Polishing device for sports equipment production

Abstract

The invention provides a polishing device for sports equipment production, and relates to the technical field of polishing devices.The polishing device comprises a base, a fixing mechanism for fixing sports equipment pipes is arranged on the base, a polishing mechanism for polishing the sports equipment pipes is arranged on the base, and the fixing mechanism comprises a disc, a motor and a rotating shaft; the polishing mechanism comprises an outer ring, an inner ring, an inner gear ring and a rack, two vertical frames are fixedly installed at the upper end of the base, a reciprocating lead screw is fixedly installed at the side end of the disc, and the motors are fixedly installed at the side ends of the vertical frames. According to the device, a guide table is arranged to be matched with each arc-shaped rod, when the sports pipe is polished, the guide table expands each arc-shaped rod to abut against the inner side wall of the sports pipe to achieve fixation, and radial supporting force is formed in the sports pipe; and the situation that the sports pipe is possibly deformed due to grinding radial force generated by grinding can be avoided, and the machining quality of the sports pipe is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of polishing devices, and more specifically, particularly relates to a polishing device used in the production of sports equipment. Background Art

[0002] Sports equipment refers to the general term for various instruments, equipment and supplies used in sports teaching, training, competition and national fitness activities. Many supporting frames and connecting structures in sports equipment require the use of pipes. Polishing can remove burrs, oxide scales and other impurities on the surface of the pipes, making the surface of the pipes smoother and flatter, which is convenient for subsequent processing of the pipes. In the prior art, centerless grinding is generally used to polish and grind the pipes.

[0003] The Chinese patent publication number is: CN118578216A, an external cylindrical centerless grinding machine tool, which can perform concentric precision machining on some slender shaft sleeve parts, and at the same time ensure the concentricity requirement of the reference center axis of the machined pipe and the machined external circle.

[0004] The equipment for polishing sports pipes in the prior art has the following disadvantages: 1. When centerless grinding is used to grind hollow pipes, it relies on the line contact support between the workpiece and the support plate. The hollow pipe lacks support force inside, resulting in the radial force of grinding, which may cause the sports pipe to be squeezed and deformed, resulting in the scrapping of the pipe, affecting the quality and yield rate of pipe processing.

[0005] 2. When centerless grinding is used to process pipes of different diameters, it is necessary to accurately adjust the guide wheel inclination angle to produce axial feed. The adjustment is time-consuming and relies on the technician's experience. It cannot quickly adapt to the processing of sports equipment of different diameters. In addition, the sports equipment grinding wheel wears quickly and the dressing interval is short, resulting in low adjustment efficiency.

[0006] In view of this, the existing structure and defects are studied and improved, and a polishing device for sports equipment production is provided, in order to achieve the purpose of having more practical value. Summary of the invention

[0007] In order to solve the above technical problems, the present invention provides a polishing device for sports equipment production to solve the above problems.

[0008] A polishing device for producing sports equipment comprises a base, a fixing mechanism for fixing sports pipes is arranged on the base, a polishing mechanism for polishing sports pipes of sports equipment is arranged on the base, the fixing mechanism comprises a disc, a motor and a rotating shaft, the polishing mechanism comprises an outer ring, an inner ring, an inner gear ring and a rack, two vertical frames are fixedly installed on the upper end of the base, a reciprocating screw is fixedly installed on the side end of the disc, the motor is fixedly installed on the side end of the vertical frame, and at least two arc-shaped rods are arranged on the circumferential end of the rotating shaft. A first spring is fixedly installed between each of the arc-shaped rods and the rotating shaft, the inner ring is located on the inner side wall of the outer ring, at least two C-shaped rods are fixedly installed between the inner ring and the outer ring, an annular groove is provided on the inner side wall of the outer ring, the inner gear ring is rotatably installed on the inner side wall of the annular groove, the number of the racks is at least two, a push rod is fixedly installed on the side end of each of the racks, a polishing belt is fixedly installed on the side end of each of the push rods, a first wire groove is penetrated through the side end of the stand located on one side, and the reciprocating screw is threadedly rotatably installed on the first The inner side wall of a wire groove, two fixing rods are fixedly installed on the side end of the disc, a connecting plate is fixedly installed on the output end of the motor, two telescopic rods are fixedly installed on the side end of the connecting plate, and magnetic blocks are fixedly installed on the side ends of the two telescopic rods, and two mounting grooves are provided on the side end of the rotating shaft, and the two magnetic blocks are adsorbed and installed on the inner side wall of the mounting groove. A guide platform is also slidably installed on the circumferential end of the rotating shaft, and a second wire groove is penetrated and provided on the side end of the guide platform, and a threaded rod is rotatably installed on the side end of the rotating shaft, and the threaded rod is threadedly rotatably installed on the inner side wall of the second wire groove, and the end of the fixing rod is fixedly installed on the side end of the guide platform, and a plurality of first guide grooves are provided on the side end array of the outer ring, and two fixing frames are fixedly installed between the outer ring and the base, and a movable groove is penetrated and provided on the side end of the outer ring, and a plurality of limiting grooves are also penetrated and provided on the side end array of the inner ring, and a plurality of second guide grooves are provided, and a circular shaft is rotatably installed on the side end of each of the C-shaped rods, and a gear is fixedly installed on the circumferential end of each of the circular shafts.

[0009] Preferably, each of the gears is meshed with an inner gear ring, an L-shaped clamping rod is fixedly mounted on the side end of the inner gear ring, the L-shaped clamping rod is slidably mounted on the inner side wall of the movable groove, and a slot is penetrated through the side end of the L-shaped clamping rod.

[0010] Preferably, a limit rod is slidably installed through the inner side wall of the slot, the end of the limit rod is located on the inner side wall of one of the limit slots, a pull plate is fixedly installed on the side end of the limit rod, and two second springs are fixedly installed between the pull plate and the L-shaped clamping rod.

[0011] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, by providing a first spring, an arc rod and a guide platform in coordination, when fixing the sports tubing, pre-fixation and stable fixation can be coordinated. The arc rod is pushed against the inner wall of the sports tubing by the first spring to achieve preliminary fixation and determine the position of the sports tubing. During subsequent adjustment, the sports tubing can be directly pushed to a suitable position, and then the guide platform is driven to move by rotating the threaded rod, and each arc rod is stretched to achieve stable fixation, making the adjustment of the position of the sports tubing more flexible and convenient.

[0012] In the present invention, by providing a guide platform and cooperating with each arc rod, when the sports pipe is polished, the guide platform can open each arc rod and press it against the inner wall of the sports pipe to fix it, thereby forming a radial supporting force inside the sports pipe. During polishing, the situation in which the grinding radial force generated by polishing may cause deformation of the sports pipe can be avoided, thereby ensuring the quality of the sports pipe during processing.

[0013] In the present invention, by providing an adjustable polishing belt, when processing sports pipes of different diameters, the position of each polishing belt can be adjusted at the same time, so that it can be moved to a suitable position according to the diameter of the sports pipe, adapted to the processing of sports pipes of different diameters, improve the flexibility of the device during processing, and ensure the fineness and efficiency of grinding.

[0014] In the present invention, an L-shaped clamping rod, a limiting rod and a pull plate are matched with each other, and the limiting rod is inserted into the inner wall of the limiting groove to limit the inner gear ring, thereby ensuring the stability of each rack, push rod and polishing belt during processing. The limiting effect is good and can prevent the displacement of the rack position due to vibration or force during the processing, thereby ensuring the quality of the sports pipe processing.

[0015] In the present invention, a reciprocating screw and a disc are provided to cooperate with each other. When the motor is started to drive the sports pipe on the rotating shaft to rotate and grind, the reciprocating screw can rotate in the first wire groove to drive the sports pipe outside the rotating shaft to move back and forth, thereby realizing the grinding of the entire sports pipe. There is no need for manual intervention to adjust the position of the sports pipe, making the grinding more efficient and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the base of the present invention; Figure 2 It is a schematic diagram of the structure explosion of the base of the present invention; Figure 3 It is a structural schematic diagram of the motor of the present invention; Figure 4 It is a structural schematic diagram of the rotating shaft of the present invention; Figure 5 It is a schematic diagram of the structure of the outer ring of the present invention; Figure 6 It is a schematic diagram of the structure of the inner ring of the present invention; Figure 7 It is a schematic structural diagram of the inner gear ring of the present invention; Figure 8 It is a schematic diagram of the explosion structure of the inner ring of the present invention; Fig. 9 The present invention Figure 7 A schematic diagram of the enlarged structure.

[0017] In the figure, the corresponding relationship between the component names and the figure numbers is: 1. base; 11. stand; 12. first wire groove; 2. disc; 21. reciprocating screw; 22. fixed rod; 3. motor; 31. connecting plate; 32. telescopic rod; 33. magnet; 4. rotating shaft; 41. mounting groove; 42. first spring; 43. arc rod; 45. threaded rod; 46. guide platform; 47. second wire groove; 5. outer ring; 51. first guide groove; 52. annular groove; 53. movable groove; 54. limiting groove; 55. fixed frame; 6. inner ring; 61. second guide groove; 62. C-shaped rod; 63. round shaft; 64. gear; 7. inner gear ring; 71. L-shaped clamping rod; 72. slot; 73. pull plate; 74. second spring; 75. limiting rod; 8. rack; 81. push rod; 82. polishing belt. DETAILED DESCRIPTION

[0018] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0019] See also Figure 1-Figure 9 The present invention provides a polishing device for sports equipment production, including a base 1, a fixing mechanism for fixing sports pipes is provided on the base 1, a polishing mechanism for polishing sports pipes of sports equipment is provided on the base 1, the fixing mechanism includes a disc 2, a motor 3 and a rotating shaft 4, and the polishing mechanism includes an outer ring 5, an inner ring 6, an inner gear ring 7 and a rack 8. In the production of sports equipment, a large number of pipes will be used. When the pipes are painted, the pipes need to be polished and smooth before painting to facilitate subsequent processing. When polishing the sports pipes, the pipes can be sleeved and fixed on the circumferential end of each arc rod 43. After the pipes are fixed, the positional relationship between each polishing belt 82 and the sports pipe is adjusted. After the adjustment is completed, the motor 3 can be started to drive the sports pipe to rotate, so that each polishing belt 82 polishes the sports pipe; Two vertical frames 11 are fixedly installed on the upper end of the base 1, a reciprocating screw 21 is fixedly installed on the side end of the disc 2, the motor 3 is fixedly installed on the side end of the vertical frame 11, at least two arc rods 43 are provided at the circumferential end of the rotating shaft 4, a first spring 42 is fixedly installed between each arc rod 43 and the rotating shaft 4, the inner ring 6 is located on the inner side wall of the outer ring 5, at least two C-shaped rods 62 are fixedly installed between the inner ring 6 and the outer ring 5, the inner side wall of the outer ring 5 is provided with an annular groove 52, and the inner gear ring 7 rotates The rack 8 is installed on the inner side wall of the annular groove 52, the number of the racks 8 is at least two, the side end of each rack 8 is fixedly installed with a push rod 81, the side end of each push rod 81 is fixedly installed with a polishing belt 82, the side end of the stand 11 on one side is penetrated with a first thread groove 12, the reciprocating screw 21 is threadedly installed on the inner side wall of the first thread groove 12, the side end of the disc 2 is fixedly installed with two fixing rods 22, the output end of the motor 3 is fixedly installed with a connecting plate 31, and the side of the connecting plate 31 is fixedly installed with a connecting plate 31. Two telescopic rods 32 are fixedly installed at the end, and the side ends of the two telescopic rods 32 are fixedly installed with magnetic blocks 33. After completing the position adjustment of the polishing belt 82, the user can insert the magnetic block 33 into the installation slot 41 again. At this time, the telescopic rod 32 is stretched, and the user can start the motor 3. The motor 3 starts to drive the connecting plate 31 to rotate. The rotation of the connecting plate 31 drives the rotating shaft 4 to rotate through the telescopic rod 32. The rotation of the rotating shaft 4 drives the sports pipe fixed on the circumferential end of the arc rod 43 to rotate. The rotation of the sports pipe can realize the polishing of the sports pipe by the polishing belt 82. When the rotating shaft 4 rotates, it will drive the guide platform 46 on one side to rotate at the same time. The rotation of the guide platform 46 will drive the disc 2 to rotate through the fixed rod 22. The rotation of the disc 2 will drive the reciprocating screw 21 to rotate in the first wire groove 12. The reciprocating screw 21 will move. The movement of the reciprocating screw 21 will drive the rotating shaft 4 to move back and forth through the guide platform 46. The reciprocating movement of the rotating shaft 4 will drive the sports pipe to move back and forth, so as to realize the reciprocating polishing of the surface of the sports pipe. Two mounting grooves 41 are provided at the side end of the rotating shaft 4, and two magnetic blocks 33 are adsorbed and installed on the inner side walls of the mounting grooves 41. A guide platform 46 is also slidably installed at the circumferential end of the rotating shaft 4, and a second thread groove 47 is penetrated through the side end of the guide platform 46. A threaded rod 45 is rotatably installed at the side end of the rotating shaft 4, and the threaded rod 45 is threadedly rotatably installed on the inner side wall of the second thread groove 47. Before grinding the sports pipe, the sports pipe can be fixed first, and the user can pull the two magnetic blocks 33 out of the inner side wall of the mounting groove 41. At this time, the magnetic blocks 33 and the inner side wall of the mounting groove 41 are no longer adsorbed, and the user can sleeve the sports pipe from one side of the mounting groove 41 on the inner side of each arc rod 43 At the circumferential end, each first spring 42 will push each arc rod 43 against the inner side of the sports pipe to achieve preliminary fixation of the sports pipe. When the sports pipe needs to be adjusted, the sports pipe can be directly slid to adjust it to a suitable position. After completing the preliminary adjustment, the user can rotate the reciprocating screw 21, and the reciprocating screw 21 rotates through the second wire groove 47 to drive the guide table 46 to slide on the side of the mounting groove 41 on the rotating shaft 4. The guide table 46 is a frustum, and the movement of the guide table 46 will gradually open each arc rod 43, so that it further presses against the inner wall of the sports pipe, and fixes the sports pipe firmly, thereby achieving the fixation of the sports pipe before grinding; The end of the fixed rod 22 is fixedly mounted on the side end of the guide platform 46, a plurality of first guide grooves 51 are arranged in an array on the side end of the outer ring 5, two fixed frames 55 are fixedly mounted between the outer ring 5 and the base 1, a movable groove 53 is penetrated through the side end of the outer ring 5, a plurality of limit grooves 54 are also penetrated through the side end of the outer ring 5, a plurality of second guide grooves 61 are arranged in an array on the side end of the inner ring 6, a circular shaft 63 is rotatably mounted on the side end of each C-shaped rod 62, a gear 64 is fixedly mounted on the circumferential end of each circular shaft 63, and each gear 64 is aligned with the inner gear ring 7 are meshed with each other, an L-shaped clamping rod 71 is fixedly installed on the side end of the inner gear ring 7, and the L-shaped clamping rod 71 is slidably installed on the inner side wall of the movable groove 53. A slot 72 is penetrated through the side end of the L-shaped clamping rod 71, and a limit rod 75 is slidably installed through the inner side wall of the slot 72. The end of the limit rod 75 is located on the inner side wall of one of the limit grooves 54. A pull plate 73 is fixedly installed on the side end of the limit rod 75. Two second springs 74 are fixedly installed between the pull plate 73 and the L-shaped clamping rod 71. After completing the fixation of the sports pipe, the user can adjust each polishing belt 82 and The positional relationship between the sports pipes is that the user can adjust the position of each polishing belt 82 according to the diameter of the sports pipe. The user can pull the pull plate 73, and the movement of the pull plate 73 drives the limit rod 75 to slide away from the inner side wall of one of the limit grooves 54. At this time, the second spring 74 is stretched, and the user can pull the L-shaped clamping rod 71 to rotate in the movable groove 53. The rotation of the L-shaped clamping rod 71 will drive the inner gear ring 7 to rotate in the annular groove 52. The rotation of the inner gear ring 7 will drive each gear 64 to rotate. The rotation of each gear 64 will drive each rack 8 between the first guide groove 51 and the second guide groove 54. The inner wall of the second guide groove 61 slides toward the sports pipe, and the movement of each rack 8 drives the polishing belt 82 to move through the push rod 81. After adjusting each polishing belt 82 to be attached to the outer wall of the sports pipe, the user can stop rotating the L-shaped clamping rod 71. At this time, the user can release the pull plate 73, and the second spring 74 will rebound to drive the pull plate 73 to move. The movement of the pull plate 73 will drive the limiting rod 75 to be inserted into the inner wall of one of the limiting grooves 54 again, completing the limiting of each polishing belt 82, so that the position of each polishing belt 82 is adapted to the pipe thickness of the sports pipe.

[0020] Working principle: In the first step, a large number of pipes will be used in the production of sports equipment. Before painting the pipes, the pipes need to be polished and smoothed to facilitate subsequent processing. When polishing the sports pipes, the pipes can be sleeved and fixed on the circumferential end of each arc rod 43. After the pipes are fixed, the positional relationship between each polishing belt 82 and the sports pipe is adjusted. After the adjustment is completed, the motor 3 can be started to drive the sports pipe to rotate, so that each polishing belt 82 polishes the sports pipe; In the second step, before grinding the sports pipe, the sports pipe can be fixed first. The user can pull the two magnetic blocks 33 out of the inner wall of the installation groove 41. At this time, the magnetic block 33 and the inner wall of the installation groove 41 are no longer adsorbed. The user can sleeve the sports pipe from one side of the installation groove 41 on the circumferential end of each arc rod 43. Each first spring 42 will push each arc rod 43 against the inner side of the sports pipe to achieve preliminary fixation of the sports pipe. If the sports pipe needs to be adjusted, the sports pipe can be directly slid to adjust it to a suitable position. After completing the preliminary adjustment, the user can rotate the reciprocating screw 21. The reciprocating screw 21 rotates through the second wire groove 47 to drive the guide platform 46 to slide on the side of the installation groove 41 on the rotating shaft 4. The guide platform 46 is a truncated cone. The movement of the guide platform 46 will gradually open each arc rod 43, so that it further presses against the inner wall of the sports pipe, and the sports pipe is fixed and stabilized, thereby achieving the fixation of the sports pipe before grinding; The device cooperates with the first spring 42, the arc rod 43 and the guide platform 46 to achieve pre-fixation and stable fixation when fixing the sports pipe. The arc rod 43 is pushed against the inner wall of the sports pipe by the first spring 42 to achieve preliminary fixation and determine the position of the sports pipe. When adjusting later, the sports pipe can be directly pushed to a suitable position, and then the guide platform 46 is driven to move by rotating the threaded rod 45 to open each arc rod 43 to achieve stable fixation, making the adjustment of the position of the sports pipe more flexible and convenient. The device is provided with a guide platform 46 and each arc rod 43 to cooperate with each other. When grinding the sports pipe, the guide platform 46 opens each arc rod 43 and presses against the inner wall of the sports pipe to fix it, forming a radial support force inside the sports pipe. When grinding, it can avoid the situation that the grinding radial force generated by grinding may cause the sports pipe to deform, thereby ensuring the quality of the sports pipe during processing; In the third step, after the sports tubing is fixed, the user can adjust the positional relationship between each polishing belt 82 and the sports tubing. The user can adjust the position of each polishing belt 82 according to the diameter of the sports tubing. The user can pull the pull plate 73, and the movement of the pull plate 73 drives the limit rod 75 to slide away from the inner side wall of one of the limit grooves 54. At this time, the second spring 74 is stretched, and the user can pull the L-shaped clamping rod 71 to rotate in the movable groove 53. The rotation of the L-shaped clamping rod 71 will drive the inner gear ring 7 to rotate in the annular groove 52. The rotation of the inner gear ring 7 will drive each gear 64 to rotate, and the rotation of each gear 64 will drive Each rack 8 is moved to slide on the inner side wall of the first guide groove 51 and the second guide groove 61 toward the sports pipe. The movement of each rack 8 drives the polishing belt 82 to move through the push rod 81. After adjusting each polishing belt 82 to be attached to the outer side wall of the sports pipe, the user can stop rotating the L-shaped clamping rod 71. At this time, the user can release the pull plate 73. The second spring 74 will rebound and drive the pull plate 73 to move. The movement of the pull plate 73 will drive the limiting rod 75 to be inserted into the inner side wall of one of the limiting grooves 54 again, completing the limiting of each polishing belt 82, so that the position of each polishing belt 82 is adapted to the pipe thickness of the sports pipe; The device is provided with an adjustable polishing belt 82. When processing sports pipes of different diameters, the position of each polishing belt 82 can be adjusted at the same time, so that it can be moved to a suitable position according to the diameter of the sports pipe, adapted to the processing of sports pipes of different diameters, improve the flexibility of the device during processing, and ensure the fineness and efficiency of grinding; The device is provided with an L-shaped clamping rod 71, a limiting rod 75 and a pull plate 73, and the limiting rod 75 is inserted into the inner side wall of the limiting groove 54 to limit the inner gear ring 7, thereby ensuring the stability of each rack 8, push rod 81 and polishing belt 82 during processing. The limiting effect is good, and the displacement of the rack 8 due to vibration or force during processing can be prevented, thereby ensuring the quality of sports pipe processing; The fourth step, after completing the position adjustment of the polishing belt 82, the user can insert the magnetic block 33 into the installation groove 41 again. At this time, the telescopic rod 32 is stretched, and the user can start the motor 3. The motor 3 starts to drive the connecting plate 31 to rotate. The rotation of the connecting plate 31 drives the rotating shaft 4 to rotate through the telescopic rod 32. The rotation of the rotating shaft 4 drives the sports pipe fixed at the circumferential end of the arc rod 43 to rotate. The rotation of the sports pipe can realize the polishing of the sports pipe by the polishing belt 82. When the rotating shaft 4 rotates, it will drive the guide platform 46 on one side to rotate at the same time. The rotation of the guide platform 46 will drive the disc 2 to rotate through the fixed rod 22. The rotation of the disc 2 will drive the reciprocating screw 21 to rotate in the first wire groove 12. The reciprocating screw 21 will move. The movement of the reciprocating screw 21 will drive the rotating shaft 4 to move back and forth through the guide platform 46. The reciprocating movement of the rotating shaft 4 will drive the sports pipe to move back and forth, so as to realize the reciprocating polishing of the surface of the sports pipe. This device is equipped with a reciprocating screw 21 and a disc 2. When the motor 3 is started to drive the sports pipe on the rotating shaft 4 to rotate and grind, the reciprocating screw 21 can rotate in the first wire groove 12 to drive the sports pipe outside the rotating shaft 4 to move back and forth, thereby realizing the grinding of the entire sports pipe. There is no need for manual intervention to adjust the position of the sports pipe, making the grinding more efficient and convenient.

[0021] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A polishing device for sports equipment production, comprising a base (1), characterized in that: The base (1) is provided with a fixing mechanism for fixing the sports tubing, and the base (1) is provided with a polishing mechanism for polishing the sports tubing of the sports equipment; The fixing mechanism comprises a disc (2), a motor (3) and a rotating shaft (4); the polishing mechanism comprises an outer ring (5), an inner ring (6), an inner gear ring (7) and a rack (8); two vertical frames (11) are fixedly mounted on the upper end of the base (1); a reciprocating screw (21) is fixedly mounted on the side end of the disc (2); the motor (3) is fixedly mounted on the side end of the vertical frame (11); at least two arc-shaped rods (43) are provided at the circumferential end of the rotating shaft (4); and each arc-shaped rod (43) is connected to the rotating shaft (4). A first spring (42) is fixedly mounted, the inner ring (6) is located on the inner side wall of the outer ring (5), at least two C-shaped rods (62) are fixedly mounted between the inner ring (6) and the outer ring (5), an annular groove (52) is formed on the inner side wall of the outer ring (5), the inner gear ring (7) is rotatably mounted on the inner side wall of the annular groove (52), the number of the racks (8) is at least two, a push rod (81) is fixedly mounted on the side end of each of the racks (8), and a polishing belt (82) is fixedly mounted on the side end of each of the push rods (81).

2. A polishing device for sports equipment production as claimed in claim 1, characterized in that: A first thread groove (12) is formed through a side end portion of the stand (11) on one side, the reciprocating screw (21) is threadably mounted on an inner side wall of the first thread groove (12), and two fixing rods (22) are fixedly mounted on the side end portion of the disc (2).

3. A polishing device for sports equipment production as claimed in claim 2, characterized in that: A connecting plate (31) is fixedly mounted on the output end of the motor (3), two telescopic rods (32) are fixedly mounted on the side ends of the connecting plate (31), and magnetic blocks (33) are fixedly mounted on the side ends of the two telescopic rods (32).

4. A polishing device for sports equipment production as claimed in claim 3, characterized in that: Two mounting grooves (41) are provided at the side ends of the rotating shaft (4), and the two magnetic blocks (33) are adsorbed and mounted on the inner side walls of the mounting grooves (41). A guide platform (46) is also slidably mounted on the circumferential end of the rotating shaft (4).

5. A polishing device for sports equipment production as claimed in claim 4, characterized in that: A second thread groove (47) is formed through the side end of the guide platform (46); a threaded rod (45) is rotatably mounted on the side end of the rotating shaft (4); and the threaded rod (45) is threadably mounted on the inner side wall of the second thread groove (47); Wherein, the end of the fixing rod (22) is fixedly mounted on the side end of the guide platform (46).

6. A polishing device for sports equipment production as claimed in claim 5, characterized in that: A plurality of first guide grooves (51) are arranged in an array at the side end of the outer ring (5), and two fixing frames (55) are fixedly mounted between the outer ring (5) and the base (1).

7. A polishing device for sports equipment production as claimed in claim 6, characterized in that: A movable groove (53) is formed through the side end of the outer ring (5), and a plurality of limit grooves (54) are formed through the side end of the outer ring (5).

8. A polishing device for sports equipment production as claimed in claim 7, characterized in that: A plurality of second guide grooves (61) are arranged in an array at the side end of the inner ring (6), a circular shaft (63) is rotatably mounted on the side end of each C-shaped rod (62), and a gear (64) is fixedly mounted on the circumferential end of each circular shaft (63).

9. A polishing device for sports equipment production as claimed in claim 8, characterized in that: Each of the gears (64) is meshed with an inner gear ring (7); an L-shaped clamping rod (71) is fixedly mounted on a side end of the inner gear ring (7); the L-shaped clamping rod (71) is slidably mounted on an inner side wall of the movable groove (53); and a slot (72) is penetrated through the side end of the L-shaped clamping rod (71).

10. A polishing device for sports equipment production as claimed in claim 9, characterized in that: A limiting rod (75) is slidably mounted through the inner side wall of the slot (72), the end of the limiting rod (75) is located on the inner side wall of one of the limiting grooves (54), and a pull plate (73) is fixedly mounted on the side end of the limiting rod (75); Wherein, two second springs (74) are fixedly installed between the pulling plate (73) and the L-shaped clamping rod (71).

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