Polishing mechanism and machining device

Abstract

The utility model discloses a polishing mechanism and a machining device, the polishing mechanism comprises a first pressing piece, a second pressing piece and a first driving piece, and the second pressing piece is arranged on one side of the first pressing piece; a positioning part for positioning a workpiece is arranged between the first pressing piece and the second pressing piece; a grinding piece is arranged at the output end of the first driving piece, and the grinding piece is matched with the to-be-machined position of the workpiece and used for machining the to-be-machined position. Compared with the prior art, the positioning part is used for placing and positioning the battery cover, so that the battery cover can be effectively limited, the battery cover is prevented from moving during polishing, and the polishing precision is improved; the battery cover in the positioning part is pressed through the first pressing part and the second pressing part, the polishing part is used for milling the battery cover, and the battery cover is further prevented from shaking in the polishing process through the pressing effect, so that the deburring precision is improved; according to the machining device adopting the polishing mechanism, the working efficiency and the production precision of deburring of the battery cover can be improved to a great extent.

Description

Technical Field

[0001] The embodiments of the present utility model relate to the technical field of machining, and particularly to a grinding mechanism and a machining device. Background Art

[0002] Deburring is a process of removing small protrusions, edges or sharp corners on the surface of a workpiece. These protrusions are usually generated during manufacturing processes such as machining, casting, forging, and stamping.

[0003] Currently, during the production of batteries, burrs will be generated at the bottom of the inner cavity hole of the battery cover. In order to improve the product quality, the deburring process is usually carried out on the battery cover. However, due to the different structure of the battery cover from ordinary metal components, some deburring devices on the market are not applicable to the processing of the battery cover. Moreover, manual deburring has low efficiency, high scratch rate, and high labor cost, with poor economy and low processing efficiency. Summary of the Utility Model

[0004] In view of the deficiencies in the prior art, the present utility model provides a grinding mechanism and a machining device, which can improve the accuracy of deburring.

[0005] To achieve the above objectives, the present utility model adopts the following technical solutions:

[0006] A grinding mechanism includes a first pressing member, a second pressing member, and a first driving member. The second pressing member is disposed on one side of the first pressing member; a positioning portion for positioning a workpiece is provided between the first pressing member and the second pressing member; a grinding member is provided at the output end of the first driving member, and the grinding member is adapted to the workpiece's machining position for machining the machining position.

[0007] As one implementation manner, the positioning portion is disposed on the first pressing member, and the positioning portion is used for circumferentially positioning the workpiece.

[0008] As one implementation manner, the grinding mechanism includes a positioning member. One end of the positioning member is detachably connected to the second pressing member, and the other end is fixedly connected to the first pressing member; alternatively, one end of the positioning member is fixedly connected to the second pressing member, and the other end is detachably connected to the first pressing member.

[0009] As one implementation manner, the grinding mechanism includes a mounting member and a second driving member. The first driving member is connected to the mounting member, and the mounting member and the second pressing member are connected by the second driving member. The second driving member is used to drive the mounting member away from or close to the second pressing member.

[0010] As one of the implementation manners, the second driving member includes a calibration portion which is respectively abutted between the second pressing member and the mounting member. The number of the calibration portions is one group, or the number of the calibration portions is multiple groups, and the heights of the multiple calibration portions are different.

[0011] As one of the implementation manners, the second driving member includes a movable portion and a fixed portion. The fixed portion is connected to the second pressing member, the movable portion is connected to the mounting member, and the movable portion is movably arranged along the height direction of the fixed portion.

[0012] As one of the implementation manners, the grinding mechanism includes a guiding member which is fixedly arranged on the second pressing member, and the mounting member is slidably connected to the guiding member.

[0013] As one of the implementation manners, the guiding member includes a guide rod, a guide sleeve and a limiting portion. The guide rod is connected to the second pressing member, the mounting member is provided with a mounting hole, the guide sleeve is mounted in the mounting hole, and the guide sleeve is slidably connected to the guide rod. The limiting portion is connected to one end of the guide rod far away from the second pressing member to limit the separation of the guide sleeve from the guide rod.

[0014] As one of the implementation manners, an avoidance hole is formed in the positioning portion for the grinding member to extend into or for a partial structure of the workpiece to extend into.

[0015] The present utility model further provides a processing device for grinding a battery cover, which includes the grinding mechanism according to any one of the above embodiments, and the shape of the positioning portion matches the outer shape of the battery cover.

[0016] The beneficial effects of the present utility model are as follows: The embodiments of the present application provide a grinding mechanism and a processing device. The grinding mechanism includes a first pressing member, a second pressing member and a first driving member. The second pressing member is arranged on one side of the first pressing member; a positioning portion for positioning a workpiece is arranged between the first pressing member and the second pressing member; a grinding member is arranged at the output end of the first driving member, and the grinding member is adaptively arranged with the to-be-processed position of the workpiece for processing the to-be-processed position. Compared with the prior art, the positioning portion is used for placing the battery cover and positioning it, which can effectively limit the battery cover and prevent the battery cover from moving during grinding, thereby improving the grinding accuracy; and the battery cover in the positioning portion is pressed by the first pressing member and the second pressing member, and the grinding member mills the battery cover. The pressing action of the first pressing member and the second pressing member further prevents the battery cover from shaking during grinding, thereby improving the deburring accuracy; the processing device adopting the above grinding mechanism can greatly improve the processing efficiency and production accuracy of the battery cover deburring, and has high economy. Description of the Drawings

[0017] Figure 1 The structural schematic diagram of a grinding mechanism according to an embodiment of the present utility model is shown;

[0018] Figure 2 The exploded structural schematic diagram of a grinding mechanism according to an embodiment of the present utility model is shown;

[0019] Figure 3 The exploded structural schematic diagram of a processing device according to an embodiment of the present utility model is shown;

[0020] Figure 4 The cross-sectional schematic diagram of a processing device according to an embodiment of the present utility model is shown;

[0021] Reference numerals: 1, the first pressing member; 11, the positioning portion; 12, the handle position; 13, the avoidance hole;

[0022] 2, the second pressing member; 21, the operation hole;

[0023] 3, the first driving member; 31, the driving motor; 32, the coupling;

[0024] 4, the mounting member; 41, the mounting hole;

[0025] 5, the positioning member;

[0026] 6, the second driving member; 61, the calibration portion; 62, the movable portion; 63, the fixed portion;

[0027] 7, the guiding member; 71, the guide rod; 72, the guide sleeve; 73, the limiting portion;

[0028] 8, the grinding member; 9, the workpiece. Detailed implementation manners

[0029] In the present utility model, the terms "arranged", "provided with", and "connected" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral structure; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, or there may be internal communication between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0030] The orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application 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. Therefore, it should not be construed as a limitation to the present application.

[0031] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0032] Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present utility model can be understood according to specific circumstances.

[0033] In order to make the purpose, technical solution and advantages of the present utility model clearer, the following further describes the present utility model in detail with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0034] Refer to Figure 1 , an embodiment of the present application provides a processing device, including a grinding mechanism and a workpiece 9. The grinding mechanism includes a first pressing member 1, a second pressing member 2 and a first driving member 3. The second pressing member 2 is arranged on one side of the first pressing member 1; a positioning portion 11 for positioning the workpiece 9 is provided between the first pressing member 1 and the second pressing member 2; a grinding member 8 is provided at the output end of the first driving member 3, and the grinding member 8 is adaptively arranged with the to-be-processed position of the workpiece 9 for processing the to-be-processed position.

[0035] In practical applications, the workpiece 9 is placed within the positioning portion 11. The shape of the positioning portion 11 matches the outer shape of the battery cover. Therefore, the positioning portion 11 plays a role in limiting the battery cover, preventing the workpiece 9 from shaking. At the same time, since the positioning portion 11 is located between the first pressing member 1 and the second pressing member 2, the first pressing member 1 and the second pressing member 2 can respectively press the positioning portion 11 from opposite sides, playing a role in preventing the workpiece 9 from detaching from the positioning portion 11. The output end of the first driving member 3 is connected to a grinding member 8. One of the first pressing member 1 and the second pressing member 2 can be provided with an operation hole 21. The operation hole 21 communicates with the positioning portion 11, and the operation hole 21 allows the grinding member 8 to extend therein. The first driving member 3 drives the grinding member 8 to rotate, and the grinding member 8 grinds the workpiece 9 within the positioning portion 11 to achieve the effect of deburring.

[0036] It should be noted that the applicable fields of the processing device of the present application include, but are not limited to, the battery production field. When applicable to battery processing, the workpiece 9 is the corresponding product to be ground, such as structures like battery covers.

[0037] Compared with the prior art, the positioning portion 11 is used to place the battery cover and position it, which can effectively limit the battery cover and prevent the battery cover from moving during grinding, improving the grinding accuracy. And by pressing the battery cover within the positioning portion 11 with the first pressing member 1 and the second pressing member 2, and the grinding member 8 milling the battery cover, the pressing action of the first pressing member 1 and the second pressing member 2 further prevents the battery cover from shaking during grinding, thereby improving the deburring accuracy. The processing device adopting the above grinding mechanism can greatly improve the processing efficiency and production accuracy of deburring the battery cover, and has high economy.

[0038] It should be noted that the grinding member 8 can adopt structures such as milling cutters.

[0039] Refer to Figure 2 , the positioning portion 11 is provided on the first pressing member 1, and the positioning portion 11 is used for circumferentially positioning the workpiece 9.

[0040] In practical applications, the first pressing member 1 can be located below the second pressing member 2. Opening the positioning portion 11 on the first pressing member 1 is beneficial for placing the workpiece 9. The workpiece 9 is placed on the positioning portion 11. At the same time, the first pressing member 1 plays a role in supporting the workpiece 9, and the workpiece 9 will not fall. There is no need for manual pressing. The positioning portion 11 circumferentially limits the workpiece 9 to prevent the workpiece 9 from shaking horizontally and improve the grinding accuracy.

[0041] Refer to again Figure 2, the first pressing member 1 is provided with a finger hole 12 which communicates with the positioning portion 11 and is provided on the circumference of the positioning portion 11; with such a setting, when the workpiece 9 is placed on the positioning portion 11, since the outer shape of the positioning portion 11 matches the outer shape of the workpiece 9, the positioning portion 11 needs to perform circumferential limitation on the workpiece 9, then the edge of the positioning portion 11 fits against the workpiece 9, resulting in inconvenient removal of the workpiece 9, and the operator needs to exert great effort to remove the workpiece 9 from the positioning portion 11.

[0042] Based on this, the present application provides the finger hole 12 which allows the operator's finger to extend therein, facilitating the operator to remove the workpiece 9 and improving work efficiency.

[0043] Refer to Figure 3 , the grinding mechanism includes a positioning member 5, one end of the positioning member 5 is detachably connected to the second pressing member 2, and the other end is fixedly connected to the first pressing member 1.

[0044] In one embodiment, the first pressing member 1 and the second pressing member 2 need to approach each other to perform a pressing action on the positioning portion 11, and at the same time, when placing the workpiece 9, the first pressing member 1 and the second pressing member 2 also need to be separated. In order to achieve the functions of quickly pressing and separating the first pressing member 1 and the second pressing member 2. The present application provides the positioning member 5, one end of the positioning member 5 is detachably connected to the second pressing member 2, and the other end is fixedly connected to the first pressing member 1. When the workpiece 9 needs to be placed, the positioning member 5 is detached from the second pressing member 2, and the first pressing member 1 is separated from the second pressing member 2 to facilitate the placement of the workpiece 9; after the workpiece 9 is placed, the positioning member 5 is connected to the second pressing member 2, so that the first pressing member 1 approaches the second pressing member 2, and further the first pressing member 1 and the second pressing member 2 are pressed against each other to achieve the positioning function.

[0045] It should be noted that the positioning member 5 can be detachably connected to the second pressing member 2 by means of plugging or clamping, etc., and the present application does not limit this.

[0046] In one embodiment, one end of the positioning member 5 can be fixedly connected to the second pressing member 2, and the other end can be detachably connected to the first pressing member 1, which can also achieve the same above-mentioned functions.

[0047] Refer to again Figure 3 , the grinding mechanism includes a mounting member 4 and a second driving member 6, the first driving member 3 is connected to the mounting member 4, the mounting member 4 and the second pressing member 2 are connected by the second driving member 6, and the second driving member 6 is used to drive the mounting member 4 to move away from or close to the second pressing member 2.

[0048] In practical applications, when the grinding member 8 grinds the workpiece 9, the grinding depths of different workpieces 9 are different. Therefore, the present application is provided with a second driving member 6. The first driving member 3 is connected to the mounting member 4, and the second driving member 6 can drive the mounting member 4 to move, so as to adjust the distance between the mounting member 4 and the second pressing member 2. The mounting member 4 drives the first driving member 3 to move, and the driving end of the first driving member 3 is connected with the grinding member 8, thereby realizing the adjustment of the depth of the grinding member 8 extending into the workpiece 9 and meeting the grinding requirements of different workpieces 9.

[0049] Refer to again Figure 3 , in one embodiment, the second driving member 6 may include a calibration portion 61. The calibration portion 61 is respectively abutted between the second pressing member 2 and the mounting member 4. The number of the calibration portions 61 is one group, or the number of the calibration portions 61 is multiple groups, and the heights of the multiple calibration portions 61 are different.

[0050] In practical applications, the calibration portion 61 is respectively abutted between the mounting member 4 and the second pressing member 2 to limit the distance between the mounting member 4 and the second pressing member 2, so that the grinding member 8 grinds at a preset height. When it is necessary to adjust the grinding height, the distance between the mounting member 4 and the second pressing member 2 can be adjusted by replacing the calibration portions 61 with different heights, so as to realize the adjustment of the grinding depth of the grinding member 8 relative to the workpiece 9.

[0051] Refer to Figure 4 , in one embodiment, the second driving member 6 may include a movable portion 62 and a fixed portion 63. The fixed portion 63 is connected to the second pressing member 2, the movable portion 62 is connected to the mounting member 4, and the movable portion 62 is movably arranged along the height direction of the fixed portion 63.

[0052] Different from the above embodiment, in this embodiment, the second driving member 6 can adjust the grinding depth during the grinding process. Specifically, the second driving member 6 includes a movable portion 62 and a fixed portion 63. The movable portion 62 is movably connected to the fixed portion 63 so that the movable portion 62 can move along the height direction of the fixed portion 63. The fixed portion 63 is connected to the second pressing member 2, while the movable portion 62 is connected to the mounting member 4. Therefore, when the movable portion 62 moves along the height direction of the fixed portion 63, the movable portion 62 drives the mounting member 4 to move, so as to adjust the distance between the mounting member 4 and the second pressing member 2, and further adjust the grinding depth. And this method does not need to stop the grinding work. During the grinding process, the operator only needs to move the movable portion 62 to realize that the grinding member 8 grinds while adjusting the grinding depth, so that different depths of processing can be carried out on the same position of the workpiece 9, effectively improving the processing efficiency.

[0053] It should be noted that, in one embodiment, the movable part 62 can be rotatably connected to the mounting part 4 and threadedly connected to the fixed part 63. By rotating the movable part 62, the movable part 62 can be moved along the height direction of the fixed part 63. In some other embodiments, the movable part 62 and the fixed part 63 can also adopt other connection methods, which are not limited in this application.

[0054] Refer again to Figure 2 , the grinding mechanism includes a guide member 7. The guide member 7 is fixedly arranged on the second pressing member 2, and the mounting member 4 is slidably connected to the guide member 7.

[0055] In practical applications, the guide member 7 plays a guiding role. The mounting member 4 is slidably connected to the guide member 7. There can be multiple guide members 7, and the multiple guide members 7 are evenly spaced and connected to the second pressing member 2. On the one hand, it prevents the mounting member 4 from rotating relative to the second pressing member 2. On the other hand, the multiple guide members 7 can make the mounting member 4 slide more evenly and smoothly.

[0056] Refer again to Figure 2 , the guide member 7 includes a guide rod 71, a guide sleeve 72 and a limiting part 73. The guide rod 71 is connected to the second pressing member 2. The mounting member 4 is provided with a mounting hole 41. The guide sleeve 72 is installed in the mounting hole 41, and the guide sleeve 72 is slidably connected to the guide rod 71. The limiting part 73 is connected to the end of the guide rod 71 far from the second pressing member 2 to limit the guide sleeve 72 from disengaging from the guide rod 71.

[0057] In practical applications, one end of the guide rod 71 is connected to the second pressing member 2, and the other end passes through the mounting hole 41. The guide sleeve 72 is arranged in the mounting hole 41 and is slidably connected to the guide rod 71. The guide sleeve 72 is connected to the mounting member 4. The mounting member 4 slides on the guide rod 71 through the guide sleeve 72. On the one hand, the guide sleeve 72 can reduce the frictional loss of the mounting member 4. On the other hand, it can be closely matched with the guide rod to further improve the guiding accuracy and effectively limit its lateral displacement.

[0058] At the same time, in order to prevent the guide sleeve 72 from sliding out of the guide rod 71 during sliding, a limiting part 73 is arranged at the end of the guide rod 71 far from the second pressing member 2. The limiting part 73 is used to abut against the guide sleeve 72 to prevent the guide sleeve 72 from disengaging from the guide rod 71.

[0059] It should be noted that the guide sleeve 72 can adopt a structure such as a linear bearing.

[0060] Refer again to Figure 4 , an avoidance hole 13 is formed in the positioning part 11. The avoidance hole 13 is used for the grinding part 8 to extend into or for a partial structure of the workpiece 9 to extend into.

[0061] In practical applications, there may be structures such as protrusions on the surface of the workpiece 9. In order to enable the workpiece 9 to better adapt to the positioning portion 11, an avoidance hole 13 is provided in the positioning portion 11. The avoidance hole 13 is adapted to the protrusion structure of the workpiece 9, so that the protrusion portion of the workpiece 9 can be accommodated in the avoidance hole 13, further improving the positioning effect of the positioning portion 11 on the workpiece 9. At the same time, when the grinding member 8 grinds the workpiece 9, the avoidance hole 13 can allow the grinding member 8 to extend therein, preventing the grinding member 8 from extending too deep and colliding with the first pressing member 1. And a large amount of heat and grinding debris will be generated during the grinding process. The heat generated by grinding can be dissipated through the avoidance hole 13, reducing the temperature of the workpiece 9 and the grinding tool. At the same time, the grinding debris can also be discharged through the avoidance hole 13, preventing it from accumulating on the surface of the workpiece 9 and affecting the grinding effect.

[0062] Referring again to Figure 4 , in one embodiment, the second driving member 6 is located at the center of the mounting member 4, and the first driving member 3 is located at an eccentric position of the mounting member 4. Since the second driving member 6 needs to drive the mounting member 4 to move, the second driving member 6 is arranged at the center of the mounting member 4, and the driving force is more evenly distributed on the mounting member 4. In this way, the mounting member 4 can be more balanced during movement, reducing unstable phenomena such as shaking, tilting or twisting caused by uneven force. The first driving member 3 is mainly used to grind the workpiece 9 and is arranged at an eccentric position of the mounting member 4, which is convenient for adjusting the position of the first driving member 3 to make it adapt to the machining station of the workpiece 9.

[0063] Referring again to Figure 4 , the first driving member 3 includes a driving motor 31 and a coupling 32. The output end of the driving motor 31 is connected to the grinding member 8 through the coupling 32. The coupling 32 transmits the torque of the driving motor 31 to the grinding member 8. At the same time, the coupling 32 can compensate for axial deviation and radial deviation, improving the assembly efficiency of the device. And the installation and disassembly of the coupling 32 are more convenient. When a fault occurs in the grinding member 8, the coupling 32 can be taken out from the driving motor 31, facilitating the operator to replace or repair the grinding member 8.

[0064] It should be noted that the coupling 32 can adopt a rigid coupling 32. The structure of the rigid coupling 32 is relatively simple, so the manufacturing cost is relatively low. At the same time, its simple structure also makes the installation and maintenance relatively easy, without special maintenance measures, reducing the use cost and maintenance difficulty of the equipment.

[0065] Different from the prior art, the embodiment of the present application provides a grinding mechanism and a processing device. The grinding mechanism includes a first pressing member 1, a second pressing member 2, and a first driving member 3. The second pressing member 2 is disposed on one side of the first pressing member 1; a positioning portion 11 for positioning a workpiece 9 is provided between the first pressing member 1 and the second pressing member 2; a grinding member 8 is provided at the output end of the first driving member 3. The grinding member 8 is adaptively disposed with the to-be-processed position of the workpiece 9 and is used for processing the to-be-processed position. Compared with the prior art, the positioning portion 11 is used to place the battery cover and position it, which can effectively limit the battery cover and prevent the battery cover from moving during grinding, thereby improving the grinding accuracy; and the battery cover in the positioning portion 11 is pressed by the first pressing member 1 and the second pressing member 2, and the grinding member 8 mills the battery cover. The pressing action of the first pressing member 1 and the second pressing member 2 further prevents the battery cover from shaking during grinding, thereby improving the deburring accuracy; the processing device adopting the above grinding mechanism can greatly improve the processing efficiency and production accuracy of the battery cover deburring, and has high economy.

[0066] The above are only the specific embodiments of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and retouches can be made, and these improvements and retouches should also be regarded as the protection scope of the present application.

Claims

1. A grinding mechanism, characterized in that, including a first pressing member (1); a second pressing member (2) disposed on one side of the first pressing member (1); a positioning portion (11) for positioning a workpiece (9) is provided between the first pressing member (1) and the second pressing member (2); a first driving member (3), a grinding member (8) is provided at an output end of the first driving member (3), and the grinding member (8) is adaptively disposed with a machining position of the workpiece (9) for machining the machining position.

2. The grinding mechanism according to claim 1, wherein The positioning portion (11) is disposed on the first pressing member (1), and the positioning portion (11) is used for circumferentially positioning the workpiece (9).

3. The grinding mechanism according to claim 1, characterized in that, The grinding mechanism includes a positioning member (5), one end of the positioning member (5) is detachably connected to the second pressing member (2), and the other end is fixedly connected to the first pressing member (1); or one end of the positioning member (5) is fixedly connected to the second pressing member (2), and the other end is detachably connected to the first pressing member (1).

4. The grinding mechanism according to claim 1, wherein The grinding mechanism includes a mounting member (4) and a second driving member (6), the first driving member (3) is connected to the mounting member (4), the mounting member (4) and the second pressing member (2) are connected by the second driving member (6), and the second driving member (6) is used for driving the mounting member (4) to move away from or close to the second pressing member (2).

5. The grinding mechanism according to claim 4, characterized in that, The second driving member (6) includes a calibration portion (61), the calibration portion (61) is respectively abutted between the second pressing member (2) and the mounting member (4), the number of the calibration portions (61) is one group, or the number of the calibration portions (61) is multiple groups, and the heights of the multiple calibration portions (61) are different.

6. The grinding mechanism according to claim 4, wherein The second driving member (6) includes a movable portion (62) and a fixed portion (63), the fixed portion (63) is connected to the second pressing member (2), the movable portion (62) is connected to the mounting member (4), and the movable portion (62) is movably disposed along the height direction of the fixed portion (63).

7. The grinding mechanism according to claim 4, wherein The grinding mechanism includes a guiding member (7), the guiding member (7) is fixedly disposed on the second pressing member (2), and the mounting member (4) is slidably connected to the guiding member (7).

8. The grinding mechanism according to claim 7, characterized in that, The guiding member (7) includes a guide rod (71), a guide sleeve (72) and a limiting portion (73), the guide rod (71) is connected to the second pressing member (2), the mounting member (4) is provided with a mounting hole (41), the guide sleeve (72) is mounted in the mounting hole (41), and the guide sleeve (72) is slidably connected to the guide rod (71), the limiting portion (73) is connected to an end of the guide rod (71) away from the second pressing member (2) to limit the guide sleeve (72) from disengaging from the guide rod (71).

9. The grinding mechanism according to claim 1, wherein An avoidance hole (13) is formed in the positioning portion (11), and the avoidance hole (13) is used for the grinding member (8) to extend into or for a partial structure of the workpiece (9) to extend into.

10. A processing device for polishing a battery cover, characterized in that, including the grinding mechanism according to any one of claims 1-9, and the shape of the positioning portion (11) matches the outer shape of the battery cover.

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