CN104128754A - Lathe spindle machining technology facilitating surface quality - Google Patents
Lathe spindle machining technology facilitating surface quality Download PDFInfo
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- CN104128754A CN104128754A CN201410354476.5A CN201410354476A CN104128754A CN 104128754 A CN104128754 A CN 104128754A CN 201410354476 A CN201410354476 A CN 201410354476A CN 104128754 A CN104128754 A CN 104128754A
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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
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Abstract
The invention discloses a lathe spindle machining technology facilitating 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 and central hole drilling 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 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 surface quality.
For the problems referred to above, a kind of lathe spindle processing technology that is conducive to 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 surface quality, comprise roughing in sequence, semifinishing and fine finishining, described roughing comprises that blank is got the raw materials ready in sequence, heat treatment, length cutting, rough turn cylindrical and end face, centre bore drill;
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 825 DEG C to 835 DEG C, the quench hot time is not less than 0.8h, the temperature of described lonneal is any number in 165 DEG C to 185 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.
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 lathe spindle processing technology that is conducive to surface quality, comprises roughing in sequence, semifinishing and fine finishining, and described roughing comprises that blank is got the raw materials ready in sequence, heat treatment, length cutting, rough turn cylindrical and end face, centre bore drill;
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 825 DEG C to 835 DEG C, the quench hot time is not less than 0.8h, the temperature of described lonneal is any number in 165 DEG C to 185 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.
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 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, heat treatment, length cutting, rough turn cylindrical and end face, centre bore drill;
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 825 DEG C to 835 DEG C, the quench hot time is not less than 0.8h, the temperature of described lonneal is any number in 165 DEG C to 185 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 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 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 surface quality according to claim 1, 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410354476.5A CN104128754A (en) | 2014-07-24 | 2014-07-24 | Lathe spindle machining technology facilitating surface quality |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410354476.5A CN104128754A (en) | 2014-07-24 | 2014-07-24 | Lathe spindle machining technology facilitating surface quality |
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| CN104128754A true CN104128754A (en) | 2014-11-05 |
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| CN201410354476.5A Pending CN104128754A (en) | 2014-07-24 | 2014-07-24 | Lathe spindle machining technology facilitating surface quality |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2718973A1 (en) * | 1976-05-06 | 1977-11-17 | Ramo Sa | ADJUSTING DEVICE FOR THE SAMPLE PIECE IN A REPRODUCTION MACHINE |
| CN102029504A (en) * | 2009-09-30 | 2011-04-27 | 成都成量工具集团有限公司 | Machining technology of inner cone hole of main shaft |
| CN102501035A (en) * | 2011-10-12 | 2012-06-20 | 南京金鑫传动设备有限公司 | Quenching and tempering method in tooth punching process of gear with medium-hard tooth surface |
| CN103170802A (en) * | 2013-03-04 | 2013-06-26 | 南京紫薇精密机械有限公司 | Processing method for improving stability of Gcr15 main shaft |
| CN103894789A (en) * | 2012-12-28 | 2014-07-02 | 大连瓦特重机床有限公司 | Machine tool spindle machining method |
-
2014
- 2014-07-24 CN CN201410354476.5A patent/CN104128754A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2718973A1 (en) * | 1976-05-06 | 1977-11-17 | Ramo Sa | ADJUSTING DEVICE FOR THE SAMPLE PIECE IN A REPRODUCTION MACHINE |
| CN102029504A (en) * | 2009-09-30 | 2011-04-27 | 成都成量工具集团有限公司 | Machining technology of inner cone hole of main shaft |
| CN102501035A (en) * | 2011-10-12 | 2012-06-20 | 南京金鑫传动设备有限公司 | Quenching and tempering method in tooth punching process of gear with medium-hard tooth surface |
| CN103894789A (en) * | 2012-12-28 | 2014-07-02 | 大连瓦特重机床有限公司 | Machine tool spindle machining method |
| CN103170802A (en) * | 2013-03-04 | 2013-06-26 | 南京紫薇精密机械有限公司 | Processing method for improving stability of Gcr15 main shaft |
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Application publication date: 20141105 |
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