机床测头基础知识.ppt

1、Probing basics,Machine tool probing technology - how they work and how you can use them,a,Slide 2,7/5/2020,Probing applications,Inspection on CNC lathes,Tool setting on machining centres,Tool setting on CNC lathes,a,Slide 3,7/5/2020,Kinematic resistive probe operation,a,Slide 4,7/5/2020,Kinematic re

2、sistive probe operation,Probe with optical transmission,Probe with inductive transmission,Benefits of the Renishaw probe design simple rugged highly repeatable sealed to IP X8 can be used with different transmissions to suit your application,a,Slide 5,7/5/2020,x,y,standard routines define probe path

3、 probe triggering latches onto machine position data is stored in macro variable locations data is retrieved for process automation,How an inspection probe works,a,Slide 6,7/5/2020,How a non-contact tool setter works,Beam-break system laser beam passes between transmitter and receiver units tool mov

4、ed to intersect beam at any point along its length electronics sense reduction in light at receiver and generate trigger machine position is latched and used to determine tool dimensions,a,Slide 7,7/5/2020,Designed for the machine tool environment,MicroHoleTM protection system laser beam emerges thr

5、ough small aperture constant air stream also passes through the MicroHoleTM, preventing ingress of coolant, swarf, chips and dust air flows at high speed: 150 to 250 m/s air stream angled to avoid turbulence along laser beam protection always on - even when measuring,MicroHoleTM,a,Slide 8,7/5/2020,D

6、esigned for the machine tool environment,MicroHoleTM protection system,MicroHoleTM prevents coolant ingress constant protection, even when tool setting,Protection in action through-tool coolant still active during breakage detection cycle,a,Slide 9,7/5/2020,Renishaw probing software makes things sim

7、ple,Easy to program or use in MDI mode PROGRAMMED - with pre-written EIA Macros SET WORK and TOOL OFFSETS - automatically SET ROTARY AXIS - automatically INSPECT - feature size, location and angle PRINT RESULTS of inspection,a,Slide 10,7/5/2020,Component set-up,Example program,% G80 G90 G00 T01 M06

8、G54 X0 Y0 G43 H1 Z100. 1.G65 P9014 X-10. Y-10. Z-5. F1000 Protected move 2.G65 P9012 X0.0 Y0.0 S1. Corner measure 3.G65 P9014 Z10.0 4.G65 P9014 X50. Y40. 5.G65 P9014 Z-5. 6.G65 P9019 D40.0 T10 M20 H0.2 Bore measure 7.G65 P9014 Z20.0 8.G65 P9014 Y90. 9.G65 P9018 Z5.0 S2. Z measure 10.G65 P9014 Z50.0

9、G28 Z100. M30,Inspection routines call the macro specify parameters highlight offsets to be updated,a,Slide 11,7/5/2020,Component set-up,Manual data input,Example. To set G54 to the surface X position use the jog wheels to position the probe within 10 mm of the surface key in G65 P9023 X10. S54. pre

10、ss Cycle start thats it - the cycle runs and the offset is updated,EasyProbe routines set your parts in seconds flexible - MDI or programmed,a,Slide 12,7/5/2020,On-machine inspection,Inspection reports,Example G65 P9834 X45. Y-65. W2. Feature to feature G65 P9810 X-135. Y-65. F3000. G65 P9814 D71. W

11、1. Bore measure Printed output. COMPONENT NO 31FEATURE NO 1 POSNR79.0569ACTUAL79.0012TOL TP0.2000DEV0.0557 POSNX -45.000ACTUAL-45.1525TOL TP0.2000DEV-0.1525 POSNY -65.000ACTUAL-64.8263TOL TP0.2000DEV0.1737+OUT OF POS+ERROR TP 0.1311 RADIAL ANG-124.6952ACTUAL-124.8578DEV-0.1626 COMPONENT NO 31FEATURE

12、 NO 2 SIZED71.0000ACTUAL71.9072TOL0.1000DEV0.9072+OUT OF TOL+ERROR 0.8072 POSNX -135.000ACTUAL-135.3279DEV-0.3279POSNY -65.000ACTUAL-63.8201DEV1.1799,Inspection Plus routines output probe data through the RS232 port to a printer,a,Slide 13,7/5/2020,Tool setting on machining centres,Non-contact tool

13、setting routines,Examples. To set the length of a tool move the tool over the beam (at any point along its length) execute G65 P9862 the active tool offset will be updated To check for a broken tool move tool to safe, clear position execute G65 P9864 tool positioned in Z and then swiped through the

14、beam short tools will trigger an alarm,Fast, simple cycles tool setting, broken tool detection and tool profile inspection,a,Slide 14,7/5/2020,Tool setting on lathes,Non-contact tool setting routines,AUTO MODE % G28 U0 W0 G98 T0101 T0202 G125 T2. H7. T0303 G125 T3. H8. T0313 G125 T3. H7. C20 T0404 G

15、125 T4. H4. T0505 G125 T5. H2. T0606 G125 T6. H1. M30,Tool setting and broken tool detection set a whole turret of tools in minutes programmed checks for tool breakage in-cycle,a,Slide 15,7/5/2020,Summary,Renishaw manufacturing technology helps you to: eliminate WASTE by: automating non value-added tasks buying parts off your machines establishing machine performance before your start to cut metal reduce VARIATION by: providing repeatable, automated feedback of process parameters monitoring tools and controlling part dimensions in cycl