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96-5047 rev L June 2005
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1. INTRODUCTION
1.1 D
ESCRIPTION
The HAAS rotary table is a fully automatic, programmable, rotary positioning device. The unit is made up of two
parts: the mechanical table that holds the workpiece and the electronic unit that controls the rotation of the
table. Positioning of the workpiece is accomplished by programming the angular movements into the memory
of the control and then pushing the CYCLE START button on the front panel.
The unit was specifically designed for rapid positioning of parts in secondary operations such as milling,
drilling, and tapping. The device is especially suited to automatic machines such as NC mills and automatic
production machines. The control can be remotely activated by your equipment and does not require human
assistance, resulting in fully automatic operation. Furthermore, one unit can be used on several different
machines, thereby eliminating the need for multiple units.
TABLE
The rotary table can be used in almost all of the applications where a manual rotary table can be used. Posi-
tioning of the table is accomplished through a deep-tooth engaging, self-locking worm and worm gear set. The
worm is connected to a AC (DC) servo motor through a timing belt and pulley set. Odd number bolt circles and
uneven hole spacing are easily handled with simple programming. The table is equipped with a pneumatic
brake (HRT 450 uses air over oil). A regular shop air line of approximately 100 PSI is all that is needed to
activate the brake.
The HRT210SHS (Super-High Speed) Table is unique from the other rotary tables. It has no worm gear set, belt,
or pulleys but uses a “Harmonic Drive” gear. It is directly driven by an AC servo motor and is 6 times faster than
our standard HRT210.
The HRT320FB uses a facegear (Hirth coupling) for extreme indexing accuracy and rigidity. It positions the
platter in multiples of exactly 1° . The platter lifts .070” during indexing and the table positioning is done at full
rapid speed. The HRT320FB cannot be used as a full forth axis.
CONTROL
The rotary table servo control incorporates the latest in high-speed microprocessors and drive technology. The
control was designed using extensive software to replace discrete components, thereby reducing possible
failure areas. This same software also checks out the computer system upon power-up, and alerts you to
component failures. Only one printed circuit board is used to control all major functions.
The optional RS-232 interface can be used to upload, download, enter data, read position, start, and stop motor
operation.
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