CN103331583A - Caterpillar track hinge pin machining method - Google Patents
Caterpillar track hinge pin machining method Download PDFInfo
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- CN103331583A CN103331583A CN2013102937067A CN201310293706A CN103331583A CN 103331583 A CN103331583 A CN 103331583A CN 2013102937067 A CN2013102937067 A CN 2013102937067A CN 201310293706 A CN201310293706 A CN 201310293706A CN 103331583 A CN103331583 A CN 103331583A
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- hinge pin
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- caterpillar track
- pin axle
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Abstract
The invention discloses a caterpillar track hinge pin machining method and belongs to the technical field of caterpillar track hinge pin machining. The caterpillar track hinge pin machining method comprises the steps that an initial bar is placed in a flaying machine, then the bar enters a roller press and is rolled, the bar is cut, the two ends of the bar are milled through a milling hitting machine and are chamfered, after quenching treatment is conducted on the bar, tempering treatment is conducted on the bar, finally the bar is ground, and therefore a required caterpillar track hinge pin is obtained. Compared with the prior art, the caterpillar track hinge pin machining method omits a hardening and tempering process, so that the production cost is saved; due to the use of the flaying machine, the work efficiency is greatly improved; plastic deformation is generated on the surface of the hinge pin through the rolling process, metal on the surface flows, so that pits of cutting textures are filled, the surface roughness is reduced, the pressure stress of the surface is increased, the toughness of the workpiece is improved, the fatigue performance of the finished product is increased, and therefore the caterpillar track hinge pin finished product with low cost and high quality is obtained through the caterpillar track hinge pin machining method.
Description
Technical field
The present invention relates to a kind of master track pin axle, specifically is a kind of master track pin axle processing method, belongs to master track pin axle processing technique field.
Background technology
In the prior art, the master track pin axle that is used for crawler body is not standarized component, so the process of master track pin spindle unit has diversity, particularity, and the working environment of master track pin axle is quite abominable, therefore its wearability and resistance to impact had very high requirement, this just requires master track pin axle processing method must seek a kind of special, ripe processing method, to guarantee the quality requirement of product.
The processing method of traditional chain rail bearing 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 of the requirement that it can guarantee product quality, but its each operation more complicated, production efficiency is low, and the equipment input cost is big, can't satisfy the requirement that modern industry is produced.
Summary of the invention
Problem at above-mentioned prior art existence, the invention provides a kind of master track pin axle processing method, purpose is when saving production cost, and increases work efficiency, and makes the 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 master track pin axle processing method is:
(1), the initial bar of master track pin axle is put into flaying machine, removal bar blemish, and assurance material required diameter;
(2), bar is carried out roll extrusion by roller press;
(3), cutting bar;
(4), make machine the two ends of bar are carried out milling and carried out chamfering by milling, make the bar roughness reach Ra12.5;
(5), bar is put into quenching machine, temperature is risen to 800～900 ℃, bar is carried out spray quench;
(6), bar put into tempering furnace carry out temper, temperature is 180～260 ℃, temperature retention time 1～2 hour;
(7), at last bar is carried out grinding, make the bar roughness reach Ra0.8～Ra1.6, can obtain needed master track pin axle.
The temperature of in the step (5) bar being carried out Quenching Treatment is 880 ℃.
The hardening media that in the step (5) bar is carried out Quenching Treatment is water base.
The temperature of in the step (6) bar being carried out temper is 200 ℃, temperature retention time 2 hours.
Step is carried out grinding with bar in (7), makes the bar roughness reach Ra0.8.
Compared with prior art, this master track pin axle processing method is removed modified operation, has saved production cost; Use flaying machine to improve operating efficiency greatly; Rolling step not only makes the bearing pin surface produce plastic deformation, surface metal flows, fill up the pit of knife mark, reduce surface roughness, and increased surperficial compression, improve the toughness of workpiece, increased the fatigue behaviour of finished product, successfully obtained low-cost, high-quality master track pin axle finished product by this kind method.
The specific embodiment
The present invention will be further described below in conjunction with specific embodiment.
Present embodiment, with material 45 boron, diameter phi 40mm, the bar of length 9m are example explanation implementation of processes process of the present invention, procedure of processing is:
(1), the initial bar of master track pin axle is put into flaying machine, car is about 38mm to diameter, removes the bar blemish, and guarantees the material required diameter;
(2), bar is carried out roll extrusion by roller press;
(3), the cutting bar, adopting band sawing machine is segment about 215mm with the long bar cut growth of 9m;
(4), make machine the two ends of bar are carried out milling and carried out chamfering by milling, make the bar roughness reach Ra12.5;
(5), bar is put into quenching machine, temperature is risen to 800～900 ℃, bar is carried out spray quench;
(6), bar put into tempering furnace carry out temper, temperature is 180～260 ℃, temperature retention time 1～2 hour;
(7), at last bar is carried out grinding, make the bar roughness reach Ra0.8～Ra1.6, can obtain needed master track pin axle.
As preferably, the temperature of in step (5) bar being carried out Quenching Treatment is 880 ℃, and the hardening media that bar is carried out Quenching Treatment is water base; The temperature of in step (6) bar being carried out temper is 200 ℃, temperature retention time 2 hours; In step (7), bar is carried out grinding, make the bar roughness reach Ra0.8.Learn through practice, under this quenching condition, can obtain the ideal master track pin axle of performance.
Compare with conventional method, remove modified operation, save cost; Use flaying machine to improve operating efficiency greatly; Rolling step not only makes the bearing pin surface produce plastic deformation, and surface metal flows, and fills up the pit of knife mark, reduces surface roughness, and has increased surperficial compression, has improved the toughness of workpiece, increases the fatigue behaviour of finished product.Low-cost, high-quality master track pin axle finished product have successfully been obtained by this kind method.
Claims (5)
1. master track pin axle processing method is characterized in that procedure of processing is:
(1), the initial bar of master track pin axle is put into flaying machine, removal bar blemish, and assurance material required diameter;
(2), bar is carried out roll extrusion by roller press;
(3), cutting bar;
(4), make machine the two ends of bar are carried out milling and carried out chamfering by milling, make the bar roughness reach Ra12.5;
(5), bar is put into quenching machine, temperature is risen to 800～900 ℃, bar is carried out spray quench;
(6), bar put into tempering furnace carry out temper, temperature is 180～260 ℃, temperature retention time 1～2 hour;
(7), at last bar is carried out grinding, make the bar roughness reach Ra0.8～Ra1.6, can obtain needed master track pin axle.
2. a kind of master track pin axle processing method according to claim 1 is characterized in that, the temperature of in the step (5) bar being carried out Quenching Treatment is 880 ℃.
3. a kind of master track pin axle processing method according to claim 1 and 2 is characterized in that, the hardening media that in the step (5) bar is carried out Quenching Treatment is water base.
4. a kind of master track pin axle processing method according to claim 1 is characterized in that, the temperature of in the step (6) bar being carried out temper is 200 ℃, temperature retention time 2 hours.
5. a kind of master track pin axle processing method according to claim 1 is characterized in that step is carried out grinding with bar in (7), makes the bar roughness reach Ra0.8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310293706.7A CN103331583B (en) | 2013-07-12 | 2013-07-12 | A kind of Caterpillar track hinge pin processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310293706.7A CN103331583B (en) | 2013-07-12 | 2013-07-12 | A kind of Caterpillar track hinge pin processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103331583A true CN103331583A (en) | 2013-10-02 |
| CN103331583B CN103331583B (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310293706.7A Active CN103331583B (en) | 2013-07-12 | 2013-07-12 | A kind of Caterpillar track hinge pin processing method |
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Cited By (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 |
Citations (7)
| 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 |
| US20080188337A1 (en) * | 2007-02-01 | 2008-08-07 | Jtekt Corporation | Power transmission chain pin and manufacture method thereof |
| 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 |
-
2013
- 2013-07-12 CN CN201310293706.7A patent/CN103331583B/en active Active
Patent Citations (7)
| 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 |
| US20080188337A1 (en) * | 2007-02-01 | 2008-08-07 | Jtekt Corporation | Power transmission chain pin and manufacture method thereof |
| 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 |
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103331583B (en) | 2016-01-27 |
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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. |