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CN106000880A - Precautionary approach for defects of bearing steel balls - Google Patents

Precautionary approach for defects of bearing steel balls Download PDF

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Publication number
CN106000880A
CN106000880A CN201610386732.8A CN201610386732A CN106000880A CN 106000880 A CN106000880 A CN 106000880A CN 201610386732 A CN201610386732 A CN 201610386732A CN 106000880 A CN106000880 A CN 106000880A
Authority
CN
China
Prior art keywords
defects
steel ball
steel balls
sorting
finished product
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
Application number
CN201610386732.8A
Other languages
Chinese (zh)
Inventor
马国伟
孙心灵
牛同
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WUXI CITY FEI YUN STEEL BALL CO Ltd
Original Assignee
WUXI CITY FEI YUN STEEL BALL CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by WUXI CITY FEI YUN STEEL BALL CO Ltd filed Critical WUXI CITY FEI YUN STEEL BALL CO Ltd
Priority to CN201610386732.8A priority Critical patent/CN106000880A/en
Publication of CN106000880A publication Critical patent/CN106000880A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B9/00Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07CPOSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/34Sorting according to other particular properties

Landscapes

  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

The invention discloses a precautionary approach for defects of bearing steel balls. The steel balls in different processes are sorted through a roller and a rolling bar for many times and conducted with finished product photoelectric detection, the defects of sorting are mutually remedied to enable the defects causing abnormal noise of bearings to be fully removed, and the steel ball products are delivered without defects. The precautionary approach for the defects of the bearing steel balls comprises the following steps: roller sorting before deflashing the balls, roller sorting before hard grinding, rolling bar sorting after hard grinding, roller sorting before initial lapping, rolling bar sorting after initial lapping and finished product photoelectric detection. The precautionary approach is capable of not only making up for the deficiency that an automatic steel ball surface detecting instrument for the finished product photoelectric detection cannot identify the steel balls with the major defects, but also guaranteeing the machining quality of the steel balls through repeated sorting. Through long-term customer detection feedback, the precautionary approach enables the steel balls to be delivered without defects.

Description

A kind of prevention method of bearing steel ball defect
Technical field
The present invention relates to the technical field that bearing steel ball manufactures, the prevention method of a kind of bearing steel ball.
Background technology
The defect of bearing steel ball seriously restricts the quality of bearing, constantly causes bearing abnormal sound big, and causes bearing life The shortest.And the lifting of product quality, a lot of Bearing Factories propose zero-fault requirement to steel ball, and manually pick ball and light by current Electro-detection is difficult to ensure that all defect ball can be rejected.
Summary of the invention
For the problems referred to above, the prevention method of the present invention a kind of bearing steel ball defect, described technique is by adding each road Use the different equipment repeatedly to sort after work operation, it is to avoid artificial unreliability, both improve efficiency, and in turn ensure that The zero-fault of steel ball product is dispatched from the factory.
It is characterized in that: it comprise the steps: photosphere front roll sort → hard grind front roll sorts → hard grind after rolling bar Sort → early grind front roll sorts → early grind after rolling bar sort → finished product Photoelectric Detection.Roughly selected by front operation and reject the big of steel ball Defect, sorts the rejecting general defect of steel ball by No. 2 rolling bars afterwards, finally by finished product Photoelectric Detection, rejects all steel balls little scarce Fall into.
Detailed description of the invention
It comprises the following steps:
, photosphere front roll sorts: cold heading sphere is put into than cold heading sphere size itself in the cylinder of the mesh of little about 30, cold Upsetting ball warp crosses the cylinder of rotation, and the big defect such as the broken end in cold heading sphere, unformed ball, red head shoot is removed, just through the leakage of cylinder mesh Often ball flows in accepted container;
(2), hard grind front roll sorts: the heat treatment ball after cleaning is put into the rolling of the mesh of little about 20 than heat treatment ball In cylinder, heat treatment ball warp overwinding tumbler cylinder, iron plate in heat treatment ball and the big defect of steel ball of more than 20 are through cylinder mesh Leakage removes, and normal ball flows in accepted container;
(3), after hard grind, rolling bar sorts: the steel ball after hard grind is put on steel ball rolling bar grading machine, the defect of little more than 5um Ball carries out leakage and removes, and normal ball flows in accepted container;
, early grind front roll sorts: the steel ball after surface peening put into than little about 10 of hard grind ball size mesh Cylinder in, strengthening ball warp crosses the cylinder of rotation, and the big defect of steel ball of more than 10 is leaked through cylinder mesh and removed, and normal ball flows to In accepted container;
, rolling bar sorts after early grind: the steel ball after early grind is put on high accuracy rolling bar grading machine, lacking little more than 2um Sunken ball carries out leakage and removes, and normal ball flows in qualified ball;
, finished product Photoelectric Detection: finished product clean after steel ball, put in steel ball surface automatic tester, by steel ball Surface amplifies 10 times, through Computer-generated images software identification, simultaneously through the upset system of steel ball, makes 360 degree of rotations 5 of steel ball surface ~ 8 times, it is ensured that each point of steel ball can be recognized by computer software, whole for the steel ball defect having influence on bearing assemble abnormal sound Reject.Simultaneously before photoelectricity and after photoelectricity, whether may be used by No. 2 steel ball defect standard ball checking steel ball surface automatic testers Lean on, it is ensured that the reliability of steel ball surface automatic tester equipment.
The innovation of the present invention is:
1, sort through 3 cylinders before finished product Photoelectric Detection and sort with No. 2 rolling bars, automatically controlling at utmost by equipment On avoid and cannot overturn through steel ball surface automatic tester big defect steel ball, cause big defect bad shot to leak the problem picked, make Steel ball has accomplished that zero-fault is dispatched from the factory substantially;
2, No. 2 steel ball defect standard checking steel ball surface automatic testers are passed through before finished product Photoelectric Detection carries out detection and after detection The reliability of equipment, thus ensure that steel ball surface automatic tester equipment is reliable, it is ensured that the zero-fault of steel ball is dispatched from the factory.

Claims (3)

1. the prevention method of a bearing steel ball defect, it is characterised in that following steps: photosphere front roll sorts → hard grind before roll Cylinder sorts → hard grind after rolling bar sort → early grind front roll sorts → early grind after rolling bar sort → finished product Photoelectric Detection.
2. the prevention method of a kind of bearing steel ball defect required according to right 1, it is characterised in that in finished product Photoelectric Detection Front sorting through 3 cylinders sorts with No. 2 rolling bars.
3. the prevention method of a kind of bearing steel ball defect required according to right 1, it is characterised in that finished product Photoelectric Detection is real By the reliability of No. 2 steel ball defect standards checking steel ball surface automatic tester equipment before row detection and after detection.
CN201610386732.8A 2016-06-05 2016-06-05 Precautionary approach for defects of bearing steel balls Pending CN106000880A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610386732.8A CN106000880A (en) 2016-06-05 2016-06-05 Precautionary approach for defects of bearing steel balls

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610386732.8A CN106000880A (en) 2016-06-05 2016-06-05 Precautionary approach for defects of bearing steel balls

Publications (1)

Publication Number Publication Date
CN106000880A true CN106000880A (en) 2016-10-12

Family

ID=57089326

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610386732.8A Pending CN106000880A (en) 2016-06-05 2016-06-05 Precautionary approach for defects of bearing steel balls

Country Status (1)

Country Link
CN (1) CN106000880A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201429585Y (en) * 2009-07-06 2010-03-24 济南大学 A device for eddy current phase-sensitive detection and quality sorting control of bearing steel ball defects
CN101799048A (en) * 2010-03-08 2010-08-11 江苏力星钢球有限公司 Manufacturing process of high-speed precision bearing steel ball
EP2343136A1 (en) * 2008-10-28 2011-07-13 Panasonic Corporation Assorting method
CN102319991A (en) * 2011-09-30 2012-01-18 中山市乾润精密钢球制造有限公司 A kind of manufacturing method of micro steel ball
CN102921545A (en) * 2012-10-31 2013-02-13 中山市乾润精密钢球制造有限公司 Steel ball separation system and method
CN203470359U (en) * 2013-08-14 2014-03-12 王建 Bearing steel ball checking device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2343136A1 (en) * 2008-10-28 2011-07-13 Panasonic Corporation Assorting method
CN201429585Y (en) * 2009-07-06 2010-03-24 济南大学 A device for eddy current phase-sensitive detection and quality sorting control of bearing steel ball defects
CN101799048A (en) * 2010-03-08 2010-08-11 江苏力星钢球有限公司 Manufacturing process of high-speed precision bearing steel ball
CN102319991A (en) * 2011-09-30 2012-01-18 中山市乾润精密钢球制造有限公司 A kind of manufacturing method of micro steel ball
CN102921545A (en) * 2012-10-31 2013-02-13 中山市乾润精密钢球制造有限公司 Steel ball separation system and method
CN203470359U (en) * 2013-08-14 2014-03-12 王建 Bearing steel ball checking device

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Application publication date: 20161012