Heidenhain tnc 145c 3-axis tnc contouring control

Heidenhain tnc 145c 3 axis tnc contouring control

The 3-axis TNC contouring control from HEIDENHAIN Contents TNC 145 C Basic features TNC 145 C Keyboards and displays Línear interpolation/single axis milling Tool compensatíon Calculation of intersections/transitional areas Po1ar co-ordinates/Circular interpolation Rounding of corners Tangential contour approach Canned machining cycles Subprograms Program edíting Entry supervísíon/Program test run Continuation of program run after an interruptíon Fault/error diagnosis Magnetic tape cassette unít Geometry-programs Electronic handwheel TNC 145 C Specífications Dimensions Vísual display unit/Control Magnetic tape cassette unit Electronic handwheel TNC-Controls from HEIDENHAIN subsídiaries and agencies TNC-Controls from HEIDENHAIN The TNC 145 C actually communicates TNC 145 C is shop floor-programmable. To provide for direct shop floor-programming, program format purposely deviates from the 1S0-standard by dispensing with G-functions. TNC 145 C speaks English, German, French, Italian, Spanish, Portuguese or Swedish. A control designed for the machine tool operator Layout and designation of operating keys conform to the functions and are dialogue orientated. The operator can master the control in the shortest time. Keys are arranged in clearly defined groups Line for programming dialogue and fault/error display Preceding program block Current program block Editing line Next program block Successíve program block Status-Display for tool data, spindle speed, datum shift, mirror image, circle centre co-ordinates and cycle called. Entry value display for checking entered values before transfer into the program Keys for contouring functíons Linear interpolation Rounding of corners Circle centre Circular arc Operating mode keys cont. operatíon: Block-by-block positioning with individual press of START-button. Automatic program run: After press of START-button, complete run of program sequence until programmed STOP or program end. Linear interpolatian TNC 145 C permits milling of diagonal paths in any plane XY. XZ or YZ. Too1 length and radius aгe automatically taken into account. Single axis milling The most frequent machining operation - single axis milling - can be programmed either via linear interpolation or as in the following example: Programmíng example for síngle axís míllíng: -key: Dialogue is TNC 145 C asks for position value initiated and then tool radius compensation Enter data TNC 145 C asks for feed rate Eiiter data TNC 145 C asks for auxiliary M -functíon Enter daia TNC 145 C indicates Ъ1ock complete Tool compensation: Drawing dimensions can be programmed directly The TNC 145 C calculates the actual tool path from the programmed workpiece contour and tool compensation data, so that most dimensions can be transferred directly from the drawing into the program. The TNC 145 C stores the tool number, too1 radius and length with the tool definition. Calculation of intersections/transítional ares 1 contouring operation, the TNC 145 C also calculates the tool path for discontinuous transitions of contour corners. For this, the control allows for the tool dimensions and ensures that the contour is not interrupted even at tricky transitions. Calculation of intersections for internal corners.

programmed contour contour Insertion of transitional areas on external corners. Polar coordinates With TNC 145 C, nominal positions for When changing to polar coordinate There are two possibilities for definition workpiece machining may be either programming, the zero-datum last de- of the pole datum point for polar programmed in right-angled Cartesian fined in the Cartesian system is coordinates: coordinates or in polar coordinates retained. specification of radius and angle . This - Entry of Cartesian coordinates of permits entry of most drawing dimen- the pole or sions into the program without prior - Entry of the previous nominal conversion. position as pole. Example An advantage of polar coordinate programming is with hole pitch circles. 60 X 70 Polar radius PR = 50 Polar angle PA = 300 incremental Pole coordinates XP = 70; YP = 60 Programming with polar coordi- nates Definition of the pole First possibility The pole is defined by entry of its Cartesian coordinates XP and YP. Second possibility The last nominal position S1 is entered as the pole by pressing the -key. Programming of target position The nominal position S2 is pro- grammed via the polar radius PR and directional angle PA. Circular interpolation With TNC 145 C, circular paths can be milled in any of the planes XY, XZ, or YZ. Tool length and radius are auto- matically taken into account. The circle is defined through:

the circle center and the two end positions of the arc or

just the radius when the arc is to make a tangential transition into the subsequent contour Rounding of corners see page 12. Programming example for entry of a circle center -key: Dialogue is initiated TNC 145 C asks for coordinates of the circle center

Enter coordinates of circle center TNC 145 C indicates block complete Programming example for circular arc -key: Dialogue is initiated TNC 145 C asks for coordinates in of the end-position for circular path

When programming with polar coordinates, TNC 145 C asks for the circle radius and directional angle. Enter coordinates of end position TNC 145 C indicates block for circular path complete Rounding of corners with the press of a key The application of radii to contour When milling, the cutting tool moves corners is conveniently programmed tangentially from a straight path or with the TNC 145 C. circular contour into the required If a radial arc is to be applied at the rounding-off radius. intersection of

two straights

a straight and an arc or

two arcs, only the rounding-off -key has to be pressed and the rounding-off radius entered. Programmed intersections of straights Tangential contour approach With the TNC 145 C, tangential contour approach can be programmed easily and fast. Surface blemishes are prevented. In the example below, the center of the circle is programmed first. Then the starting position, point of contact, and approach radius are entered. No further programming is required position Approach  radius Point of contact Departure radius Canned machining cycles simplify programming Rectangular pockets TNC 145 C asks for: SET-UP CLEARANCE? MILLING DEPTH? WOODPECKING DEPTH? First side length second side length FEED RATE FOR PECKING? FIRST SIDE LENGTH? SECOND SIDE LENGTH?  FEED RATE Woodpecking depth Milling depth V/J Certain frequent machining operations data total hole depth, set-up are programmed as fixed canned clearance or feed rate. This means a cycles. substantial reduction of programming time as well as simplified program The operator selects the appropriate entry. Programming errors are mini- cycle, and the TNC 145 C asks for the mized. necessary geometric and technical setup clearance Woodpecking depth Datum shift Mirror image Dwell time This cycle serves for This cycle reduces the number of co- This cycle is used for chip breaking fast programming of geometrical ordinates to be entered for axis-symme- before tool retraction: patterns that are identical trical workpiece positions: pockets, slots, or hole patterns with an axis of symmetry for halving with the same dimensions . The dimen- or sions of the patterns only have to be with axes of symmetry for quartering. entered once. Convenient subprogramming reduces programming time The TNC 145 C offers the possibility of Furthermore, it is possible to repeat labeling sections of the program as program parts several times one subprograms, the milling of after the other up to 65535 times . repetitive contours. These subpro- grams can then be retrieved at any location within the program: Machining sequences that occur several times only have to be programmed once. subprogram nesting 3 subprograms can be nested up to 8 times Main program Subprogram 1 subprogram 2 etc. Subprogram 8 Program part repeats Program parts, which are to be repeated several times one after the other, are also allocated with a label number. The main program is worked through until CALL LABEL From here, a jump is made back to number of program part repeats is the label number. The specified in the LBL CALL-dialogue. Simple error correction Programs can be easily edited and The operator can amend single words or F of a certain random block. When amended. within the block, insert new blocks or the paging keys O or Q are For this, 5 editing keys are provided delete blocks. pressed, only those blocks containing Call-up of certain block Search routines help the operator to the desired information criteria are dis- O Jump to next block: find those blocks which contain played. Program paging blockwise certain criteria. This is performed by O reverse paging merely shifting the cursor to the shifting of editing cursor to the left beginning of a program word to the right E Example for block correction Set cursor to word The cursor appears before the which is to be amended block-word address 

Key-in required word The required word appears in negative characters and can be, transferred into the program. SECOND COORDINATE. 

Example for search routine O Set cursor to desired The block-word address appears word-address in a bright field 

O Press paging key The next block containing the word being searched for is displayed. 

Safe operation through comprehensive entry supervision The TNC 145 C makes the operator - test run without machine movement, aware of programming and operating - test run with machine movement in errors thus ensuring programming rapid traverse and with clamped safety. axes. Two test runs can be performed for programs: Entry errors and errors of program logic are displayed via plain language dialogue in the visual display unit. Entry supervision Examples of entry errors CALL LABEL 0,5 ENTER RULE INCORRECT LABEL NUMBER

With LABEL, only whole numbers permitted. Program-Test run Examples of programming errors Programmed contour Programmed tool radius Programmed rounding-off radius Programmed contour- Programmed starting position of arc Programmed
contour 

Programmed circle center Programmed end position of arc 18 Continuation of program run after an interruption After interruption of program run, for measurements, tool change etc., all important program data is retained in the TNC 145 C memory. Continuation of program run is there- fore uncomplicated. Continuation of program run after a measuring procedure Interruption of program run Back-off tool to enable workpiece measurement Measure workpiece Return traverse to contour Continuation of program run 19 Fault/Error indication The TNC 145 C not only monitors its Fault indication is displayed in plain own functioning, but transducer and language in the visual display unit certain machine functions are also VDU. under constant supervision. the maintaining of the programmed feed With serious faults, the control activates rate or standstill position of machine the emergency stop of the machine. axes. In total, the TNC 145 C monitors some 60 different sources of error. Monitoring of drives trailing error 0 Supervision of external electronics: Supervision of TNC-electronics: supervision : EMERGENCY STOP TNC-OPERATING TEMP. EXCEEDED GROSS POSITIONING ERROR RELAY EXT. DC VOLTAGE MISSING EXCHANGE BUFFER BATTERY POWER INTERRUPTED SPINDLE INTERLOCK DEFECTIVE TNC-ELECTRONICS DEFECTIVE Spindle rotating direction not Supervision of magnetic tape programmed: cassette unit ME: SPINDLE ROTATES MISSING EXT. INPUT/OUTPUT NOT READY ME: WRONG PROGRAM DATA Transducer supervision: ME: CASSETTE MISSING DEFECT ON Y-MEASURING SYSTEM ME: CASSETTE LOCKED 20 Magnetic tape cassette unit: Storage of machining programs The Magnetic tape cassette unit is Via the interface connection of the ME 101: Portable unit for alternate use used for TNC-loading and long-term Magnetic tape cassette unit, normal on several machines. storage of machining programs. commercially available peripheral units data printer, tape puncher/reader ME 102: Pendant mounting unit for Only one program can be stored on unit can be utilized. permanent installation into one each cassette thus ensuring clarity machine. within the program library. The Magnetic tape cassette units are available in two versions: Accessories Adaptor cable: If the TNC is incorporated into a machine pendant, then the adaptor cable leads from the TNC 145 C to the pendant housing the data transfer cable then connects the adaptor cable via a connector to the ME 101. Connecting cable For direct connection of the ME 102 to the TNC 145 C. Connecting cable If the ME 102 is incorporated in a machine pendant, then the connection cable leads from the data output to the housing of the machine pen- dant. Magnetic tape cassettes for ME 101/102 21 Geometry-programs for conversion of drawing dimensions into TNC-entry values The calculation of contour positions - Co-ordinates of intersections, angles, The calculation of contour po- either in the design department, the radii or points of contact can be easily sitions is easy: planning department or on the shop determined with 15 various geometry 1. The desired program is selected via floor - can present rather difficult geo- programs. the keys A to J. metrical problems with complex work- Programs are read into the HP-41 CV 2. Known data is requested by the ca1- pieces. memoгy by HEIDENHAIN either at the culator via brief dialogue and entered. HEIDENHAIN offers a simple and inex- Traunreut manufacturing plant or by The HP-41 CV then calculates and dis- pensive solution to such problems: one of the service facilities. Programs plays the required parameters. Geometry software for the Hewlett are permanently stored even during Packard pocket calculator HP-41 CV. battery change. Example for calculation of tangential points The circles K1 and K2 are given. The tangential points of contact P1 and P2 of a third arc K3, with a given radius, are to be determined. The calculation of the points of contact is already stored within the pocket calculator as a geometry-program. The required co-ordinate values can there- fore be rapidly determined without problems. Electronic handwheel: Fast and precise set-up The electronic handwheel ensures fast The axis address keys are used for The handwheel is available in two and precise setting-up operations. switchover of the handwheel to the versions: required axis. The traversing speed can HR 150 Electronic handwheel for With rotation of the handwheel, the Ьe reduced to as 1ow as mm per incorporation into the machine pendant. axis drive traverses the appropriate handwheel-revolution for very fine HR 250 Portable handwheel in machine slide. setting operations. protective soft-plastic housing with magnetic mounting facility. 23 Technical description/Specifications Control type Shop floor-programmable continuous path control for 3 axes 21/s D with 3 positioning loops. mm/inch instant conversion for entry values and displays Entry step up to mm or inch or Display step mm or inch or mm or inch on optionOperator-prompting Visual display screen 9 inch with max. 14x32 alphanumeric characters and displays Plain language dialogue and fault/error indication in various languages Display of current program block including previous block and two successive blocks Additional displays for position values X, Y, Z and entry values Program memory Buffered semiconductor store for 1000 program blocks Operating modes Manual operation: the control operates as a digital readout Positioning with MD1: positioning block is keyed-in without entry into memory and immediately positioned Program run in single block: block-by-block positioning with individual press of button Automatic program run: after press of button, complete run of program sequence until programmed STOP or program end. Programming a with linear or circular interpolation Manually with stationary machine to program sheet or workpiece drawing or externally via the data transfer connection via Magnetic Tape Cassette Unit ME 101/ME 102 from HEIDENHAIN, or other compatible peripheral unit b with axis-parallel operation additionally by entering actual position data actual values from position display playback during conventional manual machining. Programmable functions Nominal position values absolute or incremental dimensions, entry in Cartesian coordinates or in polar coordinates, Straight path 21/2 D Ares max. radius: mm Rounding of corners derived from straights or ares Tangential approach, on a circular path, to a defined point on a contour. Tool number, length and radius, offset direction for tool radius compensation Rapid traverse/feed rate in mm/min Auxiliary functions M00 ... M99 Spindle speeds 2-decade BCD STOP subprograms 8 x nesting Program part repeats Fixed machining canned cycles: Pecking, Tapping, Slot milling, Rectangular pocket milling, circular pocket, Mirror image, Datum shift, Dwell time, Three dim.-line without tool radius compensation Program test run a stored program can be checked without machine movements. 24 Program editing through editing of block-word information, insertion of program blocks, deletion of program blocks; Search routines for finding blocks with common criteria Monitoring system the control monitors the functioning of important electronic subassemblies including positioning systems, transducers, spindle locking mechanism and emergency stop-circuit. If a fault is discovered via this monitoring system, it is indicated in plain language on the visual display screen VDU and the machine emergency stop is activated. Program run continuation the control simplifies continuation of program run by storing all important after interruption program data. Reference mark evaluation After a power failure, automatic re-generation of datum value by traversing over reference marks of transducers Max. traversing distance mm Max. traversing speed 10 m/min. 396 inch/min. Feed rate and Potentiometer on TNC 145-control panel rapid traverse override Transducers HEIDENHAIN incremental linear transducers or rotary encoders Grating pitch mm or mm or mm Control inputs Transducers electronic handwheel START, STOP, Rapid traverse Verification; Auxiliary function completed Feed rate release Manual activation opens positioning loop Verification; emergency stop-supervision Reference end position X, Y, Z Reference pulse suppressor Direction buttons External feed rate potentiometer Control outputs 1 analogue output each for. Axis release Control in operation M-strobe signal S-strobe signal T-strobe signal 8 outputs for, and T-functions coded. Coolant OFF Coolant ON Spindle counterclockwise Spindle HALT Spindle clockwise Spindle lock on Control in automatic operating mode Emergency stop Mains power supply Selectable Power consumption ca. 60 W incl. VDU Ambient temperature Operation Storage Weight TNC 145 C: kg , Visual display unit: kg . Dimensions Visual display unit Magnetic tape cassette unit ME 101 ME 102 HR 250 holder magnet length of front plate Electronic handwheel TNC-Controls from HEIDENHAIN Continuous Path Control 3 axes, instant conversion Finest entry step or Display step or Operating modes Manual operation the control operates as a digital readout Electronic handwheel for setting switch-over between the 3 axes Positioning with MD1 positioning block is keyed-in without entry into memory Program run in single block operation block-by-block with individual press of START-button Automatic program run after press of button complete run of program sequence Programming Program entry Single axis operation: Manually with stationary machine to program sheet or workpiece or simultaneously to machining of initial workpiece or during conventional manual machining operation or externally via the data transfer connection via Magni Linear or circular Manually with stationary machine to program sheet or interpolation workpiece drawing or externally via the data transfer connection ME 101/102 from HEIDENHAIN Programming of Nominal position values absolute or incremental dimensions in: Cartesian coordinates Polar coordinates with tool radius compensation Paraxial traversing D-straight cut with tool radius compensation Circular areas Rounding of corners derived from straights or areas Tangential approach, on a circular path, to a defined point on a contour Three-dimensional line, without tool radius compensation Spindle speeds 2-decade BCD Feed rate/rapid traverse or contouring speed in mm/min. or inch/min. Tool length and radius compensation Tool numbers Auxiliary functions M Subprograms 8 x nesting Program part repeats Fixed programmed canned cycles: Pecking, Tapping, Slot milling, Rectangular pocket milling, Circular pocket, Mirror image. Datum shift, Three-dimensional line, Dwell time Program run interruption All important program data is stored for program run continuation Program test run For checking stored program without machine movements Program block display and plain Visual display unit: language dialogue Current block including preceding block and two successive blocks max. 14x32 characters Program storage capacity 1000 program blocks, buffer battery backup TNC 135 TNC 131 TNC 125 Straight Cut Control 3 axes, instant conversion Finest entry step or Display step or Feed rate/rapid traverse in mm/min. Feed rate in o of max. axis or inch/min. feed rate Stop 3 x nesting LED-line: Complete block Block number/block content max. 8x32 characters max. 32 alphanumeric characters max. 16 alphanumeric characters 500 program blocks or 1000 program blocks optional, buffer battery backup 400 program blocks, buffer battery backup Addresses HEIDENHAIN-Sales offices Federal Republic of Germany Dr. Robert Car1 Denmark Norway NansenstraI e, Traunreut W. 6 Lissabon  Post Box SF-00380 Helsinki 38 1ng. grad. Rolf Renner Singapore Traunreut Heidenhain Pacific Ltd Neuss Singapore Neumo Vargus Farresa Bilbao Tel Aviv Madrid Stockholm Wedel India Heidenhain Pty Limited Madras Johannesburg Israel Scandinavia Italy Austria Robert Carl Traunreut Heidenhain Schweiz Japan South Africa Belgium France Sèvres Telex Christoph Woltmann Spain Marketing Ltd Farre Bilbao Tel Aviv Sweden Italy A. KARLSON INSTRUMENT AB Abroad Heidenhain Italiana Stockholm-Bromma Dr. Robert Carl Traunreut Heidenhain Heidenhain Japan Belgium Heidenhain France Sèvres Telex Christoph Woltmann South Africa Heidenhain Pty Limited Madras Johannesburg Spain NEUMO VARGUS FARRESA Marketing Ltd. Bilbao Tel Aviv Sweden Italy A. KARLSON INSTRUMENT AB Abroad Heidenhain Italiana Stockholm-Bromma Austria Dr. Robert Carl Traunreut Heidenhain  Christoph Woltmann South Africa Heidenhain Pty Limited Madras Johannesburg Spain NEUMO VARGUS FARRESA Marketing Ltd. Bilbao Tel Aviv Sweden Italy A. KARLSON INSTRUMENT AB Abroad Heidenhain Italiana Stockholm-Bromma Brazil Veenendaal Sao Paulo Elk Grove Village Telex DR. JOHANNES HEIDENHAIN GmbH