CN114800070A - A blank bar grinding device for bearing processing production - Google Patents
A blank bar grinding device for bearing processing production Download PDFInfo
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- CN114800070A CN114800070A CN202210431858.8A CN202210431858A CN114800070A CN 114800070 A CN114800070 A CN 114800070A CN 202210431858 A CN202210431858 A CN 202210431858A CN 114800070 A CN114800070 A CN 114800070A
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- grinding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
- B24B5/04—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/35—Accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/12—Devices for exhausting mist of oil or coolant; Devices for collecting or recovering materials resulting from grinding or polishing, e.g. of precious metals, precious stones, diamonds or the like
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The invention discloses a blank bar grinding device for bearing processing production, and belongs to the technical field of grinding. The polishing machine comprises a blank material and a machine tool, wherein a chuck assembly and a grinding assembly are arranged on the machine tool, the chuck assembly clamps the blank material, the chuck assembly comprises a feeding end and a clamping end, the feeding end and the clamping end are arranged on the machine tool in a sliding mode, the feeding end and the clamping end are respectively positioned at two ends of the grinding assembly, the grinding assembly grinds the blank material, a hollow worm gear is arranged to drive a polishing mechanism to move, the diameter of the polished blank material is adjusted, a double-sided toothed ring is arranged to drive a grinding wheel to rotate, so that the abraded polishing origin is rotated away from the original position, the abraded polishing origin is replaced by an unworn ridge to form a new polishing origin, the times of trimming the grinding wheel and resetting of an operator are reduced, the polishing efficiency is improved, and the polishing precision is ensured.
Description
Technical Field
The invention relates to the technical field of grinding, in particular to a blank bar grinding device for bearing processing production.
Background
The bearing is an important part in mechanical equipment, is used for supporting a mechanical rotating body, reducing friction force in the motion process and ensuring rotation precision, carbon and chromium are infiltrated into bearing steel, the bearing steel has high hardness, high wear resistance and high elastic limit, the grinding machining belongs to finish machining, the machining amount is small, the precision is high, and the bearing is used for treating carbon tool steel and carburization quenching steel parts which are quenched by heat treatment, so that the bearing is often manufactured by using a grinding machining method in the production and machining of the bearing.
During grinding, a large number of regularly arranged grinding cracks often appear on the surface basically vertical to the grinding direction, the appearance of a part is affected, the quality of the part is also directly affected, the grinding wheel belongs to a consumable material, the grinding wheel needs to be frequently trimmed in the grinding process to enable the machined part to obtain higher precision, particularly for steel with higher hardness, the abrasion of the grinding wheel during grinding is more severe, the rough and uneven condition of the outer contour surface of a bearing is often caused when the bearing is ground, the uneven surface generates higher friction force to aggravate the abrasion loss of the grinding wheel, the surface of a ground workpiece is over-burnt and becomes hard and brittle, the workpiece is seriously scrapped, grinding scraps are mixed with oil ash and are attached to the machine tool everywhere, the cleaning is difficult, the machine body is corroded, and the operation of the machine tool is affected.
Disclosure of Invention
The invention aims to provide a blank bar grinding device for bearing processing production, which is used for solving the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a blank bar grinding device for bearing processing production, includes blank, and the device includes the lathe, be provided with chuck assembly and grinding subassembly on the lathe, chuck assembly carries out the centre gripping to blank, and chuck assembly includes the pay-off end, presss from both sides the material end, pay-off end and pressing from both sides the material end and slide and set up on the lathe, and the pay-off end is located the both ends of grinding subassembly respectively with pressing from both sides the material end, the grinding subassembly grinds blank.
Further, the grinding assembly comprises a left support frame, a right support frame, a grinding cylinder and a rotary cylinder motor, the left support frame, the right support frame and the rotary cylinder motor are all installed on the machine tool, the grinding cylinder is rotatably installed between the left support frame and the right support frame, a power gear is connected to a motor shaft of the rotary cylinder motor, a tooth socket is formed in an outer ring of the grinding cylinder, the tooth socket is in meshing transmission with the power gear, the rotary cylinder motor is electrified to drive the power gear to rotate, the power gear drives the grinding cylinder to rotate through the tooth socket on the grinding cylinder, the grinding cylinder drives the grinding mechanism to rotate, the three-jaw chuck drives the blank to rotate, the blank extending into the grinding cylinder is ground, the rotating speed of the three-jaw chuck is faster than that of the grinding cylinder, if the rotating direction of the three-jaw chuck is the same as that of the grinding cylinder, the blank is ground in a clockwise mode, and the grinding amount is small, in the case of high-precision grinding, if the rotation direction of the three-jaw chuck is opposite to that of the grinding cylinder, the blank is subjected to reverse grinding, and the grinding machine is used for processing the occasions of large grinding amount and quick grinding.
Furthermore, at least one pair of grinding mechanisms are arranged inside the grinding cylinder, at least one pair of grinding mechanisms are symmetrically arranged, each grinding mechanism comprises a thread pushing block, a bevel gear and a grinding wheel, the thread pushing block is slidably arranged in the grinding cylinder, one end, close to the inside of the grinding cylinder, of the thread pushing block is an inclined surface, the bevel gear is rotatably arranged on the inclined surface of the thread pushing block, a ball is arranged between the bevel gear and the thread pushing block, the grinding wheel is arranged at one end, far away from the thread pushing block, of the bevel gear, a rubber pad is arranged between the grinding wheel and the bevel gear and used for increasing friction between the grinding wheel and the bevel gear, the phenomenon that the grinding wheel rotates in the process of grinding the blank is avoided, the inclined surface on the thread pushing block is 45 degrees, the grinding wheel arranged on the inclined surface is inclined as well, when the grinding wheel grinds the blank, the outer contour of the blank is firstly ground by the end surface of the grinding wheel moving towards the blank, a point closest to the center of the grinding cylinder is arranged on a ridge line intersecting the circumferential surface and the end surface of the grinding wheel and serves as a grinding original point, and the position of the grinding original point determines the maximum diameter of the blank material after grinding.
Further, a hollow worm wheel is installed in the internal rotation of the grinding cylinder, a thread is formed in one side end face of the hollow worm wheel, a section of thread groove is formed in the thread pushing block, the thread is matched with the thread groove, a servo motor is arranged on the outer side of the grinding cylinder, a worm is installed on a motor shaft of the servo motor, a through groove is formed in the grinding cylinder, the worm is in meshing transmission with the hollow worm wheel through the hollow groove, the servo motor is electrified to drive the worm to rotate, the worm further drives the hollow worm wheel to rotate, the thread on the hollow worm wheel slides in the thread groove, the thread pushing block is pushed to slide in the grinding cylinder, and the distance between the polishing origin and the center of the grinding cylinder is adjusted to adjust the diameter size of the ground blank.
Furthermore, a double-sided toothed ring is rotatably mounted inside the grinding cylinder, tooth grooves are formed in two end faces of the double-sided toothed ring, one end of the double-sided toothed ring is in meshing transmission with the bevel gear, the double-sided toothed ring is also in sliding connection with the bevel gear, the tooth profile of the tooth grooves in the double-sided toothed ring close to the outer ring is large, the tooth profile of the tooth grooves close to the inner ring is small, the maximum tooth profile of the bevel gear is the same as the minimum tooth profile of the double-sided toothed ring, relative sliding between the double-sided toothed ring and the bevel gear is ensured, the bevel gear can also be driven to rotate by using the double-sided toothed ring after the threaded push block adjusts the grinding diameter at a moving position, a cavity is formed in one end of the cylinder wall of the grinding cylinder close to the double-sided toothed ring, an intermittent gear is rotatably arranged in the cavity and is meshed with the other end of the double-sided toothed ring, a transmission shaft is connected to one end of the intermittent gear, and a spherical sheave is arranged outside the grinding cylinder, a stepping motor is installed on the outer side of the grinding cylinder, a crank deflector rod is connected to a motor shaft of the stepping motor and is matched with the spherical grooved wheel, the grinding wheel is in a slight abrasion stage in the grinding process, loss occurs at the grinding origin after one blank material is ground, so that the diameter of the blank material ground in the later stage is large, the stepping motor is electrified to drive the crank deflector rod to rotate, the crank deflector rod drives the spherical grooved wheel to rotate by an angle, the spherical grooved wheel drives the intermittent gear to rotate by an angle through a transmission shaft, the intermittent gear further drives the double-sided toothed ring to rotate, the double-sided toothed ring drives the bevel gear to rotate, the grinding wheel rotates by a certain angle along with the bevel gear, the grinding origin which is abraded is rotated away from the original position, the grinding origin which is abraded and replaced at the position of the non-abraded ridge line forms a new grinding origin, and no position exists on the ridge line of the grinding wheel to replace the grinding origin, the grinding wheel trimming and tool resetting times of operators are reduced to a great extent, the grinding efficiency is improved, and meanwhile the grinding precision is ensured.
Furthermore, a fan is installed at one end, close to the left support frame, in the grinding cylinder, an electromagnetic disc is installed at the middle of the right support frame, a scraping brush is arranged at one end, close to the right support frame, of the grinding cylinder, the scraping brush is in contact with the electromagnetic disc, a chip discharge groove is installed on the machine tool and is arranged below the right support frame, when the grinding cylinder rotates, the fan rotates along with the grinding cylinder, the fan introduces wind into the grinding cylinder, chips ground by a grinding wheel from blank materials are blown to the electromagnetic disc by the wind, a coil is arranged in the electromagnetic disc, when current is introduced into the coil, the surface of the electromagnetic disc generates magnetism, the blown chips are adsorbed to the surface of the electromagnetic disc, the scraping brush also rotates along with the grinding cylinder, the scraping brush scrapes the ground chips adsorbed on the surface of the electromagnetic disc, the ground chips are accumulated below the electromagnetic disc, and one blank material is ground, let in reverse current in the coil earlier, make the magnetized piece of polishing demagnetize, the control coil outage afterwards, the piece of polishing drops the chip groove from the electromagnetic disk in, and a grinding section of thick bamboo prevents to polish the piece and flies to penetrate in the air, avoids polishing the piece at a grinding section of thick bamboo cohesion piece through the fan, guarantees the cleanness in the grinding section of thick bamboo.
Furthermore, servo motor and step motor set up in the outside of grinding section of thick bamboo relatively, and servo motor and step motor's relative setting ensure that grinding section of thick bamboo radial atress is balanced when rotatory, avoid grinding section of thick bamboo to take place vibrations and influence the precision of polishing.
Furthermore, a three-jaw chuck is rotatably mounted at one end of the feeding end head, which is close to the grinding cylinder, a driven belt wheel and a driving belt wheel are rotatably arranged inside the feeding end head, and the driven belt wheel and the three-jaw chuck are coaxially mounted;
install main motor in the lathe, install the integral key shaft on the motor shaft of main motor, driven pulleys sets up on the integral key shaft, is connected with the V-arrangement area between driven pulleys and the driving pulley, the setting of pressing from both sides the material end is the same with setting up of pay-off end, and main motor circular telegram drives the integral key shaft and rotates, and the integral key shaft drives the driving pulley rotation, and the driving pulley drives the driven pulley rotation through the V-arrangement area, and the driven pulley drives three-jaw chuck and rotates.
Furthermore, each driving belt wheel is internally provided with an engaging slide block in a sliding manner, the engaging slide block is matched with the spline shaft, a pushing spring is arranged between the engaging slide block and the driving belt wheel, an electromagnet is arranged on the driving belt wheel and adsorbs the engaging slide block, a three-jaw chuck on a feeding end head drives a blank to rotate, the feeding end head moves on a machine tool, the blank is ground by a grinding mechanism and then extends out of a grinding cylinder, the engaging slide block in the driving belt wheel in a clamping end head is engaged with the spline shaft under the action of the pushing spring, so that the three-jaw chuck on the clamping end head and the blank rotate at the same speed, jaws of the three-jaw chuck are static relative to the blank, the three-jaw chuck on the clamping end head clamps the blank to continuously move, the blank is drawn out, and the electromagnet of the driving belt wheel in the feeding end head is electrified to adsorb the engaging slide block, the engaging slide block is disengaged from the spline shaft, and the three-jaw chuck on the feeding end stops rotating.
Compared with the prior art, the invention has the following beneficial effects:
1. drive grinding machanism through setting up hollow worm wheel and remove, adjust the diameter size of the back blank material of polishing, drive the emery wheel through setting up two-sided ring gear and rotate, make the initial point of polishing that takes place wearing and tearing rotate from the normal position, the initial point of polishing that does not take place wearing and tearing of crest line department replacement wearing and tearing forms new initial point of polishing, there is the initial point of polishing of countless position replacement on the crest line of emery wheel, to a great extent reduces the number of times that operating personnel maintained the emery wheel and resecured the tool setting, guarantee the precision of polishing when improving polishing efficiency.
2. Through set up the fan in a grinding section of thick bamboo, the grinding utilizes the fan to let in wind in the grinding section of thick bamboo when passing through the rotation, the piece that the emery wheel was polished down from blank material is blown to the electromagnetic disc by wind, inside at the electromagnetic disc sets up the coil, after letting in the electric current in the coil, the surface production magnetism of electromagnetic disc, the piece that will blow to come adsorbs the surface of electromagnetic disc, control coil outage after the blank material is polished, the piece of polishing drops to the chip groove in from the electromagnetic disc, the grinding section of thick bamboo prevents to polish the piece and to fly to the air, avoid polishing the piece at grinding section of thick bamboo cohesion piece of gathering through the fan, guarantee the cleanness in the grinding section of thick bamboo.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the cross-sectional structure a-a of FIG. 1 according to the present invention;
FIG. 3 is a schematic view of the cross-sectional structure b-b of FIG. 1 according to the present invention;
FIG. 4 is a schematic cross-sectional view of the structure of FIG. 1 taken along line c-c according to the present invention;
FIG. 5 is a schematic cross-sectional view of d-d of FIG. 1 according to the present invention;
FIG. 6 is a schematic view of the overall internal structure of the present invention;
FIG. 7 is a schematic view showing the internal structure of the grinding cylinder of the present invention;
FIG. 8 is an enlarged, fragmentary view of region A of FIG. 6 in accordance with the present invention;
FIG. 9 is a schematic view of the connection of the spherical sheave and the toggle lever of the present invention;
FIG. 10 is a schematic view of the mounting structure of the grinding wheel portion of the present invention;
FIG. 11 is a schematic structural view of the double-sided toothed ring of the present invention;
FIG. 12 is a schematic view of the hollow worm gear of the present invention;
in the figure: 1. a machine tool; 2. a feeding end head; 3. a material clamping end; 4. a three-jaw chuck; 501. a driven pulley; 502. a driving pulley; 6. a V-belt; 7. a main motor; 8. a spline shaft; 9. a pushing spring; 10. engaging the slide block; 11. a left support frame; 12. a right support frame; 13. grinding the cylinder; 14. a rotary drum motor; 15. a power gear; 16. a fan; 17. a double-sided toothed ring; 18. a hollow worm gear; 19. a servo motor; 20. a worm; 21. a grinding wheel; 22. a bevel gear; 23. a screw thread pushing block; 24. an intermittent gear; 25. a drive shaft; 26. a spherical sheave; 27. a crank deflector rod; 28. a stepping motor; 29. an electromagnetic disk; 30. scraping and brushing; 31. a blank material.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 12, the present invention provides a technical solution: a blank bar grinding device for bearing processing production comprises a blank 31, the device comprises a machine tool 1, a chuck assembly and a grinding assembly are arranged on the machine tool 1, the chuck assembly clamps the blank 31, the chuck assembly comprises a feeding end 2 and a clamping end 3, the feeding end 2 and the clamping end 3 are arranged on the machine tool 1 in a sliding mode, the feeding end 2 and the clamping end 3 are respectively arranged at two ends of the grinding assembly, the grinding assembly grinds the blank 31, a three-jaw chuck 4 is rotatably arranged at one end, close to a grinding cylinder 13, of the feeding end 2, a driven belt wheel 501 and a driving belt wheel 502 are rotatably arranged inside the feeding end 2, the driven belt wheel 501 and the three-jaw chuck 4 are coaxially arranged, a main motor 7 is arranged in the machine tool 1, a spline shaft 8 is arranged on a motor shaft of the main motor 7, the driven belt wheel 501 is arranged on the spline shaft 8, a V-shaped belt 6 is connected between the driven belt wheel 501 and the driving belt wheel 502, the arrangement of the material clamping end 3 is the same as that of the feeding end 2, an engaging slider 10 is slidably mounted inside a driving pulley 502, the engaging slider 10 is matched with a spline shaft 8, a pushing spring 9 is mounted between the engaging slider 10 and the driving pulley 502, an electromagnet (not shown in the figure) is mounted on the driving pulley 502, the engaging slider 10 is adsorbed by the electromagnet, a main motor 7 is electrified to drive the spline shaft 8 to rotate, the spline shaft 8 drives the driving pulley 502 to rotate, the driving pulley 502 drives a driven pulley 501 to rotate through a V-shaped belt 6, the driven pulley 501 drives a three-jaw chuck 4 to rotate, the three-jaw chuck 4 on the feeding end 2 drives a blank 31 to rotate, meanwhile, the feeding end 2 moves on a machine tool 1, the blank 31 extends out of a grinding cylinder 13 after being ground by a grinding mechanism, the engaging slider 10 in the driving pulley 502 in the material clamping end 3 is engaged with the spline shaft 8 under the action of the pushing spring 9, the three-jaw chuck 4 on the material clamping end head 3 and the blank 31 rotate at the same speed, the position of the jaws of the three-jaw chuck 4 relative to the blank 31 is static, the three-jaw chuck 4 on the material clamping end head 3 clamps the blank 31 to move continuously, the blank 31 is drawn out, the electromagnet of the driving belt wheel 502 in the feeding end head 2 is electrified to adsorb the meshing slide block 10, the meshing slide block 10 is disengaged from the spline shaft 8, and the three-jaw chuck 4 on the feeding end head 2 stops rotating.
The grinding component comprises a left support frame 11, a right support frame 12, a grinding cylinder 13 and a rotary cylinder motor 14, wherein the left support frame 11, the right support frame 12 and the rotary cylinder motor 14 are all installed on the machine tool 1, the grinding cylinder 13 is rotatably installed between the left support frame 11 and the right support frame 12, a power gear 15 is connected onto a motor shaft of the rotary cylinder motor 14, a tooth socket is formed in the outer ring of the grinding cylinder 13 and is in meshing transmission with the power gear 15, the rotary cylinder motor 14 is electrified to drive the power gear 15 to rotate, the power gear 15 drives the grinding cylinder 13 to rotate through the tooth socket on the grinding cylinder 13, the grinding cylinder 13 drives the grinding mechanisms to rotate, the three-jaw chuck 4 drives the blank 31 to rotate, the rotating speed of the three-jaw chuck 4 is higher than that of the grinding cylinder 13, three grinding mechanisms are arranged inside the grinding cylinder 13 and are uniformly installed, each grinding mechanism comprises a thread push block 23, a bevel gear 22, a bevel gear 14, The grinding wheel 21, the thread push block 23 is slidably mounted in the grinding cylinder 13, one end of the thread push block 23 close to the inside of the grinding cylinder 13 is an inclined surface, the bevel gear 22 is rotatably mounted on the inclined surface of the thread push block 23, a ball is arranged between the bevel gear 22 and the thread push block 23, the grinding wheel 21 is mounted at one end of the bevel gear 22 far away from the thread push block 23, a rubber pad is mounted between the grinding wheel 21 and the bevel gear 22 and used for increasing friction force between the grinding wheel 21 and the bevel gear 22 so as to avoid the rotation of the grinding wheel 21 in the process of grinding the blank 31, the inclined surface on the thread push block 23 is 45 degrees, so that the grinding wheel 21 mounted on the inclined surface is inclined as well, when the grinding wheel 21 grinds the blank 31, the end surface of the grinding wheel 21 moving towards the blank 31 firstly polishes the outer contour of the blank 31, a point closest to the center of the grinding cylinder 13 exists on a ridge line where the circumferential surface of the grinding wheel 21 and the end surface intersect is a grinding origin, this point position determines the sanding diameter for the blank 31.
A hollow worm wheel 18 is rotatably arranged in the grinding cylinder 13, a thread is arranged on one side end face of the hollow worm wheel 18, a section of thread groove is arranged on a thread pushing block 23, the thread is matched with the thread groove, a servo motor 19 is arranged on the outer side of the grinding cylinder 13, a worm 20 is arranged on a motor shaft of the servo motor 19, a through groove is arranged on the grinding cylinder 13, the worm 20 is meshed with the hollow worm wheel 18 for transmission through the through groove, a double-sided toothed ring 17 is rotatably arranged in the grinding cylinder 13, tooth grooves are respectively arranged on two end faces of the double-sided toothed ring 17, one end of the double-sided toothed ring 17 is meshed with a bevel gear 22 for transmission, the double-sided toothed ring 17 is also in sliding connection with the bevel gear 22, a cavity is arranged at one end, close to the double-sided toothed ring 17, of the cylinder wall of the grinding cylinder 13, an intermittent gear 24 is rotatably arranged in the cavity, the intermittent gear 24 is meshed with the other end of the double-sided toothed ring 17, a transmission shaft 25 is connected on the intermittent gear 24, one end of the transmission shaft 25 is connected with a spherical grooved wheel 26, the spherical grooved wheel 26 is arranged outside the grinding cylinder 13, a stepping motor 28 is arranged on the outer side of the grinding cylinder 13, a crank driving lever 27 is connected to a motor shaft of the stepping motor 28, the crank driving lever 27 is matched with the spherical grooved wheel 26, and the servo motor 19 and the stepping motor 28 are oppositely arranged on the outer side of the grinding cylinder 13, so that radial stress balance of the grinding cylinder 13 during rotation is ensured.
The servo motor 19 is electrified to drive the worm 20 to rotate, the worm 20 further drives the hollow worm wheel 18 to rotate, threads on the hollow worm wheel 18 slide in a thread groove, a thread push block 23 is pushed to slide in the grinding cylinder 13, the distance between the grinding origin and the center of the grinding cylinder 13 is adjusted, the diameter of the ground blank 31 is adjusted, the stepping motor 28 is electrified to drive the crank shift lever 27 to rotate, the crank shift lever 27 shifts the spherical sheave 26 to rotate for an angle, the spherical sheave 26 drives the intermittent gear 24 to rotate for an angle through the transmission shaft 25, the intermittent gear 24 further drives the double-sided toothed ring 17 to rotate, the double-sided toothed ring 17 drives the bevel gear 22 to rotate, the grinding wheel 21 rotates for a certain angle along with the rotation, the worn grinding origin rotates away from the original position, the worn ridge which is not worn replaces the worn grinding origin to form a new grinding origin, and the times of dressing of the grinding wheel 21 and resetting by an operator are reduced, the polishing precision is ensured while the polishing efficiency is improved.
A fan 16 is arranged at one end of the grinding cylinder 13 close to the left support frame 11, an electromagnetic disc 29 is arranged in the middle of the right support frame 12, a scraping brush 30 is arranged at one end of the grinding cylinder 13 close to the right support frame 12, the scraping brush 30 is in contact with the electromagnetic disc 29, a chip discharge groove is arranged on the machine tool 1 and is arranged below the right support frame 12, the fan 16 rotates along with the grinding cylinder 13 when the grinding cylinder 13 rotates, the fan 16 introduces wind into the grinding cylinder 13, chips ground by the grinding wheel 21 from a blank 31 are blown to the electromagnetic disc 29 by wind, a coil is arranged inside the electromagnetic disc 29, when current is introduced into the coil, the surface of the electromagnetic disc 29 generates magnetism, the chips blown by the wind are adsorbed to the surface of the electromagnetic disc 29, the scraping brush 30 also rotates along with the grinding cylinder 13, the scraping brush 30 scrapes the ground chips adsorbed on the surface of the electromagnetic disc 29, so that the chips are ground and accumulated below the electromagnetic disc 29, after a root hair stock 31 polishes, let in reverse current in the coil earlier, make the magnetized piece of polishing demagnetize, control coil outage afterwards, the piece of polishing drops the chip groove from electromagnetic disk 29 in, and grinding section of thick bamboo 13 prevents to polish the piece and flies to penetrate in the air, avoids polishing the piece through fan 16 and gathers the caking in grinding section of thick bamboo 13, guarantees the cleanness in the grinding section of thick bamboo 13.
The working principle of the invention is as follows: when using this device to polish carrying out bearing steel bar material, operating personnel will be on blank 31 clamping three-jaw chuck 4 on the pay-off end 2 earlier, install three emery wheel 21 of finishing in grinding section of thick bamboo 13, drive worm 20 through controlling servo motor 19 circular telegram and rotate, worm 20 and then drive hollow worm wheel 18 and rotate, screw thread on the hollow worm wheel 18 slides in the thread groove, promote screw ejector pad 23 and slide in grinding section of thick bamboo 13, adjust the interval of original point of polishing apart from grinding section of thick bamboo 13 center, adjust the size of the diameter of polishing.
After debugging is finished, an operator starts the main motor 7, the main motor 7 is electrified to drive the spline shaft 8 to rotate, the spline shaft 8 drives the driving belt pulley 502 to rotate, the driving belt pulley 502 drives the driven belt pulley 501 to rotate through the V-shaped belt 6, the driven belt pulley 501 drives the three-jaw chuck 4 to rotate, the three-jaw chuck 4 on the feeding end 2 drives the blank 31 to rotate, meanwhile, the feeding end 2 moves on the machine tool 1 to send the blank 31 into the grinding cylinder 13, the rotary cylinder motor 14 is electrified to drive the power gear 15 to rotate, the power gear 15 drives the grinding cylinder 13 to rotate through the tooth grooves on the grinding cylinder 13, the grinding cylinder 13 drives the grinding mechanism to rotate, the three-jaw chuck 4 drives the blank 31 to rotate while rotating, the three grinding wheels 21 grind the profile of the blank 31 simultaneously, and the fan 16 rotates along with the grinding cylinder 13 while the grinding cylinder 13 rotates, the fan 16 blows air into the grinding cylinder 13, the chips ground by the grinding wheel 21 from the blank 31 are blown to the electromagnetic disc 29 by the air, the electromagnetic disc 29 is internally provided with a coil, when current is introduced into the coil, the surface of the electromagnetic disc 29 generates magnetism, fragments blown by wind are adsorbed to the surface of the electromagnetic disc 29, the scraping brush 30 also rotates along with the grinding cylinder 13, the scraping brush 30 scrapes the grinding fragments adsorbed to the surface of the electromagnetic disc 29, the grinding fragments are accumulated below the electromagnetic disc 29, after a blank material 31 is ground, reverse current is introduced into the coil firstly to demagnetize the magnetized grinding fragments, then the coil is controlled to be powered off, the grinding fragments fall into a chip removal groove from the electromagnetic disc 29, the grinding cylinder 13 prevents the grinding fragments from flying into the air, the blowing by the fan 16 prevents the grinding chips from accumulating in the grinding drum 13 and ensures cleanliness in the grinding drum 13.
The blank 31 extends out of the grinding cylinder 13 after being ground by the grinding mechanism, the engaging slide block 10 in the driving pulley 502 in the clamping end head 3 is engaged with the spline shaft 8 under the action of the pushing spring 9, so that the three-jaw chuck 4 on the clamping end head 3 and the blank 31 rotate at the same speed, the jaws of the three-jaw chuck 4 are static relative to the blank 31, the three-jaw chuck 4 on the clamping end head 3 clamps the blank 31 to move continuously, the blank 31 is drawn out, the electromagnet of the driving pulley 502 in the feeding end head 2 is electrified to adsorb the engaging slide block 10, the engaging slide block 10 is disengaged from the spline shaft 8, the three-jaw chuck 4 on the feeding end head 2 stops rotating until the grinding of one blank 31 is finished, the main motor 7 stops rotating, an operator takes the ground blank 31 off the clamping end head 3 and continues to grind the next blank 31, and before the grinding, the crank driving lever 27 is electrified by the stepping motor 28, the crank deflector rod 27 stirs the spherical grooved pulley 26 to rotate by an angle, the spherical grooved pulley 26 drives the intermittent gear 24 to rotate by an angle through the transmission shaft 25, the intermittent gear 24 further drives the double-sided toothed ring 17 to rotate, the double-sided toothed ring 17 drives the bevel gear 22 to rotate, the grinding wheel 21 rotates by a certain angle along with the rotation, the worn grinding origin is rotated away from the original position, the worn ridge line part is not worn to replace the worn grinding origin to form a new grinding origin, and after replacement is finished, the next blank 31 can be ground.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a blank bar grinding device for bearing processing production, includes blank (31), its characterized in that: the device includes lathe (1), be provided with chuck subassembly and grinding subassembly on lathe (1), chuck subassembly carries out the centre gripping to blank material (31), and chuck subassembly includes pay-off end (2), presss from both sides material end (3), pay-off end (2) and press from both sides material end (3) and slide and set up on lathe (1), and pay-off end (2) and pressing from both sides material end (3) and be located the both ends of grinding subassembly respectively, the grinding subassembly grinds blank material (31).
2. The blank bar stock grinding device for bearing processing production as claimed in claim 1, wherein: the grinding assembly comprises a left support frame (11), a right support frame (12), a grinding cylinder (13) and a rotary cylinder motor (14), wherein the left support frame (11), the right support frame (12) and the rotary cylinder motor (14) are all installed on the machine tool (1), the grinding cylinder (13) is rotatably installed between the left support frame (11) and the right support frame (12), a power gear (15) is connected to a motor shaft of the rotary cylinder motor (14), a tooth groove is formed in an outer ring of the grinding cylinder (13), and the tooth groove is meshed with the power gear (15) for transmission.
3. The device for grinding the blank bar stock for the bearing processing production as claimed in claim 2, characterized in that: the grinding cylinder is characterized in that at least one pair of grinding mechanisms are arranged inside the grinding cylinder (13), at least one pair of grinding mechanisms are symmetrically arranged, each grinding mechanism comprises a thread pushing block (23), a bevel gear (22) and a grinding wheel (21), the thread pushing blocks (23) are slidably arranged in the grinding cylinder (13), one end, close to the inside of the grinding cylinder (13), of each thread pushing block (23) is an inclined plane, the bevel gear (22) is rotatably arranged on the inclined plane of each thread pushing block (23), balls are arranged between the bevel gear (22) and the thread pushing blocks (23), the grinding wheel (21) is arranged at one end, far away from the thread pushing blocks (23), of the bevel gear (22), and a rubber pad is arranged between the grinding wheel (21) and the bevel gear (22).
4. The blank bar stock grinding device for bearing processing production as claimed in claim 3, wherein: hollow worm wheel (18) are installed in the internal rotation of grinding section of thick bamboo (13), set up the screw thread on one side terminal surface of hollow worm wheel (18), set up one section thread groove on screw thread ejector pad (23), the screw thread cooperatees with the thread groove, the outside of grinding section of thick bamboo (13) is provided with servo motor (19), install worm (20) on the motor shaft of servo motor (19), logical groove has been seted up on grinding section of thick bamboo (13), worm (20) are through empty groove and hollow worm wheel (18) meshing transmission.
5. The blank bar stock grinding device for bearing processing production as claimed in claim 3, wherein: a double-sided toothed ring (17) is rotatably arranged in the grinding cylinder (13), tooth grooves are formed in two end faces of the double-sided toothed ring (17), one end of the double-sided toothed ring (17) is in meshing transmission with a bevel gear (22), the double-sided toothed ring (17) is also in sliding connection with the bevel gear (22), a cavity is formed in one end, close to the double-sided toothed ring (17), of the cylinder wall of the grinding cylinder (13), an intermittent gear (24) is rotatably arranged in the cavity, the intermittent gear (24) is meshed with the other end of the double-sided toothed ring (17), a transmission shaft (25) is connected onto the intermittent gear (24), one end of the transmission shaft (25) is connected with a spherical grooved pulley (26), the spherical grooved pulley (26) is arranged outside the grinding cylinder (13), a stepping motor (28) is arranged on the outer side of the grinding cylinder (13), and a crank deflector rod (27) is connected onto a motor shaft of the stepping motor (28), the crank driving lever (27) is matched with the spherical grooved wheel (26).
6. The blank bar stock grinding device for bearing processing production as claimed in claim 2, wherein: fan (16) are installed to the one end that is close to left strut (11) in grinding section of thick bamboo (13), the mid-mounting of right side strut (12) has electromagnetic disc (29), and the one end setting that grinding section of thick bamboo (13) is close to right strut (12) scrapes brush (30), scrape brush (30) and contact with electromagnetic disc (29), install the chip groove on lathe (1), the chip groove sets up the below at right strut (12).
7. The blank bar stock grinding device for bearing processing production as claimed in claim 4 or 5, wherein: the servo motor (19) and the stepping motor (28) are arranged on the outer side of the grinding cylinder (13) oppositely.
8. The blank bar stock grinding device for bearing processing production as claimed in claim 1, wherein: a three-jaw chuck (4) is rotatably mounted at one end, close to the grinding cylinder (13), of the feeding end head (2), a driven belt wheel (501) and a driving belt wheel (502) are rotatably arranged inside the feeding end head (2), and the driven belt wheel (501) and the three-jaw chuck (4) are coaxially mounted;
install main motor (7) in lathe (1), install integral key shaft (8) on the motor shaft of main motor (7), driven pulley (501) set up on integral key shaft (8), are connected with V-arrangement area (6) between driven pulley (501) and driving pulley (502), the setting of pressing from both sides material end (3) is the same with the setting of pay-off end (2).
9. The device for grinding the blank bar stock for the bearing processing production as claimed in claim 8, characterized in that: every the inside slidable mounting of driving pulley (502) has meshing slider (10), meshing slider (10) cooperate with integral key shaft (8), install between meshing slider (10) and driving pulley (502) and push away spring (9), install the electro-magnet on driving pulley (502), the electro-magnet adsorbs meshing slider (10).
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| CN202210431858.8A CN114800070B (en) | 2022-04-22 | 2022-04-22 | A blank bar grinding device for bearing processing production |
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| CN202210431858.8A CN114800070B (en) | 2022-04-22 | 2022-04-22 | A blank bar grinding device for bearing processing production |
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Cited By (1)
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| CN116276346A (en) * | 2023-01-13 | 2023-06-23 | 中山市誉胜智能科技有限公司 | Grinding device for guide rail surface of numerical control machine tool body |
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| CN114800070B (en) | 2023-02-10 |
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