A manufacturing and dressing method and dressing device for metal bond grinding wheel

Abstract

The present invention discloses a manufacturing and dressing method and a dressing device for a metal bond grinding wheel, and relates to the field related to the manufacturing and dressing of grinding wheels. The present invention adopts a micro-vibration assisted dressing process, reduces the dressing force through high-frequency micro-vibration, reduces the surface defects and particle damage of the grinding wheel, and improves the dressing accuracy and surface finish; combined with an automatic cooling and detection system, it realizes efficient, safe, and intelligent operation, while ensuring that the diamond particles are evenly exposed, greatly improving the cutting performance and service life of the grinding wheel, and is suitable for mass production needs. By using a dressing device during the dressing process, the position of the metal bond grinding wheel can be intermittently adjusted, and the outer side of the grinding wheel can be efficiently cleaned during the dressing process. An adjustment mechanism is provided at the bottom, and the adjustment mechanism is driven by a motor and a cylinder. Under the drive, the height adjustment and plane position adjustment of the lifting mechanism can be realized, which is convenient for efficient and rapid adjustment during the dressing process, and effectively improves work efficiency.

Description

Technical Field

[0001] The invention relates to the field related to grinding wheel manufacturing and dressing, and in particular to a manufacturing and dressing method and a dressing device for a metal bond grinding wheel. Background Art

[0002] Diamond grinding wheel is a high-performance grinding tool with diamond as the main abrasive, bonded by a binder (such as resin, metal or ceramic). It is widely used in the precision processing of high-hardness materials such as cemented carbide, ceramics, glass, etc. It has excellent cutting and grinding performance due to its high hardness, strong wear resistance and high thermal conductivity.

[0003] A carbon fiber diamond grinding wheel and its preparation process with Chinese patent application number: CN202411129135.8, specifically relates to the field of grinding wheel technology, mainly including a sleeve, a grinding wheel and a slide frame, the grinding wheel is fixed on the outer wall of the sleeve, the slide frame is fixed on the inner wall of the sleeve, and a large gap adjustment mechanism is installed inside the slide frame; wherein, the large gap adjustment mechanism includes a screw rotatably installed inside the slide frame, and the outer wall of the screw is threadedly connected to two sleeve blocks. The present invention uses a large gap adjustment mechanism, the screw rotates inside the slide frame, the two sliders carry two sliding blocks close to each other, the sleeve slider carries the distance sensor to move right, when the distance between the two distance sensors is the distance set by the controller, the adjuster stops rotating the rotating cap, the interval of the slot body of different workpieces can be based on the grinding contact needs, the gap of the slot body of different workpieces can be accurately adjusted, and the application range of the diamond grinding wheel is wider.

[0004] The above patents and prior art have the following problems in actual use: the protection effect on diamond particles during the processing is weak, the size of diamond particles after processing is uneven, the yield is low, and the lack of coating leads to excessive dust during the processing, affecting the environment; the grinding wheel needs to be trimmed after being processed, and most of them are adjusted and cleaned manually or semi-automatically, which is labor-intensive and reduces work efficiency. Summary of the invention

[0005] Therefore, in order to solve the above-mentioned shortcomings, the present invention provides a manufacturing and dressing method and a dressing device for a metal bond grinding wheel.

[0006] In order to achieve the above object, the present invention adopts the following technical scheme: a manufacturing and dressing method and a dressing device for a metal bond grinding wheel, the steps are as follows:

[0007] S1: Raw material preparation, wetting agent, metal powder, binder, phenyl alcohol and titanium-coated diamond;

[0008] S2: Wetting powder preparation, mixing the wetting agent and the metal powder to form a metal binder, the mixing time is 3-4 hours, the binder and phenylethanol are mixed by a mixer to form a mixed solution, and then the metal binder and the mixed solution are mixed to form a wetted powder, the ratio is 100g:100mL;

[0009] S3: Powder coating, put the titanium-coated diamond into the coating machine tank, then use compressed air to float the titanium-coated diamond, and then use the air compressor to spray the wet powder onto the titanium-coated diamond floating in the air, with a rolling pressure of 3-10MPa. As the diamond particles increase, the pressure gradually increases, and the time is 0.5h-1h;

[0010] S4: Screening treatment: Screening the processed diamond-coated particles and selecting particles with the same particle size for use;

[0011] S5: Compression molding: spray a release agent on the inner surface of the mold, pour the treated diamond-coated particles evenly into the mold, set the hot press temperature to 700°C, the pressure to 25 MPa, keep the pressing time for 10 minutes, gradually reduce the pressure and cool the mold, and take out the molded grinding wheel blank;

[0012] S6: Sintering: put the grinding wheel blank into a vacuum sintering furnace, arrange it neatly, heat it from room temperature to 850°C, with a heating rate of 10°C / min, keep it warm for 1 hour, maintain the vacuum degree at 10⁻³ Pa to prevent oxidation, cool it down to room temperature naturally, and take out the sintered grinding wheel;

[0013] S7: Dressing, a dressing machine equipped with a micro-vibration module with a frequency range of 20-50kHz. A dressing device is installed on the top of the dressing machine to fix and adjust the position of the diamond grinding wheel. A diamond dressing knife is used. The dressing steps are as follows:

[0014] S71: presetting, starting the micro-vibration module, setting the frequency and amplitude, and ensuring that the vibration direction is perpendicular to the contact surface of the trimming knife;

[0015] S72: Rough dressing, adjust the contact depth between the dressing knife and the grinding wheel surface, initially set to 0.05mm, turn on the grinding wheel rotation and the micro-vibration function of the dressing knife, perform preliminary dressing at a speed of 3-5mm / s to remove the uneven surface layer, pause after each dressing, and check whether the grinding wheel surface is close to the design contour;

[0016] S73: Fine dressing, reduce the feed rate to 0.01-0.02mm / time, reduce the dressing speed to 1-2mm / s, enable the high-frequency micro-vibration mode of 40kHz to ensure a smaller amplitude, perform multiple small-range moves on the dressing surface, optimize particle exposure and surface finish, detect the geometry and surface quality of the grinding wheel, and gradually approach the target accuracy;

[0017] S74: Process adjustment, adjusting the grinding wheel position through the dressing device, adjusting the height and plane position to be more suitable for the dressing process, and using the dressing device to achieve efficient cleaning and drying of the outer side of the grinding wheel;

[0018] S8: Surface inspection, check the grinding wheel shape, surface roughness and particle exposure rate.

[0019] Preferably, the dressing device includes a base plate for support, an adjusting mechanism arranged on the top of the base plate, a lifting mechanism arranged on the top of the adjusting mechanism, the adjusting mechanism is used to adjust the position and height of the lifting mechanism, a first cylinder arranged on the right side of the lifting mechanism, and a locking member arranged on the top of the lifting mechanism for locking the grinding wheel.

[0020] Preferably, the adjustment mechanism includes three groups of connecting rods arranged above the base plate, connecting blocks arranged at both ends of the connecting rods, supports hinged to the connecting blocks, a first motor arranged on the outside of the two groups of supports at the lower end, and the output shaft of the first motor passes through the support and is connected to the connecting blocks, a fixed plate arranged at the top of the upper end support, a sleeve arranged at both ends of the fixed plate, and the inner side of the sleeve is connected to the lifting mechanism, a second cylinder arranged above the middle of the base plate, a support block connected to the second cylinder ejection rod and the bottom, and a connecting seat hinged to the outside of the support block, the connecting seats at the upper and lower ends are respectively connected to the lifting mechanism and the base plate, and the bottom of the support at the lower end is arranged at the top of the base plate.

[0021] Preferably, the lifting mechanism includes a disk body connected to the connecting seat, a second motor arranged at the left end of the bottom of the disk body, guide rods arranged at both ends of the bottom of the disk body and movably embedded in the sleeve, a square groove opened at the right end of the disk body, a cleaning mechanism arranged at the right end of the square groove, a driving pulley arranged at the left end of the disk body and connected to the output shaft of the second motor, a synchronous belt arranged on the outside of the driving pulley, a driven pulley arranged at the other end of the synchronous belt, and an intermittent device arranged in the middle of the disk body and connecting the driven pulley and the locking member.

[0022] Preferably, the intermittent device includes an outer shell arranged in the middle of the disk body, a driving wheel arranged at the left end of the outer shell, a connecting shaft arranged in the middle of the driving wheel and connected to the driven pulley, a driving column arranged at one end of the driving wheel, a follower disk arranged at the top right end of the driving wheel, guide columns installed at the four ends of the follower disk and a connecting shaft arranged in the middle of the follower disk, and the top of the connecting shaft passes through the disk body to connect the locking piece.

[0023] Preferably, a strip groove is provided in the middle between the four groups of guide columns and inside the follower disk, and the shifting column is movably embedded in the strip groove.

[0024] Preferably, an arc-shaped guide groove is provided in the toggle wheel near the edge, and the guide post is movably embedded in the arc-shaped guide groove.

[0025] Preferably, a fixing block is provided at the upper end of the outer side of the connecting shaft, and the top of the fixing block is fixed to the top of the outer shell for support.

[0026] Preferably, the cleaning mechanism includes a support base fixedly mounted on the right side of the disc body, the support base connected to the first cylinder on the right side, a guide member arranged on the left side of the support base and connected to the first cylinder ejection rod on the right side, the guide member arranged inside the square groove, a water spray member and a brush arranged at the upper and lower ends of the guide member, two sets of access pipes arranged at the front end of the water spray member and a motor arranged at the bottom of the guide member, and a water spray hole is opened on the left side of the water spray member.

[0027] Preferably, a threaded rod connected to the motor output shaft is provided in the middle of the guide member, a sliding block is threadedly connected to the outer side of the threaded rod, and a connecting plate for connecting the water spraying member and the brush is fixed to the left side of the sliding block.

[0028] Beneficial effects of the present invention:

[0029] The present invention achieves the following advantages by using a coating process in combination with a metal binder in a diamond raw material: improving fluidity: after diamond and powder form a pellet, fluidity is better, which is convenient for uniform distribution in the manufacturing process, improving product quality, and improving uniformity: each diamond is coated with a volume of metal powder, and the sizes of diamond particles after coating are basically the same, the diamonds are evenly distributed, and the utilization rate is improved: there is only one diamond in each particle, which avoids contact between diamonds, improves the holding ability of the matrix on diamonds, and reduces dust pollution: after powder and diamond form a pellet, dust dispersion is reduced, the harm of powder to human body is reduced, and diamonds are protected: powder coating diamonds can reduce the occurrence of diamond carbonization at high temperature and ensure the strength of diamonds.

[0030] The present invention adopts a micro-vibration assisted dressing process to reduce the dressing force through high-frequency micro-vibration, reduce the surface defects and particle damage of the grinding wheel, and improve the dressing accuracy and surface finish; combined with an automatic cooling and detection system, efficient, safe and intelligent operation is achieved, while ensuring that the diamond particles are evenly exposed, greatly improving the cutting performance and service life of the grinding wheel, and is suitable for mass production needs.

[0031] The present invention adopts a dressing device in the dressing process, and a lifting mechanism is arranged in the dressing device. The lifting mechanism can lock the metal bond grinding wheel to be dressed through a locking piece, and the lifting mechanism is built with an intermittent device and a cleaning mechanism, which can intermittently adjust the position of the metal bond grinding wheel, and perform efficient cleaning on the outer side of the grinding wheel during the dressing process, and can spray water and air for cleaning and drying, thereby reducing manual operation; and an adjusting mechanism is arranged at the bottom of the lifting mechanism, and the adjusting mechanism is driven by a motor and a cylinder, and the height adjustment and plane position adjustment of the lifting mechanism can be realized under the drive, so that efficient and rapid adjustment can be performed during the dressing process, and work efficiency can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the structure of the present invention;

[0033] Figure 2 It is a schematic diagram of the structure of the regulating mechanism of the present invention;

[0034] Figure 3 It is a schematic diagram of the structure of the lifting mechanism of the present invention;

[0035] Figure 4 It is a schematic diagram of the internal structure of the lifting mechanism of the present invention;

[0036] Figure 5 It is a schematic diagram of the intermittent device structure of the present invention;

[0037] Figure 6 It is a schematic diagram of the structure of the follower disk of the present invention;

[0038] Figure 7 It is a schematic diagram of the cleaning mechanism structure of the present invention;

[0039] Figure 8 It is a schematic diagram of the internal structure of the cleaning mechanism of the present invention from a main view.

[0040] Among them: bottom plate-1, adjustment mechanism-2, lifting mechanism-3, first cylinder-4, locking member-5, connecting rod-21, connecting block-22, support-23, first motor-24, fixed plate-25, sleeve-26, second cylinder-27, support block-28, connecting seat-29, plate body-31, second motor-32, guide rod-33, square groove-34, cleaning mechanism-35, driving pulley-36, synchronous belt-37 , driven pulley -38, intermittent device -39, housing -391, driving wheel -392, connecting shaft -393, driving column -394, follower plate -395, guide column -396, connecting shaft -397, support seat -351, guide member -352, water spray member -353, brush -354, access pipe -355, motor -356, threaded rod -352a, sliding block -352b, connecting plate -352c. DETAILED DESCRIPTION

[0041] In order to further explain the technical solution of the present invention, it is described in detail below through specific embodiments.

[0042] The invention provides a manufacturing and dressing method for a metal bond grinding wheel, comprising the steps of: S1: raw material preparation, including a wetting agent, metal powder, a binder, phenylethyl alcohol and titanium-plated diamond; S2: preparation of a wet powder, mixing the wetting agent and the metal powder to form a metal bond, the mixing time being 3.5 hours, mixing the binder and phenylethyl alcohol through a mixer to form a mixed solution, and then mixing the metal bond and the mixed solution to form a wet powder, the ratio being 100 g:100 mL; and S3: powder coating, placing the titanium-plated diamond into a coating machine jar. In the process, the titanium-coated diamond is floated by compressed air, and then the wet powder is sprayed onto the titanium-coated diamond floating in the air by an air compressor. The rolling pressure is 6MPa. As the diamond particles increase, the pressure gradually increases. The time is 0.7h. Sieving treatment: the treated diamond-coated particles are sieved and particles with consistent particle size are selected for standby use; S5: molding, spraying a release agent on the inner surface of the mold, pouring the treated diamond-coated particles evenly into the mold, setting the hot press temperature to 700°C and the pressure to 25 MPa, keep pressing for 10 minutes, gradually reduce the pressure and cool the mold, take out the formed grinding wheel blank; S6: sintering, put the grinding wheel blank into a vacuum sintering furnace, arrange it neatly, heat it from room temperature to 850°C, the heating rate is 10°C / min, keep it warm for 1 hour, maintain the vacuum degree at 10⁻³ Pa to prevent oxidation, cool it down to room temperature naturally, and take out the sintered grinding wheel; S7: dressing, a dressing machine equipped with a micro-vibration module, the module frequency range is 20-50kHz, and a dressing device is installed on the top of the dressing machine to fix and adjust the position of the diamond grinding wheel, using a diamond dressing knife.

[0043] The dressing steps are as follows: S71: Pre-setting, start the micro-vibration module, set the frequency and amplitude, and ensure that the vibration direction is perpendicular to the contact surface of the dressing knife; S72, coarse dressing: adjust the contact depth between the dressing knife and the grinding wheel surface, initially set to 0.05mm, turn on the grinding wheel rotation and the micro-vibration function of the dressing knife, perform preliminary dressing at a speed of 4mm / s to remove the uneven surface layer, pause after each dressing, and check whether the grinding wheel surface is close to the designed contour; S73: Fine dressing, reduce the feed rate to 0.01-0.02mm / time, and reduce the dressing speed to 1 -2mm / s, enable high-frequency micro-vibration mode 40kHz to ensure smaller amplitude, perform multiple small-range movements on the dressing surface, optimize particle exposure and surface finish, detect the geometry and surface quality of the grinding wheel, and gradually approach the target accuracy; S74: process adjustment, adjust the grinding wheel position through the dressing device, perform height and plane position adjustments to better suit the dressing process, and use the dressing device to achieve efficient cleaning and drying of the outside of the grinding wheel; S8: surface inspection, check the grinding wheel shape, surface roughness and particle exposure rate.

[0044] See also Figure 1-Figure 2The dressing device includes a base plate 1 for support, an adjusting mechanism 2 is installed on the top of the base plate 1, and a lifting mechanism 3 is connected to the top of the adjusting mechanism 2. The adjusting mechanism 2 can adjust the position of the lifting mechanism 3 in multiple directions. A first cylinder 4 is installed on the right side of the lifting mechanism 3. A locking piece 5 is provided on the top of the lifting mechanism 3 for fixing the metal bond grinding wheel;

[0045] The adjusting mechanism 2 includes three groups of connecting rods 21 evenly arranged above the base plate 1, the upper and lower ends of the connecting rods 21 are respectively connected with connecting blocks 22, the outer side of the connecting block 22 is hinged with the support 23, the bottom of the lower end support 23 is fixed to the top of the base plate 1, and the top of the upper end support 23 is connected to the fixed plate 25, wherein the first motor 24 is arranged on the outer side of the two groups of supports 23, the output shaft of the first motor 24 extends into the support 23 and connects with the connecting block 22, sleeves 26 are fixed at both ends of the fixed plate 25, the inner side of the sleeve 26 is connected to the lifting mechanism 3, and a second cylinder 27 is arranged at the lower middle part of the lifting mechanism 3, the top push rod and the bottom of the second cylinder 27 are respectively connected to the support block 28, the outer side of the support block 28 is hinged with a connecting seat 29, the top of the upper connecting seat 29 is connected to the lifting mechanism 3, and the bottom of the lower connecting seat 29 is fixed to the base plate 1.

[0046] See also Figure 3-Figure 4 The lifting mechanism 3 includes a disk body 31 connected to the connecting seat 29 in the middle of the bottom end, a second motor 32 is installed at the left end of the bottom of the disk body 31, guide rods 33 are fixed at both ends of the bottom of the disk body 31, and the guide rods 33 are movably embedded in the sleeve 26 for guidance. A square groove 34 is opened at the right end of the disk body 31, and a cleaning mechanism 35 is arranged at the right end of the square groove 34. The upper right end of the cleaning mechanism 35 is connected to the disk body 31, and the right side of the cleaning mechanism 35 is connected to the first cylinder 4. A driving pulley 36 connected to the output shaft of the second motor 32 is arranged at the left end of the disk body 31, and the outer side of the driving pulley 36 is connected to the driven pulley 38 through a synchronous belt 37. The middle of the driven pulley 38 is connected to an intermittent device 39, and the intermittent device 39 is installed in the middle of the disk body 1, and the top of the intermittent device 39 is connected to a locking piece 5, which can be adjusted.

[0047] See also Figure 5-Figure 6The intermittent device 39 includes a shell 391 disposed in the disk body 31, a toggle wheel 392 is disposed at the left end of the shell 391, a connecting shaft 393 is disposed in the middle of the toggle wheel 392, the bottom of the connecting shaft 393 is connected to the middle of the driven pulley 38, a toggle column 394 is fixed to one end of the top of the toggle wheel 392, a follower disk 395 is disposed at the right end of the top of the toggle wheel 392, and guide columns 396 are disposed at four ends of the follower disk 395, and a central portion between each group of guide columns 396 is located inside the follower disk 395. The strip groove, the toggle column 394 can be movably embedded in the strip groove to toggle the follower disk 395, an arc guide groove is opened near the edge of the toggle wheel 392, and the guide column 396 is movably embedded in the arc guide groove to slide, a connecting shaft 397 is arranged in the middle of the toggle wheel 392, a fixed block is arranged on the upper end of the outer side of the connecting shaft 397, the top of the fixed block is fixed to the top of the shell 391 for support, the top of the connecting shaft 397 passes through the top of the disk body 31 to connect the locking piece 5, and the locking piece 5 is adjusted accordingly.

[0048] See also Figure 7-Figure 8 The cleaning mechanism 35 includes a support seat 351 fixed on the right side of the disc body 31, the right side of the support seat 351 is connected to the first cylinder 4, a guide member 352 is arranged on the left side of the support seat 351, the guide member 352 is arranged inside the square groove 34, the guide member 352 is connected to the left side of the first cylinder 4. A notch is opened on the left side of the guide member 352, and a water spraying member 353 and a brush 354 are respectively arranged at the upper and lower ends of the notch, a water spraying hole is opened on the left side of the water spraying member 353, and two groups of access pipes 355 are arranged at the front end of the water spraying member 353, one group of access pipes 355 is connected to an external water supply device, and the other group is connected to an external blowing device, and an electromagnetic valve needs to be installed in the middle of the access pipe 355, and a motor 356 is arranged at the bottom of the guide member 352;

[0049] A threaded rod 352a connected to the output shaft of the motor 356 is provided in the middle of the guide member 352, a sliding block 352b is threadedly connected to the outer side of the threaded rod 352a, and a connecting plate 352c for connecting the water spraying member 353 and the brush 354 is fixed to the left side of the sliding block 352b.

[0050] The specific implementation process is as follows:

[0051] When the dressing device needs to be used, first fix the metal bond grinding wheel to be dressed on the top of the disc body 31 through the locking piece 5, and then the side dressing can be performed through the external dressing head. When the angle needs to be adjusted during the dressing process, start the second motor 32 to start working. The second motor 32 drives the active pulley 36 to rotate. During the rotation of the active pulley 36, it can drive the synchronous belt 37 to make the driven pulley 38 rotate. During the rotation of the driven pulley 38, it drives the connecting shaft 393 to rotate. The connecting shaft 393 can drive the toggle wheel 392 to rotate. The toggle wheel 392 toggles the follower disc 395 through the toggle column 394. The follower disc 395 is toggled once to achieve a ninety-degree rotation. The connecting shaft 397 in the middle can drive the locking piece 5 connected to the top to rotate, so that the position of the metal bond grinding wheel can be adjusted.

[0052] If it is necessary to adjust the plane position or height position during the metal bond grinding wheel processing, the two groups of first motors 24 are started to work, and the first motors 24 drive the corresponding connecting blocks 22 to rotate. During the rotation of the connecting blocks 22, the connecting rods 21 can swing, so that the connecting rods 21 drive another group of connecting blocks 22 to act on the fixed disk 25, and the sleeve 26 in the middle of the fixed disk 25 can pull the guide rod 33 to adjust the plane position of the disk body 31 connected at the top; when the second cylinder 27 is started to work, the push rod at the top of the second cylinder 27 can lift the support block 28, so that the connecting seat 29 acts on the disk body 31 to lift it;

[0053] When it is necessary to clean the outer side of the metal bond grinding wheel during the dressing process, the first cylinder 4 is started, and the first cylinder 4 can push the guide member 352 through the push rod. During the pushing process, the guide member 352 moves in the square groove 34, so that the brush 354 contacts the outer side of the metal bond grinding wheel, and then the surface cleaning can be started in conjunction with the drive of the second motor 32. The external water supply device can be connected through the access pipe 355. During the cleaning process, the water is injected and sprayed out from the spray hole inside the water spray member 353. After the water spray cleaning is completed, the external air supply device can be started for air injection, and the external water supply device and the corresponding solenoid valve are closed. The air is sprayed from the water spray hole to dry the outer side of the metal bond grinding wheel. During the cleaning process, the motor 356 can be started, and the motor 356 can rotate with the threaded rod 352a. The sliding block 352b outside the threaded rod 352a can move the water spray member 353 and the brush 354 up and down through the connecting plate 352c, thereby improving the efficiency of cleaning and drying.

[0054] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for manufacturing and dressing a metal bond grinding wheel, characterized in that: Here are the steps: S1: Raw material preparation, including wetting agent, metal powder, binder, phenyl alcohol and titanium-coated diamond; S2: Wetting powder preparation, mixing the wetting agent and the metal powder to form a metal binder, the mixing time is 3-4 hours, the binder and phenylethanol are mixed by a mixer to form a mixed solution, and then the metal binder and the mixed solution are mixed to form a wetted powder, the ratio is 100g:100mL; S3: Powder coating, put the titanium-coated diamond into the coating machine tank, then use compressed air to float the titanium-coated diamond, and then use the air compressor to spray the wet powder onto the titanium-coated diamond floating in the air, with a rolling pressure of 3-10MPa. As the diamond particles increase, the pressure gradually increases, and the time is 0.5h-1h; S4: screening treatment, screening the treated diamond coated particles; S5: Compression molding: spray a release agent on the inner surface of the mold, pour the treated diamond-coated particles evenly into the mold to start molding, and then take out the molded grinding wheel blank; S6: Sintering, putting the grinding wheel blank into a vacuum sintering furnace, then naturally cooling it to room temperature, and taking out the sintered grinding wheel; S7: Dressing, a dressing machine equipped with a micro-vibration module with a frequency range of 20-50kHz. A dressing device is installed on the top of the dressing machine to fix and adjust the position of the diamond grinding wheel, using a diamond dressing knife; The dressing device includes a base plate for supporting, an adjusting mechanism arranged on the top of the base plate, a lifting mechanism arranged on the top of the adjusting mechanism, the adjusting mechanism is used to adjust the position and height of the lifting mechanism, a first cylinder arranged on the right side of the lifting mechanism, and a locking member arranged on the top of the lifting mechanism for locking the grinding wheel; The adjusting mechanism includes three groups of connecting rods arranged above the base plate, connecting blocks arranged at both ends of the connecting rods, supports hinged to the connecting blocks, a first motor arranged on the outside of the two groups of supports at the lower end, and the output shaft of the first motor passes through the support and is connected to the connecting block, a fixed plate arranged at the top of the upper end support, a sleeve arranged at both ends of the fixed plate, and the inner side of the sleeve is connected to the lifting mechanism, a second cylinder arranged above the middle of the base plate, a support block connected to the second cylinder push rod and the bottom, and a connecting seat hinged to the outside of the support block, the connecting seats at the upper and lower ends are respectively connected to the lifting mechanism and the base plate, the bottom of the lower support is arranged at the top of the base plate, and the guide rods at both ends of the bottom of the lifting mechanism are movably embedded in the sleeve.

2. The method for manufacturing and dressing a metal bond grinding wheel according to claim 1, characterized in that: The lifting mechanism includes a disc body connected to a connecting seat, a second motor arranged at the left end of the bottom of the disc body, guide rods arranged at both ends of the bottom of the disc body and movably embedded in a sleeve, a square groove opened at the right end of the disc body, a cleaning mechanism arranged at the right end of the square groove, a driving pulley arranged at the left end of the disc body and connected to the output shaft of the second motor, a synchronous belt arranged on the outside of the driving pulley, a driven pulley arranged at the other end of the synchronous belt, and an intermittent device arranged in the middle of the disc body and connecting the driven pulley and the locking member.

3. The method for manufacturing and dressing a metal bond grinding wheel according to claim 2, characterized in that: The intermittent device includes an outer shell arranged in the middle of the disk body, a driving wheel arranged at the left end of the outer shell, a connecting shaft arranged in the middle of the driving wheel and connected to the driven pulley, a driving column arranged at one end of the driving wheel, a follower disk arranged at the top right end of the driving wheel, guide columns installed at the four ends of the follower disk and a connecting shaft arranged in the middle of the follower disk, and the top of the connecting shaft passes through the disk body to connect the locking piece.

4. The method for manufacturing and dressing a metal bond grinding wheel according to claim 3, characterized in that: A strip groove is provided in the middle part between the guide posts and inside the follower plate, and the shifting post is movably embedded in the strip groove.

5. The method for manufacturing and dressing a metal bond grinding wheel according to claim 4, characterized in that: An arc-shaped guide groove is provided in the toggle wheel near the edge, and the guide column is movably embedded in the arc-shaped guide groove.

6. The method for manufacturing and dressing a metal bond grinding wheel according to claim 4, characterized in that: A fixing block is arranged at the upper end of the outer side of the connecting shaft, and the top of the fixing block is fixed to the top of the shell for support.

7. The method for manufacturing and dressing a metal bond grinding wheel according to claim 2, characterized in that: The cleaning mechanism includes a support base fixedly arranged on the right side of the disc body, the right side of the support base is connected to the first cylinder, a guide member is arranged on the left side of the support base and connected to the first cylinder ejection rod on the right side, the guide member is arranged inside the square groove, a water spray member and a brush are arranged at the upper and lower ends of the guide member, two groups of access pipes are arranged at the front end of the water spray member, and a motor is arranged at the bottom of the guide member, and a water spray hole is opened on the left side of the water spray member.

8. The method for manufacturing and dressing a metal bond grinding wheel according to claim 7, characterized in that: A threaded rod connected to the motor output shaft is arranged in the middle of the guide member, a sliding block is threadedly connected to the outer side of the threaded rod, and a connecting plate for connecting the water spraying member and the brush is fixed on the left side of the sliding block.

Images