Set of advanced hydraulic pressure knife handle
- source:LENA CNC Machining
2 times above, and the addition that follows internal diameter, can can increase clamping force considerably more. In addition, process of clamp of knife handle of general and stretch collet is circumgyrate clamp screw cap or coat canister is coming back close while also happen to in mobile, make in this process cutting tool sinks to collet direction a few (0.
1 or so) . And make position of cutting tool axial happens fluctuant, hydraulic pressure knife handle does not have this problem. It is before additionally in narrow component structure, machine darker place, be forced to use long bit directly, establish milling cutter, reamer go machining, this kind of cutting tool, not only the price is high, and grew tigidity very poor, injure easily. Often recommend the knife handle of shrinkage fitting type that uses conic form fine body for this, conic knife handle hangs its fine body extend length very long, the cutting tool that reason requires mount weak point only can. When clip of knife handle of shrinkage fitting type holds work, must heat first knife handle, need has add shrinkage fitting buy technically, installation take time gives or take a lot of trouble. And tigidity and respect of treatment surface quality still are not worth somewhat. NT company developed PHCS of knife handle of new fine body hydraulic pressure again, can working easily conveniently experience is complex the deep of the spare parts, with establish milling cutter, reamer, get first class to machine, the curved surface inclined plane that can use ball head to establish the treatment deep such as milling cutter on 5 axes machine tool, cause industry public figure to pay close attention to a welcome. (The knife handle of fine body of treatment deep curved surface that graph 3) graph uses on machine tool of 3 5 axes fine grow again, of the front after its mount cutting tool brace up place quantity and tigidity, fight brace up function is very main also. PHCS extends 4d to be in in cutting tool brace up place precision actual measurement to be in static tigidity of less than of 3 μ M also relatively tall; of shrinkage fitting type places two kinds of knife handle the Φ that hold D= at the same time the cutting tool of 12, in dangerous extend 4d=48 millimeter place, progressively to load, classics experiment is measured curve, of knife handle of hydraulic pressure of PHCS fine body be out of shape displacement is measured small, tigidity is taller. Because,this is type of its unlike shrinkage fitting, do more thickly likely. Its fight PHCS brace up quality of function treatment surface is higher than shrinkage fitting type also, it is all sorts of commonly used clip in supporting a method best. Because its clamp cutting tool is,pass liquid medium. The sleeve that clip holds cutting tool is supported by oil of integral high pressure (graph 4 right) , its all the oil pocket oily fluid of cloth drew the oscillatory energy in treatment, make vibration comes down quickly damply, produce vibration isolation result thereby. Graph the 4 comparison that wrong department is degradation curve of vibration of means of two kinds of clamp. Of graph 4 PHCS fight brace up principle and with the bore that narrow place deep manages the part is compared in oscillatory degradation curve into the knife handle that fit pattern, to each company, it is a difficult problem from beginning to end. Often knife handle and broach need to be extended very longly. And the top of broach brace up the demand that place an amount is more little. NT company mixes the advantage of knife handle of PHCS fine body the top that they develop before brace up place adjustable to adjacent at " 0 " " R " the structural photograph of Zero knife handle is united in wedlock rise, developed PHCS further adjustable brace up place model knife handle. The top that makes extend length to amount to 200mm broach brace up place adjust less than of 2 μ M. Solved this difficult problem thereby. Surface of knife handle of each hydraulic pressure had whole PHC efficiency antirust processing of special plating Fu, because of,can prevent between knife handle and main shaft wear away and cause card to bite felt and burn, prevent main shaft unusual wear away. Prolong cutting tool life, prevent to machine precision aggravation. Had this kind of knife handle, water-solubility cutting fluid also can be at ease use, improved cutting efficiency thereby. CNC Milling