Power Patented Hold-down Unit For Shot Peening and Abrasive Blasting

Patent no. 5,272,897

• On the back side of the blast cabinet there will be hold-down devices to hold parts (gears) in place while being shot peened.

• Hold-down device rotates with part fixture spindles and is spring loaded to allow for wear on fixtures.

• There is an encoder and sensors to monitor rotation on part fixtures and hold-down fixture.

• This device will stop gears from free spinning or flying off of fixtures while peening.

• Without this device you could not have a loose fit on the fixtures. Without a loose fit on fixtures operator could not load or unload parts.

• Hold-down device is operated pneumatically with parker air cylinders. Device is in the raised positions when table is being indexed to the next station.

• Device is in the lowered position during the blast cycle.

• There are sensors located on the hold-down unit for position and rotation. Index table will not index to the next position when in the down position.

Patented Part hold-down unit to keep parts from spinning during peening or de-burring. Easily replaceable fixturing.

Shot peening long pinion gears for transmissions.

Shot peening ring and pinion gears together (high volume) for rear drive axle

Shot peening mutable transmission pinion gears stacked (high volume)

Shot peening transmission sun gears