CN103659567B - Nuclear power bearing ring processes special Superfinishing machine - Google Patents
Nuclear power bearing ring processes special Superfinishing machine Download PDFInfo
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- CN103659567B CN103659567B CN201310604262.4A CN201310604262A CN103659567B CN 103659567 B CN103659567 B CN 103659567B CN 201310604262 A CN201310604262 A CN 201310604262A CN 103659567 B CN103659567 B CN 103659567B
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- nuclear power
- bearing ring
- power bearing
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000008569 process Effects 0.000 title claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 238000012545 processing Methods 0.000 claims abstract description 19
- 239000004575 stone Substances 0.000 claims abstract description 19
- 230000003028 elevating effect Effects 0.000 claims abstract description 13
- 238000013519 translation Methods 0.000 claims abstract description 4
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 6
- 238000003754 machining Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
- B24B35/00—Machines or devices designed for superfinishing surfaces on work, i.e. by means of abrading blocks reciprocating with high frequency
-
- 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
- B24B41/061—Work supports, e.g. adjustable steadies axially supporting turning workpieces, e.g. magnetically, pneumatically
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machine Tool Units (AREA)
- Rolling Contact Bearings (AREA)
Abstract
A kind of nuclear power bearing ring processes special Superfinishing machine, comprise lathe base, lathe bed, hydraulic system, electric-control system, servo-drive system, also comprise electro spindle, yaw elevating mechanism, workpiece spindle, yaw motion bar, slide block, workpiece translational motion mechanism, supporting component, magnetic pole, rotating eccentricity wheel, nuclear power bearing ring, yaw slideway, oil stone clip; Electro spindle and yaw elevating mechanism are two covers, are arranged on above work translation mechanism respectively, and often overlap electro spindle and work alone and moved up and down by yaw elevating mechanism, electro spindle bottom rotating eccentricity is taken turns, and electro spindle driven rotary eccentric wheel rotates; The object of this invention is to provide a kind of processing nuclear power bearing ring more convenient superfinishing more efficiently mechanism, under the prerequisite ensureing machining accuracy, the time in the past changing machine components, debugging processing cun method can be saved, only need to change magnetic pole and just can continue processing, effectively can promote working (machining) efficiency.
Description
Technical field
The present invention relates to a kind of Superfinishing machine, particularly the special Superfinishing machine of a kind of bearing machining.
Background technology
Numerical control Superfinishing machine is because the change of lasso model and appearance and size needs to change some specific parts to reach the object of processing in processing nuclear power bearing ring process, and need debugging and trial production in Renewal process, process complexity is loaded down with trivial details.
19-22 page in 4th phase " bearing " in 2011, disclosing exercise question is: bearing ring grinding superfinishing all-in-one, author: Lu Hongdao, the configuration that grinding superfinishing grinds production line is described in the 3-5 section of this section of document, its concrete technical scheme comprises following content, numerical control Superfinishing machine can carry out nuclear power bearing ring location and change the equipment part more meeting this lasso of processing when start processing first certified products, different to the degree of understanding of equipment according to operator, the percent defective occurred in trial production process also has certain difference; The defect of technique scheme is: 1, adjustment difficulty is very large: because numerical control Superfinishing machine needs the position of manually adjustment many when changing processing machine, very complicated; 2, regulation time is very long: due to very high to processing staff's skill requirement, and new hand takes the time can be very long, in the process, goes to carry out man-machine break-in with regard to needing very many time; 3, error rate is high: because the experience of processing staff, ability is different, is judging whether in the process of the test after adjusting, the learies of processing work can be caused to increase.Therefore, a special making special Superfinishing machine of nuclear power bearing is needed.
Summary of the invention
My company is for the high accuracy nuclear power bearing produced at present, devise the more convenient Superfinishing machine more efficiently of a kind of processing nuclear power bearing outer ring especially, the special Superfinishing machine of the present invention is easy and simple to handle, when replacing nuclear power bearing ring machining kinds without the need to changing too much equipment part, simple and quick, more easily grasped by operator and understand.
Design principle of the present invention is, the manual adjustment bolt before utilizing the servo-drive system of present Technical comparing maturation to replace, and accelerate Adjustment precision and speed, this equipment can complete 2 superfinishings when not changing station.
The technical scheme that the present invention deals with problems, a kind of nuclear power bearing ring processes special Superfinishing machine, comprise lathe base, lathe bed, hydraulic system, electric-control system, servo-drive system, also comprise electro spindle, yaw elevating mechanism, workpiece spindle, yaw motion bar, slide block, workpiece translational motion mechanism, supporting component, magnetic pole, rotating eccentricity wheel, nuclear power bearing ring, yaw slideway, oil stone clip;
Electro spindle and yaw elevating mechanism are two covers, are arranged on above work translation mechanism respectively, and often overlap electro spindle and work alone and moved up and down by yaw elevating mechanism, electro spindle bottom rotating eccentricity is taken turns, and electro spindle driven rotary eccentric wheel rotates;
Rotating eccentricity wheel installs yaw motion bar, horizontal repeatedly moving can be there is under the rotation that yaw motion bar is taken turns at rotating eccentricity, yaw motion bar can be with movable slider also transverse shifting to occur in mobile, and yaw slideway is used for ensureing that slide block transverse shifting can carry out more stably;
There is fixing rotating shaft in oil stone clip centre, by a set of bearing, oil stone clip is connected with rotating shaft, rotary power comes from the slide block of transverse shifting, the rectangular cave of a hollow out is arranged at the bottom of slide block, link with bearing between oil stone clip with rectangular cave, be used for ensureing that oil stone clip can set back after electro spindle has turned a circle;
Electro spindle energising rotarily drives that yaw motion bar is ceaselessly laterally repeatedly mobile finally to be made oil stone clip ceaselessly swing/reset to realize the fine abrasive of oilstone head to nuclear power bearing ring;
Workpiece spindle is arranged in workpiece translational motion mechanism, by servomotor driven rotary; Magnetic pole is installed on the top of workpiece spindle, adsorbs nuclear power bearing ring workpiece to be processed after magnetic pole energising in top annular end face; There is certain offset in the axle center of nuclear power bearing ring workpiece and the axle center of magnetic pole;
Described magnetic pole comprises magnetic pole base, workpiece support section, chip-removal hole, top annular end face, and chip-removal hole is 2-4, and in the middle part of the sidewall being arranged on workpiece support section, pole center hole is connected to workpiece spindle; Workpiece translational motion mechanism and operating desk, move in the horizontal direction, and drives nuclear power bearing ring workpiece to the relevant position of processing;
Described supporting component comprises: supporting member, shell, shaft coupling, adjustable worm propeller, propeller fixed head, base, base is fixed in workpiece translational motion mechanism, supporting member is connected with adjustable worm propeller by shaft coupling, and coupling part is in shell, one end installation propeller fixed head of shell carries out spacing to adjustable worm propeller; Rotary adjustable worm propeller, adjustment supporting member props up nuclear power bearing ring workpiece to be processed.
Beneficial effect: the object of this invention is to provide a kind of processing nuclear power bearing ring more convenient superfinishing more efficiently mechanism, under the prerequisite ensureing machining accuracy, the time in the past changing machine components, debugging processing cun method can be saved, only need to change magnetic pole and just can continue processing, effectively can promote working (machining) efficiency.
Make use of the most practical modern servo-drive system to realize the displacement relation between oilstone head and nuclear power bearing ring, more conveniently compared with manual adjustment bolt before reach adjustment of displacement, Adjustment precision can reach micron, improves Adjustment precision, regulation time, also reduces the skill set requirements of operator.This equipment is two cover main shaft lifting mechanisms, can complete twice superfinishing operation, be the processing twice of a needs equipment discontinuity in the past, and so just there will be secondary clamping, such precision will decline, process time also can be long in a whole set of process.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, introduce the embodiment of the present invention in detail.
Fig. 1: the lathe bed part-structure schematic diagram of Superfinishing machine of the present invention.
Fig. 2: the structure principle chart of supporting component.
Fig. 3: the structure principle chart of magnetic pole.
Fig. 4: the offset schematic diagram of workpiece and magnetic pole.
Fig. 5: nuclear power bearing ring schematic diagram.
In figure: 1. lathe base, 2. lathe bed, 3. yaw motion bar, 4. slide block, 5. electro spindle, 6. yaw elevating mechanism, 7. workpiece spindle, 8. workpiece translational motion mechanism, 9. rotating eccentricity wheel, 10. nuclear power bearing ring, 11. yaw slideways, 12. oil stone clips;
200. supporting components, 201. supporting members, 202. shells, 203. shaft couplings, 204. adjustable worm propellers, 205. propeller fixed heads, 206. bases;
400. magnetic poles, 401. magnetic pole bases, 402. workpiece support section, 403. chip-removal holes, 404. top annular end face;
Detailed description of the invention
A kind of nuclear power bearing ring processes special Superfinishing machine, comprise lathe base 1, lathe bed 2, hydraulic system, electric-control system, servo-drive system, it is characterized in that: also comprise electro spindle 5, yaw elevating mechanism 6, workpiece spindle 7, yaw motion bar 3, slide block 4, workpiece translational motion mechanism 8, supporting component 200, magnetic pole 400, rotating eccentricity wheel 9, nuclear power bearing ring 10, yaw slideway 11, oil stone clip 12;
Electro spindle 5 and yaw elevating mechanism 6 are two covers, are arranged on above work translation mechanism 8 respectively, often overlap electro spindle 5 and work alone and moved up and down by yaw elevating mechanism 6, electro spindle 5 bottom rotating eccentricity wheel 9, and electro spindle driven rotary eccentric wheel 9 rotates;
Rotating eccentricity wheel 9 installs yaw motion bar 3, horizontal repeatedly moving can be there is in yaw motion bar 3 under the rotation of rotating eccentricity wheel 9, yaw motion bar 3 can be with movable slider 4 also transverse shifting to occur in mobile, and yaw slideway 11 is used for ensureing that slide block 4 transverse shifting can carry out more stably;
There is fixing rotating shaft in oil stone clip 12 centre, rotary power comes from the slide block 4 of transverse shifting, the rectangular cave of a hollow out is arranged at the bottom of slide block 4, links between oil stone clip 12 with rectangular cave with bearing, is used for ensureing that oil stone clip 12 can set back after the complete circle of electro spindle 5 turns;
Electro spindle 5 energising rotarily drives that yaw motion bar 3 is ceaselessly laterally repeatedly mobile finally to be made oil stone clip 12 ceaselessly swing/reset to realize the fine abrasive to nuclear power bearing ring 10;
Workpiece spindle 7 is arranged in workpiece translational motion mechanism 8, is rotated by driven by motor; Magnetic pole 400 is installed on the top of workpiece spindle 7, and magnetic pole 400 adsorbs nuclear power bearing ring 10 workpiece to be processed in top annular end face 404 after being energized; There is certain offset in the axle center of nuclear power bearing ring 10 workpiece and the axle center of magnetic pole 400;
Described magnetic pole 400 comprises magnetic pole base 401, workpiece support section 402, chip-removal hole 403, top annular end face 404, and chip-removal hole 403 is 2-4, and in the middle part of the sidewall being arranged on workpiece support section 402, magnetic pole 400 centre bore is connected to workpiece spindle 7; Workpiece translational motion mechanism 8 i.e. operating desk, moves in the horizontal direction, and drives nuclear power bearing ring 10 workpiece to the relevant position of processing;
Described supporting component 200 comprises: supporting member 201, shell 202, shaft coupling 203, adjustable worm propeller 204, propeller fixed head 205, base 206, base 206 is fixed in workpiece translational motion mechanism 8, supporting member 201 is connected with adjustable worm propeller 204 by shaft coupling 203, and coupling part is in shell 202, one end installation propeller fixed head 205 of shell 202 carries out spacing to adjustable worm propeller 204; Rotary adjustable worm propeller 204, adjustment supporting member 201 props up nuclear power bearing ring 10 workpiece to be processed.
The present invention is not limited to above-described embodiment, any the present invention disclose technical scope in equivalent concepts or change, be all classified as protection scope of the present invention.
Claims (1)
1. a nuclear power bearing ring processes special Superfinishing machine, comprise lathe base (1), lathe bed (2), hydraulic system, electric-control system, servo-drive system, it is characterized in that: also comprise electro spindle (5), yaw elevating mechanism (6), workpiece spindle (7), yaw motion bar (3), slide block (4), workpiece translational motion mechanism (8), supporting component (200), magnetic pole (400), rotating eccentricity wheel (9), nuclear power bearing ring (10), yaw slideway (11), oil stone clip (12);
Electro spindle (5) and yaw elevating mechanism (6) are two covers, be arranged on work translation mechanism (8) top respectively, often overlap electro spindle (5) work alone and moved up and down by yaw elevating mechanism (6), electro spindle (5) bottom rotating eccentricity wheel (9), electro spindle driven rotary eccentric wheel (9) rotates;
Rotating eccentricity wheel (9) installs yaw motion bar (3), horizontal repeatedly moving can be there is in yaw motion bar (3) under the rotation of rotating eccentricity wheel (9), yaw motion bar (3) can be with movable slider (4) also transverse shifting to occur in mobile, and yaw slideway (11) is used for ensureing that slide block (4) transverse shifting can carry out more stably;
There is fixing rotating shaft in oil stone clip (12) centre, by a set of bearing, oil stone clip is connected with rotating shaft, rotary power comes from the slide block (4) of transverse shifting, the rectangular cave of a hollow out is arranged at the bottom of slide block (4), link with bearing between oil stone clip (12) and rectangular cave, be used for ensureing that oil stone clip (12) can set back after electro spindle (5) has turned a circle;
Electro spindle (5) energising rotarily drives that yaw motion bar (3) is ceaselessly laterally repeatedly mobile finally to be made oil stone clip (12) ceaselessly swing/reset to realize the fine abrasive of oilstone head to nuclear power bearing ring (10);
Workpiece spindle (7) is arranged in workpiece translational motion mechanism (8), by servomotor driven rotary; Magnetic pole (400) is installed on the top of workpiece spindle (7), adsorbs nuclear power bearing ring (10) workpiece to be processed after magnetic pole (400) energising in top annular end face (404); There is certain offset in the axle center of nuclear power bearing ring (10) workpiece and the axle center of magnetic pole (400);
Described magnetic pole (400) comprises magnetic pole base (401), workpiece support section (402), chip-removal hole (403), top annular end face (404), chip-removal hole (403) is 2-4, in the middle part of the sidewall being arranged on workpiece support section (402), magnetic pole (400) centre bore is connected to workpiece spindle (7); Workpiece translational motion mechanism (8) i.e. operating desk, moves in the horizontal direction, and drives nuclear power bearing ring (10) workpiece to the relevant position of processing;
Described supporting component (200) comprising: supporting member (201), shell (202), shaft coupling (203), adjustable worm propeller (204), propeller fixed head (205), base (206), base (206) is fixed in workpiece translational motion mechanism (8), supporting member (201) is connected with adjustable worm propeller (204) by shaft coupling (203), and coupling part is inner at shell (202), one end installation propeller fixed head (205) of shell (202) is carried out spacing to adjustable worm propeller (204), rotary adjustable worm propeller (204), adjustment supporting member (201) props up nuclear power bearing ring (10) workpiece to be processed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310604262.4A CN103659567B (en) | 2013-11-25 | 2013-11-25 | Nuclear power bearing ring processes special Superfinishing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310604262.4A CN103659567B (en) | 2013-11-25 | 2013-11-25 | Nuclear power bearing ring processes special Superfinishing machine |
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| CN103659567A CN103659567A (en) | 2014-03-26 |
| CN103659567B true CN103659567B (en) | 2015-10-28 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105538125B (en) * | 2016-01-17 | 2017-11-03 | 浙江陀曼智造科技有限公司 | A kind of Superfinishing machine supporting mechanism |
| CN105538127B (en) * | 2016-01-17 | 2017-12-19 | 浙江陀曼智造科技有限公司 | A kind of Superfinishing machine control pressurer system |
| CN105522471B (en) * | 2016-01-17 | 2018-06-05 | 浙江陀曼智造科技有限公司 | A kind of Superfinishing machine main shaft |
| CN106141892B (en) * | 2016-06-30 | 2018-06-22 | 宁波安杰森精密机械制造有限公司 | A kind of bearing collar path and the compound super lapping machine of rib |
| CN107309745A (en) * | 2016-08-27 | 2017-11-03 | 南通山口精工机电有限公司 | A kind of superfinishing oilstone clamping device |
| CN109434669B (en) * | 2018-11-27 | 2023-11-28 | 无锡机床股份有限公司 | Hub superfinishing machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2332531Y (en) * | 1996-04-01 | 1999-08-11 | 机械工业部第十设计研究院 | 'Pitching-in and through-cutting' two-step bearing bearings ring convexity trunk tray super-fine machine tool |
| US6102783A (en) * | 1998-01-13 | 2000-08-15 | Ernst Thielenhaus Gmbh & Co. Kg | Apparatus for microfinishing cam-shaft surfaces |
| CN202200163U (en) * | 2011-04-02 | 2012-04-25 | 长治市滚动轴承制造有限公司 | Bearing ring fine-grinding machine |
| CN202943525U (en) * | 2012-11-12 | 2013-05-22 | 大连凯特乐机械有限公司 | Vertical grinding machine precise roller bearing roller path ultra-precise device |
| CN203141290U (en) * | 2013-02-18 | 2013-08-21 | 苏州铁近机电科技有限公司 | Bearing ring internal wheel and external wheel processing machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4147387B2 (en) * | 2002-10-11 | 2008-09-10 | 株式会社ジェイテクト | Super finishing device for ball bearing race |
-
2013
- 2013-11-25 CN CN201310604262.4A patent/CN103659567B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2332531Y (en) * | 1996-04-01 | 1999-08-11 | 机械工业部第十设计研究院 | 'Pitching-in and through-cutting' two-step bearing bearings ring convexity trunk tray super-fine machine tool |
| US6102783A (en) * | 1998-01-13 | 2000-08-15 | Ernst Thielenhaus Gmbh & Co. Kg | Apparatus for microfinishing cam-shaft surfaces |
| CN202200163U (en) * | 2011-04-02 | 2012-04-25 | 长治市滚动轴承制造有限公司 | Bearing ring fine-grinding machine |
| CN202943525U (en) * | 2012-11-12 | 2013-05-22 | 大连凯特乐机械有限公司 | Vertical grinding machine precise roller bearing roller path ultra-precise device |
| CN203141290U (en) * | 2013-02-18 | 2013-08-21 | 苏州铁近机电科技有限公司 | Bearing ring internal wheel and external wheel processing machine |
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| CN103659567A (en) | 2014-03-26 |
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Effective date of registration: 20171208 Address after: No. 9, No. two, West Liaohe Road, Liaoning economic and Technological Development Zone, Dalian, Liaoning Patentee after: Dalian Dayou Hi-Tech Ceramic Co., Ltd. Address before: 116600 Dalian da you hi tech ceramics Co., Ltd., No. 9, Jinzhou new area, Dalian, Liaoning, Dalian da you hi tech ceramics Co., Ltd. Patentee before: Li Dongju |