CN1887459A - Variable wall thickness vane making process and its rolling formation apparatus - Google Patents
Variable wall thickness vane making process and its rolling formation apparatus Download PDFInfo
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- CN1887459A CN1887459A CN 200610012948 CN200610012948A CN1887459A CN 1887459 A CN1887459 A CN 1887459A CN 200610012948 CN200610012948 CN 200610012948 CN 200610012948 A CN200610012948 A CN 200610012948A CN 1887459 A CN1887459 A CN 1887459A
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Abstract
The present invention relates to variable wall thickness vane making process and its rolling formation apparatus, and features that the variable wall thickness vane is formed in one simple integral rolling process. The rolling formation apparatus includes two rollers, one right frame and one left frame, as well as a crank, a link rod, an upper mold plate, a die holder, a twisting seat and a pin shaft. The combined rolling formation apparatus has simple structure, stable operation and less motors and gear boxes; and the making process has low cost, high vane product precision, high material utilization rate and high production efficiency.
Description
Technical field
The invention belongs to stress metal and shape technology, be mainly concerned with variable wall thickness vane making process, and the rolling formation apparatus that on hydraulic press, uses.
Background technology
Blade is steam turbine, engine, spacecraft, reaches the common parts of various aircraft, because the purposes difference that blade uses, and its manufacture process requirement is different; Have and use hydraulic press and mould compacting to form, also have employing die hammer and forging die repeatedly die forging form; For becoming wall thickness Wedge blade part, adopts above-mentioned its to have the hydraulic press of use and mould compacting to form, reach employing die hammer and forging die repeatedly die forging to form two kinds of forming technology equipment needed therebies huge; Equipment is more, and input cost is bigger.At present, use seamless steel pipe to be raw material, cut into blank, mainly adopt the machine cut mode of shaping to make again this change wall thickness Wedge blade.This method of manufacturing technology, the cost of material height, processing throughput is low, and whole manufacturing cost height is uneconomical.As certain Wedge blade product, shape is comparatively complicated, in uneven thickness, curved surface curved (as Fig. 1).The position that curved surface is the thickest is that 8mm, the thinnest position are 1.2mm, and size, shape and surface accuracy requirement are very high, and difficulty of processing is big.Original production process is raw material with the seamless steel pipe, adopts machining, and the work in-process heart way of dividing equally obtains the blade product then.This technology utilization rate of raw materials is low, only has 7.3%; 1/class; Production efficiency is very low, and product quality also is difficult to be guaranteed.
Summary of the invention
The present invention seeks to overcome the deficiency that the above existing Wedge blade manufacturing technology exists, adopt the roll forming technology, and be provided at and use rolling formation apparatus on the hydraulic press, thereby save material, improve production efficiency and product quality reduces and makes and the equipment input cost.
The present invention with regard to realizing the technical scheme that above purpose adopts is:
A kind of variable wall thickness vane making process uses equal thickness sheet material to be blank, and blank heating is characterized in that to the deformation temperature (1000 ℃) of blank: vanes is crossed one roll stranding and is rolled the direct roll forming of operation; Wherein:
● control metal flow and change vane thickness by the type groove on the roll;
● by changing the speed difference of two rolls, the disposable stranding of roll rolls into the shape spoon of blade;
● by adjusting the centre-to-centre spacing of two rolls, the blade of rolling multiple different-thickness specification.
Above-described a kind of variable wall thickness vane making process, concrete technology is: blank → heating (1000 ℃) → roll is rubbed with the hands and is rolled → shot blasting on surface → sandbag grinding.
Above-described roll stranding is rolled operation and is finished by the rolling formation apparatus that is installed in hydraulic press, rolling formation apparatus is pumped by hydraulic machine piston and slide block, through crank, linkage transmission, and driving the positive and negative rotation of two rolls, the blank of blade is rubbed with the hands by roll at two roll shop buildings and is rolled into shape.
A kind of rolling formation apparatus of variable wall thickness vane comprises two rolls and left and right sides frame; Be characterized in: also comprise crank, connecting rod, cope match-plate pattern, die shoe, twisted seat, bearing pin; Twisted seat is contained in below the cope match-plate pattern, by bearing pin twisted seat is connected with crank with connecting rod, connecting rod, and crank is loaded on the roll two ends, and two rolls are contained on two frames, and two frames are fixed on the die shoe; The circumference of each roll is provided with the type groove identical with blade profile and curve form, and the type groove on two rolls has constituted closed die groove.
Described roll two ends symmetry is equipped with two cover crank and connecting rods, and the roll two ends are that symmetry is stressed.The roller head at roll two ends is triangular in shape, directly makes the triangle key, and crank is sleeved on the roller head; Roll is provided with three type grooves, by the conversion of roller head triangle key, transfers roll work type groove.The eccentric bushing that is used to regulate two roller gaps is housed between frame and the roll.
Wedge blade manufacture method of the present invention reaches on hydraulic press and uses rolling formation apparatus compared with prior art, has substantive technical characterstic with remarkable technique effect to be:
1) this equipment machining accuracy height, processing charges is low, man-hour is short, with short production cycle, productivity ratio is high, can satisfy batch production requirement;
2) stock utilization height, production cost is low;
3) use hydraulic press to provide power, under the prerequisite of no motor and gearbox, realized groove rolling as roller mill.
Description of drawings
Fig. 1 is a kind of typical blade part schematic diagram;
Fig. 2 is a Wedge blade manufacturing process flow schematic diagram;
Fig. 3 is a blade roll milling building mortion transmission mechanism schematic diagram;
Fig. 4 is a blade roll milling building mortion front view;
Fig. 5 is a blade roll milling building mortion side view;
Fig. 6 is the roll side view;
Fig. 7 is the type groove enlarged drawing on the roll.
Five, the specific embodiment
Describe (this enforcement is to further specify of the present invention, rather than any qualification that the present invention is made) below in conjunction with accompanying drawing with regard to the specific embodiment.
Shown in Figure 1, a kind of typical Wedge blade product, shape is comparatively complicated, and curved surface is curved.The position that curved surface is the thickest is that 8mm, the thinnest position are 1.2mm.The processing of leaves process is to adopt the rolling curved surface variable wall thickness vane of rolling formation apparatus on the 6300KN hydraulic press, steel plate with uniform thickness is a blank, by rolling formation apparatus blank is rolled into the plate wedge material, about blank heating to 1000～1100 ℃, through one rolling operation direct forming.Shown in Figure 2, be the concrete manufacturing process flow of Wedge blade, its operation has:
Blank → heating (1000 ℃) → roll is rubbed with the hands and is rolled → shot blasting on surface → sandbag grinding.Obtain finished product through ground finished.Wherein:
● control metal flow and change vane thickness by the type groove on the roll;
● by changing the speed difference of two rolls, the disposable stranding of roll rolls into the shape spoon of blade;
● by adjusting the centre-to-centre spacing of two rolls, the blade of rolling multiple different-thickness specification.
Fig. 3 is a blade roll milling building mortion transmission mechanism schematic diagram; Above-described roll stranding is rolled operation and is finished by the rolling formation apparatus that is installed in hydraulic press, rolling formation apparatus is pumped by hydraulic press 1 piston and slide block 2, through crank 3, connecting rod 4 mechanism driving, and driving the positive and negative rotation of two rolls, the blank of blade is rubbed with the hands by roll at two roll shop buildings and is rolled into shape.
Fig. 4 and shown in Figure 5, rolling formation apparatus.It comprises cope match-plate pattern 5, die shoe 6, twisted seat 7, connecting rod 4, bearing pin 8, two rolls 9 and frames 10; Twisted seat is linked together by bolt below cope match-plate pattern, and with twisted seat and connecting rod, connecting rod is connected with crank by bearing pin, and crank is loaded on the roll two ends, and two rolls are contained on two frames, and two frames are by being bolted on the die shoe; The circumference of each roll is provided with the type groove identical with blade profile and curve form, and the type groove on two rolls has constituted closed die groove.Rolling formation apparatus is in assembling with when not working, and is provided with two between cope match-plate pattern and the frame and is connected bracing frame, and bracing frame is made up of pillar 11 and bearing 12.During use with bolt respectively on cope match-plate pattern and frame.
Fig. 6 and shown in Figure 7, roll type groove.Type groove 901 is uniform along the roll circumference direction, and the lateral dimension of type groove equals the length of the body of roll.
Roll two ends symmetry is equipped with two cover crank and connecting rods, and the roll two ends are that symmetry is stressed.The roller head at roll two ends is triangular in shape, directly makes triangle key 902, and crank is enclosed within on the triangle key roller head, and is limited by bolt and end cap.
Roll is provided with three type grooves 901, by the conversion of roller head triangle key 902, transfers roll work type groove.By the triangular key application of force, increase torsional strength, three passes also being convenient on the roll simultaneously arbitrarily exchange, and prolong roll campaign.
By changing crank and connecting rod geometrical length, two rolls form speed difference, can change the metal flow speed of blank surfaces externally and internally, realize rubbing with the hands rolling into shape, produce curved section bar.
By the eccentric bushing of adorning between frame and the roll 13.Regulate two roller gaps, adjust the centre-to-centre spacing of roll.
The cope match-plate pattern of rolling formation apparatus links to each other with the top shoe of hydraulic press by briquetting, transmits power drive by the top shoe of hydraulic press; Two frames are fixed on the die shoe, die shoe by pressing plate fixer press on workbench.
Rolling formation apparatus of the present invention is motive power with the hydraulic press, does pumping by slider of hydraulic press drive cope match-plate pattern, through the transmission of crank linkage, is converted into the positive and negative rotation of roll.In the type groove between two rolls of blank, two rolls rotate on the contrary, and roll directly contacts with rolled piece, force metal to produce plastic deformation, and making the disposable extrusion molding of blank is blade.The rotating speed of two rolls is by the downstream rate decision of hydraulic press, and the speed of regulator solution press can be regulated the mill speed parameter of roll.
Rolling formation apparatus of the present invention obviously is different from traditional rolling mill and forging roll, and it is simple in structure, does not need power sources such as motor, only be mounted on the general hydraulic press, significantly reduced the equipment input, shorten the production cycle, production efficiency and stock utilization have been improved, the rate of reducing the number of rejects and seconds.
Claims (9)
1, a kind of variable wall thickness vane making process uses equal thickness sheet material to be blank, and blank heating is characterized in that to the deformation temperature of blank: vanes is crossed one roll stranding and is rolled the direct roll forming of operation; Wherein:
● control metal flow and change vane thickness by the type groove on the roll;
● by changing the speed difference of two rolls, the disposable stranding of roll rolls into the shape spoon of blade;
2, a kind of variable wall thickness vane making process according to claim 1 is characterized in that: by adjusting the centre-to-centre spacing of two rolls, the blade of rolling various different-thickness specifications.
3, a kind of variable wall thickness vane making process according to claim 1 is characterized in that: concrete technology is: blank → heating → roll is rubbed with the hands and is rolled → shot blasting on surface → sandbag grinding.
4, a kind of variable wall thickness vane making process roll forming method according to claim 1, it is characterized in that: described roll stranding is rolled operation and is finished by the rolling formation apparatus that is installed in hydraulic press (1), rolling formation apparatus is pumped by hydraulic machine piston and slide block (2), through crank (3), connecting rod (4) mechanism driving, and driving the positive and negative rotation of two rolls, the blank of blade is rubbed with the hands by roll at two roll shop buildings and is rolled into shape.
5, a kind of rolling formation apparatus of variable wall thickness vane comprises two rolls (9) and left and right sides frame (10); It is characterized in that: also comprise crank (3), connecting rod (4), cope match-plate pattern (5), die shoe (6), twisted seat (7), bearing pin (8); Twisted seat is contained in below the cope match-plate pattern, by bearing pin twisted seat is connected with crank with connecting rod, connecting rod, and crank is loaded on the roll two ends, and two rolls are contained on two frames, and two frames are fixed on the die shoe; The circumference of each roll is provided with the type groove identical with blade profile and curve form, and the type groove on two rolls has constituted closed die groove.
6, the rolling formation apparatus of a kind of variable wall thickness vane according to claim 5 is characterized in that: described roll two ends symmetry is equipped with two cover crank and connecting rods, and the roll two ends are that symmetry is stressed.
7, the rolling formation apparatus of a kind of variable wall thickness vane according to claim 5 is characterized in that: the roller head at described roll two ends is triangular in shape, directly makes triangle key (902), and crank is sleeved on the roller head.
8, the rolling formation apparatus of a kind of variable wall thickness vane according to claim 5 is characterized in that: described roll is provided with three type grooves (901).
9, the rolling formation apparatus of a kind of variable wall thickness vane according to claim 5 is characterized in that: the eccentric bushing (13) that is used to regulate two roller gaps is housed between described frame and the roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200610012948 CN1887459A (en) | 2006-07-14 | 2006-07-14 | Variable wall thickness vane making process and its rolling formation apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610012948 CN1887459A (en) | 2006-07-14 | 2006-07-14 | Variable wall thickness vane making process and its rolling formation apparatus |
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| CN1887459A true CN1887459A (en) | 2007-01-03 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101417311B (en) * | 2007-10-26 | 2010-09-15 | 沈阳黎明航空发动机(集团)有限责任公司 | Rolling-mill preloading interference acute blade rolling method and special device thereof |
| CN101698274B (en) * | 2009-10-29 | 2011-04-27 | 西安西航集团航空航天地面设备有限公司 | Method for manufacturing kneading roller blades of aerospace fuel mixers |
| CN101749051B (en) * | 2008-12-10 | 2012-09-12 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for designing blank material for use in rolling of blade without tenon at two ends |
| CN103192266A (en) * | 2013-04-03 | 2013-07-10 | 哈尔滨理工大学 | Extruding and rolling composite forming device and method of integral panel skin with ribs |
| CN104408236A (en) * | 2014-11-06 | 2015-03-11 | 西北工业大学 | Method for establishing rolling blade die cavity |
| CN104707885A (en) * | 2013-12-17 | 2015-06-17 | 北京有色金属研究总院 | Method for manufacturing equal curvature radius reel type spring |
-
2006
- 2006-07-14 CN CN 200610012948 patent/CN1887459A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101417311B (en) * | 2007-10-26 | 2010-09-15 | 沈阳黎明航空发动机(集团)有限责任公司 | Rolling-mill preloading interference acute blade rolling method and special device thereof |
| CN101749051B (en) * | 2008-12-10 | 2012-09-12 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for designing blank material for use in rolling of blade without tenon at two ends |
| CN101698274B (en) * | 2009-10-29 | 2011-04-27 | 西安西航集团航空航天地面设备有限公司 | Method for manufacturing kneading roller blades of aerospace fuel mixers |
| CN103192266A (en) * | 2013-04-03 | 2013-07-10 | 哈尔滨理工大学 | Extruding and rolling composite forming device and method of integral panel skin with ribs |
| CN103192266B (en) * | 2013-04-03 | 2016-01-13 | 哈尔滨理工大学 | Band muscle integral panel squeezes compound molding device and method |
| CN104707885A (en) * | 2013-12-17 | 2015-06-17 | 北京有色金属研究总院 | Method for manufacturing equal curvature radius reel type spring |
| CN104707885B (en) * | 2013-12-17 | 2017-01-25 | 北京有色金属研究总院 | Method for manufacturing equal curvature radius reel type spring |
| CN104408236A (en) * | 2014-11-06 | 2015-03-11 | 西北工业大学 | Method for establishing rolling blade die cavity |
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