CN104128753A - Lathe spindle machining technology facilitating machining efficiency and surface quality - Google Patents
Lathe spindle machining technology facilitating machining efficiency and surface quality Download PDFInfo
- Publication number
- CN104128753A CN104128753A CN201410354442.6A CN201410354442A CN104128753A CN 104128753 A CN104128753 A CN 104128753A CN 201410354442 A CN201410354442 A CN 201410354442A CN 104128753 A CN104128753 A CN 104128753A
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- China
- Prior art keywords
- machining
- sequence
- efficiency
- lathe spindle
- surface quality
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
Abstract
The invention discloses a lathe spindle machining technology facilitating machining efficiency and surface quality. The technology comprises the steps of rough machining, semi-finish machining and finish machining in sequence. The step of rough machining comprises the steps of blank preparation, heat treatment, length cutting, outer circle and end face rough turning, central hole drilling, forging and normalizing in sequence. The step of semi-finish machining comprises the steps of heat treatment and semi-finish turning in sequence. The step of finish machining comprises the steps of local high-frequency hardening, finish turning and outer surface grinding in sequence. Blanks are made of steel 45#. According to the lathe spindle machining technology, the machining efficiency of a spindle is high, the obtained spindle can keep dimensional stability and abrasion resistance for a long time, and the machining accuracy of a lathe is facilitated.
Description
Technical field
The present invention relates to lathe parts manufacturing process, particularly relate to a kind of lathe spindle processing technology that is conducive to working (machining) efficiency and surface quality.
Background technology
Main shaft is the vitals of lathe, and concerning high speed precision lathe, lathe turning machining accuracy depends on the precision of axis system to a great extent, and the precision of axis system is subject to the impact of geometric accuracy, Static and dynamic rigidity and the hot property of axis system.Therefore, the precision that how to improve axis system in lathe arranges is the key of design of lathe, and lathe spindle rotating accuracy is one of main precision control index of lathe, directly affects machining accuracy and the surface roughness of part to be processed.The manufacturing process of machine tool chief axis has crucial impact to the quality of main shaft, how further to optimize lathe spindle manufacturing process, is the important channel of improving lathe workpiece crudy, ensureing part qualification rate.
Summary of the invention
Manufacturing process for above-mentioned machine tool chief axis has crucial impact to the quality of main shaft, how further to optimize lathe spindle manufacturing process, be the problem that improves lathe workpiece crudy, ensures the important channel of part qualification rate, the invention provides a kind of lathe spindle processing technology that is conducive to working (machining) efficiency and surface quality.
For the problems referred to above, a kind of lathe spindle processing technology that is conducive to working (machining) efficiency and surface quality provided by the invention reaches goal of the invention by following technical essential: a kind of lathe spindle processing technology that is conducive to working (machining) efficiency and surface quality, comprise roughing in sequence, semifinishing and fine finishining, described roughing comprises that blank is got the raw materials ready in sequence, length cutting, rough turn cylindrical and end face, centre bore drill, forging, normalizing;
Described semifinishing comprises heat treatment in sequence and half finish turning;
Described fine finishining comprises local high-frequency quenching in sequence, finish turning, outer surface grinding;
Blank material is 45# steel, described heat treatment comprises quench hot and lonneal in sequence, the temperature of described quench hot is any number in 820 DEG C to 850 DEG C, the quench hot time is not less than 0.8h, the temperature of described lonneal is any number in 160 DEG C to 190 DEG C, the lonneal time is not less than 1h, between described blank blanking and inner circle and Excircle machining operation, also comprises and forges step.
Further technical scheme is:
In described roughing, semifinishing and fine finishining, include chamfering process.
Described centre bore drills and comprises that isometrical blind hole drills with follow-up and on the basis of blind hole, carry out taper hole turning.
Described high-frequency quenching is the quenching frequency that adopts 80KHz-100KHz, and the follow-up tempering step that is also provided with 180 DEG C-200 DEG C of high-frequency quenching.
The present invention has following beneficial effect:
1, lathe spindle processing technology provided by the invention, by the roughing, semifinishing and the large step of fine finishining three that arrange, can effectively reduce the cutting output of accurately controlling cutting in main shaft manufacture process for size, is conducive to improve the working (machining) efficiency of main shaft.
2, by arrange roughing, semifinishing and the large step of fine finishining three and choose rational process control parameter, the main shaft hardness obtaining can arrive 45HRC, center toughness is strong, shock resistance is good, high-frequency quenching has effectively improved the wearability on main shaft surface, particularly be conducive to the position that axle journal or other may produce relative friction, be more than arranged so that the main shaft obtaining by this method can keep its dimensional stability for a long time, is conducive to the machining accuracy of lathe.
3, by the Technology for Heating Processing arranging in roughing operation, make in heat treatment process the surperficial full hardening deepness of main shaft can arrive 7mm even more, this is convenient to realize and still has certain thickness through hardening layer completing main shaft surface after machining, be conducive to the rigidity of main shaft and the wearability of outer surface, be convenient to keep the long-term stability of rotating of main shaft.
4, length cutting, rough turn cylindrical and end face machining operation and forging, normalizing heat treatment step have been adjusted compared to prior art, the thickness that the adjustment of above operation is stripped from the production process of main shaft cementation zone in the cutting of size, surface roughness or grinding is few, the thickness of the main shaft cementation zone that is conducive to obtain, thereby intensity, rigidity, wearability and the shock resistance of optimization main shaft.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but structure of the present invention is not limited only to following examples.
Embodiment 1:
A kind of lathe spindle processing technology that is conducive to working (machining) efficiency and surface quality, comprise roughing in sequence, semifinishing and fine finishining, described roughing comprises that blank is got the raw materials ready in sequence, length cutting, rough turn cylindrical and end face, centre bore drill, forging, normalizing;
Described semifinishing comprises heat treatment in sequence and half finish turning;
Described fine finishining comprises local high-frequency quenching in sequence, finish turning, outer surface grinding;
Blank material is 45# steel, described heat treatment comprises quench hot and lonneal in sequence, the temperature of described quench hot is any number in 820 DEG C to 850 DEG C, the quench hot time is not less than 0.8h, the temperature of described lonneal is any number in 160 DEG C to 190 DEG C, the lonneal time is not less than 1h, between described blank blanking and inner circle and Excircle machining operation, also comprises and forges step.
Lathe spindle processing technology provided by the invention, by the roughing, semifinishing and the large step of fine finishining three that arrange, can effectively reduce the cutting output of accurately controlling cutting in main shaft manufacture process for size, is conducive to improve the working (machining) efficiency of main shaft.
By arrange roughing, semifinishing and the large step of fine finishining three and choose rational process control parameter, the main shaft hardness obtaining can arrive 45HRC, center toughness is strong, shock resistance is good, high-frequency quenching has effectively improved the wearability on main shaft surface, particularly be conducive to the position that axle journal or other may produce relative friction, be more than arranged so that the main shaft obtaining by this method can keep its dimensional stability for a long time, is conducive to the machining accuracy of lathe.
By the Technology for Heating Processing arranging in roughing operation, make in heat treatment process the surperficial full hardening deepness of main shaft can arrive 7mm even more, this is convenient to realize and still has certain thickness through hardening layer completing main shaft surface after machining, be conducive to the rigidity of main shaft and the wearability of outer surface, be convenient to keep the long-term stability of rotating of main shaft.
Length cutting, rough turn cylindrical and end face machining operation and forging, normalizing heat treatment step are adjusted compared to prior art, the thickness that the adjustment of above operation is stripped from the production process of main shaft cementation zone in the cutting of size, surface roughness or grinding is few, the thickness of the main shaft cementation zone that is conducive to obtain, thereby intensity, rigidity, wearability and the shock resistance of optimization main shaft.
Embodiment 2:
The present embodiment is further qualified on the basis of embodiment 1, in described roughing, semifinishing and fine finishining, includes chamfering process.
For ease of drilling of taper hole, drill efficiency to improve taper hole, described centre bore drills and comprises that isometrical blind hole drills with follow-up and on the basis of blind hole, carry out taper hole turning.
For ease of obtaining suitable case hardness and the depth of quenching, described high-frequency quenching is the quenching frequency that adopts 80KHz-100KHz, and the follow-up tempering step that is also provided with 180 DEG C-200 DEG C of high-frequency quenching.
Above content is the further description of the present invention being done in conjunction with concrete preferred embodiment, can not assert that the specific embodiment of the present invention is confined to these explanations.For general technical staff of the technical field of the invention, not departing from other embodiments that draw under technical scheme of the present invention, all should be included in protection scope of the present invention.
Claims (4)
1. one kind is conducive to the lathe spindle processing technology of working (machining) efficiency and surface quality, comprise roughing in sequence, semifinishing and fine finishining, it is characterized in that, described roughing comprises that blank is got the raw materials ready in sequence, length cutting, rough turn cylindrical and end face, centre bore drill, forging, normalizing;
Described semifinishing comprises heat treatment in sequence and half finish turning;
Described fine finishining comprises local high-frequency quenching in sequence, finish turning, outer surface grinding;
Blank material is 45# steel, described heat treatment comprises quench hot and lonneal in sequence, the temperature of described quench hot is any number in 820 DEG C to 850 DEG C, the quench hot time is not less than 0.8h, the temperature of described lonneal is any number in 160 DEG C to 190 DEG C, the lonneal time is not less than 1h, between described blank blanking and inner circle and Excircle machining operation, also comprises and forges step.
2. a kind of lathe spindle processing technology that is conducive to working (machining) efficiency and surface quality according to claim 1, is characterized in that, in described roughing, semifinishing and fine finishining, includes chamfering process.
3. a kind of lathe spindle processing technology that is conducive to working (machining) efficiency and surface quality according to claim 1, is characterized in that, described centre bore drills and comprises that isometrical blind hole drills with follow-up and on the basis of blind hole, carry out taper hole turning.
4. a kind of lathe spindle processing technology that is conducive to working (machining) efficiency and surface quality according to claim 1, it is characterized in that, described high-frequency quenching is the quenching frequency that adopts 80KHz-100KHz, and the follow-up tempering step that is also provided with 180 DEG C-200 DEG C of high-frequency quenching.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410354442.6A CN104128753A (en) | 2014-07-24 | 2014-07-24 | Lathe spindle machining technology facilitating machining efficiency and surface quality |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410354442.6A CN104128753A (en) | 2014-07-24 | 2014-07-24 | Lathe spindle machining technology facilitating machining efficiency and surface quality |
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| CN104128753A true CN104128753A (en) | 2014-11-05 |
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| CN201410354442.6A Pending CN104128753A (en) | 2014-07-24 | 2014-07-24 | Lathe spindle machining technology facilitating machining efficiency and surface quality |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106736320A (en) * | 2016-12-30 | 2017-05-31 | 重庆纵翼机械制造有限公司 | The processing method of axle |
| CN108673072A (en) * | 2018-08-01 | 2018-10-19 | 重庆通用工业(集团)有限责任公司 | Face-hardened large thin-wall stainless steel axle sleeve manufacturing process |
| CN112719800A (en) * | 2019-09-30 | 2021-04-30 | 福州力王电子科技有限公司 | Machining method for rotating main shaft of high-precision handheld grinding engraving machine |
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| DE102010053119A1 (en) * | 2010-12-01 | 2012-06-06 | Robert Bosch Gmbh | Method for producing a threaded spindle with a large bearing seat |
| CN102764954A (en) * | 2012-06-26 | 2012-11-07 | 江苏金源锻造股份有限公司 | Forging process for wind generator spindle |
| CN103194585A (en) * | 2013-04-13 | 2013-07-10 | 佛山市顺德区金泰德胜电机有限公司 | Manufacturing method of motor spindle of hybrid electric vehicle |
| CN103624505A (en) * | 2013-11-29 | 2014-03-12 | 重庆清平机械厂 | Wind power output gear shaft machining method |
| CN103722351A (en) * | 2013-12-04 | 2014-04-16 | 大连洁能重工机械有限公司 | Process for machining gear main shaft of high-power wind turbine generator set |
| CN103894789A (en) * | 2012-12-28 | 2014-07-02 | 大连瓦特重机床有限公司 | Machine tool spindle machining method |
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2014
- 2014-07-24 CN CN201410354442.6A patent/CN104128753A/en active Pending
Patent Citations (6)
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| DE102010053119A1 (en) * | 2010-12-01 | 2012-06-06 | Robert Bosch Gmbh | Method for producing a threaded spindle with a large bearing seat |
| CN102764954A (en) * | 2012-06-26 | 2012-11-07 | 江苏金源锻造股份有限公司 | Forging process for wind generator spindle |
| CN103894789A (en) * | 2012-12-28 | 2014-07-02 | 大连瓦特重机床有限公司 | Machine tool spindle machining method |
| CN103194585A (en) * | 2013-04-13 | 2013-07-10 | 佛山市顺德区金泰德胜电机有限公司 | Manufacturing method of motor spindle of hybrid electric vehicle |
| CN103624505A (en) * | 2013-11-29 | 2014-03-12 | 重庆清平机械厂 | Wind power output gear shaft machining method |
| CN103722351A (en) * | 2013-12-04 | 2014-04-16 | 大连洁能重工机械有限公司 | Process for machining gear main shaft of high-power wind turbine generator set |
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| 丁晖: "《金属材料及热处理》", 31 August 2012 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106736320A (en) * | 2016-12-30 | 2017-05-31 | 重庆纵翼机械制造有限公司 | The processing method of axle |
| CN108673072A (en) * | 2018-08-01 | 2018-10-19 | 重庆通用工业(集团)有限责任公司 | Face-hardened large thin-wall stainless steel axle sleeve manufacturing process |
| CN112719800A (en) * | 2019-09-30 | 2021-04-30 | 福州力王电子科技有限公司 | Machining method for rotating main shaft of high-precision handheld grinding engraving machine |
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Application publication date: 20141105 |
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