CN105499938A - Sliding bearing machining process - Google Patents
Sliding bearing machining process Download PDFInfo
- Publication number
- CN105499938A CN105499938A CN201610068548.9A CN201610068548A CN105499938A CN 105499938 A CN105499938 A CN 105499938A CN 201610068548 A CN201610068548 A CN 201610068548A CN 105499938 A CN105499938 A CN 105499938A
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- sliding bearing
- grinding
- internal diameter
- grinder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/003—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rolling Contact Bearings (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention relates to a mechanical manufacturing process, and in particular relates to a process of manufacturing and material processing of sliding bearings. The invention discloses a sliding bearing machining process, comprising the following steps: blanking, end surface chamfering, end surface grinding, punching, chamfering of an oil filling hole, quenching and tempering, centerless grinding, squeezing, and surface grinding. Through the sliding bearing machining process, a sliding bearing is used for lowering frictional resistance of machine running, and is high in machining precision. On the premise of satisfying the machining precision of the sliding bearing, the efficiency and the product quality can be improved by the machining process.
Description
Technical field
The present invention relates to a kind of manufacturing technology, particularly relate to manufacture and the material treatment processes of sliding bearing.
Background technology
Utilize axle and bearing sliding motion and the bearing of bearing load on sliding bearing.According to the difference of sliding bearing two relative motion surface oil film formation basic theory.Hydrldynamic pressure lubrication bearing (also claiming hydrodynamic bearing) and hydrostatic bearing (also claiming hydrostatic bearing) can be divided into.Comparatively conventional is hydrldynamic pressure lubrication bearing, and it is brought into oil between two surfaces by the relative motion of axle and bearing, forms enough pressure membrane, is separated on two surfaces, thus bearing load.Under hydrodynamic lubrication condition, the undeveloped life of the lubricated oil content of slidingsurface directly contacts, and can also greatly reduce friction loss and surface abrasion, oil film also has certain vibration absorption ability.But starting friction resistance is larger.Axle is called axle journal by the part that bearing supports, and the part matched with axle journal is called bearing shell.
Summary of the invention
The object of the present invention is to provide a kind of sliding bearing processing technology, sliding bearing is used at the frictional resistance reducing machine operation, have higher machining accuracy, the processing technology that the present invention proposes, under the prerequisite meeting sliding bearing machining accuracy, improves efficiency and improves the quality of product.
For achieving the above object, the invention discloses a kind of sliding bearing processing technology, comprise the following steps:
A, blanking: the original blank of blanking is tubulose bar, in the length of sawing machine length according to sliding bearing, original blank is cut, obtain the primary blank of sliding bearing, the external diameter 0.1mm-0.2mm larger than the external diameter of sliding bearing final products of described original blank, the internal diameter 0.1mm-0.2mm less of the internal diameter of sliding bearing final products of described original blank;
B, end chamfer: two of described sliding bearing end faces are carried out chamfer machining;
C, cross grinding: on surface grinding machine, grinding is carried out to two end faces of sliding bearing;
D, punching: on the sidewall of sliding bearing, have oil filler point, be fixed on sliding bearing on punch press, adopts punch process mode to produce described oil filler point;
E, oil filler point chamfering: utilize chamfering device, described oil filler point processes chamfering;
F, modifier treatment: carry out modifier treatment to sliding bearing, to improve its combination property;
G, centreless grinding: on centerless grinder, centreless grinding processing is carried out to the surfaces externally and internally of sliding bearing, obtain the openpore of sliding bearing, make obtained described openpore external diameter 0.05mm-0.10mm less of the external diameter of sliding bearing final products, described openpore internal diameter 0.05mm-0.10mm less of the internal diameter of sliding bearing final products;
H, extruding: on forcing press, extrude the core of circle and pass through in the internal diameter of sliding bearing, the external diameter 0.02mm-0.05mm larger than the internal diameter of sliding bearing final products of described core, and the material of described core is wolfram steel material, and hardness is HRC89;
I, destressing process: the sliding bearing being walked preparation by H is put into annealing furnace and does stress relief annealing process;
J, centreless grinding: on centerless grinder, centreless grinding processing is carried out to the surfaces externally and internally of sliding bearing, obtain the openpore of sliding bearing, make obtained described openpore external diameter 0.02mm-0.03mm less of the external diameter of sliding bearing final products, described openpore internal diameter 0.02mm-0.03mm less of the internal diameter of sliding bearing final products;
K, grinding extruding: on forcing press, the core of circle toward grinding in the internal diameter of sliding bearing, extruding passing through, the rotating speed of described core is 2000r/min, and the extruding feed speed of described core is 200mm/min; The external diameter 0.02mm-0.03mm larger than the internal diameter of sliding bearing final products of described core, the matrix of described core is wolfram steel material, surface has diamond coatings, and hardness is HRC89;
L, surface grinding: grind in spiral vibrating finishing machine, comprise the following steps:
Before the grinding of a, sliding bearing, sliding bearing must be adopted degreasing oil carry out de-oiling, decontamination process;
B, general
ceramic particle put in the container in spiral vibrating finishing machine, use afterwards in water eluant container
ceramic particle, add water and do not have
ceramic particle, open grinder 3 minutes, discharge water, then repeat once, will
the antirust agent of ceramic grain surface clean, after rinsing well, close the delivery port of grinder;
C, add in previous step in container flushed
ceramic particle, water, brightener, open grinder, make grinder start vibration, vibrate after 3 minutes, make grinder stop vibrate;
D, in said vesse, put into clean sliding bearing, make grinder vibrate afterwards, then control to add water with autotimer, wherein add a water every seven, eight minutes; Wherein measure every seven, eight minutes external diameters to sliding bearing and internal diameter, when the size of external diameter and internal diameter reaches requirement, grinder stops vibration;
After e, vibro-grinding terminate, sliding bearing is taken out, gets rid of part of anhydrating, put into oil pan and soak;
F, opened by water outlet of container, discharge water, add water flushing afterwards again, and close delivery port, add water flushing
ceramic particle, open grinder and vibrate 10 minutes, discharge water, then repeat flushing more than 3 times, until the brightener in container is cleaned, discharge water, close grinder, close the delivery port of grinder;
G, last, sliding bearing is clean terminate after, will
ceramic particle in add sodium nitrite solution, maintenance
ceramic particle to recycle.
Compare with conventional art, the invention has the beneficial effects as follows:
Adopt tubulose bar as original blank, the external diameter 0.1mm-0.2mm larger than the external diameter of sliding bearing final products of described original blank, the internal diameter 0.1mm-0.2mm less of the internal diameter of sliding bearing final products of described blank.The accurate assurance of surplus, effectively improves the efficiency of subsequent processing operations.After being processed by centreless grinding, dimension of inner and outer diameters can fast approaching accurate size.
Oil filler point adopts punch process mode to manufacture, compare with traditional Drilling operation, and improved efficiency is more than 3 times, and prepared oil filler point burr is few, and circularity is good.
After the processing of step G centreless grinding, make obtained described openpore external diameter 0.05mm-0.10mm less of the external diameter of sliding bearing final products, described openpore internal diameter 0.05mm-0.10mm less of the internal diameter of sliding bearing final products.Step G centreless grinding is processed as corase grind processing, and the emery wheel used emery wheel used compared with step J centreless grinding is thick.The stock-removing efficiency that the stock-removing efficiency that described step G centreless grinding machining obtains obtains than step J centreless grinding machining is high, the removal amount of material greatly, with quickly close to accurate size.
Through step I destressing process, eliminate the internal stress of sliding bearing, make the machining accuracy of sliding bearing can obtain good reservation.
After the processing of step J centreless grinding, make obtained described openpore external diameter 0.02mm-0.03mm less of the external diameter of sliding bearing final products, described openpore internal diameter 0.02mm-0.03mm less of the internal diameter of sliding bearing final products.The emery wheel that the emery wheel that step J centreless grinding machining uses uses than step G is thin, and the quantity of material of removal is few, and the efficiency of removal is low, can obtain machining accuracy higher.
Step K grinding extrudes: on forcing press, the core of circle toward grinding in the internal diameter of sliding bearing, extruding passing through, the rotating speed of described core is 2000r/min, the extruding feed speed of described core is 200mm/min, the matrix of described core is wolfram steel material, surface has diamond coatings, and hardness is HRC89; Described core carries out grinding with the feed speed of the rotating speed of 2000r/min, 200mm/min to the inwall of sliding bearing, makes the inwall of sliding bearing obtain good fineness.The external diameter 0.02mm-0.03mm larger than the internal diameter of sliding bearing final products of described core, pressure is utilized to be pressed through from the inwall of sliding bearing by described core, extrusion process has made circumferential drawing effect to described sliding axle, thus making the surface of sliding bearing have the effect of flow harden, surface is finer and close, combination property improves further.Because described core is that wolfram steel material makes, adopt the technique preparation of peripheral milling, its surface is with diamond coatings, and the precision of coating is high and wear-resisting.The sliding bearing crushed by described core grinding, its circularity, fineness, material combination property obtain further raising.
Sliding bearing processing technology of the present invention is that sliding bearing proposes strict grinding technics, and the sliding bearing after milled processed, its surface smoothness is better.Described in employing
ceramic particle as abrasive material, sliding bearing is ground.Due to described
ceramic particle possess very high surface smoothness, hardness and wearability.Compare with traditional steel ball abrasive material, described in
ceramic particle possess very long service life, and ground sliding bearing has better fineness.
By following description also by reference to the accompanying drawings, the present invention will become more clear, and these accompanying drawings are for explaining embodiments of the invention.
Accompanying drawing explanation
Fig. 1 is the structural representation in sliding bearing processing technology of the present invention specific embodiment.
Detailed description of the invention
With reference now to accompanying drawing, describe embodiments of the invention, element numbers similar in accompanying drawing represents similar element.As mentioned above, the invention provides a kind of sliding bearing processing technology, good manufacturability, simple to operate, energy consumption is low.
See Fig. 1, a kind of sliding bearing processing technology, comprises the following steps:
Sliding bearing processing technology, comprises the following steps:
A, blanking 20: the original blank of blanking is tubulose bar 10, along the length shown in dotted line 15, in the length of sawing machine length according to sliding bearing, original blank is cut, obtain the primary blank 11 of sliding bearing, the external diameter 0.1mm-0.2mm larger than the external diameter of sliding bearing final products of described original blank, the internal diameter 0.1mm-0.2mm less of the internal diameter of sliding bearing final products of described original blank;
B, end chamfer 21: two of described sliding bearing end faces 12 are carried out chamfer machining;
C, cross grinding: on surface grinding machine, grinding is carried out to two end faces 12 of sliding bearing;
D, punching 22: on the sidewall of sliding bearing, have oil filler point 12, be fixed on sliding bearing on punch press, adopts punch process mode to produce described oil filler point;
E, oil filler point chamfering 23: utilize chamfering device, described oil filler point processes chamfering 14;
F, modifier treatment: carry out modifier treatment to sliding bearing, to improve its combination property;
G, centreless grinding: on centerless grinder, centreless grinding processing is carried out to the surfaces externally and internally 13 of sliding bearing, obtain the openpore of sliding bearing, make obtained described openpore external diameter 0.05mm-0.10mm less of the external diameter of sliding bearing final products, described openpore internal diameter 0.05mm-0.10mm less of the internal diameter of sliding bearing final products;
H, extruding: on forcing press, extrude the core of circle and pass through in the internal diameter of sliding bearing, the external diameter 0.02mm-0.05mm larger than the internal diameter of sliding bearing final products of described core, and the material of described core is wolfram steel material, and hardness is HRC89;
I, destressing process: the sliding bearing being walked preparation by H is put into annealing furnace and does stress relief annealing process;
J, centreless grinding: on centerless grinder, centreless grinding processing is carried out to the surfaces externally and internally of sliding bearing, obtain the openpore of sliding bearing, make obtained described openpore external diameter 0.02mm-0.03mm less of the external diameter of sliding bearing final products, described openpore internal diameter 0.02mm-0.03mm less of the internal diameter of sliding bearing final products;
K, grinding extruding: on forcing press, the core of circle toward grinding in the internal diameter of sliding bearing, extruding passing through, the rotating speed of described core is 2000r/min, and the extruding feed speed of described core is 200mm/min; The external diameter 0.02mm-0.03mm larger than the internal diameter of sliding bearing final products of described core, the matrix of described core is wolfram steel material, surface has diamond coatings, and hardness is HRC89;
L, surface grinding: grind in spiral vibrating finishing machine, comprise the following steps:
Before the grinding of a, sliding bearing, sliding bearing must be adopted degreasing oil carry out de-oiling, decontamination process;
B, general
ceramic particle put in the container in spiral vibrating finishing machine, use afterwards in water eluant container
ceramic particle, add water and do not have
ceramic particle, open grinder 3 minutes, discharge water, then repeat once, will
the antirust agent of ceramic grain surface clean, after rinsing well, close the delivery port of grinder;
C, add in previous step in container flushed
ceramic particle, water, brightener, open grinder, make grinder start vibration, vibrate after 3 minutes, make grinder stop vibrate;
D, in said vesse, put into clean sliding bearing, make grinder vibrate afterwards, then control to add water with autotimer, wherein add a water every seven, eight minutes; Wherein measure every seven, eight minutes external diameters to sliding bearing and internal diameter, when the size of external diameter and internal diameter reaches requirement, grinder stops vibration;
After e, vibro-grinding terminate, sliding bearing is taken out, gets rid of part of anhydrating, put into oil pan and soak;
F, opened by water outlet of container, discharge water, add water flushing afterwards again, and close delivery port, add water flushing
ceramic particle, open grinder and vibrate 10 minutes, discharge water, then repeat flushing more than 3 times, until the brightener in container is cleaned, discharge water, close grinder, close the delivery port of grinder;
G, last, sliding bearing is clean terminate after, will
ceramic particle in add sodium nitrite solution, maintenance
ceramic particle to recycle.
Finally, it should be pointed out that above embodiment is only the more representational example of the present invention.Obviously, the invention is not restricted to above-described embodiment, many distortion can also be had.Every above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all should think and belong to protection scope of the present invention.
Claims (1)
1. a sliding bearing processing technology, is characterized in that composed as follows: comprise the following steps:
A, blanking: the original blank of blanking is tubulose bar, in the length of sawing machine length according to sliding bearing, original blank is cut, obtain the primary blank of sliding bearing, the external diameter 0.1mm-0.2mm larger than the external diameter of sliding bearing final products of described original blank, the internal diameter 0.1mm-0.2mm less of the internal diameter of sliding bearing final products of described original blank;
B, end chamfer: two of described sliding bearing end faces are carried out chamfer machining;
C, cross grinding: on surface grinding machine, grinding is carried out to two end faces of sliding bearing;
D, punching: on the sidewall of sliding bearing, have oil filler point, be fixed on sliding bearing on punch press, adopts punch process mode to produce described oil filler point;
E, oil filler point chamfering: utilize chamfering device, described oil filler point processes chamfering;
F, modifier treatment: carry out modifier treatment to sliding bearing, to improve its combination property;
G, centreless grinding: on centerless grinder, centreless grinding processing is carried out to the surfaces externally and internally of sliding bearing, obtain the openpore of sliding bearing, make obtained described openpore external diameter 0.05mm-0.10mm less of the external diameter of sliding bearing final products, described openpore internal diameter 0.05mm-0.10mm less of the internal diameter of sliding bearing final products;
H, extruding: on forcing press, extrude the core of circle and pass through in the internal diameter of sliding bearing, the external diameter 0.02mm-0.05mm larger than the internal diameter of sliding bearing final products of described core, and the material of described core is wolfram steel material, and hardness is HRC89;
I, destressing process: the sliding bearing being walked preparation by H is put into annealing furnace and does stress relief annealing process;
J, centreless grinding: on centerless grinder, centreless grinding processing is carried out to the surfaces externally and internally of sliding bearing, obtain the openpore of sliding bearing, make obtained described openpore external diameter 0.02mm-0.03mm less of the external diameter of sliding bearing final products, described openpore internal diameter 0.02mm-0.03mm less of the internal diameter of sliding bearing final products;
K, grinding extruding: on forcing press, the core of circle toward grinding in the internal diameter of sliding bearing, extruding passing through, the rotating speed of described core is 2000r/min, and the extruding feed speed of described core is 200mm/min; The external diameter 0.02mm-0.03mm larger than the internal diameter of sliding bearing final products of described core, the matrix of described core is wolfram steel material, surface has diamond coatings, and hardness is HRC89;
L, surface grinding: grind in spiral vibrating finishing machine, comprise the following steps:
Before the grinding of a, sliding bearing, sliding bearing must be adopted degreasing oil carry out de-oiling, decontamination process;
B, put the ceramic particle of 2 in spiral vibrating finishing machine container, use the ceramic particle of 2 in water eluant container afterwards, add water do not have 2 ceramic particle, open grinder 3 minutes, discharge water, then repeat once, the antirust agent of the ceramic grain surface of 2 is cleaned, after rinsing well, close the delivery port of grinder;
C, add in container in previous step flushed 2 ceramic particle, water, brightener, opens grinder, makes grinder start vibration, vibrate after 3 minutes, makes grinder stop vibrating;
D, in said vesse, put into clean sliding bearing, make grinder vibrate afterwards, then control to add water with autotimer, wherein add a water every seven, eight minutes; Wherein measure every seven, eight minutes external diameters to sliding bearing and internal diameter, when the size of external diameter and internal diameter reaches requirement, grinder stops vibration;
After e, vibro-grinding terminate, sliding bearing is taken out, gets rid of part of anhydrating, put into oil pan and soak;
F, opened by water outlet of container, discharge water, add water flushing afterwards again, closes delivery port, add water the ceramic particle of flushing 2, opens grinder and vibrate 10 minutes, discharge water, then repeat flushing more than 3 times, until the brightener in container is cleaned, discharge water, close grinder, close the delivery port of grinder;
G, last, sliding bearing is clean terminate after, add sodium nitrite solution by the ceramic particle of 2, the ceramic particle of maintenance 2 is to recycle.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610068548.9A CN105499938A (en) | 2016-02-01 | 2016-02-01 | Sliding bearing machining process |
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|---|---|---|---|
| CN201610068548.9A CN105499938A (en) | 2016-02-01 | 2016-02-01 | Sliding bearing machining process |
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| CN105499938A true CN105499938A (en) | 2016-04-20 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105904162A (en) * | 2016-05-31 | 2016-08-31 | 安徽潜山轴承制造有限公司 | Machining method of hub bearing |
| CN105921950A (en) * | 2016-05-31 | 2016-09-07 | 安徽潜山轴承制造有限公司 | Production technology for rolling bearing |
| CN105965208A (en) * | 2016-05-31 | 2016-09-28 | 安徽潜山轴承制造有限公司 | Roller bearing production technology and roller bearing anti-fatigue method |
| CN107378401A (en) * | 2017-07-31 | 2017-11-24 | 绍兴东能五金有限公司 | The preparation method and producing device of base are made using waste and old gas cylinder |
| CN108161340A (en) * | 2016-12-08 | 2018-06-15 | 新昌县嘉德科技发展有限公司 | A kind of processing technology of deep ditch ball bearing ring |
| CN111633386A (en) * | 2020-06-08 | 2020-09-08 | 安徽孺子牛轴承有限公司 | Machining process for prolonging service life of bearing |
| CN114473392A (en) * | 2022-03-11 | 2022-05-13 | 重庆江增船舶重工有限公司 | Machining method of sliding bearing |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105904162A (en) * | 2016-05-31 | 2016-08-31 | 安徽潜山轴承制造有限公司 | Machining method of hub bearing |
| CN105921950A (en) * | 2016-05-31 | 2016-09-07 | 安徽潜山轴承制造有限公司 | Production technology for rolling bearing |
| CN105965208A (en) * | 2016-05-31 | 2016-09-28 | 安徽潜山轴承制造有限公司 | Roller bearing production technology and roller bearing anti-fatigue method |
| CN108161340A (en) * | 2016-12-08 | 2018-06-15 | 新昌县嘉德科技发展有限公司 | A kind of processing technology of deep ditch ball bearing ring |
| CN107378401A (en) * | 2017-07-31 | 2017-11-24 | 绍兴东能五金有限公司 | The preparation method and producing device of base are made using waste and old gas cylinder |
| CN111633386A (en) * | 2020-06-08 | 2020-09-08 | 安徽孺子牛轴承有限公司 | Machining process for prolonging service life of bearing |
| CN114473392A (en) * | 2022-03-11 | 2022-05-13 | 重庆江增船舶重工有限公司 | Machining method of sliding bearing |
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Application publication date: 20160420 |