Programmable Micro Driller User Manual
Contents
1. NSW Ns v ENT ER A SA WOM Nr M ENT ER Now the display should be flashing P P P 1 and 0 050 01 25 8 To review the programmed data press the LAST key Each time the LAST key is pressed the display will show the previous programmable variable When satisfied that all variables are programmed as desired go on to step 9 Otherwise alter the programmed values as required 94 To test the program turn the mode switch to the SINGLE position The machine will immediately drive the quill to the home zero position As the spindle is not under the control of the micro drilling controller it should be turned on and its speed adjusted at this time Then press the ENTER key The micro drilling controller will drive the quill to the upper boundary of the hole to be drilled at 30 inches per minute Press the ENTER button again The machine will drill 050 inches 1 25 mm into the part at the programmed feed rate of 1 inch per minute 25 mm per min then retract to the upper boundary at 30 inches per minute 750 mm per min and wait until the ENTER key is pressed or the mode switch is changed Each time th nter key is pressed the machine will travel rapidly 30 inches per minute 750 mm per min to the last depth already drilled then down one more peck increment 050 inches 1 25 mm in this case at the programmed feed rat2. 005045 0 Offset greater than upper work surface NOTE ON METRIC VERSION The metric version of the micro drilling controller moves increments of 0 25 millimeters Due to the limitations of the four digit display the least significant digit of the programmable E E E when th mod switch is changed from the PROG position in machine variables representing distance has been omitted To see this jog down one step at a time in the PROG mode With the display flashing U U U U press the ENTER key after each step Notice how the least significant digit counts Po Dy 1 053 The machine is actually moving 025 millimeters p alue used by the machine will be displayed after the ressed truncated as per previous description 0 t any value may be entered for the least significant digit v p ld but r step and runcating the 005 for display purposes Similarly when entering data the actual un ENT ER key is MICRO STEPPING Micro stepping with the programmable microdriller can be invoked automatically by programming a federate of 3 00 ipm or less in F F F F In this mode all of the three available drilling cycles operate in the same way as in normal stepping except for the quill travel speed discussed in more detail further below Use micro stepping primarily when drilling small diameter holes in hard to drill materials Micro stepping as opposed to regul
3. is used with the F F F 1 value below RANGE 0 000 TO 1 500 INCHES 00 00 TO 37 50 MILLIMETERS L0 F F F 1 Feed rate for center drilling action RANGE 00 01 TO 30 00 INCHES PER MINUTE 000 2 TO 750 0 MILLIMETERS PER MINUTE EXAMPLE 2 Continuing from example one suppose the amount of material that can be removed from the part is greater at the top of the hole than at the bottom Let the maximum peck size be 050 inches 1 25 mm and the minimum be 005 inches 12 mm Also that the tool should pause for 5 seconds 010 inches 25 mm above the part to clear chips Additionally let the quill travel rapidly to 003 inches 07 mm above the last drilled depth befor resuming drilling at the programmed feed rate The following steps may be followed to achieve the desired results 1 Review the first three programmed variables to make sure they ar programmed as per example one If not repeat steps three through six of example one 2 Use the NEXT or LAST key to get P P P 1 flashing in the display Enter the desired minimum peck as follows NO Nr xo NER y ENT ER C0 NOM NI Nom M ENT ER Now the display should be flashing P P P 1 and 0 005 7004127 Note It is only necessary to insert enough zeroes to bump the old value from the display 3 Press NEXT The display will flash P P P 2 and 0 000 Enter
4. of the part at the programmed feed rate More complete description of the operation of the machine in its various modes follows POWER UP SEQUENCE On application of power to the micro drilling controller the stepping motor will attempt to drive the quill up slightly more than 1 5 inches or 37 5 mm to find the top of the quill stroke This position is defined as zero or home To minimize mechanical wear the quill should be fully extended downward before applying power MANUAL JOG AND HOME KEY With the mode switch in the PROG position it is possible to move the quill up and down with the JOG keys indicated by arrows When a JOG key is depressed the quill will move in the direction indicated by the arrow on the JOG key If the key is pressed once and released immediately the quill will move only one step 001 or 025 mm If the key is not released after approximately one second the quill will move in the same direction at about seven inches per minute 180 mm per min The quill will not jog above home zero or below one and one half inches 37 5 mm below home zero Pressing the HOME key will cause the quill to retract to the home zero position at thirty inches per minute 750 mm per min It is useful to set the depth gauge to zero at the home zero position BASIC PROGRAMMING After power has been applied and zero defined it is necessary to program t
5. retract further to home zero at thirty inches per minute 750 mm per min Variables are programmed the same as for a peck cycle with the exception of P P P l which may be omitted 11 INTERRUPTING CYCLES IN PROGRESS There are two ways to stop a cycle from being completed These techniques are detailed below pe POWER SWITCH The power switch located on the back of the controller may be Switched to the off position This causes the machine to stop where TES ns When switched on again the machine will go through its entire initialization procedure The quill will seek home zero and all programmed variables will be cleared to zero This method should be used only in emergencies or when the program must be changed anyway 2 RESET The reset button is a momentary contact push button located on the front panel Pressing the reset button will cause the machine to halt at its current position At this time the operator has two options He may press the ENTER key to resume operation as if no reset had occurred or he may change the mode switch to any other position If the mode switch is changed to the PROG position the machine will retract immediately to the home zero position If the mode switch is moved to any position other than PROG a new operation should not be started until the HOME key is depressed When the HOME key is pressed the quill will retract to home zer
6. the maximum peck as follows NS Wt M ENT ER Np N27 Nis M ENT ER Now the display should be flashing P P P 2 and 0 050 01 25 5 4 Press NEXT The display will flash C C C C and 0 000 Enter the desired clearance as follows NI WOM M ENT ER P N2 6 ygu un ENT ER Now the display should be flashing C C C C and 0 010 005257 5 Press NEXT The display should be flashing o o o o and 0 000 Enter the desired offset as follows N37 v ENT ER S95 M ENT ER Now the display should flash o o o o and 0 003 00 07 6 Press NEXT The display should flash H H H H and 00 00 Enter the desired hold time as follows Nb NOM v ENT ER 2 Now the display should flash H H H H and 00 50 10 7 Review the programmed variables as per exampl one step eight Any or all of the variables may be changed Sufficient leading zeroes must be provided to bump the old value out of the display If a wrong valu is ntered simply continue entering the correct value with enough leading zeroes Pressing the ENTER key causes the value in the display to be stored Pressing the NEXT or LAST key before th previously stored data to be retained 8 Test the program as per exampl
7. 00 00 Enter the desired feed rate as follows s91 NOT NOT ANY ENT ER 2 X576 WOM M ENT ER Now the display should be flashing F F F F and 01 00 025 0 5 Press NEXT The display will flash U U U U and 0 000 Position the head so that the drill point is 1 500 inches 37 5 mm from the base This places the home zero 0 500 inches 12 5 mm above the part So program the upper boundary to be 0 500 12 5 mm NSW Ng NO M ENT ER Ni NDR Nb NO M ENT ER Now the display should be flashing U U U U and 0 500 12 50 Alternately the quill could be manually jogged until the tool is just touching the top of the part or the desired position is displayed Then press ENTER This will cause the displayed current quill position to be stored as the U U U U parameter That value will then be used as the top of the part 6 Press Next The display will flash L L L L and 0 000 The desired finished hole depth is 0 250 inches 6 25 mm so enter the following prd Wb gr M ENT ER 6 NOU NAAA v ENT ER Now the display should be flashing L L L L and 0 250 06 25 Te Press NEXT The display will flash P P P 1 and 0 000 The desired pecking increment is 0 050 inches 1 25 mm so enter the following
8. Ne Lt j ma FU E Q A THE REMAINDER OF THE HOLE WILL BE DRILLED WITH TH EQUAL TO P P P 1 THE MINIMUM PECK SOM RESTRICTIONS APPLY TO THE VALUES WHICH CAN BE PROGRAMMED FOR P P P 1 AND P P P 2 SEE ERROR CONDITIONS El PECK SIZE E H yn Bi E RANGE Pt BaPa Pob Es 2 GREATER THAN P P P 2 LESS THAN L L L L Lu AND BP Dido 6 CCE Cs CLEARANCE AT THE UPPER WORK SURFACE I E THE DISTANCE ABOVE PART TO WHICH TOOL IS TO BE WITHDRAWN BETWEEN PECKS T RANGE C C C C LESS THAN U U U U hee 0 0 0 0 OFFSET AT THE PREVIOUSLY PECKED DEPTH I E THE DISTANCE ABOVE THE LAST DEPTH DRILLED TO WHICH THE TOOL SHOULD TRAVEL AT THIRTY INCHES PER MINUTE 750 MM PER MIN BEFORE RESUMING DRILLING AT THE PROGRAMMED FEED RATE RANGE Q O020 0 LESS THAN Ci C G C e Aid HeH HOLD TIME BETWEEN PECKS ABOVE PART RANGE 00 00 TO 99 99 SECONDS 9 D D D D Center drill depth This is used if a center drilling action needs to be done prior to drilling the hole This parameter
9. SERVO PRODUCTS PROGRAMMABLE MICRO DRILLER MODEL 708 OPERATING MANUAL INFORMATION CONTAINED HEREIN IS PROPREITARY INFORMATION OF SERVO PRODUCTS COMPANY 34940 LAKELAND BLVD EASTLAKE OHIO ANY USE OR DUPLICATION OF THIS INFORMATION FOR ANY PURPOSE OTHER THAN THAT FOR WHICH THE INFORMATION IS PROVIDED IS PROHIBITED BY SERVO PRODUCTS COMPANY EXCEPT BY EXPRESS PERMISSION FORM 0800 80119 11 12 04 TABLE OF CONTENTS MODE SWITCH POWER UP SEQUENCE MANUAL JOG AND HOME KEY BASIC PROGRAMMING ADVANCED PROGRAMMING REAM CYCLE INTERRUPTING CYCLES IN PROGRESS ERROR CONDITIONS NOTE ON METRIC VERSION MICRO STEPPING MAINTENANCE PAGE 11 12 13 13 14 14 MODE SWITCH On the front panel is a four position rotary switch called the mode switch The program mode PROG is used to enter all variable parameters and to manually jog the quill up and down The single position SINGLE is used to test the programmed variables In the SINGLE mode the machine will xecute one peck each time the ENTER key is pressed After each peck the quill will retract at the maximum feed rate to the top of the part plus any clearance programmed In the AUTO mode the machine will execute as many pecks as required to drill to the desired final hole depth After completion of the drilling operation the quill is left fully retracted In the REAM mode the machin xecutes one complete plunge and retracts to the top
10. ar stepping is a drive technique applied to the motor that is used to move the quill up and down It will make the motor move the quill very smoothly to keep uniform pressure on the drill Small drills are generally fragile and break very often as a result of excessive pressure Use micro stepping to get clean holes and longer tool life When a federate of 3 ipm or less is used the microdriller will operate in exactly the same way as in regular stepping described earlier All drilling cycles will go through the same sequences The only difference is in the speed at which the quill travels throughout the cycle Entering a 3 ipm or less federate puts the machine in micro stepping such that in all cases the following procedure will be used T All cutting will be done in micro stepping mode at the programmed F F F F feedrate 2 All movements of the tool while inside the material that is being cut whether going up or down will also be done in micro stepped mode at the F F F F feedrate 3 The quill will still travel to the top of the working surface or retract back to home zero position at 30 00 ipm MAINTENANCE The only user serviceable part of the micro drilling controller is the fuse located on the back panel of the controller An indication of a blown fuse is blank display and no motor activity on power up Replacement fuse must be on half ampere 250 volt AGC type For other repai
11. e then rapid back to the upper surface If the mode switch is changed to the AUTO position the machine will complete all remaining pecks without any other keys being pressed If the mode switch is moved to the PROG position the machine will complete the peck in progress then travel rapidly to home zero and halt execution CAUTION CHANGING THE MODE SWITCH FROM SINGLE AUTO OR REAM TO PROG MODE DURING THE DRILLING OPERATION WILL STOP THE DRILLING CYCLE USE THE RESET BUTTON TO STOP THE QUILL IN THE EVENT OF A TOOL BREAKAGE OR OTHER EMERGENCY T ADVANCED PROGRAMMING Provision has been made for four additional variables to be programmed They are programmed the same way as the first four variables The mnemonics and descriptions of variables follow These variables aren t necessary for all drilling operations but provide mor fficient use of the micro drilling controller Die PUpSEI2 MAXIMUM PECK IN THE EVENT THAT IT IS DESIRE DRIL D TO ARGER PECKS NEAR THE TOP OF THE HOLE THAN AT THE BOTTOM P P P 1 REPRESENTS THE MIN PECK AND P P P 2 REPRESENTS THE MAXIMUN Pl THE CONTROLLER WILL BEGIN PECKING WITH P 2 AS TH FIRST PECK SIZE THE SIZE WILL D NISH WITH EACH PECK UNTIL THE MINIMUM PECK SIZE IS REACHED I Tj Gl ES
12. e one step nin mode after the ENTER key is pressed the first time travel rapidly to ten thousandths 25 mm above surface of the part Pressing the ENTER key again ENTER key causes the newly entered data to be discarded and the In the SINGLE the machine will the upper work causes the quill to lower at the controlled rate to the maximum peck size P P P 2 fifty thousandths 1 25 mm below the upper surface It then automatically retracts to ten thousandths 25 mm surface at thirty inches per minute 750 mm per min above the upper Press ENTER again The quill rapids down to forty seven thousandths 1 17 mm below the upper surface three thousandths 07 mm above where it last left off It then goes down further at the programmed feed rate making a smaller peck than the first one and rapiding up to above the surface It will continue in this fashion one peck at a time in SINGLE mode or may be put into AUTO mode to complete the hole REAM CYCLE With the mode switch in the REAM position after pressing the ENTER key the machine will travel rapidly to the specified clearance above th work surface then continue at the programmed feed rate until the desired hole depth is reached It will then retract at the programmed feed rate to the specified clearance above the upper surface and then
13. he machine for the desired operation With the mode switch in the PROG position the display will alternate from an alpha numeric mnemonic to the currently programmed value for the variable Upon initialization all variables are set equal to zero To enter the desired value simply press the numeric keys most significant first After the first key is pressed the display will stop flashing The digit depressed will show in the right hand side of the display When the next key is depressed the first digit will move over one place to the left and the new digit will be displayed in the right hand position Note The decimal point is fixed in the display so trailing zeroes must be entered until the display reads the desired value If a mistake is made whil ntering data simply start over entering the correct data with sufficient leading zeroes to bump the incorrect data out of the display When The display will re the display reads the desired value push the ENT ER key sume flashing with the new programmed value Depr NEXT key to go on to the next programmable variable Pressing the key before the ENT ER key will cause the new value to be discarded ss th NEXT the old value to be retained and the next programmable value to be displayed The LAST key is iden which the variables are scanned Distances are measu
14. o and the machine initialized to start a new cycle To begin a complete new cycle press ENTER The reset button is to be used most often for interrupting cycles as none of the programmed variables are changed and the operator has the option of resuming the cycle without starting over If the setup is changed the operator must make sure all programmed variables are still correct I E If a broken tool is replaced the upper work surface should be reprogrammed 10 ERROR CONDITIONS If an error should occur during programming the machine will display Exception If the feed rate is programmed to zero the error will not be indicated until after the ENTER key is depressed The nature of the error may be determined by returning the mode switch to the PROG position At this time the display will be flashing one of the programmable variables The nature of the error will determine which of the programmable variables will be displayed From comparing the displayed variable to the following list one may determine the required programming change VARIABLE DISPLAYED ERROR CONDITION ESELECE Feed rate out of bound Us UV Un Upper work surface plus hole depth greater than machine stroke L L L L Maximum plus minimum peck size greater than hole depth PPP Peck size equal to zero CoC SVO Clearance greater than upper work surface
15. red from the top down The basic pecking cycle requires programming of four variables Tas PPE E RANGE 2 DU d Us RANGE 3 Ei Eo LL RANGE 4 PP Peds RANGE FEED RATE WHILE DRILLING 00 01 TO 30 00 INCHES PER MINUTE 000 2 TO 750 0 MILLIMETERS PER MINUTE tical to the NEXT key xcept reversing the order in All programmed values are positive n umbers UPPER BOUNDARY OF PECKED HOLE REFERENCED TO HOME ZERO 0 000 TO 1 500 INCHES 00 02 TO 37 50 MILLIMETER LOWER BOUNDARY OF PECKED HOLE REFERENCED TO THE UPPER BOUNDARY 1 E THE DEPTH OF THE FINISHED HOLE 0 000 TO 1 500 INCHES 00 00 TO 37 50 MILLIMETERS PECK INCREMENT SIZE I E THE AMOUNT TO BE DRILLED BEFORE CLEARING CHIPS NOT NEEDED FOR REAMING 0 001 TO 1 500 INCHES 00 00 TO 37 50 MILLIMETERS EXAMPLE 1 Metric units in parenthesis Suppose it is desired to drill a hole 0 250 6 25 mm inches deep in a block 1 000 25 mm tall The material is such that it can be drilled at 01 00 inch per minute 25 mm per min and chips must be cleared after every 0 050 inches 1 25 mm of drilling The following procedure should be followed Pe With power off pull down quill until fully extended 2 Plug in A C power cord if not plugged in and turn on power 3 Put mode switch to PROG setting 4 At this point the display should be flashing F F F F alternating with
16. rs contact the factory For drill press maintenance consult Drill Press Operating and Maintenance Instructions manual SERVO PRODUCTS COMPANY Web www servoproductsco com CALIFORNIA BRANCH HEADQUARTERS FLORIDA BRANCH 1355 W Foothill Blvd 34940 Lakeland Blvd 8950 131 Ave N Azusa CA 91702 Eastlake OH 44095 Largo FL 33773 Ph 626 691 0121 Fax 626 334 7301 Ph 440 942 9999 Fax 440 942 9100 Ph 727 585 8555 Fax 727 585 6555 14
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