This is a (4) jaw – 6 inch O.D. diaphragm chuck that was used to hard turn the I.D. of bearing caps. This chuck accommodated (3) different sizes of the bearing caps, where change over was as simple as removing (1) screw from each jaw. This chuck had a positive part stop with a part ejector that was used in a system with robotic load.
There was also a built in air cylinder which incorporated push-pull capabilities. The chuck was built with stir- around screws where the chuck was proven to repeat within .0001 TIR. This particular chuck was used to replace a (3) jaw sliding chuck where performance and maintenance was timely and not cost effective.
Being this chuck was used in a grinding application, the previous chucks were having to be taken off the machine and disassembled every month due to the nature of the grinding process. With the one-piece construction of the diaphragm, the chuck has currently been in use for over 1.5 years with continuous cycle times of 7 seconds.
This chuck is a 9 inch, 6-jaw I.D. diaphragm chuck. Our customer needed a way to perform an audit on their production ring gears they were machining. This chuck was used and developed to hold on the I.D. of the ring gear so various dimensions could be checked.
This chuck had to repeat within .0002 in order to assure proper readings from the audit machine. There were (2) different sized ring gears, so all that was necessary for part change over was replacing the (6) top jaws that has (2) bolts per jaw to hold it in place. Even with part change over, the chuck repeated within .0002.
Diaphragm Chuck This chuck is a 12 inch O.D. diaphragm chuck with 9 ears. There is no grinding of the jaws at part change over and the chuck still repeats within .0002 TIR.