DP-4 Touch Probe
Contents
1. SCREW CLOCK WISE MOVES THE SCREW IN CAUSING THE PROBE BODY TO MOVE OUT 2 TURNING THE SET SCREW COUNTER CLOCK WISE Cj MOVES THE SCREW OUT CAUSING THE PROBE BODY H TO MOVE IN _ Run out Adjustment set up and effect of Set Screw Movement STEP 5 Rotate the spindle by hand without touching the probe so that the probe spins through a full 360 degrees and watch the dial indicator to locate the high and low run out rotation positions of the stylus Adjust the dial indicator so that the entire run out of the tip can be seen on the dial If the run out exceeds the range of the dial then begin at the highest point of the run out and set the dial indicator so it is at the limit of its range at this point STEP 6 Rotate the probe so that the nearest run out adjustment set screw is above the finger tip of the indicator Using the 3 32 hex wrench slowly turn the setscrew directly above the indicator finger in the counter clock wise direction the dial indicator will show the reduction in the run out Stop loosening this set screw and tighten the set screw that was nearest the low run out position Do not allow the probe to become loose on the mounting shank STEP 7 Repeat steps 5 and 6 until no run out of the tip is visible on the dial indicator needle If the screws become too tight before you have finished the adjustment do not force them instead loosen the setscrew that corresponds with the highest reading on the2. a line at the beginning of the program that contains M3 spindle clockwise or M4 spindle counter clockwise followed by an S with the speed you want to turn the spindle at The following is an example M3 S4000 This will turn the spindle on going clockwise at 4000 RPM To turn the spindle off when the program finishes put a 5 at the end of the program You can also use the text editor to turn coolant on and off by adding M7 MIST or M8 FLOOD at the beginning of the program and M9 COOLANT OFF at the end Remember you can have only one M code per line in the program To enlarge shrink or mirror your part you can use the G51 turns on scaling and G50 turns off scaling commands refer to your user manual for the complete description and definition of these G code commands When enlarging or shrinking your part using the G51 command remember you must scale the size of the cutter you are going to use to cut the part by the same factor that you use to scale your part For instance if you digitized a part with a 0 25 stylus and scale the part up by 2 then the cutter needed to cut the part would be a 0 5 diameter cutter Conversely if you scale the part by 4 then the cutter diameter needed would be 0 125 You can also import your digitized data into an online CAM program on your Centroid control or export it to an offline CAM system The Dig to CAD menu in the Digitizing screen is used to convert the digitized data to a for
3. dial indicator refer to figure 3 2 and tighten the set screw at the lowest reading Only adjust a set screw when it is directly above the indicator finger This way you can see the full effect of the adjustment you are making WHEN TO CHECK RUN OUT Any time the probe is removed from its holder the stylus is changed or the probe is used in a different machine the alignment procedure should be repeated to ensure accuracy The user should also repeat the alignment procedure if the unit is dropped or receives any sudden external shock It is good practice to periodically check alignment for quality control and to establish a base line maintenance schedule ANGULAR ALIGNMENT Angular alignment is the relation of the spindle center line to the stylus stem center line This adjustment provides for equal clearance all around the stylus stem This adjustment is rarely needed except when extremely small or long stylus is used When the stylus tip and stem are nearly the same diameter this adjustment is critical to keep the stem from contacting a vertical surface before the tip This adjustment is also convenient to adjust parallelism when flat disc or block stylus types are used The range of adjustment is very small as it is only intended to correct the stylus and spindle center line continuity If this adjustment must be performed use the run out adjustment set up shown above to monitor the effect of the adjustment The angular alignment and run out adjus
4. speed Machine characteristics can drastically reduce the confidence level in this specification A probe installed on a CMM has a much better chance of producing the stated tolerance than one installed on a mill since the machine errors add to the probe error That said mill installations can still produce results well within the tolerances allowed for machining if the mill is kept in good operating condition MAINTENANCE AND CARE Do not submerge or expose the DP 4 to liquids Wipe off any liquids immediately to prevent internal contamination or degradation of the rubber seal and indicator lens The probe body is stainless steel and should only be wiped clean with compatible cleaners Storage When not in use store the probe in a vertical or inverted vertical position not on its side This minimizes stress on internal mechanical parts and distributes lubrication more evenly Do not ship or store the probe with the stylus mount boss pushed into the probe body as this will negatively affect internal lubrication User repairs The DP 4 has no internal user serviceable parts or adjustments and should only be serviced by Centroid Alignment adjustments Regularly check alignment Any time the probe is removed from its holder the stylus is changed or the probe is used in a different machine the alignment procedure should be repeated to ensure accuracy The user should also repeat the alignment procedure if the unit is dropped or receives any sudde
5. that give you the finish and detail level you are looking for in the final part Remember the Centroid control can digitize unattended 24 hours a day 7 days a week if you really need the detail and finish just remember to fill the automatic oiler tank The third factor that affects the time it takes to digitize a part is the density and height of the surface detail The more vertical walls the probe stylus must climb up and down over the longer the digitizing will take This is not a factor you have much control over except for adjusting your Z stepup distance but in general this will have little effect Finally if the piece is odd shaped you may want to patch several small digitizing runs together and there by eliminate the wasted time that would be spent moving over areas that are not pertinent to the data you want to collect CUTTING COPY OF DIGITIZED PART TIPS The following are some tips on using the data from your completed grid digitizing run The nomenclature procedures and programs used are consistent with the Centroid TM operators manual Consult your operator s manual for equivalent When you are ready to cut a copy of the part you have digitized set your part up using the same X Y and Z coordinate you used to digitize the part The digitizing program does not put in the M codes and spindle speed setting You must either turn the spindle on manually or edit the G code file and insert this information Simply insert
6. the tool library will not produce accurate results unless they are corrected for stylus pre travel Pre travel is the amount of deflection of the stylus tip before the probe detects the surface This value varies depending on the length of the stylus and the speed and direction that the stylus tip is moving when it makes contact with the surface being probed or digitized Pre travel variation amount should be stated in probe specifications relative to stylus length and direction of travel limitations A probe that has small pre travel variation with no restriction on stylus length and direction of travel will be quite expensive Machine characteristics including lash and input latency also contribute to the need to calibrate the stylus diameter In order to achieve optimal results when probing or digitizing you must calibrate the tip size to compensate for the sum of the effects previously mentioned The following procedure is the quickest way to determine the calibrated diameter This procedure uses Centroid TM automatic probing cycles Consult your operation manual for similar probing cycles for your machine STYLUS DIAMETER CALIBRATION PROCEDURE STEP 1 On the mill table fixture the precision ring gauge from the probe tool kit The ring must lie flat with the center line of the bore aligned with the center line of the probe stylus Note the diameter of the gauge STEP 2 Jog the probe over the center roughly of the ring gauge and then slo
7. CENTROID DP 4 Touch Probe Operator s Manual U S Patent 6553682 Rev 2013 09 23 Copyright 2003 2013 Centroid Corporation Howard PA 16841 DP 4 Quick Start Guide l 2 99 Install MPU11 Probe cable assembly 11085 if necessary Refer to Common Cables picture page 11 connection diagram on page 12 and appropriate appendix data Connect coil cord to DP 4 and to bulkhead connector on probe cable assembly 11085 See probe features and general description page 1 LED indicating light should be green when connection is made then turn red when stylus mount boss is touched Set system control parameters See Table of Contents to locate application specific appendix See Output Switch Logic Selection page 5 if application requires a normally closed probe output connection Confirm machine is responding to DP 4 input by running an automatic cycle without the probe in the spindle and manually touching the DP 4 stylus mount boss Refer to control operator s manual for automatic probing cycles Install the DP 4 and tool holder in the spindle then install the stylus in the DP 4 See Stylus installation procedures on page 3 and perform run out adjustment as shown on page 3 and 4 Review stylus travel limits on page 2 and follow the detailed initial setup on page 6 to perform an automatic probing cycle at reduced speed Calibrate stylus tip size See procedures on page 6 Review Performance Characteristics page 8
8. ENERAL DESCRIPTION The DP 4 is a touch probe intended for probing to find part zero s reference positions locate bores bases corners etc and digitizing which allows for the copying of surfaces and shaped objects The user should first become familiar with the various parts and features of the probe as shown above to facilitate assembly installation and calibration Read the stylus installation and alignment procedures section before attempting assembly Review the over travel limits shown in the specifications Exceeding the limits will damage the probe and stylus MOUNTING FEATURES The mounting shank design allows installation in the spindle of most machines Other mounting options are easily installed by loosening the run out adjustment screws and removing the shank from the body These options include smaller diameter shank or magnet or custom made forms OUTPUT FEATURES The output is a virtual switch connected to ground that can be configured for normally open or closed logic This choice can be specified when ordering or can be changed by the user via an internal jumper block that is accessed by loosening the run out adjustment screws and removing the mounting shank The state of the switch changes when the stylus physically touches a surface The DP 4 can be easily interfaced to any CNC control which accepts this common type of switch input signal A high quality 5 pin connector through the probe body provides a convenient di
9. LUTE LIMITS 30 VDC 50MA svn software hardware DP4 DOCS WIRING_DIAG 2 20 2013
10. PROBE OUTPUT SIGNAL CONTROL INPUT PROBE OUTPUT SIGNAL ee gt TYPICAL INPUT WITH PULL UP RESISTOR USE N C JUMPER TO INVERT LOGIC THIS CIRCUIT PROVIDED BY END USER ISOLATED JUMPER TO INVERT THIS CIRCUIT PROVIDED BY END USER NOTES PROBE BODY NOT CONNECTED TO SHIELD OR SUPPLY COMMON AT PROBE PROBE STYLUS MOUNT BOSS IS CONNECTED TO SUPPLY svn software hardware DP4 DOCS WIRING_DIAG AND SIGNAL COMMON PROBE OUTPUT ABSOLUTE LIMITS 60 VDC 200MA OET 9 07 2012 GRID DIGITIZING TIPS Digitizing is by its nature a slow precise process The time it takes to digitize a part is effected by four factors feedrate step size detail density and over all shape of the object The feedrate settings in parameters 14 and 15 the fast and slow probing rates As a general rule of thumb parameter 14 should be set to 20 or 30ipm for digitizing and probing This setting will not affect the accuracy of the digitizing data but will speed up the approach cycles during the digitizing run and there by reduce the time the run takes Parameter 15 however does have a direct effect on the accuracy of the digitizing data and should be adjusted to match the tolerances you are calling out for the finished part Typically setting this parameter slower will yield more accuracy and faster less accuracy The accuracy achieved on vertical surfaces is also dependent on stylus length and related PTV pre tr
11. Probe complete kit with protective case and accessories Inset shows outside of case Kit contains the accessories shown above plus the retractile coil cord p n 10394 Complete kit p n 10395 COMMON CABLES The photo below shows the DP 4 connected to the primary cable assemblies common to all installations Note the bulkhead connector to provide physical support for the coil cord No additional adapters are needed for new Centroid TM systems See the appropriate appendix in the DP 4 manual for additional required adapters connection diagrams and parameter settings for your installation DP 4 Probe shown connected to retractile coil cord and internal wiring harness with bulkhead connector and fuse holder CONNECTION DIAGRAM UNIVERSAL DP 4 PROBE INTERNAL WIRING MACHINE CONTROL COIL CORD P N 10394 PROBE CABLE P N 11085 RED POWER SUPPLY OTO OVD SUPPLY 10 TO 30 VDC 1 8A PIN 2 RED PROBE OUTPUT SIGNAL GREEN WHITE SWITCH INPUT PROBE INTERNAL DETECT CIRCUIT CIRCUIT BOARD BROWN GREEN SWITCH INPUT H BLACK BLUE SUPPLY COMMON ONG sheo Xp sheo SHIELD N O N C SHIELD d SHIELD SHIELD SHRINK TUBE SWITCH SUPPLY COMMON WHITE CONNECTOR MAY BE PLUGGED IN DIRECT OR TO AN ADAPTER OR REMOVED DEPENDING ON TYPE OF CONTROL RESI DC SUPPLY CONTROL INPUT OPTO ISOLATOR
12. avel variation for the probe being used If vertical surface accuracy greater than the PTV value is needed then a probe with appropriate PTV is required such as the DP 7 If your part does not require very close tolerances then adjusting these probing rates could save you a significant amount of time but if you set the feedrate too high the results you get may not meet your requirements and you will just be wasting time So start off cautiously it is better to take a little longer when you are first starting out Once you have several digitizing runs under your belt you will have a much better feel for where these parameters need to be set to achieve the results to meet your job requirements The X Y and Z stepover The smaller the stepover distance the longer the digitizing run For instance the typical time it takes to digitize a 1 by 1 grid with a step over of 010 in X and 010 in Y with parameters 14 and 15 set to 30ipm and Sipm respectively is 45 minutes with 10 000 data points being recorded By changing the X stepover to 0 005 and the Y stepover to 0 005 the time increases to 3 hours with the number of data points recorded increasing to 40 000 The trade off with time is surface finish and detail The finer the stepover amount in the digitizing run the better the surface finish is going to be in the final part and the more fine detail you will be able to capture As the end user it is up to you to find the settings
13. e probe should be illuminated bright green Touch the probe tip and the LED should turn red STEP 3 Press lt Alt I gt to open the centroid PLC I O diagnostic screen Locate the inputs entered in parameters 11 and 18 Verify that they change correctly when the probe is triggered parameter 11 and plugged in parameter 18 STEP 4 Review the probe overtravel limits in the specifications on page 2 Perform an automatic probe cycle test with the feedrate over ride reduced to 20 and the stylus 10 inches away from any object to verify everything is working together Be prepared to manually stop the machine to prevent overtravel damage to the probe From the main screen press lt F1 Setup gt then lt F1l part gt then lt F5 Probing gt then lt F7 Single Axis and finally Cycle Start gt The control will jog the stylus in the direction of the single axis move selected Touch the stylus once and the control will stop and reverse travel the probe clearance amount then stop and then resume motion in the single axis direction at the slow probe rate Touch the stylus once and the control will stop and display a position window Repeat this step and adjust parameters as needed to gain confidence using the automated cycles STYLUS TIP DIAMETER CALIBRATION The final procedure is to calibrate your probe stylus diameter for the tool library Although the ruby ball tip diameter of the furnished styli is either 2 5mm or 5mm entering these values in
14. eatability tolerance Probe type enable Probe stuck retry disable Probe Deceleration Multiplier CNC10 systems recommended basic METRIC mm Parameter 3 10 11 12 13 14 15 16 18 120 121 122 123 151 155 186 366 Setting 0 0 14 10 0 508 762 76 2 127 15 0 508 0 508 0 005 Description Modal Tool and Height Offset Control Enables decel on probe contact PLC probe input number Tool library number for probe Clearance amount nominal Fast Probing Rate Slow Probing Rate Maximum Search Distance PLC input Probe Detect Spindle Inhibit Probe stuck clearance amount Grid digitizing minimum Z pullback Grid digitizing dead band distance Radial clearance move Repeatability tolerance Probe type enable Probe stuck retry disable Probe Deceleration Multiplier CNC11 systems recommended basic METRIC mm Parameter 3 10 11 12 13 14 15 16 18 120 121 122 123 151 155 186 366 Setting 0 0 50769 10 0 508 762 76 2 127 50771 0 508 0 508 0 005 0 Description Modal Tool and Height Offset Control Enables decel on probe contact PLC probe input number Tool library number for probe Clearance amount nominal Fast Probing Rate Slow Probing Rate Maximum Search Distance PLC input Probe Detect Spindle Inhibit Probe stuck clearance amount Grid digitizing minimum Z pullback Grid digitizing dead band distance Radial clearance move Repeatability tolerance P
15. lug the probe remove the stylus loosen the run out adjustment screws and remove the mounting shank Be careful not do damage any wires or allow any dirt or debris inside the probe Move the jumper from its present position to the opposite end of the three pin header to invert the logic Use tweezers or small pliers to slide the jumper block up off the pins and then slide it down on the pins at the opposite end of the three pin header Install the mounting shank and snug the run out adjustment screws The run out adjustment must be performed any time the mounting shank is removed INITIAL CONTROL PROBE SETUP PROCEDURE STEP 1 Confirm that control parameters are setup correctly for your system The automatic probing cycles will not work if the parameters are not correctly set See appendix to check the default parameter settings for the appropriate control system Check the control operation manual if compatible parameter settings are not found in the appendix STEP 2 Plug the 6 retractile cord into the DP 4 probe and into the digitizing port on the control The cord ends are keyed to prevent incorrect connection At the probe end line up the red dot with the red painted slot on the probe connector push the plug in until it clicks At the opposite cord end insert the large black connector and rotate until it drops into the digitizing port connector then finger tighten the securing ring to seat the connector The LED indicating light on the front of th
16. mat that can be used by the CAM programs APPENDIX A CENTROID CONTROL SAE PROBE PARAMETERS see control manual for additional information CNC10 systems recommended basic SAE inch Description Modal Tool and Height Offset Control Enables decel on probe contact Probe TT PLC probe input number Tool library number for probe Clearance amount nominal Fast Probing Rate Slow Probing Rate Maximum Search Distance PLC input Probe Detect Spindle Inhibit Probe stuck clearance amount Grid digitizing minimum Z pullback Grid digitizing dead band distance Radial clearance move Repeatability tolerance Probe type enable Probe stuck retry disable Probe Deceleration Multiplier CNC11 systems recommended basic SAE inch Parameter Setting 3 0 10 0 11 14 12 10 13 0 020 14 30 15 3 16 5 18 15 120 0 020 121 0 020 122 0 0002 123 0 151 0 155 0 186 0 366 1 Parameter Setting 9 0 10 0 11 50769 12 10 13 0 020 14 30 15 3 16 5 18 50771 120 0 020 121 0 020 122 0 0002 123 0 151 0 155 0 186 0 366 1 Description Modal Tool and Height Offset Control Enables decel on probe contact PLC probe input number Tool library number for probe Clearance amount nominal Fast Probing Rate Slow Probing Rate Maximum Search Distance PLC input Probe Detect Spindle Inhibit Probe stuck clearance amount Grid digitizing minimum Z pullback Grid digitizing dead band distance Radial clearance move Rep
17. n external shock It is good practice to periodically check alignment for quality control and to establish a base line maintenance schedule See Stylus Installation and Alignment Procedures section If the probe stylus can not be dialed in or aligned then the probe should be sent in for evaluation and repair The DP 4 has no internal user serviceable parts or adjustments and should only be serviced by Centroid If your probe should require repair please SHIPPING INSTURCTIONS Contact Centroid Technical Support at 1 814 353 9290 for a description of the return policy and assistance in determining if return is necessary before sending your probe back If the probe must be shipped it should be removed from the tool holder and the stylus must be removed from the probe Use the original plastic shipping tube and insert the probe in the tube with the stylus mount boss located inside the foam ring in the tube The foam should prevent the stylus mount boss from touching the end of the plastic tube if jarred during shipping Do not ship or store the probe with the stylus mount boss pushed into the probe body as this will negatively affect internal lubrication DP 4 PROBE KIT CONTENTS 3 16 wrench p n 2902 3 32 hex wrench p n 2898 Stylus tightening pin p n 2903 2 5mm Ruby tip stylus M3 thread 40mmlength p n 3357 5mm Ruby tip stylus M3 thread 40mmlength p n 3360 Precision ring gauge p n 3193 Size and type may vary DP 4
18. r doing automated part set up Required Tools 3 16 open end wrench 3 32 hex wrench 0 001 or better Dial Indicator with Magnetic Base 0 500 Dedicated Tool Holder STEP 1 Install the DP 4 Probe into the dedicated 0 500 tool holder STEP 2 Install the complete assembly into the milling machine spindle without the retractile cord STEP 3 Install the 2 5 or 5mm stylus in your DP 4 probe Thread the stylus into the probe stylus mount boss until finger tight Insert the stylus tightening pin from your tool kit into the hole located at the base of the stylus stem and place the 3 16 wrench from your tool kit on the flats of the stylus mount boss Refer to the picture below Do not apply any twisting force with the 3 16 wrench use the wrench to counter the twisting force being applied to the stylus by the tightening pin Excessive twisting force applied to the probe could damage the sensor assembly Tightening stylus with wrench and pin RUN OUT ADJUSTMENT STEP 4 Position the dial indicator as shown in the photo below with the finger of the dial indicator on the front and center of the stylus ball Insert the 3 32 hex wrench in the run out adjustment set screw directly above the finger of the dial indicator Loosen the set screw by turning the hex wrench counter clockwise while watching the dial indicator reading decrease Turn the hex wrench clockwise and watch the dial indicator reading increase ey TURNING THE SET
19. robe type enable Probe stuck retry disable Probe Deceleration Multiplier PROBE CONNECTION TO CENTROID CONTROL DP 4 PROBE INTERNAL WIRING COIL CORD P N 10394 Machine Controls MPU11 or ALLINTDC PROBE CABLE P N 11085 SUPPLY 10 TO 30 VDC 1 8A PIN 2 RED RED D D PROBE OUTPUT SIGNAL PIN 3 GREEN White connector plugs into PROBE INTERNAL DETECT CIRCUIT PIN 4 connector marked PROBE CIRCUIT BOARD BLACK SHIELD BLUE SHIELD SHRINKTUBE JUMPER N O N C Li VIRTUAL SWITCH SUPPLY COMMON WIRING DIAGRAM SHOWING CONNECTOR PIN NUMBERS WIRE COLORS AND WIRE FUNCTION CNC 7 THRU CNC10 Machine Controls For MPU11 ALLIN1DC CNC11 Machine PROBE CABLE BULKHEAD CONNECTOR WIRING Controls n 2 VDC POWER SUPPLY Plug white connector into connector marked PROBE PIN 5 PLC PROBE INPUT For CNC 7 THRU CNC10 Machine Controls PIN 6 PLC SPINDLE INHIBIT INPUT Use existing probe cable or remove white connector on new cable and wire bulkhed seonnectarasshownit right PIN3 SUPPLY AND SIGNAL COMMON SHIELD Various PLC hardware is used Consult PINT oo control manual for PLC input termination and function label BULKHEAD CONNECTOR NOTES PROBE BODY NOT CONNECTED TO SHIELD OR SUPPLY COMMON AT PROBE PROBE STYLUS MOUNT BOSS IS CONNECTED TO SUPPLY AND SIGNAL COMMON PROBE OUTPUT ABSO
20. s the amount of deflection of the stylus tip before the probe output switches This value varies depending on the length of the stylus speed and direction that the stylus tip is moving relative to the target surface when it makes contact Pre travel variation amount should be stated in probe specifications relative to stylus length and direction of travel limitations A probe that has small pre travel variation with no restriction on stylus length and direction of travel will be quite expensive Machine characteristics including lash and input latency also contribute to pre travel variation Pre travel variation errors can be easily avoided by always taking data in the same directions and speed The pre travel then becomes a constant and can be accounted for in the calibration procedures then accuracy becomes dependent on repeatability 0 0011 PRE TRAVEL VARIATION RADIAL DIGITIZING PRECISION BORE Typical pre travel variation for DP 4 probe showing variation over 720 degrees of radial digitizing routine of precision bore Inside circle represents the minimum value and the outside circle the maximum Data was collected probing at 1 inch per minute with a 43mm long stylus UNIDIRECTIONAL REPEATABILITY This specification indicates a 95 confidence level that repeated measurements will not vary more than the stated amount standard deviation at 2 sigma level The stated amount only applies to repeated measurements in the same direction and
21. sconnect point for the stock 6 foot retractile cord A positive lock unlock sliding sleeve on the cord connector facilitate fast reliable set up and removal DP 4 SPECIFICATIONS 0 50 0 12 7mm 1 2570 Body Dimensions and Travel Limits Probing directions Unidirectional repeatability 2 sigma Probe deflection force X Y Pre travel variation X Y plane Probe deflection force Z Probe body diameter and length Mounting shank diameter and length Stylus mount thread Output signal Output logic Power supply required LED status indicator Weight of probe and 5 Over travel limit angle X Y Over travel limit Z Environmental X Y Z 0 00004 1 micron 3 ounce minimum with 40mm stylus 0 001 with 40 mm stylus 9 ounce minimum D 1 25 31 8mm L 2 2 56 4mm D 0 5 12 7mm L 1 47 37 2mm M3 Switch FET open drain 30V 50mA Selectable normally open or closed 10 30 VDC 50mA green ready red tripped 0 45 Ib 10 degrees from vertical 0 15 3 8mm IP54 Dust Proof STYLUS INSTALLATION AND ALIGNMENT PROCEEDURES Important Read the complete alignment procedure before starting The run out adjustment procedure also called Dialing in is necessary to ensure that the center of the probe tip is aligned with the center of the spindle rotation axis This eliminates any undesired off sets between the probe and the cutting tool centers when digitizing o
22. tments are interdependent It will be necessary to repeat each several times to achieve significant results When completed the run out at the stylus mount end of the stylus stem should be nearly the same as the run out at the tip Adjust the stylus tip run out last To check the angular alignment begin by completing the Dialing in procedures for the probe tip Measure the run out at the base of the stylus stem the end away from the tip with the dial indicator If the run out is greater than the difference between the tip diameter and stem diameter then it will be possible for the stem to contact a vertical surface before the tip also called shanking out The angular alignment is accomplished by first performing a Dialing in procedure on the stem base using the run out adjustment set screws Next the tip is dialed in using the angular adjustment set screws in the end cap of the probe These two steps are repeated until the difference in run out between the tip and stem base is acceptable Be sure all set screws are equally tight when finished OUTPUT SWITCH LOGIC SELECTION The DP 4 output is a solid state switch that can be configured for normally open or closed logic This choice can be specified when ordering recommended or can be changed in the field The standard configuration for the stock DP 4 is normally open A jumper block located under the mounting shank inside the probe sets the logic To access the jumper block unp
23. to ensure good results Review Adjustments page 3 4 and 5 and Maintenance and Care page 9 to keep DP 4 in good operational condition 10 Probe is now ready to use TABLE OF CONTENTS General Description Specifications Stylus Installation and Alignment Procedures Run out Adjustment Dialing in When to check run out and dial in Angular Alignment Adjustment Output Switch Logic Selection Initial Control Probe Setup Procedure Stylus Tip Diameter Calibration Performance Characteristics Maintenance and Care Shipping Instructions Kit Contents Common Cables Connection Diagram universal Grid Digitizing Tips Cutting a Copy of Digitized Part Tips Appendix A Centroid Control System Application Default Parameters SAE and Metric Connection drawing for Centroid Systems Page 1 Page 2 Page 3 Page 5 Page 6 Page 6 Page 8 Page 9 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 1 Page 3 DP 4 PROBE GENERAL DESCRIPTION AND SPECIFICATIONS ____ Mounting shank Run out adjustment screws Electrical Use 3 32 hex wrench connector LED indicator light Body 5 ready Core index screw Red tripped Flush with body End cap Angular alignment screws E Stylus tightening hole Rubber seal Stylus sem Stylus mount boss Stylus tip Use 3 16 wrench on flats DU DP 4 FRONT VIEW DP 4 front and rear views shown with optional stylus attached G
24. wly jog the Z axis down until the tip of the probe is inside the bore and not touching anything STEP 3 From the main screen press lt F1 Setup gt then lt F1l part gt then lt F4 Probing gt Set your probe diameter to 0 000 in the field provided and press enter then lt F1 Bore gt and finally Cycle Start gt The control will jog the stylus to and probe each quadrant of the bore It will then return to the center of the bore A message box will appear on the screen that will display the measured diameter of the bore Subtract this number from the known diameter of the gauge bore The resulting number will be the calibrated diameter of the probe stylus tip STEP 4 Test the result press lt F4 Probing gt Enter the calibrated probe diameter in the field provided and press enter then lt F1 Bore gt and finally Cycle Start gt The control will jog the stylus to and probe each quadrant of the bore The message box will appear on the screen and will display the measured bore diameter within 0 0002 if the calibrated tip diameter is correct and the machine is in good condition Adjust tip calibration diameter and repeat as needed STEP 5 Go to the Tool Library and enter the calibrated diameter for the probe stylus in the tool you assigned to the probe in Parameter 12 The Probe Stylus Calibration is now complete Your DP 4 probe is ready for probing and digitizing PERFORMANCE CHARACTERISTICS PRE TRAVEL VARIATION Pre travel i
Download Pdf Manuals
Related Search