A resin grinding wheel dressing device and its dressing method

Abstract

The present invention relates to the field of resin grinding wheels, and discloses a resin grinding wheel dressing device and a dressing method thereof, effectively solving the problem that the length of the current second dressing tool may not be compatible with the diameter of the resin grinding wheel, affecting the dressing efficiency. It includes a base, a resin grinding wheel is provided at the top of the base, a centering and fixing assembly is installed between the base and the resin grinding wheel, a dressing tool installation assembly is provided on one side of the resin grinding wheel, and a driving rotation assembly is provided on the other side of the resin grinding wheel. A circular hole is opened in the middle of the resin grinding wheel. In the present invention, by sleeving the resin grinding wheel on the outside of the fixed shaft and opening the first cylinder to push the top block to move along the fixed shaft, since the outer wall of the top block contacts the inclined outer wall of the pressure block on the pressing plate, under the action of pressure during movement, the two pressing plates are pushed away from each other, so that the two pressing plates contact the inner wall of the resin grinding wheel, thus facilitating the centering and fixing of the resin grinding wheel.

Description

Technical Field

[0001] The invention belongs to the field of resin grinding wheels, and in particular relates to a resin grinding wheel dressing device and a dressing method thereof. Background Art

[0002] Resin grinding wheels are grinding wheels made of resin, which are usually used on abrasive cutting equipment. Resin grinding wheels are prone to agglomeration after being used for a certain period of time and need to be trimmed.

[0003] According to the patent document with the invention name of “A Kind of Agglomeration Dressing Device for Resin Grinding Wheel Processing” with the authorization announcement number of “CN214560054U”, the description states: the device is placed in a suitable position, and then the strong magnetic block is controlled to be magnetically attracted, and then the two groups of strong magnetic blocks are pushed to move in the same direction, and then magnetically attracted to the protective cover, and then the resin grinding wheel is controlled to rotate, and then the motor is controlled to start. The start of the motor drives the two groups of moving blocks to move in the same direction through the bidirectional screw rod, and then drives the first dressing knife to move in the same direction, and then both sides of the resin grinding wheel are dressed, and then the free end of the hydraulic rod is controlled to move upward, and then the rectangular rod and the fixed plate are driven to move upward, and then the second dressing knife is driven to move upward, and then the end face of the resin grinding wheel is dressed. However, the following defects still exist:

[0004] Due to the different models of resin grinding wheels, the length of the second dressing knife may not match the diameter of the resin grinding wheel, making it difficult to fully dress the end face of the resin grinding wheel, resulting in poor dressing effect. Summary of the Invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a resin grinding wheel dressing device and a dressing method thereof, which effectively solves the problem that the length of the second dressing knife may not match the diameter of the resin grinding wheel, affecting the dressing efficiency.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a resin grinding wheel dressing device, comprising a base, a resin grinding wheel is provided on the top of the base, a centering and fixing assembly is installed between the base and the resin grinding wheel, a dressing knife mounting assembly is provided on one side of the resin grinding wheel, and a driving and rotating assembly is provided on the other side of the resin grinding wheel, wherein a circular hole is opened in the middle of the resin grinding wheel.

[0007] The centering and fixing component includes a first fixing platform installed at the top of the base. The first fixing platform is located on the back of the resin grinding wheel. A fixing shaft is installed on one side of the first fixing platform close to the resin grinding wheel. The fixing shaft is inserted into the circular hole inside the resin grinding wheel. Pressing plates are symmetrically arranged on both sides of the fixing shaft. Fixing cylinders are symmetrically installed on one side of the pressing plates close to the fixing shaft. Fixing blocks are movably installed inside the fixing cylinders. A side rod is installed on one side of the fixing block close to the fixing shaft. The side rod penetrates to one side of the fixing cylinder close to the fixing shaft. One end of the side rod is fixedly connected to the fixing shaft. The diameter of the side rod is smaller than that of the fixing block. First springs are symmetrically installed on both sides of the fixing shaft. One ends of the two first springs away from each other are respectively fixedly connected to the two pressing plates.

[0008] Preferably, pressure-receiving blocks are installed on one side of the two pressing plates close to each other. The pressure-receiving blocks are arranged on one side of the pressing plates close to the first fixing platform. The pressure-receiving blocks are triangular in shape. A moving block is arranged on the fixing shaft. The moving block is located on one side of the pressing plate close to the first fixing platform. A top block is installed on one side of the moving block away from the first fixing platform. The top block is frustum-shaped. The outer wall of the top block contacts the inclined outer wall of the pressure-receiving block. An inner groove is opened inside the moving block. The inner groove penetrates to one side of the top block away from the moving block. The outer wall of the fixing shaft contacts the inner wall of the inner groove.

[0009] Preferably, a pushing plate is installed on the top of the moving block. One side of the pushing plate close to the first fixing platform is fixedly connected to the output end of the first air cylinder. The first air cylinder is fixedly installed on the first fixing platform.

[0010] Preferably, the dressing tool installation component includes a support seat arranged above the base. A slider is installed at the bottom end of the support seat. The slider is slidably installed inside a chute. The chute is opened at the top of the base. A support rod is installed at the top end of the support seat. A connecting seat is installed at the top end of the support rod. A first pressing unit is installed on the connecting seat. A screw rod is rotatably installed at the end of the chute. The screw rod is threadedly connected to the slider. One end of the screw rod is fixedly connected to the output shaft of the first motor. The first motor is fixedly installed on one side of the base.

[0011] Preferably, the first pressing unit includes a connecting plate installed on one side of the connecting seat close to the resin grinding wheel. The connecting plate is on the same horizontal plane as the pressing plate. First dressing tools are symmetrically arranged on one side of the connecting plate close to the resin grinding wheel. The two first dressing tools are symmetrically arranged on the front and back of the resin grinding wheel. An end block is installed at one end of the first dressing tool close to the connecting plate. A first rotating seat is installed on one side of the end block close to the connecting plate. A rotating rod is rotatably installed on the first rotating seat. One end of the rotating rod is rotatably installed with a second rotating seat. The second rotating seats on the two rotating rods are symmetrically installed on the connecting plate.

[0012] Preferably, a sliding block is installed at one end of the first trimming tool away from the connecting plate. Sliding grooves are symmetrically formed on the pressing plate on the side close to the connecting plate. The sliding grooves are symmetrically formed on the side of the pressing plate close to the connecting plate. Two sliding blocks are respectively slidably arranged inside the two sliding grooves. Sliding wheels are equidistantly installed on the side of the sliding block away from the first trimming tool. A second pressing unit is installed outside the two first trimming tools.

[0013] Preferably, the second pressing unit includes two second trimming tools. The two second trimming tools are symmetrically arranged on the upper and lower sides of the first trimming tool. The upper surface and the lower surface of the first trimming tool are respectively in contact with the sides of the two second trimming tools close to each other. A middle partition plate is installed between the two second trimming tools. The middle partition plate is located between the two first trimming tools. Side plates are symmetrically arranged at both ends of the second trimming tool. Connecting blocks are symmetrically installed on the side of the side plate close to the second trimming tool. The two connecting blocks are respectively fixedly connected to the two second trimming tools.

[0014] Preferably, side plates are symmetrically installed on the sides of the two side plates away from each other. An activity rod is installed on the side of the side plate close to the connecting plate. The activity rod is movably installed inside the connecting cylinder. The connecting cylinders are symmetrically installed on the side of the connecting plate close to the resin grinding wheel. A second spring is installed on the side of the activity rod close to the connecting plate. One end of the second spring is fixedly connected to the inner wall of the connecting cylinder. A magnetic block is installed on the side plate. An electromagnet is arranged on the side of the magnetic block close to the connecting plate. The electromagnet is fixedly installed on the connecting plate. The electromagnet is externally connected to a power supply. The electromagnet is adapted to the magnetic block.

[0015] Preferably, the driving and rotating assembly includes a second fixed seat arranged on the side of the resin grinding wheel away from the connecting plate. The second fixed seat is fixedly installed at the top of the base. Guide grooves are evenly formed on the second fixed seat. Three guide grooves are formed. The three guide grooves are longitudinally equidistantly arranged. A guide block is slidably installed inside the guide groove. Limit plates are symmetrically installed on both sides of the guide block. The sides of the two limit plates close to each other are respectively in contact with the front and back of the second fixed seat. A second motor is installed on the limit plate on the side of the second fixed seat at the back. The output shaft of the second motor is rotationally connected to the guide block. A friction roller is installed on the output shaft of the second motor. The friction roller is located on the front of the second fixed seat. The middle friction roller is on the same horizontal plane as the pressing plate. The side of the guide block away from the resin grinding wheel is fixedly connected to the output end of the second cylinder. The second cylinder is fixedly installed on the second fixed seat.

[0016] A method for trimming a resin grinding wheel, the steps of the trimming method are as follows:

[0017] S1. Sleeve the resin grinding wheel on the outside of the fixed shaft, start the first cylinder, drive the top block to move along the fixed shaft, generate pressure on the pressure-receiving block on the pressing plate, push the two pressing plates away from each other and press tightly against the inner wall of the resin grinding wheel to perform centering and fixing on the resin grinding wheel;

[0018] S2. Start the first motor to move the connecting plate towards the resin grinding wheel, causing the two first dressing tools to move to the front and back of the resin grinding wheel respectively, and the sliding blocks on the first dressing tools are inserted into the sliding grooves on the pressing plates. After the connecting plate continues to move, it drives the two first dressing tools to approach each other and closely adhere to the front and back of the resin grinding wheel respectively;

[0019] S3. During the movement of the connecting plate, it drives the second dressing tool towards the outer edge of the resin grinding wheel. The electromagnet is powered on to generate a repulsive force on the magnetic block. Under the action of the repulsive force, the second dressing tool is pressed against the outer edge of the resin grinding wheel;

[0020] S4. Start each second cylinder to push each friction roller towards the resin grinding wheel and contact the outer edge of the resin grinding wheel. Start the second motor to make each friction roller rotate in the same direction. Under the action of friction, it drives the resin grinding wheel to rotate, so that the first dressing tool and the second dressing tool scrape and dress the surface of the resin grinding wheel.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. In the present invention, the resin grinding wheel is sleeved on the outside of the fixed shaft. The first cylinder is started to push the top block to move along the fixed shaft. Since the outer wall of the top block contacts the inclined outer wall of the pressure block on the pressing plate, when moving, under the action of pressure, it pushes the two pressing plates away from each other, making the two pressing plates contact the inner wall of the resin grinding wheel, thus facilitating the centering and fixing of the resin grinding wheel, facilitating the installation of the dressing tool, facilitating the dressing of the resin grinding wheel, and at the same time facilitating the installation of resin grinding wheels of different models and facilitating the dressing of resin grinding wheels of different models.

[0023] 2. In this invention, by starting the first motor, the two first dressing tools are moved to the front and back of the resin grinding wheel, and the sliding blocks are inserted into the sliding grooves on the pressing plates. When the connecting plate continues to move, the rotating rod rotates to drive the two first dressing tools to approach each other, making the two first dressing tools closely adhere to the front and back of the resin grinding wheel respectively, facilitating the scraping and dressing of the surface of the resin grinding wheel when the resin grinding wheel rotates, and facilitating the contact with the surfaces of resin grinding wheels of different models, facilitating the dressing of resin grinding wheels of different models.

[0024] 3. After the two first dressing tools respectively contact the front and back of the resin grinding wheel, the movement of the connecting plate drives the second dressing tool towards the resin grinding wheel. At the same time, the electromagnet is started to generate a repulsive force on the magnetic block. Under the action of the repulsive force, the second dressing tool closely adheres to the outer edge part of the resin grinding wheel, facilitating the scraping and dressing of the outer edge of the resin grinding wheel when the resin grinding wheel rotates, and facilitating the contact with the outer edges of resin grinding wheels of different models, facilitating the dressing of resin grinding wheels of different models.

[0025] 4. The invention enables each second cylinder to be opened, pushing each friction roller towards the resin grinding wheel, so that each friction roller contacts the outer edge of the resin grinding wheel. Each second motor is turned on, making each friction roller rotate in the same direction. Under the action of friction, the resin grinding wheel is driven to rotate. Thus, under the action of the first dressing tool and the second dressing tool, the surface of the resin grinding wheel is scraped and dressed, facilitating a comprehensive dressing of the surface of the resin grinding wheel, eliminating the need for turning over during processing, improving processing efficiency, and with different moving distances of the guiding blocks, facilitating the contact between the friction rollers and the outer edges of resin grinding wheels of different types, thereby facilitating the driving of resin grinding wheels of different models to rotate, and further facilitating the dressing of resin grinding wheels of different models. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings are used to provide a further understanding of the present invention and form a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0027] In the drawings:

[0028] Figure 1 is a schematic structural view of the resin grinding wheel dressing device of the present invention.

[0029] Figure 2 is a schematic structural view of the top end of the base of the present invention.

[0030] Figure 3 is a schematic structural view of the centering and fixing component of the present invention.

[0031] Figure 4 is a schematic structural view of the dressing tool mounting component of the present invention.

[0032] Figure 5 is a schematic structural view of the first pressing unit of the present invention.

[0033] Figure 6 is a schematic structural view of the second pressing unit of the present invention.

[0034] Figure 7 is a schematic structural view of the driving and rotating component of the present invention.

[0035] In the figure: 1, base; 2, resin grinding wheel; 3, centering and fixing component; 301, first fixing table; 302, fixing shaft; 303, side rod; 304, fixing block; 305, pressing plate; 306, fixing cylinder; 307, first spring; 308, pressure-receiving block; 309, moving block; 310, top block; 311, inner groove; 312, push plate; 313, first cylinder; 4, dressing tool mounting component; 401, support seat; 402, slider; 403, chute; 404, first motor; 405, support rod; 406, connecting seat; 407, screw; 408, first pressing unit; 4081, sliding groove; 4082, connecting plate; 4083, first dressing tool; 4084, sliding block; 4085, sliding wheel; 4086, end block; 4087, first rotating seat; 4088, rotating rod; 4089, second rotating seat; 409, second pressing unit; 4091, second dressing tool; 4092, middle partition board; 4093, connecting block; 4094, side plate; 4095, side board; 4096, movable rod; 4097, connecting cylinder; 4098, second spring; 4099, magnetic block; 40910, electromagnet; 5, driving and rotating component; 501, second fixing seat; 502, guiding groove; 503, guiding block; 504, limiting plate; 505, second motor; 506, friction roller; 507, second cylinder. Detailed implementation mode

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] Embodiment 1

[0038] Please refer to Figures 1-7 , the present invention includes a base 1, a resin grinding wheel 2 is provided at the top of the base 1, a centering and fixing component 3 is installed between the base 1 and the resin grinding wheel 2, a dressing tool mounting component 4 is provided on one side of the resin grinding wheel 2, a driving and rotating component 5 is provided on the other side of the resin grinding wheel 2, and the device includes a controller to achieve centralized control of electrical components, and a circular hole is provided in the middle of the resin grinding wheel 2.

[0039] The centering and fixing component 3 includes a first fixing platform 301 installed at the top end of the base 1. The first fixing platform 301 is located on the back side of the resin grinding wheel 2. A fixing shaft 302 is installed on the side of the first fixing platform 301 close to the resin grinding wheel 2. The fixing shaft 302 is inserted into the circular hole inside the resin grinding wheel 2. Pressing plates 305 are symmetrically arranged on both sides of the fixing shaft 302. Fixing cylinders 306 are symmetrically installed on the sides of the pressing plates 305 close to the fixing shaft 302. Fixing blocks 304 are movably installed inside the fixing cylinders 306. A side rod 303 is installed on the side of the fixing block 304 close to the fixing shaft 302. The side rod 303 penetrates to the side of the fixing cylinder 306 close to the fixing shaft 302. One end of the side rod 303 is fixedly connected to the fixing shaft 302. The diameter of the side rod 303 is smaller than the diameter of the fixing block 304. First springs 307 are symmetrically installed on both sides of the fixing shaft 302. The mutually remote ends of the two first springs 307 are respectively fixedly connected to the two pressing plates 305. Pressure-receiving blocks 308 are installed on the sides of the two pressing plates 305 close to each other. The pressure-receiving blocks 308 are arranged on the side of the pressing plates 305 close to the first fixing platform 301. The pressure-receiving blocks 308 are triangular in shape. A moving block 309 is arranged on the fixing shaft 302. The moving block 309 is located on the side of the pressing plate 305 close to the first fixing platform 301. A top block 310 is installed on the side of the moving block 309 remote from the first fixing platform 301. The top block 310 is frustum-shaped. The outer wall of the top block 310 contacts the inclined outer wall of the pressure-receiving block 308 on the pressing plate 305. An inner groove 311 is formed inside the moving block 309. The inner groove 311 penetrates to the side of the top block 310 remote from the moving block 309. The outer wall of the fixing shaft 302 contacts the inner wall of the inner groove 311. A push plate 312 is installed at the top end of the moving block 309. The side of the push plate 312 close to the first fixing platform 301 is fixedly connected to the output end of the first air cylinder 313. The first air cylinder 313 is fixedly installed on the first fixing platform 301. The resin grinding wheel 2 is sleeved on the outside of the fixing shaft 302.

[0040] Start the first air cylinder 313 to push the top block 310 to move along the fixing shaft 302. Since the outer wall of the top block 310 contacts the inclined outer wall of the pressure-receiving block 308 on the pressing plate 305, under the action of pressure during movement, the two pressing plates 305 are pushed to move away from each other, so that the two pressing plates 305 contact the inner wall of the resin grinding wheel 2, thus facilitating the centering and fixing of the resin grinding wheel 2, facilitating the installation of the dressing tool, facilitating the dressing of the resin grinding wheel 2, and at the same time facilitating the installation of resin grinding wheels 2 of different models and facilitating the dressing of resin grinding wheels 2 of different models.

[0041] The dressing tool installation assembly 4 includes a support base 401 disposed above the base 1. A slider 402 is installed at the bottom end of the support base 401. The slider 402 is slidably installed inside a chute 403. The chute 403 is opened at the top end of the base 1. A support rod 405 is installed at the top end of the support base 401. A connecting seat 406 is installed at the top end of the support rod 405. A first pressing unit 408 is installed on the connecting seat 406. A screw rod 407 is rotatably installed at the end of the chute 403. The screw rod 407 is threadedly connected to the slider 402. One end of the screw rod 407 is fixedly connected to the output shaft of a first motor 404. The first motor 404 is fixedly installed on one side of the base 1.

[0042] The first pressing unit 408 includes a connecting plate 4082 installed on the side of the connecting seat 406 close to the resin grinding wheel 2. The connecting plate 4082 and the pressing plate 305 are on the same horizontal plane. On the side of the connecting plate 4082 close to the resin grinding wheel 2, first dressing tools 4083 are symmetrically provided. The two first dressing tools 4083 are symmetrically disposed on the front and back of the resin grinding wheel 2. At one end of the first dressing tool 4083 close to the connecting plate 4082, an end block 4086 is installed. On the side of the end block 4086 close to the connecting plate 4082, a first rotating seat 4087 is installed. A rotating rod 4088 is rotatably installed on the first rotating seat 4087. At one end of the rotating rod 4088, a second rotating seat 4089 is rotatably installed. The second rotating seats 4089 on the two rotating rods 4088 are symmetrically installed on the connecting plate 4082. At the end of the first dressing tool 4083 far from the connecting plate 4082, a sliding block 4084 is installed. On the pressing plate 305 on the side close to the connecting plate 4082, sliding grooves 4081 are symmetrically opened. The sliding grooves 4081 are symmetrically opened on the side of the pressing plate 305 close to the connecting plate 4082. The two sliding blocks 4084 are respectively slidably disposed inside the two sliding grooves 4081. On the side of the sliding block 4084 far from the first dressing tool 4083, sliding wheels 4085 are installed at equal intervals. A second pressing unit 409 is installed outside the two first dressing tools 4083.

[0043] Turn on the first motor 404, so that the two first dressing tools 4083 move to the front and back of the resin grinding wheel 2, and the sliding blocks 4084 are inserted into the sliding grooves 4081 on the pressing plate 305. When the connecting plate 4082 continues to move, the rotating rod 4088 rotates to drive the two first dressing tools 4083 to approach each other, so that the two first dressing tools 4083 are respectively pressed against the front and back of the resin grinding wheel 2. This facilitates scraping and dressing the surface of the resin grinding wheel 2 when the resin grinding wheel 2 rotates, and is convenient for contacting the surfaces of resin grinding wheels 2 of different models, facilitating the dressing of resin grinding wheels 2 of different models.

[0044] The second pressing unit 409 includes two second trimming knives 4091. The two second trimming knives 4091 are symmetrically arranged on the upper and lower sides of the first trimming knife 4083. The upper surface and the lower surface of the first trimming knife 4083 are respectively in contact with the sides of the two second trimming knives 4091 that are close to each other. A middle partition plate 4092 is installed between the two second trimming knives 4091. The middle partition plate 4092 is located between the two first trimming knives 4083. Side plates 4094 are symmetrically arranged at both ends of the second trimming knife 4091. Connecting blocks 4093 are symmetrically installed on the sides of the side plates 4094 close to the second trimming knife 4091. The two connecting blocks 4093 are fixedly connected to the two second trimming knives 4091 respectively. Side plates 4095 are symmetrically installed on the sides of the two side plates 4094 that are far away from each other. A movable rod 4096 is installed on the side of the side plate 4095 close to the connecting plate 4082. The movable rod 4096 is movably installed inside a connecting cylinder 4097. The connecting cylinders 4097 are symmetrically installed on the side of the connecting plate 4082 close to the resin grinding wheel 2. A second spring 4098 is installed on the side of the movable rod 4096 close to the connecting plate 4082. One end of the second spring 4098 is fixedly connected to the inner wall of the connecting cylinder 4097. A magnetic block 4099 is installed on the side plate 4095. An electromagnet 40910 is provided on the side of the magnetic block 4099 close to the connecting plate 4082. The electromagnet 40910 is fixedly installed on the connecting plate 4082. The electromagnet 40910 is externally connected to a power source. The electromagnet 40910 is adapted to the magnetic block 4099.

[0045] After the two first trimming knives 4083 are respectively in contact with the front and back surfaces of the resin grinding wheel 2, the movement of the connecting plate 4082 drives the second trimming knife 4091 to move towards the resin grinding wheel 2. At the same time, the electromagnet 40910 is turned on to generate a repulsive force on the magnetic block 4099. Under the action of the repulsive force, the second trimming knife 4091 is closely attached to the outer edge part of the resin grinding wheel 2, which is convenient for scraping and trimming the outer edge of the resin grinding wheel 2 when the resin grinding wheel 2 rotates, and is convenient for contacting the outer edges of resin grinding wheels 2 of different models, facilitating the trimming of resin grinding wheels 2 of different models.

[0046] The driving rotation assembly 5 includes a second fixed seat 501 provided on the side of the resin grinding wheel 2 away from the connecting plate 4082. The second fixed seat 501 is fixedly installed on the top of the base 1. The second fixed seat 501 is evenly provided with guide grooves 502. There are three guide grooves 502. The three guide grooves 502 are arranged equidistantly in the longitudinal direction. A guide block 503 is slidably installed inside the guide groove 502. Limiting plates 504 are symmetrically installed on both sides of the guide block 503. The two limiting plates 504 are respectively connected to the front and back sides of the second fixed seat 501 on one side close to each other. A second motor 505 is installed on the limit plate 504 located on the back side of the second fixed seat 501, and the output shaft of the second motor 505 is rotatably connected to the guide block 503. A friction roller 506 is installed on the output shaft of the second motor 505, and the friction roller 506 is located on the front side of the second fixed seat 501. The middle friction roller 506 and the clamping plate 305 are on the same horizontal plane, and the side of the guide block 503 away from the resin grinding wheel 2 is fixedly connected to the output end of the second cylinder 507, and the second cylinder 507 is fixedly installed on the second fixed seat 501.

[0047] Turn on each second cylinder 507 to push each friction roller 506 toward the resin grinding wheel 2, so that each friction roller 506 contacts the outer edge of the resin grinding wheel 2, turn on each second motor 505, so that each friction roller 506 rotates in the same direction, and under the action of friction, drives the resin grinding wheel 2 to rotate, so that under the action of the first dressing knife 4083 and the second dressing knife 4091, the surface of the resin grinding wheel 2 is scraped and trimmed, which is convenient for comprehensive trimming of the surface of the resin grinding wheel 2, without the need for flipping processing, and improves processing efficiency. In addition, the moving distance of the guide block 503 is different, which facilitates the friction roller 506 to contact the outer edge of the resin grinding wheel 2 of different types, thereby facilitating the rotation of resin grinding wheels 2 of different models, thereby further facilitating the trimming of resin grinding wheels 2 of different models.

[0048] A resin grinding wheel dressing method, the dressing method comprises the following steps:

[0049] S1. Place the resin grinding wheel 2 on the outside of the fixed shaft 302, start the first cylinder 313, drive the top block 310 to move along the fixed shaft 302, generate pressure on the pressure block 308 on the pressing plate 305, push the two pressing plates 305 away from each other and tightly contact the inner wall of the resin grinding wheel 2, and center and fix the resin grinding wheel 2. Specifically:

[0050] When in use, the circular hole of the resin grinding wheel 2 is sleeved on the outside of the fixed shaft 302, and the first cylinder 313 is turned on, so that the output end of the first cylinder 313 extends outward, pushing the top block 310 to move toward the clamping plate 305. Since the outer wall of the top block 310 contacts the inclined side wall of the pressure block 308 on the clamping plate 305, during the movement of the top block 310, pressure is generated on the inclined side wall of the pressure block 308, thereby pushing the two clamping plates 305 away from each other, so that the side of the two clamping plates 305 away from each other is tightly attached to the inner wall of the circular hole of the resin grinding wheel 2, centering and pressing the resin grinding wheel 2, which is convenient for fixing resin grinding wheels 2 with different inner diameters and convenient for dressing resin grinding wheels 2 of different models.

[0051] S2. Turn on the first motor 404 to move the connecting plate 4082 toward the resin grinding wheel 2, so that the two first dressing knives 4083 move to the front and back of the resin grinding wheel 2 respectively, and the sliding blocks 4084 on the first dressing knives 4083 are inserted into the sliding grooves 4081 on the pressing plate 305. After the connecting plate 4082 continues to move, the two first dressing knives 4083 are driven to move closer to each other, and respectively come into close contact with the front and back of the resin grinding wheel 2. Specifically:

[0052] Then, the first motor 404 is turned on to rotate the screw 407. Since the slider 402 is threadedly connected to the screw 407, the connecting plate 4082 is driven to move toward the resin grinding wheel 2, so that the two first dressing knives 4083 are respectively moved to the front and back sides of the resin grinding wheel 2, so that the sliding blocks 4084 at one end of the two first dressing knives 4083 are respectively inserted into the two sliding grooves 4081 on the clamping plate 305. Then, as the connecting plate 4082 continues to move, the rotating rod 4088 is driven to rotate, so that the two first dressing knives 4083 approach each other along the sliding grooves 4081 until the two first dressing knives 4083 respectively contact the front and back sides of the resin grinding wheel 2.

[0053] S3. During the movement of the connecting plate 4082, the second dressing knife 4091 is driven to move toward the outer edge of the resin grinding wheel 2. The electromagnet 40910 is energized to generate a repulsive force on the magnetic block 4099. Under the action of the repulsive force, the second dressing knife 4091 is pressed against the outer edge of the resin grinding wheel 2. Specifically:

[0054] When the connecting plate 4082 moves, the electromagnet 40910 is energized to generate a repulsive force on the magnetic block 4099. Under the action of the repulsive force, the second dressing knife 4091 is pushed toward the resin grinding wheel 2. Finally, the two second dressing knives 4091 are tightly attached to the side walls of the resin grinding wheel 2, thereby facilitating the two first dressing knives 4083 to contact the outer surface of the resin grinding wheel 2, and the two second dressing knives 4091 to contact the outer edge of the resin grinding wheel 2. When the resin grinding wheel 2 rotates, it is convenient to dress various parts of the resin grinding wheel 2, and it is convenient to dress different models of resin grinding wheels 2.

[0055] S4. Activate each second cylinder 507, push each friction roller 506 towards the resin grinding wheel 2, and make it contact with the outer edge of the resin grinding wheel 2. Activate the second motor 505 to make each friction roller 506 rotate in the same direction. Under the action of friction, the resin grinding wheel 2 is driven to rotate, so that the first dressing tool 4083 and the second dressing tool 4091 scrape and dress the surface of the resin grinding wheel 2. Specifically:

[0056] Activate each second cylinder 507, thereby pushing each guide block 503 towards the resin grinding wheel 2, making each friction roller 506 contact with the outer edge of the resin grinding wheel 2. Activate the second motor 505 to drive each friction roller 506 to rotate in the same direction, thereby driving the resin grinding wheel 2 to rotate, making the first dressing tool 4083 and the second dressing tool 4091 scrape the surface of the resin grinding wheel 2, so as to facilitate the dressing of the resin grinding wheel 2. At the same time, the friction roller 506 moves horizontally along the guide groove 502, so that each friction roller 506 can contact the outer edge of the resin grinding wheel 2, facilitating the driving rotation of resin grinding wheels 2 of different models and facilitating the dressing of the resin grinding wheel 2.

[0057] Embodiment 2

[0058] During the use of Embodiment 1, it is found that when using the centering and fixing component 3, the resin grinding wheel 2 is limited by the outward movement of the two pressing plates 305. It is very easy for the pressing plates 305 not to be completely parallel to the diameter of the resin grinding wheel 2 when centering and fixing the resin grinding wheel 2, but to abut against the upper horizontal position in the round hole, which causes the axis of the fixing shaft 302 and the axis of the resin grinding wheel 2 to deviate, resulting in the deviation of the grinding of the resin grinding wheel 2. Therefore, the centering operation of the resin grinding wheel 2 needs to be adjusted to achieve the actual centering and fixing operation. The present invention proposes the following improvement scheme:

[0059] The fixed shaft 302 and the middle friction roller 506 are arranged on a horizontal plane, which can ensure the basic centering operation. A displacement sensor is fixedly assembled on the middle friction roller 506. Through this displacement sensor, the distance that the friction roller 506 moves relative to its initial position can be detected at all times. This distance corresponds one-to-one with the outer diameter of the resin grinding wheel 2. That is, the smaller the outer diameter of the resin grinding wheel 2, the greater the distance that the friction roller 506 moves, and vice versa. At the same time, the sum of the radius R of the resin grinding wheel 2 and the length L1 that the friction roller 506 needs to move is the same as the distance L between the fixed shaft 302 and the initial position of the friction roller 506. When the resin grinding wheel 2 is installed on the fixed shaft 302, the controller controls the middle second cylinder 507 to extend a corresponding length to drive the friction roller 506 to fit with the outer side wall of the resin grinding wheel 2. If the friction roller 506 does not fit with the outer side wall of the resin grinding wheel 2, it indicates that the resin grinding wheel 2 has a fixed offset at this time. At this time, the controller activates the upper and lower second cylinders 507 to push the upper and lower friction rollers 506 to move synchronously towards the resin grinding wheel 2. During this process, the eccentric side of the resin grinding wheel 2 can contact the friction roller 506, and the resin grinding wheel 2 is prompted to rotate under the drive of the friction roller 506. When the eccentric side rotates to one side, it will contact another group of friction rollers 506 and then rotate again. In this way, it can be repeated continuously so that all the friction rollers 506 contact the outer edge of the resin grinding wheel 2. During the rotation of the resin grinding wheel 2, the resin grinding wheel 2 is driven by the upper and lower friction rollers 506, and at the same time, the pressing position of the pressing plate 305 and the circular hole on the resin grinding wheel 2 is changed by the extrusion effect between the two. At the same time, the first cylinder 313 acts synchronously to drive the top block 310 to continuously press the pressed block 308, which can prompt the two groups of pressing plates 305 to expand outward to reach the maximum moving distance. Repeating this process, the center position of the resin grinding wheel 2 on the fixed shaft 302 is adjusted by the extrusion of the friction roller 506 and the continuous feeding of the first cylinder 313. This can ensure that the resin grinding wheel 2 will not be eccentrically fixed when installed on the fixed shaft 302, and even if eccentricity occurs, the resin grinding wheel 2 can be quickly and conveniently corrected.

[0060] Embodiment III

[0061] The trimming tool mounting assembly 4 can be used to scrape and trim the resin grinding wheel 2, and the driving and rotating assembly 5 drives the resin grinding wheel 2 to rotate. During use, since the outer edge of the resin grinding wheel 2 is not a standard circle after being manufactured and there are protrusions on its outer edge, it is necessary to cooperate with the trimming tool mounting assembly 4 to scrape and remove the protrusions. Since the height of the protrusions cannot be detected, it is easy to cause excessive movement of the trimming tool mounting assembly 4 during use, resulting in excessive scraping adjustment and then excessive trimming amount of the resin grinding wheel 2, which affects the trimming quality of the resin grinding wheel 2. Therefore, in the second embodiment, the scraping amount of the trimming tool mounting assembly 4 cannot be adjusted and matched with the feeding amount of the friction roller 506 in real time. Based on this, the following technical solutions are proposed in this application document:

[0062] During the use of the second embodiment, after the centering work of the resin grinding wheel 2 is completed, at this time, the three friction rollers 506 are all in a rotating state. After the centering work is completed, the second cylinder 507 can move to drive the friction roller 506 to move to ensure contact with the resin grinding wheel 2. At this time, the position where the middle friction roller 506 is located is recorded as the initial driving position of the resin grinding wheel 2 to drive the resin grinding wheel 2. Since there are protrusions on the outer side of the resin grinding wheel 2, the middle friction roller 506 is kept in contact with the outer side wall of the resin grinding wheel 2 all the time. After the resin grinding wheel 2 rotates one week, due to the existence of the protrusions, the friction roller 506 will be reversely extruded, resulting in the second cylinder 507 moving backward after being extruded. And the friction roller 506 will follow the protrusion condition of the outer edge of the resin grinding wheel 2 after the resin grinding wheel 2 rotates one week. That is, when the outer diameter of the resin grinding wheel 2 decreases, the telescopic amount of the second cylinder 507 increases; when the outer diameter of the resin grinding wheel 2 increases, the telescopic amount of the second cylinder 507 decreases. Therefore, after the resin grinding wheel 2 rotates one week, the difference between the maximum amount and the minimum amount of the movement of the friction roller 506 detected by the displacement sensor, that is, the difference between the maximum distance and the minimum distance of the movement of the middle friction roller 506, is the thickness of the protrusion to be scraped on the resin grinding wheel 2. Therefore, when the friction roller 506 drives the resin grinding wheel 2 to work, the backward movement amount of the friction roller 506 under the extrusion of the resin grinding wheel 2 is also the distance that the trimming tool mounting assembly 4 needs to retreat, so as to ensure that the trimming tool mounting assembly 4 can gradually scrape and remove the protrusions, and the displacement sensor can always detect the movement distance of the friction roller 506 and control the feeding amount of the trimming tool mounting assembly 4 to ensure the trimming amount of the resin grinding wheel 2. Specifically:

[0063] When the friction roller 506 moves to the minimum distance, the position of the dressing tool mounting assembly 4 just contacts the outer edge of the protrusion. When the friction roller 506 moves to the minimum distance under the drive of the second cylinder 507, the controller controls the electromagnet 40910 to be powered on, which can generate a repulsive force on the magnetic block 4099. Under the action of the repulsive force, the second dressing tool 4091 is pushed towards the resin grinding wheel 2. As the distance increases, the current input into the electromagnet 40910 gradually increases. Eventually, the second dressing tool 4091 contacts the side wall of the resin grinding wheel 2. And when the friction roller 506 moves backward following the protrusion, the controller increases the current of the electromagnet 40910 by a fixed value. In this way, the feed amount of the second dressing tool 4091 relative to the resin grinding wheel 2 is fixed, so that a fixed amount of scraping of the protrusion can be achieved by the second dressing tool 4091. By analogy, whenever the protrusion causes the friction roller 506 to move backward, the controller will gradually increase the current introduced into the electromagnet 40910, so as to achieve precise control of the feed scraping amount of the second dressing tool 4091, ensuring that every time the protrusion squeezes the friction roller 506 once, the second dressing tool 4091 can feed once to achieve scraping of the protrusion until the protrusion is completely scraped off. At the same time, the feed amount of the second dressing tool 4091 can be gradually increased in such an operation until the resin grinding wheel 2 reaches the dressing standard.

[0064] It should be noted that the friction roller 506 will move backward under the extrusion of the protrusion on the resin grinding wheel 2, and this backward movement amount is the height of the protrusion. Then, by gradually increasing the current introduced into the electromagnet 40910 in a fixed amount, it is ensured that the feed scraping amount of the second dressing tool 4091 is the same every time the resin grinding wheel 2 rotates one week, so that the outer scraping progress on the resin grinding wheel 2 can be kept consistent.

[0065] In addition, when the backward movement amount of the friction roller 506 does not change each time or the change range of the backward movement amount each time is less than the feed amount of the second dressing tool 4091, it indicates that the scraping ability of the second dressing tool 4091 for the protrusions on the surface of the resin grinding wheel 2 has decreased. At this time, it indicates that the second dressing tool 4091 has tool breakage or excessive wear and loses the scraping effect on the resin grinding wheel. At this time, the controller issues a control signal to replace the second dressing tool 4091, which is convenient for the staff to replace the second dressing tool 4091 in time. In this way, the displacement change amount of the friction roller 506 can also directly reflect the feed scraping amount of the second dressing tool 4091 for the resin grinding wheel 2, so as to facilitate real-time regulation of the feed scraping amount of the second dressing tool 4091 for the resin grinding wheel 2 through the displacement change amount of the friction roller 506, and at the same time, the usage state of the second dressing tool 4091 can be detected to prevent the second dressing tool 4091 from excessive wear and affecting the normal scraping and dressing operation of the resin grinding wheel 2.

[0066] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A resin grinding wheel dressing device, comprising a base (1), characterized in that: A resin grinding wheel (2) is provided at the top of the base (1), a centering fixing assembly (3) is installed between the base (1) and the resin grinding wheel (2), a trimming knife installation assembly (4) is provided on one side of the resin grinding wheel (2), and a driving rotation assembly (5) is provided on the other side of the resin grinding wheel (2), wherein a circular hole is opened in the middle of the resin grinding wheel (2); The centering and fixing assembly (3) includes a first fixing platform (301) installed on the top of the base (1), the first fixing platform (301) is located on the back of the resin grinding wheel (2), a fixing shaft (302) is installed on the side of the first fixing platform (301) close to the resin grinding wheel (2), the fixing shaft (302) is inserted into the inside of the circular hole of the resin grinding wheel (2), and a pressing plate (305) is symmetrically provided on both sides of the fixing shaft (302), and a fixing cylinder (306) is symmetrically installed on the side of the pressing plate (305) close to the fixing shaft (302), and the internal movable part of the fixing cylinder (306) is provided. A fixed block (304) is installed, and a side rod (303) is installed on the side of the fixed block (304) close to the fixed shaft (302). The side rod (303) passes through the side of the fixed cylinder (306) close to the fixed shaft (302). One end of the side rod (303) is fixedly connected to the fixed shaft (302). The diameter of the side rod (303) is smaller than the diameter of the fixed block (304). First springs (307) are symmetrically installed on both sides of the fixed shaft (302). The ends of the two first springs (307) that are away from each other are fixedly connected to the two pressing plates (305) respectively. The trimming knife mounting assembly (4) includes a support seat (401) arranged above the base (1), a slider (402) is installed at the bottom end of the support seat (401), the slider (402) is slidably installed inside the slide groove (403), the slide groove (403) is opened at the top end of the base (1), a support rod (405) is installed at the top end of the support seat (401), a connecting seat (406) is installed at the top end of the support rod (405), a first pressing unit (408) is installed on the connecting seat (406), a screw (407) is rotatably installed at the end of the slide groove (403), the screw (407) is threadedly connected to the slider (402), one end of the screw (407) is fixedly connected to the output shaft of the first motor (404), and the first motor (404) is fixedly installed on one side of the base (1); The first pressing unit (408) includes a connecting plate (4082) mounted on a side of the connecting seat (406) close to the resin grinding wheel (2), the connecting plate (4082) and the pressing plate (305) are on the same horizontal plane, and a first trimming knife (4083) is symmetrically provided on a side of the connecting plate (4082) close to the resin grinding wheel (2), and the two first trimming knives (4083) are symmetrically provided on the front and back sides of the resin grinding wheel (2). An end block (4086) is installed near one end of the connecting plate (4082), a first rotating seat (4087) is installed on one side of the end block (4086) close to the connecting plate (4082), a rotating rod (4088) is rotatably installed on the first rotating seat (4087), a second rotating seat (4089) is rotatably installed on one end of the rotating rod (4088), and the second rotating seats (4089) on the two rotating rods (4088) are symmetrically installed on the connecting plate (4082); A sliding block (4084) is installed on the end of the first trimming knife (4083) away from the connecting plate (4082), and sliding grooves (4081) are symmetrically opened on the pressing plate (305) on the side close to the connecting plate (4082). The sliding grooves (4081) are symmetrically opened on the side of the pressing plate (305) close to the connecting plate (4082). Two sliding blocks (4084) are respectively slidably arranged inside the two sliding grooves (4081). Sliding wheels (4085) are equidistantly installed on the side of the sliding block (4084) away from the first trimming knife (4083). Second pressing units (409) are installed on the outer sides of the two first trimming knives (4083); The second pressing unit (409) comprises two second trimming knives (4091), the two second trimming knives (4091) are symmetrically arranged on the upper and lower sides of the first trimming knife (4083), the upper surface and the lower surface of the first trimming knife (4083) are respectively in contact with the sides of the two second trimming knives (4091) that are close to each other, a middle partition plate (4092) is installed between the two second trimming knives (4091), the middle partition plate (4092) is located between the two first trimming knives (4083), side plates (4094) are symmetrically provided at both ends of the second trimming knife (4091), and connecting blocks (4093) are symmetrically installed on the side of the side plate (4094) close to the second trimming knife (4091), and the two connecting blocks (4093) are respectively fixedly connected to the two second trimming knives (4091); The two side plates (4094) are symmetrically mounted with side plates (4095) on the side away from each other, and a movable rod (4096) is mounted on the side of the side plate (4095) close to the connecting plate (4082). The movable rod (4096) is movably mounted inside the connecting tube (4097). The connecting tube (4097) is symmetrically mounted on the side of the connecting plate (4082) close to the resin grinding wheel (2). The movable rod (4096) is mounted on the side close to the connecting plate (4082). A second spring (4098), one end of the second spring (4098) is fixedly connected to the inner wall of the connecting tube (4097), a magnetic block (4099) is installed on the side plate (4095), an electromagnet (40910) is provided on the side of the magnetic block (4099) close to the connecting plate (4082), the electromagnet (40910) is fixedly installed on the connecting plate (4082), the electromagnet (40910) is externally connected to a power supply, and the electromagnet (40910) is adapted to the magnetic block (4099).

2. A resin grinding wheel dressing device according to claim 1, characterized in that: A pressure block (308) is installed on the side of the two pressing plates (305) close to each other. The pressure block (308) is arranged on the side of the pressing plate (305) close to the first fixed platform (301). The pressure block (308) is arranged in a triangular shape. A moving block (309) is provided on the fixed shaft (302). The moving block (309) is located on the side of the pressing plate (305) close to the first fixed platform (301). A top block (310) is installed on the side of the moving block (309) away from the first fixed platform (301). The top block (310) is arranged in a truncated cone shape. The outer wall of the top block (310) contacts the inclined outer wall of the pressure block (308). An inner groove (311) is opened inside the moving block (309). The inner groove (311) passes through the side of the top block (310) away from the moving block (309). The outer wall of the fixed shaft (302) contacts the inner wall of the inner groove (311).

3. The resin grinding wheel dressing device according to claim 2, characterized in that: A push plate (312) is installed at the top of the moving block (309), and a side of the push plate (312) close to the first fixed platform (301) is fixedly connected to the output end of the first cylinder (313), and the first cylinder (313) is fixedly installed on the first fixed platform (301).

4. The resin grinding wheel dressing device according to claim 3, characterized in that: The driving rotation assembly (5) comprises a second fixed seat (501) provided on a side of the resin grinding wheel (2) away from the connecting plate (4082), the second fixed seat (501) being fixedly mounted on the top of the base (1), the second fixed seat (501) being evenly provided with guide grooves (502), three guide grooves (502) being provided, the three guide grooves (502) being longitudinally equidistantly arranged, a guide block (503) being slidably mounted inside the guide groove (502), and limiting plates (504) being symmetrically mounted on both sides of the guide block (503), the two limiting plates (504) being close to each other and respectively contacting the front and back surfaces of the second fixed seat (501). A second motor (505) is installed on a limiting plate (504) located on the back side of the second fixed seat (501), and an output shaft of the second motor (505) is rotatably connected to the guide block (503). A friction roller (506) is installed on the output shaft of the second motor (505), and the friction roller (506) is located on the front side of the second fixed seat (501). The middle friction roller (506) and the pressing plate (305) are on the same horizontal plane. The side of the guide block (503) away from the resin grinding wheel (2) is fixedly connected to the output end of the second cylinder (507), and the second cylinder (507) is fixedly installed on the second fixed seat (501).

5. A resin grinding wheel dressing method is implemented using the resin grinding wheel dressing device according to claim 4, and the dressing method comprises the following steps: S1. The resin grinding wheel (2) is sleeved on the outside of the fixed shaft (302), and the first air cylinder (313) is turned on to drive the top block (310) to move along the fixed shaft (302), thereby generating pressure on the pressure block (308) on the pressing plate (305), pushing the two pressing plates (305) away from each other and closely contacting the inner wall of the resin grinding wheel (2), thereby centering and fixing the resin grinding wheel (2); S2, turning on the first motor (404), causing the connecting plate (4082) to move toward the resin grinding wheel (2), causing the two first trimming knives (4083) to move to the front and back sides of the resin grinding wheel (2), respectively, and the sliding blocks (4084) on the first trimming knives (4083) to be inserted into the sliding grooves (4081) on the pressing plate (305), and after the connecting plate (4082) continues to move, the two first trimming knives (4083) are driven to approach each other, respectively, and to be in close contact with the front and back sides of the resin grinding wheel (2); S3. During the movement of the connecting plate (4082), the second dressing knife (4091) is driven to move toward the outer edge of the resin grinding wheel (2). The electromagnet (40910) is energized to generate a repulsive force on the magnetic block (4099). Under the action of the repulsive force, the second dressing knife (4091) is pressed against the outer edge of the resin grinding wheel (2); S4. Turn on each second air cylinder (507) to push each friction roller (506) toward the resin grinding wheel (2) and into contact with the outer edge of the resin grinding wheel (2). Turn on the second motor (505) to make each friction roller (506) rotate in the same direction. Under the action of friction, the resin grinding wheel (2) is driven to rotate, so that the first dressing knife (4083) and the second dressing knife (4091) scrape and dress the surface of the resin grinding wheel (2).

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