CN110539210A - Method for machining and polishing outer ring of high-strength needle bearing - Google Patents
Method for machining and polishing outer ring of high-strength needle bearing Download PDFInfo
- Publication number
- CN110539210A CN110539210A CN201910813460.9A CN201910813460A CN110539210A CN 110539210 A CN110539210 A CN 110539210A CN 201910813460 A CN201910813460 A CN 201910813460A CN 110539210 A CN110539210 A CN 110539210A
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- China
- Prior art keywords
- outer ring
- needle bearing
- polishing
- needle
- bearing outer
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Classifications
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- 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
-
- 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
- B24B1/04—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes subjecting the grinding or polishing tools, the abrading or polishing medium or work to vibration, e.g. grinding with ultrasonic frequency
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09G—POLISHING COMPOSITIONS; SKI WAXES
- C09G1/00—Polishing compositions
- C09G1/02—Polishing compositions containing abrasives or grinding agents
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
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- 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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/64—Special methods of manufacture
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Rolling Contact Bearings (AREA)
Abstract
the invention discloses a method for processing and polishing an outer ring of a high-strength needle bearing, which comprises the following steps: taking out the outer ring of the needle bearing, heating the surrounding part of the semi-shaft sleeve of the outer ring of the needle bearing by an electric heating plate at the temperature of 50-80 ℃, and after the semi-shaft sleeve is uniformly heated, the outer ring of the needle bearing can fall off after the semi-shaft sleeve is heated and expanded, thus obtaining the outer ring of the needle bearing to be polished; performing surface cleaning treatment on the obtained needle roller bearing outer ring to be polished, putting the outer ring to be polished into acetone for soaking for 20-30min, taking out the outer ring, putting the outer ring into clear water for ultrasonic cleaning for 10-15min, and then performing air drying to obtain the cleaned needle roller bearing outer ring; according to the method for processing and polishing the outer ring of the high-strength needle bearing, fine burrs generated during processing of the outer ring of the needle bearing can be completely removed through a multi-step process, so that the quality of the bearing is ensured, the polishing efficiency is improved, and the product glossiness is higher.
Description
Technical Field
The invention belongs to the technical field of bearing machining, and particularly relates to a method for machining and polishing an outer ring of a high-strength needle bearing.
background
The bearing outer ring is installed on the outer surface of a rolling needle, in operation, the purpose of reducing the friction resistance between two parts moving relatively is achieved by means of rolling of the rolling needle, polishing of the bearing outer ring in processing production is an indispensable processing step, the existing bearing outer ring is directly poured into a polishing machine to be polished when polishing, fine burrs are formed after polishing of the bearing outer ring, polishing effect is unsatisfactory, meanwhile, the glossiness of the bearing outer ring polished in the polishing machine is not high, polishing efficiency is low, and subsequent selling and other problems of the bearing are affected due to poor quality.
disclosure of Invention
the invention mainly aims to provide a method for processing and polishing an outer ring of a high-strength needle bearing, which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
a processing and polishing method for an outer ring of a high-strength needle bearing comprises the following steps:
S1: taking out the outer ring of the needle bearing, heating the surrounding part of the semi-shaft sleeve of the outer ring of the needle bearing by an electric heating plate at the temperature of 50-80 ℃, and after the semi-shaft sleeve is uniformly heated, the outer ring of the needle bearing can fall off after the semi-shaft sleeve is heated and expanded, thus obtaining the outer ring of the needle bearing to be polished;
S2: performing surface cleaning treatment on the obtained needle roller bearing outer ring to be polished, putting the outer ring to be polished into acetone for soaking for 20-30min, taking out the outer ring, putting the outer ring into clear water for ultrasonic cleaning for 10-15min, and then performing air drying to obtain the cleaned needle roller bearing outer ring;
S3: carrying out acid pickling treatment on the cleaned needle bearing outer ring, putting the needle bearing outer ring into nitric acid for acid pickling for 30-50s at the temperature of 10-30 ℃, taking out the needle bearing outer ring, and then putting the needle bearing outer ring into a sodium carbonate solution for neutralization treatment for 30-60s to obtain the needle bearing outer ring subjected to acid pickling neutralization;
S4: carrying out rough polishing treatment on the needle bearing outer ring subjected to acid pickling neutralization, putting the needle bearing outer ring into polishing solution for soaking for 2-5min, then carrying out ultrasonic treatment for 10s, taking out, and washing for 1-3min by using deionized water to obtain a rough polished needle bearing outer ring;
s5: and performing fine polishing treatment on the obtained rough-polished needle bearing outer ring, putting the needle bearing outer ring into a polishing machine, adding polishing pills and polishing powder for 10-20min, taking out the needle bearing outer ring, washing the needle bearing outer ring with clear water, putting the needle bearing outer ring into a resistance furnace, heating to 200-phase and 300 ℃, preserving heat for 10-20min, and cooling to room temperature along with the furnace to finish the processing and polishing of the needle bearing outer ring to obtain the processed and polished high-strength needle bearing outer ring.
preferably, the acetone soaking temperature is 50-70 ℃, the ultrasonic power is 1000w, and the frequency is 25 kHz.
Preferably, the polishing solution is prepared from the following components, by weight, 5 parts of nitric acid, 3 parts of phosphoric acid, 2 parts of hydrogen peroxide, 4 parts of aluminum stearate, 2 parts of ammonium pyrophosphate, 0.5 part of ethylene glycol and 100 parts of water.
Preferably, the temperature of the polishing solution is not more than 60 ℃.
Preferably, the concentration of the nitric acid is 1-2mol/L, and the concentration of the sodium carbonate is 5 mol/L.
preferably, the polishing pellet is alumina.
Compared with the prior art, the invention has the following beneficial effects: this bearing's outer lane processing polishing method, through dual polishing step, make the bearing outer lane can get rid of the burr on outer lane surface, chamfer when rough machining, thereby guarantee the quality of bearing, simultaneously through the fine polishing once more, put into the burnishing machine with the outer lane and carry out the essence and throw, added the polishing ball and still added polishing powder, make the polishing of product more meticulous, obtain fine promotion to the polishing quality of outer lane, and the luminance is showing and is improving, roughness reduces by a wide margin, and the efficiency of polishing has still been improved, make the polishing of bearing outer lane more thorough, satisfy current demand, the operation is simple, the running cost is low, safety and environmental protection, good use prospect has.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Example 1
When in processing and polishing, firstly, the outer ring of the needle bearing is taken out, the surrounding part of the semi-shaft sleeve of the outer ring of the needle bearing is heated by an electric hot plate at the temperature of 60 ℃, and the outer ring of the needle bearing can fall off after being heated and expanded after being uniformly heated, so that the outer ring of the needle bearing to be polished is obtained; then, carrying out surface cleaning treatment on the obtained needle roller bearing outer ring to be polished, putting the outer ring to be polished into acetone for soaking, wherein the acetone soaking temperature is 50 ═ c, the duration is 20 ═ min, taking out the outer ring, placing the outer ring into clean water for ultrasonic cleaning for 10 ═ min, the ultrasonic power is 1000w, the frequency is 25kHz, and then carrying out air drying to obtain the cleaned needle roller bearing outer ring; secondly, carrying out acid pickling treatment on the cleaned needle bearing outer ring, putting the needle bearing outer ring into nitric acid for acid pickling for 30 ═ s, at the temperature of 20 ℃, and with the concentration of 1 ═ mol/L, taking out the needle bearing outer ring, putting the needle bearing outer ring into a sodium carbonate solution for neutralization treatment, wherein the concentration of sodium carbonate is 5mol/L, and the time duration is 40s, so as to obtain the needle bearing outer ring subjected to acid pickling neutralization; finally, carrying out rough polishing treatment on the needle roller bearing outer ring subjected to acid pickling neutralization, putting the needle roller bearing outer ring into polishing solution, soaking for 3min, wherein the temperature of the polishing solution is not more than 60 ℃, the polishing solution is prepared from the following components in parts by weight, namely nitric acid 5, phosphoric acid 3, hydrogen peroxide 2, aluminum stearate 4, ammonium pyrophosphate 2, ethylene glycol 0.5 and water 100, then carrying out ultrasonic treatment for 10s, taking out, and washing for 2min by using deionized water to obtain a rough-polished needle roller bearing outer ring; carrying out fine polishing treatment on the obtained rough-polished needle bearing outer ring, putting the needle bearing outer ring into a polishing machine, adding a polishing pill and polishing powder, wherein the polishing pill is aluminum oxide and lasts for 15min, taking out the needle bearing outer ring, washing the needle bearing outer ring with clear water, putting the needle bearing outer ring into a resistance furnace, heating to 200 ℃, preserving heat for 15min, and cooling to room temperature along with the furnace to finish the outer ring processing and polishing of the needle bearing;
and taking a proper amount of sample from the prepared needle bearing outer ring, and carrying out outer ring glossiness test by using a micro gloss meter A-4430, wherein the surface appearance of the needle bearing outer ring is uniform, has no heterochrosis, has no chromatic aberration, has no snowflake and has glossiness of 40gu through detection.
Example 2
When in processing and polishing, firstly, the outer ring of the needle bearing is taken out, the surrounding part of the semi-shaft sleeve of the outer ring of the needle bearing is heated by an electric hot plate at the temperature of 80 ℃, and the outer ring of the needle bearing can fall off after being heated and expanded after being uniformly heated, so that the outer ring of the needle bearing to be polished is obtained; then, carrying out surface cleaning treatment on the obtained needle roller bearing outer ring to be polished, putting the outer ring to be polished into acetone for soaking, wherein the acetone soaking temperature is 70 ℃, the time is 30min, taking out the outer ring, placing the outer ring into clear water for carrying out ultrasonic cleaning for 15min, the ultrasonic power is 1000w, the frequency is 25kHz, and then carrying out air drying to obtain the cleaned needle roller bearing outer ring; secondly, carrying out acid pickling treatment on the cleaned needle bearing outer ring, putting the needle bearing outer ring into nitric acid for acid pickling for 50s, wherein the temperature is 30 ℃, the concentration of the nitric acid is 2mol/L, taking out the needle bearing outer ring, putting the needle bearing outer ring into a sodium carbonate solution for neutralization treatment, and the concentration of the sodium carbonate is 5mol/L, and the duration is 60s to obtain the needle bearing outer ring subjected to acid pickling neutralization; finally, carrying out rough polishing treatment on the needle roller bearing outer ring subjected to acid pickling neutralization, putting the needle roller bearing outer ring into polishing solution, soaking for 5min, wherein the temperature of the polishing solution is not more than 60 ℃, the polishing solution is prepared from the following components in parts by weight, namely nitric acid 5, phosphoric acid 3, hydrogen peroxide 2, aluminum stearate 4, ammonium pyrophosphate 2, ethylene glycol 0.5 and water 100, then carrying out ultrasonic treatment for 10s, taking out, and washing for 3min by using deionized water to obtain a rough-polished needle roller bearing outer ring; carrying out fine polishing treatment on the obtained rough-polished needle bearing outer ring, putting the needle bearing outer ring into a polishing machine, adding polishing pills and polishing powder, wherein the polishing pills are aluminum oxide and have the duration of 20min, taking out the needle bearing outer ring, washing the needle bearing outer ring with clear water, putting the needle bearing outer ring into a resistance furnace, heating the needle bearing outer ring to 300 ℃, preserving heat for 20min, and cooling the needle bearing outer ring to room temperature along with the furnace to finish the processing and polishing of the needle bearing outer ring;
And taking a proper amount of sample from the prepared needle bearing outer ring, and carrying out outer ring glossiness test by using a micro gloss meter A-4430, wherein the surface appearance of the needle bearing outer ring is uniform, has no heterochrosis, has no chromatic aberration, has no snowflake and has the glossiness of 45 gu.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. a processing and polishing method for an outer ring of a high-strength needle bearing is characterized by comprising the following steps:
S1: taking out the outer ring of the needle bearing, heating the surrounding part of the semi-shaft sleeve of the outer ring of the needle bearing by an electric heating plate at the temperature of 50-80 ℃, and after the semi-shaft sleeve is uniformly heated, the outer ring of the needle bearing can fall off after the semi-shaft sleeve is heated and expanded, thus obtaining the outer ring of the needle bearing to be polished;
s2: performing surface cleaning treatment on the obtained needle roller bearing outer ring to be polished, putting the outer ring to be polished into acetone for soaking for 20-30min, taking out the outer ring, putting the outer ring into clear water for ultrasonic cleaning for 10-15min, and then performing air drying to obtain the cleaned needle roller bearing outer ring;
S3: carrying out acid pickling treatment on the cleaned needle bearing outer ring, putting the needle bearing outer ring into nitric acid for acid pickling for 30-50s at the temperature of 10-30 ℃, taking out the needle bearing outer ring, and then putting the needle bearing outer ring into a sodium carbonate solution for neutralization treatment for 30-60s to obtain the needle bearing outer ring subjected to acid pickling neutralization;
s4: carrying out rough polishing treatment on the needle bearing outer ring subjected to acid pickling neutralization, putting the needle bearing outer ring into polishing solution for soaking for 2-5min, then carrying out ultrasonic treatment for 10s, taking out, and washing for 1-3min by using deionized water to obtain a rough polished needle bearing outer ring;
S5: and performing fine polishing treatment on the obtained rough-polished needle bearing outer ring, putting the needle bearing outer ring into a polishing machine, adding polishing pills and polishing powder for 10-20min, taking out the needle bearing outer ring, washing the needle bearing outer ring with clear water, putting the needle bearing outer ring into a resistance furnace, heating to 200-phase and 300 ℃, preserving heat for 10-20min, and cooling to room temperature along with the furnace to finish the processing and polishing of the needle bearing outer ring to obtain the processed and polished high-strength needle bearing outer ring.
2. The method for processing and polishing the outer ring of the high-strength needle roller bearing according to claim 1, wherein: the acetone soaking temperature is 50-70 ℃, the ultrasonic power is 1000w, and the frequency is 25 kHz.
3. The method for processing and polishing the outer ring of the high-strength needle roller bearing according to claim 1, wherein: the polishing solution is prepared from the following components, by weight, 5 parts of nitric acid, 3 parts of phosphoric acid, 2 parts of hydrogen peroxide, 4 parts of aluminum stearate, 2 parts of ammonium pyrophosphate, 0.5 part of ethylene glycol and 100 parts of water.
4. The method for processing and polishing the outer ring of the high-strength needle roller bearing according to claim 1, wherein: the temperature of the polishing solution is not more than 60 ℃.
5. The preparation process of the method for machining and polishing the outer ring of the high-strength needle roller bearing according to claim 1, wherein the method comprises the following steps: the concentration of the nitric acid is 1-2mol/L, and the concentration of the sodium carbonate is 5 mol/L.
6. the preparation process of the method for machining and polishing the outer ring of the high-strength needle roller bearing according to claim 1, wherein the method comprises the following steps: the polishing pill is alumina.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910813460.9A CN110539210A (en) | 2019-08-30 | 2019-08-30 | Method for machining and polishing outer ring of high-strength needle bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910813460.9A CN110539210A (en) | 2019-08-30 | 2019-08-30 | Method for machining and polishing outer ring of high-strength needle bearing |
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| Publication Number | Publication Date |
|---|---|
| CN110539210A true CN110539210A (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910813460.9A Pending CN110539210A (en) | 2019-08-30 | 2019-08-30 | Method for machining and polishing outer ring of high-strength needle bearing |
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| Country | Link |
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| CN (1) | CN110539210A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112877702A (en) * | 2021-01-13 | 2021-06-01 | 西安航天发动机有限公司 | Method for removing powder particles of titanium alloy interlayer narrow flow passage component |
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| CN105256368A (en) * | 2015-11-11 | 2016-01-20 | 无锡清杨机械制造有限公司 | Stainless steel polishing method |
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| CN108067945A (en) * | 2017-11-30 | 2018-05-25 | 马鞍山市宝奕金属制品工贸有限公司 | A kind of stainless steel polishing technique |
| CN108907903A (en) * | 2018-07-16 | 2018-11-30 | 苏州艾斯肯机电设备有限公司 | A kind of electromechanical equipment processing of surface polishing |
| CN109576711A (en) * | 2018-11-05 | 2019-04-05 | 重庆市合川区祥林玻璃有限公司 | A kind of 360 degree of smooth surface polishing processes |
-
2019
- 2019-08-30 CN CN201910813460.9A patent/CN110539210A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GB1529200A (en) * | 1975-12-30 | 1978-10-18 | Xerox Corp | Imaging surface smoothing |
| CN105256368A (en) * | 2015-11-11 | 2016-01-20 | 无锡清杨机械制造有限公司 | Stainless steel polishing method |
| CN106216938A (en) * | 2016-08-22 | 2016-12-14 | 怀宁吉利来精密机械科技有限公司 | A kind of water conservancy oscillating bearing rust cleaning and renovation technique |
| CN108067945A (en) * | 2017-11-30 | 2018-05-25 | 马鞍山市宝奕金属制品工贸有限公司 | A kind of stainless steel polishing technique |
| CN108907903A (en) * | 2018-07-16 | 2018-11-30 | 苏州艾斯肯机电设备有限公司 | A kind of electromechanical equipment processing of surface polishing |
| CN109576711A (en) * | 2018-11-05 | 2019-04-05 | 重庆市合川区祥林玻璃有限公司 | A kind of 360 degree of smooth surface polishing processes |
Non-Patent Citations (1)
| Title |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112877702A (en) * | 2021-01-13 | 2021-06-01 | 西安航天发动机有限公司 | Method for removing powder particles of titanium alloy interlayer narrow flow passage component |
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Application publication date: 20191206 |
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