CN103433703A - Machining process of long hollow shaft - Google Patents
Machining process of long hollow shaft Download PDFInfo
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- CN103433703A CN103433703A CN2013103585648A CN201310358564A CN103433703A CN 103433703 A CN103433703 A CN 103433703A CN 2013103585648 A CN2013103585648 A CN 2013103585648A CN 201310358564 A CN201310358564 A CN 201310358564A CN 103433703 A CN103433703 A CN 103433703A
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- vast sky
- sky axle
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- endoporus
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Abstract
The invention discloses a machining process of a long hollow shaft. The long hollow shaft is machined according to the following steps: (1) a workblank of the long hollow shaft is placed on a self-centering clamp, drilling is carried out from the large end of the workblank, the end face of the large end of the workblank is turned and then a hole is bored in the end face of the large end of the workblank; (2) drilling is carried out from the small end of the workblank, the end face of the small end of the workblank is turned, and then a hole is bored in the end face of the small end of the workblank; (3) the two ends of the workblank are milled to form basic holes and inner holes, and machining of the long hollow shaft is finished. According to the machining process of the long hollow shaft, a high-cost anti-shock cutter bar and a high-cost cutter are needless, meanwhile, shock cracks, caused by turning, of the inner holes of a workpiece can be controlled in the whole machining process, precision of the chamfering circular degree of the product is high, production cost is reduced, and large-scale production is facilitated.
Description
Technical field
The present invention relates to a kind of mechanical processing technique of long hollow shaft type parts, particularly a kind of hollow shaft draw ratio reaches the mechanical processing technique of long hollow shaft type parts more than 3 times.
Background technology
Current, very universal in the use of field of machining Digit Control Machine Tool, each factory and enterprise has many Digit Control Machine Tools.The workman of operating numerical control lathe is more and more, and the Numeric Control Technology of required grasp also becomes increasingly complex.The 1970s and 1980s, just only have some large factories that Digit Control Machine Tool is arranged, and using it as the dotey, unless complicated part especially, general part is not processed on Digit Control Machine Tool, and application surface is very narrow, and the Numeric Control Technology talent seldom.Nowadays, each factory of Digit Control Machine Tool has, and is that high, medium and low machine tool has, and efficient, the high-precision potentiality of Digit Control Machine Tool are fully excavated out, and the Digit Control Machine Tool of each factory is all operated at full capacity.Product facility in the past, relatively simple for structure, need only get final product in machine tool processing.The engineening goods of now, be all that to possess function strong, miniaturization, the characteristics of highly versatile.So design of part becomes increasingly complex, much need could process with Digit Control Machine Tool.Need the part of Digit Control Machine Tool processing more and more.
Its center at axis body of hollow shaft is shaped with a through hole, and have an internal keyway in through hole, the outer surface of axis body is processed with the stairstepping cylinder, and have an outside keyway, the central through hole of this axle and the main shaft socket of pressing thorax, input power drives this axle by the travelling gear of installing on the cylinder on the axis body outer surface and is directly passed to press for extracting juice thorax main shaft.And the vast sky axle, two chamfers are benchmark, to benchmark, the requirement of beating is controlled in 0.03 endoporus.Traditional processes is to process on lathe, and endoporus and two chamfer one cutter turning are complete, and this technique one is will be with expensive vibration-resistant tool bar and cutter, the 2nd, the shake line of inner hole of workpiece during the turning of the more difficult control metal long cutting tool bar of process.Be difficult to reach requirement on an important indicator chamfering circularity of product, ratio of precision is lower, and production cost is higher, is unfavorable for producing in enormous quantities.
The patent of invention that number of patent application is 201010500951.7 provides the processing method of the large endoporus spacelike of a kind of microstome axle, and it is that first the inner maximum gauge endoporus of the hollow shaft section in needs processing is divided into two sections by hollow shaft; Then separate processing two ends, position endoporus from hollow shaft; The end face of two sections linkings that then will process adopts the method for electron beam welding to carry out butt welding; After finally being butt welded to together by two sections axles, again by each excircle dimension and each hole, groove is processed according to the size of designing requirement.Adopt this kind that hollow shaft is divided into to two sections and process respectively each endoporus to adopting after the designing requirement size electron beam welding to be butt welded to the method for carrying out again together each cylindrical and each hole, need first hollow shaft to be disconnected, and then welding processing, technological process is complicated, long in time limit, the practical application be unsuitable in production practices is promoted.
Summary of the invention
Technical problem to be solved by this invention is, overcome the existing technologic defect of lathe, the processing method of long hollow shaft type parts is provided, improve beat precision and circularity requirement, and redesign new process program, reach and improve precision simultaneously, cut down finished cost, enhance productivity, to overcome the deficiencies in the prior art, meet the requirement of batch production.
The present invention is by the following technical solutions: a kind of vast sky axle mechanical processing technique, and it completes the processing of vast sky axle according to following steps: step 1, vast sky axle blank is placed on self-centering fixture, and the boring of arrogant end, the described large end end face of car, then bore hole; Step 2, from small end boring, the described small end end face of car, then bore hole; Step 3, the datum hole at milling two ends and endoporus, complete the processing of vast sky axle.
As a kind of preferred version of vast sky axle mechanical processing technique of the present invention, wherein: boring described in step 1 is that in adopting, the cooling row that creeps into is holed.
As a kind of preferred version of vast sky axle mechanical processing technique of the present invention, wherein: the cutter material that in described step 1, the described large end end face of car is used is carbide alloy.
As a kind of preferred version of vast sky axle mechanical processing technique of the present invention, wherein: when milling two ends datum hole and endoporus, be to adopt four axles rotation processing and milling endoporus and datum hole in described step 3.
As a kind of preferred version of vast sky axle mechanical processing technique of the present invention, wherein: in described step 3 after vast sky axle blank one end datum hole and endoporus milling, milling other end datum hole and endoporus again after vast sky axle blank Rotate 180 °.
As a kind of preferred version of vast sky axle mechanical processing technique of the present invention, wherein: the selected knife bar of this mechanical processing technique is the special knife bar in mountain that diametric(al) can be finely tuned.
As a kind of preferred version of vast sky axle mechanical processing technique of the present invention, wherein: the datum hole at milling two ends in described step 3 also comprises the datum hole chamfer angle technique.
As a kind of preferred version of vast sky axle mechanical processing technique of the present invention, wherein: described datum hole chamfer angle technique adopts the moulding rose reamer to be processed.
With respect to prior art, the invention has the beneficial effects as follows: this vast sky axle mechanical processing technique is without adopting expensive vibration-resistant tool bar and cutter, simultaneously, the shake line of inner hole of workpiece when whole technical process is easily controlled turning, make on product chamfering circularity precision higher, production cost reduces, and is beneficial to production in enormous quantities.
The accompanying drawing explanation
Fig. 1 is boring, face work, bore hole schematic diagram.
Fig. 2 is boring, car small end face, bore hole schematic diagram.
Fig. 3 is milling two ends datum hole, endoporus schematic diagram.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Below describe embodiments of the invention in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label means same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, term " interior ", " outward ", " on ", the indicating position such as D score, 'fornt', 'back', " left side ", " right side " or position relationship be based on orientation shown in the drawings or position relationship, be only the present invention for convenience of description rather than require the present invention with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.
Refer to shown in Fig. 1～3, an embodiment of the invention have disclosed a kind of vast sky axle mechanical processing technique, and it is that vast sky axle blank is placed on self-centering fixture, then arrogant end boring, the described large end end face of car, then bore hole; In this processing step, boring adopts the interior cooling row boring of creeping into, can eliminate like this heat produced due to friction in boring procedure, suppress the generation of bits knurl, cooling fluid has lubricity simultaneously, reduced the fretting wear of cutter blade and supporting, guaranteed that cutter keeps good lubricating status under the high temperature of cutting region; Then from the small end of vast sky axle blank, hole, the described small end end face of car, then bore hole; Datum hole and the endoporus at last milling vast sky axle blank two ends, after vast sky axle blank one end datum hole and endoporus milling, milling other end datum hole and endoporus again after vast sky axle blank Rotate 180 °, thus complete the processing of vast sky axle.
This process using whole hard alloy knife bar carries out deep hole boring processing, and solve hole dimension Ф 48.5mm in the traditional handicraft hollow mandrel and relied on floating boring processing, the float support of knife bar, benchmark self precision does not reach the problem of requirement.And, after using integral carbide alloy knife bar, having guaranteed axiality requirement between endoporus that hollow shaft is processed and other endoporus, axiality numerical value can be controlled within 0.03; And the past, when thick fraising, adopts floating reamer in the situation that the ream surplus is inhomogeneous, the often secundly cutting of the floating cutter of cutter, produce the endoporus shift phenomenon.When finish reaming, also can't repair.Adopt now the whole hard alloy knife bar, can directly carry out deep hole boring processing, avoided in the past complicated process in deep hole machining, improved machining accuracy.
In actual production technique, the selected knife bar of mechanical processing technique of the present invention is the special knife bar in mountain that diametric(al) can be finely tuned, datum hole and the endoporus at milling vast sky axle blank two ends, after vast sky axle blank one end datum hole and endoporus milling, milling other end datum hole and endoporus again after vast sky axle blank Rotate 180 °, now need to carry out the datum hole chamfering, and the datum hole chamfering is to adopt the moulding rose reamer to be processed.
In sum, this vast sky axle mechanical processing technique, through the presentation of results of test of many times processing and practical application, adopts this processes successful, has proved and has applied feasibility and the advance that technique of the present invention is carried out the hollow shaft processing technology.New vast sky axle processing technology, can guarantee dimensional accuracy, surface roughness and strict Wall-Thickness Difference requirement after the vast sky axle is processed, and its technical merit and index all can reach the requirement of same kind of products at abroad, and have applied in batch production.
The foregoing is only better embodiment of the present invention; protection scope of the present invention is not limited with above-mentioned embodiment; in every case those of ordinary skills' equivalence that disclosure is done according to the present invention is modified or is changed, and all should include in the protection domain of putting down in writing in claims.
Claims (8)
1. a vast sky axle mechanical processing technique is characterized in that:
Complete the processing of vast sky axle according to following steps:
Step 1, be placed in vast sky axle blank on self-centering fixture, and the boring of arrogant end, the described large end end face of car, then bore hole;
Step 2, from small end boring, the described small end end face of car, then bore hole;
Step 3, the datum hole at milling two ends and endoporus, complete the processing of vast sky axle.
2. vast sky axle mechanical processing technique as claimed in claim 1 is characterized in that: boring described in step 1 is coolingly in adopting to creep into row boring.
3. vast sky axle mechanical processing technique as claimed in claim 1, it is characterized in that: the cutter material that in described step 1, the described large end end face of car is used is carbide alloy.
4. vast sky axle mechanical processing technique as claimed in claim 1 is characterized in that: in described step 3, when milling two ends datum hole and endoporus, be to adopt four axles rotation processing and milling endoporus and datum hole.
5. vast sky axle mechanical processing technique as claimed in claim 1 is characterized in that: in described step 3 after vast sky axle blank one end datum hole and endoporus milling, and milling other end datum hole and endoporus again after vast sky axle blank Rotate 180 °.
6. vast sky axle mechanical processing technique as claimed in claim 1 is characterized in that: the selected knife bar of this mechanical processing technique is the special knife bar in mountain that diametric(al) can be finely tuned.
7. vast sky axle mechanical processing technique as claimed in claim 1, it is characterized in that: the datum hole at milling two ends in described step 3 also comprises the datum hole chamfer angle technique.
8. vast sky axle mechanical processing technique as claimed in claim 7 is characterized in that: described datum hole chamfer angle technique adopts the moulding rose reamer to be processed.
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| CN2013103585648A CN103433703A (en) | 2013-08-16 | 2013-08-16 | Machining process of long hollow shaft |
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| CN2013103585648A CN103433703A (en) | 2013-08-16 | 2013-08-16 | Machining process of long hollow shaft |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103817487A (en) * | 2014-03-11 | 2014-05-28 | 宁波固远管件有限公司 | Cyclone chipping cutting processing technique |
| CN104723019A (en) * | 2013-12-24 | 2015-06-24 | 上海国上机电科技有限公司 | Hole machining method for motor cover |
| CN104786025A (en) * | 2015-04-16 | 2015-07-22 | 派罗特克（深圳）高温材料有限公司 | Method for machining thermoelectric couple protective sleeve by drilling cast iron bar |
| CN105750844A (en) * | 2016-04-29 | 2016-07-13 | 沈阳透平机械股份有限公司 | Processing method for hollow spindle of compressor |
| CN108637595A (en) * | 2018-04-03 | 2018-10-12 | 宁夏西北骏马电机制造股份有限公司 | Coalcutter hollow shaft processing method and grinding tip for being ground hollow shaft |
| CN108788825A (en) * | 2018-07-04 | 2018-11-13 | 重庆智博粉末冶金有限公司 | Special fixture and deep hole processing method for deep hole processing |
| CN110216431A (en) * | 2019-06-25 | 2019-09-10 | 哈尔滨汽轮机厂有限责任公司 | A kind of processing method of 1000MW Steam Turbine jiggering gear hole |
| CN111085822A (en) * | 2019-10-31 | 2020-05-01 | 车金喜汽配股份有限公司 | Method for machining inner cavity of inner ball cage body |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104723019A (en) * | 2013-12-24 | 2015-06-24 | 上海国上机电科技有限公司 | Hole machining method for motor cover |
| CN103817487A (en) * | 2014-03-11 | 2014-05-28 | 宁波固远管件有限公司 | Cyclone chipping cutting processing technique |
| CN104786025A (en) * | 2015-04-16 | 2015-07-22 | 派罗特克（深圳）高温材料有限公司 | Method for machining thermoelectric couple protective sleeve by drilling cast iron bar |
| CN104786025B (en) * | 2015-04-16 | 2017-07-28 | 派罗特克（深圳）高温材料有限公司 | A kind of method of use cast iron profile material Drilling operation protective cover for thermocouple |
| CN105750844A (en) * | 2016-04-29 | 2016-07-13 | 沈阳透平机械股份有限公司 | Processing method for hollow spindle of compressor |
| CN108637595A (en) * | 2018-04-03 | 2018-10-12 | 宁夏西北骏马电机制造股份有限公司 | Coalcutter hollow shaft processing method and grinding tip for being ground hollow shaft |
| CN108788825A (en) * | 2018-07-04 | 2018-11-13 | 重庆智博粉末冶金有限公司 | Special fixture and deep hole processing method for deep hole processing |
| CN110216431A (en) * | 2019-06-25 | 2019-09-10 | 哈尔滨汽轮机厂有限责任公司 | A kind of processing method of 1000MW Steam Turbine jiggering gear hole |
| CN111085822A (en) * | 2019-10-31 | 2020-05-01 | 车金喜汽配股份有限公司 | Method for machining inner cavity of inner ball cage body |
| CN111085822B (en) * | 2019-10-31 | 2021-05-18 | 车金喜汽配股份有限公司 | Method for machining inner cavity of inner ball cage body |
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Application publication date: 20131211 |
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