CN2175666Y - Lapping disc for eccentric circle channel - Google Patents

Lapping disc for eccentric circle channel Download PDF

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Publication number
CN2175666Y
CN2175666Y CN93240159U CN93240159U CN2175666Y CN 2175666 Y CN2175666 Y CN 2175666Y CN 93240159 U CN93240159 U CN 93240159U CN 93240159 U CN93240159 U CN 93240159U CN 2175666 Y CN2175666 Y CN 2175666Y
Authority
CN
China
Prior art keywords
ball
abrasive disk
grinding
grinded
groove
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.)
Expired - Fee Related
Application number
CN93240159U
Other languages
Chinese (zh)
Inventor
任成祖
林彬
徐燕申
傅佑同
彭泽民
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.)
Tianjin University
Original Assignee
Tianjin University
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 Tianjin University filed Critical Tianjin University
Priority to CN93240159U priority Critical patent/CN2175666Y/en
Application granted granted Critical
Publication of CN2175666Y publication Critical patent/CN2175666Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

The utility model relates to a grinding disc for eccentric circle slots, belonging to a ball grinding tool matched with a ball grinding machine to use. An offset is arranged between the circle center of the slot on a rotary grinding disc or a fixed grinding disc and the rotary center of the rotary grinding disc, and the size is selected between 3 mm and 50 mm according to the diameter and the material of the grinded ball. Each point on the grinded ball surface has approximately equal grinding chance. The grinded ball has high precision. The utility model can be suitable for grinding various balls, and is especially suitable for the grinding process of the rolling balls of bearings.

Description

Lapping disc for eccentric circle channel
The utility model belongs to the attrition process instrument.
Abrasive disk is and the matching used ball machining tool of ball lapping machine, it by mutual opposed rotation abrasive disk and fixedly abrasive disk form, have groove on the dish therein, ball chuck is held in the groove, abrasive disk is rotated in rotation, and ball is carried out attrition process.The groove center of circle on the abrasive disk, concentric with the centre of gyration that rotates abrasive disk, in the course of work, the grinder that is ground each point on the sphere can differ greatly, and can only lean on as far as possible with the arc and the systemic circulation lapping mode that are ground the abrasive disk trench cross section that sphere matches and remedy this shortcoming.But the ball precision of grinding out is lower, generally is difficult to reach three grades of ball precision levels that GB GB308-84 requires.
The purpose of this utility model is ground ball characteristics of motion under constraints according to quilt, and a kind of new construction abrasive disk of off-centre operation groove is provided, and makes the grinder that is ground each point on the sphere can be similar to equalization, thereby improves the accuracy class of being ground ball.
Main points of the present utility model are to rotate abrasive disk or fixedly between the centre of gyration of the groove center of circle on the abrasive disk and rotation abrasive disk an offset is arranged.
Fig. 1 is for rotating abrasive disk or fixing abrasive disk working face groove arranged off-centre schematic diagram.
The 1-groove center of circle among the figure, 2-groove center line, 3-rotates the abrasive disk centre of gyration, and 4-rotates the abrasive disk inner edge, and 5-rotates the abrasive disk outer rim.
The contrast accompanying drawing is further described the utility model below.
As seen from the figure, rotate abrasive disk or fixedly between the abrasive disk groove center of circle 1 and the rotation abrasive disk centre of gyration 3 eccentric amount e is arranged.The size of eccentric amount e is selected in 3~50mm scope according to diameter that is ground ball and material.
Because the existence of eccentric amount e is compared with traditional ball abrasive disk, ground ball in process of lapping, increased additional rotatablely moving, and the angular speed that this rotatablely moves changes in time according to certain rules, and the grinding track that is ground on the sphere is approximate evenly to distribute thereby make.As long as the groove eccentric amount e is selected rationally, adopt the utility model off-centre operation groove abrasive disk, the ball that grinds out is easy to reach three grades of ball precision levels of GB GB308-84 regulation.
For example the inventor uses the abrasive disk of eccentric amount e as 10mm, grinds the ZrO of φ 19.05 2Ball, spherical volume difference only is 0.06 μ m, has reached (spherical deviation is no more than 0.08 μ m) three grades of ball levels of GB GB308-84 regulation.
The utility model is scientific and reasonable for structure, has improved ball machining accuracy and efficient, can be used for the grinding of various balls, is specially adapted to the attrition process of bearing ball.

Claims (1)

1, off-centre operation groove abrasive disk, by rotate abrasive disk and fixedly abrasive disk form, rotating abrasive disk or fixedly having groove on the abrasive disk, it is characterized in that, rotate abrasive disk or fixedly between the groove center of circle on the abrasive disk and the rotation abrasive disk centre of gyration offset is arranged.
CN93240159U 1993-09-29 1993-09-29 Lapping disc for eccentric circle channel Expired - Fee Related CN2175666Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN93240159U CN2175666Y (en) 1993-09-29 1993-09-29 Lapping disc for eccentric circle channel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN93240159U CN2175666Y (en) 1993-09-29 1993-09-29 Lapping disc for eccentric circle channel

Publications (1)

Publication Number Publication Date
CN2175666Y true CN2175666Y (en) 1994-08-31

Family

ID=33814486

Family Applications (1)

Application Number Title Priority Date Filing Date
CN93240159U Expired - Fee Related CN2175666Y (en) 1993-09-29 1993-09-29 Lapping disc for eccentric circle channel

Country Status (1)

Country Link
CN (1) CN2175666Y (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103433842A (en) * 2013-09-23 2013-12-11 南通龙源电站阀门有限公司 Eccentric grinding tool of valve body
CN103991025A (en) * 2014-05-21 2014-08-20 浙江工业大学 High-accuracy ball body machining method through eccentric type curvature-variable groove
CN103991018A (en) * 2014-05-21 2014-08-20 浙江工业大学 High-accuracy sphere machining device based on eccentric variable-curvature V-shaped grooved disc
CN104493689A (en) * 2014-12-16 2015-04-08 天津大学 Double-disc straight-groove grinding disc for surfaces of cylindrical parts

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103433842A (en) * 2013-09-23 2013-12-11 南通龙源电站阀门有限公司 Eccentric grinding tool of valve body
CN103991025A (en) * 2014-05-21 2014-08-20 浙江工业大学 High-accuracy ball body machining method through eccentric type curvature-variable groove
CN103991018A (en) * 2014-05-21 2014-08-20 浙江工业大学 High-accuracy sphere machining device based on eccentric variable-curvature V-shaped grooved disc
CN104493689A (en) * 2014-12-16 2015-04-08 天津大学 Double-disc straight-groove grinding disc for surfaces of cylindrical parts

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee