Precise polishing device convenient to disassemble

Abstract

The utility model discloses a precise polishing device convenient to disassemble, which belongs to the technical field of polishing processing equipment and comprises a top plate, a left side plate, a right side plate, an expansion sleeve, a polishing wheel, a polishing wheel shaft, a left side fixing shaft and a right side fixing shaft. The polishing wheel is fixed to the polishing wheel shaft through an expansion sleeve, and the two ends of the polishing wheel shaft are fixed to the left fixing shaft and the right fixing shaft through a left pressing piece and a right pressing piece correspondingly. The left side fixing shaft is rotationally mounted on the left side plate, and the right side fixing shaft is rotationally mounted on the right side plate; the left side fixing shaft and the right side fixing shaft are provided with semicircular rings; the left side pressing piece and the right side pressing piece are the same in structure and are both in a semicircular ring shape. The left side pressing piece and the left side fixing shaft are connected through a fastener, and the right side pressing piece and the right side fixing shaft are connected through a fastener. According to the device, the polishing wheel replacement steps are simple, the polishing wheel replacement speed can be greatly reduced, and meanwhile the coaxiality of the polishing wheel and the transmission shaft before and after replacement can be guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of polishing processing equipment, and particularly relates to a precision polishing device which is convenient to disassemble. Background Technique

[0002] Polishing refers to a processing method that uses mechanical, chemical or electrochemical action to reduce the surface roughness of a workpiece to obtain a bright and flat surface for the purpose of getting a smooth surface. In recent years, polishing processes and equipment have developed rapidly and have been widely used in the field of precision machining.

[0003] Usually, a polishing wheel is used as a polishing tool. During the process of polishing a workpiece, considering the wear of the polishing wheel, the polishing wheel needs to be replaced after reaching its service life. In traditional polishing devices, the installation and disassembly of the polishing wheel are inconvenient. After replacing the polishing wheel, in order to ensure the position accuracy, multiple running tests are required, which greatly reduces the polishing efficiency. Therefore, it is necessary to propose a polishing device that is convenient for replacing the polishing wheel and can ensure the coaxiality between the polishing wheel before and after replacement and the transmission shaft. Summary of the Invention

[0004] The purpose of the utility model is to provide a precision polishing device that is convenient for disassembling and assembling the polishing wheel. The steps of replacing the polishing wheel are simple, which can greatly save the replacement speed of the polishing wheel and can ensure the coaxiality between the polishing wheel before and after replacement and the transmission shaft.

[0005] To achieve the above purpose, a precision polishing device that is convenient to disassemble according to the utility model includes a top plate, a left side plate, a right side plate, a power device, a transmission device, a shrink disc, a polishing wheel, a polishing wheel shaft, a left fixing shaft and a right fixing shaft; the top ends of the left side plate and the right side plate are respectively fixed at both ends of the top plate, and the power device drives the left fixing shaft to move through the transmission device; the polishing wheel is fixed on the polishing wheel shaft through the shrink disc, and both ends of the polishing wheel shaft are respectively fixed to the left fixing shaft and the right fixing shaft through a left pressing member and a right pressing member; the first end of the left fixing shaft is rotatably installed on the left side plate, and the second end of the right fixing shaft is rotatably installed on the right side plate; both the second end of the left fixing shaft and the first end of the right fixing shaft have semi-circular rings; the left pressing member and the right pressing member have the same structure and are both semi-circular rings; the left pressing member and the left fixing shaft are connected through fasteners, and the right pressing member and the right fixing shaft are connected through fasteners.

[0006] Further, the transmission device includes a driving pulley, a belt and a driven pulley. The driving pulley is installed on the power output shaft of the power device, the belt is tensioned between the driving pulley and the driven pulley, and the driven pulley is fixedly connected to the left fixing shaft.

[0007] Further, the driving pulley and the power output shaft of the power device are connected through a key.

[0008] Further, the driven pulley is connected to the left fixed shaft by a key.

[0009] Further, the axial position of the left fixed shaft and the driven pulley is fixed by a nut.

[0010] Further, the left fixed shaft is rotatably connected to the left plate through a left bearing, and the right fixed shaft is rotatably connected to the right plate through a right bearing.

[0011] Further, the inner ring of the left bearing is fixed by the shoulder of the left fixed shaft and a left circlip, and the outer ring of the left bearing is fixed to the left plate by a left flange cover; the inner ring of the right bearing is fixed by the shoulder of the right fixed shaft and a right circlip, and the outer ring of the right bearing is fixed to the right plate by a right flange cover.

[0012] Further, the power device is a motor.

[0013] Compared with the prior art, the present utility model has at least the following beneficial technical effects:

[0014] A precision polishing device for facilitating the disassembly of a polishing wheel provided by the present utility model can conveniently disassemble the polishing wheel shaft by adjusting the screws on the left pressing member and the right pressing member. By adjusting the screws on the expansion sleeve, the polishing wheel can be disassembled to realize the replacement of the polishing wheel. The left and right pressing members were originally part of the left and right fixed shafts. After opening holes on the side of the left and right fixed shafts in contact with the polishing wheel shaft, the left and right pressing members are obtained by cutting from one end of the left and right fixed shafts where the polishing wheel shaft is installed. Therefore, the polishing wheel shaft is installed on the fixed shaft through the pressing members, making the axes of the fixed shaft and the polishing wheel shaft coincide, which can ensure the transmission of torque, has a simple structure, is easy to operate, and can ensure the coaxiality between the polishing wheel before and after replacement and the transmission shaft. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the precision polishing device for facilitating disassembly provided by the present utility model;

[0016] Figure 2 is a partial cross-sectional view of the precision polishing device for facilitating disassembly provided by the present utility model;

[0017] Figure 3 is a clamping structure diagram of the polishing wheel shaft of the present utility model;

[0018] Figure 4 is a structural diagram of the pressing member of the present utility model.

[0019] In the accompanying drawings: 1. Top plate; 2. Left side plate; 3. Motor; 4. Driving pulley; 5. Belt; 6. Driven pulley; 7. Nut; 8. Left flange cover; 9. Left pressing member; 10. Expansion sleeve; 11. Polishing wheel; 12. Polishing wheel shaft; 13. Right pressing member; 14. Right side plate; 15. Key; 16. Left fixed shaft; 17. Left circlip; 18. Left bearing; 19. Right fixed shaft; 20. Right bearing; 21. Right circlip; 22. Right flange cover. Detailed implementation manners

[0020] The present utility model will be described in detail below with reference to the accompanying drawings and specific implementation manners.

[0021] In order to enable those skilled in the art to better understand the technical solutions in the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0022] It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or there can also be another intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be another intermediate element at the same time. The terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. used herein indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model in this specification are only for the purpose of describing specific embodiments, and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0024] Please refer to Figures 1 to 3This embodiment provides a precision polishing device that is easy to disassemble a polishing wheel, including a top plate 1, a left side plate 2, a right side plate 14, a motor 3, a driving pulley 4, a belt 5, a driven pulley 6, a nut 7, a left side flange cover 8, a left side pressing member 9, a clamping sleeve 10, a polishing wheel 11, a polishing wheel shaft 12, a right side pressing member 13, a key 15, a left side fixed shaft 16, a left side retaining spring 17, a left side bearing 18, a right side fixed shaft 19, a right side bearing 20, a right side retaining spring 21, and a right side flange cover 22. The top ends of the left side plate 2 and the right side plate 14 are respectively fixed to the two ends of the top plate 1. The transmission shaft is divided into a polishing wheel shaft 10, a left side fixed shaft 16, and a right side fixed shaft 19. The polishing wheel 11 is fixed to the polishing wheel shaft 12 through a clamping sleeve 10. The two ends of the polishing wheel shaft 12 are respectively fixed to the left side fixed shaft 16 and the right side fixed shaft 19 through the left side pressing member 9 and the right side pressing member 13. The structure and shape of the left pressing member 9 and the right pressing member 13 are the same. They are both semicircular rings cut after the left fixed shaft 16 and the right fixed shaft 19 are installed on the side opening of the polishing wheel shaft 12. Figure 4 As shown. To secure the left and right clamping members 9, 13, and polishing wheel shaft 12, the diameters of the holes in the left and right fixed shafts 16 and 19 are ensured to be consistent with those of the polishing wheel shaft 12. Furthermore, holes are drilled at the circumferential connection surfaces between the left and right clamping members 9, 13, and the fixed shafts, and secured with screws. The left and right clamping members and the left and right fixed shafts, respectively, form a unique polishing wheel clamping mechanism.

[0025] The left fixed shaft 16 is installed in the opening corresponding to the left plate 2 through the left bearing 18, and the right fixed shaft 19 is installed in the opening corresponding to the right plate 14 through the right bearing 20. The left fixed shaft shoulder is located on the right side of the left bearing and contacts the left bearing, playing the role of positioning the left bearing. At the same time, the left fixed shaft groove is located on the left side of the left bearing, and a retaining spring is installed. The retaining spring contacts the bearing and can also play the role of positioning the left bearing. The right fixed shaft shoulder is located on the left side of the right bearing and contacts the right bearing, playing the role of positioning the right bearing. At the same time, the right fixed shaft groove is located on the right side of the right bearing, and a retaining spring is installed. The retaining spring contacts the bearing and can also play the role of positioning the right bearing.

[0026] The inner ring of the left bearing 18 is fixed by the shoulder of the left fixed shaft 16 and the left circlip 17. The outer ring of the left bearing 18 is installed in the corresponding opening on the left side plate 2 through the left flange cover 8. The inner ring of the right bearing 20 is fixed by the shoulder of the right fixed shaft 19 and the right circlip 21. The outer ring of the right bearing 20 is fixed in the corresponding opening on the right side plate 14 through the right flange cover 22. The left flange cover 8 and the right flange cover 22 are respectively fixed on the left side plate 2 and the right side plate 14 by screws. The driven pulley 6 is connected to the left fixed shaft 16 by a key connection of the key 15. The axial position of the left fixed shaft 16 and the driven pulley 6 is fixed by a nut 7. A motor 3 is arranged below the top plate 1. The driving pulley 4 is installed on the power output shaft of the motor 3. The belt 5 is tensioned on the driving pulley 4 and the driven pulley 6. The power is transmitted to the left fixed shaft 16 through the driving pulley 4, the belt 5 and the driven pulley 6, and finally the power is transmitted to the polishing wheel 11 to realize the polishing process.

[0027] A further implementation scheme is that the driving pulley 4 and the motor 3 are connected by a key connection to ensure the transmission of power.

[0028] A further implementation scheme is that the clamping structure of the polishing wheel shaft of the present utility model is composed of a left fixed shaft 16, a right fixed shaft 19, a pressing member 9 and a pressing member 13. The polishing wheel 11 is installed on the polishing wheel shaft 12 through a shrink disc 10. Installation holes are provided at one end of the left fixed shaft 16 and the right fixed shaft 19 connected to the polishing wheel shaft 12. The axis of the installation hole is the same as that of the left fixed shaft 16 and the right fixed shaft 19, and the diameter of the installation hole is the same as the diameter of the polishing wheel shaft 12. The coaxiality of the polishing wheel 11, the polishing wheel shaft 12, the left fixed shaft 16 and the right fixed shaft 19 can be ensured by installing the polishing wheel shaft 12 into the installation hole. When the polishing wheel needs to be disassembled, first loosen the screws on the left pressing member 9 and the right pressing member 13, remove the left pressing member 9 and the right pressing member 13, and then the polishing wheel shaft 12 and the polishing wheel 11 fixed on the polishing wheel shaft 12 can be taken out. Then loosen the screws on the shrink disc 10, and the polishing wheel 11 can be disassembled. Install a new polishing wheel 11 on the shrink disc 10 and tighten the screws on the shrink disc 10 to fix the polishing wheel 11 on the polishing wheel shaft 12. Then install the polishing wheel shaft 12 into the installation holes of the left fixed shaft 16 and the right fixed shaft 19, and finally install the left pressing member 9 and the right pressing member 13 onto the left fixed shaft 16 and the right fixed shaft 19 respectively, and tighten the screws on the left pressing member 9 and the right pressing member 13, then the disassembly and replacement of the polishing wheel 11 can be completed.

[0029] When using this precision polishing device, start the motor 3, drive the motor 3 to drive the active pulley 4 to rotate, and drive the driven pulley 6 to rotate through the belt 5. The driven pulley 6 transmits power to the left fixed shaft 16 through the key 15, and then drives the polishing wheel shaft 12 to rotate through the left clamping piece 9, and transmits power to the polishing wheel 11 through the expansion sleeve 10 to realize the polishing process.

[0030] The above describes the embodiments of the present invention in detail in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by ordinary technicians in this field, various changes, modifications, substitutions and variations can be made without departing from the purpose of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A precision polishing device that is easy to disassemble, characterized in that, It includes a top plate (1), a left side plate (2), a right side plate (14), a power device, a transmission device, a shrink disc (10), a polishing wheel (11), a polishing wheel shaft (12), a left fixed shaft (16) and a right fixed shaft (19); The top ends of the left side plate (2) and the right side plate (14) are respectively fixed at both ends of the top plate (1). The power device drives the left fixed shaft (16) to move through the transmission device. The polishing wheel (11) is fixed on the polishing wheel shaft (12) through the shrink disc (10). Both ends of the polishing wheel shaft (12) are respectively fixed to the left fixed shaft (16) and the right fixed shaft (19) through a left pressing member (9) and a right pressing member (13). The first end of the left fixed shaft (16) is rotatably installed on the left side plate (2), and the second end of the right fixed shaft (19) is rotatably installed on the right side plate (14). Both the second end of the left fixed shaft (16) and the first end of the right fixed shaft (19) have semi-circular rings. The left pressing member (9) and the right pressing member (13) have the same structure and are both semi-circular rings. The left pressing member (9) and the left fixed shaft (16) are connected by fasteners, and the right pressing member (13) and the right fixed shaft (19) are connected by fasteners.

2. The precision polishing device that is easy to disassemble according to claim 1, wherein, The transmission device includes a driving pulley (4), a belt (5) and a driven pulley (6). The driving pulley (4) is installed on the power output shaft of the power device. The belt (5) is tensioned between the driving pulley (4) and the driven pulley (6). The driven pulley (6) is fixedly connected to the left fixed shaft (16).

3. The precision polishing device that is easy to disassemble according to claim 2, wherein The driving pulley (4) and the power output shaft of the power device are connected by a key.

4. The precision polishing device that is easy to disassemble according to claim 2, characterized in that, The driven pulley (6) and the left fixed shaft (16) are connected by a key.

5. The precision polishing device that is easy to disassemble according to claim 4, wherein, The axial position of the left fixed shaft (16) and the driven pulley (6) is fixed by a nut (7).

6. The precision polishing device that is easy to disassemble according to claim 1, wherein The left fixed shaft (16) is rotatably connected to the left side plate (2) through a left bearing (18), and the right fixed shaft (19) is rotatably connected to the right side plate (14) through a right bearing (20).

7. The precision polishing device that is easy to disassemble according to claim 6, characterized in that, The inner ring of the left bearing (18) is fixed by the shoulder of the left fixed shaft (16) and a left circlip (17), and the outer ring of the left bearing (18) is fixed to the left side plate (2) through a left flange cover (8). The inner ring of the right bearing (20) is fixed by the shoulder of the right fixed shaft (19) and a right circlip (21), and the outer ring of the right bearing (20) is fixed to the right side plate (14) through a right flange cover (22).

8. The precision polishing device that is easy to disassemble according to claim 1, wherein, The power device is a motor (3).

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