A device for dressing the convex and concave arc surfaces of grinding wheels that have accumulated lumps

Abstract

This invention provides a dressing device for the concave and convex surfaces of grinding wheel clumps, comprising a dressing disc mounted on a lathe and a cutting tool mounted on the lathe. The dressing disc has a reference step at its center and a flipping mechanism for flipping the grinding wheel clumps vertically. The flipping mechanism includes a movable plate and a first motor. The movable plate is fixedly connected to a rotating rod penetrating the dressing disc, and the rotating rod is fixedly connected to a rotating handle. The movable plate has a first slot at its center, which communicates with a cavity inside the movable plate. This invention allows for dressing the other side of the grinding wheel clumps to obtain a concave surface without removing the reverse side of the grinding wheel clumps and clamping it onto the pressure plate of the dressing device. This improves the efficiency of dressing the concave and convex surfaces of the grinding wheel clumps and avoids the risk of damaging the convex surface of the grinding wheel clumps by clamping the reverse side of the grinding wheel clumps onto the pressure plate of the dressing device.

Description

Technical Field

[0001] This invention relates to the field of grinding wheel processing technology, specifically to a device for dressing the convex and concave arc surfaces of grinding wheels that have accumulated clumps. Background Technology

[0002] Grinding wheel agglomeration refers to the phenomenon of lumpy substances appearing on the surface of a grinding wheel. A grinding wheel is a commonly used abrasive tool, composed of abrasive particles and a bonding agent, used for grinding, cutting, polishing, and other machining operations on workpieces. However, due to grinding friction and heat generation during use, the abrasive and bonding agent on the grinding wheel surface may accumulate or combine into lumpy substances. In the process of dressing convex and concave surfaces, dressing devices are more refined and complex, creating an uneven cutting effect on the grinding wheel surface. By using convex and concave surface dressing devices, agglomerates and thickness variations on the grinding wheel surface can be removed, restoring flatness and improving the cutting quality and life of the grinding wheel.

[0003] Among the existing technologies is a grinding wheel agglomerate convex and concave arc surface dressing device with application publication number CN105328572B. This device sets the dressing disc on a lathe, tightens it with a fixing fixture, sets the lathe parameters, starts the three-jaw chuck of the lathe to rotate, and uses a PCD cutting tool to dress the two end faces of the grinding wheel agglomerate respectively, resulting in a convex arc surface of the grinding wheel. Then, the reverse side of the grinding wheel agglomerate is removed and clamped on the pressure plate of the dressing device. The position of the positioning seat is adjusted, and the other side of the grinding wheel agglomerate is dressed according to the set dressing parameters to obtain the concave arc surface of the grinding wheel agglomerate.

[0004] However, the following shortcomings still exist: As can be seen from the above statement, on the one hand, when dressing the two sides of the grinding wheel block, after dressing the front side of the grinding wheel to obtain the convex arc surface, the back side of the grinding wheel block must be removed and clamped onto the pressure plate of the dressing device. Then, the position of the positioning seat must be adjusted before the other side of the grinding wheel block can be dressed to obtain the concave arc surface. Therefore, the whole process is cumbersome and inefficient. On the other hand, after dressing the front side of the grinding wheel block, the back side of the grinding wheel block is installed on the positioning seat, so that the convex arc surface of the grinding wheel block contacts the positioning seat. This will cause the convex arc surface of the grinding wheel block to be damaged due to the contact between the grinding wheel block and the positioning seat. Summary of the Invention

[0005] The purpose of this invention is to provide a device for dressing the convex and concave arc surfaces of grinding wheels to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A dressing device for grinding wheel clumps with convex and concave arc surfaces includes a dressing disc mounted on a lathe and a cutting tool mounted on the lathe. The dressing disc has a reference step at its center. A flipping mechanism for flipping the grinding wheel clumps vertically is provided on the dressing disc. The flipping mechanism includes a movable plate and a first motor. The movable plate and a rotating rod penetrating the dressing disc are fixedly connected. The rotating rod and a rotating handle are fixedly connected. The movable plate has a first slot at its center, which communicates with a cavity inside the movable plate. A first support base is provided inside the cavity and below the first slot. A first limiting post for inserting into the grinding wheel clumps is fixedly connected to the bottom of the first support base. The first support base and a first turntable are fixedly connected by a first connecting rod. The first turntable is sleeved on the first... A second support is located directly below the first support on the drive shaft of the motor. The second support is fixedly connected to a second turntable via a second connecting rod. The second turntable is sleeved on the drive shaft of the second motor. A second limiting post is fixedly connected to the top of the second support. A gear is sleeved on the drive shaft of the first motor. Racks are meshed on both sides of the gear. One end of the rack is fixedly connected to a transmission rod. The end of the transmission rod away from the rack is fixedly connected to an L-shaped rod. The end of the L-shaped rod away from the transmission rod is fixedly connected to a limiting plate. A first electric push rod is provided inside the first support. When the first limiting post and the second slot provided in the grinding wheel block are inserted and connected, the first electric push rod passes through the round hole opened on the first support and pushes the grinding wheel block out of the first slot.

[0008] Preferably, a pin is provided below the movable plate to restrict the rotation of the movable plate. The pin passes through the slot opened in the trimming plate and is fixedly connected to the movable handle. A third limiting post is provided on the pin. When the pin is fully extended out of the trimming plate and engaged with the movable plate, the third limiting post abuts against the outer wall of the trimming plate.

[0009] Preferably, the inner wall of the limiting plate is provided with an elastic gasket.

[0010] Preferably, the movable plate is provided with a limiting mechanism for fixing the grinding wheel agglomerates on both sides of the first slot.

[0011] Preferably, the limiting mechanism includes a limiting wedge block and a spring. One end of the limiting wedge block is elastically connected to the spring, and the end of the spring away from the limiting wedge block is elastically connected to a fixed post. A first slider is fixedly connected to the bottom of the fixed post. The first slider is slidably connected to a groove opened on the movable plate. One side of the first slider is fixedly connected to the drive rod of the second electric push rod.

[0012] Preferably, the cavity is provided with a support mechanism for supporting the grinding wheel agglomerates.

[0013] Preferably, the support mechanism includes a slide rod and a support plate. The slide rod is disposed on the inner wall of the movable plate. A second slider is slidably connected to the slide rod. A third electric push rod is fixedly connected to one side of the second slider. One side of the third electric push rod is fixedly connected to the support plate via a connecting rod. A fourth electric push rod is fixedly connected to the other side of the second slider. The end of the fourth electric push rod away from the second slider is fixed to the inner wall of the movable plate.

[0014] Preferably, elastic pads are provided on both the front and back sides of the support plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention uses a movable plate and a rotating rod for fixed connection, and the rotating rod and a rotating handle for fixed connection. When the rotating handle is rotated clockwise, the movable plate can be flipped. A first slot is provided in the center of the movable plate, and the first slot communicates with a cavity opened inside the movable plate. A first support seat is provided in the cavity and below the first slot. The first support seat and a first limiting post are fixedly connected. The first support seat and the first turntable are fixedly connected through a first connecting rod. The first turntable is sleeved on the drive shaft of the first motor. A second support seat is provided directly below the first support seat. The second support seat is fixedly connected to the second turntable through a second connecting rod. The second turntable is sleeved on the drive shaft of the second motor. The second support seat and the second limiting post are fixedly connected. A gear is sleeved on the drive shaft of the first motor. Both sides of the gear are meshed with racks. One end of the rack is fixedly connected to a transmission rod. The end of the transmission rod away from the rack is fixedly connected to an L-shaped rod. The end of the L-shaped rod away from the transmission rod is fixedly connected to a limiting plate. Therefore, it is not necessary to remove the reverse side of the grinding wheel block and clamp it onto the pressure plate of the dressing device to dress the other side of the grinding wheel block, thereby obtaining the concave arc surface of the grinding wheel. This improves the efficiency of dressing the convex and concave arc surfaces of the entire grinding wheel block and avoids the risk of damaging the convex arc surface of the grinding wheel block by clamping the reverse side of the grinding wheel block onto the pressure plate of the dressing device. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the grinding wheel agglomerate structure of the present invention, with the front side facing upwards;

[0017] Figure 2 This is a cross-sectional view of the engagement structure between the second support base and the grinding wheel block of the present invention;

[0018] Figure 3 This is a schematic diagram showing the state of the grinding wheel agglomerates after they have been flipped over.

[0019] Figure 4 This is a schematic diagram of the structure of the grinding wheel with the reverse side of the agglomerate facing upwards.

[0020] Figure 5 This is one of the enlarged structural views of the flipping mechanism of the present invention;

[0021] Figure 6 This is the second enlarged view of the structure of the flipping mechanism of the present invention;

[0022] Figure 7 This is an enlarged view of the structure of the grinding wheel agglomeration with the reverse side facing up.

[0023] In the diagram: 1. Trimming disc, 2. Cutting tool, 3. Reference step, 4. Grinding wheel blockage, 5. Movable plate, 6. First motor, 7. Rotating rod, 8. First slot, 9. First support seat, 10. First limiting post, 11. First turntable, 12. First connecting rod, 13. Second support seat, 14. Second connecting rod, 15. Second turntable, 16. Second motor, 17. Second limiting post, 18. Gear, 19. Rack, 20. Transmission rod, 21. L-shaped rod, 22. Limiting plate, 23. First electric push rod, 24. Second slot, 25. Pin, 26. Moving handle, 27. Third limiting post, 28. Limiting wedge block, 29. Spring, 30. Fixing post, 31. First slider, 32. Second electric push rod, 33. Slide rod, 34. Support plate, 35. Second slider, 36. Third electric push rod, 37. Fourth electric push rod. Detailed Implementation

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0025] Please see Figures 1 to 7 The present invention provides a technical solution:

[0026] A device for dressing the convex and concave arc surfaces of grinding wheels, such as Figure 1 As shown, it includes a dressing disc 1 mounted on a lathe and a cutting tool 2 mounted on the lathe. A reference step 3 is provided at the center of the dressing disc 1. The dressing disc 1 is equipped with a flipping mechanism for flipping the grinding wheel agglomerates 4 vertically. Figure 5 and Figure 6As shown, the flipping mechanism includes a movable plate 5 and a first motor 6. The movable plate 5 and a rotating rod 7 that penetrates the trimming disc 1 are fixedly connected. The rotating rod 7 and a rotating handle are fixedly connected. A first slot 8 is provided in the center of the movable plate 5. The first slot 8 communicates with a cavity opened inside the movable plate 5. A first support 9 is provided in the cavity and below the first slot 8. A first limiting post 10 for insertion into the grinding wheel block 4 is fixedly connected to the bottom of the first support 9. The first support 9 and the first turntable 11 are fixedly connected by a first connecting rod 12. The first turntable 11 is sleeved on the drive shaft of the first motor 6. A second support 13 is provided directly below the first support 9. A second turntable 15 is fixedly connected to the second support 13 by a second connecting rod 14. The disc 15 is mounted on the drive shaft of the second motor 16. The top of the second support 13 is fixedly connected to the second limiting post 17. The drive shaft of the first motor 6 is fitted with a gear 18. Both sides of the gear 18 are meshed with racks 19. One end of the rack 19 is fixedly connected to the transmission rod 20. The end of the transmission rod 20 away from the rack 18 is fixedly connected to the L-shaped rod 21. The end of the L-shaped rod 21 away from the transmission rod 20 is fixedly connected to the limiting plate 22. The inner wall of the limiting plate 22 is provided with an elastic gasket. The first support 9 is provided with a first electric push rod 23. When the first limiting post 10 and the second slot 24 provided in the grinding wheel block 4 are inserted and connected, the first electric push rod 23 passes through the round hole opened on the first support 9 and pushes the grinding wheel block 4 out of the first slot 8.

[0027] Based on the above embodiments, such as Figure 1 and Figure 2 As shown, a pin 25 is provided below the movable plate 5 to restrict the rotation of the movable plate 5. The pin 25 passes through the slot opened in the trimming plate 1 and is fixedly connected to the moving handle 26. A third limiting post 27 is provided on the pin 25. When the pin 25 is fully extended and engaged with the trimming plate 1 and the movable plate 5, the third limiting post 27 abuts against the outer wall of the trimming plate 1.

[0028] Based on the above embodiments, such as Figure 5 and Figure 6 As shown, a limiting mechanism for fixing the grinding wheel block 4 is provided on both sides of the movable plate 5 and the first slot 8. The limiting mechanism includes a limiting wedge block 28 and a spring 29. One end of the limiting wedge block 28 is elastically connected to the spring 29, and the end of the spring 29 away from the limiting wedge block 28 is elastically connected to the fixing post 30. The bottom of the fixing post 30 is fixedly connected to a first slider 31. The first slider 31 is slidably connected to a groove opened on the movable plate 5. One side of the first slider 31 is fixedly connected to the drive rod of the second electric push rod 32. After the grinding wheel block 4 is flipped over, when the grinding wheel block 4 moves back to the initial position under the push of the first electric push rod 23, the wedge block 28 and the spring 29 can fix the grinding wheel block 4.

[0029] Based on the above embodiments, such as Figure 5 and Figure 6 As shown, a support mechanism for supporting the grinding wheel agglomerates 4 is provided inside the cavity. The support mechanism includes a slide rod 33 and a support plate 34. The slide rod 33 is set on the inner wall of the movable plate 5. A second slider 35 is slidably connected to the slide rod 33. A third electric push rod 36 is fixedly connected to one side of the second slider 35. One side of the third electric push rod 36 is fixedly connected to the support plate 34 through a connecting rod. Elastic pads are provided on both the front and back sides of the support plate 34. A fourth electric push rod 37 is fixedly connected to the other side of the second slider 35. The end of the fourth electric push rod 37 away from the second slider 35 is fixed to the movable plate. On the inner wall of 5, after the first support seat 9 rotates, the grinding wheel block 4 is supported by the support plate 34. When the grinding wheel block 4 moves down, the second slider 35 slides down the slide rod 33. The support plate 34 is driven to move down by the shortening of the third electric push rod 37. During the downward movement of the support plate 34, the grinding wheel block 4 moves down with the support plate 34 until the grinding wheel block 4 and the second support seat 13 are engaged. Before the front and back of the grinding wheel block 4 are flipped, the support plate 34 supports the grinding wheel block 4 to ensure that after the grinding wheel block 4 is flipped, the first limiting post 10 can be engaged with the grinding wheel block 4.

[0030] In this embodiment, the first motor 6, the second motor 16, the first electric actuator 23, the second electric actuator 32, the third electric actuator 36, and the fourth electric actuator 37 are all electrically connected to the control unit. The control unit uses an 80C51 microcontroller. Both the first motor 6 and the second motor 16 are ML-2020 motors manufactured by Shenzhen Manchester United Co., Ltd. The first motor 6 and the second motor 16 mainly consist of a motor, leads, connectors, bearings, and a housing. The leads and connectors of the first motor 6 are connected to the GPIO pins of the microcontroller, enabling the transmission of control signals from the microcontroller to the first motor 6. Process: When the first support 9 needs to rotate, the controller sends a data signal to the microcontroller. The microcontroller controls the first motor 6 to start, driving the first support 9 to rotate, so that the first support 9 rotates to a position directly below the grinding wheel block 4 or from directly below the grinding wheel block 4 to a position away from the grinding wheel block 4. The leads and connectors of the second motor 16 are connected to the GPIO pins of the microcontroller, realizing the function of transmitting the control signal of the microcontroller to the second motor 16. Specifically: When the second support 13 needs to rotate, the controller sends a data signal to the microcontroller. The microcontroller controls the second motor 16 to start, driving the second support 13 from directly below the grinding wheel block 4 to a position away from the grinding wheel block 4. The position directly below block 4 is rotated to a position offset from the grinding wheel block 4 or directly below the grinding wheel block 4; the first electric push rod 23, the second electric push rod 32, the third electric push rod 36, and the fourth electric push rod 37 all adopt YH series electric push rods produced by Dalian Wanhua Hydraulic Equipment Co., Ltd. The first electric push rod 23 is composed of a cylinder, piston, seals, and piston rod. The control port of the first electric push rod 23 is connected to the GPIO pin of the microcontroller to realize the function of transmitting the control signal of the microcontroller to the first electric push rod 23. The specific process is as follows: when the first limit post 10 and the second slot 24 set in the grinding wheel block 4 are inserted and connected, the control... The controller sends a data signal to the microcontroller, which then controls the first electric push rod 23 to open, driving the grinding wheel block 4 to move out of the first slot 8. The second electric push rod 32 consists of a cylinder, piston, seal, and piston rod. The control port of the second electric push rod 32 is connected to the GPIO pin of the microcontroller, enabling the transmission of the microcontroller's control signal to the second electric push rod 32. Specifically, when the grinding wheel block 4 needs to be fixed or unfixed, the controller sends a data signal to the microcontroller, which then controls the second electric push rod 32 to open, driving the wedge block 28 to move to the right or left to fix or unfix the grinding wheel block 4.The third electric actuator 36 consists of a cylinder, piston, seal, and piston rod. The control port of the third electric actuator 36 is connected to the GPIO pin of the microcontroller, enabling the transmission of control signals from the microcontroller to the third electric actuator 36. Specifically, when the support plate 34 needs to move left or right, the controller sends a data signal to the microcontroller, which then controls the third electric actuator 36 to open, driving the support plate 34 to move left or right to support or release the grinding wheel agglomerate 4. The fourth electric actuator 37 consists of a cylinder, piston, seal, and piston rod. The control port of the fourth electric actuator 37 is connected to the GPIO pin of the microcontroller, enabling the transmission of control signals from the microcontroller to the fourth electric actuator 37. Specifically, when the support plate 34 needs to move up and down, the controller sends a data signal to the microcontroller, which then controls the fourth electric actuator 37 to open, driving it to extend or retract to support the grinding wheel agglomerate 4.

[0031] In this embodiment, the movable plate 5 and the rotating rod 7 are fixedly connected, and the rotating rod 7 is fixedly connected to the rotating handle. When the rotating handle is rotated 180 degrees clockwise, the movable plate 5 can be flipped. A first slot 8 is provided in the center of the movable plate 5, and the first slot 8 communicates with the cavity opened inside the movable plate 5. A first support seat 9 is provided in the cavity and below the first slot 8. The first support seat 9 and the first limiting post 10 are fixedly connected. The first support seat 9 and the first turntable 11 are fixedly connected through the first connecting rod 12. The first turntable 11 is sleeved on the drive shaft of the first motor 6. Therefore, when the convex arc surface of the grinding wheel block 4 is trimmed on the front, the first support seat 9 supports the grinding wheel block 4. A second support seat 13 is provided directly below the first support seat 9. The second support seat 13 is fixedly connected to the second turntable 15 through the second connecting rod 14. The second turntable 15 is sleeved on the drive shaft of the first motor 6. The second support base 13 and the second limiting post 17 are fixedly connected on the drive shaft of the second motor 16. When the front dressing of the grinding wheel block 4 is finished, the first support base 9 no longer supports the grinding wheel block 4 under the drive of the first turntable 11. The rotation of the second turntable 15 drives the second support base 13 to rotate directly below the grinding wheel block 4 to continue supporting the grinding wheel block 4. A gear 18 is sleeved on the drive shaft of the first motor 6. Both sides of the gear 18 are meshed with racks 19. One end of the rack 19 is fixedly connected to the transmission rod 20. The end of the transmission rod 20 away from the rack 18 is fixedly connected to the L-shaped rod 21. The end of the L-shaped rod 21 away from the transmission rod 20 is fixedly connected to the limiting plate 22. The rotation of the first motor 6 can drive the gear 18 to rotate. The meshing of the gear 18 and the rack 19 can drive the limiting plate 22 to move and fix the grinding wheel block 4. Therefore, it is not necessary to remove the reverse side of the grinding wheel block and clamp it onto the pressure plate of the dressing device to dress the other side of the grinding wheel block, thereby obtaining the concave arc surface of the grinding wheel. This improves the efficiency of dressing the convex and concave arc surfaces of the entire grinding wheel block and avoids the risk of damaging the convex arc surface of the grinding wheel block by clamping the reverse side of the grinding wheel block onto the pressure plate of the dressing device.

[0032] The working principle of this grinding wheel agglomeration and concave arc surface dressing device is as follows:

[0033] During dressing, the grinding wheel block 4 is first placed face up in the first slot 8. At this time, the first support seat 9 is located directly below the grinding wheel block 4. The first support seat 9 can support the grinding wheel block 4, and the limiting plate 22 and the wedge block 28 can fix the grinding wheel block 4, ensuring that the grinding wheel block 4 remains fixed when the tool 2 dresses the convex arc surface of the grinding wheel block 4. After the convex arc surface of the grinding wheel block 4 is dressed, the controller controls the second electric push rod 36 to extend, moving the support plate 34 to the bottom of the grinding wheel block 4 to support the grinding wheel block 4. Then, the controller controls the first motor 6 to start. The first turntable 11 is driven to rotate clockwise. The rotation of the first turntable 11 drives the first support seat 9 to rotate until the first support seat 9 is no longer below the grinding wheel block 4. At the same time, when the first motor 6 rotates, it can drive the gear 18 to rotate. As the gear 18 rotates, it drives the racks 19 on both sides to move in the opposite direction. The movement of the racks 19 simultaneously drives the L-shaped rods 21 on both sides, and the limiting plate 22 connected to the L-shaped rods 21 moves in the opposite direction. The controller controls the second electric push rod 32 to shorten. The shortening of the second electric push rod 32 drives the wedge block 28 to move to the left, releasing the fixation of the grinding wheel block 4. Then the controller 38 controls the second electric push rod 32 to shorten. The fourth electric push rod 37 is shortened, which drives the second slider 35 and the support plate 34 to move downwards. Under the action of gravity, the grinding wheel block 4 moves downwards and finally falls onto the second support seat 13. When the second limit post 17 and the grinding wheel block 4 are fully engaged, the controller controls the third electric push rod 36 to shorten. At the same time as the third electric push rod 36 shortens, it drives the support plate 34 to move to the left. Then, the controller 38 controls the fourth electric push rod 37 to extend. The extension of the fourth electric push rod 37 drives the support plate 34 to move upwards. Then, the controller controls the third electric push rod 36 to extend, moving the support plate 34 to the grinding wheel block 4. Above, the grinding wheel block 4 is fixed. Then, the moving handle 26 is driven to move to the left, and then the pin 25 is driven to move to the left until the pin 25 is completely separated from the movable plate 5, releasing the fixation of the movable plate 5. Then, the controller controls the rotating handle to rotate 180 degrees, flipping the upper and lower surfaces of the movable plate 5. After the upper and lower surfaces of the movable plate 5 are flipped, the controller controls the third electric push rod 36 to shorten, moving the support plate 34 to the left. Then, the grinding wheel block 4 falls back onto the first support seat 9. Finally, the controller controls the first electric push rod 23 to extend the grinding wheel block 4 and move it out of the first slot 8. The tool 2 is used to trim the reverse side of the grinding wheel block 4 into a concave arc surface.

[0034] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A dressing device for grinding wheel agglomeration and convex / concave arc surface, comprising a dressing disc mounted on a lathe and a cutting tool mounted on the lathe, wherein a reference step is provided at the center of the dressing disc, characterized in that, The dressing disc is equipped with a flipping mechanism for flipping the grinding wheel agglomerates up and down. The flipping mechanism includes a movable plate and a first motor. The movable plate is fixedly connected to a rotating rod that passes through the dressing disc. The rotating rod is fixedly connected to a rotating handle. The movable plate has a first slot at its center, which communicates with a cavity inside the movable plate. A first support base is provided in the cavity and below the first slot. A first limiting post for inserting into the grinding wheel agglomerates is fixedly connected to the bottom of the first support base. The first support base and the first turntable are fixedly connected by a first connecting rod. The first turntable is sleeved on the drive shaft of the first motor. A second support base is provided directly below the first support base. A second turntable is fixedly connected to the second support base by a second connecting rod. The second turntable is sleeved on the drive shaft of the second motor. A second limiting post is fixedly connected to the top of the second support base. A gear is fitted on the drive shaft of the first motor, and racks are meshed on both sides of the gear. One end of the rack is fixedly connected to a transmission rod, and the end of the transmission rod away from the rack is fixedly connected to an L-shaped rod. The end of the L-shaped rod away from the transmission rod is fixedly connected to a limiting plate. A first electric push rod is provided in the first support base. When the first limiting post and the second slot provided in the grinding wheel block are inserted and connected, the first electric push rod passes through the round hole opened on the first support base and pushes the grinding wheel block out of the first slot. The cavity is provided with a support mechanism for supporting the grinding wheel agglomerates; The support mechanism includes a slide rod and a support plate. The slide rod is disposed on the inner wall of the movable plate. A second slider is slidably connected to the slide rod. A third electric push rod is fixedly connected to one side of the second slider. One side of the third electric push rod is fixedly connected to the support plate through a connecting rod. A fourth electric push rod is fixedly connected to the other side of the second slider. The end of the fourth electric push rod away from the second slider is fixed to the inner wall of the movable plate.

2. The grinding wheel agglomeration convex and concave arc surface dressing device according to claim 1, characterized in that, A pin is provided below the movable plate to restrict the rotation of the movable plate. The pin passes through the slot opened in the trimming plate and is fixedly connected to the movable handle. A third limiting post is provided on the pin. When the pin is fully extended out of the trimming plate and engaged with the movable plate, the third limiting post abuts against the outer wall of the trimming plate.

3. The grinding wheel agglomeration convex and concave arc surface dressing device according to claim 1, characterized in that, The inner wall of the limiting plate is provided with an elastic gasket.

4. The grinding wheel agglomeration convex and concave arc surface dressing device according to claim 1, characterized in that, The movable plate is provided with a limiting mechanism for fixing the grinding wheel agglomerates on both sides of the first slot.

5. The grinding wheel agglomeration convex and concave arc surface dressing device according to claim 4, characterized in that, The limiting mechanism includes a limiting wedge block and a spring. One end of the limiting wedge block is elastically connected to the spring, and the end of the spring away from the limiting wedge block is elastically connected to a fixed pile. A first slider is fixedly connected to the bottom of the limiting wedge block. The first slider is slidably connected to a groove opened on the movable plate. One side of the first slider is fixedly connected to the drive rod of the first electric push rod.

6. The grinding wheel agglomeration convex and concave arc surface dressing device according to claim 1, characterized in that, The support plate is provided with elastic pads on both the front and back sides.

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