CN103042363B - A kind of manufacture method of capacity eccentric bearing - Google Patents
A kind of manufacture method of capacity eccentric bearing Download PDFInfo
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- CN103042363B CN103042363B CN201210556876.5A CN201210556876A CN103042363B CN 103042363 B CN103042363 B CN 103042363B CN 201210556876 A CN201210556876 A CN 201210556876A CN 103042363 B CN103042363 B CN 103042363B
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- eccentric bushing
- eccentric
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 238000012545 processing Methods 0.000 claims abstract description 22
- 238000003754 machining Methods 0.000 claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 claims abstract description 8
- 238000005242 forging Methods 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 239000011651 chromium Substances 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000005496 tempering Methods 0.000 claims description 3
- 238000001291 vacuum drying Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000306 component Substances 0.000 description 2
- 239000008358 core component Substances 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
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Abstract
The present invention proposes a kind of manufacture method of capacity eccentric bearing, the problem such as solve the eccentric bushing complex manufacturing of existing capacity eccentric bearing, difficulty of processing is large, product qualified rate is low.A manufacture method for capacity eccentric bearing, comprises the processing of inside and outside lasso; The manufacture of eccentric bushing; The detection of eccentric bushing and the assembling of capacity eccentric bearing, the manufacture of described eccentric bushing comprises the following steps: a, forging stock; B, blank vehicle are processed; C, heat treatment; D, half Precision Machining; E, hot and cold actual effect process; F, Precision Machining.
Description
Technical field
The present invention relates to a kind of manufacture method of capacity eccentric bearing.
Background technology
Offset press combination combined pressure bearing, it is a kind of taper roller capacity eccentric bearing of off-gauge inside and outside biserial, be made up of inside and outside lasso, roller and eccentric bushing etc., eccentric bushing, it is the core component in a whole set of bearing, its dimensional accuracy, accuracy of form and position etc. are all required extremely strict, the whether up-to-standard crucial precision index determining bearing of its offset.The eccentric bushing product qualified rate that the manufacture method of existing capacity eccentric bearing manufactures is low, and complex process is higher to equipment requirement, causes large-scale production cost high.
Summary of the invention
The present invention proposes a kind of manufacture method of capacity eccentric bearing, the problem such as solve the eccentric bushing complex manufacturing of existing capacity eccentric bearing, difficulty of processing is large, product qualified rate is low.
Technical scheme of the present invention is achieved in that
A manufacture method for capacity eccentric bearing, comprises the processing of inside and outside lasso; The manufacture of eccentric bushing; The detection of eccentric bushing and the assembling of capacity eccentric bearing, the manufacture of described eccentric bushing comprises the following steps:
A, forging stock: select high-carbon-chromium bearing steel (GCr15) to be raw material, obtain eccentric bushing blank through forging processing;
B, blank vehicle are processed: first, carry out preparatory processing to two end faces of the eccentric bushing blank obtained through above-mentioned steps, in three overside limits and two outer cone raceways reserved mill amount respectively; Secondly, to drill and ream locating hole with drill jig; Finally, with eccentric bushing fixture vehicle centering taper hole;
C, heat treatment: to the eccentric bushing blank vacuum drying oven heating of processing through above-mentioned steps, quenching and tempering, make eccentric bushing blank Rockwell hardness reach 59-61;
D, half Precision Machining: to the further plain grinding processing of two end faces of blank, by the outer rib outer diameter face of cylindrical grinder mill; The centering taper hole processed in eccentric frock mill above-mentioned steps is filled at Internal abrasive machine;
E, hot and cold actual effect process: first, will through more than half precision machined eccentric bushing cold treatment 12 hours and constant temperature places 6 hours; Then, above-mentioned eccentric bushing is heated to 130 DEG C-150 DEG C and constant temperature and places 6 hours; Finally, above-mentioned normal temperature is placed 6 hours;
F, Precision Machining: by nearly for the eccentric bushing after a hot and cold actual effect process step Precision Machining, first, refine the both ends of the surface of above-mentioned eccentric bushing, control parallel error≤0.002mm; Secondly, the large shelves limit outer diameter face of fine grinding eccentric bushing, controls ovality≤0.002mm; Then, two little grades of limit outer diameter face of fine grinding eccentric bushing, control ovality≤0.003mm; Best, clap above-mentioned centering taper hole, ovality≤0.003mm processed with eccentric frock fine grinding.
It is the internal thread hole of 5mm that described locating hole comprises four diameters.
The detection of described eccentric bushing comprises the following steps:
First, test out the three-dimensional coordinate of master body, according to master body adjustment, check and correction tester; Then, eccentric bushing finished product to be measured is put into tester, by the Data Comparison with standard component, draw eccentric bushing sized data.
From the above-mentioned description of this invention, compared to the prior art, tool of the present invention has the following advantages:
The simple and practical method of highly difficult, high-precision technical problem solves by this method, save a large amount of funds, equipment, personnel's input, realize the simplification of technique, by this technological process and the strict control to technique, realize the production method of capacity eccentric bearing batch, low cost, high product qualified rate, ensure that the high accuracy of batch machining eccentric bushing, greatly reduce the cumulative errors in finished product assembling, through detecting, reach zero error by the offset precision of the part bearing finished products of this explained hereafter.
Detailed description of the invention
Be clearly and completely described to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
A manufacture method for capacity eccentric bearing, comprise the assembling of the processing of inside and outside lasso, the manufacture of eccentric bushing, the detection of eccentric bushing and capacity eccentric bearing, the manufacture of described eccentric bushing comprises the following steps:
A, forging stock: select high-carbon-chromium bearing steel (GCr15) to be raw material, obtain eccentric bushing blank through forging processing;
B, blank vehicle are processed: first, carry out preparatory processing to two end faces of the eccentric bushing blank obtained through above-mentioned steps, in three overside limits and two outer cone raceways reserved mill amount respectively; Secondly, to drill and ream locating hole with drill jig; Finally, with eccentric bushing fixture vehicle centering taper hole;
C, heat treatment: to the eccentric bushing blank vacuum drying oven heating of processing through above-mentioned steps, quenching and tempering, make eccentric bushing blank Rockwell hardness reach 59-61;
D, half Precision Machining: to the further plain grinding processing of two end faces of blank, by the outer rib outer diameter face of cylindrical grinder mill; The centering taper hole processed in eccentric frock mill above-mentioned steps is filled at Internal abrasive machine;
E, hot and cold actual effect process: first, will through more than half precision machined eccentric bushing cold treatment 12 hours and constant temperature places 6 hours; Then, above-mentioned eccentric bushing is heated to 130 DEG C-150 DEG C and constant temperature and places 6 hours; Finally, above-mentioned normal temperature is placed 6 hours;
F, Precision Machining: by nearly for the eccentric bushing after a hot and cold actual effect process step Precision Machining, first, refine the both ends of the surface of above-mentioned eccentric bushing, control parallel error≤0.002mm; Secondly, the large shelves limit outer diameter face of fine grinding eccentric bushing, controls ovality≤0.002mm; Then, two little grades of limit outer diameter face of fine grinding eccentric bushing, control ovality≤0.003mm; Best, clap above-mentioned centering taper hole, ovality≤0.003mm processed with eccentric frock fine grinding;
G, eccentric bushing finished product shaping for above-mentioned processes is removed the internal thread dirt of eccentric locating hole through slipping silk, with water heated wash eccentric bushing finished product, then process is dried, antirust treatment, eventually passes grouping system, complete whole technique, obtain qualified eccentric bushing finished product.
It is the internal thread hole of 5mm that described locating hole comprises four diameters.
The detection of described eccentric bushing comprises the following steps:
First, test out the three-dimensional coordinate of master body, according to master body adjustment, check and correction tester; Then, eccentric bushing finished product to be measured is put into tester, by the Data Comparison with standard component, draw eccentric bushing data.
The eccentric bushing processing basic technical indicator of capacity eccentric bearing:
1, both ends of the surface processing is the first benchmark, plane parallel error≤0.003mm;
2, external diameter processing is positioning process benchmark, ovality≤0.003mm, and vertical difference≤0.003mm;
3, outer rib, the outer cone raceway accuracy of form and position all≤0.003mm;
4, the raceway fine grinding accuracy of form and position≤0.003mm of inner cone;
5, offset≤0.005mm.
Compared to the prior art, tool of the present invention has the following advantages:
One, the core component eccentric bushing of production method emphasis to capacity eccentric bearing of this capacity eccentric bearing carries out high accuracy processing, by this technological process and the strict control to technique, realize the production method of capacity eccentric bearing batch, low cost, high product qualified rate, ensure that the high accuracy of batch machining eccentric bushing, greatly reduce the cumulative errors in finished product assembling, through detecting, reach zero error by the offset precision of the part bearing finished products of this explained hereafter.
Two, after half Precision Machining, through hot and cold actual effect process, by multiple Stress Release out, the problem on deformation after eccentric bushing reprocessing can be solved, stablizes the size of eccentric bushing, improve precision.
Three, optimize the detection method of eccentric bushing, by the method for contrast standard exemplar, rear finished product accuracy data are processed in measuring by all means, low to detecting instrument equipment requirement, and are simple and easy to use, substantially increase detection efficiency.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. a manufacture method for capacity eccentric bearing, comprises the processing of inside and outside lasso; The manufacture of eccentric bushing; The detection of eccentric bushing and the assembling of capacity eccentric bearing, is characterized in that, the manufacture of described eccentric bushing comprises the following steps:
A, forging stock: select high-carbon-chromium bearing steel (GCr15) to be raw material, obtain eccentric bushing blank through forging processing;
B, blank vehicle are processed: first, carry out preparatory processing to two end faces of the eccentric bushing blank obtained through above-mentioned steps, in three overside limits and two outer cone raceways reserved mill amount respectively; Secondly, to drill and ream locating hole with drill jig; Finally, with eccentric bushing fixture vehicle centering taper hole;
C, heat treatment: to the eccentric bushing blank vacuum drying oven heating of processing through above-mentioned steps, quenching and tempering, make eccentric bushing blank Rockwell hardness reach 59-61;
D, half Precision Machining: to the further plain grinding processing of two end faces of blank, by the outer rib outer diameter face of cylindrical grinder mill; The centering taper hole processed in eccentric frock mill above-mentioned steps is filled at Internal abrasive machine;
E, hot and cold actual effect process: first, will through more than half precision machined eccentric bushing cold treatment 12 hours and constant temperature places 6 hours; Then, above-mentioned eccentric bushing is heated to 130 DEG C-150 DEG C and constant temperature and places 6 hours; Finally, above-mentioned eccentric bushing normal temperature is placed 6 hours;
F, Precision Machining: by nearly for the eccentric bushing after a hot and cold actual effect process step Precision Machining, first, refine the both ends of the surface of above-mentioned eccentric bushing, control parallel error≤0.002mm; Secondly, the large shelves limit outer diameter face of fine grinding eccentric bushing, controls ovality≤0.002mm; Then, two little grades of limit outer diameter face of fine grinding eccentric bushing, control ovality≤0.003mm; Above-mentioned centering taper hole is refined, ovality≤0.003mm processed by eccentric frock;
G, eccentric bushing finished product shaping for above-mentioned processes is removed the internal thread dirt of eccentric locating hole through slipping silk, with water heated wash eccentric bushing finished product, then process is dried, antirust treatment, eventually passes grouping system, complete whole technique, obtain qualified eccentric bushing finished product.
2. the manufacture method of a kind of capacity eccentric bearing as claimed in claim 1, is characterized in that: it is the internal thread hole of 5mm that described locating hole comprises four diameters.
3. the manufacture method of a kind of capacity eccentric bearing as claimed in claim 1 or 2, is characterized in that: the detection of described eccentric bushing comprises the following steps: first, tests out the three-dimensional coordinate of master body, according to master body adjustment, check and correction tester; Then, eccentric bushing finished product to be measured is put into tester, by the Data Comparison with standard component, draw eccentric bushing sized data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210556876.5A CN103042363B (en) | 2012-12-18 | 2012-12-18 | A kind of manufacture method of capacity eccentric bearing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210556876.5A CN103042363B (en) | 2012-12-18 | 2012-12-18 | A kind of manufacture method of capacity eccentric bearing |
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| CN103042363A CN103042363A (en) | 2013-04-17 |
| CN103042363B true CN103042363B (en) | 2015-09-30 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508406A (en) * | 2016-01-05 | 2016-04-20 | 三联传动机械有限公司 | Input suite of cycloidal reducer and machining method of input suite |
| CN106002115B (en) * | 2016-05-26 | 2018-01-16 | 镇江市经纬工程机械有限公司 | Eccentric shaft production line quality detecting method |
| CN110936107A (en) * | 2019-11-06 | 2020-03-31 | 江苏赫夫特齿轮制造有限公司 | Machining process for eccentric sleeve of high-speed module finishing mill |
| CN111185724A (en) * | 2020-04-10 | 2020-05-22 | 人本集团有限公司 | Eccentric inner ring, eccentric bearing machining method, eccentric bearing and eccentric clamp |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE3324811A1 (en) * | 1983-07-09 | 1985-01-17 | INA Wälzlager Schaeffler KG, 8522 Herzogenaurach | Rolling bearing for the journals of rubber-covered cylinders in printing machines |
| CN88101307A (en) * | 1988-03-13 | 1988-09-14 | 纪绍祥 | Casting and forging technique of ring blank of roller bearing |
| JPH1137151A (en) * | 1997-07-22 | 1999-02-09 | Ntn Corp | Multistage bearing unit |
| CN1544177A (en) * | 2003-11-28 | 2004-11-10 | 清华大学 | Control method of intelligent robot for water-fire processing of large complex curved steel plate |
| CN102211278A (en) * | 2010-04-01 | 2011-10-12 | 洛阳巨创轴承科技有限公司 | Machining process of double-row outer-ring-free cylindrical roller bearing |
| CN102441768A (en) * | 2010-11-15 | 2012-05-09 | 江苏万达特种轴承有限公司 | Processing technology of bearing steel double-hardness roller ring |
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Effective date of registration: 20160725 Address after: Liu Zhen Town, Dong'e, Shandong, Liaocheng Patentee after: Shandong Xinxing Precision Bearing Technology Co., Ltd. Address before: 261000 No. 3666 Pine Road, Weicheng, Shandong, Weifang Patentee before: Weifang Xinlu Bearing Co., Ltd. |
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