CN115319551A

CN115319551A - Tire grinding device

Info

Publication number: CN115319551A
Application number: CN202210776990.2A
Authority: CN
Inventors: 王�锋; 战浩; 吕建强
Original assignee: Shandong Linglong Tyre Co Ltd
Current assignee: Shandong Linglong Tyre Co Ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-11-11

Abstract

The invention discloses a tire polishing device, which mainly comprises a rack forming the whole structure of the polishing device and support columns fixed on two sides of the rack, wherein clamping devices are fixed on the two support columns respectively in opposite positions, the clamping devices are used for fixing a tire in the axial direction and driving the tire to rotate around the axial direction, a tire polishing system is also arranged in the rack and used for polishing the surface of the tire, when the tire needs to be polished, the tire is fixed in the rack through the clamping devices and is driven to rotate around the central axial direction of the tire, and the tire polishing system is started to polish the tire.

Description

Tire grinding device

Technical Field

The invention relates to the technical field of tire grinding machines, in particular to a tire grinding device.

Background

Tires are ground-rolling annular elastic rubber products assembled on various vehicles or machines, and are generally mounted on metal rims to support vehicle bodies, cushion external impacts, achieve contact with road surfaces, and ensure the driving performance of the vehicles. During the manufacturing process of the tire, the tire hair outside the tire is correspondingly ground, and a corresponding grinding machine is used for grinding the tire.

The polishing process of the side tire bead of the current tire is intelligent, standardized, and unreasonable in systematization integrity, and the main problems of the polishing process include that the side tire cannot be polished in place, the polishing process is low in polishing efficiency, uneven in polishing height, uneven in thickness, low in polishing precision, low in safety coefficient and the like.

Disclosure of Invention

In some embodiments of the application, for solving above-mentioned technical problem, a tire grinding device is provided, through improving clamping device and system of polishing, realized that tread, tire shoulder and the side wall of tire can polish simultaneously to the position between tire and the equipment of participating in the tire work of polishing can carry out the adaptability adjustment, thereby solved prior art and polished the inefficiency at tire grinding device, polish the height uneven, thickness inhomogeneous, the precision of polishing is not high, the low problem of factor of safety.

In some embodiments of the application, clamping device and system of polishing have been improved, the system of polishing includes side wall grinding device and tread grinding device on the one hand, can realize the tread of tire, tire shoulder and side wall are polished simultaneously, on the other hand, position between the equipment that realizes tire and participated in tire work of polishing through height adjusting device and angle adjusting device can carry out the adaptability control adjustment, can be quick, accurate regulation tread grinding device, the distance of side wall grinding device and tire support, thereby can be more accurate regulation tread grinding device, the frictional force size between side wall grinding device and the tire, and then can further make this grinding device better to the effect of polishing of tire.

Be provided with pressure sensor in height adjustment device and the angle adjustment device, full automation can be realized to its adjustment process for grinding device can polish simultaneously tread, tire shoulder, side wall, and the position of polishing is comprehensive, and it is level and smooth to polish, and the thickness of polishing is even, and factor of safety is high, and equipment degree of automation is high moreover, and is easy and simple to handle.

In some embodiments of the present application, a grinding device includes a frame, a clamping device, and a grinding system.

The frame forms grinding device overall structure, and the both sides of frame are fixed with the support column, and clamping device is relative position and fixes respectively on two support columns, and clamping device includes tire rotary device and tire closing device, and clamping device is used for fixing the tire at axial direction and drives the tire and rotate around the axial, and the height-adjustable of clamping device in the frame still is provided with the tire system of polishing in the frame for polish to the surface of tire.

The polishing system comprises a sidewall polishing device and a tread polishing device.

The tire side grinding device is fixed on two support columns respectively in relative position and is used for grinding tire shoulders and tire sides on two sides of the tire, the tire is installed behind the clamping device, the tire side grinding device is in contact with the tire shoulders and the tire sides, and the relative distance between the tire side grinding device and the tire sides or the tire shoulders is adjustable.

The tire tread polishing device is located at the bottom of the rack and used for polishing the tire tread of the tire, the tire is installed behind the clamping device, the tire tread polishing device is in contact with the tire tread of the tire, and the relative distance between the tire tread polishing device and the tire tread of the tire is adjustable.

In some embodiments of the present application, the tire rotating device includes a rotary motor and a hydraulic lifting device.

A shaft coupling is fixed on a motor shaft of the rotary motor, the rotary motor is fixed on the support column through a hydraulic lifting device, and the hydraulic lifting device is used for controlling the height of the clamping device in the rack.

A motor shaft of the rotary motor is fixedly connected with a pressing device through a coupler, and the pressing device comprises a hydraulic telescopic device and a clamping outer hub.

The hydraulic telescopic device is fixed on the coupler, the clamping outer hubs are fixed at telescopic ends of the hydraulic telescopic device, and the distance between the two clamping outer hubs which are respectively fixed on the two rotary motors through the hydraulic telescopic device is adjusted by extending and shortening the hydraulic telescopic device.

In some embodiments of this application, centre gripping outer wheel hub is circular fixed disk, and the antiskid groove has been seted up with a side of tire contact to the centre gripping outer wheel hub, and the even array in centre gripping outer wheel hub circumference is provided with the expansion part, and the expansion part is through flexible length in order to change the outer wheel hub diameter of centre gripping.

In some embodiments of the present application, a sidewall buffing device includes a buffing wheel, a buffing wheel motor and an angle adjustment device.

The tire is installed and is located clamping device back, and the emery wheel of polishing contacts with the tire shoulder or the side wall of tire, and the emery wheel of polishing is connected on the motor shaft of emery wheel motor, and the emery wheel motor is used for the drive emery wheel of polishing to rotate, and the direction of rotation of the emery wheel of polishing is opposite with the direction of rotation of tire, and the emery wheel of polishing rotationally is fixed in angle adjusting device, and angle adjusting device is used for adjusting the contact position of emery wheel of polishing and tire.

The angle adjusting device is provided with a pressure sensor

In some embodiments of the present application, a tread buffing apparatus includes a buffing roller, a buffing roller motor, and a height adjustment apparatus.

The tire is installed and is located clamping device back, and the emery wheel of polishing contacts with the tread of tire, and the roller of polishing is connected on the motor shaft of grinding roller motor, and the grinding roller motor is used for driving the roller of polishing and rotates, and the direction of rotation of the roller of polishing is opposite with the direction of rotation of tire, and the roller of polishing rotationally installs on height adjusting device, and height adjusting device is used for adjusting the relative position between roller of polishing and the tire tread.

The height adjusting device is provided with a pressure sensor

In some embodiments of this application, the frame is provided with the casing that is used for whole confined with grinding device outward, is provided with on the casing to be used for opening the casing or the confined door body.

In some embodiments of the present application, the polishing apparatus further comprises a control system, the clamping device and the polishing system are both electrically connected to the control system, and the control system is a PLC control system.

The invention has the beneficial effects that:

1) The tread, shoulders and sidewalls of the tire may be buffed simultaneously.

2) The distance that can be quick, accurate regulation tread grinding device, side wall grinding device and tire support to frictional force size between regulation tread grinding device, side wall grinding device and the tire that can be more accurate makes this grinding device better to the effect of polishing of tire, and the precision of polishing is high, and is efficient, and the position of polishing is comprehensive, polishes levelly and smoothly, and the thickness of polishing is even, and factor of safety is high.

3) The mechanical automation degree is high, the adjustment process can realize full automation, the PLC control system has high intelligent degree, the feedback control can be realized, the precision is high, accuracy and convenience are realized, and the labor is saved. The speed of the grinding wheel is controlled, so that the grinding process is controlled, manpower can be completely liberated, and the operation is simple and convenient.

Drawings

FIG. 1 is one of the structural configurations (inside the housing) of a tire buffing apparatus according to some embodiments of the invention;

FIG. 2 is one of the structural diagrams (inside the housing) of the tire buffing apparatus in some embodiments of the invention;

FIG. 3 is one of the side wall buffing device configurations in some embodiments of the present invention;

FIG. 4 is one of the structural diagrams (half section) of the sidewall buffing device in some embodiments of the present invention;

FIG. 5 is a schematic view of a clamping device according to some embodiments of the present invention;

FIG. 6 is a schematic view of a clamping outer hub configuration in some embodiments of the present invention;

FIG. 7 is a schematic view of a tread buffing apparatus according to some embodiments of the present disclosure;

FIG. 8 is one of the structural views of a tire buffing apparatus (door closed) in some embodiments of the invention;

figure 9 is one of the structural views of a tire buffing apparatus (door open) in some embodiments of the invention.

Reference numerals:

the method comprises the following steps: 100. a frame; 110. a support pillar; 120. a housing; 130. a door body; 200. a clamping device; 210. a tire rotating device; 211. a rotary motor; 2111. a coupling; 212. a hydraulic lifting device; 220. a pressing device; 221. a hydraulic telescopic device; 222. clamping an outer hub; 2221. an anti-slip groove; 2222. an expansion section; 300. a polishing system; 310. a sidewall polishing device; 311. grinding the grinding wheel; 312. a grinding wheel motor; 313. an angle adjusting device; 320. a tread polishing device; 321. grinding a roller; 322. a grinding roller motor; 323. a height adjusting device.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The invention discloses a tire polishing device, which is used for solving the problems of low polishing efficiency, uneven polishing height, uneven thickness, low polishing precision, low safety coefficient and the like of the tire polishing device in the prior art.

As shown in fig. 1-7, the polishing apparatus includes a frame 100, a holding device 200, and a polishing system 300.

The frame 100 includes a bottom frame and a top frame, forming an overall structure of the polishing apparatus, and support columns 110 are fixed to both sides of the frame 100.

The holding devices 200 are fixed to the two support columns 110 at opposite positions.

The gripping device 200 includes a tire rotating device 210 and a tire holding down device 220.

The clamping device 200 is used for fixing the tire in the axial direction and driving the tire to rotate around the axial direction, and the height of the clamping device 200 in the frame 100 is adjustable.

Also disposed within the frame 100 is a tire buffing system 300 for buffing the surface of a tire.

The buffing system 300 includes a sidewall buffing device 310 and a tread buffing device 320.

The sidewall polishing device 310 is fixed on the two support pillars 110 at opposite positions respectively, and is used for polishing the tire shoulders and the sidewalls of the tire, after the tire is installed on the clamping device 200, the sidewall polishing device 310 contacts with the tire shoulders and the sidewalls of the tire, and the relative distance between the sidewall polishing device 310 and the tire sidewalls or the tire shoulders is adjustable.

The tread grinding device 320 is located at the bottom of the machine frame 100 and is used for grinding the tread of the tire, after the tire is installed on the clamping device 200, the tread grinding device 320 is in contact with the tread of the tire, and the relative distance between the tread grinding device 320 and the tread of the tire is adjustable.

It should be noted that, according to the present invention, the clamping device 200 and the polishing system 300 are improved, on one hand, the polishing system 300 includes the sidewall polishing device 310 and the tread polishing device 320, and can simultaneously polish the tread, the shoulder and the sidewall of the tire, and on the other hand, the clamping device 200 has an adjustable height in the frame 100, the relative distance between the sidewall polishing device 310 and the sidewall or the shoulder of the tire is adjustable, the relative distance between the tread polishing device 320 and the tread of the tire is adjustable, so that the position between the tire and the device involved in the tire polishing operation can be adaptively controlled and adjusted, the distance between the tread polishing device 320 and the sidewall polishing device 310 and the tire can be rapidly and accurately adjusted, so as to more accurately adjust the friction between the tread polishing device 320, the sidewall polishing device 310 and the tire, and further enable the polishing effect of the polishing device on the tire to be better, thereby solving the problems of the prior art that the polishing efficiency of the tire polishing device is low, the height is uneven, the polishing safety factor of the thickness is not uniform, the polishing precision is not high, and the polishing precision is low.

On the basis of the above technical solutions, the present invention can be further modified in that, according to an embodiment of the present invention, as shown in fig. 1 to 7, the tire rotating device 210 includes a rotating motor 211 and a hydraulic lifting device 212.

A coupling 2111 is fixed to a motor shaft of the rotary motor 211.

The rotating motor 211 is fixed on the supporting column 110 through a hydraulic lifting device 212, and the hydraulic lifting device 212 is used for controlling the height of the clamping device 200 in the machine frame 100, so that tires with different diameters can be conveniently installed in the machine frame 100.

A motor shaft of the rotary motor 211 is fixedly connected with a pressing device 220 through a coupler 2111, and the pressing device 220 includes a hydraulic telescopic device 221 and a clamping outer hub 222.

The hydraulic expansion device 221 is fixed to the coupling 2111, and the clamp outer hub 222 is fixed to the expansion end of the hydraulic expansion device 221.

The distance between the two clamping outer hubs 222 respectively fixed on the two rotary motors 211 through the hydraulic telescopic device 221 is adjusted by the extension and contraction of the hydraulic telescopic device 221 so as to clamp the tires with different tread width sizes.

In the actual use process, the tire mounting process includes: firstly, the hydraulic lifting device 212 is adjusted according to the diameter of the tire, the position of the clamping device 200 is further adjusted, the tire is held by hand to be installed in place, the hydraulic telescopic device 221 is further adjusted, the distance between the clamping outer hubs 222 on the two sides of the tire is adjusted, the tire is clamped between the clamping outer hubs 222, and meanwhile, the rotation axis of the tire and the rotation axis of the clamping outer hubs 222 are ensured to be on the same straight line.

In one embodiment of the present invention, as shown in fig. 6, the clamping outer hub 222 is a circular fixed disk, and an anti-slip groove 2221 is formed on one side surface of the clamping outer hub 222 contacting with the tire.

The clamping outer hub 222 is circumferentially and uniformly provided with expansion portions 2222, and the expansion portions 2222 are extended and retracted to change the length of the diameter of the clamping outer hub 222.

In the middle of specific embodiment, expansion 2222 is provided with four along centre gripping outer wheel hub 222 circumference, and expansion 2222 includes that the connecting rod is connected in the centre gripping outer fringe of connecting rod one end, can extract the connecting rod from centre gripping outer wheel hub 222 in through dragging the connecting rod, and for guaranteeing centre gripping outer wheel hub 222's circularity, the scale of extracting is carved out on the pole wall of connecting rod simultaneously, and its scale corresponds the not unidimensional automobile wheel hub of each conventional use, makes things convenient for different tires to polish.

In some embodiments of the present application, as shown in fig. 2-4, the sidewall grinding device 310 includes a grinding wheel 311, a wheel motor 312, and an angle adjustment device 313.

After the tire is mounted on the clamping device 200, the grinding wheel 311 is in contact with the shoulder or sidewall of the tire, the grinding wheel 311 is connected to the motor shaft of the grinding wheel motor 312, the grinding wheel motor 312 is used for driving the grinding wheel 311 to rotate, and the rotation direction of the grinding wheel 311 is opposite to the rotation direction of the tire.

The grinding wheel 311 is rotatably fixed to an angle adjusting device 313, and the angle adjusting device 313 is used for adjusting the contact position of the grinding wheel 311 and the tire.

As shown in fig. 2 and 7, the tread grinding device 320 includes a grinding roller 321, a grinding roller motor 322, and a height adjustment device 323.

After the tire is mounted on the clamping device 200, the grinding wheel 311 is in contact with the tread of the tire, the grinding roller 321 is connected to the motor shaft of the grinding roller motor 322, the grinding roller motor 322 is used for driving the grinding roller 321 to rotate, and the rotation direction of the grinding roller 321 is opposite to the rotation direction of the tire.

The grinding roller 321 is rotatably mounted on a height adjustment device 323, and the height adjustment device 323 is used to adjust the relative position between the grinding roller 321 and the tire tread.

It should be noted that, in practical applications of the present invention, the angle adjusting device 313 may specifically include a first connecting rod, a second connecting rod and a hydraulic cylinder, one end of the first connecting rod is fixed to the supporting column 110, and the other end of the first connecting rod is hinged to the second connecting rod, and the other end of the second connecting rod is fixedly connected to the grinding wheel motor 312, wherein the hydraulic cylinder is disposed at a connection position of the first connecting rod and the second connecting rod, and the hydraulic cylinder adjusts a relative angle between the first connecting rod and the second connecting rod through hydraulic expansion and contraction, so as to adjust a relative position between the grinding wheel 311 and the tire, thereby achieving position-adjustable grinding of the tire shoulder and the tire sidewall.

The height adjusting device 323 is a hydraulic cylinder, one end of the hydraulic cylinder is fixed at the bottom of the frame 100, the other end of the hydraulic cylinder is fixedly connected with the grinding roller motor 322, and the hydraulic cylinder adjusts the distance between the grinding roller 321 and the tread through hydraulic expansion and contraction to realize accurate grinding of the tread.

The adjusting driving parts of the height adjusting device 323 and the angle adjusting device 313 are all set as hydraulic cylinders, so that the position adjustment is rapid and timely, the positioning is stable, and the polishing is more accurate.

Meanwhile, all be provided with pressure sensor on height adjustment device 323 and the angle adjusting device 313, through the standard pressure value of predetermineeing the tire process of polishing, to polishing roller 321 and polish emery wheel 311 and the tire pressure value between the tire and carry out real-time detection at the in-process of polishing, pressure sensor's the purpose that sets up is on the one hand for the dynamics that enables to polish and the degree of depth of polishing carry out intelligent control, avoid manual installation tire position error and the excessive or not enough of polishing that leads to the fact, on the other hand, lie in because the process of polishing tire constantly thins, also can constantly finely tune according to the real-time condition of polishing through the pneumatic cylinder, make and polish more accurate.

In some embodiments of the present application, the polishing apparatus further comprises a control system, and the clamping apparatus 200 and the polishing system 300 are electrically connected to the control system.

The control system is a PLC control system.

It should be noted that the introduction of the PLC control system makes the mechanical automation degree of the whole device high, and can completely release the manpower.

The PLC control system has high intelligent degree, can realize feedback control, has high precision, is accurate and convenient, and saves manpower. And controlling the speed of the grinding wheel so as to realize the process control of the grinding.

In one embodiment of the present invention, as shown in fig. 8 to 9, a cabinet 120 for integrally sealing the grinding apparatus is provided outside the machine frame 100, and a door 130 for opening or closing the cabinet 120 is provided on the cabinet 120.

It should be noted that the casing 120 is provided to seal and block the polishing device from the external space, so as to prevent dust particles from scattering during polishing, which may pollute the environment and affect the health of the field workers.

In the specific embodiment of the present invention, the door 130 and the casing 120 are made of an integral tempered glass material, are transparent and firm, and can be completely sealed after the tire is placed, so that an operator can conveniently observe the reaction dynamics at any time, and the safety factor is high.

Based on the above embodiment, the working process of the present invention in practical application includes:

opening a door body 130, putting a tire to be ground with tire bead into a casing 120, closing the door body 130, opening a control system, starting a hydraulic lifting device 212 to run to a tire putting position, aligning the rotation axis of a clamping outer hub 222 with the rotation axis of the tire, starting a hydraulic telescopic device 221, controlling the clamping outer hub 222 to be close to the tire, controlling an expansion part 2222 of the clamping outer hub 222 to start expanding according to the diameter of the tire, expanding the clamping outer hub to be close to the outer wall of the inner cavity of the tire, finishing tire fixing, and controlling the hydraulic lifting device 212 to finely adjust the position of the tire, so that the tire reaches a proper position for running of the device.

The height adjusting device and the angle adjusting device are operated to make the grinding wheel 311 and the grinding roller 321 respectively contact with the tire shoulder, the tire side and the tire tread, wherein the grinding wheel 311 can control the grinding position through the angle adjusting device.

The rotating motor 211 is started to drive the tire to start rotating operation, and the grinding wheel motor 312 drives the grinding wheel 311 to start operating to grind the tire hair on the outer side of the tire.

In the grinding process, the angle adjusting device can move continuously, so that the grinding wheel 311 is driven to grind from top to bottom at each position from the tire shoulder to the tire side of the tire side, and each position on the side of the tire is fully ground.

The height adjusting device drives the grinding roller 321 driven by the grinding roller motor 322 to a proper position, and the grinding roller 321 starts to grind the tire tread position.

At this moment, the grinding roller motor 322 and the grinding wheel motor 312 are started, the grinding wheel 311 and the grinding roller 321 start to rotate in the opposite direction to the tire rotating direction, the grinding starts, in the grinding process, the pressure sensor monitors the pressure of the grinding wheel 311, the grinding roller 321 and the tire surface in real time, compares the pressure value with a preset pressure value, and then finely adjusts the grinding.

The polishing device disclosed by the invention is driven in a full hydraulic mode, so that the polishing speed is adjustable, the tire can be polished stably at a constant speed, the tire tread, the tire shoulder and the tire side of the tire can be simultaneously polished, the polishing direction is comprehensive, the polishing is flat and smooth, the polishing thickness is uniform, and the safety coefficient is high.

The equipment has high automation degree, simple and convenient operation and high polishing precision.

The invention has the beneficial effects that:

1) The tread, shoulders and sidewalls of the tire may be buffed simultaneously.

2) The distance of positive friction portion, side friction portion and tire support can be quick, accurate regulation to frictional force size between positive friction portion, side friction portion and the tire that can be more accurate, make this grinding device better to the effect of polishing of tire, the precision of polishing is high, and is efficient, and the position of polishing is comprehensive, and it is level and smooth to polish, and the thickness of polishing is even, and factor of safety is high.

Those of ordinary skill in the art will understand that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A tire buffing apparatus comprising;

the polishing device comprises a rack, a polishing device and a polishing device, wherein the rack forms an integral structure of the polishing device, and supporting columns are fixed on two sides of the rack;

the clamping devices are fixed on the two supporting columns respectively in opposite positions and comprise tire rotating devices and tire pressing devices;

the clamping device is used for fixing the tire in the axial direction and driving the tire to rotate around the axial direction, and the height of the clamping device in the rack is adjustable;

the tire polishing system is arranged in the rack and used for polishing the surface of the tire;

the polishing system comprises a sidewall polishing device and a tread polishing device;

the tire side polishing devices are fixed on the two support columns respectively in opposite positions and are used for polishing tire shoulders and tire sides on two sides of the tire, after the tire is arranged on the clamping device, the tire side polishing devices are in contact with the tire shoulders and the tire sides, and the relative distance between the tire side polishing devices and the tire sides or the tire shoulders is adjustable;

the tire tread polishing device is located at the bottom of the rack and used for polishing the tire tread of the tire, the tire is arranged on the clamping device, the tire tread polishing device is in contact with the tire tread of the tire, and the relative distance between the tire tread polishing device and the tire tread of the tire is adjustable.

2. The tire buffing apparatus of claim 1 wherein said tire rotation apparatus comprises:

a coupling is fixed on a motor shaft of the rotary motor;

the rotary motor is fixed on the supporting column through the hydraulic lifting device, and the hydraulic lifting device is used for controlling the height of the clamping device in the rack;

the motor shaft of the motor that circles round passes through shaft coupling fixedly connected with closing device, just closing device includes:

the hydraulic telescopic device is fixed on the coupler;

the clamping outer hub is fixed at the telescopic end of the hydraulic telescopic device;

and the distance between the two clamping outer hubs which are respectively fixed on the two rotary motors through the hydraulic telescopic device is adjusted through the extension and the shortening of the hydraulic telescopic device.

3. The tire buffing apparatus of claim 2 wherein the clamping outer hub is a circular fixed disk, and an anti-slip groove is formed on a side of the clamping outer hub that contacts the tire;

the even array in centre gripping outer wheel hub circumference is provided with the expansion portion, the expansion portion is through flexible in order to change the length of centre gripping outer wheel hub diameter.

4. The tire buffing apparatus of claim 1 wherein said sidewall buffing apparatus comprises:

the tire is arranged on the clamping device, and then the grinding wheel is contacted with the tire shoulder or the tire side of the tire;

the grinding wheel motor is used for driving the grinding wheel to rotate, and the rotating direction of the grinding wheel is opposite to that of the tire;

the grinding wheel is rotatably fixed on the angle adjusting device, and the angle adjusting device is used for adjusting the contact position of the grinding wheel and the tire;

and the angle adjusting device is provided with a pressure sensor.

5. The tire buffing apparatus of claim 1 wherein the tread buffing apparatus comprises:

the tire is arranged on the clamping device, and then the grinding wheel is contacted with the tread of the tire;

the grinding roller motor is connected to a motor shaft of the grinding roller motor, the grinding roller motor is used for driving the grinding roller to rotate, and the rotating direction of the grinding roller is opposite to that of the tire

The height adjusting device is used for adjusting the relative position between the grinding roller and the tire tread;

and a pressure sensor is arranged on the height adjusting device.

6. The tire buffing apparatus according to claim 1 wherein a housing for integrally enclosing the buffing apparatus is provided outside the frame, and a door for opening or closing the housing is provided on the housing.

7. The tire buffing apparatus according to claim 1 further comprising a control system, said clamping apparatus and said buffing system both being electrically connected to said control system;

the control system is a PLC control system.