CN101767301B - Method for grinding shaft pivot bearing raceways - Google Patents
Method for grinding shaft pivot bearing raceways Download PDFInfo
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- CN101767301B CN101767301B CN2010100301227A CN201010030122A CN101767301B CN 101767301 B CN101767301 B CN 101767301B CN 2010100301227 A CN2010100301227 A CN 2010100301227A CN 201010030122 A CN201010030122 A CN 201010030122A CN 101767301 B CN101767301 B CN 101767301B
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- connecting shaft
- positioning sleeve
- pivot bearing
- axle connecting
- grinding
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Abstract
The present invention relates to a method for grinding shaft pivot bearing raceways. A locating sleeve (3) and a benchmark sleeve (6) are firstly processed, and the inner diameter of the locating sleeve (3) or the benchmark sleeve (6) is the same with the outer diameter of a shaft pivot bearing (2), and slidably fits with the outer diameter of the shaft pivot bearing (2). The long shaft end surface of the shaft pivot bearing (2) is used as the locating benchmark, and the benchmark sleeve (6) and the locating sleeve (3) are respectively sheathed on the shaft pivot bearing (2). The locating sleeve (3) abuts against the raceway part of the long shaft of the shaft pivot bearing (2) and is fixed, the long shaft end of the shaft pivot bearing (2) is arranged in the electromagnetic centerless clamp (1) of a centerless grinder, and the end surface of the locating sleeve (3) abuts against the end surface of the electromagnetic centerless clamp (1). Two radial supports are arranged at the short shaft ends of the shaft pivot bearing (2). The first radial support (4) is horizontally arranged at the short shaft right end of the shaft pivot bearing (2), corresponding to a grinding wheel (5) at the left end. The second radial support (7) is perpendicularly arranged at the lower end of the short shaft of the shaft pivot bearing (2). As long as the centerless grinder is started, the raceway of the shaft pivot bearing can be primarily ground or finally ground. The locating sleeve or the benchmark sleeve is quickly and conveniently clamped, the operation is simple, raceway grinding quality is stable, and finished product rate is improved.
Description
Technical field
The invention belongs to the bearing grinding technical field, specially refer to a kind of method for grinding shaft pivot bearing raceways in the Coupling bearing.
Background technology
Axle connecting shaft in the axle Coupling bearing is owing to draw ratio＞4, so belong to the slender axles type.Usually design has raceway groove on the axle connecting shaft, and this raceway groove needs grinding to form.
The axle connecting shaft will carry out the clamping location at the two ends centering and with the two ends centre bore when Vehicle Processing, during grinding the axle connecting shaft is installed on " the heart anchor clamps " of general-purpose grinder, the rotation of shifting shaft connecting shaft is with the pre-profiling of grinding raceway groove then, the two ends centre bore be to grind earlier after the heat treatment, external diameter and raceway groove ground again.
The shortcoming of above-mentioned processing method is:
The tolerance of the two ends centre bore degree of depth is bigger, has influence on axial location reference dimension and changes greatly, makes the raceway groove center after the grinding and the position dimension of datum end face relatively disperse, and percent defective is higher, and grinding efficiency is low, directly has influence on the yield rate of a connecting shaft.
Summary of the invention
In order to address the above problem, the invention provides a kind of method for grinding shaft pivot bearing raceways, this raceway groove grinding processing method does not need machining center hole on two end faces of axle connecting shaft, by designed frock jig and cooperate centerless grinder to realize the grinding of axle connecting shaft raceway groove, improved the working (machining) efficiency of axle connecting shaft.
For achieving the above object, the present invention has adopted following technical scheme:
Described a kind of method for grinding shaft pivot bearing raceways, it is the one cover frock jig of design earlier, this frock jig comprises positioning sleeve and benchmark cover, positioning sleeve has identical external diameter with the benchmark cover, the external diameter of the internal diameter=axle connecting shaft of positioning sleeve or benchmark cover and join with axle connecting shaft external diameter cunning, the joint of positioning sleeve width+benchmark cover width+grinding gap=axle connecting shaft raceway groove arc surface and its external diameter arrives an axial length of connecting shaft major axis end face; With axle connecting shaft major axis end face serves as that the location benchmark puts benchmark cover and positioning sleeve respectively on the axle connecting shaft, positioning sleeve is near the raceway groove place of axle connecting shaft major axis, axle connecting shaft major axis end face and benchmark cover are leaned against the alignment of platform end face simultaneously, then with positioning sleeve near the benchmark cover, by the bolt that disposes on the positioning sleeve positioning sleeve is fixed on the connecting shaft, it is standby to remove positioning sleeve at last; Pack into the longitudinal end of axle connecting shaft on the electric magnetic no-core clamp of centerless grinder and the end face of positioning sleeve near the end face of electric magnetic no-core clamp, minor axis end at the axle connecting shaft is provided with two radial supports, first radial support is horizontally set on a connecting shaft minor axis right-hand member and relative with the abrasive grinding wheel of left end, second radial support is vertically set on a lower end of connecting shaft minor axis, open centerless grinder, can implement first grinding processing or final grinding axle connecting shaft raceway groove.
Described a kind of method for grinding shaft pivot bearing raceways, join and be drilled with radially internal thread hole at 1/2 place of positioning sleeve width, this internal thread hole is communicated with the internal diameter and the external diameter of positioning sleeve, the axiality of positioning sleeve internal diameter is controlled at≤1 μ in, the positioning sleeve two radial end face depth of parallelisms are controlled at≤1 μ in, the perpendicularity of positioning sleeve internal diameter center line and two radial end faces is controlled at≤1 μ in, the clearance control that positioning sleeve internal diameter and axle connecting shaft external diameter cunning are joined is in 5～15 μ scopes.
Described a kind of method for grinding shaft pivot bearing raceways, benchmark cover internal diameter center line be controlled at the perpendicularity of two radial end faces≤2 μ in, benchmark cover internal diameter and a clearance control that connecting shaft external diameter cunning is joined are in 0.1～0.3mm scope.
Described a kind of method for grinding shaft pivot bearing raceways, the grinding clearance control is in 3～5mm scope.
Owing to adopted aforesaid technical scheme, the present invention has following superiority:
1, frock jig of the present invention is simple in structure, is convenient to processing and manufacturing.
2, the present invention serves as the location benchmark with axle connecting shaft major axis end face, and the internal diameter in conjunction with the frock jig has the favorable manufacturability energy with closely cooperating of axle connecting shaft external diameter simultaneously.
3, because the present invention does not adopt the locate mode of two ends centre bore to the axle connecting shaft, not only the external diameter working (machining) efficiency of axle connecting shaft increases, and the raceway groove grinding of axle connecting shaft also is guaranteed, and yield rate improves and also driven economic benefit.
4, use frock jig of the present invention efficient and convenient, simple to operate, grinding quality is stable.
Description of drawings
Fig. 1 is the structural representation of a connecting shaft;
Fig. 2 is the structural representation of positioning sleeve;
Fig. 3 is a general assembly processing schematic diagram;
Fig. 4 is the left view that Fig. 3 is;
Fig. 5 is the structural representation of benchmark cover;
Fig. 6 is the position location schematic diagram of a connecting shaft and benchmark cover and positioning sleeve;
Among the above-mentioned figure: the 1-electric magnetic no-core clamp; 2-axle connecting shaft; The 3-positioning sleeve; 4-first radial support; The 5-abrasive grinding wheel; 6-benchmark cover; 7-second radial support.
The specific embodiment
Fig. 1 is the structural representation of a connecting shaft, and nearest one section of distance axis connecting shaft 2 raceway grooves is called minor axis, and farthest one section of distance axis connecting shaft raceway groove is called major axis.Generally size is less for axle connecting shaft 2, and its raceway groove arc radius is littler, owing to belong to draw ratio (L/D＞4), supposes that length overall is 100mm, its external diameter≤25mm.
In conjunction with Fig. 2 and Fig. 5, a kind of method for grinding shaft pivot bearing raceways of the present invention, it is the one cover frock jig of design earlier, this frock jig comprises positioning sleeve 3 and benchmark cover 6, positioning sleeve has identical external diameter with the benchmark cover, the external diameter of the internal diameter=axle connecting shaft of positioning sleeve and benchmark cover and join with axle connecting shaft external diameter cunning, the joint of positioning sleeve width+benchmark cover width+grinding gap=axle connecting shaft raceway groove arc surface and its external diameter is to the axial length of axle connecting shaft major axis end face, and the grinding gap generally is controlled in 3～5mm scope.
Join and be drilled with radially internal thread hole at 1/2 place of positioning sleeve 3 width, this internal thread hole is communicated with the internal diameter and the external diameter of positioning sleeve, the axiality of positioning sleeve internal diameter is controlled at≤1 μ in, the positioning sleeve two radial end face depth of parallelisms are controlled at≤1 μ in, the perpendicularity of positioning sleeve internal diameter center line and two radial end faces is controlled at≤1 μ in, the clearance control that positioning sleeve internal diameter and axle connecting shaft external diameter cunning are joined is in 5～15 μ scopes.
Benchmark cover internal diameter center line is controlled at the perpendicularity of two radial end faces≤2 μ in, benchmark cover internal diameter and a clearance control that connecting shaft external diameter cunning is joined are in 0.1～0.3mm scope.
Positioning sleeve has identical external diameter with the benchmark cover, and this external diameter equates with the external diameter of electric magnetic no-core clamp.The joint of supposing a connecting shaft raceway groove arc surface and its external diameter is 30mm to an axial length of connecting shaft major axis end face, and the width of positioning sleeve is as being arranged on 6mm, and then the width of benchmark cover should be arranged on 30mm-6mm-(in 3～5mm)=19～21mm scope.The internal diameter of positioning sleeve and benchmark cover and the external diameter close fit of axle connecting shaft, a kind of axle connecting shaft of specification uses supporting positioning sleeve and benchmark cover, therefore positioning sleeve forms seriation with the benchmark cover along with the different of axle connecting shaft external diameter, simultaneously because positioning sleeve and benchmark cover use frequent, easy to wear, so positioning sleeve and benchmark cover need heat treatment, the hardness＞HRC61 after the heat treatment.
In conjunction with Fig. 6, with axle connecting shaft 2 major axis end faces serves as that the location benchmark puts benchmark cover 6 and positioning sleeve 3 respectively on the axle connecting shaft, positioning sleeve 3 is near the major axis raceway groove place of axle connecting shaft, axle connecting shaft major axis end face and benchmark cover are leaned against the alignment of platform end face simultaneously, then with positioning sleeve near the benchmark cover, by the bolt that disposes on the positioning sleeve positioning sleeve is fixed on the connecting shaft, it is standby to remove positioning sleeve at last.
In conjunction with Fig. 3 and Fig. 4 pack into the longitudinal end of axle connecting shaft 2 on the electric magnetic no-core clamp 1 of centerless grinder and the end face of positioning sleeve 3 near the end face of electric magnetic no-core clamp 1, minor axis end at axle connecting shaft 2 is provided with two radial supports, first radial support 4 is horizontally set on a connecting shaft minor axis right-hand member and relative with the abrasive grinding wheel 5 of left end, second radial support 7 is vertically set on a lower end of connecting shaft minor axis, open centerless grinder, can implement first grinding processing or final grinding axle connecting shaft raceway groove.The endoporus of electric magnetic no-core clamp magnetic pole is greater than a connecting shaft external diameter, and the degree of depth is greater than the size of positioning sleeve datum end face to axle connecting shaft major axis datum end face.Unclamp bolt after processing raceway groove, the axle connecting shaft that dismounting processes down can be processed axle connecting shaft next to be ground.First radial support 4 and second radial support 7 can together rotate with the axle connecting shaft, also can together not rotate with the axle connecting shaft, adopt the oil lubrication rubbing surface.
During use, an axle connecting shaft, positioning sleeve and benchmark cover are cleaned up earlier with gasoline, cleannes preferably on the platform accurate the overlapping of niche positioning sleeve is got final product by being bolted on the connecting shaft.
Claims (4)
1. method for grinding shaft pivot bearing raceways, it is characterized in that: be the one cover frock jig of design earlier, this frock jig comprises positioning sleeve (3) and benchmark cover (6), positioning sleeve has identical external diameter with the benchmark cover, the external diameter of the internal diameter=axle connecting shaft (2) of positioning sleeve or benchmark cover and join with axle connecting shaft external diameter cunning, positioning sleeve width+benchmark cover width+grinding gap=axle connecting shaft raceway groove arc surface arrives an axial length of connecting shaft major axis end face with the joint of axle connecting shaft external diameter; With axle connecting shaft major axis end face serves as that the location benchmark puts benchmark cover and positioning sleeve respectively on the axle connecting shaft, positioning sleeve is near the raceway groove place of axle connecting shaft major axis, axle connecting shaft major axis end face and benchmark cover are leaned against the alignment of platform end face simultaneously, then with positioning sleeve near the benchmark cover, by the bolt that disposes on the positioning sleeve positioning sleeve is fixed on the connecting shaft, it is standby to remove the benchmark cover at last; Pack the longitudinal end of axle connecting shaft into the electric magnetic no-core clamp (1) of centerless grinder gone up and the end face of positioning sleeve near the end face of electric magnetic no-core clamp, minor axis end at the axle connecting shaft is provided with two radial supports, first radial support (4) is horizontally set on a connecting shaft minor axis right-hand member and relative with the abrasive grinding wheel (5) of left end, second radial support (7) is vertically set on a lower end of connecting shaft minor axis, open centerless grinder, can implement first grinding processing or final grinding axle connecting shaft raceway groove.
2. a kind of method for grinding shaft pivot bearing raceways as claimed in claim 1, it is characterized in that: join and be drilled with radially internal thread hole at 1/2 place of positioning sleeve (3) width, this internal thread hole is communicated with the internal diameter and the external diameter of positioning sleeve, the axiality of positioning sleeve internal diameter is controlled at≤1 μ m in, the positioning sleeve two radial end face depth of parallelisms are controlled at≤1 μ m in, the perpendicularity of positioning sleeve internal diameter center line and two radial end faces is controlled at≤1 μ m in, the clearance control that positioning sleeve internal diameter and axle connecting shaft external diameter cunning are joined is in 5～15 mu m ranges.
3. a kind of method for grinding shaft pivot bearing raceways as claimed in claim 1, it is characterized in that: the perpendicularity of benchmark cover (6) internal diameter center line and two radial end faces is controlled at≤2 μ m in, the clearance control that benchmark cover internal diameter and axle connecting shaft external diameter cunning are joined is in 0.1～0.3mm scope.
4. a kind of method for grinding shaft pivot bearing raceways as claimed in claim 1 is characterized in that: the grinding clearance control is in 3～5mm scope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100301227A CN101767301B (en) | 2010-01-08 | 2010-01-08 | Method for grinding shaft pivot bearing raceways |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100301227A CN101767301B (en) | 2010-01-08 | 2010-01-08 | Method for grinding shaft pivot bearing raceways |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101767301A CN101767301A (en) | 2010-07-07 |
| CN101767301B true CN101767301B (en) | 2011-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010100301227A Expired - Fee Related CN101767301B (en) | 2010-01-08 | 2010-01-08 | Method for grinding shaft pivot bearing raceways |
Country Status (1)
| Country | Link |
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| CN (1) | CN101767301B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104385086B (en) * | 2014-09-29 | 2017-07-18 | 洛阳轴研科技股份有限公司 | A kind of grinding attachment and method for grinding for being used to be ground central spindle double-groove |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2694883A (en) * | 1952-04-04 | 1954-11-23 | Landis Tool Co | Concentric grinding machine |
| GB1023198A (en) * | 1964-02-14 | 1966-03-23 | Micromatic Hone Corp | Centreless honing device |
| US4009538A (en) * | 1975-01-08 | 1977-03-01 | John Hanecker | Fixture for converting a centerless grinder to a center grinder |
| CN101168240A (en) * | 2007-11-13 | 2008-04-30 | 瓦房店轴承集团有限责任公司 | Method for processing two column internal ball tracks by one grinding |
-
2010
- 2010-01-08 CN CN2010100301227A patent/CN101767301B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2694883A (en) * | 1952-04-04 | 1954-11-23 | Landis Tool Co | Concentric grinding machine |
| GB1023198A (en) * | 1964-02-14 | 1966-03-23 | Micromatic Hone Corp | Centreless honing device |
| US4009538A (en) * | 1975-01-08 | 1977-03-01 | John Hanecker | Fixture for converting a centerless grinder to a center grinder |
| CN101168240A (en) * | 2007-11-13 | 2008-04-30 | 瓦房店轴承集团有限责任公司 | Method for processing two column internal ball tracks by one grinding |
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| Publication number | Publication date |
|---|---|
| CN101767301A (en) | 2010-07-07 |
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Effective date of registration: 20180509 Address after: 471000 No. 1 axis research road, Jianxi science and Technology Industrial Park, Luoyang, Henan Patentee after: LUOYANG BEARING RESEARCH INSTITUTE Co.,Ltd. Address before: 471039 Fenghua Road 6, hi tech Development Zone, Luoyang, Henan. Patentee before: LUOYANG BEARING SCIENCE & TECHNOLOGY Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20220108 |
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| CF01 | Termination of patent right due to non-payment of annual fee |