Polishing assembly and polishing device

Abstract

The invention discloses a polishing assembly and a polishing device, and belongs to the technical field of polishing equipment.The polishing assembly comprises a polishing belt, a moving mechanism and a pressing mechanism, and the moving mechanism comprises a first moving driving piece and a first support connected to the first moving driving piece; the first moving driving piece is used for driving the first support to move so as to change the polishing position. The pressing mechanism comprises a second moving driving part, a second support and a pressing rod library, the second moving driving part is connected between the first support and the second support, the pressing rod library is connected to the second support, and the second moving driving part is used for driving the pressing rod library to enable the polishing belt to be attached to the workpiece. The polishing belt is attached to the workpiece through the pressing rod library in the pressing mechanism, the polishing position is changed through the moving mechanism, the uneven surface of the workpiece can be mechanically polished, and the beneficial effects of being efficient, environmentally friendly and wide in application range are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of polishing equipment, and in particular to a polishing component and a polishing device. Background Art

[0002] In modern industry and high-tech fields, metal bellows, as an important connection and transmission element, are widely used in large-scale equipment such as civil equipment, aerospace engineering, and nuclear power facilities. Due to its unique wave structure, metal bellows show excellent flexibility and sealing performance when subjected to pressure, vibration, and temperature changes. However, in view of the special requirements of different applications, the roughness of the inner and outer surfaces of metal bellows must meet certain standards to ensure its performance and life in actual use.

[0003] In order to achieve this goal, the existing polishing technologies mainly include magnetic needle polishing, chemical polishing and manual polishing. Although these technologies meet the needs of metal bellows surface polishing to a certain extent, they each have significant disadvantages and limitations.

[0004] Magnetic needle polishing technology uses the friction between the magnetic needle and the surface of the metal bellows to implement the polishing operation. However, in actual operation, it is often difficult to accurately control the polishing force and uniformity of magnetic needle polishing, resulting in water stains and magnetic needles remaining on the surface of the metal bellows after polishing, especially in the troughs of the bellows. This not only increases the difficulty and frequency of secondary cleaning operations, but also limits the application of magnetic needle polishing technology in high-precision projects (such as aerospace, nuclear power, etc.).

[0005] Chemical polishing technology achieves the polishing effect through the reaction of chemical agents with the surface of metal bellows. Although this method improves the polishing efficiency to a certain extent, it cannot be manually intervened in the polishing process, resulting in insufficient reaction in some troughs and uneven polishing effects. In addition, the chemical agents used in chemical polishing cause damage to the environment and do not conform to the current green and environmentally friendly industrial development trend, so they are gradually being eliminated.

[0006] Although manual polishing can make up for the shortcomings of mechanical polishing and chemical polishing to a certain extent, its operation efficiency is low, the operation objects are limited, and the operator's experience requirements are high. This not only affects the improvement of production efficiency, but also increases production costs and quality control difficulties.

[0007] In summary, the existing metal bellows polishing technology has deficiencies in polishing effect, operation convenience, environmental protection and applicability. Therefore, it is particularly important to develop a metal bellows polishing technology that is efficient, environmentally friendly and suitable for a variety of specifications and precision requirements. Summary of the invention

[0008] The purpose of the present invention is to provide a polishing assembly and a polishing device to solve the problems existing in the above-mentioned prior art. The polishing belt is fitted to the workpiece by utilizing the pressure rod library in the clamping mechanism, and the polishing position is changed by utilizing the moving mechanism. The uneven surface of the workpiece can be mechanically polished, and it has the advantages of high efficiency, environmental protection and wide applicability.

[0009] To achieve the above object, the present invention provides the following solutions:

[0010] The present invention provides a polishing assembly, including a polishing belt, a moving mechanism and a clamping mechanism, wherein the moving mechanism includes a first moving driving member and a first bracket connected to the first moving driving member, the first moving driving member is used to drive the first bracket to move to change the polishing position; the clamping mechanism includes a second moving driving member, a second bracket and a pressure rod library, the second moving driving member is connected between the first bracket and the second bracket, the pressure rod library is connected to the second bracket, and the second moving driving member is used to drive the pressure rod library to fit the polishing belt to a workpiece.

[0011] In one embodiment, the pressure rod library includes a deflection motor and pressure rods of different specifications, the deflection motor is mounted on the second bracket, and the pressure rods are connected to the rotating shaft of the deflection motor.

[0012] In one embodiment, the polishing belt is connected to the first bracket and moves with the movement of the first bracket. The polishing belt is an annular structure. The clamping mechanism is located on the inner diameter side of the annular structure. The first moving drive member adopts a telescopic electric cylinder.

[0013] In one embodiment, it also includes a linear module, which is provided with a mounting seat, and the polishing belt is installed on the mounting seat. The polishing belt is in a straight line shape. The linear module is used to drive the polishing belt to move toward or away from the workpiece, and the first moving drive component adopts a screw nut structure.

[0014] The present invention also provides a polishing device, comprising a main frame, a supporting structure, a rotating drive structure and a polishing assembly as described above, wherein the supporting structure is rotatably mounted on the main frame, and the supporting structure is used to clamp a workpiece; the rotating drive structure is connected to the supporting structure, and the rotating drive structure is used to drive the supporting structure to rotate; and the polishing assembly is fixedly mounted on the main frame.

[0015] In one embodiment, the polishing assembly includes an inner surface polishing assembly and an outer surface polishing assembly, wherein the inner surface polishing assembly is disposed on the inner diameter side of the workpiece, and the outer surface polishing assembly is disposed on the outer diameter side of the workpiece.

[0016] In one embodiment, the support structure includes a support plate and a third movable driving member mounted on the support plate, and a movable end of the third movable driving member is connected to an outer clamping claw, and the outer clamping claw is used to fit the outer diameter side of the workpiece.

[0017] In one embodiment, the support structure further includes a fourth movable driving member, a movable end of which is connected to an inner clamping jaw, the inner clamping jaw being used to fit the inner diameter side of the workpiece, and the inner clamping jaw is arranged corresponding to the outer clamping jaw.

[0018] In one embodiment, an internal visual inspection device is also included, which includes a fifth movable driving member and an internal detection head connected to the fifth movable driving member, the fifth movable driving member is installed in the middle of the supporting plate, and the internal detection head is located on the inner diameter side of the workpiece.

[0019] In one embodiment, it also includes an external visual detection device, which includes a ring rail, a sixth movable driving member installed on the ring rail, and an external detection head connected to the sixth movable driving member. The ring rail is installed on a support member outside the support plate, and the support member is fixedly installed on the main frame. The external detection head is located on the outer diameter side of the workpiece.

[0020] Compared with the prior art, the present invention has achieved the following technical effects:

[0021] The present invention utilizes the pressure rod library in the clamping mechanism to fit the polishing belt to the workpiece, and utilizes the moving mechanism to change the polishing position. Through the cooperation of the clamping mechanism and the moving mechanism, the uneven surface of the workpiece can be mechanically polished. It has the advantages of high efficiency, environmental protection and wide applicability. When applied to the polishing of corrugated pipes, the inner and outer surfaces of the corrugated pipes can be polished to achieve better polishing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a schematic diagram of the overall structure of the polishing device in an embodiment of the present invention;

[0024] Figure 2 It is a schematic structural diagram of the polishing device from another angle in an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of a support structure in an embodiment of the present invention;

[0026] Figure 4 Schematic diagram of an inner surface polishing assembly in an embodiment of the present invention;

[0027] Figure 5 Schematic diagram of an outer surface polishing assembly in an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the installation of the polishing belt and the linear module in an embodiment of the present invention;

[0029] Among them, 1. main frame; 2. support structure; 3. rotation drive structure; 4. inner surface polishing assembly; 5. outer surface polishing assembly; 6. inner visual inspection device; 7. outer visual inspection device;

[0030] 11. first frame; 12. second frame; 13. seventh moving driving member;

[0031] 21. Support plate; 22. Third movable driving member; 23. External claw; 24. Fourth movable driving member; 25. Internal claw;

[0032] 41. polishing belt; 42. first movable driving member; 43. first bracket; 44. second movable driving member; 45. second bracket; 46. pressure rod library; 47. deflection motor;

[0033] 51. Screw nut structure; 52. Linear module; 53. Eighth moving drive member;

[0034] 61. fifth movable driving member; 62. inner detection head;

[0035] 71. Annular rail; 72. Sixth movable driving member; 73. External detection head. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] The purpose of the present invention is to provide a polishing assembly and a polishing device to solve the problems existing in the prior art. The polishing belt is fitted to the workpiece by utilizing the pressure rod library in the clamping mechanism, and the polishing position is changed by utilizing the moving mechanism. The uneven surface of the workpiece can be mechanically polished, and the device has the advantages of high efficiency, environmental protection and wide applicability.

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] like Figure 1 to Figure 6 As shown, the present invention provides a polishing assembly, including a polishing belt 41, a moving mechanism and a clamping mechanism. The polishing belt 41 is made of abrasive materials such as scouring pads and fine sandpaper, which is pollution-free to the environment and has low replacement cost. The moving mechanism includes a first mobile driving member 42 and a first bracket 43. The fixed end of the first mobile driving member 42 can be installed on a fixing device such as a main frame 1 to fix the first mobile driving member 42. The movable end of the first mobile driving member 42 is connected to the first bracket 43. Through the telescopic movement of the first mobile driving member 42, the first bracket 43 can be driven to move to change the polishing position. The clamping mechanism includes a second mobile driving member 44, a second bracket 45 and a pressure rod library 46. The second mobile driving member 44 is connected between the first bracket 43 and the second bracket 45. The fixed end of the second mobile driving member 44 is connected to the first bracket 43, and the movable end of the second mobile driving member 44 is connected to the second bracket 45. When the second mobile driving member 44 telescopically moves, it can drive the second bracket 45 to move. The pressure rod library 46 is connected to the second bracket 45, so that the movement of the second movable driving member 44 can drive the pressure rod library 46 to move. Through the movement of the pressure rod library 46, the polishing belt 41 can be attached to the workpiece by the pressure rod library 46. As the workpiece moves or rotates relative to the polishing belt 41, the polishing belt 41 can be used to polish the surface of the workpiece.

[0040] The workpiece can be a cylindrical workpiece, a plate-shaped workpiece or an irregularly shaped workpiece. When the workpiece is a bellows (mainly a metal bellows, or other bellows that need to be polished), the peaks and troughs on the inner surface of the bellows and the peaks and troughs on the outer surface can be mechanically polished by the polishing belt 41 under the action of the pressure rod library 46. When polishing the inner surface of the bellows, the polishing assembly is located on the inner diameter side of the bellows, and when polishing the outer surface of the bellows, the polishing assembly is located on the outer diameter side of the bellows. The moving direction of the moving mechanism is parallel to the axial direction of the bellows, and the moving direction of the clamping mechanism is parallel to the radial direction of the bellows. Through the combined movement of the moving mechanism and the clamping mechanism, various parts of the bellows can be polished.

[0041] The present invention utilizes the pressure rod library 46 in the clamping mechanism to fit the polishing belt 41 to the workpiece, and utilizes the moving mechanism to change the polishing position. Through the cooperation of the clamping mechanism and the moving mechanism, the uneven surface of the workpiece can be mechanically polished. It has the advantages of high efficiency, environmental protection and wide applicability. When applied to the polishing of corrugated pipes, the inner surface and outer surface of the corrugated pipe can be polished simultaneously or successively to achieve a better polishing effect.

[0042] In one embodiment, the pressure rod library 46 includes a deflection motor 47 and pressure rods of different specifications. The different specifications of the pressure rods may include parameters such as length, diameter, and spacing, so that the pressure rods can match the sizes of workpieces of different models or the diameters of bellows. The deflection motor 47 is installed on the second bracket 45. When the second bracket 45 moves, it can drive the deflection motor 47 to move synchronously. At this time, it can drive the pressure rod connected to the rotating shaft of the deflection motor 47 to move, thereby pressing the polishing belt 41 to fit the surface of the workpiece.

[0043] In one embodiment, if Figure 4 As shown, the polishing assembly is an inner surface polishing assembly 4. At this time, the polishing belt 41 is connected to the first bracket 43 and moves with the movement of the first bracket 43. The first bracket 43 is driven by the first mobile driver 42. The first mobile driver 42 can adopt a telescopic electric cylinder. The polishing belt 41 is surrounded by an annular structure, and the clamping mechanism is located on the inner diameter side of the annular structure. When the second mobile driver 44 in the clamping mechanism drives the pressure rod library 46 to move, it can be pushed from the inner diameter side of the polishing belt 41 to the outer diameter side, and then the polishing belt 41 is attached to the inner surface of the bellows. The end of the pressure rod included in the pressure rod library 46 can be adapted to a pressure sensing detection device to control the extension and retraction of the second mobile driver 44 in real time, so as to avoid damage to the surface of the bellows due to excessive contact pressure.

[0044] In one embodiment, if Figure 5 and Figure 6 As shown, the polishing assembly is an outer surface polishing assembly 5, which has most of the same components as the inner surface polishing assembly 4, and differs in the shape of the polishing belt 41. In addition, it also includes a linear module 52, which is arranged in groups, and each linear module 52 is provided with a mounting seat, and the polishing belt 41 is installed on the mounting seat. After the two ends of the linear module 52 are fixed by the mounting seat, the polishing belt 41 is in a straight line shape. When the workpiece is a corrugated pipe, the length direction of the straight line is in the same direction as the axial direction of the corrugated pipe. The linear modules 52 at both ends of the polishing belt 41 are respectively installed at the two ends of the eighth moving drive member 53, and the two linear modules 52 can be driven to move closer to or farther from each other through the eighth moving drive member 53, so that the installation and removal of the polishing belt 41 can be facilitated. The linear module 52 is used to drive the polishing belt 41 to move toward or away from the workpiece. When the linear module 52 moves toward the workpiece, the polishing belt 41 can be brought close to the workpiece, and then the second movable drive member 44 is moved through the pressure bar library 46 to make the polishing belt 41 fit the surface of the workpiece. When the linear module 52 moves away from the workpiece, it is convenient to put the workpiece in place. In addition, unlike the inner surface polishing assembly 4, the first movable drive member 42 can adopt a screw nut structure 51, which can drive the second movable drive member 44 to change position, thereby changing the polishing position.

[0045] like Figure 1 to Figure 6As shown, the present invention also provides a polishing device, including a main frame 1, a support structure 2, a rotation drive structure 3 and a polishing assembly as described above. The main frame 1 can adopt a frame-type frame for carrying and supporting various components. The support structure 2 is rotatably mounted on the main frame 1, and the workpiece is clamped by the support structure 2. When clamping the workpiece, a conventional clamping method or clamping method can be adopted. The rotation drive structure 3 is connected to the support structure 2. The rotation drive structure 3 can adopt a motor. The rotation drive structure 3 can drive the support structure 2 to rotate, thereby driving the workpiece to rotate. The polishing assembly is fixedly mounted on the main frame 1, thereby forming a working state in which the workpiece rotates relative to the main frame 1 and the polishing assembly is fixed relative to the main frame 1, so that the polishing belt 41 can rotate relative to the surface of the workpiece to realize the polishing process. The polishing assembly can only adopt the inner surface polishing assembly 4, or only adopt the outer surface polishing assembly 5, or simultaneously adopt the inner surface polishing assembly 4 and the outer surface polishing assembly 5.

[0046] In one embodiment, the polishing assembly includes an inner surface polishing assembly 4 and an outer surface polishing assembly 5. In this case, the workpiece adopts a bellows, the inner surface polishing assembly 4 is arranged on the inner diameter side of the workpiece, and the outer surface polishing assembly 5 is arranged on the outer diameter side of the workpiece. The inner surface and the outer surface of the bellows can be polished simultaneously or successively.

[0047] In one embodiment, the support structure 2 is respectively located at both ends of the bellows, and the bellows is placed vertically. The support structure 2 clamps and fixes the bellows at the upper and lower ends of the bellows. At the same time, in order to facilitate the bellows to enter and exit the clamping area, the support structure 2 can not only rotate under the action of the rotating drive structure 3, but also can perform vertical lifting operations.

[0048] In one embodiment, the main frame 1 includes a first frame 11 at the bottom, a second frame 12 at the top, and a seventh movable driving member 13 connected between the first frame 11 and the second frame 12. The seventh movable driving member 13 can drive the second frame 12 to rise or fall. The two groups of supporting structures 2 are respectively installed on the first frame 11 and the second frame 12, so that the movement of the seventh movable driving member 13 can drive the supporting structures 2 to approach or separate from each other, thereby realizing the installation and disassembly of workpieces (such as corrugated pipes).

[0049] In one embodiment, the support structure 2 includes a support disk 21 and a third movable driving member 22 installed on the support disk 21. The fixed end of the third movable driving member 22 is connected to the support disk 21. The rotation of the support disk 21 can drive the third movable driving member 22 to rotate synchronously. The movable end of the third movable driving member 22 is connected to an outer clamping claw 23. Through the telescopic movement of the third movable driving member 22, the outer clamping claw 23 can be attached to the outer diameter side of the workpiece, and then the workpiece is clamped and fixed on the support disk 21 by the outer clamping claw 23. In addition, when the support structure 2 rotates, the workpiece can be driven to rotate at the same time.

[0050] In one embodiment, the support structure 2 further includes a fourth mobile driving member 24, the fixed end of which is connected to the support disk 21. Similarly, the rotation of the support disk 21 can drive the fourth mobile driving member 24 to rotate synchronously. The movable end of the fourth mobile driving member 24 is connected to an inner clamping claw 25. Through the telescopic movement of the fourth mobile driving member 24, the inner clamping claw 25 can be fitted to the inner diameter side of the workpiece. When the workpiece is a solid workpiece, the workpiece can be clamped and fixed only by the outer clamping claw 23. When the workpiece is a hollow workpiece such as a corrugated pipe, the workpiece may be deformed or damaged by only relying on the outer clamping claw 23. Therefore, the inner clamping claw 25 and the outer clamping claw 23 can be set at the same time, and the inner clamping claw 25 and the outer clamping claw 23 are set correspondingly to be able to clamp the pipe wall of the corrugated pipe. It should be noted that the inner clamping claw 25 and the outer clamping claw 23 should have a curvature consistent with the corrugated pipe, and further, different models of inner clamping claws 25 and outer clamping claws 23 can be replaced to match different corrugated pipes.

[0051] In one embodiment, it also includes an inner visual inspection device 6, which is located on the inner diameter side of the bellows and is mainly used to detect the polishing effect of the inner surface of the bellows. After the polishing operation is completed or during the process, the operation effect is timely inspected. For unqualified parts, secondary polishing operations can be performed in time to reduce manual operations. The inner visual inspection device 6 includes a fifth mobile drive member 61 and an inner detection head 62 connected to the fifth mobile drive member 61. The fixed end of the fifth mobile drive member 61 is installed in the middle of the support plate 21, and the inner detection head 62 is connected to the movable end of the fifth mobile drive member 61. The fifth mobile drive member 61 can drive the inner detection head 62 to move along the axial direction of the bellows, and then the inner detection head 62 can be used to perform a comprehensive inspection of the inner surface of each axial position of the bellows. It should be noted that: if the detection direction of the inner detection head 62 is radially toward the inner surface of the bellows, in order to ensure that the inner detection head 62 performs a comprehensive circumferential detection of the inner surface of the bellows, the inner detection head 62 is required to have a rotatable function, for example, a rotating motor is provided between the inner detection head 62 and the fifth movable drive member 61; or, the fixed end of the fifth movable drive member 61 is installed on the main frame 1 through a connecting structure, so as to utilize the support structure 2 to drive the rotation of the bellows, thereby realizing the relative rotation of the bellows and the inner detection head 62, and then realizing a comprehensive circumferential detection.

[0052] In one embodiment, it also includes an external visual inspection device 7, which is located on the outer diameter side of the bellows and is mainly used to detect the polishing effect of the outer surface of the bellows. After the polishing operation is completed or during the process, the operation effect is timely inspected. For unqualified parts, secondary polishing operations can be carried out in time to reduce manual operations. The external visual inspection device 7 includes a ring rail 71, a sixth mobile drive member 72 installed on the ring rail 71, and an external detection head 73 connected to the sixth mobile drive member 72. The fixed end of the sixth mobile drive member 72 can move in a circle on the ring rail 71, and the external detection head 73 is connected to the movable end of the sixth mobile drive member 72. The sixth mobile drive member 72 can drive the external detection head 73 to move along the axial direction of the bellows, and then the external detection head 73 can be used to perform a comprehensive inspection of the outer surface of the bellows at various axial positions. The annular rail 71 is installed on the support member outside the support plate 21, and the support member is fixedly installed on the main frame 1, so that when the annular rail 71 moves, the sixth movable driving member 72 can move circumferentially around the corrugated pipe on the outer diameter side of the corrugated pipe to perform a comprehensive circumferential inspection of the outer surface of the corrugated pipe.

[0053] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A polishing assembly, characterized in that: include: Polishing belt; A moving mechanism, the moving mechanism comprising a first moving driving member and a first bracket connected to the first moving driving member, the first moving driving member being used to drive the first bracket to move so as to change the polishing position; And a clamping mechanism, the clamping mechanism includes a second movable driving member, a second bracket and a pressure rod library, the second movable driving member is connected between the first bracket and the second bracket, the pressure rod library is connected to the second bracket, and the second movable driving member is used to drive the pressure rod library to fit the polishing belt to the workpiece.

2. The polishing assembly according to claim 1, characterized in that: The pressure rod library comprises a deflection motor and pressure rods of different specifications. The deflection motor is mounted on the second bracket, and the pressure rods are connected to the rotating shaft of the deflection motor.

3. The polishing assembly according to claim 2, characterized in that: The polishing belt is connected to the first bracket and moves with the movement of the first bracket. The polishing belt is an annular structure. The clamping mechanism is located on the inner diameter side of the annular structure. The first moving drive member adopts a telescopic electric cylinder.

4. The polishing assembly according to claim 2, characterized in that: It also includes a linear module, which is provided with a mounting seat, the polishing belt is mounted on the mounting seat, the polishing belt is in a straight line shape, the linear module is used to drive the polishing belt to move toward or away from the workpiece, and the first moving drive member adopts a screw nut structure.

5. A polishing device, characterized in that: include: Main frame; A supporting structure, wherein the supporting structure is rotatably mounted on the main frame and is used for clamping a workpiece; A rotation driving structure, the rotation driving structure is connected to the support structure, and the rotation driving structure is used to drive the support structure to rotate; And the polishing assembly as described in any one of claims 1-4, wherein the polishing assembly is fixedly mounted on the main frame.

6. The polishing device according to claim 5, characterized in that: The polishing assembly includes an inner surface polishing assembly and an outer surface polishing assembly. The inner surface polishing assembly is arranged on the inner diameter side of the workpiece, and the outer surface polishing assembly is arranged on the outer diameter side of the workpiece.

7. The polishing device according to claim 5, characterized in that: The support structure includes a support plate and a third movable driving member installed on the support plate. The movable end of the third movable driving member is connected to an outer clamping claw, and the outer clamping claw is used to fit the outer diameter side of the workpiece.

8. The polishing device according to claim 7, characterized in that: The support structure further includes a fourth movable driving member, a movable end of which is connected to an inner clamping claw, the inner clamping claw is used to fit the inner diameter side of the workpiece, and the inner clamping claw is arranged corresponding to the outer clamping claw.

9. The polishing device according to claim 7, characterized in that: It also includes an internal visual inspection device, which includes a fifth movable driving member and an internal detection head connected to the fifth movable driving member, the fifth movable driving member is installed in the middle of the supporting plate, and the internal detection head is located on the inner diameter side of the workpiece.

10. The polishing device according to claim 7, characterized in that: It also includes an external visual detection device, which includes a ring rail, a sixth movable driving member installed on the ring rail, and an external detection head connected to the sixth movable driving member. The ring rail is installed on a support member outside the support plate, and the support member is fixedly installed on the main frame. The external detection head is located on the outer diameter side of the workpiece.

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