A rubber-based friction plate inner and outer ring sander

Abstract

The present invention relates to a sanding machine for the inner and outer races of rubber-based friction plates. The machine comprises a frame, a liftable product positioning seat disposed on the frame, and left and right fixing devices disposed on the left and right sides of the product positioning seat, respectively. An outer race sanding mechanism is disposed above the product positioning seat, and an inner race sanding mechanism is disposed to the left of the product positioning seat. The present invention effectively solves the problems of high labor and equipment costs and low processing efficiency in existing sanding processes for the inner and outer races of rubber-based friction plates.

Description

Technical Field

[0001] The invention relates to the field of sanding inner and outer rings of rubber-based friction plates, in particular to a sanding machine for inner and outer rings of rubber-based friction plates. Background Art

[0002] During the preparation of the rubber-based friction plate, there will be many burrs remaining on the inner and outer rings that need to be polished off, which is usually achieved by sanding.

[0003] Currently, there is no equipment on the market that can sand multiple rubber-based friction plates simultaneously, nor is it possible to polish both the outer and inner rings with a single device.

[0004] The existing rubber-based friction plate is mainly sanded by simple tools and manual labor. During the sanding process, each rubber-based friction plate is sanded separately. Only when the sanding of one rubber-based friction plate is completed can the sanding of the next friction plate be carried out.

[0005] The existing sanding of rubber-based friction plates is mainly done manually, which is prone to problems such as uncontrolled sanding quality, sanding leakage, low sanding efficiency, high labor intensity and high labor costs.

[0006] At the same time, the existing rubber-based friction plate sanding still has the problem that the inner and outer rings need to be sanded separately by outer ring sanding equipment and inner ring sanding equipment, which results in complicated procedures, low processing efficiency, high equipment cost and labor cost. Summary of the Invention

[0007] In view of the shortcomings of the existing technology, the present invention provides a sanding machine for the inner and outer rings of rubber-based friction plates, which can effectively solve the problems of high labor cost, high equipment cost and low processing efficiency in the existing sanding of the inner and outer rings of rubber-based friction plates.

[0008] The technical solution adopted by the present invention to solve the technical problem is: a rubber-based friction plate inner and outer ring sanding machine, characterized in that: it includes a frame, a liftable product positioning seat is provided on the frame, a left fixing device and a right fixing device are respectively provided on the left and right sides of the product positioning seat, an outer ring sanding mechanism is provided on the frame above the product positioning seat; and an inner ring sanding mechanism is provided on the left side of the product positioning seat.

[0009] The product positioning seat is used to place the product positioning groove of the product to be sanded. The product to be sanded can be vertically mounted on the product positioning groove. Multiple products to be sanded can be placed on the product positioning groove at the same time. Each product to be sanded is placed closely on the product positioning groove, and the whole is a tubular structure arranged along the X-axis.

[0010] The left fixing device and the right fixing device are respectively adapted to the outer side walls of the product to be sanded at the leftmost end and the rightmost end of the product placement groove, and are used to apply force to both ends of the tubular structure to clamp the tubular structure;

[0011] The inner ring sanding mechanism is adapted to the tubular structure; the inner ring sanding mechanism is provided with an inner ring sanding cylinder capable of X-axial movement and rotational movement, and the inner ring sanding cylinder is provided with an inner ring sanding sheet capable of moving therewith; the inner ring sanding cylinder can be extended in and out relative to the inner ring of the tubular structure, and the inner ring sanding sheet is adapted to the inner ring of the tubular structure;

[0012] The outer ring sanding structure is provided with a sanding wheel capable of multi-axial movement, and the sanding wheel is adapted to the outer ring of the tubular structure and is used to sand the outer ring of the product to be sanded;

[0013] When sanding the inner circle, the product positioning seat rises to the highest position, the left and right fixing devices clamp the tubular structure, and the inner circle sanding cylinder simultaneously performs X-axial movement and rotational movement, passing through the left end to the right end of the tubular structure; during the rotation of the inner circle sanding cylinder, the inner circle sanding disc rotates synchronously to complete the inner circle sanding;

[0014] When sanding the outer ring, the product positioning seat will be lowered to the low position, the left fixing device and the right fixing device will clamp the tubular structure, the inner ring sanding cylinder will drive the tubular structure to rotate as a whole, and the sanding wheel will move to sand the outer ring of the tubular structure.

[0015] In order to be flexibly adjusted according to the size of the rubber-based friction plate, the product positioning groove can meet the needs of rubber-based friction plates of different sizes and can be lifted and lowered stably and reliably, the product positioning seat includes a group of lifting positioning cylinders arranged on the frame, and the product positioning groove is arranged on the piston part of the lifting positioning cylinder; the product positioning groove includes a positioning plate arranged on the piston part of the lifting positioning cylinder; a group of front positioning seats and rear positioning seats whose positions can be adjusted along the Y-axis are arranged on the positioning plate; the detachable device on the front positioning seat has a front support plate arranged along the X-axis, and the detachable device on the rear positioning seat has a rear support plate arranged along the X-axis; the spacing between the front support plate and the rear support plate is adapted to the outer tooth portion of the tubular structure.

[0016] Furthermore, two external teeth in the external tooth portion of the product to be sanded are respectively mounted on the top end surfaces of the front support plate and the rear support plate; the spacing between the front support plate and the rear support plate is adjustable, and the rubber-based friction plates that constitute the tubular structure are coaxially and at the same angle arranged on the front support plate and the rear support plate.

[0017] In order to achieve movable fixation of the tubular structure and ensure stability and reliability, the left fixing device includes a left fixing plate arranged on the frame, a clamping plate arranged along the X-axis can be detachably mounted on the left fixing plate, a semicircular notch is provided at the front end of the clamping plate, a rotatable left positioning cylinder is provided in the semicircular notch, and an annular limiting groove adapted to the semicircular notch is formed around the outer side of the left positioning cylinder; the left positioning cylinder is a combined type; the inner diameter of the left positioning cylinder toward one end of the tubular structure is larger than the inner ring of the tubular structure, and the outer diameter is smaller than the outer ring of the tubular structure;

[0018] In order to improve the reliability and rationality of the structure, the rubber-based friction plate can be better given way when taking and placing it, and at the same time, the clamping and synchronous rotation during sanding are not affected, the right fixing device includes a giving way cylinder arranged on the frame, the piston portion of the giving way cylinder is provided with a giving way fixing seat that can move in the Y-axis direction with it, the frame is provided with a giving way guide rail adapted to the giving way fixing seat, and the bottom of the giving way fixing seat is provided with a giving way guide groove adapted to the giving way guide rail; the giving way fixing seat is provided with a right clamping cylinder that can move therewith, the piston portion of the right clamping cylinder is provided with a right positioning shaft that can move therewith in the X-axis direction, and the right positioning shaft is provided with a rotatable right positioning cylinder, the inner diameter of the right positioning cylinder facing one end of the tubular structure is larger than the inner ring of the tubular structure, and the outer diameter is smaller than the outer ring of the tubular structure;

[0019] The inner diameters of the left positioning cylinder and the right positioning cylinder are larger than the diameter of the inner ring sanding cylinder, and the left positioning cylinder and the right positioning cylinder are rotatable;

[0020] The inner ring sanding mechanism includes an inner ring sanding guide rail provided on a machine frame, an inner ring sanding machine base capable of X-axis movement provided on the inner ring sanding guide rail, an inner ring sanding motor provided on the inner ring sanding machine base, and an inner ring sanding cylinder and a shaft of the inner ring sanding motor connected;

[0021] One end of the inner ring sanding cylinder close to the inner ring sanding motor is provided with a clamping ring adapted to the left side wall of the left positioning cylinder.

[0022] In order to realize the multi-axial movement of the sand tube wheel and realize the indexing control when the sand tube wheel rotates, the outer ring sanding mechanism includes an outer ring fixing frame arranged on the frame, and the outer ring fixing frame is arranged behind the product positioning seat; the outer ring lifting cylinder is provided on the outer ring fixing frame, and the piston part of the outer ring lifting cylinder is provided with a sanding positioning seat that can be lifted and lowered therewith, and the sanding positioning seat is provided with a sanding travel seat and a gear servo motor, and the gear servo motor is used to drive the sanding travel seat to perform X-axial movement, and the sanding positioning seat is provided with a grinding wheel motor, and the grinding wheel motor is connected to the sanding wheel, and the gear servo motor has a built-in indexing encoder.

[0023] To ensure that each rubber-based friction plate in the tubular structure can sand the outer ring, the inner sanding cylinder rotates at the same angle during sanding, and the tubular structure rotates along with it. After each rotation, the inner sanding cylinder and the tubular structure stop at that angle, and the sanding wheel then performs an X-axial movement relative to the tubular structure to complete the sanding of the outer ring of the tubular structure at that angle. The inner sanding cylinder then drives the tubular structure to rotate to the next angle again, and the sanding wheel performs the next angle sanding, and so on, until the outer ring of the entire tubular structure is sanded. In addition, adjusting the angle of the tubular structure is easier than adjusting the angle of the sanding wheel, and the function is more stable and reliable.

[0024] The beneficial effects of the present invention are as follows: 1. Automatic sanding of the inner and outer rings of the rubber-based friction plate is achieved through the cooperation of the outer ring sanding mechanism and the inner ring sanding mechanism, which can solve the problems of complex procedures, low sanding efficiency, high labor intensity, and high labor and equipment costs when the inner and outer rings of the existing rubber-based friction plate are sanded manually by cooperating with inner ring sanding equipment, outer ring sanding equipment or simple tools.

[0025] 2. The product positioning groove provides initial positioning support for the product being sanded. The spacing between the front and rear support plates ensures that each rubber-based friction plate is positioned at the same angle in the product positioning groove, ensuring that the teeth and the grooves between them align in a straight line. During outer ring sanding, the angles of each rubber-based friction plate are kept consistent, ensuring that each X-axis movement of the sanding wheel completes sanding of each groove in all rubber-based friction plates that make up the entire tubular structure, significantly improving sanding efficiency.

[0026] 3. The product positioning seat can be raised to support the rubber-based friction plate to ensure smooth sanding of the inner ring; when lowered, it is separated from the rubber-based friction plate, so that the tubular structure composed of the rubber-based friction plate can rotate normally to achieve sanding of the outer ring.

[0027] 4. The inner ring sanding mechanism cooperates with the left fixing device, the right fixing device and the liftable product positioning seat to realize the sanding of the inner ring. After the inner ring is sanded, the outer ring sanding mechanism cooperates with the left fixing device, the right fixing device and the inner ring sanding mechanism to complete the sanding of the outer ring. The entire rubber-based friction plate inner and outer ring sanding machine can continuously sand the inner and outer rings, which improves the sanding efficiency and avoids the problem of high equipment cost caused by using different equipment for sanding the inner and outer rings respectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the present invention.

[0029] Figure 2 For the present invention Figure 1 A magnified schematic diagram of part A in the figure.

[0030] Figure 3 It is a structural schematic diagram of the present invention from another angle.

[0031] Figure 4 This is a diagram showing the positional relationship between one model of the rubber-based friction plate and the product positioning groove.

[0032] Figure 5 This is a diagram showing the positional relationship between another model of rubber-based friction plate and product positioning groove.

[0033] Figure 6 This is a diagram showing the positional relationship between another model of rubber-based friction plate and product positioning groove.

[0034] Among them, 1. Frame, 3. Product positioning groove, 4. Product to be sanded, 5. Tubular structure, 6. Tooth groove, 7. Inner ring sanding cylinder, 9. Sanding wheel, 10. Lifting positioning cylinder, 11. Positioning plate, 12. Front positioning seat, 13. Rear positioning seat, 14. Front support plate, 15. Rear support plate, 17. Clamping plate, 18. Semicircular notch, 19. Left positioning cylinder, 20. Annular limiting groove, 22. Make way fixed seat, 23. Make way guide rail, 25. Right clamping cylinder, 26. Right positioning shaft, 27. Right positioning cylinder, 29. Inner ring sanding machine base, 30. Inner ring sanding motor, 31. Clamping ring, 32. Outer ring fixing frame, 34. Outer ring lifting cylinder, 35. Sanding positioning seat.

[0035] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0036] Examples, such as Figures 1 to 6 The rubber-based friction plate inner and outer ring sanding machine shown in the figure includes a frame 1, a liftable product positioning seat is provided on the frame 1, and left and right fixing devices are provided on the left and right sides of the product positioning seat respectively. The frame 1 is provided with an outer ring sanding mechanism above the product positioning seat; the frame 1 is provided with an inner ring sanding mechanism on the left side of the product positioning seat;

[0037] The product positioning seat is used to place the product positioning groove 3 of the product 4 to be sanded. The product 4 to be sanded can be vertically mounted on the product positioning groove 3. Multiple products 4 to be sanded can be placed on the product positioning groove 3 at the same time. Each product 4 to be sanded is closely arranged on the product positioning groove 3, and the whole is a tubular structure 5 arranged along the X-axis.

[0038] The left fixing device and the right fixing device are respectively adapted to the outer side walls of the product 4 to be sanded at the leftmost end and the product 4 to be sanded at the rightmost end of the product placement groove, and are used to apply force to both ends of the tubular structure 5 to clamp the tubular structure 5;

[0039] The inner ring sanding mechanism is adapted to the tubular structure 5; the inner ring sanding mechanism is provided with an inner ring sanding cylinder 7 capable of X-axial movement and rotational movement, and the inner ring sanding cylinder 7 is provided with an inner ring sanding sheet capable of moving therewith; the inner ring sanding cylinder 7 can be extended and extended relative to the inner ring of the tubular structure 5, and the inner ring sanding sheet is adapted to the inner ring of the tubular structure 5;

[0040] The outer ring sanding structure is provided with a sanding wheel 9 capable of multi-axial movement, and the sanding wheel 9 is adapted to the outer ring of the tubular structure 5 and is used to sand the outer ring of the product to be sanded 4;

[0041] When sanding the inner ring, the product positioning seat rises to the highest position, the left and right fixing devices clamp the tubular structure 5, and the inner ring sanding cylinder 7 performs X-axial movement and rotational movement simultaneously, passing through the left end to the right end of the tubular structure 5; during the rotation of the inner ring sanding cylinder 7, the inner ring sanding disc rotates synchronously to complete the inner ring sanding;

[0042] When sanding the outer ring, the product positioning seat will be lowered to the low position, the left fixing device and the right fixing device will clamp the tubular structure 5, the inner ring sanding cylinder 7 will drive the tubular structure 5 to rotate as a whole, and the sanding wheel 9 will move to sand the outer ring of the tubular structure 5.

[0043] The product positioning seat includes a group of lifting and positioning cylinders 10 arranged on the frame 1, and the product positioning groove 3 is arranged on the piston part of the lifting and positioning cylinder 10; the product positioning groove 3 includes a positioning plate 11 arranged on the piston part of the lifting and positioning cylinder 10; the positioning plate 11 is provided with a group of front positioning seats 12 and rear positioning seats 13 whose positions can be adjusted along the Y-axis direction; the front positioning seat 12 is provided with a detachable front support plate 14 arranged along the X-axis direction, and the rear positioning seat 13 is provided with a detachable rear support plate 15 arranged along the X-axis direction; the spacing between the front support plate 14 and the rear support plate 15 is adapted to the outer tooth portion of the tubular structure 5.

[0044] Two external teeth of the outer tooth portion of the product to be sanded 4 are mounted on the top end surfaces of the front support plate 14 and the rear support plate 15, respectively. The spacing between the front support plate 14 and the rear support plate 15 is adjustable, and the rubber-based friction plates that constitute the tubular structure 5 are coaxially and angularly arranged on the front support plate 14 and the rear support plate 15. This ensures that various types of rubber-based friction plates can be positioned by the front support plate 14 and the rear support plate 15, and that the rubber-based friction plates are coaxially and angularly arranged.

[0045] The left fixing device includes a left fixing plate provided on the frame 1, on which a clamping plate 17 arranged along the X-axis direction is detachably mounted. A semicircular notch 18 is provided at the front end of the clamping plate 17, and a rotatable left positioning cylinder 19 is provided in the semicircular notch 18. An annular limiting groove 20 adapted to the semicircular notch 18 is formed around the outer side of the left positioning cylinder 19; the left positioning cylinder 19 is a modular type; the inner diameter of the left positioning cylinder 19 at the end facing the tubular structure 5 is larger than the inner circle of the tubular structure 5, and the outer diameter is smaller than the outer circle of the tubular structure 5;

[0046] The right fixing device includes a yielding cylinder arranged on the frame 1, the piston portion of the yielding cylinder is provided with a yielding fixed seat 22 that can move along with it in the Y-axis, the frame 1 is provided with a yielding guide rail 23 adapted to the yielding fixed seat 22, and the bottom of the yielding fixed seat 22 is provided with a yielding guide groove adapted to the yielding guide rail 23; the yielding fixed seat 22 is provided with a right clamping cylinder 25 that can move along with it, the piston portion of the right clamping cylinder 25 is provided with a right positioning shaft 26 that can move along with it in the X-axis, and the right positioning shaft 26 is provided with a rotatable right positioning cylinder 27, the inner diameter of the right positioning cylinder 27 facing the end of the tubular structure 5 is larger than the inner ring of the tubular structure 5, and the outer diameter is smaller than the outer ring of the tubular structure 5;

[0047] The inner diameters of the left positioning cylinder 19 and the right positioning cylinder 27 are larger than the diameter of the inner ring sanding cylinder 7, and the left positioning cylinder 19 and the right positioning cylinder 27 are rotatable;

[0048] The inner ring sanding mechanism includes an inner ring sanding guide rail and an inner ring sanding drive mounted on the frame 1. The inner ring sanding guide rail is equipped with an inner ring sanding machine base 29 capable of X-axis motion. The inner ring sanding machine base 29 is connected to the inner ring sanding drive, and the inner ring sanding drive drives the X-axis motion. An inner ring sanding motor 30 is mounted on the inner ring sanding machine base 29. The inner ring sanding drum 7 is connected to the inner ring sanding motor 30 shaft; the inner ring sanding motor 30 drives the inner ring sanding drum 7 to rotate.

[0049] An end of the inner ring sanding cylinder 7 close to the inner ring sanding motor 30 is provided with a clamping ring 31 adapted to the left side wall of the left positioning cylinder 19.

[0050] The outer ring sanding mechanism includes an outer ring fixing frame 32 arranged on the frame 1, and the outer ring fixing frame 32 is arranged behind the product positioning seat; an outer ring lifting cylinder 34 is arranged on the outer ring fixing frame 32, and the piston part of the outer ring lifting cylinder 34 is provided with a sanding positioning seat 35 that can be lifted and lowered therewith, and a sanding travel seat and a gear servo motor are provided on the sanding positioning seat 35. The gear servo motor is used to drive the sanding travel seat to perform X-axial movement. A grinding wheel motor is provided on the sanding positioning seat 35, and the grinding wheel motor is connected to the sanding wheel 9. The gear servo motor has a built-in indexing encoder.

[0051] When sanding the outer ring, the inner ring sanding cylinder 7 rotates at the same angle, and the tubular structure 5 rotates with the inner ring sanding cylinder 7. After each rotation of an angle, the inner ring sanding cylinder 7 and the tubular structure 5 maintain the angle and stop, and then the sanding wheel performs an X-axial movement relative to the tubular structure 5 to complete the sanding of the outer ring of the tubular structure 5 at that angle. Then, the inner ring sanding cylinder 7 drives the tubular structure 5 to rotate to the next angle again, and the sanding wheel 9 performs sanding at the next angle, and so on until the sanding of the outer ring of the entire tubular structure 5 is completed.

[0052] Working principle:

[0053] When sanding the outer ring: the product positioning seat is raised to the highest position, and the rubber-based friction plate to be sanded is moved to the product positioning groove 3 through auxiliary equipment (such as a pipe column, each rubber-based friction plate is sleeved on the pipe column), and is mounted on the front support plate 14 and the rear support plate 15. By adjusting the spacing between the front support plate 14 and the rear support plate 15, it is ensured that each rubber-based friction plate is just mounted on it, and after being mounted on it, the tooth grooves 6 between the outer teeth of each rubber-based friction plate are coaxially arranged (mainly through the front support plate 14 and the rear support plate 15). the spacing between the support plates 15); when placing the rubber-based friction plates, the leftmost rubber-based friction plate is connected to the left positioning cylinder 19, and the right side wall of the left positioning cylinder 19 is against the left side wall of the leftmost rubber-based friction plate; the right clamping cylinder 25 is driven by the giving cylinder to drive the right positioning cylinder 27 so that its left end portion is connected to the right side portion of the rightmost rubber-based friction plate; thereby completing the left and right clamping positioning of the entire tubular structure 5 composed of multiple (dozens, hundreds, or several hundred) rubber-based friction plates.

[0054] After the left and right clamping positions are completed, the inner ring sanding machine base 29 is driven by a drive device (drive motor) to move, and the inner ring sanding motor 30 rotates to achieve simultaneous extension and rotation of the inner ring sanding cylinder 7 relative to the tubular structure 5. The rotation of the inner ring sanding cylinder 7 during extension (translation along the X-axis) drives the inner ring sanding disc on it to translate and rotate along the X-axis, completing the entire inner ring sanding of the tubular structure 5 from one end to the other. When the inner ring sanding cylinder 7 moves to the rightmost end and connects with the inner cavity of the right positioning cylinder 27, the inner ring sanding is complete.

[0055] Outer ring sanding: After the inner and outer ring sanding is completed, the product positioning seat descends, and the rotation of the inner ring sanding motor 30, through the cooperation between the clamping ring 31 and the left positioning cylinder 19, and the cooperation between the inner ring sanding cylinder 7 and the right positioning cylinder 27, will drive the left positioning cylinder 19, the right positioning cylinder 27 and the tubular structure 5 to rotate. When the tubular structure 5 rotates together with the inner ring sanding cylinder 7, after each rotation angle, the inner ring sanding cylinder 7 and the tubular structure 5 maintain the angle and stop. Then the sanding wheel performs an X-axial movement relative to the tubular structure 5 to complete the sanding of the outer ring of the tubular structure 5 at that angle (the tooth grooves 6 of each rubber-based friction plate at that angle). Then the inner ring sanding cylinder 7 drives the tubular structure 5 to rotate to the next angle again, and the sanding wheel 9 performs sanding at the next angle. This process is repeated until the sanding of the entire outer ring of the tubular structure 5 is completed.

[0056] After the exterior sanding is complete, the product positioning seat rises, and the tubular structure 5 is reinstalled on the product positioning seat. The drive device drives the inner ring upper base to move along the X-axis until it is free of the tubular structure 5. Subsequently, the right clamping cylinder 25 retracts, and the clearance cylinder drives the right clamping cylinder 25 and the right positioning cylinder 27 along the Y-axis to their initial position to clear the gap. Finally, the operator uses auxiliary equipment to remove the entire tubular structure 5 from the product positioning seat.

[0057] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not preclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0058] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A rubber-based friction plate inner and outer ring sander, characterized by: The machine comprises a frame, on which a product positioning seat that can be raised and lowered is provided. The frame is provided with a left fixing device and a right fixing device on the left and right sides of the product positioning seat respectively. The frame is provided with an outer ring sanding mechanism above the product positioning seat; the frame is provided with an inner ring sanding mechanism on the left side of the product positioning seat; The product positioning seat is used to place the product positioning groove of the product to be sanded. The product to be sanded can be vertically mounted on the product positioning groove. Multiple products to be sanded can be placed on the product positioning groove at the same time. Each product to be sanded is placed closely on the product positioning groove, and the whole is a tubular structure arranged along the X-axis. The left fixing device and the right fixing device are respectively adapted to the outer side walls of the product to be sanded at the leftmost end and the rightmost end of the product placement groove, and are used to apply force to both ends of the tubular structure to clamp the tubular structure; The inner ring sanding mechanism is adapted to the tubular structure; the inner ring sanding mechanism is provided with an inner ring sanding cylinder capable of X-axial movement and rotational movement, and the inner ring sanding cylinder is provided with an inner ring sanding sheet capable of moving therewith; the inner ring sanding cylinder can be extended in and out relative to the inner ring of the tubular structure, and the inner ring sanding sheet is adapted to the inner ring of the tubular structure; The outer ring sanding structure is provided with a sanding wheel capable of multi-axial movement, and the sanding wheel is adapted to the outer ring of the tubular structure and is used to sand the outer ring of the product to be sanded; When sanding the inner circle, the product positioning seat rises to the highest position, the left and right fixing devices clamp the tubular structure, and the inner circle sanding cylinder simultaneously performs X-axial movement and rotational movement, passing through the left end to the right end of the tubular structure; during the rotation of the inner circle sanding cylinder, the inner circle sanding disc rotates synchronously to complete the inner circle sanding; When sanding the outer ring, the product positioning seat will be lowered to the low position, the left fixing device and the right fixing device will clamp the tubular structure, the inner ring sanding cylinder will drive the tubular structure to rotate as a whole, and the sanding wheel will move to sand the outer ring of the tubular structure.

2. The rubber-based friction plate inner and outer ring sander according to claim 1, characterized in that: The product positioning seat includes a group of lifting and positioning cylinders arranged on the frame, and the product positioning groove is arranged on the piston part of the lifting and positioning cylinder; the product positioning groove includes a positioning plate arranged on the piston part of the lifting and positioning cylinder; the positioning plate is provided with a group of front positioning seats and rear positioning seats whose positions can be adjusted along the Y-axis; the detachable device on the front positioning seat has a front support plate arranged along the X-axis, and the detachable device on the rear positioning seat has a rear support plate arranged along the X-axis; the spacing between the front support plate and the rear support plate is adapted to the outer tooth portion of the tubular structure.

3. The rubber-based friction plate inner and outer ring sander according to claim 2, characterized in that: Two external teeth in the external tooth portion of the product to be sanded are respectively mounted on the top end surfaces of the front support plate and the rear support plate. The spacing between the front support plate and the rear support plate is adjustable. The rubber-based friction plates that constitute the tubular structure are coaxially and at the same angle arranged on the front support plate and the rear support plate.

4. The rubber-based friction plate inner and outer ring sander according to claim 3, characterized in that: The left fixing device includes a left fixing plate arranged on the frame, a detachable device on the left fixing plate having a clamping plate arranged along the X-axis, a semicircular notch formed at the front end of the clamping plate, a rotatable left positioning cylinder provided in the semicircular notch, and an annular limiting groove adapted to the semicircular notch formed around the outer side of the left positioning cylinder; the left positioning cylinder is a combined type; the inner diameter of the left positioning cylinder toward one end of the tubular structure is larger than the inner ring of the tubular structure, and the outer diameter is smaller than the outer ring of the tubular structure; The right fixing device includes a yielding cylinder arranged on the frame, the piston portion of the yielding cylinder is provided with a yielding fixing seat that can move in the Y-axis direction therewith, the frame is provided with a yielding guide rail adapted to the yielding fixing seat, and the bottom of the yielding fixing seat is provided with a yielding guide groove adapted to the yielding guide rail; the yielding fixing seat is provided with a right clamping cylinder that can move therewith, the piston portion of the right clamping cylinder is provided with a right positioning shaft that can move in the X-axis direction therewith, the right positioning shaft is provided with a rotatable right positioning cylinder, the inner diameter of the right positioning cylinder facing the end of the tubular structure is larger than the inner ring of the tubular structure, and the outer diameter is smaller than the outer ring of the tubular structure; The inner diameters of the left positioning cylinder and the right positioning cylinder are larger than the diameter of the inner ring sanding cylinder, and the left positioning cylinder and the right positioning cylinder are rotatable; The inner ring sanding mechanism includes an inner ring sanding guide rail provided on a machine frame, an inner ring sanding machine base capable of X-axis movement provided on the inner ring sanding guide rail, an inner ring sanding motor provided on the inner ring sanding machine base, and an inner ring sanding cylinder and a shaft of the inner ring sanding motor connected; One end of the inner ring sanding cylinder close to the inner ring sanding motor is provided with a clamping ring adapted to the left side wall of the left positioning cylinder.

5. The rubber-based friction plate inner and outer ring sander according to claim 4, characterized in that: The outer ring sanding mechanism includes an outer ring fixing frame arranged on the frame, and the outer ring fixing frame is arranged behind the product positioning seat; an outer ring lifting cylinder is arranged on the outer ring fixing frame, and the piston part of the outer ring lifting cylinder is provided with a sanding positioning seat that can be lifted and lowered therewith, and a sanding travel seat and a gear servo motor are provided on the sanding positioning seat, and the gear servo motor is used to drive the sanding travel seat to perform X-axial movement, and a grinding wheel motor is provided on the sanding positioning seat, and the grinding wheel motor is connected to the sanding wheel, and the gear servo motor has a built-in indexing encoder.

6. The rubber-based friction plate inner and outer ring sander according to claim 5, characterized in that: When sanding the outer ring, the inner ring sanding cylinder rotates at the same angle, and the tubular structure rotates with the inner ring sanding cylinder. After each rotation of an angle, the inner ring sanding cylinder and the tubular structure maintain the angle and stop, and then the sanding tube wheel performs an X-axial movement relative to the tubular structure to complete the sanding of the outer ring of the tubular structure at that angle. Then the inner ring sanding cylinder drives the tubular structure to rotate to the next angle again, and the sanding wheel performs sanding at the next angle, and so on until the sanding of the outer ring of the entire tubular structure is completed.

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