# Line cut machines numerical control electric spark example

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Treatment give typical examples (one) numerical control walks along a cut of electric spark line quickly to machine give typical examples 1. Manual process designing machines an exercitation (1) exercitation purpose: The skill of manual work out of the line cut machine program that ① masters simple spare parts; ② is familiar with ISO code process designing and 3B format process designing; ③ is familiar with the main operation of line cut machine tool. (2) the exercitation asks to pass a field trip, the student can wait for a requirement according to the dimension of the spare parts, precision, craft, applied ISO code or work out of 3B format handiwork give line cut machine program, and use treatment of line cut machine tool give the eligible part that accords with blueprint requirement. (3) machine tool of cut of molded lines of exercitation equipment DK7725E. (4) G92 X- Y- of of code of process designing of commonly used ISO: Machine coordinate start with set of opposite coordinate means. G27: Means of set XY/UV planar linkage. G01 X- Y- (U- V- ) : Linear interpolation. X Y: Express to be the terminal coordinate of coordinate origin with sharp starting point in XY plane. U V: Express to be the terminal coordinate of coordinate origin with sharp starting point in UV plane. G02 X- Y- I- J- G02 U- V- I- J- : Arrange round interpolation instruction. G03 X- Y- I- J- : Go against round interpolation instruction. It is with circular arc start is coordinate origin in above G02, G03, x, Y (U, V) express terminal coordinate, i, J expresses coordinate of the centre of a circle. M00: Time-out. M02: The program ends. (5) : of B of of of of of Z of of G of of J of of B of Y of B of X of B of of of 3B block format ? Does dim glow of the setting sun of of cut down of sea of stand upright of bluff of ox of pointing to Ze carry dim glow of the setting sun of of Zhuang of bluff Ni sea to carry: of J of of of? ? Bluff of caries of analyse ざ pulls Hangzhou analyse relatively? of ＃ of Sui of Ga of ぶ of Hang Yong of Ying bluff grave) treatment example pursues one ① craft analyses 1 spare parts: Treatment shows spare parts external form 1 times like the graph, semifinished product dimension is 60 × 60 ｍ ｍ , must set in semifinished product to knife position besides, the G in to in an attempt to nods coordinate (- 20, - 10) as dot removing a knife, a nods coordinate (- 10, - 10) as case cut a point. Calculate to facilitate, molybdenum silk radius is taken no account of to compensate a value when process designing. Go against clock direction to take a knife. ② ISO program: G92 X-20000 Y-10000 of program explain with notes builds workpiece coordinate department for origin with O dot, coordinate of dot removing a knife is (- 20, - 10) ; G01 X10000 Y0 selects a site from G, a dot cuts a point to rise; G01 X40000 Y0 selects B site from A; of of G03 X0 Y20000 I0 J10000 selects C site from B; of of of of of of G01 X-20000 Y0 selects D site from C; G01 X0 Y20000 selects E site from D; of G03 X-20000 Y0 I-10000 J0 selects F site from E; of of of of of of G01 X0 Y-40000 selects A site from F; of of of of of of G01 X-10000 Y0 returns G of dot removing a knife from A dot; Program of of of of of of of of of M00 ends. Process of ③ 3B form: B10000 B0 B10000 GX L1 of program explain with notes selects a site from G, a dot cuts a point to rise; B40000 B0 B40000 GX L1 selects B site from A; B0 B10000 B20000 GX NR4 selects C site from B; B20000 B0 B20000 GX L3 selects D site from C; B0 B20000 B20000 GY L2 selects E site from D; B10000 B0 B20000 GY NR4 selects F site from E; B0 B40000 B40000 GY L4 selects A site from F; B10000 B0 B10000 GX L3 returns end of program of D of G of dot removing a knife from A dot. ④ treatment: The machine tool that in pressing the 3rd, narrates operates measure to undertake. 2. Automatic process designing machines an exercitation (1) exercitation purpose and requirement: The painterly function of system of process designing of ① familiar CNC-10A and graph edit a function; ② is familiar with the function of automatic process designing of system of CNC-10A process designing; ③ control CNC-10A controls all sorts of functions of the system. (2) exercitation equipment: Machine tool of cut of DK7725E molded lines reachs system of CNC-10A control, process designing. Graph 2 spare partses 2 (3) machine example: ① craft analyses: Treatment shows five-pointed star external form 2 times like the graph, semifinished product dimension is 60 × 60 ｍ ｍ , must set in semifinished product to knife position besides, the E in to in an attempt to nods coordinate (- 10, - 10) regard pair of knives as the dot, o dot cuts a point to rise, go against clock direction to take a knife. Graph 3 " OC " ② of linear parameter window is painterly: Above all draw goes out linear " OC " : On graphical scale interface, dub of mouse wrong key is linear icon, this icon is shown brunet, move cursor next to plot window inside. Right now, inside travel of clew of screen lower part " cursor " current coordinate is worth positional indication cursor. Move cursor to coordinate origin (note: Have some of error just as well, can revise) later, press Zun Jian is not put, mobile cursor, one can go out in the draw on screen linear, can make to linear parameter in playing the parameter window that give amend further, if pursue 3. Affirm without by accident hind by " Yes " exit, finish " OC " linear input. Graph 4 " CA " scale of linear parameter window " CA " linear: Ordinal dot takes cursor on screen " editor " → " rotate " → " line segment is duplicate rotate " . Screen top right corner will show " center " (clew is chosen rotate center) , left issue horny occurrence kit, cursor moves from inside kit piece to painterly window, become immediately " cropland " form, move cursor to " C " on the dot (show ' × ' form) dub Zun Jian, make choice of rotates center, right now screen top right corner appears again clew " turn " , will " cropland " model cursor moves " OC " on line segment (cursor is shown ' finger ' form) , dub Zun Jian, undertake in playing the parameter that go out to install a window parameter is installed, if pursue 4, affirm without by accident hind by " Y Es " key is exited, cursor replace kit, finish " CA " linear input. Scale " DA " linear: Its method and " CA " linear scale is basic and same, rotate center is " A " dot, turn coming back is " CA " linear, if parameter setting pursues 5. Scale " DB " linear: The method is Alexandrine. Scale " OB " linear: Smooth punctuation takes linear icon, move cursor to be nodded to B, cursor is shown " × " form, procrastinate move cursor to be nodded to O (show ' × ' form) , undertake correction to parameter in playing the linear parameter window that give, if pursue 6, by " Y Es " key is finished linear " OB " input. Graph 5 " DA " 6 of graph of linear parameter window " OB " linear parameter window pursues graph of window of parameter of 7 process designing edits: Smooth punctuation takes clip icon, icon is shown brunet, scissors form cursor ordinal move to line segment " IH " , " HG " , " GF " , " FJ " , " FI " on, line segment shows red, dub Zun Jian, delete 5 afore-mentioned line segment, next cursor replace kit. Pour R5 round wine cup: Smooth punctuation takes round horn icon, will " ∠ R " form cursor is nodded respectively take I, H, G, F, J to nod (cursor is shown ' × ' form) , pull a cursor toward part of round part, playing the value of R of parameter window lieutenant general that give to set for 5, by carriage return key is exited. The graph clears: As a result of the error that screen shows, there may be the mark of bequeath on the graph and blur somewhat. Right now, icon of repaint of usable cursor choice (icon becomes brunet) , immigrant and painterly window, the system clears afresh, scale screen. Pass above to operate, finished the input of complete graph namely. Undertake the graph saves file to disk next. Graph automatic process designing of ③ of window of enlarge of 8 method choice: Dub of mouse wrong key " process designing " → " cut process designing " , in screen left next character appear one wears form cursor, nod what cursor moves to go up to screen to the knife, press Zun Jian is not put, procrastinate move cursor to come case cut a point (note: Have some of error just as well, can revise) later, dot, hole can be cut to rising in playing the parameter window that give (nod to the knife) , the parameter such as compensation undertakes installing. Among them means of compensation and size of molybdenum silk radius, direction walking along silk, cut (cut hole or cut an appearance) and discharge clearance is concerned, want a foundation particular case is reasonable choice, if pursue 7. After parameter has been installed, by " Yes " affirm. Subsequently screen admiral appears window of enlarge of one method choice, if pursue 8. "Method chooses a window " medium triangular red indicates a card to be in is to rise cut a point, fluctuation or the fluctuation that or so line segment expresses to the place that cut a point has on workpiece graph or or so each one line segment, represent with serial number in window edge respectively (C expresses circular arc, l expresses linear, the number shows the serial number) when this line segment is made. In the window " + " express enlarge button, "- " express contractible button, magnify according to needing consumed sign every a little bit or narrow. When choosing route, can go up in serial number with cursor directly dub Zun Jian, serial number blackens bottom wrongly written or mispronounced character, cursor dub " approbate " complete method selection namely. When cannot discern which does the serial number of a row express when one line segment, usable cursor points to the corresponding line segment of the graph in the window to go up directly, cursor submits finger form, the serial number of this line segment appears in the meantime, dub Zun Jian, the serial number of line segment of its place correspondence blackens automatically color. Dub of mark of gloriole of method make choice of " approbate " , "Method chooses a window " disappear namely, at the same time scintilla has imitate cut along chooses way way, arrive " OK " end. If there is alternate way on workpiece graph, scintilla stops automatically in alternate place, play again on screen piece " method chooses a window " . Ibid place is narrated, the way with reelection right choose till " OK " . The system deletes the line segment that does not have cut to arrive automatically, show close thoroughly graph. After scintilla graph accord with takes complete route, screen top right corner appears " window of treatment switch set " , if pursue 9, have 5 choices among them: Set of treatment direction, taper, rotate jump pace, translation jumps pace and special compensation. Graph window of set of 9 treatment switch machines direction: Have the left and right sides to two triangles, represent the clockwise that go against ／ respectively, triangle of red background yellow judges direction automatically for the system. (special attention: The system judges direction automatically to must agree with scintilla simulative trend, the compensation that adds on the program code that gets otherwise is being lost contrary) if the system is automatic the way of judgement direction and scintilla imitate cut is opposite, usable mouse bolts reset, move cursor right way, nod Zun Jian, make become triangle of red background yellow. Because this exemple does not have taper, jump pace and special compensation, reason does not need to install. The small diamonds that machines top right corner of parameter set window with cursor dub " mouth " pushbutton, exit parameter window. Screen top right corner shows red " filar aperture " clew, clew user can undertake process designing of perforative, cut again to the other figure in screen. Systematic general in order to jump the form of pace pattern undertakes process designing to the graph of two above. Because this exemple does not have this requirement, can wear silk form cursor direct replace screen is left the kit of next horn (kit of consumed mark dub pursues accord with) , cut of the line that finish is automatic process designing. Exit phase of cut process designing, the system compiles generated output graph news into code of ISO numerical control through software namely (also can compile 3B program) when necessary, give corresponding line segment with bright white draw on screen. If encode is not had by accident, the line segment of two kinds of plot should coincide (or stagger compensation) . Output menu appears on screen subsequently. There is code to print in menu, code shows, code changeover, code saves file to disk, three-dimensional model and exit. Here, the choice sends console, send console to undertake machining the program that creates automatically. So far, a process of whole workpiece process designing ends, can undertake be machininged actually. ④ treatment: The machine tool that in pressing the 3rd, narrates operates measure to undertake operating. (2) line cut machines electric spark of silk of numerical control don't go yet give typical examples 1. Spare parts and treatment demand picture of of of of of of of the 10 strong punch that reduce a standard pursues graph of 11 treatment method is shown 10 times develop the punch that reduces a standard for one nicety, its ply is 30mm, material uses SKD-11, the public errand of the spare parts asks to be: Basic measure has a fraction, tolerancepublic errand is earth 0. 10mm; Basic measure has two fraction, tolerancepublic errand is earth 0. 02mm; Basic measure has 3 fraction, tolerancepublic errand is earth 0. 002mm. 2. Because precision of this spare parts is taller,preparation works, the body uses electric spark of silk of don't go yet treatment of line cut machine tool, the spare parts had precision work before online cut, the treatment precision of 3 mutual and perpendicular faces is controlled weller, and line cut surplus is little. Treatment method sees a picture 11 medium solid line parts, double dot is underlined in the graph for semifinished product appearance. 3. Operation measure and content should achieve workpiece precision requirement, must use a few, for many times cut. Mental allowance successive decreases, treatment precision rises gradually. From the particular operation that switchs on the mobile phone to machine an end move is as follows roughly. (1) add up to total mains switch. (2) press the pushbutton on Control Panel, system of the numerical control that start reachs a machine tool. (3) install and search workpiece. (4) the demand that handles a manual by the machine tool, pass the switch between different operation module, complete the program that makes workpiece cut, adjust electrode silk verticality, move electrode silk to wait for main operation to the dot that wear silk. (5) the treatment parameter with right choice, machining process lieutenant general each parameter is moved optimal comfortable compound condition, make machine stability, achieve quality requirement. (6) after cut ends, take next work. Each measure inspects above the machine tool is different some can omit.
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