TRIAD Technologies, Inc.

SWEEP GAGES

Sweep gages are generally used by suppliers when a customer requires variable data for hole locations better known as "True Position." If the fixture gage is built to hold the part indentical to the machining fixture, the sweep unit can be utilized to determine -X- -Y- coordinants. This allows the tool set-up crew to make exact -X- and -Y- tool movements to set hole locations at nominal tolerances. Many times functional true position pins are used as well as sweeps, and are designed to to fit the same bushing as the sweep.

Each one of these units are custom designed for a particular diameter and custom fit to their corresponding bushing. It is also possible to provide sweep units that you or your gage builder could fit to the true positions bushing of an existing fixture gage, by lapping down the body of the sweep unit to fit the bushing or lapping out the bushing to fit the sweep body.

Our sweep units consist of the following details:

Sweep Body: The sweep body is made of tool steel and hardened to a rockwell slightly harder than the bushing to reduce wear. Typically ground and lapped to fit bushing with minimal effort.

Contact: The contact is the item that makes contact with the part being checked. The contact moves in and out of the sweep body as determined by the hole configuration transferring information to the indicator.

Fork: The fork works in relationship to the contact. It is the transfer mechanism that carries the movement from the contact to the indicator unit at a 1:1 ratio.

Swivel: The swivel is attached the sweep body, and is the device which holds the indicator in place by use of a collet. This allows the operator to rotate the body of the sweep, and hold the indicator in an attitude to be monitored constantly as you rotate the body.

Indicator: Our preference is to use a Mitutoyo T.I.R. indicator, but other electronic indicators as well as dial indicators can also be used.

Guard: A guard, made of aluminum and powder coated, is attached to the top side of the swivel its primary purpose is to protect the indicator from unfortunate dings and drops.

T.I.R. Bottom Pilot Sweep Unit

T.I.R. Bottom Pilot Sweep Unit

T.I.R. Bottom Pilot Sweep Unit

Swivel Unit