is a schematic view of the balloon of the present invention after inflation;

FIG. 4 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 5 is a schematic view of the structure of the grinding roller of the present invention;

FIG. 6 is a schematic view of a hanger bar construction of the present invention;

FIG. 7 is a schematic view of the pressing device of the present invention.

In the figure: 1. a polishing table; 2. a chute; 3. a substrate; 4. a transmission groove; 5. grinding a roller; 6. a roll core; 7. a roll shaft; 8. a drive belt; 9. a mating groove; 10. polishing the sleeve; 11. a mating strip; 12. an air pipe opening; 13. a gas blowing hole; 14. an air bag; 15. a first support bar; 16. a second support bar; 17. a rotating shaft; 18. a rotating rod; 19. a shifting groove; 20. a boom; 21. a telescopic pipe; 22. lifting the plate; 23. a steering lever; 24. a steering cylinder; 25. a reference plate; 26. a sliding seat; 27. a slide groove; 28. a pressing device; 29. pressing and holding the rod; 30. grooving; 31. moving the plate; 32. an air pressure telescopic rod; 33. a rubber disc; 34. a suction port; 35. an ear plate; 36. an electric push rod; 37. a supporting seat; 38. a hydraulic telescopic rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus are not to be construed as limiting the present invention, and furthermore, the terms "first", "second", "third", and the like are only used for descriptive purposes and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art will understand the specific meaning of the above terms in the present invention in specific situations.

Referring to fig. 1 to 7, the present invention provides a technical solution: a polishing device for automobile manufacturing comprises a polishing platform 1, polishing rollers 5, a suspender 20 and a pressing device 28, wherein sliding grooves 2 are formed in the bottom surface of the polishing platform 1 at equal intervals, a substrate 3 is slidably mounted below the polishing platform 1, the substrate 3 is slidably matched in the sliding grooves 2, so that the position of the substrate can move along the sliding grooves 2 at the bottom of the polishing platform 1, the gravity center position of the bottom of the polishing platform 1 can be moved and adjusted, the polishing platform 1 is more stable when placed horizontally, a transmission groove 4 is formed in front of the polishing platform 1, the polishing rollers 5 are arranged on the upper surface of the polishing platform 1, the polishing rollers 5 comprise roller cores 6 and polishing sleeves 10, the polishing sleeves 10 wrap the outside of the roller cores 6, roller shafts 7 are fixed at the centers of the ends of the roller cores 6, the roller shafts 7 penetrate out of the grooves of the transmission groove 4, a transmission belt 8 is sleeved outside the ends of the roller shafts 7, cooperation groove 9 has been seted up to the outer wall equidistance of roller core 6, the inner wall equidistance of the cover 10 of polishing is fixed with cooperation strip 11, and cooperation strip 11 and cooperation groove between 9 size cooperate, the tip equidistance of the cover 10 of polishing runs through has trachea mouth 12, and the outer wall of the cover 10 of polishing evenly runs through and is equipped with gas hole 13, the inside of the cover 10 of polishing is hollow structure, and between trachea mouth 12 and the inner chamber of the cover 10 of polishing, homogeneous phase intercommunication between gas hole 13 and the inner chamber of the cover 10 of polishing, install gasbag 14 between 5 adjacent of the roller of polishing.

The grinding roller 5 is arranged to grind automobile parts, the grinding sleeve 10 is greatly convenient to disassemble and assemble through the size matching between the matching groove 9 on the outer wall of the roller core 6 and the matching strip 11 on the inner wall of the grinding sleeve 10, the outer wall surface of the grinding sleeve 10 adopts the frosted texture, the parts can be ground in the rotating process, the grinding sleeve 10 is arranged outside the roller core 6 and is arranged equidistantly along the horizontal direction, so that the parts can be transferred and transmitted to the next position in the grinding process, the air pipe opening 12 is externally connected with an air pipe, the air pipe is used for inflating the inner cavity of the grinding sleeve 10, the air flow is blown out from the densely arranged air blowing holes 13, the chips generated by grinding can be effectively blown away and cleaned, the outer part of the grinding sleeve 10 is clean, and a little chips remained on the grinding process can not influence the grinding process, the air bag 14 is externally connected with an air supply pipeline, so that after the air bag 14 is inflated through the air supply pipeline, the automobile parts can be supported by the inflated air bag 14 and are far away from the polishing rollers 5, and therefore the automobile parts can be quickly separated from the polishing platform, and the problem of excessive material consumption is solved.

The two corners in front of the upper surface of the polishing table 1 are vertically welded with first supporting rods 15, the two corners behind the upper surface of the polishing table 1 are vertically welded with second supporting rods 16, rotating rods 18 are mounted on two sides of the top end of each first supporting rod 15, a hanging rod 20 is mounted on the inner side of each rotating rod 18, a reference plate 25 is mounted on the inner side of the top end of each second supporting rod 16, a sliding seat 26 is fixed on the upper surface of each reference plate 25, rotating shafts 17 are clamped on the top ends of the first supporting rods 15 and the second supporting rods 16, the rotating rods 18 are rotatably connected with the first supporting rods 15 through the rotating shafts 17, the reference plates 25 form a rotating structure with the second supporting rods 16 through the rotating shafts 17, the rotating rods 18 can rotate on the first supporting rods 15 through the rotating shafts 17, so that the angles of the rotating rods 18 can be adjusted, the reference plates 25 can also rotate on the second supporting rods 16 through the rotating shafts 17, and accordingly the angles of the reference plates 25 can be adjusted, the inner side surface of the rotating rod 18 is provided with a shifting groove 19, two ends of a suspension rod 20 are respectively in sliding fit with the shifting groove 19, the suspension rod 20 can move on the rotating rod 18 along the shifting groove 19, telescopic pipes 21 are fixed below the suspension rod 20 at equal intervals, lifting plates 22 are vertically welded at the bottom ends of the telescopic pipes 21, steering rods 23 are welded at two ends of the suspension rod 20, the steering rods 23 penetrate through the shifting groove 19, a rod end of each steering rod 23 is connected with a steering cylinder 24, the telescopic pipes 21 are arranged to enable the lifting plates 22 to move up and down, the lifting plates 22 can lift the bottoms of automobile parts by moving up and down the lifting plates 22, the steering rods 23 at the end parts of the suspension rods 20 are used as a slider structure of the suspension rods 20 and are matched in the shifting groove 19, so that the suspension rods 20 can move along the shifting groove 19 in position, and are used for connecting the steering cylinders 24, so that the boom 20 can perform a pitch rotation under the rotational control of the steering cylinder 24.

The sliding seat 26 is internally provided with a sliding groove 27, the inner side of the sliding groove 27 is provided with a pressing device 28 in a matching manner, the pressing device 28 comprises a pressing rod 29 and a moving plate 31, the end part of the pressing rod 29 is matched in the sliding groove 27, the pressing rod 29 and the sliding groove 27 are matched in size to form a sliding structure, the upper surface of the pressing rod 29 is provided with a cutting groove 30, the groove of the cutting groove 30 is connected with the moving plate 31 in a matching manner, the pressing device 28 can move back and forth in the sliding groove 27 through the size matching between the pressing rod 29 and the sliding groove 27, the pressing device 28 mainly has the function of pressing and fixing automobile parts from the upper part, the moving plate 31 can move back and forth on the pressing rod 29 by virtue of the matching between the pressing rod 29 and the cutting groove 30, so that the specific pressing position can be further moved and adjusted, the lower surfaces on two sides of the moving plate 31 are vertically connected with air pressure telescopic rods 32 at equal distances, and the bottom of atmospheric pressure telescopic link 32 all bonds there is rubber disc 33, the impartial distance of both sides upper surface of movable plate 31 runs through there is suction opening 34, and homogeneous phase intercommunication between suction opening 34 and the atmospheric pressure telescopic link 32, suction opening 34 outer connecting tube is to on the air exhaust equipment, through the air extraction effect, can extract the air in the atmospheric pressure telescopic link 32, make atmospheric pressure telescopic link 32 shrink because of atmospheric pressure descends, the atmospheric pressure telescopic link 32 of shrink takes rubber disc 33 to shift up together, the setting of rubber disc 33, make atmospheric pressure telescopic link 32 bottom when contacting with automobile parts, be difficult for wearing and tearing, and rubber disc 33 is bigger than the area of atmospheric pressure telescopic link 32 bottom, so can be better push down automobile parts.

Both sides of the lower surface of the front side of the reference plate 25 are welded with the ear plates 35, the lower surfaces of the ear plates 35 are respectively provided with an electric push rod 36, the electric push rods 36 are vertically arranged above both sides of the polishing table 1, the ear plates 35 and the polishing table 1 form a lifting structure through the electric push rods 36, the ear plates 35 can be controlled to move up and down through electric extension and retraction of the electric push rods 36, so that the front end of the reference plate 25 can be pulled up and down, the rear side of the polishing table 1 is fixed with a support seat 37, both sides of the upper surface of the support seat 37 are vertically provided with hydraulic telescopic rods 38, the top ends of the hydraulic telescopic rods 38 are respectively connected to both sides of the lower surface of the rear side of the reference plate 25, the rear end of the reference plate 25 and the support seat 37 form a lifting structure through the hydraulic telescopic rods 38, so that the rear end of the reference plate 25 can also move up and down, so that the reference plate 25 is stably deflected.

To sum up, when the polishing device for automobile manufacturing is used, firstly, the telescopic pipe 21 is required to be stretched to a proper length, then the steering cylinder 24 is used for controlling the rotation of the steering rod 23, so that the suspension rod 20 integrally deflects to a certain angle to fit the bottom surface shape of an automobile part, then the automobile part is erected on the lifting plate 22, then the air suction device externally connected with the suction port 34 is opened, the air pressure telescopic rod 32 is controlled to stretch through air suction and exhaust, so that the rubber disc 33 at the bottom end of the air pressure telescopic rod 32 can be just tightly pressed on the upper surface of the automobile part, at the moment, the upper side and the lower side of the automobile part are tightly pressed, the automobile part integrally moves down onto the polishing roller 5, the transmission belt 8 connected with the end part of the polishing roller 5 is driven by the motor to operate, so that the polishing rollers 5 rotate at the same speed and in the same direction, and the polishing sleeve 10 on the polishing roller 5 polishes the, and the roller 5 of polishing is at the in-process of polishing to the spare part, can also transfer the spare part and transmit to next position on, trachea mouth 12 external trachea, aerify in to the cover 10 inner chamber of polishing through the trachea, make the air current outwards blow out from the hole 13 of blowing that densely sets up, thereby can blow off and clear up the produced piece of polishing effectively, and 14 external gas supply lines of gasbag, so aerify to gasbag 14 through gas supply lines and make gasbag 14 inflation, expanded gasbag 14 can hold up automobile parts, make it keep away from each roller 5 of polishing, so alright make automobile parts break away from the platform of polishing fast, in order to avoid eating too much problem.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides an automobile manufacturing is with equipment of polishing, includes platform (1) of polishing, grinding roller (5), jib (20) and pressure and hold device (28), its characterized in that: the grinding machine is characterized in that sliding grooves (2) are formed in the bottom face of the grinding table (1) at equal intervals, a base plate (3) is arranged below the grinding table (1) in a sliding mode, a transmission groove (4) is formed in the front of the grinding table (1), grinding rollers (5) are arranged on the upper surface of the grinding table (1) in a arrayed mode and comprise roller cores (6) and grinding sleeves (10), the grinding sleeves (10) are wrapped outside the roller cores (6), roller shafts (7) are fixed at the centers of the end portions of the roller cores (6), the roller shafts (7) penetrate out of the transmission grooves (4) outwards, transmission belts (8) are sleeved outside the end portions of the roller shafts (7), matching grooves (9) are formed in the outer wall of the roller cores (6), matching strips (11) are fixed on the inner wall of the grinding sleeves (10) at equal intervals, and the matching strips (11) are matched with the matching grooves (9) in size, the end part of the polishing sleeve (10) is penetrated with air pipe orifices (12) at equal intervals, and the outer wall of the polishing sleeve (10) is uniformly penetrated with air blowing holes (13), an air bag (14) is arranged between the adjacent grinding rollers (5), first supporting rods (15) are vertically welded at two corners in front of the upper surface of the grinding table (1), and two corners at the rear of the upper surface of the polishing table (1) are vertically welded with second support rods (16), the two sides of the top end of the first supporting rod (15) are both provided with a rotating rod (18), a hanging rod (20) is arranged at the inner side of the rotating rod (18), a reference plate (25) is arranged at the inner side of the top end of the second supporting rod (16), and a sliding seat (26) is fixed on the upper surface of the reference plate (25), a sliding groove (27) is formed in the sliding seat (26), and a pressing and holding device (28) is installed on the inner side of the sliding groove (27) in a matching mode.

2. The grinding apparatus for automobile manufacturing according to claim 1, characterized in that: the polishing sleeve (10) is hollow, and the air pipe opening (12) is communicated with the inner cavity of the polishing sleeve (10) and the air blowing hole (13) is communicated with the inner cavity of the polishing sleeve (10).

3. The grinding apparatus for automobile manufacturing according to claim 1, characterized in that: the top of first bracing piece (15) and second bracing piece (16) all the joint have pivot (17), and pivot (18) rotate with first bracing piece (15) through pivot (17) and be connected to benchmark board (25) constitute revolution mechanic through pivot (17) and second bracing piece (16).

4. The grinding apparatus for automobile manufacturing according to claim 1, characterized in that: the inner side surface of the rotating rod (18) is provided with a shifting groove (19), and two ends of the hanging rod (20) are respectively in sliding fit in the shifting groove (19).

5. The grinding apparatus for automobile manufacturing according to claim 4, characterized in that: the telescopic pipes (21) are fixed to the lower portion of the suspension rod (20) at equal intervals, the bottom ends of the telescopic pipes (21) are perpendicularly welded with the lifting plate (22), steering rods (23) are welded to the two ends of the suspension rod (20), the steering rods (23) penetrate through the shifting grooves (19), and the rod ends of the steering rods (23) are connected with steering cylinders (24).

6. The grinding apparatus for automobile manufacturing according to claim 1, characterized in that: the pressing and holding device (28) comprises a pressing and holding rod (29) and a moving plate (31), the end portion of the pressing and holding rod (29) is matched in the sliding groove (27), the pressing and holding rod (29) and the sliding groove (27) are matched in size to form a sliding structure, a cutting groove (30) is formed in the upper surface of the pressing and holding rod (29), and the moving plate (31) is connected in the groove of the cutting groove (30) in a matched mode.

7. The grinding apparatus for automobile manufacturing according to claim 6, characterized in that: the equal distance of both sides lower surface of movable plate (31) is connected with air telescopic link (32) perpendicularly, and the bottom of air telescopic link (32) all bonds and has rubber disc (33), the equal equidistance of both sides upper surface of movable plate (31) has run through suction mouth (34), and homogeneous phase intercommunication between suction mouth (34) and air telescopic link (32).

8. The grinding apparatus for automobile manufacturing according to claim 1, characterized in that: ear plates (35) are welded on the two sides of the lower surface of the front side of the reference plate (25), electric push rods (36) are installed on the lower surfaces of the ear plates (35), and the electric push rods (36) are perpendicularly arranged above the two sides of the grinding table (1).

9. The grinding apparatus for automobile manufacturing according to claim 8, characterized in that: the rear side of the polishing platform (1) is fixed with a supporting seat (37), two sides of the upper surface of the supporting seat (37) are vertically provided with hydraulic telescopic rods (38), and the top ends of the hydraulic telescopic rods (38) are respectively connected to two sides of the lower surface of the rear side of the reference plate (25).