Donner + Pfister AG

DONNER + PFISTER PRODUCTS

PITCH TESTER ES4100 | ES4400 PROFILE & LEAD INSPECTION UNIT | GEAR GRINDING MACHINES | RECORDER ES-42X | INVOLUTE PROFILE TESTER ES4300

PITCH TESTER ES4100

Measuring and charting of the pitch on cylindrical gears.

lnspection of gears of size and weight for which there is no gear measuring machine available.

lnspection of pitch on the gear production machine, i.e. without breaking down the set-up.

Based on the measured pitch characteristics, corrections to machine settings can be made. Avoidance of machine standstill, which occurs when a workpiece has to be removed, set up on a gear measuring machine, and again set up on the pro¬duction machine.

Fast set-up, simple Operation and accurate measurement thanks to the stable construction, the in-built processing of the measuring data and by the tip-up and rotatable display with touch-screen.

Operation
The portable pitch measuring instrument is a universal device. The only prerequisite for its use is a slowly rotating round work-table or an appropriate arrangement between centres, where the workpiece to be measured can be accommodated.

The apparatus is therefore employed directly on the machine tool or as a supplementary device on measuring centres.

The operator is guided through the setting up and the measurement; the training time is minimal, the measurements are performed automatically.

The records are printed out via wireless printer or via Memory stick.

The measurements can be stored on an external PC in the form of an Adobe Acrobat PDF file.

PROPERTIES

Operating range:

• Module 1- 40 mm
• No. of teeth 999
• Reference diameter not limited
• Tooth span 250 mm
• Workpiece periph. speed 0.1-12 mm/s

Accuracy:

• Adjacent pitch typical ±0.1μm / guaranteed ±0.2 μm
• Cumulative pitch typical ±1μm / guaranteed ±1.5 μm
• Radial runout typical ±0.2μm / guaranteed ±0.4 μm

Dimensions: 550x350x250 mm Weight: 28 kg

Accessories:

• Transportation case
• Transportation hood
• Set of probes

Options:

• Printer with print server
• Memory-stick for storing documents in PDF format
• Measuring device for internal gears

Basics
The gear to be measured rotates slowly, either continuously or intermittently about its axis, and the measuring probes are dipped into and withdrawn from the tooth spaces in an appropriate cycle. While the speed of the workpiece can vary within limits, the ES4100 can adapt its cycle. The positive and negative circular pitch deviations are plotted on both sides of a straight center line, which represents the arithmetic mean of all measurements, a diagram over the gear circumference. Result A record with the desired and the obtained quality; on request also as PDF file.