Summary: Introduced the principle of system of tool of module of a few kinds of all-round short awl, characteristic, undertook an analysis to its. Of 1 problem put forward as tool system change stage by stage the requirement that reachs pair of mechanical environments, on current international system of tool of type of module of faddish all-round short awl. This system is reached with taller fixed position precision, reliable balance function good tigidity is occupational with tenacity the commanding elevation that module chemical industry provides a system, have greatly replace 7:2The situation of 4 awl handle. Because of 7:24 awl handle relies on cone fixed position completely, and bulk big, rotate speed is low, repeat the time that change a knife to grow, already cannot get used to the treatment of high spirit product far. Current, a lot of tool manufacturer on international rolled out system of tool of type of module of all-round short awl: American Kennametal and combination of German Widia company were developed 1987 " 1:1System of tool of module of KM of 0 short awl " , advanced principle of double fixed position of end panel and taper first. Subsequently Swedish Sandvik company put forward again " system of tool of CAPTO of short awl of 3 arris circle " , and Germany issued DIN69893 standard formally 1993 again, namely level of HSK tool authority, it and KM system essentially similar. Each shining more brilliantly in the other's company of a few kinds of systems, a heat wave is lifted in tool industry. KM, HSK and CAPTO system divide 2 working principles to be moved for the hand with motor-driven two kinds, with double cooperate fixed position principle, fall in ample taut force motive namely, the flexibility with certain generation of short conic power is out of shape and be filled with too with cone cooperate, realize double fixed position of awl shoulder end panel and cone, because the structure of both is different, its job principle is different also. (A) receives a hammer to tighten solid from the back (B) end panel originallies closely (C) pull rod operates expand if a system of CAPTO of system of clamp of 1 CAPTO of the graph that tighten solid pursues 1, clamp has 3 kinds of kind, the first kind of method applies to the roll that uses on machining center cutting tool, with the center pulls a hammer to tighten module of solid cutting head to see graph 1(a) at the back; The 2nd kind of method sees a picture from module of head of cutting of end panel close solid (1b) ; The 3rd kind of method is to use pull rod to expand cover those who press cutting tool inside in groove, form firm link, apply to turning treatment and the roll that are used on lathe cutting tool to see a picture (1c) . (Orgnaization of locking of A) steel ball (if system of KM of system of clamp of 2 KM of composition of a picture of machine of locking of B) card reed, HSK, HSK pursues 2, structure of the first kind of KM, clamp unit uses the grounder raceway system that takes locking. Through rotating radial of edge of torsion bolt pull rod moves, in receiving grounder tip cutting unit raceway, raceway takes 35 ° cone, cone of steel ball edge drives cutting unit to move to clamp unit, cooperate through squeezing depressive to press, achieve double fixed position to be like graph 2(a) . Structure of the 2nd kind of HSK, use orgnaization blocking reed, rotate pull a hammer, use those who direct covered shift causes calorie of spring to be out of shape will realize double fixed position to be like graph 2(b) . Motor-driven locking need not use wrench namely, full automatic the processing capability that changes tool system quickly to have cutting tool to store, control systematic signal through activation machine tool, what can realize cutting tool is fast change. 3 characteristics are bit more identical the 7:2 that uses small taper conventionTaper of 4 awl handle is more than the taper of short awl, the awl handle of small taper is machined easily, and its position performance is good. Use double fixed position to pursue 3 pairs of fixed position from theoretic tell, only implementation achieves tall fixed position precision without clearance fit ability, and 1:1System of 0 short awl used this principle just about. Below ample taut force motive, the flexibility that uses taper is out of shape generation is filled with too cooperate, realize double fixed position of end panel and cone, its precision is accordingly tall, join tigidity is good (3) seeing a picture. Repeat fixed position precision tall it is system of linear of center of a kind of high accuracy, the repetition of its radial, axial locates precision can achieve ± 0. 0025mm3.
1.
Short basis of the 4 time that change a knife is measured actually, the time changing a knife of this system is 30s only. Systematization of cutting tool management in view of this system bulk small, weight is light, facilitate change quickly, apply to large machining center, cutting tool can have systematization government, unite pair of knives, detect. The trends with the design principle stable do one's best that balances function to stabilize short awl is balanced, when be close to high rotate speed and precision namely, balance function of the system is changeless. Cool inside the boring cutter of cooling unit inside the cutting unit of cooling orgnaization inside the system or belt but greatly the life that improves cutting tool. Moment of force of clamp muscularity, locking is small with general taper fixed position photograph is compared, the 5 ～ that its locking force is convention 7 times, and 25 handles are locking moment of force 2.
5 ～ 3.
5N · M, generation radial pressure 2.
The locking moment of force of 8kN;100 size power is 181.
6 ～ 242.
7N · M, generation radial pressure 43.
9kN. Differentia pursues 4 axial and radial load distributing transfer torque pattern different CAPTO system uses 3 arris conic join structure delivers torque, implementation transfers torque and power without slip ground (4) seeing a picture. Have nothing to do with direction of rotation, and do not arise to lock up a phenomenon oneself. As a result of the special appearance of 3 arris circle, make action is in the force on join face is symmetrical and even ground to distributing, and interface is bigger, won't produce phenomenon of stress peak value. Vibration is out of shape small, because its surface pressure is inferior, wear away to also decrease significantly. And KM, HSK uses steel ball or block reed clamp, use steel ball to deliver torque, slip transfer torque and power, have to direction of rotation alternative (2) seeing a picture. The structure is numerous brief differ CAPTO system uses 3 arris circle to deliver torque, and do not need any balls, key or annul wait for a component, its structure is simple; And KM, HSK uses steel ball to deserve to deliver torque with slip orbit locking, the component that the structure involves is more, compare comparatively complex. The 3 arris circle in different CAPTO structure reachs treatment difficulty to it the 3 arris aperture of form a complete set, detect the very difficult treatment such as equipment, because 3 arris circle is with a when generate with infinite value second (beyond) of cycloidal photograph parallel be in the curve inside finite value (5) seeing a picture. At present the most manufacturer of our country still does not have process capability, foreign manufacturer is indispensible also use special device a future life to produce. Graph round curve of 5 3 arris and the treatment of the card reed in structure of KM, HSK and steel ball slideway exists certain difficulty, among them qualitative to blocking the ability of reed, heat treatment and treatment parameter requirement are more slashing, otherwise easy cause lock dead appearance. Anyhow, 3 arris circle is one kind is close to Utopian design, but its machine function to differ; And the treatment of HSK more tend in a popular style, processability can be better. 4 last words carry out a proof, KM, HSK and CAPTO system are in use process of nearly more than 20 years, very outstanding application is in turning, auger cut, the treatment domain such as boring and milling, had certain effect to raise the precision of the product. Now in the world formal already 1:1System of 0 short awl rates international level, popularize extensively inside global limits. Although its in some way returns endless be apt to to use up the United States, but the new trend that we believe to it will continue to lead system of 21 centuries tool. CNC Milling