CN111941284A - Roller ring composite plane grinding and finishing device - Google Patents
Roller ring composite plane grinding and finishing device Download PDFInfo
- Publication number
- CN111941284A CN111941284A CN202010730412.6A CN202010730412A CN111941284A CN 111941284 A CN111941284 A CN 111941284A CN 202010730412 A CN202010730412 A CN 202010730412A CN 111941284 A CN111941284 A CN 111941284A
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- grinding
- roller
- fixed
- tensioning
- rubber wheel
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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
- B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
- B24B53/017—Devices or means for dressing, cleaning or otherwise conditioning lapping tools
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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
- B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
- B24B53/003—Devices or means for dressing or conditioning abrasive surfaces using at least two conditioning tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a grinding and finishing device for a composite plane of a roll collar, which comprises a roll supporting disc and a stop rod, wherein a motor is fixed on the stop rod, and an output shaft of the motor and the stop rod are in the same direction; a central bevel gear is fixed on the output shaft of the motor, more than three coping units are connected on the central bevel gear in a meshing way, and the coping units are arranged on the roller supporting disc. The grinding roller pairs are driven by the motor and the grinding roller pairs are used for grinding the working surface of the grinding disc at the same time, the cylindrical roller pairs are used for grinding the working surface of the grinding disc and the grinding ring pairs are used for grinding the working surface of the grinding disc at the same time, the rotation of the grinding roller pairs and the revolution of the grinding roller pairs around the center of the grinding ring are carried out at the same time, high flatness precision is kept all the time, the machining precision of equipment is improved, the consistency of the flatness precision of the ground workpiece is improved, the grinding disc is free of off-line finishing during use, and the use complexity of the equipment is reduced.
Description
Technical Field
The invention belongs to the technical field of ultra-precision machining, and relates to a grinding and finishing device for a roller ring composite plane.
Background
The grinding machine is a grinding machine for grinding the surface of a workpiece by using a grinding tool coated with or embedded with an abrasive, and is used for grinding high-precision planes, internal and external cylindrical surfaces, conical surfaces, spherical surfaces, threaded surfaces and other molded surfaces in the workpiece. Currently, the flat grinder is applied more frequently, and is mainly used for grinding single side of materials.
When the plane grinder is used, the working surface of the rotary grinding disc and a workpiece to be ground are unevenly worn due to interaction, so that the working surface of the grinding disc is uneven. The traditional single-plane grinding machine adopts a grinding ring on the machine to automatically rotate to finish the working surface of the grinding disc, so that the working surface of the grinding disc is ensured to be integrally smooth, and the normal service time of the grinding disc is prolonged. However, since the working surface of the grinding ring-trimming grinding disc belongs to a two-surface opposite grinding mode, the working surface of the grinding disc and the working surface of the grinding ring cannot be kept planar all the time in principle, and are influenced by grinding motion and various random factors in the grinding process, and the more general situation tends to a pair of spherical crown surfaces, the working surface of the grinding disc can be gradually concave inwards or convex outwards after the grinding disc is used for a long time, so that the grinding disc loses flatness accuracy. When the flatness error of the working surface of the grinding disc exceeds the allowable value, the grinding disc is detached off-line to correct the flatness of the working surface, and then the grinding disc is returned to the grinding machine for use. Not only takes time and labor, but also the precision of the ground workpiece is not stable enough and the error fluctuation is large.
Disclosure of Invention
The invention aims to provide a roller ring composite plane grinding and finishing device, which solves the problems that in the existing single-plane grinding technology, the working surface of a grinding disc gradually loses flatness precision in use, so that the precision of a ground workpiece is not stable enough, the error fluctuation is large, and the working surface of the grinding disc needs to be periodically dismounted and finished off line.
The technical scheme adopted by the invention is that the roll ring composite plane grinding and finishing device comprises a roll supporting disc and a stop rod, wherein a power unit is fixed on the stop rod, and an output shaft of the power unit and the stop rod are in the same direction; a central bevel gear is fixed on an output shaft of the power unit, more than three transmission units are connected to the central bevel gear in a meshed mode, the transmission units are connected with polishing units, and the polishing units are arranged on a roller supporting disc;
the transmission unit comprises a branch bevel gear in meshed connection with the central bevel gear, the branch bevel gear is fixed on the radial transmission shaft, and a first belt wheel is fixed on the radial transmission shaft;
the grinding unit comprises a grinding roller set, the grinding roller set comprises a plurality of cylindrical rollers which are parallel to each other in axis, mutually contact with each other, have certain positive pressure and relatively rotate, an opening matched with the grinding roller set is formed in a roller supporting disc, and two ends of the grinding roller set are fixed on the roller supporting disc; a rubber wheel is arranged above the grinding roller group, the rubber wheel is contacted with the surface of any one grinding roller, the rubber wheel is fixed with a roller supporting disc through a rubber wheel supporting seat, and a first belt wheel is connected with the rubber wheel to transmit power;
the grinding roller sets of the grinding units are uniformly distributed along the circumference relative to the center of the roller supporting disc.
The invention is also characterized in that:
the branch bevel gears of the coping units are uniformly arranged around the central bevel gear.
The number of the grinding units is 3, and the grinding roller sets are uniformly distributed around the central bevel gear in an angle of 120 degrees.
The number of the grinding rollers of each grinding unit is 2.
The rubber wheel is fixed on the rubber wheel shaft, the rubber wheel shaft is fixed with the rubber wheel supporting seat through a bearing, a second belt wheel is installed at one end of the rubber wheel shaft, and the first belt wheel is in transmission connection with the second belt wheel through a belt.
The rubber wheel shaft is arranged in parallel with the radial transmission shaft, and the first belt wheel and the second belt wheel are arranged in front and at the back.
And a tensioning unit is arranged between the first belt wheel and the second belt wheel and positioned at the position of the roller supporting disc, and the tensioning unit is used for tensioning the belt.
The tensioning unit comprises a tensioning frame base, the tensioning frame base is fixed on the roller supporting disc, a first tensioning rod in the vertical direction is fixed on the tensioning frame base, a switching frame capable of rotating around the first tensioning rod is fixed on the first tensioning rod, a second tensioning rod perpendicular to the first tensioning rod is fixed on the switching frame, a tensioning wheel is fixed on the second tensioning rod, and the first belt wheel, the second belt wheel and the tensioning wheel are located on the same plane.
The roller supporting disc is fixed with a speed reducer fixing seat, and the radial transmission shaft is fixed on the speed reducer fixing seat through a bearing.
The grinding rollers at the outer sides of the adjacent grinding units are connected through springs to provide positive pressure between the grinding rollers.
The power unit comprises a motor fixed on the stop rod, and the motor is connected with the speed reducer.
And a slip ring is also fixed on the stop rod and is positioned above the motor.
The self-grinding device has the advantages that the self-grinding of the plurality of grinding rollers is controlled by the motor, so that the grinding rollers are contacted with the grinding disc under the condition of keeping the self-precision, the grinding disc, the grinding ring and the plurality of pairs of rollers are automatically mutually ground, and the precision of the grinding disc is improved. Therefore, when the workpiece is ground, the steps of manual participation in the process are saved, the labor cost is reduced, the efficiency of the production line and the yield of the product are improved, the operation method is simple and convenient, and the practicability is high.
Drawings
FIG. 1 is a schematic structural diagram of a roll collar composite flat grinding and finishing device according to the present invention;
FIG. 2 is a schematic structural diagram of a power unit and a transmission unit of the roll collar composite plane grinding and finishing device of the invention;
FIG. 3 is a schematic structural diagram of a grinding unit and a transmission unit of the roll collar composite plane grinding and finishing device of the invention;
FIG. 4 is a schematic diagram of a roll collar composite flat lapping and conditioning apparatus of the present invention;
FIG. 5 is a schematic diagram of an on-machine embodiment of a roll collar composite flat abrasive finishing device of the present invention.
In the figure, 1, a roller supporting disc, 2, a stop rod, 3, a power unit, 3.1, a motor, 3.2, a speed reducer, 4, a central bevel gear, 5, a branch bevel gear, 6, a radial transmission shaft, 7, a first belt wheel, 8, a grinding roller, 9, a rubber wheel, 10, a rubber wheel supporting seat, 11, a rubber wheel shaft, 12, a second belt wheel, 13, a tensioning frame base, 14, a first tensioning rod, 15, an adapter frame, 16, a second tensioning rod, 17, a tensioning wheel, 18, a speed reducer fixing seat, 19, a spring, 20, a sliding ring, 21, a grinding disc, 22, a supporting arm, 23, a grinding ring, 24, a fixing arm, 25, a grinding workbench, 26, a pressure device and 27 a pressure plate are arranged.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in figure 1, the roller ring composite plane grinding and finishing device comprises a roller supporting disc 1 and a stop rod 2, wherein a power unit 3 is fixed on the stop rod 2. As shown in fig. 2, the power unit 3 includes a motor 3.1 fixed to the stopper rod 2, and the motor 3.1 is connected to a decelerator 3.2. The output shaft of the speed reducer 3.2 and the stop rod 2 are in the same direction; a central bevel gear 4 is fixed on an output shaft of the speed reducer 3.2, more than three transmission units are connected to the central bevel gear 4 in a meshed manner, the transmission units are connected with grinding units, and the grinding units are arranged on the roller supporting disc 1; a slip ring 20 is also fixed on the stop rod 2, and the slip ring 20 is positioned above the motor 3.1.
As shown in fig. 2 and 3, the transmission unit includes a branch bevel gear 5 engaged with the central bevel gear 4, the branch bevel gear 5 is fixed on a radial transmission shaft 6, a reducer fixing seat 18 is fixed on the roller supporting disc 1, the radial transmission shaft 6 is fixed on the reducer fixing seat 18 through a bearing, and a first pulley 7 is fixed on the radial transmission shaft 6. The number of the grinding units is 3, each grinding unit comprises a grinding roller set, each grinding roller set comprises a plurality of cylindrical rollers 8 which are parallel to each other in axis, are in contact with each other, have a certain positive pressure and rotate relatively, each grinding roller set in the embodiment comprises 2 grinding rollers 8, the grinding rollers 8 are vertically arranged, an opening matched with the grinding rollers 8 is formed in the roller supporting disc 1, and two ends of each grinding roller 8 are fixed on the roller supporting disc 1; a rubber wheel 9 is arranged above the coping roller 8, the rubber wheel 9 is in contact with the surface of the coping roller 8, the rubber wheel 9 is fixed with the roller supporting disc 1 through a rubber wheel supporting seat 10, and the first belt wheel 7 is connected with the rubber wheel 7 to transmit power; the grinding roller sets are uniformly distributed around the central bevel gear 4 in a 120-degree manner and are circularly arranged around the stop rod 2. Wherein, the number of the coping rollers 8 in each coping unit is 2, and 3 branch bevel gears 5 are uniformly arranged around the central bevel gear 4. The sharpening rollers 8 outside the adjacent sharpening units are connected by a spring 19.
In addition, the rubber wheel 9 is fixed on a rubber wheel shaft 11, the rubber wheel shaft 11 is fixed with a rubber wheel supporting seat 10 through a bearing, a second belt wheel 12 is installed at one end of the rubber wheel shaft 11, and the first belt wheel 7 is in transmission connection with the second belt wheel 12 through a belt. The rubber wheel shaft 11 is arranged in parallel with the transmission shaft 6, and the first belt wheel 7 and the second belt wheel 12 are arranged in front of and behind.
Each sharpening unit is provided with a tensioning unit arranged between the first pulley 7 and the second pulley 12 in the position of the roller-supporting disc 1. The tensioning unit comprises a tensioning frame base 13, the tensioning frame base 13 is fixed on the roller supporting disc 1, a first tensioning rod 14 in the vertical direction is fixed on the tensioning frame base 13, a switching frame 15 capable of rotating 14 around the first tensioning rod is fixed on the first tensioning rod 14, a second tensioning rod 16 perpendicular to the first tensioning rod 14 is fixed on the switching frame 15, a tensioning wheel 17 is fixed on the second tensioning rod 16, and the first belt wheel 7, the second belt wheel 12 and the tensioning wheel 17 are located on the same plane.
Three openings with equal angles are formed in the roller supporting disc 1, the size of each opening is matched with the grinding roller 8, and the grinding roller 8 can rotate after being fixed. The grinding rollers 8 are placed in the openings, the grinding rollers 8 of each opening are arranged in pairs, the two shafts are parallel, two side faces of each grinding roller are in close contact, and each grinding roller 8 is fixed on the roller supporting disc 1 through a respective shaft. Meanwhile, spring hooks are arranged at two ends of the grinding rollers 8 at the outer sides of the adjacent grinding units, and the grinding rollers at the outer sides are sequentially connected through springs 19, so that extrusion force is applied to the grinding rollers 8 at the inner sides, and the grinding rollers 8 in each grinding roller group are abutted together.
The conventional flat grinder, which adds a dressing ring to repair the surface of the grinding disk 21, may cause the surface of the grinding disk 21 to have spherical concavity resulting in surface unevenness. The present invention addresses this problem, using the principle shown in fig. 4. Only three or more groups of grinding roller sets are introduced on the grinding disc 21, each grinding roller set consists of two grinding rollers 8, the grinding rollers 8 which are ground oppositely and the revolving grinding roller sets are combined to carry out online grinding on the working surface of the grinding disc 21, the grinding roller sets are uniformly distributed along the circumference, the grinding roller sets and the grinding disc 21 move relatively, the grinding rollers 8 in the grinding roller sets rotate relatively and revolve around the center of a grinding ring together, so that the surface of the grinding disc 21 is conical; when the grinding ring and the grinding roller 8 act simultaneously, the spherical concave surface and the conical surface on the grinding disc 8 can be offset, and the concave phenomenon is solved. Since the dressing rollers 8 grind in pairs, the surface of the polishing disk 21 is smoothed while maintaining its accuracy, thereby achieving the effect of dressing the polishing disk.
The stopper rod 2 is provided with a slip ring 20 in which a wire can be arranged to avoid twisting, thereby supplying power to the motor 3. The motor 3 is a direct current driving motor, the motor 3 drives a central bevel gear 4 connected below, meanwhile, the central bevel gear 4 transmits power to the branch bevel gears 5, the branch bevel gears 5 drive a first belt pulley 7 on the branch bevel gears to rotate through a radial transmission shaft 6, and then a second belt pulley 12 connected with the first belt pulley 7 through a belt is driven to rotate; in order to prevent the belt from loosening and affecting the transmission effect, the belt is tensioned by arranging a tension pulley 17; because the second belt wheel 12 is coaxially connected with the rubber wheel 9, the rubber wheel 11 also moves when the second belt wheel 12 rotates; the grinding roller 8 is in contact with the surface of the rubber wheel 9, and the grinding roller 8 rotates along with the rubber wheel to finish the action of repairing the grinding disc.
As shown in fig. 5, the device is positioned above a grinding disc 21 of a machine tool, and the position of the rotation center of the device on the machine tool is limited by a supporting arm 22; stop rod 2, attached to stationary arm 24, limits the rotation of the slip ring 20 housing to facilitate power to power assembly 3. The grinding disc 21 is rotated, and two grinding rings 23 are additionally arranged above the grinding disc and the position of the center of the grinding ring on the machine tool is limited by corresponding supporting arms 22, a workpiece to be ground is placed in the two grinding rings, grinding pressure is provided by a pressure device 26 and a pressure plate 27, and the pressure device 26 (a cylinder in the figure) is fixed on a grinding worktable 25 through a fixing arm 24. The dressing of the grinding disc 21 is realized by two dressing rings for placing workpieces together with a roll ring composite dressing device.
The device of the invention simultaneously carries out the double grinding among a plurality of pairs of grinding rollers 8, the grinding of the upper surface of a grinding disc 21 by the grinding rollers 8 and the grinding of the upper surface of the grinding disc 21 by a grinding ring, simultaneously carries out the rotation of the grinding rollers 8 and the revolution of the whole grinding roller group consisting of the grinding rollers around the center of the grinding ring, always keeps the high flatness precision of the upper surface of the grinding disc 21, thereby improving the processing precision of equipment, improving the consistency of the flatness precision of a ground workpiece, and the grinding disc does not need to be detached for off-line finishing in the using process.
Claims (10)
1. The grinding and finishing device for the composite plane of the roll ring is characterized by comprising a roll supporting disc (1) and a stop rod (2), wherein a power unit (3) is fixed on the stop rod (2), and an output shaft of the power unit (3) is in the same direction as that of the stop rod (2); a central bevel gear (4) is fixed on an output shaft of the power unit (3), more than three transmission units are connected to the central bevel gear (4) in a meshed manner, the transmission units are connected with a grinding unit, and the grinding unit is arranged on the roller supporting disc (1);
the transmission unit comprises a branch bevel gear (5) in meshed connection with the central bevel gear (4), the branch bevel gear (5) is fixed on a radial transmission shaft (6), and a first belt wheel (7) is fixed on the radial transmission shaft (6);
the grinding unit comprises a grinding roller set, the grinding roller set comprises a plurality of cylindrical rollers (8) which are parallel to each other in axis, mutually contact with each other, have certain positive pressure and relatively rotate, an opening matched with the grinding roller set is formed in the roller supporting disc (1), and two ends of the grinding roller set are fixed on the roller supporting disc (1); a rubber wheel (9) is arranged above the coping roller group, the rubber wheel (9) is in contact with the surface of any coping roller (8), the rubber wheel (9) is fixed with the roller supporting disc (1) through a rubber wheel supporting seat (10), and the first belt wheel (7) is connected with the rubber wheel (9) to transmit power;
the grinding roller sets of the grinding units are uniformly distributed along the circumference relative to the center of the roller supporting disc (1).
2. A roll-collar composite flat grinding and finishing device according to claim 1, characterized in that the branch bevel gears (5) of the grinding unit are evenly arranged around the central bevel gear (4).
3. The roll collar composite plane grinding and finishing device according to claim 1, characterized in that the rubber wheel (9) is fixed on a rubber wheel shaft (11), the rubber wheel shaft (11) is fixed with a rubber wheel supporting seat (10) through a bearing, one end of the rubber wheel shaft (11) is provided with a second belt wheel (12), and the first belt wheel (7) and the second belt wheel (12) are in transmission connection through a belt.
4. A roller ring composite plane grinding and finishing device according to claim 3, characterized in that the rubber wheel shaft (11) is arranged in parallel with the transmission shaft (6), and the first belt wheel (7) and the second belt wheel (12) are arranged in front of and behind each other.
5. A roller ring composite flat grinding and finishing device according to claim 3, characterized in that a tensioning unit for tensioning a belt is arranged between the first pulley (7) and the second pulley (12) at the position of the roller supporting disc (1).
6. A roller-ring composite plane grinding and finishing device according to claim 5, characterized in that said tensioning unit comprises a tensioning frame base (13), said tensioning frame base (13) is fixed on the roller supporting disc (1), a first tensioning rod (14) in vertical direction is fixed on said tensioning frame base (13), an adapter frame (15) capable of rotating around the first tensioning rod (14) is fixed on said first tensioning rod (14), a second tensioning rod (16) perpendicular to the first tensioning rod (14) is fixed on said adapter frame (15), a tensioning wheel (17) is fixed on said second tensioning rod (16), and said first pulley (14), second pulley (16) and tensioning wheel (17) are in the same plane.
7. A roller ring composite plane grinding and finishing device according to claim 1, characterized in that a reducer fixing seat (18) is fixed on the roller supporting disc (1), and the transmission shaft (6) is fixed on the reducer fixing seat (1) through a bearing.
8. A roll-ring composite flat grinding and dressing device according to claim 1, characterized in that the dressing rollers (8) outside the adjacent dressing units are connected by springs (18) to provide positive pressure between the dressing rollers.
9. A roller ring composite plane grinding and finishing device according to claim 1, characterized in that the number of grinding units is 3, and the grinding roller sets are uniformly distributed at 120 ° around the central bevel gear (4).
10. A roll-ring composite flat grinding and finishing device according to claim 1, characterized in that the number of the grinding rolls (8) of the grinding unit is 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010730412.6A CN111941284B (en) | 2020-07-27 | 2020-07-27 | Roller ring composite plane grinding and finishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010730412.6A CN111941284B (en) | 2020-07-27 | 2020-07-27 | Roller ring composite plane grinding and finishing device |
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| Publication Number | Publication Date |
|---|---|
| CN111941284A true CN111941284A (en) | 2020-11-17 |
| CN111941284B CN111941284B (en) | 2022-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010730412.6A Active CN111941284B (en) | 2020-07-27 | 2020-07-27 | Roller ring composite plane grinding and finishing device |
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| CN (1) | CN111941284B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113319739A (en) * | 2021-05-06 | 2021-08-31 | 西安理工大学 | Trimming mechanism for realizing self-trimming abrasive disk of single-plane grinding machine |
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| CN108340271A (en) * | 2018-04-18 | 2018-07-31 | 海宁市三鑫剃须刀剪有限公司 | A kind of automatic plane grinder |
| CN208084147U (en) * | 2018-03-13 | 2018-11-13 | 上海致领半导体科技发展有限公司 | A kind of conditioner discs of abrasive disk |
| CN109012996A (en) * | 2018-07-16 | 2018-12-18 | 张明明 | A kind of new-type medicinal material grinding screening plant |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1047806A (en) * | 1964-07-04 | 1966-11-09 | Churchill Gear Machines Ltd | Method of and arrangement for trimming grinding wheels |
| CN1501851A (en) * | 2000-11-28 | 2004-06-02 | ���ء��߶�ķ˹�� | Method and device for producing molds for toothed belts |
| CN102528643A (en) * | 2010-12-30 | 2012-07-04 | 中芯国际集成电路制造(上海)有限公司 | Chemical mechanical polishing equipment and polishing unit thereof |
| CN102229106A (en) * | 2011-07-11 | 2011-11-02 | 湖南宇环同心数控机床有限公司 | Multi-axis driving device for double-faced grinding machine |
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| CN113319739A (en) * | 2021-05-06 | 2021-08-31 | 西安理工大学 | Trimming mechanism for realizing self-trimming abrasive disk of single-plane grinding machine |
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| CN111941284B (en) | 2022-01-07 |
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