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Milling Machining Center with non-rounded square hole

Action. 3 Milling square hole movement derived mathematical expression is shown in Figure 1b, assuming that the square hole of side length of 6, the tool cross-section of equilateral triangle, triangle side holiday as a, Ⅱ a little less than 6 to prevent the cutting tool cut off the workpiece, then the A blade height of the triangle which is:: Port sin60o: o / 2 and the edge radius of gyration of the cutting tool edge radius: r = 2 / 3: Ⅱ / 3 if the A position in which blade defined as high-angle triangle (shown in A02) and the angle between the axis of 0,[link widoczny dla zalogowanych], when A 0 = O warble from the edge to 0 = month, and then go to / 2, A Blade in the location of the hole wall by the A . An A-also, so that A completes the upper right edge blade at right angles to the cutting movement. Obtained from Figure 1b. A blade when the tool turns any corner of the coordinate system in the xoy coordinate values is calculated as: Ao = rcos ~ (I) yoA = rsin ~ (2) (time 0 = 0o a 45. When, = 0) At this point A square hole in the workpiece edge corresponds to the position of the right wall of the formula for calculating the coordinates:: b / 2 (3) m = btan ~ o / 2 (4) then the tool center coordinates calculated as: goo = Si a = b / 2 a 3aoasg ~ / 3 (5) yoo = ywA a shame btancp / 2 a ~ / 3asin ~ / 3 (6) under the principle of coordinate transformation. If this time around a mouth edge, and the tool table as long as the instantaneous center coordinates corresponding to the translational motion on it. = A Xoo, y a yoo, y shift values for the table. Based on the above calculation method,[link widoczny dla zalogowanych], the tool can be obtained at: roy each quadrant of the Cartesian coordinates of the instantaneous center formula for computing convenience, make the following assumptions: E = b/2F = mouth ∞ s. / 30: ds_n. / 3tt = btan ~ / 2 then A Blade in the first quadrant, the tool center coordinates for the table I. Xun Xiang 1, the center coordinates 0P'oD knife a 45 *- FIfG45. Yan Kuang 9 a 9 a twenty-CE-F D can be A blade in the same way the other three quadrants of the tool center coordinates the formula for the calculation of convenience for further simplification, let: U = E-F = 1 1 C is a simplified calculation of the above was the decline of 2 Table 2o simplified tool center coordinates, Y axis for the table relative to the center of the tool by the plane moving coordinates. 'After a simplified tool formula instantaneous center coordinates to the computer program code has brought great convenience to lanthanum. 4 0 square hole cutter milling hard milling process diagram of Figure 2. In order to enhance edge strength edge may be convex triangular-shaped cutter into San, milling the square hole of the main program block diagram shown in Figure 3. 42 (Mold Industrial> 1998.No.8 General Mills 5 Conclusion 210 Figure 2 square hole if the above processing method is feasible, then by extension,[link widoczny dla zalogowanych], like the rectangular hole, hexagonal, octagonal shaped hole milling as long as the software is designed to make some changes can be achieved. In the specific implementation process,[link widoczny dla zalogowanych], the vision can be assisted rotation axis (the fourth axis) drive the tool rotates, movement. Another way to do a dedicated CNC tool milling head, the spindle servo motor with the spindle in the plane, y direction of the servo motors of two linked to each other, so that you can ensure that a rotary movement of the tool in the At the same time, to achieve the shape of the workpiece profile milling holes. l bow began to side of the square hole of the workpiece jurisdiction jurisdiction of the tool diameter parameters Optional parameters into the hole to set the tool spindle speed borescope probe set the direction of degree of cutting the amount of limonene per Huan Zhu Lan + Yf =, 4 ..................,[link widoczny dla zalogowanych]! I! .. One asked for a turn by the next ten sub 'N cutting depth + dl Figure 3 the main program block diagram of milling with square hole processing power in the mold cavity in dogs homes fertilizer industry study (Ann shake Hefei 230009, China) Shen Jian _-● __ ● ● _ a process,, Ib / , Abstract introduced the practice of non-electrolytes, pulse current processing and vibration feed for mold processing of these three students to the principles of the electrochemical anodic dissolution for processing, it is suitable for die cavity machining. electrochemical machining, high productivity, good surface quality (J ≤ 1.6m). complex The mold cavity can be a shaping, processing material in the mold Received Date: l9 l2 11 years after the deal is, when the electrochemical machining tool electrode is not, for a certain volume of the cavity mold processing is very favorable. electrolysis processing in the mold of the main problem is that precision is not high. To this end, after many years in a series of electrochemical machining of new technology research, including nonlinear electrolyte, pulsed current processing and feed processing vibration, so that the mold electrolysis processing significantly improved the precision, repeatability can reach O.05-0.1 hiss Ⅱ n.

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