The 5 axes of square steel lamina are machined

0"> lamina basically can divide into 3 much: Body of Xie Gen, leaf and Xie Guan. Normal > is odd T double perhaps T Xie Gen, have the foliaceous root chamfer of two above at least, and into, plane of side giving steam and inside carry radial plane on the back; Foliaceous body is by a certain number of archives molded lines place is comprised, cent is become inside arc, back arc and the edge that take steam, edge giving steam 4 parts; Uppermost part is Xie Guan, like be the same as Xie Gen, also should machine a two flank and inside, carry radial face on the back; And model face and the area that coronal of foliaceous root leaf intersects transfer with round horn, those who say receive to turn. Normal > of a lamina technology staff, want of the consideration is technology program to make above all, according to the structural characteristic of the product and accuracy class and technical requirement, decide the stablest outfit places means and the most reasonable process instrumentation, use a part of a historical period like the high tension that combines circular airplane unit, the demand is top should be two lateral dimension and inside the pitch between back radial face, and Xiegen is spent with the position between Xie Guanzhi. The means that hold clip uses the basiccest one clip, but to assure the consistency with fiducial craft, the craft protruding stage that will locate and machining center of vertical of central aperture preexistence are machined last time come out, locate well in order to machine again fiducial the treatment that has whole blade. To assure the precision of two flank and pitch, these place are to use same come to milling cutter of essence of life undertake machining, and use online metrical way, machine the two side that give Xie Gen or Xie Guan first, online measure, adjust a knife to grow do allow two side, answer in order to adjust good Dao Changlai treatment relatively again of place inside carry radial face on the back, in order to assure the requirement of pitch. The arrangement of whole process is as follows: Normal > ① is on machine tool of 5 axes vertical, hold clip, the outfit that machines a Fang Gang first places craft protruding stand, reoccupy center broach machines the central opening that two upright fixed position use, assured the consistency with all fiducial craft so adequately; Normal > ② uses craft protruding stage and central opening fixed position, the means that with one aspect of the matter top of the one aspect of the matter that press clip tightens is on 5 axes machine tool place into luggage; Normal > ③ installs clip to originally, above all the surplus that bedding face of purify of integral open up wasteland accumulates; Normal > ④ rough machining gives tailstock tip to carry and inside carry radial face on the back, use milling cutter of essence of life next a bit the place of finish machining of to the limit of one's capacity two flank, undertake online measure, undertake comparative with the nominal dimension after to the limit of one's capacity, adjust a knife to grow accordingly, undertake machining again, till do,allow two side; Again good with be being adjusted finally knife is long, mill of essence of life gives tailstock side inside carry radial face on the back; Normal > ⑤ repeats the measure above and online measure the method that adjusts a knife to grow, do standard drive to carry the two flank of clamping apparatus a side, with this place inside carry radial face on the back; Normal > ⑥ .

Next thick mill face transfers with two place of round horn turn receive, bosseyed stay 0.

Surplus of 5 ～ 1mm; Normal > ⑦ divides mill of thick, essence to machine a Xie Gen again groove and packing and pour horn and craft chamfer individually; Normal > ⑧ circumgyrate machines mill of essence of life face, and two place turn receive; If surplus is larger, also can impose one condition semifinishing machining; Normal > ⑨ final mill gives Xie Ding and foliaceous root underside, get the semicircle chamfer of foliaceous bedrock face with keyway milling cutter, end the treatment of all place. Normal > bedding face accumulates goes two flank and radial face mix surplus, thick mill thick mill face, those who use is same the knife of razor blade of thick mill round horn φ 40mmR6, bit is the round razor blade of φ 12mm, with low rotate speed the method of big feed undertakes machining. Mill of essence of life the bit knife that the milling cutter of essence of life of two flank and radial face is φ 63mm, those who use is R0.

The square shoulder razor blade of 5. The milling cutter of essence of life of mill of essence of life face is the bit knife of φ 20mmR4, with φ 8mm round razor blade. Turn the knife of taper ball head that those who receive place to use is 4 ° . Wait for place as to the root chamfer of the others, those who use is integral hard alloy establishs milling cutter, the chamfer with different basis is wide, choose different diameter and R actor, and different treatment parameter. Normal > is thick finish machining, all place come out in the treatment on 5 axes equipment, put craft protruding station in foliaceous coronal a side, so when holding clip, xie Guan is in impaction in clamping apparatus and foliaceous root put tailstock tip to be in, face of radial of the Xiegennei that such treatment come out, back appeared many Zhen Wen, no matter how adjust treatment parameter result to be paid no attention to,think, and blade grows Zhen Wen more more serious; Change craft plan craft protruding stage to be put in later Xie Gen is in impaction and top of foliaceous coronal a side is tightened, solved the problem of radial face Zhen Wen. Another difficult problem that puzzles us is the treatment of chamfer of semicircle of foliaceous bedrock face, because it and radial face are not perpendicular, guarantee against the requirement of public errand of position of its left and right sides, wasted many time and preform for this, communicate with technologist finally, be forced to put semicircle chamfer 3 axes equipment to do. Normal > this shows, the fluctuant meeting of technology program produces ultimate effect to treatment. Normal > are machined craft and tool, between the program body comes out machine train of thought now, but sound technology program still has crucial effect, itself is mixed easily hard with respect to what decided a product is machined the stand or fall of quality, technologist must above all from macroscopical on hold whole product the treatment of every place, locate how install clip ability to get first-rate result, design exquisite and reasonable fixture next, ability of whole treatment process is smooth, product quality ability is stable, numerical control process designing just undertakes developing inside the frame in the technology program that already defined. Normal TEXT-INDENT of lamina of 0"> Fang Gang: 21pt; Mso-char-indent-count: 2.

0"> precision demand is high: If combine a loop,the high pressure of 168 aircrew uses a part of a historical period, requirement two lateral public errand 0 ～ - 0.

03mm, pitch public errand + 0.

04 ～ - 0.

02mm. The first of all is inside the line of the products that this machines in limited company of blade of the turbine that do not have stannum. Normal > treatment place is much and the form is diversiform: Basically all the place that can become treatment asks in 5 axes equipment is done last time, and different blade figure each different, make treatment type complex and changeful, this also is the strong point that 5 axes machine. Normal > thick mill holds is large, the time that the half influences is used in go on surplus, how to shorten the time of rough machining, it is the key that improves treatment efficiency. Normal > lamina breed is small. Normal > makes the principle Normal > technology program make should act on the principle that goes after price of the biggest sex to compare, a good technology program should be to use the handiest process instrumentation, highest treatment efficiency, lowermost finished cost, will get the stablest the most reliable treatment quality. What technologist goes after is to make piece optimal, and not be the idealest product certainly. With respect to square steel lamina 5 axes are machined and character, not be all phyletic lamina, not be all place on blade should go up 5 axes treatment. And the two flank with very strict requirement and radial face can consider to use planar grinding machine, treatment is multichip; Circular arc chamfer of Xie Gen and foliaceous root underside and Xie Ding can be used establish a car to undertake machining to blade group group greatly; Assured precision and exterior quality namely so, also improved efficiency greatly. The thick mill open up wasteland that restricts Fang Gang to machine efficiency is OK outside appoint, perhaps do on general accuracy machine tool. Let 5 axes equipment do it most those who be good at, in order to produce its biggest effect. Normal > conclusion Normal > equipment is not all-purpose, it has the advantage that cannot compare, have the limitation of its oneself as much. Although 5 axes treatment of Fang Gang simplified craft tool, but technology program still has crucial effect. The treatment of square steel lamina is representing the top level that machines precision without limited company of stannic turbine blade. Of technology program make should act on the principle that goes after price of the biggest sex to compare, make the craft plan of square steel lamina reasonably. CNC Milling