Coupling polishing device

Abstract

The present invention relates to the field of coupling polishing, and in particular to a coupling polishing device. The technical problem is that the existing polishing device has a relatively simple structure, which is not comprehensive enough for grinding and polishing the rigid coupling, and it is not convenient to remove the grinding debris attached to the surface of the rigid coupling during the grinding process, which makes it easy for scratches to appear on the inner wall groove of the rigid coupling. The technical solution of the present invention is: a coupling polishing device, including a base, a rigid coupling and a guide rail, a rigid coupling is placed on the top of the base, a through groove is opened in the middle of the rigid coupling, a transverse groove is opened on one side of the rigid coupling, etc., a guide rail is fixed to the top of the base, and the guide rail is vertically arranged. The downward movement of the stabilizing frame will limit the top of the rigid coupling, so that the rigid coupling remains stable, which is convenient for stably grinding the rigid coupling.

Description

Technical Field

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

[0002] A coupling, also known as a coupling, is a mechanical component used to firmly connect the driving shaft and the driven shaft in different mechanisms to rotate together and transmit motion and torque. The coupling needs to be polished during the production and processing of the coupling. However, due to the complex shape of the coupling, the existing polishing device has a simple structure and is usually only able to polish the inner and outer curved surfaces of the coupling, but is not convenient for polishing the slots and openings on the coupling, resulting in insufficient polishing of the rigid coupling. In addition, the existing polishing device is not convenient for removing the grinding debris attached to the surface of the rigid coupling during the grinding process, resulting in scratches on the inner wall groove of the rigid coupling, which in turn causes poor grinding effect. Summary of the invention

[0003] In order to overcome the shortcomings of the existing polishing device, which has a relatively simple structure, is not comprehensive enough for polishing the rigid coupling, is not convenient for removing the grinding debris attached to the surface of the rigid coupling during the grinding process, and causes scratches on the inner wall groove of the rigid coupling, the present invention provides a coupling polishing device which can polish the rigid coupling more comprehensively, remove the grinding debris attached to the surface of the rigid coupling during the grinding process, and has a better grinding effect.

[0004] The technical solution of the present invention is: a coupling polishing device, including a base, a rigid coupling, a guide rail, an electric slider, a mounting frame, a grinding mechanism and a polishing mechanism, a rigid coupling is placed on the top of the base, a through groove is opened in the middle of the rigid coupling, a transverse groove, a vertical groove and four circular grooves are opened on one side of the rigid coupling, a guide rail is fixedly connected to the top of the base, the guide rail is vertically arranged, an electric slider is slidably connected to the guide rail, the mounting frame is fixedly connected to the electric slider, a grinding mechanism is provided on the mounting frame, the grinding mechanism is used to polish the inner wall of the through groove of the rigid coupling, a polishing mechanism is provided on the guide rail, the polishing mechanism is used to polish the inner wall of the transverse groove and the vertical groove of the rigid coupling.

[0005] As a preferred technical solution of the present invention, an arc-shaped protrusion is provided on the top of the base, and the lower part of the rigid coupling contacts the arc-shaped protrusion on the top of the base.

[0006] As a preferred technical solution of the present invention, the grinding mechanism includes a rotating motor, a motor coupling, a rotating roller, a grinding sheet, a stabilizing frame and a blower. The rotating motor is fixedly connected to the mounting frame, the motor coupling is fixedly connected to the output shaft of the rotating motor, the rotating roller is fixedly connected to the bottom end of the motor coupling, the rotating roller is vertically arranged and has a hollow structure inside, a curved surface and a flat surface are provided on the rotating roller, the rotating roller is located directly above the through groove in the middle of the rigid coupling, the grinding sheet is fixedly connected to the curved surface of the rotating roller, the stabilizing frame is fixedly connected to the side of the mounting frame away from the electric slider, the stabilizing frame is located above the rigid coupling, the blower is fixedly connected to the base, and the blower is located directly below the through groove in the middle of the rigid coupling.

[0007] As a preferred technical solution of the present invention, the polishing mechanism includes a guide plate, a limit block, a movable frame, a grinding frame and a round rod. The guide plate is fixedly connected to the upper part of the rotating roller, and a guide groove is opened on the guide plate. Two limit blocks are fixedly connected to the side of the guide rail close to the rigid coupling. The two limit blocks are symmetrically arranged. The two limit blocks have arc-shaped openings on the side close to the rigid coupling. A movable frame is placed between the arc-shaped openings of the two limit blocks. The bottom of the movable frame passes through the base. The grinding frame is fixedly connected to the movable frame. The grinding frame is simultaneously located in the horizontal groove and the vertical groove of the rigid coupling. The top of the grinding frame is slidably connected to a round rod, and the upper part of the round rod is located in the guide groove of the guide plate.

[0008] As a preferred technical solution of the present invention, it also includes a rotating mechanism, which is used to polish the circular groove on the rigid coupling. The rotating mechanism is arranged on the mobile frame, and the rotating mechanism is connected to the base. The rotating mechanism includes a rack, a fixed rod, a speed increaser, a contact plate and a gear. Four racks are fixedly connected to the mobile frame, and two fixed rods are fixedly connected to the top of the base. The two fixed rods are symmetrically arranged, and two speed increasers are fixedly connected to each fixed rod. A contact plate is provided on the output shaft of each speed increaser, and the contact plate is located in the circular groove on the rigid coupling. A gear is provided on the input shaft of each speed increaser, and the rack frame is meshed with the gear.

[0009] As a preferred technical solution of the present invention, it also includes an edge polishing mechanism, which is used to polish the edges of the transverse grooves and vertical grooves of the rigid coupling. The edge polishing mechanism is arranged in a rotating roller. The edge polishing mechanism includes a guide rod, a sliding plate, a reset spring, a scraper, a scraper and a push plate. Two guide rods are fixedly connected to the top of the base, and two pairs of sliding plates are slidably connected to each guide rod. The two sliding plates in each pair of sliding plates are in contact with each other. Reset springs are connected between the four sliding plates and the guide rods. A scraper is fixedly connected between the two sliding plates at the top, and a scraper is fixedly connected to the lower side of the guide plate. A push plate is fixedly connected to each sliding plate, and the push plate is in contact with two push plates located on both sides of the contact plate.

[0010] As a preferred technical solution of the present invention, it also includes an air duct and a hair dryer. Two air ducts are fixedly connected to the top of the base. The two air ducts are symmetrically arranged. Vertical air outlets are opened on one side of the two air ducts close to each other, and a hair dryer is provided on the top of each air duct.

[0011] As a preferred technical solution of the present invention, a cleaning rack is also included. The lower part of the guide rail is provided with the cleaning rack, and the grinding sheet passes through the cleaning rack.

[0012] Beneficial effects: the downward movement of the stabilizing frame will limit the top of the rigid coupling, so that the rigid coupling remains stable and is convenient for stably grinding the rigid coupling. The motor coupling drives the rotating roller and the grinding sheet to rotate, and the grinding sheet grinds the inner wall of the through groove in the middle of the rigid coupling. During the grinding process, the wind blown out by the blower can blow away the grinding debris in the through groove in the middle of the rigid coupling, reduce the scratches on the through groove on the inner wall of the rigid coupling, and the grinding effect is better; the guide plate squeezes the round rod through the guide groove to reciprocate, and the grinding sheet grinds the side of the inner wall of the through groove in the middle of the rigid coupling close to the guide rail, so that the grinding sheet grinds the inner wall of the through groove in the middle of the rigid coupling comprehensively, so that while the grinding sheet grinds the inner wall of the through groove in the middle of the rigid coupling, the grinding frame grinds the horizontal groove and vertical groove of the rigid coupling, so that the grinding and polishing of the rigid coupling is more comprehensive.

[0013] The moving frame drives the rack frame to move back and forth, the rack frame squeezes the gear to reciprocate, and the gear rotation drives the contact plate to rotate back and forth quickly through the speed increaser. When the contact plate rotates, the circular groove on the rigid coupling will be fully polished, further making the rigid coupling more fully polished.

[0014] When the contact plate rotates, the contact plate will squeeze the two sliding plates of the same pair to move away from each other, and the two sliding plates at the top will jointly drive the scraper to move upward, and then the contact plate continues to rotate, and the reset spring rebounds to drive the two sliding plates of the same pair to move toward each other, and the two sliding plates at the top will jointly drive the scraper to move downward and reset, and the reciprocating movement of the sliding plate and the scraper will grind the edge of the middle groove of the rigid coupling, further making the grinding and polishing of the rigid coupling more comprehensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the grinding mechanism and the polishing mechanism of the present invention.

[0017] Figure 3 It is a partial three-dimensional structural schematic diagram of the grinding mechanism and the polishing mechanism of the present invention.

[0018] Figure 4It is a schematic diagram of the three-dimensional structure of the rotating roller, the grinding sheet, the guide plate and the round rod of the present invention.

[0019] Figure 5 It is a schematic diagram of the three-dimensional structure of the rotating roller and the grinding sheet of the present invention.

[0020] Figure 6 It is a schematic diagram of the three-dimensional structure of the base, the blower and the movable frame of the present invention.

[0021] Figure 7 It is a three-dimensional structural schematic diagram of the polishing mechanism, rotating mechanism, air guide pipe and hair dryer of the present invention.

[0022] Figure 8 It is a three-dimensional structural schematic diagram of the polishing mechanism and the rotating mechanism of the present invention.

[0023] Fig. 9 It is a three-dimensional structural schematic diagram of the rotating mechanism and edge polishing mechanism of the present invention.

[0024] Fig.10 It is a schematic diagram of the three-dimensional structure of the grinding frame, the contact plate and the edge polishing mechanism of the present invention.

[0025] Fig.11 It is a schematic diagram of the three-dimensional structure of the guide plate, the limit block, the scraper frame and the scraper plate of the present invention.

[0026] Fig.12 It is a schematic diagram of the three-dimensional structure of the grinding frame and the scraping frame of the present invention.

[0027] Among them: 1-base, 1001-rigid coupling, 2-guide rail, 3-electric slider, 6-mounting frame, 71-rotating motor, 701-motor coupling, 72-rotating roller, 73-grinding sheet, 74-stabilizing frame, 75-blower, 81-guide plate, 82-limiting block, 83-moving frame, 84-grinding frame, 85-round rod, 91-rack frame, 92-fixed rod, 93-speed increaser, 94-contact plate, 95-gear, 101-guide rod, 102-sliding plate, 103-reset spring, 104-scraper frame, 105-scraper, 106-pushing plate, 111-air duct, 112-blower, 12-cleaning frame. DETAILED DESCRIPTION

[0028] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but is not intended to limit the present invention.

[0029] Embodiment 1: A coupling polishing device, such as Figure 1-Figure 8As shown, it includes a base 1, a rigid coupling 1001, a guide rail 2, an electric slider 3, a mounting frame 6, a grinding mechanism and a polishing mechanism. The rigid coupling 1001 is placed on the top of the base 1. A through groove is opened in the middle of the rigid coupling 1001. A transverse groove, a vertical groove and four circular grooves are opened on one side of the rigid coupling 1001. The top of the base 1 is connected with a guide rail 2 by bolts. The guide rail 2 is vertically arranged. The guide rail 2 is slidably connected with the electric slider 3. The mounting frame 6 is fixed to the electric slider 3. The electric slider 3 is used to drive the mounting frame 6 to move. The mounting frame 6 is provided with a grinding mechanism, which is used to polish the inner wall of the through groove of the rigid coupling 1001. The guide rail 2 is provided with a polishing mechanism, which is used to polish the inner wall of the transverse groove and the vertical groove of the rigid coupling 1001.

[0030] An arc-shaped protrusion is provided on the top of the base 1 , and the lower part of the rigid coupling 1001 contacts the arc-shaped protrusion on the top of the base 1 , and the arc-shaped protrusion is used to limit the rigid coupling 1001 .

[0031] The grinding mechanism includes a rotating motor 71, a motor coupling 701, a rotating roller 72, a grinding sheet 73, a stabilizing frame 74 and a blower 75. The rotating motor 71 is fixedly connected to the mounting frame 6. The motor coupling 701 is fixedly connected to the output shaft of the rotating motor 71. The bottom end of the motor coupling 701 is fixedly connected to the rotating roller 72. The rotating roller 72 is vertically arranged and has a hollow structure inside. The rotating roller 72 is provided with a curved surface and a flat surface. The rotating roller 72 is located at the rigid coupling 1001. Just above the middle through slot, a grinding sheet 73 is fixed to the curved surface of the rotating roller 72, and the grinding sheet 73 is used to polish the inner wall of the through slot of the rigid coupling 1001. A stabilizing frame 74 is fixed to the side of the mounting frame 6 away from the electric slider 3, and the stabilizing frame 74 is located above the rigid coupling 1001. The stabilizing frame 74 is used to limit the rigid coupling 1001. A blower 75 is fixed to the base 1, and the blower 75 is located just below the through slot in the middle of the rigid coupling 1001.

[0032] The polishing mechanism includes a guide plate 81, a limit block 82, a moving frame 83, a grinding frame 84 and a round rod 85. The upper part of the rotating roller 72 is fixedly connected to the guide plate 81, and a guide groove is opened on the guide plate 81. The side of the guide rail 2 close to the rigid coupling 1001 is fixedly connected to two limit blocks 82. The two limit blocks 82 are symmetrically arranged. The side of the two limit blocks 82 close to the rigid coupling 1001 is opened with an arc opening. The arc openings of the two limit blocks 82 are A movable frame 83 is placed in the middle, the bottom of the movable frame 83 passes through the base 1, and a grinding frame 84 is fixedly connected to the movable frame 83. The grinding frame 84 is located in the transverse groove and the vertical groove of the rigid coupling 1001 at the same time. The grinding frame 84 is used to polish the inner walls of the transverse groove and the vertical groove of the rigid coupling 1001. A round rod 85 is slidably connected to the top of the grinding frame 84. The upper part of the round rod 85 is located in the guide groove of the guide plate 81, and the guide plate 81 is used to extrude the round rod 85.

[0033] First, the worker places the rigid coupling 1001 on the top of the base 1. The arc-shaped protrusion on the top of the base 1 preliminarily positions the rigid coupling 1001. Then the worker starts the electric slider 3, the rotating motor 71 and the blower 75. The electric slider 3 drives the mounting frame 6, the rotating motor 71, the motor coupling 701, the rotating roller 72, the grinding sheet 73 and the stabilizing frame 74 to move downward. The downward movement of the stabilizing frame 74 will limit the top of the rigid coupling 1001, so that the rigid coupling 1001 remains stable, which is convenient for stably stabilizing the rigid coupling 1 001 is polished, the rotating roller 72 and the polishing sheet 73 will extend into the through slot in the middle of the rigid coupling 1001, the rotating motor 71 drives the motor coupling 701 to rotate through the output shaft, the motor coupling 701 drives the rotating roller 72 and the polishing sheet 73 to rotate, the polishing sheet 73 polishes the inner wall of the through slot in the middle of the rigid coupling 1001, during the polishing process, the wind blown by the blower 75 can blow away the polishing debris in the through slot in the middle of the rigid coupling 1001, reduce the scratches on the through slot on the inner wall of the rigid coupling 1001, and achieve a better polishing effect; ... The guide plate 81 and the round rod 85 move downwardly, and the round rod 85 extends from the bottom of the base 1. The rotating roller 72 rotates and drives the guide plate 81 to rotate. When the rotating roller 72 drives the grinding sheet 73 to rotate until it contacts the inner wall of the middle through groove of the rigid coupling 1001 close to the guide rail 2, the guide plate 81 squeezes the round rod 85 through the guide groove to move in the direction close to the guide rail 2. The round rod 85 drives the moving frame 83 and the grinding frame 84 to move in the direction close to the guide rail 2, so that the grinding frame 84 will not contact the grinding sheet 73, and the grinding sheet 73 will contact the guide rail 2. The inner wall of the middle through groove of the rigid coupling 1001 is polished on one side close to the guide rail 2, so that the polishing sheet 73 fully polishes the inner wall of the middle through groove of the rigid coupling 1001, and then the polishing sheet 73 continues to rotate, and the guide plate 81 continues to rotate to drive the round rod 85, the movable frame 83 and the polishing frame 84 to reset, and so on and so forth, so that while the polishing sheet 73 polishes the inner wall of the middle through groove of the rigid coupling 1001, the polishing frame 84 polishes the transverse groove and the vertical groove of the rigid coupling 1001, so that the rigid coupling 1001 is polished more comprehensively.

[0034] Embodiment 2: Based on embodiment 1, Figure 7-Figure 9As shown, it also includes a rotating mechanism, which is used to polish the circular groove on the rigid coupling 1001. The rotating mechanism is arranged on the mobile frame 83, and the rotating mechanism is connected to the base 1. The rotating mechanism includes a rack frame 91, a fixed rod 92, a speed increaser 93, a contact plate 94 and a gear 95. Four rack frames 91 are connected to the mobile frame 83 by bolts, and two fixed rods 92 are welded on the top of the base 1. The two fixed rods 92 are symmetrically arranged. Two speed increasers 93 are fixedly connected to each fixed rod 92. A contact plate 94 is provided on the output shaft of each speed increaser 93. The contact plate 94 is located in the circular groove on the rigid coupling 1001. A gear 95 is provided on the input shaft of each speed increaser 93. The rack frame 91 is meshed with the gear 95, and the speed increaser 93 is used to increase the rotation speed of the contact plate 94.

[0035] First, when the worker places the rigid coupling 1001 on the top of the base 1, the four circular grooves on the rigid coupling 1001 will contact the four contact plates 94 respectively, and when the guide plate 81 squeezes the round rod 85 and the movable frame 83 toward the direction close to the guide rail 2 through the guide groove, the movable frame 83 drives the rack frame 91 to move, and the rack frame 91 squeezes the gear 95 to rotate, and the gear 95 rotates through the speed increaser 93 to drive the contact plate 94 to rotate rapidly. When the guide plate 81 squeezes the round rod 85 and the movable frame 83 toward the direction away from the guide rail 2 through the guide groove, the movable frame 83 drives the rack frame 91 to move in the opposite direction and reset, and the rack frame 91 squeezes the gear 95 to rotate in the opposite direction and reset, and the gear 95 rotates through the speed increaser 93 to drive the contact plate 94 to rotate in the opposite direction and reset rapidly. When the contact plate 94 rotates, the circular grooves on the rigid coupling 1001 will be fully polished, thereby further making the polishing of the rigid coupling 1001 more comprehensive.

[0036] Embodiment 3: Based on embodiment 2, Figure 9-12 As shown, it also includes an edge polishing mechanism, which is used to polish the edges of the transverse groove and the vertical groove of the rigid coupling 1001. The edge polishing mechanism is arranged in the rotating roller 72, and the edge polishing mechanism includes a guide rod 101, a sliding plate 102, a return spring 103, a scraper 104, a scraper 105 and a push plate 106. Two guide rods 101 are fixedly connected to the top of the base 1, and two pairs of sliding plates 102 are slidably connected to each guide rod 101. The two sliding plates in each pair of sliding plates 102 102 are in contact with each other, and a return spring 103 is connected between the four sliding plates 102 and the guide rod 101 through a hook. A scraper 104 is fixed between the two uppermost sliding plates 102. The sliding plates 102 and the scraper 104 are used for polishing the edges of the transverse grooves and vertical grooves of the rigid coupling 1001. A scraper 105 is fixedly connected to the lower side of the guide plate 81. A push plate 106 is fixedly connected to each sliding plate 102, and the push plate 106 is in contact with two push plates 106 located on both sides of the contact plate 94.

[0037] When the contact plate 94 rotates, the contact plate 94 will squeeze the two sliding plates 102 of the same pair to move away from each other, the reset spring 103 is compressed, and the two sliding plates 102 at the top jointly drive the scraper 104 to move upward, and then the contact plate 94 continues to rotate, the reset spring 103 rebounds and drives the two sliding plates 102 of the same pair to move towards each other, and the two sliding plates 102 at the top jointly drive the scraper 104 to move downward and reset, and the reciprocating movement of the sliding plate 102 and the scraper 104 will grind the edges of the transverse grooves and vertical grooves of the rigid coupling 1001, further making the grinding and polishing of the rigid coupling 1001 more comprehensive.

[0038] Embodiment 4: Based on the embodiment 3, Figure 7 As shown, it also includes an air duct 111 and a hair dryer 112. Two air ducts 111 are fixedly connected to the top of the base 1. The two air ducts 111 are symmetrically arranged. The two air ducts 111 are provided with vertical air outlets on one side close to each other. A hair dryer 112 is provided on the top of each air duct 111. The air duct 111 is used to guide the airflow discharged by the hair dryer 112 to the surface of the rigid coupling 1001.

[0039] First, the worker places the rigid coupling 1001 on the top of the base 1, and then starts the hair dryer 112. The hair dryer 112 draws air into the air duct 111, and the air is blown out through the air duct 111. When the rigid coupling 1001 is polished, the air blown out of the air duct 111 can blow away the polishing debris on the surface of the rigid coupling 1001.

[0040] Embodiment 5: Based on Embodiment 4, Figure 1 As shown, a cleaning rack 12 is also included. The cleaning rack 12 is provided at the lower part of the guide rail 2. The grinding sheet 73 passes through the cleaning rack 12. The cleaning rack 12 is used to brush the surface of the grinding sheet 73.

[0041] When the grinding sheet 73 moves upward or downward, the cleaning frame 12 can brush the surface of the grinding sheet 73 to reduce the adhesion of debris and powder on the surface of the grinding sheet 73.

[0042] Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation shall fall within the protection scope of the present invention.

Claims

1. A coupling polishing device, characterized in that: The invention comprises a base (1), a rigid coupling (1001), a guide rail (2), an electric slider (3), a mounting frame (6), a grinding mechanism and a polishing mechanism, wherein the rigid coupling (1001) is placed on the top of the base (1), a through groove is formed in the middle of the rigid coupling (1001), a transverse groove, a vertical groove and four circular grooves are formed on one side of the rigid coupling (1001), a guide rail (2) is fixedly connected to the top of the base (1), the guide rail (2) is arranged vertically, an electric slider (3) is slidably connected to the guide rail (2), the mounting frame (6) is fixedly connected to the electric slider (3), a grinding mechanism is provided on the mounting frame (6), the grinding mechanism is used to polish the inner wall of the through groove of the rigid coupling (1001), and a polishing mechanism is provided on the guide rail (2), the polishing mechanism is used to polish the inner wall of the transverse groove and the vertical groove of the rigid coupling (1001); The top of the base (1) is provided with an arc-shaped protrusion, and the lower part of the rigid coupling (1001) contacts the arc-shaped protrusion on the top of the base (1); the grinding mechanism comprises a rotating motor (71), a motor coupling (701), a rotating roller (72), a grinding sheet (73), a stabilizing frame (74) and a blower (75); the mounting frame (6) is fixedly connected to the rotating motor (71), the motor coupling (701) is fixedly connected to the output shaft of the rotating motor (71), the bottom end of the motor coupling (701) is fixedly connected to the rotating roller (72), the rotating roller (72) is vertically arranged and has a hollow structure inside, and the rotating roller (72) is A curved surface and a flat surface are provided, the rotating roller (72) is located directly above the through slot in the middle of the rigid coupling (1001), the grinding sheet (73) is fixedly connected to the curved surface of the rotating roller (72), the stabilizing frame (74) is fixedly connected to a side of the mounting frame (6) away from the electric slider (3), the stabilizing frame (74) is located above the rigid coupling (1001), a blower (75) is fixedly connected to the base (1), and the blower (75) is located directly below the through slot in the middle of the rigid coupling (1001); The polishing mechanism comprises a guide plate (81), a limit block (82), a movable frame (83), a grinding frame (84) and a round rod (85). The upper part of the rotating roller (72) is fixedly connected to the guide plate (81), and a guide groove is formed on the guide plate (81). Two limit blocks (82) are fixedly connected to one side of the guide rail (2) close to the rigid coupling (1001). The two limit blocks (82) are symmetrically arranged. The two limit blocks (82) have arc-shaped openings on one side close to the rigid coupling (1001). The two limit blocks (82) are A movable frame (83) is placed between the arc-shaped openings of the guide plate (81), the bottom of the movable frame (83) passes through the base (1), a grinding frame (84) is fixedly connected to the movable frame (83), the grinding frame (84) is simultaneously located in the transverse groove and the vertical groove of the rigid coupling (1001), a round rod (85) is slidably connected to the top of the grinding frame (84), the upper part of the round rod (85) is located in the guide groove of the guide plate (81), and the guide plate (81) squeezes the round rod (85) through the guide groove to move in a direction close to or away from the guide rail (2).

2. A coupling polishing device as claimed in claim 1, characterized in that: The invention also comprises a rotating mechanism, which is used for polishing the circular groove on the rigid coupling (1001). The rotating mechanism is arranged on the moving frame (83), connected to the base (1), and comprises a rack frame (91), a fixed rod (92), a speed increaser (93), a contact plate (94) and a gear (95). Four rack frames (91) are fixedly connected to the moving frame (83), two fixed rods (92) are fixedly connected to the top of the base (1), the two fixed rods (92) are symmetrically arranged, and two speed increasers (93) are fixedly connected to each fixed rod (92). The output shaft of each speed increaser (93) is provided with a contact plate (94), and the contact plate (94) is located in the circular groove on the rigid coupling (1001). The input shaft of each speed increaser (93) is provided with a gear (95), and the rack frame (91) is meshed with the gear (95).

3. A coupling polishing device as claimed in claim 2, characterized in that: The device also includes an edge polishing mechanism, which is used to polish the edges of the transverse groove and the vertical groove of the rigid coupling (1001). The edge polishing mechanism is arranged in the rotating roller (72), and includes a guide rod (101), a sliding plate (102), a return spring (103), a scraper frame (104), a scraper plate (105) and a push plate (106). Two guide rods (101) are fixedly connected to the top of the base (1), and two pairs of sliding plates (102) are slidably connected to each guide rod (101). The two sliding plates (102) in each pair of sliding plates (102) are in contact with each other, a return spring (103) is connected between the four sliding plates (102) and the guide rod (101), a scraper frame (104) is fixedly connected between the two sliding plates (102) at the top, a scraper plate (105) is fixedly connected to the lower side of the guide plate (81), and a push plate (106) is fixedly connected to each sliding plate (102), and the push plate (106) is in contact with two push plates (106) located on both sides of the contact plate (94).

4. A coupling polishing device as claimed in claim 3, characterized in that: It also includes an air guide duct (111) and a hair dryer (112). The top of the base (1) is fixedly connected to the two air guide ducts (111). The two air guide ducts (111) are symmetrically arranged. The two air guide ducts (111) are provided with vertical air outlets on one side close to each other. The upper part of each air guide duct (111) is provided with a hair dryer (112).

5. A coupling polishing device as claimed in claim 4, characterized in that: It also includes a cleaning frame (12), the lower part of the guide rail (2) is provided with the cleaning frame (12), and the grinding sheet (73) passes through the cleaning frame (12).

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