MasterCAM software processes medium application in CNC Turning

2 by Lathe (turning) , Mill (milling) , Wire (line cut) with Design (modelling) 4 module composition. Among them big module of Lathe, Mill and Wire 3 has complete three-dimensional model function, they can cooperate to use with Design module already, also can use alone. The main function of MasterCAM has: (1) CAD plot function. MasterCAM can be designed, curve of the editor's complex 2 dimension, three dimensional space, return curve of Cheng of can unripe set prescription. Have function of powerful curved surface modelling and hypostatic modelling function, can use at spare parts surface the detailed design of local appearance, implementation builds a model accurately. (2) imitate machines a function. The emulation of turning of MasterCAM software implementation, milling and line cut is machined, can revise model of spare parts geometry and treatment parameter at any time. Provide relevant treatment case report at the same time, detect the appears possibly collision in machining a process, interference, cut too wait for a problem, the wrong contrail taking a knife when avoiding to be machined actually machines brought loss to the spare parts. (3) function of numerical control process designing. The aftertreatment program that uses MasterCAM software can generate file of method of NCI cutting tool or code of NC numerical control automatically. MasterCAM system itself offerred program of PST of more than 100 kinds of aftertreatments, to different numerical control equipment, can choose corresponding aftertreatment program according to corresponding numerical control system, after postposition handles classics of generated code of NC numerical control to be revised appropriately, make its accord with the requirement that uses numerical control device, can export numerical control equipment, undertake CNC Machining is used. (4) correspond directly with implementation of numerical control equipment. The code of NC numerical control that MasterCAM software generates, in using the communication interface of the computer to export numerical control equipment directly, a large number of OK and economic writing and input the time of the program, improve work efficiency. (5) file management and data switch function. MasterCAM software installed a lot of data converter, wait like ASCII, SAT, IGES, still have the data converter that waits for software in the light of AutoCAD, Pro/E. The user is OK have the file of a variety of types and MasterCAM software database transition. MasterCAM software still contains cutting tool library and material library to wait, make effective treatment becomes very convenient. Below the actual application of 3 MasterCAM software in treatment of numerical control lathe in order to secure an application that processes in numerical control lathe for software of exemple specification MasterCAM. 3.

1 treatment part drawing and treatment craft analysis pursue 1 for " fixed " the cutaway view of part drawing. Its machine craft to be: Car end panel - the circle outside the car - grooving - bore - bore hole - inside thread machining - cut off. Graph 1 " secure " part drawing 3.

The geometry of 2 spare partses builds a model to build the base that the geometrical model of the spare parts is CNC Machining. In MasterCAM lathe treatment, workpiece is swing tower commonly, need to undertake the scale of 2 dimension graph only so, and the half outline of scale spare parts can, the generator that wants scale swing tower only namely can. Those who need a specification is, because be in MasterCAM9.

2 in, the appearance of groove and dimension are OK by " the type parameter of grooving " the content that option blocks will define, the appearance of whorl and parameter are OK by " the parameter of whorl type " the content that option blocks will define, because the geometrical appearance of groove and whorl need not construct when this plot, the start of the diagnostic place that wants draw to give groove only and whorl and terminus can. The φ of the smallest diameter that the outline that whorl is in inside is whorl 27.

6mm. The model of spare parts geometry that final draw gives is shown 2 times like the graph. 3.

Method of clip of 3 affirmatory outfit and system of treatment of turning of MasterCAM of semifinished product dimension can generate a variety of turning to machine method, include whorl of end panel of quick turning, car, thick car, fine vehicle, grooving, bore, car, cut off, the treatment method such as C axis treatment. Before the each model form that processes a system in turning makes cutting tool way, need has working set, the outfit that installs size of semifinished product dimension and chuck namely places the position. Ordinal click [time advocate function] → [cutting tool method] → [working set] option, the system is played piece [the working set of lathe] dialog box. Among them [general set] option card should press acquiescent value to install only can. Be in [attrib border set] in option card, choose Stock [semifinished product] in options group " Left Spindle [left main shaft] " option, set the main shaft direction of workpiece, if pursue,3 are shown. Graph 3 " attrib border set " dialog box Nextpage clicks Stock [semifinished product] the Parameters in options group [parameter] pushbutton, playing go out " Bar Stock (good stuff semifinished product) " club of semifinished product of the setting in the dialog box expects dimension is respectively: Diameter of the circle outside semifinished product is start of 160mm, right end panel to be origin for 110mm, length. In Bar Stock [good stuff semifinished product] in the dialog box, still can tick off choose Use Margins [use brim] option, in order to show the margin of workpiece, the brim of diameter, left and right can be revised in right in inputting casing at the same time. If pursue,4 are shown. Additional, still can click Preview [preview] the appearance of pushbutton observation semifinished product sets a condition, if unreasonable, can be revised or reset. Those who need a specification is, because software just demonstrates the effect of treatment, did not consider turning active force, clip holds the length of workpiece to be able to decide at will; But when processing work actually, because cutting power is very great, the length that chuck clip runs workpiece (the length of semifinished product) must enough long, may bump into workpiece otherwise fly, produce safe accident. Graph after the brim part of 4 indication semifinished product sets the semifinished product size of workpiece, next tasks are to install workpiece collet. The method is: Be in [the working set of lathe] below the dialog box [attrib border set] in option card, choose Chuck [collet] in options group " Left Spindle [left main shaft] " option, set the main shaft direction of workpiece. Click Chuck next [collet] the Parameters in options group [parameter] pushbutton, playing the Chuck Jaw that go out [card is ungual] the figure that the dialog box sets calorie of claw and position. The width that blocks ungual appearance to be able to pass modification card claw and height will finish, if pursue,5 are shown. Like the set of semifinished product, the setting of workpiece collet also can click Preview [preview] the place of collet of pushbutton observation work is proper, if incorrect also can be revised or reset. The position of workpiece collet can decide through inputting collet coordinate directly, also can be in graph of 5 " User Defined [the user is defined oneself] " the numerical value that option manages modification X and Z will decide. The X cost that notes here must be the radius value that is semifinished product fitly. Emulate the effect to make more image is visual, still can choose through ticking off " Shade Boundaries [border adds a shade] " answer choose casing to add shadow effect to semifinished product and chuck. The work semifinished product after adding a shade and chuck appearance are shown 6 times like the graph. Graph the effect Nextpage 3 after 6 collet and semifinished product add a shade.

Method of 4 programs cutting tool (1) end panel machines a setting. Parameter of the choice that end panel machines a setting to basically include end panel to machine cutting tool, cutting tool (basically be feed rate and main shaft rotate speed) the setting of parameter of turning of choice, end panel (the feed that basically has car of thick car, essence, terminus of Z axis treatment) . The parameter of the form that the parameter of other is like turning, razor blade, parameter of hilt, guide / derive direction, can undertake installing by acquiesce commonly. After the setting ends, click " lathe - car end panel " in the dialog box [affirmatory] pushbutton, the system makes the cutting tool way of emulation treatment quickly namely. (2) outside round treatment setting. Round treatment installs the circle outside including outside thick car and outside round fine vehicle two respects. Parameter of the selection that thick car of circle of its China and foreign countries sets cutting tool of thick car of the circle outside basically including, cutting tool (basically be feed rate and main shaft rotate speed) choice, outside the setting of parameter of round thick car (basically have thick car feed, essence of life, and whether to machine groove) etc. Specific means is as follows: A.

In " advocate function " next clicking [cutting tool method] → [thick car] → [string] → [the part is strung] . B.

The element of the first graph that individual choice part strings and final figure element, if pursue,7 are shown. Those who need an attention is, answer to approach the starting point that connects graph element as far as possible when choosing element of the first graph, the choice is the last the terminus that strings graph element should be stood by as far as possible when stringing graph element, graph element won't be strung correctly and play a corresponding warning otherwise. And when be strung correctly, what form string line segment to be able to become yellow, and click advocate of function " carry out " command hind is in start and terminal point to be able to appear respectively an arrowhead, if pursue,8 are shown. C.

Playing go out " lathe - thick car " of the dialog box [cutting tool parameter] thick car cutting tool is chosen in option card, set reasonable cutting tool parameter (cutting speed and main shaft rotate speed) . When thick car because cutting power is greater, cutting speed and inferior main shaft rotate speed wait in general choice (turn for 450-600 commonly / Min) D.

Click [the parameter of thick car] option gets stuck, by the graph 9 show setting thick car to machine parameter. Cutting tool parameter and treatment parameter are the main factor that controls thick car to machine quality and efficiency, because this should notice logical choice. The cutting dosage of different cutting tool is not identical. Generally speaking, when rough machining, cutting deepness is big, cutting power is great also, the cutting tool with a bit bigger diameter should be chosen when choosing cutting tool. Additional, still must have installed when thick car reasonable " obligate is measured " namely finish machining surplus, so that next finish machining. Graph 9 settings " thick car " treatment parameter Nextpage E.

Click [the parameter of thick car] the Lead In/out in option card [guide / derive] pushbutton, can set feed and the way that remove a knife and space respectively. If pursue 10 show with 11. The outside face that guides with what derive the setting contains groove to treatment and inside aperture is very necessary, if do not have a setting, cannot be machined possibly normally or produce the phenomenon such as interference or collision. Graph 10 settings guide into angle and space plan 11 settings derive angle and distance F.

Whether does the setting machine groove and groove to cut way. Click Lead In/out [guide / derive] the Plunge Parameters of pushbutton lower part [cut parameter] , play a Plunge Parameters that the graph shows 12 times [cut parameter] dialog box. The acquiescent parameter of this dialog box is not to machine groove part, one of pursueing namely. Whether can machine groove and groove to cut way according to workpiece appearance setting. If groove is in end panel direction, can choose the 4th; If groove is outer round direction, can choose the 3rd; If end panel direction is mixed outside round direction has groove, choose the 2nd. When outside becoming, round direction has groove, still need to install Dao Kuan to compensate, namely the proper point of view that cutting tool cuts, such ability ensure to interference won't generate when chamfer. Graph 12 groove treatment and " cut parameter " the dialog box installs Nextpage G.

After all parameter setting ends, click " lathe - thick car " in the dialog box [affirmatory] pushbutton, the treatment process that the system demonstrates cutting tool automatically generates corresponding cutting tool contrail to pursue (if pursue,13 are shown) . Graph the setting method of round fine vehicle outside the method of round emulation treatment cutting tool outside 13 thick cars and outside the setting method of round thick car is same, [the parameter of fine vehicle] in option card each parameter and [the parameter of thick car] the parameter in option card is basic also and identical, if pursue,14 are shown. Different is [the parameter of fine vehicle] increase in option card " Number Of Finish " the frequency that inputs casing to use setting precision work. The frequency of finish machining should install the quantity of finish machining obligate after for thick car treatment is finished to divide with " Finish Stepover " the fine vehicle of the set in inputting casing machines feed to measure. Graph parameter of 14 finish machining installs an interface (3) grooving machines a setting. Be in [the cutting tool method of lathe is relevant set] in entree sheet, click [grooving] option, shoot a definition means dialog box that is like the chamfer that the graph shows 15 times. Click by acquiescent value " OK [affirmatory] " pushbutton, choose beforehand the key-press after the feature of scale nods P2, the system plays those who if the graph is shown 16 times,go out " lathe - radial thick car " dialog box. The rough machining parameter of the definition of the geometrical appearance of the set of the alternative that the content of the setting needs to basically have grooving knife here, cutting tool parameter and cutting dosage, chamfer and dimension, chamfer and finish machining parameter (means of direction of safe height, position leaving a sword, treatment, cutting, guide / guide. After the setting, exit a dialog box, can get the treatment way of grooving cutting tool. Graph the definition means of 15 chamfer pursues the parameter of 16 grooving installs Nextpage (4) bore machines a setting. The set of parameter of the choice that bore machines a setting to basically include bit, cutting tool and treatment parameter (next safe distance, knives cutting deepness) set. And " Custom Drill Parameters [typical bore circulates] " install by acquiescent value in the dialog box can. After the setting ends, click " lathe - bore " in the dialog box [affirmatory] pushbutton, be in exit a dialog box while the treatment method of the cutting tool when indication bore. (5) bore hole treatment setting. Machine M30mm × 2mm inside whorl, give a diameter to be the aperture of φ 25mm with broach getting first commonly, bore hole again to diametical φ 27.

6mm. In MasterCAM, bore hole the setting method of treatment and outside the setting method when round turning is machined is same, but because bore hole,of treatment is inside aperture, appear more easily interference phenomenon, because this is in,should choose to bore hole above all knife, next, want to consider the impact of the dimension of the distance between arbor diameter and point of a knife and arbor center line and aperture on one hand, want reasonable setting good cutting tool on the other hand guide / derive angle and distance, avoid collision and the happening that interfere a phenomenon as far as possible. Parameter respect is machined in the setting, the system is to press the dimension of standard cutting tool and appearance to judge what whether collide, can not reflect the condition that machines actually completely; Because be in actual application, can avoid collision and the happening that interfere a phenomenon through repairing the method such as the appearance that grinds point of a knife and arbor. Accordingly, the boring tool with a bit a bit tinier arbor can be chosen when emulating, when arbor comparing can be being chosen to emulate when be being used actually a little a bit bigger boring cutter; And in the Cheng that makes cutting tool way, when occurrence graph when 17 shown hint, oversight collision hints, choose " Yes [be] " option, let a system make cutting tool way, generate finally bore hole the graph of cutting tool contrail of thick, finish machining is shown 18 times like the graph. Graph clew of collision of 17 cutting tool pursues 18 bore hole the cutting tool contrail of treatment pursues (6) thread machining setting. MasterCAM lathe module has complete thread machining function, include function of bull thread machining, whorl to check watch function and whorl straight without consulting anyone to move computational function to wait. Parameter of cutting of the definition of parameter of type of the set that thread machining sets parameter of the option that basically includes whorl sword, cutting tool and cutting dosage, whorl, whorl (deepness of thread machining instruction, cutting, frequency taking a knife, safe distance, guide angle, introduce length and surmount length to wait) set. In " [the parameter of whorl type] " whorl parameter can be defined in the dialog box (if pursue,show 19 times) . "Lead " the pitch that inputs casing to use setting whorl, two kinds represent a means, should choose " tooth / Mm " when option, the input value in inputting casing expresses to be a number of the whorl on every millimeter length; Should choose " Mm/ tooth " when option, the input value in inputting casing expresses to be the pitch of whorl. "Major Diameter " input casing is used at setting whorl old way, "Minor Diameter " input casing is used at installing whorl trail, "Thread Depth " input casing is used at installing tooth form height; These 3 parameter should be inputted only among them two, the 3rd parameter comes out with respect to can automatic computation. Accessibility also " formulary computation " dialog box, the input is basic after old way and pitch, the system is calculated automatically a whorl trail and tooth form height. Additional, after deciding when the pitch of whorl, between main shaft rotate speed and feed speed, also require an input only among them a parameter, another parameter comes out with respect to automatic computation. After the setting is finished, click " lathe - car whorl " in the dialog box [affirmatory] pushbutton, be in exit a dialog box while the cutting tool way that makes thread machining automatically. Graph Nextpage of dialog box of parameter of appearance of 19 settings whorl (7) cut off treatment setting. Should choose " cut off " when the command, the system can hint above all " cut off: Choose attrib border place please " , right now importable the coordinate that shears a point, also can choose a position of rest that the point that has existed will come to define turning. After the choice ends, the system is played piece " lathe - cut off " setting dialog box. Here, the system will be acquiescent the grooving knife that uses radial turning, but the length as a result of grooving knife is lesser, because this must choose afresh,cut off a knife. Cut off treatment setting and grooving treatment setting are basic and same, the option that basically includes to cut off a knife, cutting tool parameter (the set of bit dimension parameter and hilt dimension parameter) the set that reachs cutting dosage, cut off treatment parameter (X of terminus of the safe height, radius that retreat a knife, treatment to the position, right knife spot position, every time feed distance, guide. After the setting ends, exit a dialog box, can get cutting off the treatment method of cutting tool. But have must notice at 2 o'clock: The first, because the semifinished product diameter of workpiece is bigger, cutting tool must be installed to have enough length when the choice cuts off a knife. If the graph is shown 20 times, because the semifinished product diameter of workpiece is φ 110mm, the dimension setting of reason C is 60mm; Graph the parameter of 20 hilt is installed the 2nd, when be machined actually, it is to be in outside treatment when the circle normally, will cut off the position outside round face also is machined along with all the others, when cutting off, end from finish machining directly outside round face place begins to machine, power gets when making grooving cutting tool cuts work on one hand so even, because retreat a knife,be in in terminus when the circle outside also won't making machine on the other hand and leave next burr. 3.

The imitate of cutting tool method of 5 spare partses and hypostatic cutting are emulated when having the setting in front, masterCAM will found a group to include " treatment parameter information " , " information of treatment cutting tool " , " graphical information " and " NCI file information " the information that waits for 4 content is unit, a such unit is an operation. After setting way of good treatment cutting tool, the substance that uses MasterCAM system to offer machines imitate function, can watch the process that cutting machines, detect the setting of craft parameter is reasonable, the spare parts is in whether is numerical control put in interference in effective treatment, the validity of method of cutting tool of test and verify. In the dialog box that the graph shows 21 times, showed all operations, can undertake editing modification to every listed operation, till satisfaction. Still offerred in the dialog box at the same time " Backplot [imitate of cutting tool method] " , " Verify [function of hypostatic test and verify] " and " Post [postposition is handled] " wait for option, realize specific operation. Should click " Backplot [imitate of cutting tool method] " when option, operation management implement disappear, be in at the same time advocate the menu that if the graph is shown 22 times,appears in function, the imitate of cutting tool method that can have each unit here (when undertaking imitate of cutting tool method, the treatment that chooses to want to check only is unit can) , also can undertake imitate of all unit cutting tool method; Can the hand uses control, OK also automata; Can control whether to show cutting tool, show whether treatment method, chromatic test and verify; OK still the parameter that set method imitate shows. Click " Verify [function of hypostatic test and verify] " when, can undertake hypostatic cutting emulates treatment, after analyse cuts material, also can undertake emulation machining again, two kinds of effects are like a graph respectively 23 with the graph 24 are shown. The imitate of cutting tool method of the spare parts and hypostatic cutting are emulated, in actual production leave out tries cut working procedure while return what can reduce material to use up, improved manufacturing efficiency greatly and reduce manufacturing cost. Graph 21 operation management implement 22 of graph of dialog box Nextpage " imitate of cutting tool road " menu pursues graph of effect of emulation treatment of 23 hypostatic cutting pursues after 24 analyse cut material, hypostatic cutting emulates treatment effect to pursue 3.

6 after generating numerical control to dictate code and program transmit imitate to machine, the setting of all sorts of parameter does not have any problems, with respect to the postposition that can use MasterCAM processing program makes NCI file or NC file, NCI file is file of CNC Machining information, this is before making file of numerical control program transfer file; NC file is document of final and effective numerical control program. If machine tool system and the system with acquiescent MasterCAM (it is FANUC system commonly) abhorrent, be in even the graph cancels option in 25 shown dialog boxes " Edit [editor] " option, the reexport after the program that such generating can edit further arrives numerical control equipment, undertake CNC Machining is used. Graph 26 make a living but editor. Graph dialog box of 25 aftertreatments program pursues 26 those who generate but 4 last words pass editor above is right the functional introduction of MasterCAM software and its machine medium actual application example in numerical control lathe, can see, masterCAM software basically has in the application of lathe module: The outline graph of ① scale spare parts; ② sets cutting tool and treatment parameter according to part technological process, get cutting tool way; The imitate of cutting tool method of ③ spare parts and hypostatic cutting test and verify; ④ undertakes postposition is handled, make file of effective numerical control program. The CAM function of use MasterCAM software generates numerical control code, transmit to numerical control equipment, handlers needs to input cutting tool parameter only, can undertake according to the program that has woven the spare parts is machined. Reduced the workload of process designing personnel greatly not only, more shortened manual process designing on lathe debug time, improved work efficiency, especially complex to a few appearance part, come true very hard with manual process designing, can finish easily in MasterCAM software. And after model of spare parts geometry or treatment parameter are revised, masterCAM software can be rapid replace corresponding cutting tool method automatically well and truly, need not be redesigned and method of computational cutting tool. Can increase production greatly so efficiency, reduce manufacturing cost, raise automation rate of production. CNC Milling CNC Machining