MLP-2 · PDF fileeffective face width: b=7 . pressure angle: αn=20 ... compliance with...
Transcript of MLP-2 · PDF fileeffective face width: b=7 . pressure angle: αn=20 ... compliance with...
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Laser Probe Contour Measuring Instrument MLP-2
Configuration
* printer is optional
dust-proof cover
pc for control and evaluation
measuring unit
vibration isolator
monitor
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Measuring Unit
axis moving range resolution
X 120mm 0.1μm
Y 90mm 0.1μm
Z 130mm 0.1μm
AF (R) 40mm 0.01μm
θ 360° 0.001°
Stage Part
Principal Specifications 1. laser beam spot diameter: 1μm (at 100 magnification) 2. specimen size: φ0.02mm~φ80mm 3. measuring functions ●contour ●surface roughness ●gear profile ●cutting edge of tools ●roundness
Laser Probe Contour Measuring Instrument MLP-2
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Feature 1: Rotational Center Measuring Function
measuring surface image
measurement sight viewed from the upper camera
Operation Screen (PC Monitor)
Centering adjustment of specimens is NOT necessary since MLP-2 detects the dynamic center of the θ stage by measuring the standard ball.
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Specimen (gear)
vise
cored bar
objective lens
* The specimen just sits on the top of the cored bar. * MLP-2 provides easy setup of a specimen and stress-free environment to it.
Feature 2: Easy Setting
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MLP-2 provides real-time view for measurement-points.
cross-sectional profile display
coordinate value display (μm)
the upper camera
monitor for measurement-point
Feature 3: Real Time Observation
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Micro End mill φ270μm
Measuring Equipment MLP-2
0.5mm
Function 1: Contour Measurement * outside diameter: φ266μm * rake angle: 4.18° * flank angle: 13.03° * core thickness: 153μm
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1) Micro Glass Ball Φ20μm * Best fit R:20.74μm * Roundness:0.064μm
Measuring Equipment MLP-2
Function 2: Roundness Measurement
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2) Micro Glass Ball Φ80μm * Best fit Radius:25.28μm * Roundness:0.199μm
Measuring Equipment MLP-2
Function 2: Roundness Measurement
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SRM 2074 Certificate
MLP-2
Difference
Ra 0.972
(±0.025) 0.970 -0.002
D 40.00 (-0.02,+0.06)
40.017 +0.017
Measuring Condition: *NIST Calibration certificate of SRM2074 (NIST) *Stylus tip width=2μm *λc=0.8mm L=4mm.
Unit:μm
Function 3: Roughness Measurement
MLP-2 (Laser Probe): *Objective lens :100x(NA=0.8) *Spot diameter=1μm *λc=0.8mm L=4mm
Specimen: NIST Roughness Standard
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Measuring Example
Specimen: Helical Gear Gear Specification module: m=0.27 number of teeth: Z=34 pitch diameter: d=9.709 effective face width: b=7 pressure angle: αn=20° helical angle: β=19°R transfer coefficient: Xn=0 processing method: grinding processing machine: STRAUSAK
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φ7
d=9.
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da=1
0.31
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Result of Gear Profile Measurement MLP-2 measures the entire profile of the specimen!
m=0.27 Z=34 d=9.709 αn=20° β=19°R xn=0
2mm
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MLP-2 detects involute deviation at sub μm level!
right tooth flank: Max FαR=2.9μm
left tooth flank: Max FαL=2.9μm
slider for tooth number selection
Evaluation of Tooth Profile Deviation
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single pitch deviation: Max fpt=1.07μm
pitch variation: Max ftu=1.56μm
total cumulative deviation: Max Fp=3.55μm
radial run-out: Max Fr=3.89μm
right tooth flank
decentering elimination function
Evaluation of Pitch Deviation & Radial Run-Out
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Result of Transmission Error Calculation
right tooth flank: Max Error=3.314μm Min Error=-3.261μm
left tooth flank: Max Error=4.734μm Min Error=-3.434μm
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Roughness Evaluation of Tooth Profile
(compliance with JIS B 0601:2001) *λc: 0.08mm * c: 0 % * l: 0.08mm * ln: 0.56mm * Rp: 1.73857 μm * Rv: 1.44714 μm * Rz: 3.18571 μm * Rc: 1.69894 μm * Rt: 5.72 μm * Ra: 0.547196 μm * Rq: 0.678878 μm * Rsk: 0.0215829 * Rku: 3.09934 * RSm: 10.153 μm * Rmr(c): 0 %
Roughness Calculation
Cross-Section of Tooth Profile
Drawing Specification: Rz≦6.3μm Measurement Result: Rz = 3.2μm
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Mitaka Kohki Co.,Ltd. 1-18-8 Nozaki, Mitaka-Shi, Tokyo 181-0014 Japan
Phone: +81-422-49-1491 Fax: +81-422-49-1117
E-mail: [email protected]
http://www.mitakakohki.co.jp/