Aluminum plate surface polishing machining device

Abstract

The utility model is applicable to the technical field of processing equipment, and provides an aluminum plate surface polishing processing device, which comprises a conveying mechanism, a polishing mechanism, a lifting adjusting component, a driving mechanism, a driving mechanism, a driving mechanism, a driving mechanism, a driving mechanism, a driving mechanism and a driving mechanism, and is characterized in that the conveying mechanism is provided with a bottom plate and a top plate symmetrically arranged above the bottom plate, and the fixing plate is fixedly mounted at the top end of the top plate; the two lifting adjusting assemblies are symmetrically arranged on the two sides of the conveying mechanism correspondingly, a grinding assembly is movably connected into each lifting adjusting assembly, and when an aluminum plate body is conveyed in the conveying mechanism, the grinding assemblies on the two sides are adjusted to be close to the aluminum plate body and attached to the two side faces of the aluminum plate body; the lifting adjusting assembly controls the grinding longitudinal movement, the grinding assembly is used for synchronously grinding the two side faces of the aluminum plate body at the same time, the procedure that one face is machined and then turned over, and the other face is machined is omitted, and the production efficiency of equipment is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of processing equipment, and in particular relates to a surface grinding processing device for an aluminum plate. Background Art

[0002] Aluminum plate is a rectangular plate made by rolling aluminum ingots. Aluminum plate is used more and more widely. After the aluminum plate is cut, the cut surface of the aluminum plate is rough and not smooth, which affects normal use and is not beautiful. Therefore, it needs to be polished by a polishing device before subsequent use.

[0003] The Chinese utility model patent with publication number CN218081823U, a device for grinding and processing the surface of an aluminum plate, includes a workbench, a shell, a second motor, a grinding sheet and an adjustment component, the adjustment component includes a hydraulic rod, a connecting plate and a wire-releasing component, the hydraulic rod is fixedly connected to the shell and is located on one side of the shell; the connecting plate is fixedly connected to the output end of the hydraulic rod and is fixedly connected to the second motor; the wire-releasing component is fixedly connected to the shell and is located on one side of the shell; the hydraulic rod serves as a power source to drive the second motor to move up and down; the connecting plate is used to fix the second motor and the hydraulic rod, and the wire-releasing component is used to release the wire synchronously with the hydraulic rod to avoid breaking the power cord of the second motor when the hydraulic rod is working; through the cooperation of the hydraulic rod and the wire-releasing component, the grinding sheet can be automatically raised and lowered, thereby solving the problem that the existing device requires manual rotation of the rotating disk to drive the screw to rotate, the degree of automation is not high, and the operation is relatively cumbersome.

[0004] However, the above device has the following technical problems when actually used:

[0005] 1. After the above-mentioned device clamps the aluminum plate through the clamping mechanism arranged on the shell, the second motor output end is used to drive the grinding disc to rotate so as to grind one side of the aluminum plate. After the grinding of the side is completed, the aluminum plate is turned over by rotating the clamping mechanism to grind the other side. However, this method causes the above-mentioned device to be able to grind only one side of the aluminum plate at a time, and it is impossible to grind both sides of the aluminum plate at the same time. After each processing is completed, a turning operation is required, which greatly affects the processing rhythm of the above-mentioned device and reduces the processing efficiency.

[0006] Second, in addition, the above device cannot realize continuous feeding of aluminum plates. The clamping mechanism can only clamp a single aluminum plate at a time. Therefore, manual labor is required to continuously load and unload aluminum plates on the clamping mechanism, which greatly consumes the labor required by manual labor. Each loading and unloading of aluminum plates requires a lot of time. Utility Model Content

[0007] The utility model provides an aluminum plate surface grinding processing device, aiming to solve the problem mentioned in the above background technology that the above device can only grind one side of the aluminum plate each time, and cannot grind both sides of the aluminum plate at the same time, which reduces the production rhythm of the above device and affects the production efficiency. At the same time, the clamping mechanism in the above device can only load one aluminum plate, and the aluminum plate needs to be manually loaded and unloaded after each processing is completed, which not only consumes manual labor but also wastes a lot of time.

[0008] The utility model is implemented as follows: an aluminum plate surface grinding processing device comprises: a conveying mechanism, which has: a bottom plate and a top plate symmetrically arranged above the bottom plate, an aluminum plate workpiece to be processed is vertically arranged between the bottom plate and the top plate, and a plurality of aluminum plate workpieces are sequentially and orderly transmitted into the conveying mechanism, a fixed plate, which is fixedly installed on the top of the top plate, and a grinding mechanism, which has: a lifting and adjusting component movably connected to both ends of the fixed plate, and two lifting and adjusting components are symmetrically arranged on both sides of the conveying mechanism, each of the lifting and adjusting components is movably connected with a grinding component, the grinding component faces the conveying mechanism, and is used to grind the surfaces of both sides of the aluminum plate workpiece transmitted in the conveying mechanism; in this scheme, the present The device arranges the aluminum plate body to be processed vertically and passes the aluminum plate body through the conveying mechanism in sequence. On the one hand, it can realize the fully automatic conveying of the aluminum plate body. Manual workers only need to load the aluminum plate body at the loading position and receive the aluminum plate body at the unloading position, which reduces the time and energy required for equipment shutdown waiting for manual loading and unloading, thereby improving the working efficiency of the equipment. On the other hand, when the aluminum plate body is transmitted in the conveying mechanism, the grinding components on both sides are adjusted to approach the aluminum plate body and fit onto the two side surfaces of the aluminum plate body, and the lifting and adjusting components control the longitudinal movement of the grinding, and the grinding components are used to grind the two side surfaces of the aluminum plate body simultaneously, thereby omitting the process of processing one side and then turning over to process the other side, thereby improving the production efficiency of the equipment.

[0009] Preferably, the conveying mechanism further comprises: a plurality of mounting seats fixedly mounted on the bottom wall of the bottom plate at equal intervals along the length of the bottom plate, and a plurality of support seats are arranged between the bottom plate and the top plate at equal intervals along their lengths, each group of support seats comprises: support rods symmetrically arranged on both sides of the top plate, and the top end of each support rod is fixedly connected to the side wall of the top plate, and the bottom end thereof is fixedly connected to the side wall of the bottom plate, and a sinking groove is provided on the top wall of the bottom plate and the bottom wall of the top plate, and a plurality of rotating rollers are rotatably connected in the sinking groove at equal intervals along their length, and a flexible sleeve is wrapped on the outer wall of each rotating roller, and both sides of the aluminum plate workpiece The ends extend into the sink grooves on both sides respectively, and slide in cooperation with the rotating rollers on both sides; in this scheme, the device is supported and fixed by multiple mounting seats arranged under the bottom plate to prevent sliding during processing, and at the same time, the top plate is horizontally arranged above the bottom plate, and multiple groups of support seats are used to achieve a stable installation of the top plate above the bottom plate. At the same time, when the aluminum plate body is being transported, its top end slides in the sink groove opened on the bottom wall of the top plate, and its bottom end slides in the sink groove opened on the top wall of the bottom plate. At the same time, the two ends of the aluminum plate body are respectively in contact with multiple rotating rollers rotatably arranged in the sink groove, and the rotating rollers are used to reduce the friction resistance of the aluminum plate body during transportation.

[0010] It should be explained that the flexible sleeve sleeved on the outer wall of the rotating roller can reduce the friction between the end of the aluminum plate body and the outer wall of the rotating roller, thereby reducing the wear of the rotating roller on the aluminum plate body.

[0011] Preferably, both ends of the fixed plate are provided with sliding grooves, and a slider is slidably connected in each of the sliding grooves, wherein limit blocks are fixedly installed on the inner walls on both sides of the sliding groove along the sliding direction of the slider, and limit grooves are also provided on the inner walls on both sides of the slider, and the limit blocks are slidably connected in the limit grooves; in this scheme, the distance between the grinding assembly and the conveying mechanism (or the distance between the two groups of grinding assemblies) can be adjusted by the slider slidably connected in the sliding groove, so as to facilitate adjustment according to the actual thickness of the aluminum plate body being conveyed, so that the grinding assembly is attached to the outer wall of the aluminum plate body to achieve grinding, thereby increasing the scope of application of the device.

[0012] It should be explained that, by providing the limit block and the limit groove, on the one hand, it can guide the sliding of the slider, and on the other hand, it can also prevent the slider from falling from the slide groove, thereby ensuring the normal operation of the device.

[0013] Preferably, a bidirectional screw is rotatably connected in the fixed plate, and opposite threaded sections on both sides of the bidirectional screw are respectively arranged in the sliding grooves on both sides, and each of the sliding blocks is threadedly cooperated with the threaded sections of the bidirectional screw on the corresponding side, and both ends of the bidirectional screw extend to the outside of the fixed plate respectively and are fixedly installed with a turning handle; in this scheme, the bidirectional screw is driven to rotate manually by turning the turning handle, and the opposite threaded sections on both sides of the bidirectional screw then precisely drive the sliding blocks on both sides to move toward or away from each other, thereby facilitating manual and precise adjustment of the spacing between the grinding assemblies on both sides, so as to ensure that the grinding assemblies on both sides are accurately fitted to the outer wall of the aluminum plate body.

[0014] Preferably, the lifting and adjusting assembly comprises: a connecting plate, one end of which is fixedly connected to the bottom wall of the sliding slider, and a movable frame is fixedly installed on the bottom wall of the other end, the movable frame is longitudinally opened with a movable groove, and an adjusting screw is arranged in the movable groove, and its two ends are rotatably connected to the inner top wall and the inner bottom wall of the movable groove respectively. The connecting plate is also fixedly connected to the first motor, and its output end is fixedly connected to the end of the adjusting screw, and a guide rod is also arranged on one side of the adjusting screw, and at least one lifting seat is also arranged in the movable groove, each of the lifting seats is threadedly connected to the adjusting screw and slidably cooperates with the guide rod; in this scheme, when the output end of the first motor rotates, it will control the rotation of the adjusting screw, and the adjusting screw further controls the lifting seat threadedly cooperated with it to move up and down in the movable groove under the guidance and limiting action of the guide rod, thereby controlling the lifting movement of the grinding assembly to increase the grinding range of the grinding assembly.

[0015] Preferably, the grinding assembly includes: a second motor is fixedly mounted on the side wall of each lifting seat away from the conveying mechanism, and its output end passes through the lifting seat and is detachably fixedly mounted with a grinding plate; in this scheme, when the output end of the second motor rotates, the rotation of the grinding plate will be controlled, and when the grinding plate and the outer wall of the aluminum plate body are in contact, the grinding processing of the aluminum plate body will be realized.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows: the aluminum plate surface grinding processing device of the utility model:

[0017] 1. This device can realize the full-automatic transportation of the aluminum plate body by longitudinally arranging the aluminum plate body to be processed and passing the aluminum plate body through the conveying mechanism in sequence. Manual labor only needs to load the aluminum plate body at the loading position and receive the aluminum plate body at the unloading position, which reduces the time and energy required for equipment shutdown waiting for manual loading and unloading, and improves the working efficiency of the equipment. On the other hand, when the aluminum plate body is transmitted in the conveying mechanism, the grinding components on both sides are adjusted to approach the aluminum plate body and fit on the two side surfaces of the aluminum plate body, and the lifting and adjusting components control the longitudinal movement of the grinding. The grinding components are used to grind the two side surfaces of the aluminum plate body synchronously at the same time, which omits the process of processing one side and then turning over to process the other side, thereby improving the production efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a side sectional view of the utility model;

[0019] Figure 2 It is a front view of the utility model;

[0020] Figure 3 It is a top view of the utility model;

[0021] In the figure:

[0022] 1. Conveying mechanism; 11. Bottom plate; 12. Top plate; 13. Mounting seat; 14. Support rod; 15. Sink; 16. Flexible sleeve;

[0023] 2. Fixed plate; 21. Slide; 22. Sliding block; 23. Limit block; 24. Limit groove; 25. Bidirectional screw; 251. Turn handle;

[0024] 3. Grinding mechanism; 31. Lifting and adjusting assembly; 311. Connecting plate; 312. Movable frame; 313. Movable groove; 314. Adjusting screw; 315. Guide rod; 316. First motor; 317. Lifting seat; 32. Grinding assembly; 321. Second motor; 322. Grinding disc. DETAILED DESCRIPTION

[0025] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0026] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0027] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] See also Figure 1-3 The utility model provides a technical solution: a surface grinding processing device for an aluminum plate, comprising: a conveying mechanism 1, which has: a bottom plate 11 and a top plate 12 symmetrically arranged above the bottom plate 11, an aluminum plate workpiece to be processed is vertically arranged between the bottom plate 11 and the top plate 12, and multiple aluminum plate workpieces are sequentially and orderly transmitted into the conveying mechanism 1, a fixed plate 2, which is fixedly installed on the top of the top plate 12, and a grinding mechanism 3, which has: a lifting and adjusting component 31 movably connected to both ends of the fixed plate 2, and the two lifting and adjusting components 31 are symmetrically arranged on both sides of the conveying mechanism 1, each lifting and adjusting component 31 is movably connected with a grinding component 32, the grinding component 32 faces the conveying mechanism 1, and is used to grind the surfaces of both sides of the aluminum plate workpiece transmitted in the conveying mechanism 1.

[0031] Specifically, one end of the multiple rotating rollers in the base plate 11 extends to the outside of the trough 15, and a transmission sprocket is fixedly connected to the end of each rotating roller, and a transmission chain is connected between each two adjacent transmission sprockets, and the end of one of the rotating rollers is fixedly connected to the output end of the traveling motor. The traveling motor is fixedly installed on the side wall of the base plate 11. When the output end of the traveling motor rotates, it will drive the rotating roller fixed thereto to rotate. The rotating roller controls the synchronous rotation of multiple rotating rollers through the transmission chain and the transmission sprocket, thereby realizing the automatic transmission of the aluminum plate body in the conveying mechanism 1.

[0032] Furthermore, the conveying mechanism 1 also includes: a plurality of mounting seats 13 fixedly installed on the bottom wall of the bottom plate 11 at equal intervals along its length, and a plurality of support seats are arranged between the bottom plate 11 and the top plate 12 at equal intervals along their length, and each group of support seats has: support rods 14 symmetrically arranged on both sides of the top plate 12, and the top end of each support rod 14 is fixedly connected to the side wall of the top plate 12, and the bottom end thereof is fixedly connected to the side wall of the bottom plate 11, and a sinking groove 15 is provided on the top wall of the bottom plate 11 and the bottom wall of the top plate 12, and a plurality of rotating rollers are rotatably connected in the sinking groove 15 at equal intervals along its length, and a flexible sleeve 16 is wrapped on the outer wall of each rotating roller, and the two ends of the aluminum plate workpiece extend into the sinking grooves 15 on both sides respectively, and slideably cooperate with the rotating rollers on both sides.

[0033] Specifically, in order to prevent the aluminum plate body from tilting during sliding, two protective plates are symmetrically arranged along the length of each trough 15, and threaded rods are threadedly connected to the side walls of the top plate 12 and the bottom plate 11. The end of the threaded rod close to the trough 15 is movably connected to the protective plate on the corresponding side. When the threaded rod is rotated, the protective plates on both sides can be controlled to move closer or farther away, thereby adjusting the distance between the two protective plates so as to facilitate adjustment according to the actual thickness of the aluminum plate body, thereby ensuring that the aluminum plate body is transported upright via the conveying mechanism 1.

[0034] In addition, the flexible sleeve 16 can be made of rubber material to reduce the wear on the end of the aluminum plate body.

[0035] Furthermore, both ends of the fixed plate 2 are provided with sliding grooves 21, and a slider 22 is slidably connected in each sliding groove 21, wherein limiting blocks 23 are fixedly installed on the inner walls on both sides of the sliding groove 21 along the sliding direction of the slider 22, and limiting grooves 24 are also provided on the inner walls on both sides of the slider 22, and the limiting blocks 23 are slidably connected in the limiting grooves 24.

[0036] Furthermore, a bidirectional screw 25 is rotatably connected in the fixed plate 2, and the opposite threaded sections on both sides of the bidirectional screw 25 are respectively arranged in the sliding grooves 21 on both sides, and each slider 22 is respectively threadedly engaged with the threaded section of the bidirectional screw 25 on the corresponding side. The two ends of the bidirectional screw 25 respectively extend to the outside of the fixed plate 2 and are fixedly installed with a turning handle 251.

[0037] Furthermore, the lifting and adjusting component 31 includes: a connecting plate 311, one end of which is fixedly connected to the bottom wall of the slider 22, and a movable frame 312 is fixedly installed on the bottom wall of the other end, a movable groove 313 is longitudinally opened in the movable frame 312, and an adjusting screw 314 is arranged in the movable groove 313, and its two ends are respectively rotatably connected to the inner top wall and the inner bottom wall of the movable groove 313, and a first motor 316 is also fixedly connected to the connecting plate 311, and its output end is fixedly connected to the end of the adjusting screw 314, and a guide rod 315 is also arranged on one side of the adjusting screw 314, and at least one lifting seat 317 is also arranged in the movable groove 313, and each lifting seat 317 is threadedly connected to the adjusting screw 314 and slidably cooperates with the guide rod 315.

[0038] Specifically, two lifting seats 317 can be provided in the movable groove 313 in the present device, and the two lifting seats 317 are distributed at intervals along the longitudinal direction. By providing two lifting seats 317, the number of grinding components 32 is increased, and at the same time, the grinding range of a single grinding component 32 can be reduced, thereby accelerating the transmission rate of the aluminum plate body on the conveying mechanism 1, and further improving the processing efficiency of the present device.

[0039] Furthermore, the grinding assembly 32 includes: a second motor 321 is fixedly mounted on the side wall of each lifting seat 317 away from the conveying mechanism 1, and the output end of the second motor 321 passes through the lifting seat 317 and is detachably fixedly mounted with a grinding sheet 322.

[0040] Specifically, a mounting base can be installed on the output end of the second motor 321, and the grinding disc 322 is screwed or clamped in the mounting base through an indentation block, which can facilitate subsequent staff to disassemble and replace the grinding disc 322 according to actual processing conditions.

[0041] The working principle and use process of this utility model:

[0042] The aluminum plate body is vertically arranged between the bottom plate 11 and the top plate 12, and the two ends of the aluminum plate body are respectively slidably fitted in the two side sink grooves 15;

[0043] When the aluminum plate body moves to the position of the grinding mechanism 3, the handle 251 is manually turned to control the two sliders 22 to move toward each other, and the grinding sheets 322 on both sides are attached to the outer walls of the aluminum plate body on both sides. Then the output end of the first motor 316 controls the rotation of the adjusting screw 314. The adjusting screw 314 controls the longitudinal lifting and lowering of the lifting seat 317 in the movable groove 313 with the cooperation of the guide rod 315. At the same time, the output end of the second motor 321 controls the rotation of the grinding sheet 322. As the aluminum plate body is gradually transmitted in the conveying mechanism 1, the grinding sheet 322 gradually realizes the grinding processing of the outer wall of the aluminum plate body.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for grinding and processing the surface of an aluminum plate, characterized in that: include: A conveying mechanism (1) comprising: A bottom plate (11) and a top plate (12) symmetrically arranged above the bottom plate (11), an aluminum plate workpiece to be processed is vertically arranged between the bottom plate (11) and the top plate (12), and a plurality of aluminum plate workpieces are sequentially and orderly transported into the conveying mechanism (1); A fixed plate (2) fixedly mounted on the top of the top plate (12); A grinding mechanism (3) comprising: A lifting and adjusting assembly (31) is movably connected to both ends of the fixed plate (2), and the two lifting and adjusting assemblies (31) are symmetrically arranged on both sides of the conveying mechanism (1), and each lifting and adjusting assembly (31) is movably connected with a grinding assembly (32), and the grinding assembly (32) faces the conveying mechanism (1) and is used to grind the surfaces on both sides of the aluminum plate workpiece transported in the conveying mechanism (1).

2. The aluminum plate surface grinding device according to claim 1, characterized in that: The conveying mechanism (1) further comprises: A plurality of mounting seats (13) are fixedly mounted on the bottom wall of the bottom plate (11) at equal intervals along the length thereof, and a plurality of support seats are arranged between the bottom plate (11) and the top plate (12) at equal intervals along the length thereof, and each group of support seats comprises: support rods (14) symmetrically arranged on both sides of the top plate (12), and the top end of each support rod (14) is fixedly connected to the side wall of the top plate (12), and the bottom end thereof is fixedly connected to the side wall of the bottom plate (11); Furthermore, a groove (15) is provided on the top wall of the bottom plate (11) and the bottom wall of the top plate (12), and a plurality of rotating rollers are rotatably connected at equal intervals along the length of the groove (15), and the outer wall of each rotating roller is wrapped with a flexible sleeve (16), and the two ends of the aluminum plate workpiece extend into the grooves (15) on both sides respectively, and are slidably matched with the rotating rollers on both sides.

3. The aluminum plate surface grinding device according to claim 1, characterized in that: Both ends of the fixed plate (2) are provided with sliding grooves (21), and each of the sliding grooves (21) is slidably connected with a sliding block (22); Wherein, limit blocks (23) are fixedly installed on both side inner walls of the slide groove (21) along the sliding direction of the slider (22), and limit grooves (24) are also provided on both side inner walls of the slider (22), and the limit blocks (23) are slidably connected in the limit grooves (24).

4. The aluminum plate surface grinding device according to claim 3, characterized in that: A bidirectional screw (25) is also rotatably connected in the fixing plate (2), and the threaded sections on opposite sides of the bidirectional screw (25) are respectively arranged in the slide grooves (21) on both sides, and each of the sliding blocks (22) is respectively threadedly engaged with the threaded section of the bidirectional screw (25) on the corresponding side; Both ends of the bidirectional screw rod (25) extend to the outside of the fixing plate (2) respectively and are fixedly mounted with a turning handle (251).

5. The aluminum plate surface grinding device according to claim 3, characterized in that: The lifting and lowering adjustment component (31) comprises: A connecting plate (311), one end of which is fixedly connected to the bottom wall of the sliding block (22), and a movable frame (312) is fixedly installed on the bottom wall of the other end, and a movable groove (313) is longitudinally provided in the movable frame (312); An adjusting screw (314) is arranged in the movable groove (313), and its two ends are rotatably connected to the inner top wall and the inner bottom wall of the movable groove (313) respectively. A first motor (316) is also fixedly connected to the connecting plate (311), and its output end is fixedly connected to the end of the adjusting screw (314), and a guide rod (315) is also arranged on one side of the adjusting screw (314); At least one lifting seat (317) is also arranged in the movable groove (313), and each of the lifting seats (317) is threadedly connected to the adjusting screw (314) and slidably matched with the guide rod (315).

6. The aluminum plate surface grinding device according to claim 5, characterized in that: The grinding assembly (32) comprises: A second motor (321) is fixedly mounted on the side wall of each lifting seat (317) away from the conveying mechanism (1), and an output end thereof passes through the lifting seat (317) and is detachably fixedly mounted with a grinding sheet (322).

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