Senior Design 03-04: Team 7

The design of our project has taken several forms over the course of the year. Initially we planned to hold the gears by the two clamps as shown in the image below, and move the height gage back and forth on the rails as shown. However, with this design it would have been difficult to accommodate all gears.

Thanks to Mr. Spoelhoef, a simplification was made to the first design. By holding the gears in the two V-blocks as shown below, the measurement process is simplified because the height gage is in-line with the high point of the gear.

The previous design was not without its limitations. It was unclear if the V-blocks would be able to support the largest gears without deflecting. Also, originally we wanted to be able to take all measurements with out having to move the gear as was currently done by DynaTorque. Yet, a valid method for measuring the twist had not been found, so a second orientation would be needed. The picture below shows the new design.

This set up allowed for the measurement of overall diameter, whole depth, and throat diameter in the V-Blocks. Then the twist could be measured using the flat plate. The height gage would need to be rotated in order to do this, which is not desirable because of the possibility of added error. The was solved by the simply using two devices. The height gage mounted and using two V-blocks as in previous designs, and the use of a test indicator to measure twist on the second device. This is shown in the two images below.