CN103331583B - A kind of Caterpillar track hinge pin processing method - Google Patents
A kind of Caterpillar track hinge pin processing method Download PDFInfo
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- CN103331583B CN103331583B CN201310293706.7A CN201310293706A CN103331583B CN 103331583 B CN103331583 B CN 103331583B CN 201310293706 A CN201310293706 A CN 201310293706A CN 103331583 B CN103331583 B CN 103331583B
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Abstract
The invention discloses a kind of Caterpillar track hinge pin processing method, belong to Caterpillar track hinge pin processing technique field.Procedure of processing is: initial bar is put into flaying machine, bar enters roller press and carries out roll extrusion subsequently, then bar is cut, make machine with milling again and milling is carried out to bar two ends, and chamfering is carried out to bar two ends, then Quenching Treatment is carried out to bar, subsequently temper is carried out to bar, finally bar is carried out grinding, then obtain required Caterpillar track hinge pin.Compared with prior art, this Caterpillar track hinge pin processing method removes modified operation, has saved production cost; Flaying machine is used to substantially increase operating efficiency; Rolling step not only makes bearing pin surface produce plastic deformation, surface metal flows, fill up the pit of knife mark, reduce surface roughness, and add the compression on surface, improve the toughness of workpiece, increase the fatigue behaviour of finished product, have successfully been obtained low cost, high-quality Caterpillar track hinge pin finished product by this kind of method.
Description
Technical field
The present invention relates to a kind of Caterpillar track hinge pin, specifically a kind of Caterpillar track hinge pin processing method, belongs to Caterpillar track hinge pin processing technique field.
Background technology
In the prior art, Caterpillar track hinge pin for crawler body is not standarized component, so the process of Caterpillar track hinge pin parts has diversity, particularity, and the working environment of Caterpillar track hinge pin is quite severe, therefore to its wearability and resistance to impact, there is very high requirement, this just requires that Caterpillar track hinge pin processing method must seek a kind of special, ripe processing method, to ensure the quality requirement of product.
The processing method of tradition Caterpillar track hinge pin is: bar by required diameter be cut into pieces-modified-carry out turning and chamfering-intermediate frequency-grinding with numerically controlled lathe.Above-mentioned processing method is widely adopted because it can ensure the requirement of product quality, but its each operation more complicated, production efficiency is low, and equipment investment cost is large, cannot meet the requirement that modern industry is produced.
Summary of the invention
For above-mentioned prior art Problems existing, the invention provides a kind of Caterpillar track hinge pin processing method, object is while saving production cost, and increases work efficiency, and makes bearing pin surface produce plastic deformation, surface metal flows, fill up the pit of knife mark, reduce surface roughness, increase the compression on bearing pin surface, improve the toughness of workpiece, increase the fatigue behaviour of finished product.
To achieve these goals, the procedure of processing of this Caterpillar track hinge pin processing method is:
(1), by the initial bar of Caterpillar track hinge pin put into flaying machine, remove billet surface defect, and ensure material required diameter;
(2), bar is carried out roll extrusion by roller press;
(3), bar is cut;
(4) machine of, by milling beating carries out milling to the two ends of bar and carries out chamfering, makes bar roughness reach Ra12.5;
(5), by bar put into quenching machine, temperature is risen to 800 ~ 900 DEG C, spray quench is carried out to bar;
(6), by bar put into tempering furnace and carry out temper, temperature is 180 ~ 260 DEG C, temperature retention time 1 ~ 2 hour;
(7), finally bar is carried out grinding, make bar roughness reach Ra0.8 ~ Ra1.6, required Caterpillar track hinge pin can be obtained.
The temperature of carrying out Quenching Treatment to bar in step (5) is 880 DEG C.
The hardening media carrying out Quenching Treatment to bar in step (5) is water base.
The temperature of carrying out temper to bar in step (6) is 200 DEG C, temperature retention time 2 hours.
Bar is carried out grinding in (7) by step, makes bar roughness reach Ra0.8.
Compared with prior art, this Caterpillar track hinge pin processing method removes modified operation, has saved production cost; Flaying machine is used to substantially increase operating efficiency; Rolling step not only makes bearing pin surface produce plastic deformation, surface metal flows, fill up the pit of knife mark, reduce surface roughness, and add the compression on surface, improve the toughness of workpiece, increase the fatigue behaviour of finished product, have successfully been obtained low cost, high-quality Caterpillar track hinge pin finished product by this kind of method.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention will be further described.
The present embodiment, with material 45 boron, the bar of diameter phi 40mm, length 9m is the implementation process that example illustrates present invention process, and procedure of processing is:
(1), by the initial bar of Caterpillar track hinge pin put into flaying machine, car is about 38mm to diameter, removes billet surface defect, and ensures material required diameter;
(2), bar is carried out roll extrusion by roller press;
(3), cut bar, adopt band sawing machine to be the segment of about 215mm by long for 9m bar cut growth;
(4) machine of, by milling beating carries out milling to the two ends of bar and carries out chamfering, makes bar roughness reach Ra12.5;
(5), by bar put into quenching machine, temperature is risen to 800 ~ 900 DEG C, spray quench is carried out to bar;
(6), by bar put into tempering furnace and carry out temper, temperature is 180 ~ 260 DEG C, temperature retention time 1 ~ 2 hour;
(7), finally bar is carried out grinding, make bar roughness reach Ra0.8 ~ Ra1.6, required Caterpillar track hinge pin can be obtained.
As preferably, the temperature of carrying out Quenching Treatment to bar in step (5) is 880 DEG C, and hardening media bar being carried out to Quenching Treatment is water base; The temperature of carrying out temper to bar in step (6) is 200 DEG C, temperature retention time 2 hours; In step (7) a metallic bar is carried out grinding, make bar roughness reach Ra0.8.Learn through practice, the ideal Caterpillar track hinge pin of performance can be obtained under this quenching condition.
Compared with conventional method, remove modified operation, cost-saving; Flaying machine is used to substantially increase operating efficiency; Rolling step not only makes bearing pin surface produce plastic deformation, and surface metal flows, and fills up the pit of knife mark, reduces surface roughness, and adds the compression on surface, improves the toughness of workpiece, increases the fatigue behaviour of finished product.Low cost, high-quality Caterpillar track hinge pin finished product is have successfully been obtained by this kind of method.
Claims (5)
1. a Caterpillar track hinge pin processing method, is characterized in that, procedure of processing is:
(1), by the initial bar of Caterpillar track hinge pin put into flaying machine, remove billet surface defect, and ensure material required diameter;
(2), bar is carried out roll extrusion by roller press;
(3), bar is cut;
(4) machine of, by milling beating carries out milling to the two ends of bar and carries out chamfering, makes bar roughness reach Ra12.5;
(5), by bar put into quenching machine, temperature is risen to 800 ~ 900 DEG C, spray quench is carried out to bar;
(6), by bar put into tempering furnace and carry out temper, temperature is 180 ~ 260 DEG C, temperature retention time 1 ~ 2 hour;
(7), finally bar is carried out grinding, make bar roughness reach Ra0.8 ~ Ra1.6, required Caterpillar track hinge pin can be obtained.
2. a kind of Caterpillar track hinge pin processing method according to claim 1, is characterized in that, the temperature of carrying out Quenching Treatment to bar in step (5) is 880 DEG C.
3. a kind of Caterpillar track hinge pin processing method according to claim 1 and 2, is characterized in that, the hardening media carrying out Quenching Treatment to bar in step (5) is water base.
4. a kind of Caterpillar track hinge pin processing method according to claim 1, is characterized in that, the temperature of carrying out temper to bar in step (6) is 200 DEG C, temperature retention time 2 hours.
5. a kind of Caterpillar track hinge pin processing method according to claim 1, is characterized in that, bar is carried out grinding in (7) by step, makes bar roughness reach Ra0.8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310293706.7A CN103331583B (en) | 2013-07-12 | 2013-07-12 | A kind of Caterpillar track hinge pin processing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310293706.7A CN103331583B (en) | 2013-07-12 | 2013-07-12 | A kind of Caterpillar track hinge pin processing method |
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| CN103331583A CN103331583A (en) | 2013-10-02 |
| CN103331583B true CN103331583B (en) | 2016-01-27 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613129A (en) * | 2014-12-25 | 2015-05-13 | 杭州持正科技有限公司 | Vanadinizing chain pin shaft and manufacturing method thereof |
| CN109128708A (en) * | 2018-09-29 | 2019-01-04 | 徐州徐工履带底盘有限公司 | A kind of thrust wheel wheel shaft processing method |
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| US5408745A (en) * | 1992-07-16 | 1995-04-25 | Mazda Motor Corporation | Method of producting crankshafts |
| CN1467121A (en) * | 2002-06-14 | 2004-01-14 | ��ʽ����С�������� | Track link production method and track link produced by the same |
| CN101448593A (en) * | 2006-05-26 | 2009-06-03 | 奈尔斯-西蒙斯工业设备有限责任公司 | Method of machining the bearing seats of the main and rod bearings of crankshafts |
| CN102416433A (en) * | 2011-09-08 | 2012-04-18 | 仪征市福斯特机械制造有限责任公司 | Technology for machining pin shaft |
| CN102658455A (en) * | 2012-05-04 | 2012-09-12 | 熔盛机械有限公司 | Manufacturing method for preventing long pin shaft of working device of excavator from deforming |
| CN102756245A (en) * | 2012-07-28 | 2012-10-31 | 卢德文 | Environment-friendly high-density wear-resistant chain pin shaft and manufacturing cost thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5003184B2 (en) * | 2007-02-01 | 2012-08-15 | 株式会社ジェイテクト | Power transmission chain pin and manufacturing method thereof |
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2013
- 2013-07-12 CN CN201310293706.7A patent/CN103331583B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5408745A (en) * | 1992-07-16 | 1995-04-25 | Mazda Motor Corporation | Method of producting crankshafts |
| CN1467121A (en) * | 2002-06-14 | 2004-01-14 | ��ʽ����С�������� | Track link production method and track link produced by the same |
| CN101448593A (en) * | 2006-05-26 | 2009-06-03 | 奈尔斯-西蒙斯工业设备有限责任公司 | Method of machining the bearing seats of the main and rod bearings of crankshafts |
| CN102416433A (en) * | 2011-09-08 | 2012-04-18 | 仪征市福斯特机械制造有限责任公司 | Technology for machining pin shaft |
| CN102658455A (en) * | 2012-05-04 | 2012-09-12 | 熔盛机械有限公司 | Manufacturing method for preventing long pin shaft of working device of excavator from deforming |
| CN102756245A (en) * | 2012-07-28 | 2012-10-31 | 卢德文 | Environment-friendly high-density wear-resistant chain pin shaft and manufacturing cost thereof |
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| CN103331583A (en) | 2013-10-02 |
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Effective date of registration: 20180523 Address after: 221000 south side of 310 National Road, Xuzhou Industrial Park, Jiangsu Patentee after: XCMG XUZHOU CRAWLER CHASSIS CO., LTD. Address before: 221004 3 Tuo Lan Shan Road, Xuzhou Economic Development Zone, Jiangsu Patentee before: XCMG Railway Equipment Co., Ltd. |
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