CN106863073A - The ball race grinding technique of high accuracy fork truck bearing - Google Patents
The ball race grinding technique of high accuracy fork truck bearing Download PDFInfo
- Publication number
- CN106863073A CN106863073A CN201611241997.5A CN201611241997A CN106863073A CN 106863073 A CN106863073 A CN 106863073A CN 201611241997 A CN201611241997 A CN 201611241997A CN 106863073 A CN106863073 A CN 106863073A
- Authority
- CN
- China
- Prior art keywords
- raceway
- grinding
- corase grind
- fork truck
- high accuracy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/02—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements
- B24B19/06—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements for grinding races, e.g. roller races
-
- 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
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a kind of ball race grinding technique of high accuracy fork truck bearing, including corase grind raceway, fine grinding raceway and superfinishing raceway, the corase grind raceway and fine grinding raceway are processed using electric magnetic no-core grinding machine, balance of 0.12 0.15mm of raceway after the corase grind raceway, balance of 0.02 0.03mm of raceway after the fine grinding raceway, lateral feed during the corase grind raceway is 0.07 0.08mm/s, lateral feed during the fine grinding raceway is 0.015 0.02mm/s, and the rotating speed of Superfinishing machine is 420 450r/min during the superfinishing raceway.Through the above way, the present invention can reduce surface roughness, improve the machining accuracy of product, extend the service life of product, improve security performance.
Description
Technical field
The present invention relates to field of bearings, more particularly to a kind of ball race grinding technique of high accuracy fork truck bearing.
Background technology
Fork truck bearing is different from general plain bearing, and it will be better than general in quality on bearing material, in performance
Bearing.Fork truck is widely used in harbour, station, airport, goods yard, factory floor, warehouse, Transfer center and home-delivery center etc., and
Handling, the transport operation that pallet cargo is carried out in cabin, compartment and container can be entered, play in the logistics system of enterprise
Very important role, is the essential equipment of palletized transport, Container Transport, is mechanized handling, stacking and short distance
The high-efficiency appliance of transport, is the main force in material conveyance equipment.Self-propelled fork truck comes across 1917.World War II
Period, fork truck is developed.China manufactures fork truck since early 1950s.In particular with the quick hair of China's economic
Exhibition, the material handling of most of enterprise has had been detached from original a dead lift, the substitute is the machinery based on fork truck
Change and carry.Therefore, in the past few years, the demand in Chinese fork truck market is all increased with double-digit speed every year.
Almost every fork truck has a lowering or hoisting gear born compared with high dynamic and static load.It allows for withstanding
Strong collision, vibration and severe work condition environment in daily operation, such as hyperpyrexia, humidity, dust or Korrosionsmedium etc..
Therefore, the guiding mechanism of lowering or hoisting gear should be especially solid, and with remarkable holding capability.In order to ensure to lift weight
It is precisely mobile, it is necessary to mutually to be moved in the state of making door frame and goods shelf in low friction and almost without clearance.Existing fork truck
Bearing be all using external import bearing, the bearing of domestic production due in the defect for being difficult to overcome present on process technology,
It is extremely difficult to use requirement.
The content of the invention
The present invention solves the technical problem of：In view of the shortcomings of the prior art, there is provided a kind of high accuracy fork truck bearing
Ball race grinding technique, can reduce surface roughness, improve the machining accuracy of product, extend the service life of product, improve
Security performance.
In order to solve the above technical problems, one aspect of the present invention is：A kind of high accuracy fork truck bearing is provided
Ball race grinding technique, including corase grind raceway, fine grinding raceway and superfinishing raceway, the corase grind raceway and fine grinding raceway use electromagnetism
Centerless grinder is processed, the balance of 0.12-0.15mm of raceway after the corase grind raceway, more than the raceway after the fine grinding raceway
It is 0.02-0.03mm to measure, and the lateral feed during corase grind raceway is 0.07-0.08mm/s, the horizontal stroke during fine grinding raceway
It is 0.015-0.02mm/s to the amount of feeding, the rotating speed of Superfinishing machine is 420-450r/min during the superfinishing raceway.
In a preferred embodiment of the present invention, the emery wheel when corase grind raceway and fine grinding raceway is aluminum oxide or CBN
Abrasive grinding wheel.
In a preferred embodiment of the present invention, the oilstone during superfinishing raceway is that white fused alumina and green silicon carbide mix
Material oilstone.
In a preferred embodiment of the present invention, the grinding speed when corase grind raceway and fine grinding raceway is 19m/s.
In a preferred embodiment of the present invention, the oilstone linear velocity during superfinishing raceway is 21 m/s.
In a preferred embodiment of the present invention, the workpiece rotational frequency when corase grind raceway and fine grinding raceway is 355rpm.
The beneficial effects of the invention are as follows：Technological parameter when being processed with lappingout by optimizing grinding, reduces surface thick
Rugosity so that lasso raceway roughness is less than 0.1 μm, while improving the machining accuracy of product, makes precision reach P4 grades, finally prolongs
The service life of long products, improves security performance.
Specific embodiment
Presently preferred embodiments of the present invention is described in detail below so that advantages and features of the invention can be easier to by
It will be appreciated by those skilled in the art that apparent clearly being defined so as to be made to protection scope of the present invention.
The embodiment of the present invention includes：
A kind of ball race grinding technique of high accuracy fork truck bearing, including corase grind raceway, fine grinding raceway and superfinishing raceway, the corase grind
Raceway and fine grinding raceway are processed using electric magnetic no-core grinding machine, the balance of 0.12-0.15mm of raceway after the corase grind raceway,
The balance of 0.02-0.03mm of raceway after the fine grinding raceway, the lateral feed during corase grind raceway is 0.07-
0.08mm/s, the lateral feed during fine grinding raceway is 0.015-0.02mm/s, and Superfinishing machine turns during the superfinishing raceway
Speed is 420-450r/min.
Emery wheel when the corase grind raceway and fine grinding raceway is aluminum oxide or CBN abrasive grinding wheels, with high rigidity, high-ductility
Property, the features such as cutting power is strong, machined surface quality can be improved, and be remarkably improved workpiece fatigue strength；Emery wheel during grinding
Linear velocity is 19m/s, can reduce grinding crack and burn, improves grinding surface quality.
Oilstone during the superfinishing raceway is white fused alumina and green silicon carbide compound oilstone, with uniform cutting energy
Power, can reduce the roughness on lappingout surface, and cutting speed is fast, it is possible to increase grinding surface quality.
Oilstone linear velocity during the superfinishing raceway is 21 m/s, can reduce surface roughness.
Workpiece rotational frequency when the corase grind raceway and fine grinding raceway is 355rpm, and surface is reduced while cutting force is improved
Roughness.
Present invention is disclosed a kind of ball race grinding technique of high accuracy fork truck bearing, added with lappingout by optimizing grinding
The technological parameter in man-hour, reduces surface roughness so that lasso raceway roughness is less than 0.1 μm, while improving the processing of product
Precision, makes precision reach P4 grades, the service life of final extension product, improves security performance.
Embodiments of the invention are the foregoing is only, the scope of the claims of the invention is not thereby limited, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright description is made, or directly or indirectly it is used in other related technology necks
Domain, is included within the scope of the present invention.
Claims (6)
1. a kind of ball race grinding technique of high accuracy fork truck bearing, including corase grind raceway, fine grinding raceway and superfinishing raceway, its feature
It is that the corase grind raceway and fine grinding raceway are processed using electric magnetic no-core grinding machine, the raceway surplus after the corase grind raceway
It is 0.12-0.15mm, the balance of 0.02-0.03mm of raceway after the fine grinding raceway, the traverse feed during corase grind raceway
It is 0.07-0.08mm/s to measure, and the lateral feed during fine grinding raceway is 0.015-0.02mm/s, is surpassed during the superfinishing raceway
The rotating speed of smart machine is 420-450r/min.
2. the ball race grinding technique of high accuracy fork truck bearing according to claim 1, it is characterised in that the corase grind raceway
Emery wheel during with fine grinding raceway is aluminum oxide or CBN abrasive grinding wheels.
3. the ball race grinding technique of high accuracy fork truck bearing according to claim 1, it is characterised in that the superfinishing raceway
When oilstone be white fused alumina and green silicon carbide compound oilstone.
4. the ball race grinding technique of high accuracy fork truck bearing according to claim 1, it is characterised in that the corase grind raceway
Grinding speed during with fine grinding raceway is 19m/s.
5. the ball race grinding technique of high accuracy fork truck bearing according to claim 1, it is characterised in that the superfinishing raceway
When workpiece peripheral velocity be 23m/min.
6. the ball race grinding technique of high accuracy fork truck bearing according to claim 1, it is characterised in that the corase grind raceway
Workpiece rotational frequency during with fine grinding raceway is 355rpm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611241997.5A CN106863073A (en) | 2016-12-29 | 2016-12-29 | The ball race grinding technique of high accuracy fork truck bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611241997.5A CN106863073A (en) | 2016-12-29 | 2016-12-29 | The ball race grinding technique of high accuracy fork truck bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106863073A true CN106863073A (en) | 2017-06-20 |
Family
ID=59164959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611241997.5A Pending CN106863073A (en) | 2016-12-29 | 2016-12-29 | The ball race grinding technique of high accuracy fork truck bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106863073A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3918894B2 (en) * | 1998-10-30 | 2007-05-23 | 日本精工株式会社 | Rotating processing apparatus and rotating processing method for ring-shaped workpiece |
| CN102990492A (en) * | 2012-12-10 | 2013-03-27 | 中山市盈科轴承制造有限公司 | Machining technology for grinding double bearing tracks and equipment thereof |
| CN103921212A (en) * | 2014-04-28 | 2014-07-16 | 洛阳轴研科技股份有限公司 | Method for grinding ball track of large thin-wall bearing inner ring |
| CN104149009A (en) * | 2014-07-28 | 2014-11-19 | 新昌县南明街道锦泰机械厂 | Method for grinding conical raceways of bearing races |
| CN105798711A (en) * | 2016-03-21 | 2016-07-27 | 羊丁 | Grinding device and process for outer ring of bearing |
-
2016
- 2016-12-29 CN CN201611241997.5A patent/CN106863073A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3918894B2 (en) * | 1998-10-30 | 2007-05-23 | 日本精工株式会社 | Rotating processing apparatus and rotating processing method for ring-shaped workpiece |
| CN102990492A (en) * | 2012-12-10 | 2013-03-27 | 中山市盈科轴承制造有限公司 | Machining technology for grinding double bearing tracks and equipment thereof |
| CN103921212A (en) * | 2014-04-28 | 2014-07-16 | 洛阳轴研科技股份有限公司 | Method for grinding ball track of large thin-wall bearing inner ring |
| CN104149009A (en) * | 2014-07-28 | 2014-11-19 | 新昌县南明街道锦泰机械厂 | Method for grinding conical raceways of bearing races |
| CN105798711A (en) * | 2016-03-21 | 2016-07-27 | 羊丁 | Grinding device and process for outer ring of bearing |
Non-Patent Citations (2)
| Title |
|---|
| 刘吉远等: "《铁路货车轮轴技术概论》", 30 October 2009, 中国铁道出版社 * |
| 李春生等: "电磁无心夹具的原理及参数调整", 《机械工程师》 * |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170620 |