Compact model machine tool of 3 tall CNC Machining

Time:2023-06-26 11:59:21
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source:PURELIFE CNC Machining

To realize processing technique of cutting of high-powered efficient high speed, manufacturer developed the machine tool to have milling head of exchangeable main shaft / the machine tool of 3 tall CNC Machining of technology of core of canister of electric main shaft, better land satisfied a few users to be opposite general-purpose the effective demand of CNC Machining machine tool. Can exchange main shaft milling head automatically, may the machine tool of CNC Machining of high-powered efficient high speed of system of exchange report main shaft has a lot of advantages admittedly, but also return existence to be like below a few problems: (1) to affirmatory machine tool main shaft character, high power tall torsion means inferior rotate speed normally, and high power high rotate speed means inferior torsion, former much application is in rough machining / half rough machining or circumstance of treatment of cutting of hard alloy material, and latter applies in semifinishing machining more / finish machining or circumstance of treatment of cutting of light alloy material, for confluence compositive these two kinds of different cutting process application, process capability of patulous machine tool, the main shaft milling head that uses many different character with respect to need / combination of electric main shaft uses talent likely, and this imply should raise facility cost. (2) no matter be exchangeable main shaft milling head or or but exchange report main shaft all needs to use almost " collect type " commutative technology, this should be had commonly with respect to requirement machine tool bigger can work space, in order to regard main shaft as milling head / electric main shaft is deposited beforehand with automatic exchange, this is right a lot of general large and medium-sized existence of application of machine tool of CNC Machining center has apparent limitation. (3) main shaft milling head / utilization rate of electric main shaft is low. The main shaft head that place of machine tool of CNC Machining of typical high-powered efficient high speed deposits beforehand or electric main shaft, be used at what cutting machines by the ability when mount main shaft only, bring about main shaft head or utilization rate of electric main shaft is low, production resource is wasteful and serious. If existence has electric machinery of a kind of main shaft its power / torsion - if curve of rotate speed character can be enclothed before narrate limits of character of electric machinery of many main shaft, can use head of a main shaft to replace head of many main shaft. From metallic cutting principle knowable, have to main shaft of CNC Machining machine tool: Here, p: Power of main shaft cutting, KW; T: Torsion of main shaft cutting, nm; N: Main shaft rotate speed, r/min. From on type can see, below circumstance of affirmatory main shaft power, torsion of main shaft cutting and rotate speed each other are restrict. This also is in front the high power tall torsion of place discussion means inferior rotate speed normally, and the reason that high power high rotate speed means inferior torsion. But also exist have a kind of such cases: Decide when main shaft power and enough tall when, if can gain taller torsion and the biggest rotate speed at the same time, have enough wide but timing scope, possible give attention to two or morethings satisfies thick finish machining or / the demand that machines with material of hard light alloy. This that is to say, if the milling head of onefold main shaft of scope of wide timing of high rotate speed of tall torsion of a kind of high power is used on CNC Machining machine tool criterion but a certain number of problems that better land solves afore-mentioned place to discuss. Along with the development of technology of main shaft of report of tall torsion high speed and progress, the electric main shaft that the design makes range of wide timing of high rotate speed of tall torsion of a kind of high power is possible already, manufacturer of main shaft of a few famous report already rolled out main shaft of report of high rotate speed of high power tall torsion in order to get used to the demand of machine tool manufacturer. For this, what manufacturer of machine tool of a few numerical control rolled out configuration to have main shaft of report of high rotate speed of tall torsion of onefold high power is compact model machine tool of 3 tall CNC Machining. Machine tool of MC of numerical control of high speed of graph 1 KX200 is current, be in compact model the phone of high rotate speed of high power tall torsion that uses on machine tool of 3 tall CNC Machining main shaft, its are highest rotate speed is in more 10, 000 ～ 18, 000r/min, the biggest torsion is 200 ～ 500Nm more, base fast it is more 1, 000 ～ 2, 000r/min. French Huron (You Long) KX200 of center of milling of door of dragon of 5 axes numerical control can serve as the vertical of accurate and efficient high speed that the company rolls out recently compact model a typical example of machine tool of 3 tall CNC Machining, see right picture. Journey of axis of X/Y/Z of this machine tool is amounted to 3, 300/2, 300/1, 000mm, workbench face is 3, 500 × 1, 250mm. To raise tigidity of machine tool structure, use structure of fixed dragon door, and only by door of dragon of bridge-type of workbench and base, whole and main shaft milling head and ram 3 large parts are comprised. The structure of door of dragon of bridge-type of big ply whole of special design is had good suck brace up quality, ensure treatment is process stability, tall tigidity and high accuracy. Design of milling head of main shaft of KX200 machine tool is take B/C axis and the milling head of the type that place fork of compositive main shaft having report; B/C axis by pitching moment electric machinery direct drive, 95 ° of B axis ± , 190 ° of C axis ± ; Permanent power of electric main shaft amounts to 70kW (S6: 86kW) , torsion 190Nm (S6: 235Nm) , base fast 3, 500r/min, when 12000r/min of top rotate speed its torsion still exceeds 50Nm. XYZ3 linear axis locates endlong precision 7 μ M, repeat fixed position precision 4 μ M, 7" of precision of fixed position of runner shaft coming back, repeat 4" of fixed position precision. Fast feed speed is X/Y/Z linear axis 25/40/40mmin-1, acceleration 7m/s2, 30r/min of speed of runner shaft coming back, acceleration 6 ° / S2. Accordingly, what this machine tool can realize high power, high rate and high accuracy is good and compositive, can use at HEM-HSM to machine a variety of hard metal ability such as titanium and high strenth steel, also can use at processing aluminium alloy material, in Europe a lot of aviation fly extensive and actual applying got in machine manufactory. Be based on power of main shaft of report of this machine tool / torsion curve of character of every rotate speed, according to workpiece material and cutting tool actual diameter serves as thick / when the HEM of half rough machining is machined, optional choose uses main shaft rotate speed 2, 000 ～ 5, 000r/min, and as half essence / the HSM treatment of finish machining can choose to use main shaft rotate speed 6, 000 ～ 11, 500r/min limits. What the graph on machine tool of MC of numerical control of high speed of graph 2 XS is company of Parpas of manufacturer of machine tool of Italian large numerical control to be rolled out for manufacturing industry of Hangyu and mould is high-powered large wear dragon door movable type high XS of machine tool of center of milling of 5 axes numerical control, journey of its XYZ axis can be amounted to 3, 000 ～ 20, 000 Mm, 2, 500/3, 000/3, 500 Mm and 1, 250 /1, 500 Mm. Design of this machine tool has take A/C two runner shaft coming back are compositive milling head of the main shaft that convert phone, 50kW of main shaft permanent power, torsion 265Nm, base fast 1, 800r/min, top rotate speed 15, 000r/min. Compare with photograph of main shaft of report of machine tool of KX200 of French Huron company, have bigger torsion and higher rotate speed. This machine tool is to move completely through cutting tool the number controls implementation 5 axes linkage, speed of X/Y/Z axis feed is as high as 60/40/40 Mmin-1, a/C axis amounts to 40r/min, and in top rotate speed 15, its torsion still exceeds 30Nm when 000r/min. Same, this machine tool can be used at processing the light alloy material such as aluminium alloy, also can use at processing the hard alloy material such as titanium alloy. In the meantime, be based on power of main shaft of report of this machine tool / torsion curve of character of every rotate speed, according to workpiece material and cutting tool actual diameter should serve as thick / when the HEM of half rough machining is machined, optional choose uses main shaft rotate speed 800 ～ 4, 500r/min, and as half essence / the HSM treatment of finish machining can choose to use main shaft rotate speed 5, 000 ～ 14, 000r/min limits. CNC Milling