CN114800079B - Bearing convexity roller grinding and polishing method for flexible continuous production - Google Patents
Bearing convexity roller grinding and polishing method for flexible continuous production Download PDFInfo
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- CN114800079B CN114800079B CN202210472150.7A CN202210472150A CN114800079B CN 114800079 B CN114800079 B CN 114800079B CN 202210472150 A CN202210472150 A CN 202210472150A CN 114800079 B CN114800079 B CN 114800079B
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000005498 polishing Methods 0.000 title claims abstract description 22
- 238000010924 continuous production Methods 0.000 title claims abstract description 17
- 238000013519 translation Methods 0.000 claims abstract description 52
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 238000012545 processing Methods 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims description 30
- 230000008569 process Effects 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 3
- 238000005255 carburizing Methods 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- B24B5/16—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 peculiarly surfaces, e.g. bulged
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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
- B24B41/005—Feeding or manipulating devices specially adapted to grinding machines
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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
- B24B41/02—Frames; Beds; Carriages
-
- 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
- B24B41/067—Work supports, e.g. adjustable steadies radially supporting workpieces
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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
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
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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
- B24B47/22—Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention provides a bearing convexity roller grinding and polishing device and a method for flexible continuous production, wherein the device comprises a sliding bottom plate, a fixed upright post, two grinding guide rollers, a guide roller adjusting mechanism arranged on the lower side of the sliding bottom plate, a feed inlet, a translation feeding mechanism arranged on the sliding bottom plate, a grinding tool and a receiving box, wherein the two grinding guide rollers are respectively driven to rotate by grinding driving units arranged on the sliding bottom plate and the fixed upright post, and the translation feeding sliding table is arranged in a translation feeding box and is controlled by a push plate driving unit to reciprocate. The scheme discards the serious dependence on the complex curved surface shape precision of the guide roller and the grinding wheel and the geometric structure adjustment of equipment in the traditional through centerless grinding and superfinishing processing mode, precisely and flexibly controls the movement speed of the push plate through numerical control programming, can form complex processing track form on the surface of a workpiece, further forms the contour of a bus of the workpiece into a convexity shape, and realizes flexible continuous processing of grinding and polishing of the convexity roller of the bearing.
Description
Technical Field
The invention relates to the technical field of grinding devices, in particular to a bearing convexity roller grinding and polishing device and a method thereof for flexible continuous production.
Background
The centreless grinding and superfinishing equipment in the prior art mainly depends on the shape of a guide roller, the geometric layout of a machine tool and the friction force between the workpiece and the guide roller, so that the guide roller has complex shape, high processing difficulty and high maintenance cost, and the translational feeding movement of the workpiece is extremely rigid. For workpieces with different sizes and shapes, parameter debugging and maintenance of equipment are required to be carried out for a long time, and flexible and personalized production in the intelligent manufacturing age is difficult to adapt. According to the processing equipment disclosed by the invention, the convexity formation of the workpiece mainly depends on the movement speed of the workpiece push plate, but not the shape of the guide roller and the geometric layout of the machine tool, so that the translational feeding of the variable-speed workpiece can be realized, and further, the flexible and personalized automatic grinding and polishing production of the bearing convexity roller is realized.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a bearing convexity roller grinding and polishing device and a method for flexible continuous production, which solve the problems in the background art.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a flexible continuous production's bearing convexity roller grinds burnishing device and method, includes slip bottom plate, fixed column, two grinds the deflector roll, locates deflector roll adjustment mechanism, feed inlet, the translation feed mechanism, grinding apparatus and the receipts magazine of locating on the slip bottom plate of slip bottom plate, two grinds the deflector roll respectively by locating on the slip bottom plate and the grinding drive unit on the fixed column drives rotatoryly, the grinding apparatus is by locating the fixed column is gone up the side and is moved the mechanism and carry out the adjustment of spatial position, the feed inlet is fixed to be located slip bottom plate upper surface, the feed inlet divide into stock chest, platform and baffle chest, install work piece translation mechanism on the feed inlet platform, the whereabouts mouth has been seted up to feed inlet baffle chest downside;
the translation feeding mechanism comprises a push plate driving unit, a translation feeding box, a translation feeding sliding table and a push plate, wherein the push plate driving unit is arranged on the upper surface of the sliding bottom plate, the translation feeding box is fixedly arranged on the sliding bottom plate, the translation feeding sliding table is arranged in the translation feeding box and is controlled by the push plate driving unit to reciprocate, and the push plate is fixedly arranged on the translation feeding sliding table;
the material collecting box is fixedly arranged on the upper end face of the sliding bottom plate, and the fixing frame, the pushing plate and the material collecting box are respectively and sequentially arranged along the axial direction of the grinding guide roller.
Preferably, the workpiece translation mechanism comprises a push rod motor fixedly arranged on the feeding port platform, and a push rod is arranged in the push rod motor.
Preferably, a push plate groove is formed in the push plate, the bottom wall of the push plate groove is lower than one side of the receiving box, which is close to the bottom wall of the push plate groove, and is far away from one side of the receiving box, and a sponge cushion is fixedly paved in the receiving box.
Preferably, the push plate driving unit comprises a first motor fixedly mounted on the sliding bottom plate, a belt pulley set is connected to one side of the first motor, which is far away from the material collecting box, of the first motor, the belt pulley set transmits power to a feed screw rod arranged in the translation feed box, the feed screw rod is rotationally connected with the inner wall of the translation feed box, and the feed screw rod is in threaded connection with the translation feed sliding table.
Preferably, the two sets of grinding drive units respectively comprise a motor support frame, a grinding motor, a rotating shaft support frame and a grinding rotating shaft, wherein the motor support frames are respectively fixedly arranged on the sliding bottom plate and the two sides of the fixed upright post, the two grinding motor support frames are respectively fixedly arranged on the motor support frames and far away from one end of the grinding guide roller, the rotating shaft support frames are fixedly arranged on the sliding bottom plate and the two sides of the fixed upright post and are positioned between the motor support frames, the grinding rotating shaft and the grinding guide roller are coaxially arranged and supported by the rotating shaft support frames, and the diameter of the grinding guide roller is larger than that of the grinding rotating shaft.
Preferably, the feed mechanism includes horizontal control box, horizontal lead screw, horizontal slip table, vertical control box and strengthening rib, horizontal control box fixed mounting in the fixed column upside, horizontal lead screw is located in the horizontal control box, horizontal control box outside fixed mounting has and is used for driving horizontal lead screw pivoted first motor, horizontal slip table slides and locates horizontal control box, horizontal lead screw with threaded connection between the horizontal slip table, vertical control box fixed mounting in the horizontal slip table outside, vertical control box outside fixed mounting has the second motor, second motor power extends to in the vertical control box and power connection have vertical lead screw, sliding mounting has vertical slip table in the vertical control box, vertical lead screw with threaded connection between the vertical slip table, the strengthening rib be used for with grinding apparatus fixed mounting in on the vertical slip table.
Preferably, the guide roller adjusting mechanism comprises a guide roller adjusting box fixedly arranged on the lower side of the sliding bottom plate, an adjusting base is connected in the guide roller adjusting box in a sliding manner, an adjusting screw rod is connected to the inner side of the adjusting base in a threaded manner, a third motor used for driving the adjusting screw rod to rotate is fixedly arranged on the outer side of the guide roller adjusting box, the sliding bottom plate is fixedly arranged on the upper side of the adjusting base, the upper end face of the sliding bottom plate and the lower end face of the inner side of the fixed upright are in the same plane, and two grinding guide rollers are located at the same height and located on the lower side of the push rod motor.
Preferably, the workpiece material is bearing steel, silicon nitride and zirconia, the grinding guide roller material is carburizing and quenching steel, and the friction force between the surface of the grinding guide roller and the surface of the workpiece is larger than the friction force between the workpiece and the grinding tool.
The grinding and polishing method for the bearing convexity roller for flexible continuous production is characterized by comprising the following steps.
S1, in the feeding process, a plurality of workpieces are placed in a feed port storage tank, a push rod motor controls a push rod to push the workpieces to fall from a falling port, one workpiece is conveyed to one end of a grinding guide roller and falls into a push plate groove, the inner side of the push plate groove limits the position of the workpiece between two grinding guide rollers, the distance between the two grinding guide rollers is adjusted according to the diameter of the outer circle of the workpiece through a guide roller adjusting mechanism of a bottom plate, the included angle of the section at the position where the axis of the workpiece abuts against the two grinding guide rollers is 120 degrees, and the bottom surface of a grinding tool is used for removing materials from the outer circle of the workpiece through adjusting a feed mechanism;
s2, in the processing process, the grinding guide rollers rotate in the same direction and at the same speed, so that the workpiece is driven to rotate, the first motor controls the push plate to drive the workpiece to move along the axial direction of the grinding guide rollers, and the specific direction is from one end of the grinding guide rollers close to the feed inlet to one end of the grinding guide rollers close to the receiving box; when the rotating and translating workpiece passes through the grinding tool, the workpiece is contacted with the grinding tool, the bottom surface of the grinding tool removes materials from the outer circle of the workpiece, the workpiece reciprocates and moves at a variable speed through numerical control programming, and when the positions of the two sides of the workpiece close to the end surfaces are contacted with the grinding tool, the translation speed of the workpiece is low, so that the materials at the two ends of the workpiece are removed more; when the middle section of the workpiece is in contact with the grinding tool, the translation speed of the workpiece is high, so that the material removal of the middle section of the workpiece is less, and a convexity shape is formed on a generatrix of the workpiece;
s3, after the workpiece leaves the grinding tool area, continuously keeping rotating and translating, when the workpiece moves to a position exceeding the grinding guide roller, freely falling between the two grinding rotating shafts, enabling the workpiece to freely fall to one side close to the receiving box by the inclined bottom wall of the push plate groove, receiving the workpiece by the receiving box, returning the push plate to the initial position, and circularly running along with the falling of a new workpiece.
(III) beneficial effects
The invention provides a bearing convexity roller grinding and polishing device and a method thereof for flexible continuous production. The beneficial effects are as follows:
1. the scheme discards the serious dependence on the complicated curved surface shape precision of the guide roller and the grinding wheel and the geometric structure adjustment of the equipment in the traditional through type centerless grinding and superfinishing processing mode, the convexity formation of the bearing roller mainly depends on the processing track form, and the processing track form can be controlled accurately and flexibly by numerical control programming, so that the flexible grinding and polishing processing of the bearing convexity rollers with different sizes and shapes is realized.
2. According to the scheme, the continuity of grinding and polishing work is guaranteed through the mode of configuring the feed inlet, the workpiece translation feed mechanism and the receiving box, and further flexible continuous production of grinding and polishing of the bearing convexity roller is achieved.
Drawings
FIG. 1 is a schematic diagram of a front view of the present invention;
FIG. 2 is a schematic diagram of an explosive structure according to the present invention;
FIG. 3 is a schematic view of a translational feeding mechanism and a fixing frame according to the present invention;
FIG. 4 is a schematic view of a translation feed mechanism according to the present invention;
FIG. 5 is a schematic view of a push plate and a push plate groove according to the present invention.
In the figure: 11. a sliding bottom plate; 12. fixing the upright post; 13. a first motor; 15. translating the feed box; 16. a feed screw; 18. a belt pulley set; 19. translating and feeding the sliding table; 20. a push plate; 21. a push plate groove; 22. a fixing frame; 23. a feed inlet; 24. a push rod motor; 25. a push rod; 26. a drop port; 27. a receiving box; 30. a motor support; 31. a grinding motor; 32. a rotating shaft support frame; 34. grinding the rotating shaft; 35. grinding the guide roller; 40. a horizontal control box; 41. a first motor; 42. a horizontal screw rod; 43. a horizontal slipway; 44. a vertical control box; 45. a second motor; 46. a vertical screw rod; 47. a vertical sliding table; 48. reinforcing ribs; 49. grinding tool; 50. a guide roller adjusting box; 51. a third motor; 52. adjusting a screw rod; 53. and adjusting the base.
Detailed Description
The embodiment of the invention provides a bearing convexity roller grinding and polishing method for flexible continuous production, as shown in fig. 1-5, the method comprises a sliding bottom plate 11, a fixed upright post 12, two grinding guide rollers 35, a guide roller adjusting mechanism arranged on the lower side of the sliding bottom plate 11, a feed inlet 23, a translation feeding mechanism arranged on the sliding bottom plate 11, a grinding tool 49 and a receiving box 27, wherein the two grinding guide rollers 35 are respectively driven to rotate by grinding driving units arranged on the sliding bottom plate 11 and the fixed upright post 12, the grinding tool 49 is subjected to space position adjustment by a side cutting mechanism arranged on the fixed upright post 12, the feed inlet 23 is fixedly arranged on the upper surface of the sliding bottom plate 11, the feed inlet 23 is divided into a storage tank, a platform and a guide tank, a workpiece translation mechanism is arranged on a platform of the feed inlet 23, a plurality of workpieces are arranged in the guide tank of the feed inlet 23, the power end of the workpiece translation mechanism extends into the guide tank of the feed inlet 23, a dropping opening 26 is arranged on the lower side of the guide tank of the feed inlet 23, the dropping opening 26 is arranged right above the limit position of one side of the two grinding guide rollers 35, the translation feeding mechanism comprises a push plate 15, a translation push plate box 19 and a push plate 19, the push plate 19 and a push plate 19 are arranged on the fixed side of the fixed support plate 19, the push plate 19 and the push plate 19 are arranged on the sliding bottom plate 19 and the fixed side of the feed box 19 in turn, and the slide plate 19 is arranged on the feed box 20 in a sliding manner, and the fixed translation box 19 is arranged along the sliding bottom plate 19 and the fixed side surface of the slide plate 19 and the fixed support frame and is arranged in the fixed translation box, and the feed box is in turn, and the fixed on the feed box and the slide box is arranged.
The workpiece translation mechanism comprises a push rod motor 24 fixedly arranged on a platform of the feed inlet 23, a push rod 25 is arranged in the push rod motor 24, and one end of the push rod 25 extends into a guide chute of the feed inlet 23 to be in contact with a workpiece.
As shown in fig. 5, the push plate 20 is provided with the push plate groove 21, the width of the push plate groove 21 is greater than the length of the workpiece, and then clearance fit is required to be maintained during processing, and note that when the workpiece falls down in the process after touching the bottom wall of the push plate groove 21, the falling direction of the workpiece cannot be controlled, so that the bottom wall of the push plate groove 21 is arranged to be lower than the side, close to the receiving box 27, of the push plate groove 21, far away from the receiving box 27, and then the workpiece can freely fall to the side, close to the receiving box 27, when passing through the bottom wall of the push plate groove 21, and meanwhile, the sponge cushion is fixedly paved in the receiving box 27, so that the workpiece is prevented from falling and being damaged due to collision.
As shown in fig. 4, the push plate driving unit includes a first motor 13 fixedly installed on the sliding bottom plate 11, one side, far away from the material receiving box 27, of the first motor 13 is dynamically connected with a belt pulley set 18, the first motor 13 drives a driving wheel in the belt pulley set 18 to rotate through a coupling, the driving wheel of the belt pulley set 18 transmits power to a feed screw 16 arranged in the translation feed box 15 through a belt, the feed screw 16 is rotationally connected with the inner wall of the translation feed box 15, the feed screw 16 is in threaded connection with the translation feed sliding table 19, a sliding rail for limiting the horizontal sliding of the translation feed sliding table 19 is arranged in the translation feed box 15, and the feed screw 16 drives the translation feed sliding table 19 to be positioned in the translation feed box 15 to horizontally move through threads.
As shown in fig. 3, the two sets of grinding driving units respectively include a motor support 30, a grinding motor 31, a rotating shaft support 32 and a grinding rotating shaft 34, the motor support 30 is respectively and fixedly arranged at two sides of the sliding bottom plate 11 and the fixed upright 12, the two grinding motors 31 are respectively and fixedly arranged at one ends of the motor support 30 far away from the grinding guide rollers 35, the rotating shaft support 32 is fixedly arranged at two sides of the sliding bottom plate 11 and the fixed upright 12 and is positioned between the motor support 30, the grinding rotating shaft 34 and the grinding guide rollers 35 are coaxially arranged and supported by the rotating shaft support 32, the diameter of the grinding guide rollers 35 is larger than that of the grinding rotating shaft 34, and the rotation directions of the two grinding rotating shafts 34 are the same.
As shown in fig. 2, the feeding mechanism comprises a horizontal control box 40, a horizontal screw rod 42, a horizontal sliding table 43, a vertical control box 44 and a reinforcing rib 48, wherein the horizontal control box 40 is fixedly installed on the upper side of a fixed upright post 12, the horizontal screw rod 42 is arranged in the horizontal control box 40, a first motor 41 for driving the horizontal screw rod 42 to rotate is fixedly installed on the outer side of the horizontal control box 40, the horizontal sliding table 43 is slidably connected with the horizontal control box 40, a sliding rail for limiting the horizontal sliding of the horizontal sliding table 43 is arranged in the horizontal control box 40, the horizontal screw rod 42 is in threaded connection with the horizontal sliding table 43, the vertical control box 44 is fixedly installed on the outer side of the horizontal sliding table 43, a second motor 45 is fixedly installed on the outer side of the vertical control box 44, the second motor 45 is in a power extending mode into the vertical control box 44 and is in a power connection with a vertical screw rod 46, a vertical sliding table 47 is slidably installed in the vertical control box 44, a sliding rail for limiting the vertical sliding of the vertical sliding table 47 is arranged in the vertical control box 44, the vertical screw rod 46 is in threaded connection with the vertical sliding table 47, and the reinforcing rib 48 is used for fixedly installing a grinding tool 49 on the vertical sliding table 47.
When the staff needs to adjust the horizontal position of the grinding tool 49, the first motor 41 is controlled to start, the first motor 41 drives the horizontal screw rod 42 to rotate through the coupler, the horizontal screw rod 42 drives the horizontal sliding table 43 to horizontally move in the horizontal control box 40 through threads, then the vertical control box 44 is driven to horizontally move, and the vertical control box 44 drives the grinding tool 49 to horizontally move through the reinforcing ribs 48.
When the vertical position of the grinding tool 49 needs to be adjusted by a worker, the second motor 45 is started, the second motor 45 drives the vertical screw rod 46 to rotate through the coupler, the vertical screw rod 46 drives the vertical sliding table 47 to lift through threads, and then the grinding tool 49 is driven to lift through the reinforcing ribs 48.
The guide roller adjusting mechanism comprises a guide roller adjusting box 50 fixedly arranged on the lower side of the sliding bottom plate 11, an adjusting base 53 is connected in the guide roller adjusting box 50 in a sliding manner, a sliding rail used for limiting the movement of the adjusting base 53 is arranged in the guide roller adjusting box 50, an adjusting screw rod 52 is connected with the inner side of the adjusting base 53 in a threaded manner, a third motor 51 used for driving the adjusting screw rod 52 to rotate is fixedly arranged on the outer side of the guide roller adjusting box 50, the sliding bottom plate 11 is fixedly arranged on the upper side of the adjusting base 53, the upper end face of the sliding bottom plate 11 and the inner lower end face of the fixed upright 12 are in the same plane, and two grinding guide rollers 35 are located at the same height and are located on the lower side of the push rod motor 24.
When the distance between the two grinding guide rollers 35 needs to be adjusted by a worker, the third motor 51 is started, the third motor 51 drives the adjusting screw rod 52 to rotate through the coupler, the adjusting screw rod 52 drives the adjusting base 53 to be located in the guide roller adjusting box 50 to translate through threads, the whole sliding bottom plate 11 is driven to translate, and the sliding bottom plate 11 enables the distance between the two grinding guide rollers 35 to be changed through driving the motor supporting frame 30 and the rotating shaft supporting frame 32 to move.
In the scheme, the workpiece to be processed is made of bearing steel, silicon nitride and zirconia, the grinding guide roller 35 is made of carburizing and quenching steel, the friction force between the surface of the grinding guide roller 35 and the surface of the workpiece is greater than that between the workpiece and the grinding tool 49, and the two grinding guide rollers 35 drive the workpiece to rotate through the surface friction force, so that the workpiece is ground and polished by the grinding tool 49.
In the scheme, the processing of one workpiece is divided into three stages:
s1, in the feeding process, a plurality of workpieces are placed in a storage tank of a feed port 23, a push rod motor 24 controls a push rod 25 to push the workpieces to fall from a falling port 26, one workpiece is conveyed to one end of a grinding guide roller 35 and falls into a push plate groove 21, the position of the workpiece falling between the two grinding guide rollers 35 is limited by the inner side of the push plate groove 21, the distance between the two grinding guide rollers 35 is adjusted according to the diameter of the outer circle of the workpiece through a guide roller adjusting mechanism of a bottom plate, the included angle of the cross section at the position where the axis of the workpiece abuts against the two grinding guide rollers 35 is 120 degrees, and the bottom surface of a grinding tool is used for removing materials from the outer circle of the workpiece through adjusting the feed mechanism;
s2, in the processing process, the grinding guide rollers 35 rotate in the same direction and at the same speed, so that the workpiece is driven to rotate, the first motor 13 controls the push plate 20 to drive the workpiece to move along the axial direction of the grinding guide rollers 35, and the specific direction is from one end of the grinding guide rollers 35 close to the feed inlet to one end of the grinding guide rollers 35 close to the material receiving box 27; when the rotating and translating workpiece passes through the grinding tool 49, the workpiece is contacted with the grinding tool 49, the bottom surface of the grinding tool 49 removes materials from the outer circle of the workpiece, the workpiece is reciprocated and moved at a variable speed through numerical control programming, and when the positions of two sides of the workpiece close to the end surfaces are contacted with the grinding tool 49, the translation speed of the workpiece is low, so that the removal of materials at two ends of the workpiece is ensured to be more; when the workpiece intermediate section is in contact with the grinding tool 49, the workpiece translation speed is rapid, so that the workpiece intermediate section has less material removal, thereby forming a convexity shape on the workpiece generatrix;
and S3, after the workpiece leaves the grinding tool area, continuously keeping rotating and translating, when the workpiece moves to a position exceeding the grinding guide roller 35, freely falling the workpiece from between the two grinding rotating shafts 34, enabling the workpiece to freely fall to one side close to the material receiving box 27 by the inclined bottom wall of the push plate groove 21, carrying out material receiving on the workpiece by the material receiving box 27, returning the push plate to the initial position, and carrying out circulating operation along with the falling of a new workpiece.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A flexible continuously produced bearing convexity roller grinding and polishing method is characterized in that: the automatic grinding device comprises a sliding bottom plate (11), a fixed upright post (12), two grinding guide rollers (35), a guide roller adjusting mechanism arranged on the lower side of the sliding bottom plate (11), a feed inlet (23), a translation feeding mechanism arranged on the sliding bottom plate (11), a grinding tool (49) and a receiving box (27), wherein the two grinding guide rollers (35) are identical in diameter size and horizontally arranged in parallel, the axial distance between the two grinding guide rollers is adjusted by the guide roller adjusting mechanism, the grinding guide rollers are respectively driven to rotate by grinding driving units arranged on the sliding bottom plate (11) and the fixed upright post (12), and the grinding tool (49) is adjusted in space position by a side feeding mechanism arranged on the fixed upright post (12);
the translation feeding mechanism comprises a push plate driving unit, a translation feeding box (15), a translation feeding sliding table (19) and a push plate (20), wherein the push plate driving unit is arranged on the upper surface of the sliding bottom plate (11), the translation feeding box (15) is fixedly arranged on the sliding bottom plate (11), the translation feeding sliding table (19) is arranged in the translation feeding box (15) and is controlled by the push plate driving unit to reciprocate, the push plate (20) is fixedly arranged on the translation feeding sliding table (19), and the push plate (20) is arranged between two grinding guide rollers (35) and is parallel to the axes of the two grinding guide rollers (35);
the feeding port (23) is fixedly arranged on the upper surface of the sliding bottom plate (11) and is placed on the end face close to one side of the guide roller, the feeding port (23) is divided into a storage tank, a platform and a guide tank, the storage tank is connected with the platform, the platform is connected with the guide tank, the storage tank and the guide tank are obliquely arranged, a workpiece translation mechanism is arranged on the platform of the feeding port (23), a falling port (26) is formed in the lower side of the guide tank of the feeding port (23), and the falling port (26) is used for guiding a workpiece to roll to the grinding guide roller (35);
the material receiving box (27) is fixedly arranged on the upper end face of the sliding bottom plate (11), the material inlet (23), the pushing plate (20) and the material receiving box (27) are respectively and sequentially arranged along the axial direction of the grinding guide rollers (35), and the top of the material receiving box (27) is positioned below a gap between the two grinding guide rollers (35);
the specific polishing method comprises the following steps:
s1, in the feeding process, a plurality of workpieces are placed in a storage tank of a feed port (23), a push rod motor (24) controls a push rod (25) to push the workpieces to fall from a falling port (26), one workpiece is conveyed to one end of a grinding guide roller (35) and falls into a push plate groove (21), the inner side of the push plate groove (21) limits the position of the workpiece between the two grinding guide rollers (35), the distance between the two grinding guide rollers (35) is regulated according to the diameter of the outer circle of the workpiece through a guide roller regulating mechanism of a bottom plate, the cross section included angle at the position where the axis of the workpiece abuts against the two grinding guide rollers (35) is 120 DEG, and the bottom surface of a grinding tool is used for removing materials from the outer circle of the workpiece through regulating the feed mechanism;
s2, in the processing process, the grinding guide rollers (35) rotate in the same direction and at the same speed, so that the workpiece is driven to rotate, the first motor (13) controls the push plate (20) to drive the workpiece to move along the axial direction of the grinding guide rollers (35), and the specific direction is from one end of the grinding guide rollers (35) close to the feed inlet to one end of the grinding guide rollers (35) close to the material receiving box (27); when the rotating and translating workpiece passes through the grinding tool (49), the workpiece is contacted with the grinding tool (49), the bottom surface of the grinding tool (49) removes materials from the outer circle of the workpiece, the workpiece is reciprocated and moved at a variable speed through numerical control programming, and when the positions, close to the end surfaces, of the two sides of the workpiece are contacted with the grinding tool (49), the translation speed of the workpiece is low, so that the removal of materials at the two ends of the workpiece is ensured to be more; when the middle section of the workpiece is in contact with the grinding tool (49), the translation speed of the workpiece is high, so that the material removal of the middle section of the workpiece is less, and a convexity shape is formed on a generatrix of the workpiece;
s3, after the workpiece leaves the grinding tool area, the workpiece continues to rotate and translate, when the workpiece moves to a position exceeding the grinding guide roller (35), the workpiece freely falls from between the two grinding rotating shafts (34), the inclined bottom wall of the push plate groove (21) enables the workpiece to freely fall to one side close to the material receiving box (27), the material receiving box (27) holds the workpiece, and then the push plate returns to the initial position and circularly operates along with the falling of a new workpiece.
2. The flexible continuous production bearing convexity roller grinding and polishing method according to claim 1, characterized in that: the workpiece translation mechanism comprises a push rod motor (24) fixedly arranged on the feeding hole (23) platform, and a push rod (25) is arranged in the push rod motor (24).
3. The flexible continuous production bearing convexity roller grinding and polishing method according to claim 1, characterized in that: a push plate groove (21) is formed in the push plate (20), the bottom wall of the push plate groove (21) is close to one side of the receiving box (27) and lower than one side of the bottom wall of the push plate groove (21) away from the receiving box (27), and a sponge cushion is fixedly paved in the receiving box (27).
4. The flexible continuous production bearing convexity roller grinding and polishing method according to claim 1, characterized in that: the push plate driving unit comprises a first motor (13) fixedly mounted on the sliding bottom plate (11), one side of the first motor (13) away from the material collecting box (27) is dynamically connected with a belt pulley set (18), the belt pulley set (18) transmits power to a feed screw (16) arranged in the translation feed box (15), the feed screw (16) is rotationally connected with the inner wall of the translation feed box (15), and the feed screw (16) is in threaded connection with the translation feed sliding table (19).
5. The flexible continuous production bearing convexity roller grinding and polishing method according to claim 1, characterized in that: the two groups of grinding driving units respectively comprise a motor support frame (30), a grinding motor (31), a rotating shaft support frame (32) and a grinding rotating shaft (34), wherein the motor support frame (30) is respectively and fixedly arranged on two sides of the sliding bottom plate (11) and the fixed upright posts (12), the two grinding motor support frames (31) are respectively and fixedly arranged on the motor support frame (30) and far away from one end of the grinding guide roller (35), the grinding rotating shaft (34) is coaxially arranged with the grinding guide roller (35) and is supported by the rotating shaft support frame (32), and the diameter of the grinding guide roller (35) is larger than that of the grinding rotating shaft (34).
6. The flexible continuous production bearing convexity roller grinding and polishing method according to claim 1, characterized in that: the feeding mechanism comprises a horizontal control box (40), a horizontal screw rod (42), a horizontal sliding table (43), a vertical control box (44) and a reinforcing rib (48), wherein the horizontal control box (40) is fixedly installed on the upper side of a fixed upright post (12), the horizontal screw rod (42) is arranged in the horizontal control box (40), a first motor (41) used for driving the horizontal screw rod (42) to rotate is fixedly installed on the outer side of the horizontal control box (40), the horizontal sliding table (43) is slidingly arranged on the horizontal control box (40), the horizontal screw rod (42) is in threaded connection with the horizontal sliding table (43), the vertical control box (44) is fixedly installed on the outer side of the horizontal sliding table (43), a second motor (45) is fixedly installed on the outer side of the vertical control box (44), the second motor (45) is dynamically extended into the vertical control box (44) and is dynamically connected with a vertical screw rod (46), a vertical sliding table (47) is slidably installed in the vertical control box (44), and the vertical sliding table (46) is in threaded connection with the vertical sliding table (43) with the reinforcing rib (47).
7. The flexible continuous production bearing convexity roller grinding and polishing method according to claim 1, characterized in that: the guide roller adjusting mechanism comprises a guide roller adjusting box (50) fixedly arranged on the lower side of the sliding base plate (11), an adjusting base (53) is connected in the guide roller adjusting box (50) in a sliding mode, an adjusting screw rod (52) is connected to the inner side of the adjusting base (53) in a threaded mode, a third motor (51) used for driving the adjusting screw rod (52) to rotate is fixedly arranged on the outer side of the guide roller adjusting box (50), the sliding base plate (11) is fixedly arranged on the upper side of the adjusting base (53), and two grinding guide rollers (35) are located at the same height and located on the lower side of the push rod motor (24).
8. The flexible continuous production bearing convexity roller grinding and polishing method according to claim 1, characterized in that: the workpiece is made of bearing steel, silicon nitride and zirconia, the grinding guide roller (35) is made of carburizing and quenching steel, and the friction force between the surface of the grinding guide roller (35) and the surface of the workpiece is larger than the friction force between the workpiece and the grinding tool (49).
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109202689A (en) * | 2018-09-19 | 2019-01-15 | 中钢集团新型材料（浙江）有限公司 | One kind being used for high-precision smooth surface cylindrical graphite sample process equipment |
| CN110270898A (en) * | 2019-06-18 | 2019-09-24 | 绍兴文理学院 | A kind of flexible superfinishing Polishing machining device and method of convex roller outer circle |
| CN215700256U (en) * | 2021-08-23 | 2022-02-01 | 涿州市金晟顺通新材料科技有限公司 | Prevent safe type centerless grinding equipment that hand hindered |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109202689A (en) * | 2018-09-19 | 2019-01-15 | 中钢集团新型材料（浙江）有限公司 | One kind being used for high-precision smooth surface cylindrical graphite sample process equipment |
| CN110270898A (en) * | 2019-06-18 | 2019-09-24 | 绍兴文理学院 | A kind of flexible superfinishing Polishing machining device and method of convex roller outer circle |
| CN215700256U (en) * | 2021-08-23 | 2022-02-01 | 涿州市金晟顺通新材料科技有限公司 | Prevent safe type centerless grinding equipment that hand hindered |
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