CN105689967A - Machining method for machine tool spindle part - Google Patents
Machining method for machine tool spindle part Download PDFInfo
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- CN105689967A CN105689967A CN201410688416.7A CN201410688416A CN105689967A CN 105689967 A CN105689967 A CN 105689967A CN 201410688416 A CN201410688416 A CN 201410688416A CN 105689967 A CN105689967 A CN 105689967A
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Abstract
The invention discloses a machining method for a machine tool spindle part. The machining method is characterized by comprising the following steps of (1) selecting a material of the part: selecting 38CrMoAlA round steel as the material; (2) blanking a profile, namely blanking to obtain the required length; (3) forging; (4) carrying out normalizing treatment; (5) carrying out rough machining; (6) carrying out quenching and tempering treatment; (7) carrying out semi-finish machining; (8) carrying out surface quenching and low-temperature tempering; (9) carrying out fine grinding; and (10) sequentially carrying out rust prevention treatment, checking, packaging and putting into storage. The machining method for the machine tool spindle part is capable of strictly controlling technological parameters of all stages, remarkable in process reduction, simple in process, convenient to operate and low in energy consumption.
Description
Technical field
The invention belongs to mechanical processing technique field, specifically a kind of machine tool chief axis method of processing parts。
Background technology
In the prior art, a kind of machine tool chief axis, the failure mode of its main shaft can be divided into lower three types: excessive deformation: main shaft in use produces to design unallowed excessive deformation, including elastic deformation, plastic deformation and high-temerature creep；Fracture: the section including causing under serious overload condition is pinched, the fracture caused under disposable high impact loads effect and the fatigue fracture caused by alternate load long term。Fatigue fracture is common failure mode, mainly torsional fatigue, namely flexural fatigue；Abrasion: axle journal place, the outer excessive wear of spline so that it is lose the size of regulation, geometries and precision and lost efficacy。
Summary of the invention
In view of the deficiency that prior art exists, it is an object of the invention to provide the machine tool chief axis processing method of novelty, it is possible to effect decreases inefficacy and occurs, and can save energy and reduce the cost, and improves performance, reduces production cost, it is thus achieved that considerable economic benefit processing method。
The technical scheme realizing the object of the invention is as follows:
A kind of machine tool chief axis method of processing parts, it is characterised in that this processing method comprises the following steps:
(1) Materials Selection: material selection 38CrMoAlA round steel；
(2) cutting of material: blanking obtains required scale lengths；
(3) forging: after heating 15 seconds with the medium frequency equipment of 500KW/H, forge when heating-up temperature is to 1200～1300 DEG C；
(4) normalized treatment: normalizing temperature 890～950 DEG C, hardness 180～220HB after air cooling；
(5) roughing: roughing forms semi-finished product, and pre-made allowance 0.7～1.5mm, its surface roughness Ra is less than 6.3um；
(6) modifier treatment: hardening heat 850～870 DEG C, quenching medium adopts oil, high tempering temperature 520～560 DEG C；
(7) semifinishing: pre-made allowance 0.1～0.15mm after semifinishing, its surface roughness Ra is less than 1.6um；
(8) surface hardening and lonneal: employing high-frequency induction surface induction hardening technological parameter is: voltage 455V～510V, frequency 4200Hz～7300Hz, induction coil translational speed respectively 620mm/min～780mm/min, quenching liquid concentration is 2%～4%, low tempering temperatures 150～170 DEG C；
(9) ground finish: after polish, its surface roughness Ra is less than 0.2um；
(10) antirust successively, inspection, packaging, warehouse-in。
A kind of machine tool chief axis method of processing parts of the present invention, strictly each stage process parameter is controlled, operation substantially reduces, technique is simple, easy to operate, energy loss is low, and material source is wide and cheap, it is easy to realizes machine tool chief axis and is used mechanization and the integration of whole processed process by blank to entrucking。
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described, and its operating procedure is as follows:
A kind of machine tool chief axis method of processing parts, this processing method comprises the following steps:
(1) Materials Selection: material selection 38CrMoAlA round steel；
(2) cutting of material: blanking obtains required scale lengths；
(3) forging: after heating 15 seconds with the medium frequency equipment of 500KW/H, forge when heating-up temperature is to 1200～1300 DEG C；
(4) normalized treatment: normalizing temperature 890～950 DEG C, hardness 180～220HB after air cooling；
(5) roughing: roughing forms semi-finished product, and pre-made allowance 0.7～1.5mm, its surface roughness Ra is less than 6.3um；
(6) modifier treatment: hardening heat 850～870 DEG C, quenching medium adopts oil, high tempering temperature 520～560 DEG C；
(7) semifinishing: pre-made allowance 0.1～0.15mm after semifinishing, its surface roughness Ra is less than 1.6um；
(8) surface hardening and lonneal: employing high-frequency induction surface induction hardening technological parameter is: voltage 455V～510V, frequency 4200Hz～7300Hz, induction coil translational speed respectively 620mm/min～780mm/min, quenching liquid concentration is 2%～4%, low tempering temperatures 150～170 DEG C；
(9) ground finish: after polish, its surface roughness Ra is less than 0.2um；
(10) antirust successively, inspection, packaging, warehouse-in。
The preferred embodiment of the present invention described in detail above。Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to the design of the present invention without creative work。Therefore, all technical staff in the art, all should at the protection domain being defined in the patent claims under this invention's idea on the basis of existing technology by logic minute analysis, reasoning or the available technical scheme of limited experiment。
Claims (1)
1. a machine tool chief axis method of processing parts, it is characterised in that this processing method comprises the following steps:
(1) Materials Selection: material selection 38CrMoAlA round steel；
(2) cutting of material: blanking obtains required scale lengths；
(3) forging: after heating 15 seconds with the medium frequency equipment of 500KW/H, forge when heating-up temperature is to 1200～1300 DEG C；
(4) normalized treatment: normalizing temperature 890～950 DEG C, hardness 180～220HB after air cooling；
(5) roughing: roughing forms semi-finished product, and pre-made allowance 0.7～1.5mm, its surface roughness Ra is less than 6.3um；
(6) modifier treatment: hardening heat 850～870 DEG C, quenching medium adopts oil, high tempering temperature 520～560 DEG C；
(7) semifinishing: pre-made allowance 0.1～0.15mm after semifinishing, its surface roughness Ra is less than 1.6um；
(8) surface hardening and lonneal: employing high-frequency induction surface induction hardening technological parameter is: voltage 455V～510V, frequency 4200Hz～7300Hz, induction coil translational speed respectively 620mm/min～780mm/min, quenching liquid concentration is 2%～4%, low tempering temperatures 150～170 DEG C；
(9) ground finish: after polish, its surface roughness Ra is less than 0.2um；
(10) antirust successively, inspection, packaging, warehouse-in。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410688416.7A CN105689967A (en) | 2014-11-26 | 2014-11-26 | Machining method for machine tool spindle part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410688416.7A CN105689967A (en) | 2014-11-26 | 2014-11-26 | Machining method for machine tool spindle part |
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| Publication Number | Publication Date |
|---|---|
| CN105689967A true CN105689967A (en) | 2016-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410688416.7A Pending CN105689967A (en) | 2014-11-26 | 2014-11-26 | Machining method for machine tool spindle part |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106544475A (en) * | 2016-11-04 | 2017-03-29 | 西安航空动力控制科技有限公司 | A kind of thinning method of metal material surface crystal grain |
| CN108436399A (en) * | 2018-05-31 | 2018-08-24 | 重庆市璧山区合成机械制造有限公司 | Motor lathe main shaft processing technology |
| CN108674468A (en) * | 2018-05-31 | 2018-10-19 | 重庆市璧山区合成机械制造有限公司 | The automobile-used processing unit (plant) of motor |
| CN111300071A (en) * | 2019-12-09 | 2020-06-19 | 长沙市雷锋重型锻造有限公司 | Production line for engineering machinery parts |
| CN111546009A (en) * | 2020-05-15 | 2020-08-18 | 淮北良信矿山机器有限公司 | Manufacturing method of mining machinery axle |
-
2014
- 2014-11-26 CN CN201410688416.7A patent/CN105689967A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106544475A (en) * | 2016-11-04 | 2017-03-29 | 西安航空动力控制科技有限公司 | A kind of thinning method of metal material surface crystal grain |
| CN108436399A (en) * | 2018-05-31 | 2018-08-24 | 重庆市璧山区合成机械制造有限公司 | Motor lathe main shaft processing technology |
| CN108674468A (en) * | 2018-05-31 | 2018-10-19 | 重庆市璧山区合成机械制造有限公司 | The automobile-used processing unit (plant) of motor |
| CN111300071A (en) * | 2019-12-09 | 2020-06-19 | 长沙市雷锋重型锻造有限公司 | Production line for engineering machinery parts |
| CN111546009A (en) * | 2020-05-15 | 2020-08-18 | 淮北良信矿山机器有限公司 | Manufacturing method of mining machinery axle |
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Application publication date: 20160622 |