CN102430764A - 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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- CN102430764A CN102430764A CN2011103241171A CN201110324117A CN102430764A CN 102430764 A CN102430764 A CN 102430764A CN 2011103241171 A CN2011103241171 A CN 2011103241171A CN 201110324117 A CN201110324117 A CN 201110324117A CN 102430764 A CN102430764 A CN 102430764A
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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 large diameter thin wall circular arc plate parts.
Background technology
In the machine components of industries such as space flight, aviation, weapons, boats and ships, there is a large amount of large diameter thin wall circular arc plate parts.The characteristics of this type 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 type 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 a high material consumption, the processing amount of going is big, production cost is high; Production efficiency is low, and production unit generally is difficult to buy enough large diameter bar, can't process.Another kind method is to adopt the sheet material digital control processing inside and outside circle cambered surface of suitable thickness; The shortcoming of this method be the cutter loss big, take the Digit Control Machine Tool time 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 objective of the invention is to overcome the deficiency of above-mentioned prior art, the method and the auxiliary mould of the processing large diameter thin wall circular arc plate parts that a kind of production cost is low, production efficiency is high is provided.
For achieving the above object, the technical scheme that the present invention adopts is:
A kind of auxiliary mould of processing large diameter thin wall circular arc plate parts comprises a pair of multi-sheets being spliced into columned annulus.
Offer somely along the equally distributed square groove of circumference on the bottom surface of said annulus, the bottom of square groove is drilled with screwed hole.
Adopt the method for the auxiliary mould processing large diameter thin wall circular arc plate parts of above-mentioned processing large diameter thin wall circular arc plate parts, may further comprise the steps:
With sheet material is blank; Stay the technology chuck at the sheet material two ends, the technology chuck at sheet material two ends is fastened to respectively in the annulus of both sides, multi-sheets is spliced into a columned assembly; Through the inside and outside circle of engine lathe car, car falls the technology chuck then with columned assembly.
Offer somely along the equally distributed square groove of circumference on the bottom surface of said annulus, the technology chuck is fixed in square groove bottom through screw.
Beneficial effect of the present invention is embodied in: the method for processing large diameter thin wall circular arc plate parts according to the invention through the processing auxiliary mould cylindrical assembly that forms a whole, is carried out sheet material the inside and outside round processing of simple car through engine lathe and can be obtained polylith large diameter thin wall circular arc plate parts simultaneously, and is 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; The present invention has that spillage of material is little, and the amount of going is few, advantage of high production efficiency; Carrying out method for processing with the employing digital control processing compares; The present invention utilizes engine lathe to machine, and the loss of cutter is far smaller than the processing of milling that digital control processing adopts, and 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 sketch map.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified:
Referring to Fig. 1 and Fig. 2; A kind of auxiliary mould of processing large diameter thin wall circular arc plate parts; Comprise a pair of multi-sheets being spliced into columned annulus 1 that offer somely along the equally distributed square groove 2 of circumference on the bottom surface of said 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 circular arc plate parts of above-mentioned processing large diameter thin wall circular arc plate parts; May further comprise the steps: be blank with sheet material, stay the technology chuck, the technology chuck at sheet material two ends is fastened to respectively in the both sides annulus 1 at the sheet material two ends; Offer some on the bottom surface of said annulus 1 along the equally distributed square groove 2 of circumference; The technology chuck is fixed in square groove 2 bottoms through screw, and multi-sheets is spliced into a columned assembly, and columned assembly is passed through the inside and outside circle of engine lathe car; Car falls the technology chuck then, has just accomplished the processing of large diameter thin wall circular arc plate parts.
Embodiment
Certain fagging is a kind of large diameter thin wall circular arc plate parts, 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 to spend.
At first design the machining auxiliary mould, process a pair of annulus 1, be uniformly distributed with 12 square grooves 2, square groove 2 bottom auger shell pits 3 around annulus 1 bottom surface.Turned blank is a sheet material, and technology chuck 30mm is stayed at two ends, and boring.Add man-hour, the technology chuck of sheet material is fastened in the square groove 2 with screw, 12 board material splices become a cylindrical assembly of integral body, and at the engine lathe inside and outside circle of getting on the bus, car falls the technology chuck again, has just accomplished the processing of arc plate.
Process principle of the present invention is following: 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 bigger, 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, so 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 quantity N≤4 of the maximum machinable arc plates of time processing behind the auxiliary mould 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 this method to compare, saved a large sum of production cost with using numerical control machining center.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 above-mentioned machining auxiliary mould processing, use to 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 this 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 circular arc plate parts according to the invention is simple in structure, cost is low; Can realize the processing of large diameter thin wall circular arc plate parts; Improved production efficient and quality, utilize this processing auxiliary mould processing large diameter thin wall circular arc plate parts simple and reliable, reduced production cost, be fit to very much the circular arc plate parts; Especially the processing of large scale circular arc plate parts can be applied to the processing of such part.
Claims (3)
1. auxiliary mould of processing large diameter thin wall circular arc plate parts; It is characterized in that: comprise a pair of multi-sheets being spliced into columned annulus (1); Offer somely along the equally distributed square groove of circumference (2) on the bottom surface of said annulus (1), the bottom of square groove (2) is drilled with screwed hole (3).
2. the method for the auxiliary mould processing large diameter thin wall circular arc plate parts of large diameter thin wall circular arc plate parts is processed in an employing according to claim 1; It is characterized in that: may further comprise the steps: be blank with sheet material; Stay the technology chuck at the sheet material two ends, the technology chuck at sheet material two ends is fastened to respectively in the both sides annulus (1), multi-sheets is spliced into a columned assembly; Through the inside and outside circle of engine lathe car, car falls the technology chuck then with columned assembly.
3. according to the said a kind of method of processing large diameter thin wall circular arc plate parts of claim 2, it is characterized in that: offer somely along the equally distributed square groove of circumference (2) on the bottom surface of said annulus (1), the technology chuck is fixed in square groove (2) bottom through 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 |
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| CN102430764A true CN102430764A (en) | 2012-05-02 |
| CN102430764B CN102430764B (en) | 2013-04-10 |
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| 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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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143964A (en) * | 2013-03-21 | 2013-06-12 | 宁波市姚江机床制造有限公司 | Manufacturing method of rolling die |
| 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 |
| CN104526381A (en) * | 2014-12-08 | 2015-04-22 | 余姚市金星网板厂 | Arc-shaped plate clamping clamp |
| CN104526380A (en) * | 2014-12-08 | 2015-04-22 | 余姚市金星网板厂 | Novel clamp capable of clamping arc-shaped plate |
| CN104625095A (en) * | 2014-12-08 | 2015-05-20 | 安徽人防设备有限公司 | Cambered surface workpiece machining lathe |
| CN106378631A (en) * | 2016-10-12 | 2017-02-08 | 广西南南铝加工有限公司 | Device for processing curved surface by using band saw and processing method |
| 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 |
| CN109262297A (en) * | 2018-09-29 | 2019-01-25 | 武汉船用机械有限责任公司 | A kind of processing tool of strip part inner 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 |
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| JPS5715647A (en) * | 1980-06-24 | 1982-01-27 | Fujitsu Ltd | Lathing of hollow thin wall cylinder |
| 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 |
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2011
- 2011-10-21 CN CN 201110324117 patent/CN102430764B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS5715647A (en) * | 1980-06-24 | 1982-01-27 | Fujitsu Ltd | Lathing of hollow thin wall cylinder |
| 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 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103143964A (en) * | 2013-03-21 | 2013-06-12 | 宁波市姚江机床制造有限公司 | Manufacturing method of rolling die |
| 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 |
| CN104526381A (en) * | 2014-12-08 | 2015-04-22 | 余姚市金星网板厂 | Arc-shaped plate clamping clamp |
| CN104625095A (en) * | 2014-12-08 | 2015-05-20 | 安徽人防设备有限公司 | Cambered surface workpiece machining lathe |
| CN104526380A (en) * | 2014-12-08 | 2015-04-22 | 余姚市金星网板厂 | Novel clamp capable of clamping arc-shaped plate |
| CN104526380B (en) * | 2014-12-08 | 2017-03-22 | 余姚市金星网板厂 | Clamp capable of clamping arc-shaped plate |
| CN106378631A (en) * | 2016-10-12 | 2017-02-08 | 广西南南铝加工有限公司 | Device for processing curved surface by using band saw and processing method |
| CN109262297A (en) * | 2018-09-29 | 2019-01-25 | 武汉船用机械有限责任公司 | A kind of processing tool of strip part inner arc surface |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN102430764B (en) | 2013-04-10 |
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