Surface treatment equipment for magnetic ring machining

Abstract

The utility model discloses surface treatment equipment for magnetic ring machining, and relates to the technical field of magnetic ring machining. The device comprises a bottom plate, a bearing plate and a top plate which are horizontally arranged in sequence from bottom to top, the bottom plate, the bearing plate and the top plate are connected through a lifting assembly; the lifting assembly is used for adjusting the relative distance between the bearing plate and the top plate. A magnetic ring clamping assembly is arranged on the upper surface of the bearing plate; a rotary driving assembly is arranged on the top plate; a pair of grinding rollers corresponding to the magnetic ring clamping assemblies is vertically connected to the rotary driving assembly. The rotary driving assembly is connected with an adjusting assembly used for adjusting the relative distance between the two grinding rollers. The magnetic ring surface treatment device is reasonable in structural design and convenient to use, the surface treatment efficiency and effect of a magnetic ring are effectively improved, and meanwhile the machining quality of the magnetic ring is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of magnetic ring processing, in particular to a surface treatment device used for magnetic ring processing. Background Art

[0002] The Chinese patent with the authorization announcement number CN218696876U discloses a surface treatment device for the inner ring of a magnetic ring, which is arranged on the outer side of a driving rod, and then the driving rod is moved between the first support plate and the second support plate, and then connected with the first support plate clamping plate and the second support plate limit plate, and the magnetic ring is moved to the outer side of the two grinding plates, and the driving ring is rotated, and the driving ring and the corresponding second screw thread move, so that the second screw can be moved outward to control the grinding plate and the inner ring of the magnetic ring to be pressed tightly, and then the motor is started to rotate the clamping plate to drive the driving ring. The rod rotates, the magnetic ring contacts the grinder, and the outer side of the magnetic ring is grinded; when the inner ring needs to be grinded, the bidirectional screw can be turned to control the two clamping plates to approach each other to clamp the outer side of the magnetic ring, and then the contact strength between the two grinding plates and the inner ring of the magnetic ring is adjusted, and the motor is started again to drive the two grinding plates to rotate, so that the inner ring of the magnetic ring can be grinded; when the magnetic ring needs to be removed, the limit plate can be lifted, and the driving rod can be moved to separate the card slot from the card plate, and then the driving rod can be moved out from between the first support plate and the second support plate to remove the magnetic ring. The above device has the following disadvantages: since the magnetic ring needs to be sleeved on the outside of the driving rod, and the two ends of the driving rod need to be supported by the first support plate and the second support plate, the installation and disassembly of the magnetic ring will be cumbersome, affecting the surface treatment efficiency of the magnetic ring; and, when the magnetic ring is installed on the driving rod, the two second screws need to be adjusted separately to achieve the positioning of the magnetic ring, which may cause the central axis of the magnetic ring to not coincide with the central axis of the driving rod, thereby causing the outer surface of the magnetic ring to be polished into a non-circular shape, affecting the production quality of the magnetic ring. Therefore, it is urgent to study a surface treatment device for magnetic ring processing in order to solve the above problems. Utility Model Content

[0003] The utility model provides a surface treatment device for magnetic ring processing, and its purpose is to solve the technical problems raised in the above background technology.

[0004] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0005] The utility model is a surface treatment device for magnetic ring processing, comprising a bottom plate, a bearing plate and a top plate which are horizontally arranged in sequence from bottom to top; the bottom plate, the bearing plate and the top plate are connected by a lifting assembly; the lifting assembly is used to adjust the relative distance between the bearing plate and the top plate; a magnetic ring clamping assembly is installed on the upper surface of the bearing plate; a rotating drive assembly is installed on the top plate; a pair of grinding rollers corresponding to the magnetic ring clamping assembly are vertically connected to the rotating drive assembly; an adjusting assembly for adjusting the relative distance between the two grinding rollers is connected to the rotating drive assembly.

[0006] As a preferred technical solution of the utility model, the lifting assembly includes a screw rod rotatably connected to a corner of the base plate and three guide rods vertically fixed at the other three corners of the base plate; the upper end of the screw rod is rotatably connected to the top plate; the screw rod has a threaded sleeve; the screw sleeve is fixedly inserted into the bearing plate; the upper ends of the three guide rods are all fixed to the top plate; the three guide rods are all slidably provided with sliding sleeves; the three sliding sleeves are all fixedly inserted into the bearing plate.

[0007] As a preferred technical solution of the utility model, the magnetic ring clamping assembly includes a support seat horizontally fixed to the upper surface of the base plate; the support seat is in a "cross" shape; the upper surfaces of the four ends of the support seat are provided with scale lines along the length direction; the four ends of the support seat are provided with slide grooves along the length direction; a first slider is slidably connected to the slide groove; a clamping plate is vertically fixed to the top surface of the first slider; a pair of accommodating holes are provided side by side on the top surface of the first slider; the two accommodating holes are respectively arranged on opposite sides of the clamping plate; at least one of the accommodating holes is threaded with a positioning column; the lower end of the positioning column can be in conflict with the upper surface of the end of the support seat.

[0008] As a preferred technical solution of the utility model, a circular receiving opening is provided on the upper surface of the top plate; the rotary drive assembly includes a bracket fixed on the upper surface of the top plate; a servo motor is vertically fixed on the bracket; a driving block is fixed on the output shaft of the servo motor; the driving block is arranged on the inner side of the circular receiving opening; a transmission shaft is horizontally inserted through the lower part of the driving block; connecting sleeves are provided at both ends of the transmission shaft; the two connecting sleeves are respectively inserted and arranged on the vertical sections of a pair of symmetrically arranged L-shaped plates; the horizontal sections of the two L-shaped plates are respectively rotatably connected to the upper ends of the two grinding rollers.

[0009] As a preferred technical solution of the utility model, the transmission shaft is slidably matched with the connecting sleeve; the adjustment assembly includes an annular guide rail coaxially fixed at the upper edge of the circular receiving opening; a bidirectional screw rod parallel to the transmission shaft is arranged on the inner side of the annular guide rail; the bidirectional screw rod is rotatably inserted into the upper part of the driving block; both ends of the bidirectional screw rod are rotatably connected to a second slider; the two second sliders are slidably connected to the annular guide rail; the two threaded sections of the bidirectional screw rod are threadedly matched with nuts; the two nuts are respectively fixed and inserted into the vertical sections of the two L-shaped plates.

[0010] As an optimal technical solution of the utility model, the output shaft of the servo motor is coaxially arranged with the circular receiving opening; the driving block is rotatably connected with the transmission shaft; a bevel gear ring coaxially arranged with the circular receiving opening is horizontally arranged below the transmission shaft; the bevel gear ring is arranged below the top plate; the bevel gear ring is fixed to the top plate through a plurality of L-shaped frames; a first bevel gear is meshed on the bevel gear ring; the first bevel gear fixing sleeve is arranged on one end of the transmission shaft; the transmission shaft is slidably connected with the connecting sleeve; the connecting sleeve is rotatably connected with the vertical section of the L-shaped plate; the outer peripheral fixing sleeve of the connecting sleeve is provided with a second bevel gear; a third bevel gear is meshed on the second bevel gear; the third bevel gear fixing sleeve is arranged on the upper end of the grinding roller.

[0011] The utility model has the following beneficial effects:

[0012] The utility model places the magnetic ring horizontally on the magnetic ring clamping assembly, and then uses the lifting assembly to adjust the relative distance between the bearing plate and the top plate, so that the magnetic ring and the grinding roller are in corresponding position, and then adjusts the relative distance between the two grinding rollers through the adjusting assembly, so that the two grinding rollers are simultaneously in conflict with the circumferential outer wall or the circumferential inner wall of the magnetic ring, and also realizes the position correction of the magnetic ring, and then uses the magnetic ring clamping assembly to lock the position of the magnetic ring, and finally drives the two grinding rollers to rotate synchronously through the rotating driving assembly, so as to realize the grinding treatment of the circumferential outer wall or the circumferential inner wall of the magnetic ring, which not only effectively improves the surface treatment efficiency of the magnetic ring, but also ensures the processing quality of the magnetic ring.

[0013] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1The utility model is a schematic structural diagram of a surface treatment device for magnetic ring processing.

[0016] Figure 2 for Figure 1 The main view of the structure.

[0017] Figure 3 It is a structural schematic diagram of the lifting assembly of the utility model.

[0018] Figure 4 It is a structural schematic diagram of the clamping assembly of the utility model.

[0019] Figure 5 It is a structural schematic diagram of the rotary drive assembly of the utility model being arranged on the top plate.

[0020] Figure 6 It is a structural schematic diagram of the connection between the rotary drive component and the adjustment component of the utility model.

[0021] Figure 7 It is a structural schematic diagram of the rotary drive assembly of the utility model.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1-bottom plate, 2-bearing plate, 3-top plate, 4-lifting assembly, 5-magnetic ring clamping assembly, 6-rotation drive assembly, 7-adjusting assembly, 8-grinding roller, 401-screw, 402-guide rod, 403-screw sleeve, 404-sleeve, 501-support seat, 502-slide groove, 503-first slider, 504-clamping plate, 505-accommodating hole, 506-positioning column, 601-bracket, 602-servo motor, 603-drive block, 604-transmission shaft, 605-connecting sleeve, 606-L-type plate, 607-bevel gear ring, 608-L-type frame, 609-first bevel gear, 610-second bevel gear, 611-third bevel gear, 701-annular guide rail, 702-bidirectional screw, 703-second slider, 704-nut. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1:

[0026] See also Figure 1-2As shown, the utility model is a surface treatment equipment for magnetic ring processing, comprising a bottom plate 1, a bearing plate 2 and a top plate 3 which are horizontally arranged in sequence from bottom to top; the bottom plate 1, the bearing plate 2 and the top plate 3 are connected by a lifting assembly 4; the lifting assembly 4 is used to adjust the relative distance between the bearing plate 2 and the top plate 3; a magnetic ring clamping assembly 5 is installed on the upper surface of the bearing plate 2; a rotating drive assembly 6 is installed on the top plate 3; a pair of grinding rollers 8 corresponding to the magnetic ring clamping assembly 5 are vertically connected to the rotating drive assembly 6; an adjusting assembly 7 for adjusting the relative distance between the two grinding rollers 8 is connected to the rotating drive assembly 6; the grinding roller 8 is a conventional structure in the art, and is composed of a roller body and a plurality of grinding blocks fixed on the circumferential side wall of the roller body. When in use, the magnetic ring is placed horizontally on the magnetic ring clamping assembly 5, and the lifting assembly 4 is used to adjust the relative distance between the supporting plate 2 and the top plate 3, so that the position of the magnetic ring and the grinding roller 8 correspond to each other, and then the relative distance between the two grinding rollers 8 is adjusted by the adjusting assembly 7, so that the two grinding rollers 8 are simultaneously in conflict with the circumferential outer wall or the circumferential inner wall of the magnetic ring, and the position of the magnetic ring is also corrected, and then the magnetic ring clamping assembly 5 is used to lock the position of the magnetic ring, and finally the two grinding rollers 8 are driven to rotate synchronously by the rotating drive assembly 6, so as to realize the grinding treatment of the circumferential outer wall or the circumferential inner wall of the magnetic ring, which not only effectively improves the surface treatment efficiency of the magnetic ring, but also ensures the processing quality of the magnetic ring.

[0027] Among them Figure 3 As shown, the lifting assembly 4 includes a screw rod 401 rotatably connected to one corner of the bottom plate 1 and three guide rods 402 vertically fixed to the other three corners of the bottom plate 1; the upper end of the screw rod 401 is rotatably connected to the top plate 3; the screw rod 401 is threaded with a screw sleeve 403; the screw sleeve 403 is fixedly inserted on the bearing plate 2; the upper ends of the three guide rods 402 are all fixed on the top plate 3; the three guide rods 402 are all slidably sleeved with a sliding sleeve 404; the three sliding sleeves 404 are all fixedly inserted on the bearing plate 2. When in use, by manually rotating the screw rod 401, the screw sleeve 403 is prompted to move along the length direction of the guide rod 402 with the bearing plate 2, thereby realizing the adjustment of the relative distance between the bearing plate 2 and the top plate 3, which not only facilitates the installation of the magnetic ring on the magnetic ring clamping assembly 5 or the removal of the magnetic ring from the magnetic ring clamping assembly 5, but also effectively ensures the surface treatment efficiency of the magnetic ring.

[0028] Embodiment 2:

[0029] Based on Example 1, Figure 4As shown, the magnetic ring clamping assembly 5 includes a support seat 501 horizontally fixed to the upper surface of the base plate 1; the support seat 501 is in a "cross" shape; the upper surfaces of the four ends of the support seat 501 are provided with scale lines along the length direction; the four ends of the support seat 501 are provided with slide grooves 502 along the length direction; the slide groove 502 is slidably connected to the first slider 503; the top surface of the first slider 503 is vertically welded with a clamping piece 504; a pair of accommodating holes 505 are provided side by side on the top surface of the first slider 503; the two accommodating holes 505 are respectively arranged on opposite sides of the clamping piece 504; at least one accommodating hole 505 is internally threaded with a positioning column 506; the lower end of the positioning column 506 can be in conflict with the upper surface of the end of the support seat 501. During use, when it is necessary to grind the outer surface of the magnetic ring, the magnetic ring is placed horizontally on the top surface of the first slider 503, and the clamping piece 504 is on the inner side of the magnetic ring. Then, after the grinding roller 8 corrects the position of the magnetic ring, the four first sliders 503 are slid away from the center of the support seat 501, so that the clamping piece 504 is in contact with the circumferential inner wall of the magnetic ring. Then, the positioning column 506 is inserted into a receiving hole 505 of the clamping piece 504 close to the center of the support seat 501, and the lower end of the positioning column 506 is in tight contact with the upper surface of the end of the support seat 501, thereby locking the position of the magnetic ring. When it is necessary to grind the inner surface of the magnetic ring, the magnetic ring is placed horizontally on the top surface of the first slider 503, and the clamping piece 504 is on the outer side of the magnetic ring. After the grinding roller 8 corrects the position of the magnetic ring, the four first sliders 503 are slid toward the center of the support seat 501, causing the clamping plate 504 to come into contact with the circumferential outer wall of the magnetic ring, and then the positioning column 506 is inserted into another accommodating hole 505 at a position where the clamping plate 504 is away from the center of the support seat 501, and the lower end of the positioning column 506 is tightly in contact with the upper surface of the end of the support seat 501, thereby achieving the position locking of the magnetic ring, which can not only effectively improve the efficiency of the position locking of the magnetic ring, but also facilitate the installation and disassembly of the magnetic ring; it needs to be further explained that: by providing scale lines along the length direction on the upper surfaces of the four ends of the support seat 501, it can help workers to more intuitively adjust the positions of the four first sliders 503, thereby effectively assisting the positioning of the magnetic ring.

[0030] Embodiment three:

[0031] Based on Example 2, Figure 3 and Figure 5-7As shown, a circular receiving opening is provided on the upper surface of the top plate 3; the rotation drive assembly 6 includes a bracket 601 bolted to the upper surface of the top plate 3; the bracket 601 is in a "ㄇ"-shaped structure; a servo motor 602 is vertically bolted to the bracket 601; the output shaft of the servo motor 602 passes through the middle arm of the bracket 601 and is fixed with a driving block 603; the driving block 603 is arranged on the inner side of the circular receiving opening; a conventional transmission shaft 604 in the field is horizontally inserted in the lower part of the driving block 603; the cross section of the transmission shaft 604 perpendicular to the length direction is a regular polygonal structure; both ends of the transmission shaft 604 are A connecting sleeve 605 is provided; the two connecting sleeves 605 are respectively inserted and arranged on the vertical sections of a pair of symmetrically arranged L-shaped plates 606; the horizontal sections of the two L-shaped plates 606 are respectively rotatably connected to the upper ends of the two grinding rollers 8; the transmission shaft 604 is slidably matched with the connecting sleeve 605; the adjustment component 7 includes an annular guide rail 701 connected to the upper edge of the circular receiving opening by coaxial bolts; a bidirectional screw rod 702 parallel to the transmission shaft 604 is provided on the inner side of the annular guide rail 701; the bidirectional screw rod 702 is arranged above the transmission shaft 604; the bidirectional screw rod 702 is rotatably inserted on the upper part of the driving block 603; the bidirectional screw rod 702 is rotatably inserted on the upper part of the driving block 603; Both ends of the screw rod 702 are rotatably connected to the second slider 703; the two second sliders 703 are slidably connected to the annular guide rail 701; the two threaded sections of the bidirectional screw rod 702 are threadedly matched with screw nuts 704; the two screw nuts 704 are respectively fixed and inserted into the vertical sections of the two L-shaped plates 606; the output shaft of the servo motor 602 is coaxially arranged with the circular receiving opening; the driving block 603 is rotatably connected with the transmission shaft 604; a bevel gear ring 607 coaxially arranged with the circular receiving opening is horizontally arranged below the transmission shaft 604; the bevel gear ring 607 is arranged below the top plate 3; the bevel gear ring 607 is connected to the top plate 3 through a plurality of L-shaped frames 608 is fixed on the top plate 3; the horizontal section of the L-shaped frame 608 is bolted to the bevel gear ring 607; the vertical section of the L-shaped frame 608 is bolted to the top plate 3; the first bevel gear 609 is meshed on the bevel gear ring 607; the first bevel gear 609 is key-connected to one end of the transmission shaft 604; the transmission shaft 604 is slidably connected to the connecting sleeve 605; the connecting sleeve 605 is rotationally connected to the vertical section of the L-shaped plate 606; the outer periphery of the connecting sleeve 605 is key-connected to the second bevel gear 610; the second bevel gear 610 is meshed with the third bevel gear 611; the third bevel gear 611 is key-connected to the upper end of the grinding roller 8.During use, after the magnetic ring is placed on the top surface of the first slider 503, the two-way screw rod 702 is manually rotated to cause the two nuts 704 to drive the two grinding rollers 8 to move relative to each other through the L-shaped plate 606, causing the two grinding rollers 8 to simultaneously conflict with the circumferential outer wall or the circumferential inner wall of the magnetic ring, while also realizing the position correction of the magnetic ring. After that, after the magnetic ring clamping assembly 5 locks the position of the magnetic ring, the servo motor 602 is used to drive the driving block 603 to rotate, causing the transmission shaft 604 to drive the two grinding rollers 8 to follow the driving block 603 to perform orbital motion through the L-shaped plate 606. At the same time, due to the rolling of the first bevel gear 609 on the bevel gear ring 607, the transmission shaft 604 drives the grinding roller 8 to rotate through the connecting sleeve 605, the second bevel gear 610 and the third bevel gear 611, thereby effectively improving the grinding efficiency and effect of the grinding roller 8 on the magnetic ring.

[0032] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. Surface treatment equipment for magnetic ring processing, characterized in that: It comprises a bottom plate (1), a bearing plate (2) and a top plate (3) which are horizontally arranged in sequence from bottom to top; The bottom plate (1), the bearing plate (2) and the top plate (3) are connected via a lifting assembly (4); the lifting assembly (4) is used to adjust the relative distance between the bearing plate (2) and the top plate (3); a magnetic ring clamping assembly (5) is installed on the upper surface of the bearing plate (2); a rotating drive assembly (6) is installed on the top plate (3); a pair of grinding rollers (8) corresponding to the magnetic ring clamping assembly (5) are vertically connected to the rotating drive assembly (6); and an adjusting assembly (7) for adjusting the relative distance between the two grinding rollers (8) is connected to the rotating drive assembly (6).

2. The surface treatment equipment for magnetic ring processing according to claim 1, characterized in that: The lifting assembly (4) comprises a screw rod (401) rotatably connected to one corner of the bottom plate (1) and three guide rods (402) vertically fixed to the other three corners of the bottom plate (1); the upper end of the screw rod (401) is rotatably connected to the top plate (3); a screw sleeve (403) is threadedly matched on the screw rod (401); the screw sleeve (403) is fixedly inserted on the bearing plate (2); the upper ends of the three guide rods (402) are all fixed on the top plate (3); the three guide rods (402) are slidably provided with a sliding sleeve (404); the three sliding sleeves (404) are all fixedly inserted on the bearing plate (2).

3. The surface treatment equipment for magnetic ring processing according to claim 1 or 2, characterized in that: The magnetic ring clamping assembly (5) comprises a support seat (501) fixed horizontally on the upper surface of the base plate (1); the support seat (501) is in a "cross"-shaped structure; the four ends of the support seat (501) are provided with sliding grooves (502) along the length direction; a first slider (503) is slidably connected to the sliding groove (502); a clamping sheet (504) is vertically fixed on the top surface of the first slider (503); a pair of accommodating holes (505) are arranged side by side on the top surface of the first slider (503); the two accommodating holes (505) are respectively arranged on opposite sides of the clamping sheet (504); at least one of the accommodating holes (505) is internally threaded with a positioning column (506); the lower end of the positioning column (506) can be in contact with the upper surface of the end of the support seat (501).

4. The surface treatment equipment for magnetic ring processing according to claim 3, characterized in that: The upper surfaces of the four ends of the support seat (501) are all provided with scale lines along the length direction.

5. The surface treatment equipment for magnetic ring processing according to claim 1, characterized in that: A circular receiving opening is provided on the upper surface of the top plate (3); the rotary drive assembly (6) comprises a bracket (601) fixed on the upper surface of the top plate (3); a servo motor (602) is vertically fixed on the bracket (601); a driving block (603) is fixed to the output shaft of the servo motor (602); the driving block (603) is arranged on the inner side of the circular receiving opening; a transmission shaft (604) is horizontally inserted through the lower part of the driving block (603); both ends of the transmission shaft (604) are sleeved with connecting sleeves (605); the two connecting sleeves (605) are respectively inserted and arranged on the vertical sections of a pair of symmetrically arranged L-shaped plates (606); the horizontal sections of the two L-shaped plates (606) are respectively rotatably connected to the upper ends of the two grinding rollers (8).

6. The surface treatment equipment for magnetic ring processing according to claim 5, characterized in that: The transmission shaft (604) and the connecting sleeve (605) are slidably matched; the adjustment component (7) comprises an annular guide rail (701) coaxially fixed at the upper edge of the circular receiving opening; a bidirectional screw rod (702) parallel to the transmission shaft (604) is arranged on the inner side of the annular guide rail (701); the bidirectional screw rod (702) is rotatably inserted into the upper part of the driving block (603); both ends of the bidirectional screw rod (702) are rotatably connected to the second slider (703); the two second sliders (703) are slidably connected to the annular guide rail (701); the two threaded sections of the bidirectional screw rod (702) are threadedly matched with a nut (704); the two nuts (704) are respectively fixedly inserted into the vertical sections of the two L-shaped plates (606).

7. The surface treatment equipment for magnetic ring processing according to claim 6, characterized in that: The output shaft of the servo motor (602) is coaxially arranged with the circular receiving opening; the driving block (603) is rotatably connected with the transmission shaft (604); a bevel gear ring (607) coaxially arranged with the circular receiving opening is horizontally arranged below the transmission shaft (604); the bevel gear ring (607) is arranged below the top plate (3); the bevel gear ring (607) is fixed to the top plate (3) through a plurality of L-shaped frames (608); a first bevel gear (609) is meshed on the bevel gear ring (607) ; The first bevel gear (609) is fixedly sleeved on one end of the transmission shaft (604); the transmission shaft (604) is slidably connected to the connecting sleeve (605); the connecting sleeve (605) is rotationally connected to the vertical section of the L-shaped plate (606); the outer periphery of the connecting sleeve (605) is fixedly sleeved with a second bevel gear (610); the second bevel gear (610) is meshed with a third bevel gear (611); the third bevel gear (611) is fixedly sleeved on the upper end of the grinding roller (8).

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