CN115533747A

CN115533747A - Automobile wheel hub processing positioning device with adjustable interval

Info

Publication number: CN115533747A
Application number: CN202211254632.1A
Authority: CN
Inventors: 陶永昌; 张新林; 彭兵阳; 范成强
Original assignee: Jiangsu Meida Aluminum Co ltd
Current assignee: Jiangsu Meida Aluminum Co ltd
Priority date: 2022-10-13
Filing date: 2022-10-13
Publication date: 2022-12-30

Abstract

The invention relates to the technical field of automobile hub machining, in particular to a positioning device for machining an automobile hub with an adjustable distance. The technical scheme comprises the following steps: the cabinet body and operation panel, the outside at operation panel top is provided with the constant head tank, and the both sides fixed mounting of operation panel bottom has driving motor, driving motor's output fixedly connected with threaded rod, and the outside of threaded rod rotates and installs the slide, and the top fixed mounting of slide has the actuating lever that runs through the operation panel. According to the invention, through the combination of various structures, the device can automatically rotate and adjust after half of the hub is machined, so that workers can conveniently machine and process the other half of the hub, the manual rotation burden of the workers is reduced, dust generated when the workers grind and polish the hub can be extracted and purified, the condition that the dust flows into a working environment to cause pollution is avoided, the device is more convenient to use, and the application range is expanded.

Description

Positioning device is used in automobile wheel hub processing with adjustable interval

Technical Field

The invention relates to the technical field of automobile hub machining, in particular to a positioning device for automobile hub machining with adjustable spacing.

Background

Wheel hub (Car Rim) is the position of wheel center installation axletree, also the "wheel Rim" or "steel ring" of people's convention, wheel hub is stained with the filth very easily, if long-time unclean, probably corroded the deformation, so produce the potential safety hazard, therefore need pay special attention to the maintenance of wheel hub, automobile wheel hub adds man-hour and needs to fix a position the processing to it, current positioner structure is comparatively simple, mostly can only play fixed function to wheel hub, it needs to rotate the regulation to accomplish when the wheel hub front side processing that the staff fixed a position on the device, current positioner does not have the function of carrying out the automatic rotation regulation to wheel hub during the operation, can only pass through the mode that the staff moves the rotation through the manual, can bring great pressure to the health when the staff moves wheel hub rotation manually, long-time manual rotation can cause the condition of staff's waist damage simultaneously, therefore we provide a distance adjustable positioner for automobile wheel hub processing.

Through retrieval, patent publication No. CN209239863U discloses a positioner for automobile wheel hub processing, including telescopic link, spud pile, base and cylinder, the surface all has seted up the screw hole all around of base, and the inboard screw thread movable mounting of screw hole has the spud pile, the bottom of spud pile has a supporting baseplate through bearing movable mounting, there is the sucking disc bottom of supporting baseplate through bolt fixed mounting, the top welding of base has the lift case, there is the cylinder bottom of lift case through bolt fixed mounting inside the base, the output of cylinder runs through base fixed mounting has the telescopic link, the output welding of telescopic link has the location platform, CN 2099863U is comparatively simple in the structure of in the use in the current technique, does not possess the function of automatic rotation regulation when the staff need to carry out the man-hour to the rear side of wheel hub on the device with man-hour, and the staff can only remove the rotation to wheel hub through manual, because of wheel hub is heavier, the staff removes to wheel hub and can bring great pressure for the health when carrying out the rotation to wheel hub manually, simultaneously the staff who carries out the health purification that the staff that the waist damage can cause the circumstances, and the staff of this pollution of the environment that the staff's dust extraction can be brought, thereby the problem of the work of the adjustable dust can be solved.

Disclosure of Invention

The invention aims to provide a positioning device for machining an automobile hub with an adjustable distance, and aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an interval-adjustable positioning device for machining of automobile wheel hubs, includes the cabinet body and operation panel, the outside at operation panel top is provided with the constant head tank, and the both sides fixed mounting of operation panel bottom has driving motor, driving motor's output fixed connection has the threaded rod, and the outside of threaded rod rotates and installs the slide, the top fixed mounting of slide has the actuating lever that runs through the operation panel, and the outside fixed mounting of actuating lever has the positioning seat, the bottom fixed mounting of operation panel has the closing plate, and the bottom fixed mounting of closing plate has two sets of first push rods, the output of first push rod runs through closing plate fixed mounting and has the seat that goes up and down, and the central point department fixed mounting of seat bottom that goes up and down has a rotating electrical machines, the output of rotating electrical machines runs through closing plate and operation panel fixed connection lifting plate, the rear side fixed mounting of operation panel has the mounting panel, and the top fixedly connected with swash plate of mounting panel, the front fixed mounting of swash plate has the suction hood, and the back fixed mounting of suction hood has the connecting pipe, the rear side fixed mounting of the internal portion of cabinet has the smoke and dust purifier, and the internal portion of cabinet has two sets of second push rod.

By using the positioning device with the adjustable space for processing the automobile hub, the operating platform can place and support the hub, the positioning groove is arranged on the outer side of the top of the operating platform and can position the position of the hub when the hub is placed, so that the device can support and fix the hub placed on the top of the operating platform, two groups of driving motors are fixedly arranged on two sides of the bottom of the operating platform, the output ends of the driving motors are fixedly connected with threaded rods, slide seats are rotatably arranged outside the threaded rods, driving rods penetrating through the operating platform are fixedly arranged on the top of the slide seats, positioning seats are fixedly arranged on the outer sides of the driving rods, the driving motors drive the threaded rods to rotate so as to move the slide seats, the driving rods and the positioning seats left and right, the positioning seats can support and process the inner wall of the hub placed on the top of the operating platform through outward expansion movement, and the space can be adjusted and controlled through contraction and outward expansion of the same positioning seats, the outer wall of the positioning seat is of an arc structure, so that the stress area when the positioning seat is in supporting contact with the inner wall of the hub is increased, and the condition that the positioning seat is sunken or deformed when the inner wall of the hub is supported is avoided, the bottom of the operating platform is fixedly provided with the sealing plate, the bottom of the sealing plate is fixedly provided with two groups of first push rods, the output end of each first push rod penetrates through the sealing plate and is fixedly provided with the lifting seat, the central position of the bottom of each lifting seat is fixedly provided with the rotating motor, the output end of the rotating motor penetrates through the operating platform and is fixedly connected with the lifting plate, the rotating motor and the lifting plate can be lifted by the first push rods through stretching, the hub at the top of the operating platform can be lifted by the lifting plate, meanwhile, the rotating motor can drive the lifting plate and the hub to rotate and adjust, and therefore, a worker can conveniently process the rear side when the hub is placed, the back fixed mounting of operation panel has the mounting panel, and the top fixedly connected with swash plate of mounting panel, and the front fixed mounting of swash plate has the suction hood, the back fixed mounting of suction hood has the connecting pipe, the rear side fixed mounting of the internal portion of cabinet has the smoke and dust clarifier, the smoke and dust clarifier passes through input mechanism and is connected with the connecting pipe, thereby can inhale in the smoke and dust clarifier through the smoke and dust that the staff produced when polishing the wheel hub of staff location on the device, the smoke and dust clarifier can carry out purification operation to the inhaled smoke and dust of suction hood, avoid flowing into the circumstances that operational environment caused the pollution to the smoke and dust that produces when polishing the wheel hub, the top fixed mounting of the internal portion of cabinet has the second push rod, the output and the closing plate fixed connection of second push rod, thereby can adjust the height of operation panel through the extension and the shrink of second push rod, the staff of being convenient for carries out regulation control to the operation height of device according to the actual circumstances.

Preferably, a frequency converter is fixedly mounted on the front side inside the cabinet body, and a PLC controller is fixedly mounted on one side of the frequency converter. The frequency converter passes through the wire and is connected with driving motor to can adjust driving motor's rotational speed through the frequency converter, can carry out regulation control to the translation rate of positioning seat through controlling driving motor's rotational speed, the PLC controller can be controlled when the device operation.

Preferably, the outer side of the positioning seat is attached with a rubber pad, and a plurality of groups of anti-skid protrusions are arranged on the outer side of the rubber pad at equal intervals. The rubber mat can cushion and protect when the positioning seat leads to the fact the location to wheel hub inside, has avoided the positioning seat to lead to the fact the inside condition that the indentation appears of wheel hub, and the non-slip raised frictional force that has increased the rubber mat outer wall simultaneously.

Preferably, an input pipe is fixedly installed at the top of the smoke purifier, and one end of the input pipe is fixedly connected with a telescopic pipe. The input pipe and the telescopic pipe are convenient for the smoke dust purifier to be connected with the connecting pipe, and the length of the input pipe can be adjusted through the telescopic pipe.

Preferably, an illuminating lamp is fixedly mounted above the dust hood, and a protective pad is fixedly mounted on the front side and the rear side of the top of the lifting plate. The light can throw light on the operation to the device, and the bottom that the protection was filled up and to be supported lifting to wheel hub at the lifting board simultaneously protects, has avoided the inside condition of fish tail wheel hub.

Preferably, a protection pad is attached to the inside of the positioning groove, and a plurality of groups of supporting protrusions are arranged on the top of the protection pad at equal intervals. The bottom when the protection pad can place in the constant head tank wheel hub carries out the elastic support protection, supports the arch simultaneously and has increased the stability of protection pad when supporting the protection to wheel hub.

Preferably, an operating button is fixedly installed on one side of the front surface of the operating platform, and an indicating lamp is fixedly installed above the operating button. The operating button is convenient for the operating control of the device when the device is used by the staff, and can indicate the running state of the device through the indicating lamp.

Preferably, the front face of the cabinet body is movably provided with a maintenance door, and the front face of the maintenance door is fixedly provided with a safety lock. The maintenance door can be closed and sealed on the front face of the cabinet body, so that workers can overhaul and maintain the inside of the device in the later period, and meanwhile, the maintenance door can be locked when closed through the safety lock, and the stability of the maintenance door when closed is improved.

Preferably, the periphery of the bottom of the cabinet body is rotatably provided with a supporting rod, and the bottom of the supporting rod is fixedly provided with a supporting seat. The bottom of the device when being placed and used can be supported by the support rod and the support seat.

Preferably, a back plate is fixedly mounted below the back of the cabinet body, a plurality of groups of vent holes are formed in the back face of the back plate at equal intervals, and a sealing gasket is attached to the outer side of the front face of the back plate. The backplate can carry out closed processing to the back of the cabinet body, and the worker personnel of being convenient for through the dismantlement to the backplate are dismantled the maintenance to the smoke and dust clarifier simultaneously, and the ventilation hole can be to carrying out ventilation cooling when the smoke and dust clarifier operation, and the sealed leakproofness and the stability of filling up when having increased the installation of backplate.

Compared with the prior art, the invention has the beneficial effects that:

1. through setting up operation panel and constant head tank, driving motor, the threaded rod, the slide, the positioning seat, first push rod and lifting seat, rotating electrical machines, the cooperation of lifting board, the operation panel can support the wheel hub and place, can fix a position when placing on the operation panel wheel hub through the constant head tank simultaneously, driving motor drives the threaded rod and rotates and can spend slide and positioning seat and control, thereby can support the wheel hub inner wall of placing on the operation panel through the positioning seat, the outer wall of positioning seat adopts the arc structure simultaneously, the atress area when having increased supporting seat and the contact of wheel hub inner wall and supporting, the condition of wheel hub inner wall sunken or deformation has been avoided leading to the fact because of the support dynamics is too big, simultaneously first push rod can be to the lifting seat through the extension, the lifting board rises, the lifting board can lift the wheel hub at operation panel top through rising, rotating electrical machines can drive the lifting board and rotate with wheel hub simultaneously, thereby the automatic function of carrying out rotation regulation to the wheel hub has been realized, the staff of placing the operation panel top is convenient for the rear side of wheel hub carries out the processing.

2. Through setting up suction hood and smoke and dust clarifier, the mounting panel, the swash plate, the cooperation of second push rod, the swash plate can be installed fixedly to the suction hood, simultaneously can support the swash plate through the mounting panel, also can block the dust that produces when the staff polishes the wheel hub of fixing a position on the device, the condition at the device back of the inflow has been avoided, the suction hood is connected with the smoke and dust clarifier through the pipeline, thereby can extract through smoke and dust clarifier and suction hood and the smoke and dust that produces when the staff polishes the wheel hub of fixing a position on the device and purify, avoid or reduce the condition that the smoke and dust caused the pollution in flowing into staff's the operational environment, the second push rod can rise and descend the regulation to the operation panel through extending simultaneously, be convenient for the staff adjusts the operation height of device according to the circumstances of reality, make the device more convenient to use, application scope nature has been enlarged.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic view of the raised structure of the operation table of the present invention;

FIG. 3 is a bottom view of the operation table of the present invention;

FIG. 4 is a schematic view of the internal structure of the cabinet of the present invention;

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

FIG. 6 is a schematic view of a rotary electric machine mounting structure of the present invention;

fig. 7 is a schematic structural diagram of the driving motor of the present invention.

In the figure: 1. a supporting base; 101. a support bar; 2. a cabinet body; 3. maintaining the door; 301. a safety lock; 4. an operation table; 401. sealing plates; 402. positioning a groove; 5. an operation button; 501. an indicator light; 6. a protection pad; 601. a support boss; 7. lifting the plate; 701. a protective pad; 8. positioning seats; 801. a drive rod; 802. a slide base; 9. a rubber pad; 901. anti-skid protrusions; 10. mounting a plate; 1001. a sloping plate; 11. a dust hood; 1101. a connecting pipe; 12. a lighting lamp; 13. a drive motor; 1301. a threaded rod; 14. a lifting seat; 15. a rotating electric machine; 16. a first push rod; 17. a frequency converter; 1701. a PLC controller; 18. a smoke purifier; 1801. an input tube; 1802. a telescopic pipe; 19. a second push rod; 20. a back plate; 2001. a vent hole; 2002. and a gasket.

Detailed Description

The technical solution of the present invention is further explained with reference to the accompanying drawings and specific embodiments.

Example one

As shown in fig. 1, 2, 3, 4, 5, 6 and 7, the positioning device for machining an automobile hub with adjustable spacing provided by the invention comprises a cabinet 2 and an operation table 4, wherein a positioning groove 402 is arranged on the outer side of the top of the operation table 4, driving motors 13 are fixedly arranged on two sides of the bottom of the operation table 4, output ends of the driving motors 13 are fixedly connected with threaded rods 1301, sliding seats 802 are rotatably arranged outside the threaded rods 1301, driving rods 801 penetrating through the operation table 4 are fixedly arranged on the top of the sliding seats 802, positioning seats 8 are fixedly arranged on the outer sides of the driving rods 801, a sealing plate 401 is fixedly arranged on the bottom of the operation table 4, two groups of first push rods 16 are fixedly arranged on the bottom of the sealing plate 401, output ends of the first push rods 16 penetrate through the sealing plate 401 and are fixedly arranged with lifting seats 14, rotary motors 15 are fixedly arranged at the central positions of the bottoms of the lifting seats 14, output ends of the rotary motors 15 penetrate through the sealing plate 401 and the operation table 4 and are fixedly connected with a lifting plate 7, a mounting plate 10 is fixedly arranged on the rear side of the operation table 4, a mounting plate 10 is fixedly arranged on the top of the inclined plate 1001, a dust hood 11 is fixedly arranged on the rear side of the dust hood, and a second dust hood 18 is arranged inside the cabinet 2.

The working principle of the positioning device for machining the automobile hub with the adjustable distance based on the embodiment 1 is as follows: operation panel 4 can place the support to wheel hub, and the outside at 4 tops of operation panel is provided with constant head tank 402, and constant head tank 402 can fix a position when placing wheel hub to the device of being convenient for supports fixedly to the wheel hub that 4 tops of operation panel were placed, and the both sides fixed mounting of 4 bottoms of operation panel has two sets of driving motor 13, and driving motor 13's model can be: 130ST-M06025 type, the output fixedly connected with threaded rod 1301 of driving motor 13, and the outside of threaded rod 1301 rotates and installs slide 802, the top fixed mounting of slide 802 has actuating lever 801 that runs through operation panel 4, and the outside fixed mounting of actuating lever 801 has positioning seat 8, driving motor 13 drives threaded rod 1301 and rotates and can remove about slide 802 and actuating lever 801, positioning seat 8 removes, positioning seat 8 can support the wheel hub inner wall of placing at operation panel 4 top through expanding outward and handle, with positioning seat 8 can carry out regulation control to the interval through shrink and expand outward, positioning seat 8 outer wall adopts the arc structure, the atress area when having increased positioning seat 8 and wheel hub inner wall support contact, the condition that causes sunken or warp when having avoided positioning seat 8 to wheel hub inner wall to support, the bottom fixed mounting of operation panel 4 has closing plate 401, and the bottom fixed mounting of closing plate 401 has two sets of first push rods 16, the model of first push rod 16 can be: ju-TGE type, the output of first push rod 16 run through sealing plate 401 fixed mounting have lift seat 14, and the central point department of 14 bottoms of lift seat fixed mounting have rotating electrical machines 15, and the model of rotating electrical machines 15 can be: 130ST-M06025 type, and the output end of rotating electrical machines 15 runs through 4 fixedly connected with lifting plate 7 of operation panel, first push rod 16 can be to lifting plate 7 and rotating electrical machines 15 through the extension, lifting plate 7 raises, the wheel hub at 4 tops of operation panel can be lifted through lifting plate 7, rotating electrical machines 15 can drive lifting plate 7 and wheel hub and carry out rotation regulation simultaneously, thereby be convenient for the staff to carry out processing treatment to the rear side when the wheel hub is placed, the back fixed mounting of operation panel 4 has mounting panel 10, and the top fixedly connected with swash plate 1001 of mounting panel 10, and the positive fixed mounting of swash plate 1001 has suction hood 11, the back fixed mounting of suction hood 11 has connecting pipe 1101, the inside rear side fixed mounting of cabinet body 2 has smoke and dust clarifier 18, the model of smoke and dust clarifier 18 can be: LK-01MINI type, smoke and dust clarifier 18 leads to input mechanism and is connected with connecting pipe 1101 to can inhale the smoke and dust clarifier 18 through dust hood 11 when the staff polishes the wheel hub of location on the device in, smoke and dust clarifier 18 can purify the operation to the smoke and dust that dust hood 11 inhaled, the condition that the smoke and dust that produces when avoiding polishing the wheel hub flows into operational environment and causes the pollution, the inside top fixed mounting of cabinet body 2 has second push rod 19, the model of second push rod 19 can be: YS-L35-24-50-14-2300, the output end of the second push rod 19 is fixedly connected with the sealing plate 401, so that the height of the operating platform 4 can be adjusted through the extension and contraction of the second push rod 19, and workers can adjust and control the working height of the device according to actual conditions.

Example two

As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, and fig. 7, compared with the first embodiment, the positioning device for machining an automobile hub with an adjustable distance provided by the present invention further includes: the front side fixed mounting of the inside of the cabinet body 2 has a converter 17, and one side fixed mounting of converter 17 has a PLC controller 1701, rubber pad 9 is attached to the outside of positioning seat 8, and the outside equidistance of rubber pad 9 is provided with the protruding 901 of multiunit antiskid, the top fixed mounting of smoke and dust clarifier 18 has an input tube 1801, and the one end fixedly connected with flexible pipe 1802 of input tube 1801, the top fixed mounting of suction hood 11 has light 12, and the front side and the rear side fixed mounting at lifting plate 7 top have protection pad 701, the inside of constant head tank 402 is attached with protection pad 6, and the top equidistance of protection pad 6 is provided with multiunit support protrusion 601, the positive one side fixed mounting of operation panel 4 has operating button 5, and the top fixed mounting of operating button 5 has pilot lamp 501, the front movable mounting of the cabinet body 2 has maintenance door 3, and the front fixed mounting of maintenance door 3 has sealing gasket 301, the rotation all around of the cabinet body 2 bottom has support rod 101, and the bottom fixed mounting of support rod 101 has supporting seat 1, the below fixed mounting of the cabinet body 2 back board 20, and the back board 20 is provided with the outside equidistance 2002 of multiunit ventilation hole.

In this embodiment, as shown in fig. 4, the frequency converter 17 is connected to the driving motor 13 through a wire, so that the rotational speed of the driving motor 13 can be adjusted by the frequency converter 17, the moving speed of the positioning seat 8 can be adjusted and controlled by controlling the rotational speed of the driving motor 13, the PLC controller 1701 can control the device during operation, and the type of the frequency converter 17 can be: type SKI600, the model number of the PLC controller 1701 may be: s7-200 type; as shown in fig. 1, 2, 4 and 7, the rubber pad 9 can perform buffering protection when the positioning seat 8 positions the inside of the hub, so that the phenomenon that the inside of the hub is indented due to the positioning seat 8 is avoided, and meanwhile, the anti-skid protrusions 901 increase the friction force of the outer wall of the rubber pad 9; as shown in fig. 5, the input tube 1801 and the extension tube 1802 facilitate the connection of the soot scrubber 18 with the connection tube 1101, while the length of the input tube 1801 can be adjusted by the extension tube 1802; as shown in fig. 1, 2 and 4, the lighting lamp 12 can illuminate the device, and the protective pad 701 can protect the bottom of the hub when the lifting plate 7 supports and lifts the hub, so that the inner part of the hub is prevented from being scratched; as shown in fig. 1, 2 and 4, the protection pad 6 can elastically support and protect the bottom of the hub when the hub is placed in the positioning groove 402, and the support protrusion 601 increases the stability of the protection pad 6 when the hub is supported and protected; as shown in fig. 1, 2 and 4, the operation button 5 facilitates the operation control of the device by the staff during use, and can indicate the running state of the device through the indicator lamp 501; as shown in fig. 1 and 2, the maintenance door 3 can close and seal the front of the cabinet body 2, so that the inside of the device can be conveniently overhauled and maintained by workers at a later stage, and meanwhile, the maintenance door 3 can be locked when being closed through the safety lock 301, so that the stability of the maintenance door 3 when being closed is increased; as shown in fig. 1, 2 and 5, the supporting rod 101 is matched with the supporting seat 1 to support the bottom of the device when the device is placed for use, as shown in fig. 5, the back plate 20 can close the back of the cabinet body 2, meanwhile, workers can detach and maintain the smoke purifier 18 conveniently by detaching the back plate 20, the ventilation hole 2001 can ventilate and dissipate heat during operation of the smoke purifier 18, and the sealing gasket 2002 increases the sealing performance and stability of the back plate 20 during installation.

The above embodiments are only some preferred embodiments of the present invention, and many alternative modifications and combinations of the above embodiments may be made by those skilled in the art based on the technical solution of the present invention and the related teachings of the above embodiments.

Claims

1. The utility model provides a positioner is used in automobile wheel hub processing with adjustable interval, includes the cabinet body (2) and operation panel (4), its characterized in that: the outer side of the top of the operating platform (4) is provided with a positioning groove (402), two sides of the bottom of the operating platform (4) are fixedly provided with driving motors (13), an output end of each driving motor (13) is fixedly connected with a threaded rod (1301), a sliding seat (802) is installed on the outer portion of the threaded rod (1301) in a rotating mode, a driving rod (801) penetrating through the operating platform (4) is fixedly installed at the top of the sliding seat (802), a positioning seat (8) is fixedly installed on the outer side of the driving rod (801), a sealing plate (401) is fixedly installed at the bottom of the operating platform (4), two groups of first push rods (16) are fixedly installed at the bottom of the sealing plate (401), an output end of each first push rod (16) penetrates through the sealing plate (401) and is fixedly installed with a lifting seat (14), a rotating motor (15) is fixedly installed at the central position of the bottom of the lifting seat (14), an output end of the rotating motor (15) penetrates through the sealing plate (401) and the operating platform (4) and is fixedly connected with a lifting plate (7), a rear side of the operating platform (4) is fixedly installed with a dust collection cover (11), a dust collection cover (11) is fixedly installed at the front side of the inclined plate (1001) and is installed at the back of the dust collection cover (1001), the rear side of the interior of the cabinet body (2) is fixedly provided with a smoke dust purifier (18), and the top of the interior of the cabinet body (2) is fixedly provided with two groups of second push rods (19).

2. The positioning device for machining the automobile hub with the adjustable distance according to claim 1, is characterized in that: the front side fixed mounting of the cabinet body (2) inside has converter (17), and one side fixed mounting of converter (17) has PLC controller (1701).

3. The positioning device for machining the automobile hub with the adjustable distance as claimed in claim 1, characterized in that: the outer side of the positioning seat (8) is attached with a rubber pad (9), and a plurality of groups of anti-skid protrusions (901) are arranged on the outer portion of the rubber pad (9) at equal intervals.

4. The positioning device for machining the automobile hub with the adjustable distance as claimed in claim 1, characterized in that: the top fixed mounting of smoke and dust clarifier (18) has input tube (1801), and the one end fixedly connected with of input tube (1801) is flexible pipe (1802).

5. The positioning device for machining the automobile hub with the adjustable distance according to claim 1, is characterized in that: the lamp (12) is fixedly installed above the dust hood (11), and the protective pad (701) is fixedly installed on the front side and the rear side of the top of the lifting plate (7).

6. The positioning device for machining the automobile hub with the adjustable distance according to claim 1, is characterized in that: a protection pad (6) is attached to the inside of the positioning groove (402), and a plurality of groups of supporting protrusions (601) are arranged on the top of the protection pad (6) at equal intervals.

7. The positioning device for machining the automobile hub with the adjustable distance according to claim 1, is characterized in that: the front side of the operating platform (4) is fixedly provided with an operating button (5), and an indicator lamp (501) is fixedly arranged above the operating button (5).

8. The positioning device for machining the automobile hub with the adjustable distance as claimed in claim 1, characterized in that: the front movable mounting of the cabinet body (2) has a maintenance door (3), and the front fixed mounting who maintains door (3) has safety lock (301).

9. The positioning device for machining the automobile hub with the adjustable distance as claimed in claim 1, characterized in that: the cabinet body (2) bottom is rotated all around and is installed bracing piece (101), and the bottom fixed mounting of bracing piece (101) has supporting seat (1).

10. The positioning device for machining the automobile hub with the adjustable distance as claimed in claim 1, characterized in that; a back plate (20) is fixedly arranged below the back of the cabinet body (2), a plurality of groups of vent holes (2001) are formed in the back of the back plate (20) at equal intervals, and a sealing gasket (2002) is attached to the outer side of the front of the back plate (20).