Upper polishing disc machining device of double-face polishing equipment and machining method of upper polishing disc machining device

Abstract

The invention belongs to the technical field of polishing disc machining devices, and discloses an upper polishing disc machining device of double-face polishing equipment and a machining method thereof.The upper polishing disc machining device comprises a machining table, a bearing seat is arranged at the top end of the machining table, a first fixing assembly is arranged in the bearing seat, and a second fixing assembly and a discharging assembly are arranged at the top end of the machining table; the first fixing assembly comprises two fixing plates arranged in the bearing seat, connecting rods are fixedly connected to one sides of the two fixing plates, moving plates are fixedly mounted at one ends of the two connecting rods, the two moving plates are arranged on the outer wall of a first threaded rod, and the first threaded rod is rotationally mounted in the bearing seat. One end of the first threaded rod is fixedly connected with a rotating block, the rotating block is arranged on one side of the bearing base, the two ends of abrasive paper are fixed through the top plates at the corresponding positions of the left side and the right side, multiple pieces of abrasive paper with different thicknesses are fixed through the multiple top plates, the machining efficiency is improved, and the grinding quality and precision are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of polishing disc processing devices, in particular to an upper polishing disc processing device of double-sided polishing equipment and a processing method thereof. Background Art

[0002] Double-sided polishing equipment is a highly efficient equipment used for polishing planes, spherical surfaces, high-precision parts, etc. Double-sided polishing equipment consists of a main machine, a polishing disc, a drive motor, a transmission device, a workbench, a polishing liquid system, a control system and other auxiliary components. Among them, the polishing disc is divided into an upper polishing disc and a lower polishing disc. When working, the workpiece is clamped between the upper and lower polishing discs. Through the friction between the polishing disc and the workpiece and the action of the abrasive, the burrs, oxide layers and other impurities on the surface of the workpiece are removed to achieve the purpose of polishing;

[0003] During long-term use, the upper polishing disc may lose its original processing effect due to wear or damage. At this time, the polishing disc needs to be repaired and refurbished by re-grinding the polishing surface to restore its surface flatness and finish, thereby ensuring the accuracy and surface quality of the processed workpiece;

[0004] In the current process of repairing the upper polishing disc, a traditional manual grinding method is generally used. This method mainly relies on workers to use sandpaper of various coarseness and fineness to achieve the purpose of repairing the polishing disc through repeated grinding. However, this method is not only inefficient, but also easily causes worker fatigue, thereby affecting the quality and accuracy of grinding. Summary of the invention

[0005] The object of the present invention is to provide an upper polishing disc processing device and a processing method thereof for double-sided polishing equipment, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solution: an upper polishing disc processing device of a double-sided polishing device comprises a processing table, a bearing seat is arranged at the top of the processing table, a first fixing component is arranged inside the bearing seat, and a second fixing component and a material discharge component are arranged at the top of the processing table;

[0007] The first fixing assembly includes a fixing plate arranged inside the bearing seat, two fixing plates are symmetrically arranged, one side of the two fixing plates are fixedly connected to a connecting rod, one end of the two connecting rods are fixedly installed with a movable plate, the two movable plates are arranged on the outer wall of the first threaded rod, the first threaded rod is rotatably installed inside the bearing seat, one end of the first threaded rod is fixedly connected to a rotating block, and the rotating block is arranged on one side of the bearing seat;

[0008] The second fixing assembly includes a fixing seat arranged at the top of the processing table, and two fixing seats are symmetrically arranged. Both fixing seats are slidably installed on the top of the processing table through a moving assembly. A plurality of pull plates are arranged above the fixing seat, and the bottom end of each pull plate is fixedly connected to a second connecting shaft, and the bottom end of the second connecting shaft is fixedly connected to the first connecting shaft, and a first spring is arranged outside the first connecting shaft, and the bottom end of the first connecting shaft is fixedly connected to a top plate, and a bottom plate is arranged below the top plate, and the bottom plate is fixedly installed on one side of the fixing seat;

[0009] The moving assembly comprises a moving seat arranged at the bottom end of the fixed seat, the inner thread of the moving seat is connected with a second threaded rod, and a second motor is installed at one end of the second threaded rod.

[0010] As a further technical solution of the present invention, a rotating shaft is fixedly connected to the bottom end of the bearing seat, the rotating shaft is rotatably installed inside the processing table, and a first motor is arranged at the bottom end of the rotating shaft.

[0011] As a further technical solution of the present invention, one of the fixed seat and the movable seat is slidably connected, and the other fixed seat and the movable seat is fixedly connected.

[0012] As a further technical solution of the present invention, a magnetic plate is provided on one side of one of the fixing seats, and the magnetic plate is fixedly installed on the top of the processing table.

[0013] As a further technical solution of the present invention, a limiting shaft is slidably installed inside the fixed seat, and the limiting shaft is fixedly installed inside the movable seat.

[0014] As a further technical solution of the present invention, a second spring is arranged on the outer wall of the limiting shaft, and the second spring is arranged on one side of the bottom of the fixing seat.

[0015] As a further technical solution of the present invention, the unloading assembly includes a connecting plate arranged at the top of the processing table, a pressure rod is fixedly installed on the bottom end of the connecting plate, reciprocating screws are threadedly connected on both sides of the connecting plate, a gear is fixedly installed on the outer wall of the reciprocating screw, one side of the gear is meshingly connected with a rack plate, and the rack plate is arranged on the top of the fixed seat.

[0016] As a further technical solution of the present invention, the rack plate is installed on the outer wall of the second connecting shaft, and the rack plate is slidably connected to the second connecting shaft.

[0017] As a further technical solution of the present invention, a wedge rod is fixedly installed at the bottom end of the connecting plate, and the wedge rod is arranged on one side of the pulling plate.

[0018] The processing method of the upper polishing disc processing device of the double-sided polishing equipment comprises the following steps:

[0019] S1: When processing the upper polishing disc, first place the upper polishing disc on the top of the bearing seat, and make the connecting shaft of the upper polishing disc embedded in the groove of the bearing seat, then rotate the rotating block, the rotation of the rotating block drives the rotation of the first threaded rod, the rotation of the first threaded rod drives the movement of the moving plate, the movement of the moving plate drives the movement of the connecting rod, the movement of the connecting rod drives the movement of the fixed plate, so that the two fixed plates move inward to fix the connecting shaft of the upper polishing disc;

[0020] S2: Then install the sandpaper, pull the pull plate upward, and the movement of the pull plate drives the top plate to move upward through the second connecting shaft, so that the top plate is separated from the bottom plate and the sandpaper is placed therein, and finally the elastic potential energy of the first spring causes the top plate to move downward to cooperate with the bottom plate to press the sandpaper, and multiple sandpapers of different coarseness and fineness are fixed through multiple top plates;

[0021] S3: After the sandpaper is installed, the second motor drives the second threaded rod to rotate, the rotation of the second threaded rod drives the movement of the movable seat, the movement of the movable seat drives the movement of the fixed seat, and the movement of the fixed seat drives the sandpaper to move to one side of the bearing seat;

[0022] S4: simultaneously starting the first motor to drive the rotating shaft to rotate, the rotation of the rotating shaft drives the rotation of the bearing seat, and the upper polishing disc is driven to rotate through the first fixing component to contact with the sandpaper for polishing;

[0023] S5: When the fixed seat continues to move toward one side of the connecting plate, the movement of the fixed seat drives the movement of the rack plate, the meshing of the rack plate and the gear drives the gear to rotate, the rotation of the gear drives the rotation of the reciprocating screw rod, the rotation of the reciprocating screw rod drives the connecting plate to move downward, the movement of the connecting plate drives the movement of the pressure rod, so that the pressure rod presses the sandpaper downward;

[0024] S6: At the same time, the movement of the fixed seat drives the movement of the pull plate. When the pull plate contacts one end of the wedge rod, it moves upward guided by the inclined surface of the wedge rod. The movement of the pull plate drives the movement of the first connecting shaft through the movement of the second connecting shaft. The movement of the first connecting shaft drives the movement of the top plate, loosening the sandpaper, making it convenient for the pressure rod to press the sandpaper downward and take it out to complete the processing.

[0025] The beneficial effects of the present invention are as follows:

[0026] 1. The present invention is configured by the cooperation of the first fixing assembly, the second fixing assembly and the moving assembly. When processing the upper polishing disc, the upper polishing disc is first placed on the top of the bearing seat, and the connecting shaft of the upper polishing disc is embedded in the groove of the bearing seat. Then the rotating block is rotated, and the rotation of the rotating block drives the rotation of the first threaded rod, and the rotation of the first threaded rod drives the movement of the moving plate, and the movement of the moving plate drives the movement of the connecting rod, and the movement of the connecting rod drives the movement of the fixed plate, so that the two fixed plates move inward to fix the connecting shaft of the upper polishing disc, and then the sandpaper is installed, and the pull plate is pulled upward. The movement of the pull plate drives the top plate to move upward through the second connecting shaft. The sandpaper is placed in the upper polishing disc by moving the upper plate upward to separate the upper plate from the lower plate, and finally the upper plate is moved downward by the elastic potential energy of the first spring to cooperate with the lower plate to press the sandpaper. After the sandpaper is installed, the second motor drives the second threaded rod to rotate, and the rotation of the second threaded rod drives the movement of the moving seat, and the movement of the moving seat drives the movement of the fixed seat, and the movement of the fixed seat drives the sandpaper to move to one side of the bearing seat, so as to grind the surface of the upper polishing disc, fix the two ends of the sandpaper by the upper plates at the corresponding positions on the left and right sides, and fix multiple sandpapers of different coarseness and fineness by multiple top plates, which not only improves the processing efficiency, but also improves the quality and accuracy of grinding.

[0027] 2. The present invention provides a magnetic plate. During the processing of the upper polishing disk, when the fixed seat moves to one side of the magnetic plate, the magnetism of the two causes the fixed seat to move toward the side of the magnetic plate to fit with it. The movement of the fixed seat drives the top plate to move, so that the top plate and the bottom plate clamp the sandpaper, unfold and tighten it, to prevent the sandpaper from having insufficient tension when being fixed by the second fixing component. This will not only make the sandpaper easily loose or displaced during the polishing process, accelerate the wear of the sandpaper, thereby reducing its service life, but also cause it to have insufficient contact with the surface of the polishing disk, thereby affecting the grinding effect and polishing quality. When the sandpaper moves to the top of the bearing seat, the sandpaper is tightened, which helps to improve the polishing quality.

[0028] 3. Through the setting of the blanking component, the present invention, when the fixed seat moves to one side of the connecting plate, the movement of the fixed seat drives the movement of the rack plate, the meshing of the rack plate and the gear drives the gear to rotate, the rotation of the gear drives the rotation of the reciprocating screw rod, the rotation of the reciprocating screw rod drives the connecting plate to move downward, the movement of the connecting plate drives the movement of the pressure rod, so that the pressure rod presses the sandpaper downward, which is convenient for taking out the used sandpaper for maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention;

[0031] Figure 3 For the present invention Figure 2 A schematic diagram of the structure enlargement in the middle;

[0032] Figure 4 It is a schematic cross-sectional view of the structure of the bearing seat of the present invention;

[0033] Figure 5 This is a schematic diagram of the structure of the connecting plate of the present invention;

[0034] Figure 6 It is a schematic cross-sectional view of the structure of the fixing seat of the present invention;

[0035] Figure 7 It is a structural schematic diagram of the fixing seat of the present invention.

[0036] In the figure: 1. processing table; 2. bearing seat; 3. fixed plate; 4. connecting rod; 5. moving plate; 6. first threaded rod; 7. rotating block; 8. rotating shaft; 9. first motor; 10. fixed seat; 11. bottom plate; 12. top plate; 13. first connecting shaft; 14. second connecting shaft; 15. first spring; 16. pulling plate; 17. moving seat; 18. second threaded rod; 19. magnetic plate; 20. limiting shaft; 21. second spring; 22. connecting plate; 23. pressure rod; 24. gear; 25. reciprocating screw rod; 27. rack plate; 28. second motor; 29. ​​wedge rod. DETAILED DESCRIPTION

[0037] 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.

[0038] like Figures 1 to 7 As shown, in the embodiment of the present invention, the upper polishing disc processing device of the double-sided polishing equipment includes a processing table 1, a bearing seat 2 is arranged at the top of the processing table 1, a first fixing component is arranged inside the bearing seat 2, and a second fixing component and a material discharge component are arranged at the top of the processing table 1;

[0039] The first fixing assembly includes a fixing plate 3 arranged inside the bearing seat 2, two fixing plates 3 are symmetrically arranged, one side of the two fixing plates 3 is fixedly connected to a connecting rod 4, one end of the two connecting rods 4 is fixedly installed with a moving plate 5, the two moving plates 5 are arranged on the outer wall of the first threaded rod 6, the first threaded rod 6 is rotatably installed inside the bearing seat 2, one end of the first threaded rod 6 is fixedly connected to a rotating block 7, and the rotating block 7 is arranged on one side of the bearing seat 2;

[0040] The second fixing assembly includes a fixing seat 10 arranged at the top of the processing table 1, and two fixing seats 10 are symmetrically arranged. Both fixing seats 10 are slidably installed on the top of the processing table 1 through a moving assembly. A plurality of pull plates 16 are arranged above the fixing seat 10, and the bottom end of each pull plate 16 is fixedly connected to a second connecting shaft 14, and the bottom end of the second connecting shaft 14 is fixedly connected to a first connecting shaft 13, and a first spring 15 is arranged outside the first connecting shaft 13, and the bottom end of the first connecting shaft 13 is fixedly connected to a top plate 12, and a bottom plate 11 is arranged below the top plate 12, and the bottom plate 11 is fixedly installed on one side of the fixing seat 10;

[0041] The moving assembly includes a moving seat 17 arranged at the bottom end of the fixed seat 10 . The inner thread of the moving seat 17 is connected with a second threaded rod 18 . A second motor 28 is installed at one end of the second threaded rod 18 .

[0042] Two threads are arranged on the outer wall of the first threaded rod 6, and the two threads are arranged in opposite directions, so as to make the two moving plates 5 move in opposite directions;

[0043] The first fixed component, the second fixed component and the moving component are arranged in cooperation with each other. When processing the upper polishing disc, the upper polishing disc is first placed on the top of the bearing seat 2, and the connecting shaft of the upper polishing disc is embedded in the groove of the bearing seat 2. Then, the rotating block 7 is rotated. The rotation of the rotating block 7 drives the rotation of the first threaded rod 6. The rotation of the first threaded rod 6 drives the movement of the moving plate 5. The movement of the moving plate 5 drives the movement of the connecting rod 4. The movement of the connecting rod 4 drives the movement of the fixed plate 3, so that the two fixed plates 3 move inward to fix the connecting shaft of the upper polishing disc.

[0044] Then install the sandpaper, pull the pull plate 16 upward, and the movement of the pull plate 16 drives the top plate 12 to move upward through the second connecting shaft 14, so that the top plate 12 is separated from the bottom plate 11 and the sandpaper is placed therein, and finally the elastic potential energy of the first spring 15 causes the top plate 12 to move downward and cooperate with the bottom plate 11 to press the sandpaper;

[0045] After the sandpaper is installed, the second motor 28 drives the second threaded rod 18 to rotate, the rotation of the second threaded rod 18 drives the movement of the movable seat 17, the movement of the movable seat 17 drives the movement of the fixed seat 10, and the movement of the fixed seat 10 drives the sandpaper to move to one side of the bearing seat 2, so as to grind the surface of the upper polishing disc;

[0046] The two ends of the sandpaper are fixed by the top plates 12 at the corresponding positions on the left and right sides, and multiple sandpapers of different coarseness and fineness are fixed by multiple top plates 12, which not only improves the processing efficiency, but also improves the quality and precision of grinding.

[0047] like Figure 4As shown, a rotating shaft 8 is fixedly connected to the bottom end of the bearing seat 2 , and the rotating shaft 8 is rotatably installed inside the processing table 1 . A first motor 9 is disposed at the bottom end of the rotating shaft 8 .

[0048] When the upper polishing disc is processed, the first motor 9 is started to drive the rotating shaft 8 to rotate. The rotation of the rotating shaft 8 drives the rotation of the supporting seat 2, and the upper polishing disc is driven to rotate through the first fixed component, and contacts with the sandpaper for polishing, thereby improving the processing efficiency of the device.

[0049] like Figures 1 to 7 As shown, one of the fixed seats 10 and the movable seat 17 is slidably connected, and the other fixed seat 10 and the movable seat 17 is fixedly connected.

[0050] like Figure 2 and Figure 3 As shown, a magnetic plate 19 is provided on one side of one of the fixing seats 10 , and the magnetic plate 19 is fixedly installed on the top of the processing table 1 .

[0051] The magnetic plate 19 is magnetically connected to the side wall of the fixing base 10;

[0052] During the processing of the upper polishing disk, when the fixed seat 10 moves to one side of the magnetic plate 19, the magnetism of the two makes the fixed seat 10 move toward the side of the magnetic plate 19 and fit it. The movement of the fixed seat 10 drives the top plate 12 to move, so that the top plate 12 and the bottom plate 11 clamp the sandpaper and unfold and tighten it, to prevent the sandpaper from having insufficient tension when being fixed by the second fixing component. Not only will the sandpaper be easily loosened or displaced during the grinding process, accelerating the wear of the sandpaper and thus reducing its service life, but it will also cause it to have insufficient contact with the surface of the polishing disk, thereby affecting the grinding effect and grinding quality. Tightening the sandpaper when the sandpaper moves to the top of the supporting seat 2 helps to improve the grinding quality.

[0053] like Figure 6 and Figure 7 As shown, a limiting shaft 20 is slidably installed inside the fixed seat 10 , and the limiting shaft 20 is fixedly installed inside the movable seat 17 .

[0054] like Figure 6 and Figure 7 As shown, a second spring 21 is disposed on the outer wall of the limiting shaft 20 , and the second spring 21 is disposed on one side of the bottom of the fixing seat 10 .

[0055] When the fixing seat 10 moves toward one side of the magnetic plate 19, the bottom of the fixing seat 10 squeezes the second spring 21 to deform so that it stores elastic potential energy. When the fixing seat 10 moves away from the magnetic plate 19, the elastic potential energy is released by the second spring 21 to move the fixing seat 10 back to its original position.

[0056] like Figure 1 , Figure 2 and Figure 5As shown, the unloading assembly includes a connecting plate 22 arranged at the top of the processing table 1, a pressure rod 23 is fixedly installed at the bottom end of the connecting plate 22, reciprocating screws 25 are threadedly connected to both sides of the connecting plate 22, a gear 24 is fixedly installed on the outer wall of the reciprocating screw 25, and a rack plate 27 is meshedly connected to one side of the gear 24, and the rack plate 27 is arranged at the top of the fixed seat 10.

[0057] Through the setting of the blanking assembly, when the fixed seat 10 moves to one side of the connecting plate 22, the movement of the fixed seat 10 drives the movement of the rack plate 27, the engagement of the rack plate 27 with the gear 24 drives the gear 24 to rotate, the rotation of the gear 24 drives the rotation of the reciprocating screw rod 25, the rotation of the reciprocating screw rod 25 drives the connecting plate 22 to move downward, the movement of the connecting plate 22 drives the movement of the pressure rod 23, so that the pressure rod 23 presses the sandpaper downward, which is convenient for taking out the used sandpaper for maintenance.

[0058] like Figures 1 to 7 As shown, the rack plate 27 is installed on the outer wall of the second connecting shaft 14 , and the rack plate 27 is slidably connected to the second connecting shaft 14 .

[0059] like Figure 1 , Figure 2 and Figure 5 As shown, a wedge rod 29 is fixedly mounted on the bottom end of the connecting plate 22 , and the wedge rod 29 is arranged on one side of the pulling plate 16 .

[0060] Through the setting of the wedge rod 29, when the fixed seat 10 moves toward one side of the connecting plate 22, the movement of the fixed seat 10 drives the movement of the pull plate 16. When the pull plate 16 contacts one end of the wedge rod 29, it moves upward guided by the inclined surface of the wedge rod 29. The movement of the pull plate 16 drives the movement of the first connecting shaft 13 through the movement of the second connecting shaft 14. The movement of the first connecting shaft 13 drives the movement of the top plate 12, thereby loosening the sandpaper, making it convenient for the pressure rod 23 to take out the sandpaper downward.

[0061] The processing method of the upper polishing disc processing device of the double-sided polishing equipment comprises the following steps:

[0062] S1: When processing the upper polishing disc, first place the upper polishing disc on the top of the bearing seat 2, and make the connecting shaft of the upper polishing disc embedded in the groove of the bearing seat 2, then rotate the rotating block 7, the rotation of the rotating block 7 drives the rotation of the first threaded rod 6, the rotation of the first threaded rod 6 drives the movement of the moving plate 5, the movement of the moving plate 5 drives the movement of the connecting rod 4, the movement of the connecting rod 4 drives the movement of the fixed plate 3, so that the two fixed plates 3 move inward to fix the connecting shaft of the upper polishing disc;

[0063] S2: Then install the sandpaper, pull the pull plate 16 upward, and the movement of the pull plate 16 drives the top plate 12 to move upward through the second connecting shaft 14, so that the top plate 12 is separated from the bottom plate 11 and the sandpaper is placed therein, and finally the elastic potential energy of the first spring 15 causes the top plate 12 to move downward to cooperate with the bottom plate 11 to press the sandpaper, and multiple sandpapers of different coarseness and fineness are fixed by multiple top plates 12;

[0064] S3: After the sandpaper is installed, the second motor 28 drives the second threaded rod 18 to rotate, the rotation of the second threaded rod 18 drives the movement of the movable seat 17, the movement of the movable seat 17 drives the movement of the fixed seat 10, and the movement of the fixed seat 10 drives the sandpaper to move to one side of the bearing seat 2;

[0065] S4: simultaneously starting the first motor 9 to drive the rotating shaft 8 to rotate, the rotation of the rotating shaft 8 drives the rotation of the bearing seat 2, and drives the upper polishing disc to rotate through the first fixing assembly, and contacts with the sandpaper for polishing;

[0066] S5: When the fixing seat 10 continues to move toward one side of the connecting plate 22, the movement of the fixing seat 10 drives the movement of the rack plate 27, the meshing of the rack plate 27 with the gear 24 drives the gear 24 to rotate, the rotation of the gear 24 drives the rotation of the reciprocating screw rod 25, the rotation of the reciprocating screw rod 25 drives the connecting plate 22 to move downward, the movement of the connecting plate 22 drives the movement of the pressure rod 23, so that the pressure rod 23 presses the sandpaper downward;

[0067] S6: At the same time, the movement of the fixed seat 10 drives the movement of the pull plate 16. When the pull plate 16 contacts one end of the wedge rod 29, it moves upward guided by the inclined surface of the wedge rod 29. The movement of the pull plate 16 drives the movement of the first connecting shaft 13 through the movement of the second connecting shaft 14. The movement of the first connecting shaft 13 drives the movement of the top plate 12, loosening the sandpaper, making it convenient for the pressure rod 23 to press the sandpaper downward and take it out to complete the processing.

[0068] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An upper polishing disc processing device for a double-sided polishing device, comprising a processing table (1), characterized in that: A bearing seat (2) is arranged at the top of the processing table (1), a first fixing component is arranged inside the bearing seat (2), and a second fixing component and a material removal component are arranged at the top of the processing table (1); The first fixing assembly comprises a fixing plate (3) arranged inside the bearing seat (2), two fixing plates (3) are symmetrically arranged, one side of the two fixing plates (3) is fixedly connected to a connecting rod (4), one end of the two connecting rods (4) is fixedly installed with a movable plate (5), the two movable plates (5) are arranged on the outer wall of a first threaded rod (6), the first threaded rod (6) is rotatably installed inside the bearing seat (2), one end of the first threaded rod (6) is fixedly connected to a rotating block (7), and the rotating block (7) is arranged on one side of the bearing seat (2); The second fixing assembly comprises a fixing seat (10) arranged at the top of the processing table (1), two fixing seats (10) are symmetrically arranged, and the two fixing seats (10) are both slidably installed on the top of the processing table (1) through a moving assembly, and a plurality of pull plates (16) are arranged above the fixing seat (10), and the bottom end of each pull plate (16) is fixedly connected to a second connecting shaft (14), and the bottom end of the second connecting shaft (14) is fixedly connected to a first connecting shaft (13), and a first spring (15) is arranged outside the first connecting shaft (13), and the bottom end of the first connecting shaft (13) is fixedly connected to a top plate (12), and a bottom plate (11) is arranged below the top plate (12), and the bottom plate (11) is fixedly installed on one side of the fixing seat (10); The moving assembly comprises a moving seat (17) arranged at the bottom end of the fixed seat (10); the inner thread of the moving seat (17) is connected to a second threaded rod (18); and a second motor (28) is installed at one end of the second threaded rod (18).

2. The upper polishing plate processing device of the double-sided polishing equipment according to claim 1, characterized in that: The bottom end of the bearing seat (2) is fixedly connected to a rotating shaft (8), the rotating shaft (8) is rotatably mounted inside the processing table (1), and the bottom end of the rotating shaft (8) is provided with a first motor (9).

3. The upper polishing plate processing device of the double-sided polishing equipment according to claim 1, characterized in that: One of the fixed seats (10) is slidably connected to the movable seat (17), and the other fixed seat (10) is fixedly connected to the movable seat (17).

4. The upper polishing plate processing device of the double-sided polishing equipment according to claim 1, characterized in that: A magnetic plate (19) is provided on one side of one of the fixing seats (10), and the magnetic plate (19) is fixedly mounted on the top of the processing table (1).

5. The upper polishing plate processing device of the double-sided polishing equipment according to claim 1, characterized in that: A limiting shaft (20) is slidably mounted inside the fixed seat (10), and the limiting shaft (20) is fixedly mounted inside the movable seat (17).

6. The upper polishing disc processing device of the double-sided polishing equipment according to claim 5, characterized in that: The outer wall of the limiting shaft (20) is provided with a second spring (21), and the second spring (21) is arranged on one side of the bottom of the fixing seat (10).

7. The upper polishing plate processing device of the double-sided polishing equipment according to claim 1, characterized in that: The blanking assembly comprises a connecting plate (22) arranged at the top of the processing table (1), a pressure rod (23) is fixedly installed at the bottom end of the connecting plate (22), both sides of the connecting plate (22) are threadedly connected with a reciprocating screw (25), the outer wall of the reciprocating screw (25) is fixedly installed with a gear (24), one side of the gear (24) is meshingly connected with a rack plate (27), and the rack plate (27) is arranged at the top of the fixed seat (10).

8. The upper polishing plate processing device of the double-sided polishing equipment according to claim 7, characterized in that: The rack plate (27) is mounted on the outer wall of the second connecting shaft (14), and the rack plate (27) is slidably connected to the second connecting shaft (14).

9. The upper polishing plate processing device of the double-sided polishing equipment according to claim 7, characterized in that: A wedge rod (29) is fixedly mounted on the bottom end of the connecting plate (22), and the wedge rod (29) is arranged on one side of the pulling plate (16).

10. A processing method for an upper polishing disc processing device of a double-sided polishing device, the method being applicable to the upper polishing disc processing device of a double-sided polishing device according to claims 1 to 9, characterized in that: The following steps are involved: S1: When processing the upper polishing disc, firstly place the upper polishing disc on the top of the bearing seat (2), and make the connecting shaft of the upper polishing disc embedded in the groove of the bearing seat (2), then rotate the rotating block (7), the rotation of the rotating block (7) drives the rotation of the first threaded rod (6), the rotation of the first threaded rod (6) drives the movement of the movable plate (5), the movement of the movable plate (5) drives the movement of the connecting rod (4), the movement of the connecting rod (4) drives the movement of the fixed plate (3), so that the two fixed plates (3) move inward to fix the connecting shaft of the upper polishing disc; S2: Then, the sandpaper is installed, and the pull plate (16) is pulled upward. The movement of the pull plate (16) drives the top plate (12) to move upward through the second connecting shaft (14), so that the top plate (12) is separated from the bottom plate (11) and the sandpaper is inserted. Finally, the elastic potential energy of the first spring (15) causes the top plate (12) to move downward to cooperate with the bottom plate (11) to press the sandpaper, and multiple sandpapers of different coarseness and fineness are fixed through multiple top plates (12); S3: After the sandpaper is installed, the second motor (28) drives the second threaded rod (18) to rotate, the rotation of the second threaded rod (18) drives the movement of the movable seat (17), the movement of the movable seat (17) drives the movement of the fixed seat (10), and the movement of the fixed seat (10) drives the sandpaper to move toward one side of the bearing seat (2); S4: simultaneously starting the first motor (9) to drive the rotating shaft (8) to rotate, the rotation of the rotating shaft (8) drives the bearing seat (2) to rotate, and the upper polishing disc is driven to rotate through the first fixing component to contact with the sandpaper for polishing; S5: When the fixed seat (10) continues to move toward one side of the connecting plate (22), the movement of the fixed seat (10) drives the rack plate (27) to move, the rack plate (27) meshes with the gear (24) to drive the gear (24) to rotate, the rotation of the gear (24) drives the reciprocating screw rod (25) to rotate, the rotation of the reciprocating screw rod (25) drives the connecting plate (22) to move downward, the movement of the connecting plate (22) drives the pressure rod (23) to move, so that the pressure rod (23) presses the sandpaper downward; S6: At the same time, the movement of the fixed seat (10) drives the movement of the pull plate (16). When the pull plate (16) contacts one end of the wedge rod (29), it moves upwards guided by the inclined surface of the wedge rod (29). The movement of the pull plate (16) drives the movement of the first connecting shaft (13) through the movement of the second connecting shaft (14). The movement of the first connecting shaft (13) drives the movement of the top plate (12), loosening the sandpaper, making it easier for the pressure rod (23) to press the sandpaper downward and take it out, thus completing the processing.

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