GMS 32Gear inspection machine
Geartec.cz, Czech Republic, 2017
MACHINE CAN MEASUREStandards: DIN, ISO, AGMA, BS, JGMA, JIS
Double flank deviationsFi
'' - Total composite errorfi
'' - Tooth to tooth errorFr
'' - Radial runout
Other measurable deviatonsj - backlashAa - Fluctuation of axis distanceMz - Measure over teethMdk - Measure over pins
Geartec.cz, Czech Republic, 2017
MACHINE PARAMETERS
Module range 0,1 – 2 mm
Center distance range for basic slide 16,5 – 90 mm
Vertical stroke 50 mm
Diameter of measured gear, max. (clamped on arbor) 120 mm
Diameter of measured gear, max. (clamped between centers) 80 mm
Weight of measured gear, max. 0,5 kg
Measuring force adjustment (manually adjustable) 0 – 8 N
Measuring accuracy up to 1 μm
Standard master gear arbor diameter 12,7 mm
Dimensions 350 x 200 x 200 mm
Geartec.cz, Czech Republic, 2017
MEASURING PRINCIPLE
• Tooth errors cause deviation of axis distance
• Left and right flank is measured simultaneously
• Constant force in radial direction
• Measuring accuracy is better than 1 μm
• Deviation according to DIN, ISO, AGMA, JIS, JGMA and BS
Geartec.cz, Czech Republic, 2017
SMALL AND VERY SMALL GEARS
• Manufacturing requirements:
• Quality grade according to DIN standard
• Guaranteed tooth backlash
• Low running noise
• Influence of assembly accuracy
• Localization of tooth nicks
• Quick and inexpensive measurement
This is all where our double flank gear tester canhelp you
Geartec.cz, Czech Republic, 2017
INSPECTION REPORTS (HEADER)
Workpiecedata
Customer'slogo
Geartec.cz, Czech Republic, 2017
INSPECTION REPORTS (CHARTS)
Angular position
Geartec.cz, Czech Republic, 2017
EVALUATION
Allowed valuesaccording to DIN 3963
Measured values
Geartec.cz, Czech Republic, 2017
SOFTWARE INTERFACE
Basic parameters of toothing, description of clamping fixtures
Measuring software isuser-friendly requiring no special PC knowledge. Itcan communicate in many languages and runs underMicrosoft Windows operation system.
Geartec.cz, Czech Republic, 2017
TOLERANCES
Option of standards and a degree of accuracy for each deviation
Geartec.cz, Czech Republic, 2017
EXAMPLE 1: GOOD RESULTS
Double flank chart, gear with 36 teeth
• Radial runout about 0,010 mm
• Visible meshing of individual teeth
• One tooth in the middle of chart is little thicker
Geartec.cz, Czech Republic, 2017
EXAMPLE 2: TOOTH NICK
Tooth No.9 is damaged on top
• Gear has axial runout
Geartec.cz, Czech Republic, 2017
EXAMPLE 3: LOW QUALITY GEARING
Double flank chart, gear with 16 teeth
• Wrong pressure angle
• Tooth No. 5 is damaged or dirty
Geartec.cz, Czech Republic, 2017
EXAMPLE 4: LOW QUALITY GEARING
Double flank chart, gear with 15 teeth
➢ Radial runout
➢ Teeth have inaccuracy of profile from hobbing machine
Geartec.cz, Czech Republic, 2017
EXAMPLE 5: MEASURING OF BACKLASH
• Axis distance is evaluated according to given value
• Calculation of measurement over teeth or over pins
Geartec.cz, Czech Republic, 2017
EXAMPLE 6: CONTACT PATTERN
• Values of contact pattern are depicted in %
• Stored in database with measuring results
Geartec.cz, Czech Republic, 2017
STATISTICAL EVALUATION (SPC)
Geartec.cz, Czech Republic, 2017
• Measuring of two gears with bore
• Master gear on the left side, measured gear on the right
Geartec.cz, Czech Republic, 2017
• Measuring of two very small plastic gear with bore
Geartec.cz, Czech Republic, 2017
• Measuring of pinion mounted between centers,
application for motor rotors
Geartec.cz, Czech Republic, 2017
• Measuring of rotor, evaluation to bearing surfaces
Geartec.cz, Czech Republic, 2017
• Measuring of pump gears mounted between centers
Geartec.cz, Czech Republic, 2017
• Measuring of helical gear with spur master gear
Geartec.cz, Czech Republic, 2017
• Measuring of rotor shaft for small motors
Geartec.cz, Czech Republic, 2017
• Measuring of internal gears for planetary gearboxes
Geartec.cz, Czech Republic, 2017
• Measuring of worm gears for very small rotary tables
Geartec.cz, Czech Republic, 2017
• Measuring of small gears for dental drill
Geartec.cz, Czech Republic, 2017
• Measuring of small bevel gears for dental medicine
Geartec.cz, Czech Republic, 2017
• Worm measuring – radial runout and cylindricality
Geartec.cz, Czech Republic, 2017
• Measuring of crown gears
Geartec.cz, Czech Republic, 2017
• Radial runout – elimination of master gear error
Geartec.cz, Czech Republic, 2017
• Mechanical measuring by a dial
Geartec.cz, Czech Republic, 2017
• Set of master gears
Geartec.cz, Czech Republic, 2017
THANK YOU
GEARTEC.CZ, s.r.o.Křižíkova 270
250 88 ČelákoviceCzech Republic
www.geartec.cz
Geartec.cz, Czech Republic, 2017