64results about "Honing tools" patented technology

Tool (5) for machining a workpiece (4), comprising: - a tool shank (12) rotatable about a rotary axis (10), - a cutting device (13) arranged on the tool shank (12) with: - at least one pre-cutting element (14) and - at least one post-cutting element (15),- a first slide unit (8) for displacing the at least one pre-cutting element (14) relative to the tool shank (12) with -- a first output body (25) connected to the at least one pre-cutting element (14) and -- a first drive body (23) interacting with the respective first output body (25) via a first drive surface (24) and - a second slide unit (9) displaceable relative to the first slide unit (8) for displacing the at least one re-cutting element (15) relative to the tool shank (12) with -- a second output body (29) connected to the at least one re-cutting element (15) and -- a second drive body (27) interacting with the respective second output body (29) via a second drive surface (28), wherein the first drive surface (24) and the second drive surface (28) overlap each other in an orthogonal projection onto a transverse plane to the axis of rotation (10), thereby characterizedthat a maximum feed path (s1, s2) of at least two of the output bodies (25, 29) is different.

To provide a honing tool capable of simultaneously and highly accurately grinding respective inner walls of a plurality of workpieces.SOLUTION: The hone tool 1 includes a grind part 13, a tool body 12 which has a long cylindrical shape and in which four slit J1 extending along a cylindrical shaft 12a direction and into which the grind part 13 is inserted are provided at an end on a - Z direction side, and an end on a + Z direction side is fixed to a rotary main spindle, and an extension rod inserted into the tool body 12. The tool body 12 has two guide parts 121, 122 provided on both sides of the slit 12a in the longitudinal direction. The guide portions 121 and 122 include four first grooves 121b and 122b extending in the direction of the cylinder axis J1 on the side walls thereof, and four second grooves 121a and 122a spirally extending around the cylinder axis J1 between the four first grooves 121b and 122b of the side walls.SELECTED DRAWING: Figure 3

The invention discloses a piston ring double-shaft ring surface honing device, and belongs to the technical field of piston ring machining, the device comprises a supporting seat, a honing rack is mounted at the top of the supporting seat, an inner cavity of the honing rack is connected with a telescopic curtain through a lifting assembly, the surface of the telescopic curtain is fixedly connected with a fixing plate, and the fixing plate is fixedly connected with the supporting seat. And a motor is mounted on the front side of the fixed plate through a bearing seat. The distance between the two arc-shaped plates is adjusted by rotating a nut, a piston ring is placed between the two arc-shaped plates to be fixed, then the upper face and the lower face of the piston ring are honed through matched use of a motor, a honing abrasive strip and a lower honing shaft, after honing is completed, an adjusting cap is rotated, a sliding sleeve, a linkage plate and a cross rail are matched, and the piston ring is honed. The piston ring is arranged on the surface of the honing abrasive strip in a sleeving mode, then the honing ring is installed in an inner cavity of the installation sleeve, then the clamping jaw can clamp and fix the bearing block, and finally the honing abrasive strip can drive the piston ring to rotate in the inner cavity of the honing ring to conduct honing on the outer circle face of the piston ring.

The invention provides a multi-precision honing head mechanism, and relates to the technical field of honing heads, the multi-precision honing head mechanism comprises a connecting sleeve, a mounting sleeve is mounted at the bottom of the connecting sleeve, a plurality of honing oilstones are uniformly distributed and mounted on the outer surface of the mounting sleeve, and a mounting mechanism for mounting the honing oilstones is arranged in the mounting sleeve. According to the invention, through the cooperation of the matching inclined surfaces and the inclined surfaces at the bottoms of the conical pressing block, the first conical sleeve and the second conical sleeve, when the conical pressing block, the first conical sleeve and the second conical sleeve are controlled to move, the first moving frame, the second moving frame and the third moving frame can be controlled to move respectively; the honing oilstones of different specifications can be switched to the machining positions for machining of different working procedures, machining of different working procedures can be completed without replacing the honing head or the honing oilstones, operation of tool changing and tool re-setting is avoided, the machining time is effectively saved, and the working efficiency is improved.

A shaping tool for shaping and polishing a workpiece. The shaping tool comprises a rigid shaping part for shaping the workpiece in use by movement of an outwardly facing surface of the rigid shaping part and a surface of the workpiece against each other so as to remove material from at least a part of the workpiece; and a polishing surface biasable towards a first position in which said polishing surface protrudes relative to an adjacent region of the outwardly facing surface of the rigid shaping part, wherein the polishing surface is moveable to a second position in which the polishing surface lies level with said adjacent region of the outwardly facing surface of the rigid shaping part. When the shaping tool is applied to a workpiece to remove material therefrom and polish the workpiece, the polishing surface, while moving against that part of the workpiece, is biased towards the first position so as to contact the part of the workpiece from which material was removed by the rigid shaping part thereby polishing that part of the workpiece.

The invention discloses a vertical honing machine for machining the inner surface of a large workpiece, and relates to the field of grinding equipment, the vertical honing machine comprises a machine body, a workbench and a honing head, the honing head comprises an adjusting rod and a plurality of sets of grinding strips, the multiple sets of grinding strips are distributed at equal intervals in the axial direction of the honing head, the number of each set of grinding strips is multiple, and the adjusting rod is connected with the workbench. The grinding strips are distributed around the axis of the honing head at equal angles, and every two sets of grinding strips are arranged in a staggered mode in the circumferential direction of the honing head. A grinding strip seat is arranged on one side, close to the center of the honing head, of the grinding strip, a grinding strip ejector rod is connected to one side, away from the grinding strip, of the grinding strip seat, the adjusting rod is provided with an adjusting conical surface, the grinding strip ejector rod abuts against the adjusting conical surface, and the adjusting conical surface can be matched with the grinding strip ejector rod to adjust the position of the grinding strip. When the honing machine is used for honing large workpieces, the balance of the honing head in operation can be met on the premise that the honing load of the honing machine is controlled as much as possible.

The invention relates to the technical field of honing equipment, and discloses a supporting device and honing equipment. The supporting device comprises a supporting mechanism, an adjusting mechanism and a limiting mechanism, a honing rod of the honing equipment is sleeved with the supporting mechanism, in the first state, the supporting mechanism moves along with the honing rod, and in the second state, the supporting mechanism and the honing rod are disconnected so that the honing rod can move relative to the supporting mechanism; the adjusting mechanism controls the supporting mechanism to be switched between the first state and the second state. In the second state, the limiting mechanism abuts against the supporting mechanism, and in the first state, the limiting mechanism is disconnected from the supporting mechanism. According to the supporting device, the position of the supporting device on the honing rod can be adjusted according to the length, needing to stretch into the workpiece, of the honing rod, the supporting device enters the inner hole of the workpiece together with the honing rod and supports the honing rod together with the honing head, the overhanging length of the honing rod is shortened, the honing rod can be prevented from deforming, and abrasion between the honing rod and the inner hole is avoided.

This invention belongs to the field of magnetic honing technology, and particularly relates to an eccentric magnetic grinding wheel and a magnetic honing device with magnetic pole reversal function. It solves the problems of low strength, low processing efficiency, poor processing stability, and rapid failure of existing magnetic grinding wheels, as well as the need for manual changing of the magnetization direction of the outer magnetic poles in existing magnetic honing devices. The eccentric magnetic grinding wheel includes a lower tool holder, at least one grinding phase, at least two rectangular strip-shaped inner magnets, and an upper tool holder with the same number of inner magnets. This invention also discloses a magnetic honing device with magnetic pole reversal function, including a linear slide rail assembly, a slide table, a magnetic field generating mechanism, and two pipeline support assemblies. This invention enhances the processing force of the grinding phase and improves processing efficiency; the grinding edge has a certain angle with the horizontal reference plane, ensuring surface contact with the inner wall of the polishing tube; thus improving both the grinding phase life and processing efficiency.

The present application relates to a kind of honing tools, belong to honing equipment technical field, to solve the existing technology, the inner hole of the metal piece of aluminum, copper and its alloy is processed by honing, there is the problem of honing processing process, metal chip is easy to block tool chip removal passage, leading to low workpiece machining precision even workpiece scrapping, affect processing quality.The present application includes tool body, tool body is the cylindrical structure of the section being circular type, tool body includes connecting portion, honing portion and guide portion along the body, and guide portion and honing portion are equipped with first chip removal groove;The slotting direction of first chip removal groove is opposite to the honing rotation direction of honing tool.The tool body of the honing tool of the present application is equipped with first chip removal groove and second chip removal groove, wherein the slotting direction of first chip removal groove is opposite to the honing rotation direction of tool, by reverse fluid dynamics effect, can enhance the flushing strength of chip liquid when honing, simultaneously accelerate chip discharge, and the chip removal efficiency is high.

This invention discloses a honing apparatus and method for annular thin-walled short holes, comprising a threaded cap, a threaded bushing, a first washer, a second washer, and a positioning block. The end of the threaded cap is inserted into the threaded bushing. The first washer is located inside the threaded bushing, the second washer is located inside the threaded cap, and the positioning block is located inside the threaded cap, with one end of the positioning block contacting the first washer and the other end contacting the second washer. A first part is sleeved on one end of the positioning block, and a second part is sleeved on the other end of the positioning block. The first part is located between the positioning block and the inner walls of the first washer and the threaded cap, and the second part is located between the positioning block and the inner walls of the second washer and the threaded cap. This apparatus and method can ensure the machining quality and efficiency of the inner hole of annular thin-walled parts.

The utility model discloses a fine polishing device for a cylinder hole, which relates to the technical field of machining, aims to solve the problem of how to optimize a honing head, and comprises a cylinder, three equilong supporting ribs are integrally arranged on the side wall of the cylinder, the three supporting ribs are arranged in an equilateral triangle shape, and the three supporting ribs are arranged on the side wall of the cylinder. A mounting opening is formed in the end, away from the cylinder, of the supporting rib, a honing stone seat is mounted in the mounting opening, and a fine polishing assembly is mounted on the surface of the side, away from the supporting rib, of the honing stone seat.

The utility model relates to the technical field of honing processing devices, and discloses a precise honing processing device of a bimetal cylinder liner, which comprises a honing device main body, one end of the honing device main body is provided with a controller, the honing device main body is internally provided with a honing head, two sides of the honing device main body are respectively provided with a first sliding groove, and a second sliding groove is arranged in the first sliding groove. A first sliding groove is formed in one end of the honing device body, a first sliding block is slidably connected into the first sliding groove, a protective cover is slidably connected to one end of the honing device body, the protective cover is fixedly connected with the first sliding block, a circular groove is formed in one end of the first sliding block, and a first spring is fixedly connected into the circular groove. According to the precise honing machining device for the bimetal cylinder sleeve, cuttings and cooling liquid generated by high-speed rotation and friction can be prevented from splashing all around, so that the cleanliness of the working environment is kept, and potential hazards of the cuttings and the cooling liquid to operators and equipment are greatly reduced.

The utility model discloses a honing oilstone strip with an adjustable arc, and particularly relates to the technical field of honing oilstone strips, the honing oilstone strip comprises a plurality of oilstone barrel bodies and a middle shaft strip, the oilstone barrel bodies are installed on the middle shaft strip, a reinforcing mechanism is arranged on one side of each oilstone barrel body, and the reinforcing mechanism comprises a plurality of protruding strips fixedly arranged on the inner wall of the oilstone barrel body. A plurality of grooves are formed in the surface of the middle shaft strip, the protruding strips are connected with the grooves in a sliding mode, the oilstone barrel is made of abrasion-resistant honing materials, the middle shaft strip is made of high-strength alloy steel wire materials, and threaded grooves are formed in the two ends of the middle shaft strip respectively. The inner wall protruding strip is in sliding connection with the middle shaft strip groove, circumferential rotation is limited, it is ensured that the oilstone barrel body is stable in position on the shaft strip, the middle shaft strip made of high-strength alloy steel wires can be bent, the position angle of the oilstone barrel body is changed accordingly, and honing requirements of different arc shapes are met.

A gantry type single-shaft honing machine comprises a base, the base is provided with a Y-axis rail, the Y-axis rail is used for moving a workpiece, two gantry stand columns, namely a front stand column and a rear stand column, are fixed to the four corners of the base, and the space between the two gantry stand columns is a machining space; a box is fixed to the tops of the two stand columns, an X-axis rail is arranged on the box, a honing spindle unit capable of sliding along the X-axis rail is arranged on the X-axis rail, an X-axis motor is fixed to the box, and a lead screw is fixed to an output shaft of the X-axis motor. Compared with the prior art, the honing machine has the technical effects that the portal frame is arranged, so that the honing main shaft can move on the X axis and is matched with the Y-axis movement of a workpiece, the honing main shaft (honing head) and the workpiece can be horizontally positioned in a two-dimensional manner, and the honing head has more degrees of freedom.

Disclosed is a machining unit for machining a bearing component. The machining unit includes an industrial robot and at least one abrasive tool. The at least one abrasive tool is coupled to the industrial robot and a controller. The controller is configured to control a movement path of the at least one abrasive tool such that a contact of the abrasive tool is in the normal direction to a surface of the component.

The present application relates to a kind of honing bar for honing borehole groove, belong to borehole honing technical field;Including honing head, honing head includes body, the push rod groove inside the rear end of body is provided with push rod seat, push rod seat is provided with tool withdrawal spring with the bottom surface of push rod groove inside;Six rotating grooves are uniformly provided on the outer side of body, the bottom surface of rotating groove is provided with lifting groove, lifting groove rear end is communicated with push rod groove, the inside of lifting groove is provided with push piece, push piece outside is sequentially provided with lifting oil stone seat, rotating oil stone seat, rotating in the rotating groove inside rotating oil stone seat, push piece and lifting oil stone seat are contacted by slope, the rear end of each push piece is connected with push rod seat by push rod, six rotating oil stone seats are connected by an annular locking spring;The front end of front push rod is inserted into the push rod groove inside body and with the rear end surface of push rod seat contact;Solved the current method of honing borehole inner wall Efficiency is lower, consumption is larger, the problem of higher artificial cost.

The utility model discloses a grinding ring sleeve tool, which relates to the technical field of part processing equipment and comprises a clamp body, a grinding ring sleeve is arranged in an accommodating cavity in the clamp body, a gap is arranged between the outer wall of the grinding ring sleeve and the inner wall of the clamp body, an end cover is arranged on one side of the clamp body, and a fixing groove is arranged in the end cover. The inner wall of the clamp body extends to form a positioning face perpendicular to the axis of the grinding ring sleeve, the positioning face and the fixing groove abut against the two ends of the grinding ring sleeve respectively, and the grinding ring sleeve is clamped and fixed through the end cover and the clamp body. And the grinding ring sleeve moves in the tool for positioning, so that the size of an oil groove machined in the grinding ring sleeve is deviated.

The application discloses a honing head and a honing device with the same. The honing head comprises a connecting shaft, a mounting seat and a plurality of honing assemblies. The connecting shaft has a first end and a second end, and the second end is used for connecting a power device. The second end of the connecting shaft is connected with the mounting seat. The plurality of honing assemblies are arranged at intervals along the circumference of the connecting shaft. Each honing assembly comprises a bracket and a honing bar. The honing bar is connected with the bracket. The honing bar has a honing surface arranged on the side of the honing bar away from the axis of the connecting shaft. The bracket is movably connected with the mounting seat so that the honing surface is abutted against the cylinder wall. The honing head of the embodiment of the application can improve the flatness and uniformity of the honing of the cylinder wall, reduce the risk of liquid channeling and liquid leakage of the hydraulic cylinder, and has a better maintenance effect.

The application discloses a kind of automatic super-precision polishing machines of thread nut oil stone, including rack, clamping mechanism, positioning part, swing part, height adjusting part and polishing mechanism;Clamping mechanism is used to clamp workpiece thread nut and drive its linear translation and rotation;Positioning part is used to position the ball track of workpiece thread nut;The first end of swing part is hinged in the top surface of rack, and the second end is swingable relative to the first end in the first station corresponding to workpiece thread nut and the second station away from it;Height adjusting part includes dovetail plate and dovetail tenon, and the dovetail plate is fixed on the top surface of the second end of swing part;Dovetail tenon is slidably connected in dovetail groove;Polishing mechanism includes servo motor one, super-precision head and oil stone;Servo motor one is fixed on dovetail tenon;Super-precision head is fixed with the output shaft of servo motor one;Oil stone is clamped on super-precision head to polish the inner wall of the thread of workpiece thread nut.The application realizes high-precision, high-efficiency thread nut ball track super-precision polishing, and improves the applicability and reliability of the equipment.

The utility model discloses a honing head with multiple oilstone protection wings, and particularly relates to the technical field of honing heads, the honing head comprises a honing head body, oilstones are installed on the outer side of the honing head body, the two sides of the oilstones are fixedly connected with the protection wings, and a disassembly and assembly mechanism is arranged between the honing head body and the oilstones; the dismounting and mounting mechanism comprises a mounting connecting plate, the mounting connecting plate is fixed to one side of the oilstone, and a threaded groove is formed in the surface of the top of the mounting connecting plate. According to the utility model, through the arrangement of the dismounting and mounting mechanism, the oilstone is quickly mounted and replaced, the oilstone is fixed on the honing head, the maintenance time and cost are obviously reduced, the protective wings are made of polyurethane materials and fixed on the two sides of the oilstone, the oilstone can be effectively prevented from being externally impacted or abraded in the machining process, and meanwhile, the service life of the oilstone is prolonged. The flexible materials of the protective wings can absorb vibration generated in the machining process, the machining stability is improved, vibration marks and defects on the surface of the workpiece are reduced, and the machining quality is remarkably improved.

The utility model discloses a strengthening type stepped hole honing rod, and particularly relates to the technical field of honing rods, the strengthening type stepped hole honing rod comprises a first supporting triangular block, a second supporting triangular block is arranged on one side of the first supporting triangular block, and limiting hole cavities are formed in the first supporting triangular block and the second supporting triangular block in a penetrating mode. Through corresponding cooperative use of all the structures, the reinforcing grinding rod bodies can drive the butt joint to move and abut against the end of the first grinding head, the reinforcing grinding rod bodies are limited through the limiting hole cavity, and the limiting hole cavity and the two reinforcing grinding rod bodies are located on the same axis. The stability of the reinforced grinding rod body and the first grinding head during rotation can be effectively guaranteed, different positions of a workpiece can be machined easily by adjusting the position of the reinforced grinding rod body, the second grinding head can be installed on the reinforced grinding rod body to be limited through the limiting clamping groove, and the stability and convenience of the reinforced grinding rod body during installation are guaranteed.

The utility model provides a kind of vertical honing machine main shaft assembly, including shell and the inner shaft being arranged in the inside of shell, outer shaft, inner shaft one end projects the outside of shell as the main shaft of vertical honing machine, outer shaft one end projects the outside of shell and is connected with control motor, shell inside is also equipped with planetary differential device, planetary differential device is simultaneously connected with inner shaft, outer shaft transmission, still include drive motor, drive motor is connected with the drive of planetary differential device.This practical main shaft assembly whole structure is simple, need not occupy additional space, it is convenient to use directly in vertical honing machine, reduces installation, maintenance difficulty and the difficulty of equipment transportation;In the utility model, planetary differential device is used as the transfer device of power transmission, the final power output of the superposition of drive motor and control motor is to inner shaft, the setting of speed difference can be completed by drive motor from outside, with better adjustment flexibility and adjustment efficiency, and then also improve production efficiency.

The invention discloses a honing tool with cooling liquid suction, storage and slow release functions and a use method of the honing tool. The structure comprises a cone pushing rod with an internal cooling liquid channel and a flow dividing hole, and a porous honing oilstone base body connected with the tail end of the cone pushing rod. A liquid storage cavity is formed in the base body, and a plurality of tiny hole channels are formed in the base body, communicate with the liquid storage cavity and the flow dividing holes and are used for absorbing and storing cooling liquid. The outer surface of the base body is covered with the porous abrasive material layer, the porous abrasive material layer is communicated with the tiny hole channels, cooling liquid can be continuously released to a machining area in the honing process, and therefore friction heat is reduced, and machining quality is improved. The device is reasonable in structure, uniform conveying and slow release of cooling liquid can be achieved, and honing machining efficiency and workpiece surface quality are improved.

A grinding oilstone clamping mechanism comprises an adapter piece and a connecting piece. A clamping structure is arranged at the lower end of the adapter to fix the oilstone, and at least two connecting grooves are formed in the upper end of the adapter at intervals along the same axis; the connecting piece is provided with a connector corresponding to the connecting groove, the front end of the connecting piece can be inserted into the connecting groove to form detachable connection, the rear end of the connecting piece is provided with a connecting rod connected with grinding equipment, and the included angle between the connector and the connecting rod is larger than or equal to 90 degrees. The front end of the connector is of a spherical surface structure, the connecting groove is a round hole groove, a limited spherical hinge is formed, and deflection of the self-adjusting compensation equipment is allowed. And the clamping structure adopts a groove-shaped or wedge-shaped bulge design, so that the oilstone fixing stability is enhanced. Circumferential torque is restrained and restrained through multiple fulcrums, the oilstone is prevented from rotating, stress distribution is optimized, clamping reliability and grinding precision are improved, and the grinding device is suitable for precision grinding operation under the high-dynamic working condition and has the advantages of being simple in structure, convenient to disassemble and assemble, long in service life and the like.

The invention relates to the technical field of grinding equipment, and particularly provides a chamfering, deburring and grinding device for brake disc production. The device comprises a switching rotating shaft, a plurality of air duct grinding heads, a first disc and a second disc. A sealing ring is formed when the plurality of air duct grinding heads are adjacently clung to each other; when the two ends of the sealing ring are synchronously attached to the first disc and the second disc, a grinding cabin used for sealed grinding of the brake disc is formed, and the air duct grinding head makes synchronous contact with the two discs. During grinding, the first disc and the second disc are transmitted through the air duct grinding head to keep synchronous vibration, and the grinding end of the air duct grinding head reciprocates along the air duct for grinding; the device provided by the invention can carry out targeted deburring and polishing on a specific brake disc, can carry out continuous, automatic and dustless polishing operation, and solves the problems that polishing is inconvenient, burrs are not cleaned in place and the roughness of a brake surface is damaged during existing deburring and polishing.

This invention discloses a honing machine. The honing head and the spindle are connected by a rigid connection assembly. The rigid connection assembly has a flexible self-aligning mechanism, which is a continuous material body bridging the spindle and the honing head. This continuous material body has a flexible deformation region capable of controlled elastic deformation. During the assembly stage, the initial misalignment error of the honing head axis relative to the spindle axis is adjusted and eliminated by the deformation of the flexible deformation region. After self-alignment is completed, the flexible self-aligning mechanism is locked, and the deformation state of the flexible deformation region is frozen. This allows the spindle and the honing head to transmit loads through the continuous material body and form a rigid, integrated rotating body during operation. While achieving rigid connection and flexible self-alignment, the radial opening and closing drive function of the inner and outer shafts on the first and second honing component groups is not affected.

The invention relates to a double-sided or single-sided machine tool, comprising a preferably annular lower first working disk and an upper counter-bearing element, the first working disk and the counter-bearing element being rotatably driven relative to one another by means of a rotary drive. A working gap for double-sided or single-sided machining of the flat workpiece is formed between the first working disc and the counter-bearing element, and wherein the double-sided or single-sided machining machine tool also has a machine tool base with legs by means of which the machine tool base stands on the floor of the production space in the installed state of the double-sided or single-sided machining machine tool, wherein the machine tool base carries a first working disk and a mating bearing element, and wherein the foot has a sensor for monitoring the orientation of the first working disk.

A shaping tool for shaping and polishing a workpiece. The shaping tool comprises a hard shaping section for shaping a workpiece in use, which shapes the workpiece by the movement of the outward-facing surface of the hard shaping section and the surface of the workpiece relative to each other to remove material from at least a portion of the workpiece, and a polishing surface which is biasable toward a first position projecting toward an adjacent region of the outward-facing surface of the hard shaping section and movable toward a second position at the same height as the aforementioned adjacent region of the outward-facing surface of the hard shaping section. When the shaping tool is applied to a workpiece to remove material from the workpiece and to polish the workpiece, the polishing surface is biased toward the first position while moving toward that portion of the workpiece to polish that portion of the workpiece by contacting the portion of the workpiece from which the material has been removed by the hard shaping section.

The utility model relates to the technical field of surface treatment, and discloses a surface treatment device for a high-precision inner hole honing pipe, which is characterized in that a top cover is arranged at the top of a rack, a motor is mounted on the top cover, the motor is connected with a main belt wheel, and the main belt wheel is in transmission connection with an auxiliary belt wheel through a belt. A movable shaft is arranged below the sleeve, a polishing wheel is arranged at the bottom end of the movable shaft, a dust suction shell is arranged on the outer side of the polishing wheel, and a dust suction pipe is arranged on the dust suction shell. The arranged motor drives the sleeve to rotate through belt transmission, the sleeve further drives the movable shaft and the polishing wheel to rotate, and honing treatment on the surface of the inner hole is achieved. And a dust collection shell and a dust collection pipe are arranged, so that dust generated in the polishing process can be effectively collected, and the working environment is kept clean. And due to the arrangement of the moving module, the movable shaft can stretch out and draw back, and the movable block slides along the adjusting sliding groove, so that the position of the grinding wheel is adjusted to adapt to inner holes of different specifications, and the grinding flexibility and precision are improved.