CN102430764B - Method and auxiliary fixture for processing large-diameter thin-wall arc plate part - Google Patents
Method and auxiliary fixture for processing large-diameter thin-wall arc plate part Download PDFInfo
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- CN102430764B CN102430764B CN 201110324117 CN201110324117A CN102430764B CN 102430764 B CN102430764 B CN 102430764B CN 201110324117 CN201110324117 CN 201110324117 CN 201110324117 A CN201110324117 A CN 201110324117A CN 102430764 B CN102430764 B CN 102430764B
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Abstract
The invention provides a method and an auxiliary fixture for processing a large-diameter thin-wall arc plate part. The auxiliary fixture comprises a pair of rings for splicing multiple plates into a cylinder. The method comprises the following steps of: on the basis of utilizing the plate as a blank, sequentially fastening technical chucks at the two ends of the plate into square grooves of the rings on the two sides through bolts respectively; splicing multiple plates into an entirely-cylindrical component; and turning the inner ring and outer ring of the cylindrical component by virtue of a common lathe. In the invention, the plates form an entirely-cylindrical component through the auxiliary fixture, and multiple large-diameter thin-wall arc plate parts can be obtained at the same time through simply turning the inner and outer rings by virtue of the common lathe; dependence on a tool and the lathe is low; the method has the advantages of low material loss, small removal quantity and high production efficiency; the loss of the tool is far less than that of the milling adopted by the numerically-controlled processing; the processing cost is low; and the processing time is shortened.
Description
Technical field
The invention belongs to mechanical field, be specifically related to a kind of method and auxiliary mould of processing the large diameter thin wall arc plate part.
Background technology
In the machine components of the industries such as space flight, aviation, weapons, boats and ships, there is a large amount of large diameter thin wall arc plate parts.The characteristics of this class part are: have large diameter inside and outside circular arc, diameter is generally more than 200mm; Relative diameter, the part wall is very thin; The angle of circular arc is generally less than 90 degree; Material is generally structural steel or steel alloy, has higher hardness and requirement of strength.
At present, two kinds of methods are generally adopted in the processing of this class part.A kind of is to process the inside and outside circle cambered surface after adopting the centre-drilling hole of major diameter bar, the shortcoming of this method is high material consumption, the processing amount of going is large, production cost is high, production efficiency is low, and production unit generally is difficult to buy enough large diameter bars, can't process.Another kind method is to adopt the plate digital control processing inside and outside circle cambered surface of suitable thickness, the shortcoming of this method be the cutter loss large, take that the Digit Control Machine Tool time is long, production cost is high, production efficiency is low, and the production unit that has do not have corresponding numerical control machining center, can't process.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, method and the auxiliary mould of the processing large diameter thin wall arc plate part that a kind of production cost is low, production efficiency is high is provided.
For achieving the above object, the technical solution used in the present invention is:
A kind of auxiliary mould of processing the large diameter thin wall arc plate part comprises a pair of multi-sheets being spliced into columned annulus.
Offer some square grooves that distribute along even circumferential on the bottom surface of described annulus, the bottom of square groove is drilled with screwed hole.
Adopt the method for the auxiliary mould processing large diameter thin wall arc plate part of above-mentioned processing large diameter thin wall arc plate part, may further comprise the steps:
Take sheet material as blank, stay the technique chuck at the sheet material two ends, the technique chuck at sheet material two ends is fastened to respectively in the annulus of both sides, multi-sheets is spliced into a columned assembly, by the inside and outside circle of engine lathe car, then car falls the technique chuck with columned assembly.
Offer some square grooves that distribute along even circumferential on the bottom surface of described annulus, the technique chuck is fixed in the square groove bottom by screw.
Beneficial effect of the present invention is embodied in: the method for processing large diameter thin wall arc plate part of the present invention with sheet material by the processing auxiliary mould cylindrical assembly that forms a whole, undertaken in the simple car by engine lathe, Excircle machining can obtain polylith large diameter thin wall arc plate part simultaneously, little to cutter and lathe dependency degree, compare with the method for processing inside and outside circle cambered surface after the centre-drilling hole of employing major diameter bar, it is little that the present invention has spillage of material, the amount of going is few, the advantage that production efficiency is high, compare with the method that adopts digital control processing to process, the present invention utilizes engine lathe to machine, the loss of cutter is far smaller than the processing of milling that digital control processing adopts, not only processing cost is low, and having shortened process time, working (machining) efficiency is high.
Description of drawings
Fig. 1 is the structural representation of processing auxiliary mould.
Fig. 2 is the structural representation of cylindrical modules.
Fig. 3 is the process principle schematic diagram.
The specific embodiment
The present invention will be further described below in conjunction with drawings and Examples:
Referring to Fig. 1 and Fig. 2, a kind of auxiliary mould of processing the large diameter thin wall arc plate part, comprise a pair of multi-sheets being spliced into columned annulus 1, offer some square grooves 2 that distribute along even circumferential on the bottom surface of described annulus 1, the bottom of square groove 2 is drilled with screwed hole 3.
Adopt the method for the auxiliary mould processing large diameter thin wall arc plate part of above-mentioned processing large diameter thin wall arc plate part, may further comprise the steps: take sheet material as blank, stay the technique chuck at the sheet material two ends, the technique chuck at sheet material two ends is fastened to respectively in the both sides annulus 1, offer some square grooves 2 that distribute along even circumferential on the bottom surface of described annulus 1, the technique chuck is fixed in square groove 2 bottoms by screw, multi-sheets is spliced into a columned assembly, columned assembly is passed through in the engine lathe car, cylindrical, then car falls the technique chuck, has just finished the processing of large diameter thin wall arc plate part.
Embodiment
Certain fagging is a kind of large diameter thin wall arc plate part, and material is No. 45 steel, and the hardness requirement modifier treatment is to HRC37-41, and inside and outside circular arc radius R 1, R2 are respectively 120mm, 126mm, and wall thickness is 6mm, and the long L of plate is 120mm, and the circular arc angle is 24 degree.
At first design the machining auxiliary mould, process a pair of annulus 1, uniform 12 square grooves 2 around annulus 1 bottom surface, square groove 2 bottom auger shell pits 3.Turned blank is sheet material, and technique chuck 30mm is stayed at two ends, and boring.Add man-hour, with the technique chuck of sheet material with screw fastening in square groove 2,12 board material splices become a cylindrical assembly of integral body, at the engine lathe inside and outside circle of getting on the bus, car falls the technique chuck again, has just finished the processing of arc plate.
Process principle of the present invention is as follows: referring to Fig. 3, part to be processed has large diameter inside and outside circular arc, and inner and outer diameter R, r are generally more than 100mm; Relative diameter, part wall (R-r) is very thin; The angle a of circular arc is generally less than 90 degree; The arc plate width W is larger, generally greater than 100mm, can not use the line cutting processing, because chip removal difficulty during the line cutting processing, adds and is easy to fracture of wire man-hour.Material is generally structural steel or steel alloy, has higher hardness and requirement of strength, is difficult to mill processing, and tool wear is serious.
Requirement to the blank plate:
Blank plate length 〉=2Rsin (a/2);
Blank slab height 〉=R-rcos (a/2);
Blank plate width 〉=arc plate width
The quantity N of the maximum machinable arc plates of time processing behind the employing auxiliary mould:
N≤360/a (N round numbers)
Arc angle a=24 degree in the example, therefore the quantity of the maximum machinable arc plates of time processing is behind the employing auxiliary mould: N≤360/24=15, the groove quantity N round numbers 12 of opening on the annulus during design is proper.
If arc angle a, adopts the quantity N of the maximum machinable arc plates of time processing behind the auxiliary mould≤4 greater than 90 degree, just do not have the low-angle arc plate to calculate on efficient, but this method also can be processed.
Adopt the method to compare with using numerical control machining center, saved a large sum of production cost.Calculate to produce 12 faggings, numerical control machining center consumes coating milling cutter 9 (being worth 280 yuan), rose cutter 32 is (being worth 260 yuan), take W518 lathe (200 yuan of hourly rates) nearly 100 man-hours, and adopt the processing of above-mentioned machining auxiliary mould, use can reach requirement to reinforcement lathe tool (being worth 100 yuan) engine lathe C6140 (100 yuan of hourly rates) 8 man-hours and 2.
The method of processing inside and outside circle cambered surface is compared after adopting the method and adopting the centre-drilling hole of major diameter bar, and saving material reaches more than 80%, enhances productivity 10 times.
The processing auxiliary mould of large diameter thin wall arc plate part of the present invention is simple in structure, cost is low, can realize the processing of large diameter thin wall arc plate part, production efficient and quality have been improved, utilize this processing auxiliary mould processing large diameter thin wall arc plate part simple and reliable, reduced production cost, be fit to very much arc plate part, especially the processing of large scale arc plate part can be applied to the processing of such part.
Claims (2)
1. method that adopts auxiliary mould processing large diameter thin wall arc plate part, described auxiliary mould comprises and a pair of multi-sheets is spliced into columned annulus (1), offer some square grooves (2) that distribute along even circumferential on the bottom surface of described annulus (1), the bottom of square groove (2) is drilled with screwed hole (3), it is characterized in that: may further comprise the steps: take sheet material as blank, stay the technique chuck at the sheet material two ends, the technique chuck at sheet material two ends is fastened to respectively in the described annulus in both sides (1), multi-sheets is spliced into a columned assembly, columned assembly is passed through in the engine lathe car, cylindrical, then car falls the technique chuck.
2. described a kind of method that adopts auxiliary mould processing large diameter thin wall arc plate part according to claim 1, it is characterized in that: the technique chuck is fixed in square groove (2) bottom by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110324117 CN102430764B (en) | 2011-10-21 | 2011-10-21 | Method and auxiliary fixture for processing large-diameter thin-wall arc plate part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110324117 CN102430764B (en) | 2011-10-21 | 2011-10-21 | Method and auxiliary fixture for processing large-diameter thin-wall arc plate part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102430764A CN102430764A (en) | 2012-05-02 |
| CN102430764B true CN102430764B (en) | 2013-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110324117 Expired - Fee Related CN102430764B (en) | 2011-10-21 | 2011-10-21 | Method and auxiliary fixture for processing large-diameter thin-wall arc plate part |
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Families Citing this family (11)
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| CN103143964B (en) * | 2013-03-21 | 2015-09-09 | 宁波市姚江机床制造有限公司 | Roll die manufacture method |
| CN103302519A (en) * | 2013-06-28 | 2013-09-18 | 成都欣领航科技有限公司 | Clamping mechanism for lathing |
| CN104259539A (en) * | 2014-09-22 | 2015-01-07 | 东方电气集团东方汽轮机有限公司 | Method for processing large-diameter segmental-arc feature by adopting small working table |
| CN104526381B (en) * | 2014-12-08 | 2016-09-07 | 余姚市金星网板厂 | A kind of fixture clamping arc |
| CN104625095A (en) * | 2014-12-08 | 2015-05-20 | 安徽人防设备有限公司 | Cambered surface workpiece machining lathe |
| CN104526380B (en) * | 2014-12-08 | 2017-03-22 | 余姚市金星网板厂 | Clamp capable of clamping arc-shaped plate |
| CN106378631B (en) * | 2016-10-12 | 2018-08-31 | 广西南南铝加工有限公司 | A kind of device and processing method of band saw processing curve |
| CN109262297B (en) * | 2018-09-29 | 2019-12-31 | 武汉船用机械有限责任公司 | Machining tool for arc surfaces in long-strip parts |
| CN109176097A (en) * | 2018-10-15 | 2019-01-11 | 武汉船用机械有限责任公司 | A kind of processing tool of thin and long units exterior arc surface |
| CN112658709A (en) * | 2020-12-09 | 2021-04-16 | 中国第一汽车股份有限公司 | Processing tool and processing method for circular arc structure of part |
| CN118478161A (en) * | 2024-05-31 | 2024-08-13 | 海宁市红狮电梯装饰有限公司 | Processing and positioning device for car bottom bracket |
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| CN2730545Y (en) * | 2004-10-28 | 2005-10-05 | 沈阳飞机工业（集团）有限公司 | Gas and liquid bag type clamp |
| CN201300227Y (en) * | 2008-10-23 | 2009-09-02 | 成都飞机工业（集团）有限责任公司 | Drilling tool for drilling axially and evenly distributed holes |
| CN201592354U (en) * | 2009-10-13 | 2010-09-29 | 中国西电电气股份有限公司 | Numerical control machining fixture of movable main contact thin-wall parts |
| CN101972943A (en) * | 2010-10-27 | 2011-02-16 | 北京遥测技术研究所 | Turning positioning fixture for thin-wall rotational parts and clamping method |
| CN201807984U (en) * | 2010-09-08 | 2011-04-27 | 安徽博微长安电子有限公司 | Automatic centering and clamping device |
| CN201863007U (en) * | 2010-10-25 | 2011-06-15 | 上海海事大学 | Internal processing mandrel for annular thin-wall parts |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5715647A (en) * | 1980-06-24 | 1982-01-27 | Fujitsu Ltd | Lathing of hollow thin wall cylinder |
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2011
- 2011-10-21 CN CN 201110324117 patent/CN102430764B/en not_active Expired - Fee Related
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|---|---|---|---|---|
| CN2730545Y (en) * | 2004-10-28 | 2005-10-05 | 沈阳飞机工业（集团）有限公司 | Gas and liquid bag type clamp |
| CN201300227Y (en) * | 2008-10-23 | 2009-09-02 | 成都飞机工业（集团）有限责任公司 | Drilling tool for drilling axially and evenly distributed holes |
| CN201592354U (en) * | 2009-10-13 | 2010-09-29 | 中国西电电气股份有限公司 | Numerical control machining fixture of movable main contact thin-wall parts |
| CN201807984U (en) * | 2010-09-08 | 2011-04-27 | 安徽博微长安电子有限公司 | Automatic centering and clamping device |
| CN201863007U (en) * | 2010-10-25 | 2011-06-15 | 上海海事大学 | Internal processing mandrel for annular thin-wall parts |
| CN101972943A (en) * | 2010-10-27 | 2011-02-16 | 北京遥测技术研究所 | Turning positioning fixture for thin-wall rotational parts and clamping method |
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| JP昭57-15647A 1982.01.27 |
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| CN102430764A (en) | 2012-05-02 |
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