Gush attracts the application in be being gotten in big batch aperture to machine
- Time:
- Click:115
Inside lever 2.
Outside lever 3, 7.
Bearing 4.
High-pressured cutting fluid enters the mouth 5, 6.
Connector 8.
Decrease brace up 9.
The mouth that discharge bits 10.
Crescent moon chamfer pursues it is cooling that 1 gush sucks the problem that in getting structure and principle diagram to be versed in in Kong Jia, basically should solve bits of lubricant, platoon and oriented. High-pressured cutting fluid had lubricant, refrigeration and the effect that discharge bits in working loop: And direct by broach oneself structure the characteristic comes true (the 2) that be like a graph, broach is used solder type blade of hard alloy cutting, there are a space block that prop up and an oriented space block on broach, the space block that prop up uses the radial load that produces by the cutting blade of broach itself asymmetry evenly, and the action that directs space block removes oneself of a broach to direct, at the same time the space block that prop up and oriented space block return pair of hole wall to have an effect that repair light, raised the surface roughness precision of aperture. Through above introduction we can see, gush is sucked auger can realize high speed cutting, general cutting speed can amount to 100m.
Min, because this can achieve high feed rate: Kong Jia is versed in precision can amount to H7, surface roughness can amount to Ra1 commonly.
6µm. Because sufficient refrigeration is lubricant,can decelerate broach wear away, because this machines big batch,Kong Shi also can maintain the stability of precision. Graph the compressor that my company produces the characteristic that opening of 2 my firms machines 2 broach sketch map, bolster plate grows 4000 ～ 5000mm commonly, wide 2500mm, thick 300mm is controlled, there are 240 ～ on its 260 via, precision H7, surface roughness Ra3.
2µm. It is before bore of high-speed steel broach, reaming and opening of bore with a reamer are used on radial drilling machine, tall to technical level requirement of the worker, expend man-hour to grow, treatment precision is not tall and not stable. If use spray,suck auger the technology is ameliorable these phenomena. Understand according to us, the Germany that ranks the first place in world compressor production industry solemn Le Mojiadu company (MW) uses gush to suck those who get a technology to undertake bolster plate aperture is machined namely. The expert that occupy MW introduces, gush is sucked getting a technology to be in abroad is mature technology already, the result that their company applies this technology to machine bolster plate aperture is very good. Accordingly, via be being proved for many times, company decision uses gush to suck in treatment of bolster plate aperture get a technology. What we use 3 application example is the Ejector system of Swedish Sandvik company. According to the structural characteristic of bolster plate itself, use vertical getting to cut a method. Whether successful platoon bits is the crucial question in treatment, because do not have experience to be able to be drawn lessons from, we undertook trying cutting to give more appropriate cutting parameter in order to fumble. It is 45 steel according to workpiece material above all, material of broach razor blade is hard alloy character, v=100m/min of speed of cutting of preliminary make choice of, bore diameter D=40.
1mm, computation gives rotate speed to choose every to turn for N=1000v/(pD)=800(r/min) feed F=0.
1mm, calculate accordingly give feed speed to be F=f × N=0.
After force of hydraulic pressure of good in set cutting and discharge are worth 1 × 800=80(mm/min) , begin to undertake cutting. Those who observe eduction notice to cut bits in cutting process, the size that judges the on any account that gives cutting rate and feed according to cutting the figure of bits is proper, adjust machine tool rotate speed and feed for many times, f=120mm/min rises in feed speed, namely F=0.
When 15mm/r, cut bits to be in better position. It is at the same time in whole treatment process, did not appear the phenomenon that the platoon cutting bits that we worry about does not come out, platoon bits is very smooth, the effect that break bits is good, auger cut a course smooth, aperture machines figuration, surface roughness achieved Ra1.
6µm, dimension is Ø40.
10mm. Cut an experiment via be being gotten for many times, the dimension of aperture all is stabilized in Ø40.
10mm, precision maintains a gender to had comparatived. Compare with conventional technology photograph, the dimension precision of aperture and surface roughness precision all increased a class, and manufacturing efficiency rises considerably, managing man-hour makes an appointment with 9 ～ 10 times. Of course, what must explain is afore-mentioned cutting parameter it is to be in a variety of conditions such as sort of fluid of qualitative, cutting and pressure lay machine tool ability, cutting tool and workpiece capable person affirmatory. The basis answers in be being produced actually particular case is particular analysis, improve the breed of cutting fluid for example, can raise cutting speed and feed, prolong cutting tool life, obtain better dimension precision and surface roughness, improve manufacturing efficiency and product quality further. Apparent, demand of if the batch of treatment aperture is big, periodic short, precision is high, use gush to suck getting a technology is better choice undoubtedly. CNC Milling