As people life quality rise and the abidance that Chinese government serves a field in public health and Medical Protection is devoted, chinese market is swift and violent to the demand growth of medical apparatus and instruments. However market competition is increasingly intense also, especially high-end medical apparatus and instruments and appliance market, domestic industry rises product quality to compete with entrance product through craft innovation urgently. Group of Er of rice of strange summer of Swiss GF A is versed in as the world mould and nice spare parts machine the systematic supplier of the industry, the application that regards a key as the accurate processing technique that develops medical treatment field from beginning to end develops a field, developed the high speed that suits medical treatment to process application high-powered machining center and discharge treatment machine tool and relevant craft use a technology, improved the treatment quality of relevant spare parts and treatment efficiency greatly, because of this GF Ajixiamier became medical treatment technology to machine a domain worldwide inside first-rate treatment facilities supplier, its product machines an enterprise to have application in the famous medical apparatus and instruments of world each district. Current, a key that the treatment of embedded content is Mill machine tool of GF A Jixia applies the orthopaedics with domestic rapid development domain. Embedded content uses orthopaedics more titanium alloy or stainless steel, main part has hammer of board of set a bone, artificial joint, bone and file of auxiliary tool bone to wait. Article general with file of board of set a bone, bone and the treatment that knee joint bone fills up are for the exemple bright use high speed the advantage of spare parts of medical apparatus and instruments of treatment of high-powered milling machining center and GF A Jixia the user of medical treatment industry of Mill and China. Board of set a bone uses titanium alloy data more (graph 1) , cent is different norms measurement, every kinds of dimension has particular batch demand, because this belongs to production of the small lot in much breed, flexible to machining the treatment of efficiency and equipment the demand is very high. The exterior figure of board of set a bone is 3D curved surface, distributinging on 3D curved surface many via. As a result of the normal coincide of aperture center line and curved surface, because each this aperture centers are mutual not parallel, if use a tradition to machine a method, in common fixed position treatment is used for many times on machining center of 3 axes vertical, efficiency is low, precision consistency is poor, and clamping apparatus is complex. The machining center of high speed of axis of MIKRON UCP600 Vario 5 that uses GF A strange Xia Mier to be treatment of small-sized and nice spare parts to roll out only, main shaft of report of configuration 20000r/min high speed will undertake machining, swing through workbench fixed position, whole treatment is completed below the circumstance that can hold card in workpiece, saved the many time that hold card, raised the precision consistency of workpiece. Graph 1 set a broken bone board use titanium alloy data more however the user discovers in treatment, although machine efficiency to rise greatly, but still fail to achieve optimal status. The client hopes use special fixture installs calorie of many workpiece treatment, but discovery has interference in the cutting tool when many workpiece are machined and workbench. The applied engineer of China of Er of rice of GF A strange summer undertook an analysis to the craft of the user, the clamping apparatus height that discovers because the user is designed,interference problem is is too low, 80mm of heighten of proposal general clamping apparatus, can block 4 workpiece with fashionable dress so, and the knife handle that can use average length, increased efficiency to reduce cutting tool to purchase cost again already. The engineer suggests instead of will original craft of rough machining bore uses hole milling of interpolation of ball head milling cutter at the same time, such the client 11 original knives, change a knife 13 times to reduce 8 knives, change a knife 8 times. Because install card to plan is improved and change knife time,decrease merely, the time that attends on average in every workpiece decreased 2. 4min, block 4 workpiece as a result of outfit at the same time, still saved axis of C axis B to rotate the time of fixed position probably every 1.
5min. Spend the time with craft economic institute plus actor, the handling time of individual spare parts shortens from 24 original minutes of 40 seconds 30 seconds, efficiency rises 25% , the user is very satisfactory. Bone file regards orthopaedics as the main tool of the operation, appearance complex and material hardness is big, need uses machine tool of 5 axes linkage to machine. To long bone file, because figure is slim, if use common vertical of 5 axes machine tool holds card (graph 2) , the arm of force when treatment is too chief, and use longer cutting tool to avoid to interfere need, treatment tigidity is very poor, vibration is very big. Graph 2 to long bone file, because figure is slim, if use common the MIKRON UCP 600 Vario RTT of Er of A Jixia rice of NextpageGF of card of outfit of vertical of 5 axes machine tool is to use torque electric machinery the machining center of high speed of 5 axes linkage of direct drive workbench (graph 3) , big workbench swings the main shaft of high speed report of limits and 20000r/min made sure bone file is complex the treatment of appearance. This machine tool is compositive automatic tailstock system, can two end clip holds work, workbench swings to undertake machining to horizontal position. And it is 5 axes circumgyrate only kind the moderate of workbench area size that the spare parts designs, averted cutting tool interference, can choose the cutting tool of normal length. At the same time the pressure of tailstock tip can adjust according to different spare parts, assured to install the stability of card, the vibration in treatment decreases apparently, can achieve the treatment result of high quality consequently. Bone mat uses knee joint of machining center of linkage of axis of graph 3MIKRON UCP 600 Vario RTT 5 material of high polymer polyethylene, 3D outline curved surface, taller to the requirement of exterior quality. This kind of material suits to use high speed milling very much, can use engorge knife to measure high rotate speed to machine, improve treatment efficiency not only, and improve exterior quality greatly. Use machining center of vertical of milling of high speed of Mill MIKRON HSM 500 of GF A Jixia, configure main shaft of report of 42000r/min high speed, use hard alloy of whole of thick, finish machining to establish milling cutter each one, finish machining uses full rotate speed (42000r/min) undertake machining, the 23min when whole treatment is used only, exterior surface roughness can achieve Ra0.
4 μ M. Graph mat of 4 knee joint bone use data of high polymer polyethylene, 3D outline curved surface, machine example higher to the requirement of exterior quality to be able to see through above, use advanced treatment facilities and applied technology, can improve the treatment quality of spare parts of key of medical treatment domain and treatment efficiency greatly. The manufacturing characteristic of the small lot in the much breed as a result of spare parts of medical treatment domain, when choosing a machine tool must mature the adaptability that its machine flexibility and craft. And the applied technology actual strength of the supplier also nots allow small gaze, some users purchased the high-grade machine tool of well-known trademark not to develop very good effectiveness however, the main applied support that is manufacturer so formerly is inadequate, the more sophisticated machine tool equipment needs strong application to support the more. CNC Milling