CN104128762A - Lathe spindle machining technology facilitating machining efficiency and product quality - Google Patents
Lathe spindle machining technology facilitating machining efficiency and product quality Download PDFInfo
- Publication number
- CN104128762A CN104128762A CN201410355143.4A CN201410355143A CN104128762A CN 104128762 A CN104128762 A CN 104128762A CN 201410355143 A CN201410355143 A CN 201410355143A CN 104128762 A CN104128762 A CN 104128762A
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- machining
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- product quality
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- lathe spindle
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- 238000003754 machining Methods 0.000 title claims abstract description 31
- 238000005516 engineering process Methods 0.000 title claims abstract description 17
- 238000005242 forging Methods 0.000 claims abstract description 15
- 238000007514 turning Methods 0.000 claims abstract description 13
- 238000005520 cutting process Methods 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000010791 quenching Methods 0.000 claims description 21
- 230000000171 quenching effect Effects 0.000 claims description 21
- 238000009413 insulation Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 238000005496 tempering Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 9
- 230000003746 surface roughness Effects 0.000 description 3
- 238000005457 optimization Methods 0.000 description 2
- 238000004886 process control Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a lathe spindle machining technology facilitating machining efficiency and product 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 40Gr. According to the lathe spindle machining technology, the machining efficiency of a spindle is high, the product quality is good, 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 product 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 product quality.
For the problems referred to above, a kind of lathe spindle processing technology that is conducive to working (machining) efficiency and product 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 product 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 40Gr, described forging and normalizing operation, for first blank is heated to 1050 DEG C to 1200 DEG C, are carried out stage-hardening after insulation is no less than 1h, and described stage-hardening is for making blank quenching, and the temperature of quenching is reduced to 150 DEG C to 200 DEG C, insulation is no less than 0.5h;
Repeat above-mentioned stage-hardening, obtain rough forging until blank temperature drops to 180 DEG C to 250 DEG C, by rough forging be heated to that 650 DEG C of-670 DEG C of insulations are no less than that 2h sand is cold, oil cooling or stove is cold completes normalizing.
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 50HRC, toughness 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, more than be 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, 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 product 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 40Gr, described forging and normalizing operation, for first blank is heated to 1050 DEG C to 1200 DEG C, are carried out stage-hardening after insulation is no less than 1h, and described stage-hardening is for making blank quenching, and the temperature of quenching is reduced to 150 DEG C to 200 DEG C, insulation is no less than 0.5h;
Repeat above-mentioned stage-hardening, obtain rough forging until blank temperature drops to 180 DEG C to 250 DEG C, by rough forging be heated to that 650 DEG C of-670 DEG C of insulations are no less than that 2h sand is cold, oil cooling or stove is cold completes normalizing.
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 50HRC, toughness 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, more than be 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.
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 product 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 40Gr, described forging and normalizing operation, for first blank is heated to 1050 DEG C to 1200 DEG C, are carried out stage-hardening after insulation is no less than 1h, and described stage-hardening is for making blank quenching, and the temperature of quenching is reduced to 150 DEG C to 200 DEG C, insulation is no less than 0.5h;
Repeat above-mentioned stage-hardening, obtain rough forging until blank temperature drops to 180 DEG C to 250 DEG C, by rough forging be heated to that 650 DEG C of-670 DEG C of insulations are no less than that 2h sand is cold, oil cooling or stove is cold completes normalizing.
2. a kind of lathe spindle processing technology that is conducive to working (machining) efficiency and product 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 product 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 product 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410355143.4A CN104128762A (en) | 2014-07-24 | 2014-07-24 | Lathe spindle machining technology facilitating machining efficiency and product quality |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410355143.4A CN104128762A (en) | 2014-07-24 | 2014-07-24 | Lathe spindle machining technology facilitating machining efficiency and product quality |
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| CN104128762A true CN104128762A (en) | 2014-11-05 |
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| CN201410355143.4A Pending CN104128762A (en) | 2014-07-24 | 2014-07-24 | Lathe spindle machining technology facilitating machining efficiency and product quality |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588977A (en) * | 2014-11-25 | 2015-05-06 | 吴中区长桥诚惠机械加工厂 | Machining technology for connecting sleeve |
| CN106041428A (en) * | 2016-06-30 | 2016-10-26 | 德阳万达重型机械设备制造有限公司 | Large-size roller wheel for adhesive tape machine and machining technology of large-size roller wheel for adhesive tape machine |
| CN106346203A (en) * | 2016-10-11 | 2017-01-25 | 东莞市东盛迪密封制品有限公司 | Inner bushing framework manufacturing method |
| CN109702436A (en) * | 2018-12-28 | 2019-05-03 | 宁波市鄞州顺亨机械配件厂(普通合伙) | Processing technology of a servo power head and its main shaft |
| CN110539130A (en) * | 2019-07-31 | 2019-12-06 | 福达合金材料股份有限公司 | processing technology and processing device for frame circuit breaker busbar |
| CN111390100A (en) * | 2020-05-13 | 2020-07-10 | 上海长特锻造有限公司 | Forging process of inner star wheel |
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| 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 |
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2014
- 2014-07-24 CN CN201410355143.4A patent/CN104128762A/en active Pending
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| 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 |
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Non-Patent Citations (2)
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| 刘守勇: "《机械制造工艺与机床夹具》", 30 July 1994 * |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588977A (en) * | 2014-11-25 | 2015-05-06 | 吴中区长桥诚惠机械加工厂 | Machining technology for connecting sleeve |
| CN106041428A (en) * | 2016-06-30 | 2016-10-26 | 德阳万达重型机械设备制造有限公司 | Large-size roller wheel for adhesive tape machine and machining technology of large-size roller wheel for adhesive tape machine |
| CN106346203A (en) * | 2016-10-11 | 2017-01-25 | 东莞市东盛迪密封制品有限公司 | Inner bushing framework manufacturing method |
| CN106346203B (en) * | 2016-10-11 | 2019-03-22 | 东莞市东盛迪密封制品有限公司 | The production method of neck bush skeleton |
| CN109702436A (en) * | 2018-12-28 | 2019-05-03 | 宁波市鄞州顺亨机械配件厂(普通合伙) | Processing technology of a servo power head and its main shaft |
| CN110539130A (en) * | 2019-07-31 | 2019-12-06 | 福达合金材料股份有限公司 | processing technology and processing device for frame circuit breaker busbar |
| CN111390100A (en) * | 2020-05-13 | 2020-07-10 | 上海长特锻造有限公司 | Forging process of inner star wheel |
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Application publication date: 20141105 |
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