Haas TRT210, Operator'S Manual, Page: 9 / 79

1
TRT
TILTING ROTARY
TABLE
TRT
O M
PERATOR’S ANUAL
TILTING ROTARY
TABLE
96-5048 rev E
June 2002
1. INTRODUCTION
1.1 D
ESCRIPTION
The HAAS tilting rotary table is a fully automatic, programmable, rotary positioning device. The unit is made up
of a mechanical table that holds the workpiece, a second table that rotates the first, and an electronic unit that
controls the movement of the tables. For the T5C, the table rotates an indexer. Positioning of the workpiece is
accomplished by programming the angular movements into the memory of the dual control, and then pressing
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 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. A regular shop air line of approximately 100 PSI is all that is needed to activate the brake.
CONTROL
The tilting 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.
The optional RS-232 interface can be used to upload, download, enter data, read position, start, and stop motor
operation.
1.2 L
IMITATIONS
The control and table are described as a “semi-fourth axis”. This means that the table cannot do simultaneous
interpolation with other axes. Linear moves or spirals can be generated by having an axis of your mill move at
the same time the rotary table moves (see the "Programming" section for details).
1.3 M
ACHINABLE
P
ART
S
IZE
The TRT series was designed for positioning and continuous milling of medium to large sized parts. When
selecting a rotary table, the size of a typical workpiece and fixture must be considered and the size of the
rotary table should be matched to the expected loads. As a general rule, the diameter of the part should not
exceed the diameter of the rotary table platter. However, these are only guidelines. A part with a diameter larger
than the platter diameter or a long overhung and unsupported part might require that the weight be less than the
weight of the rotary table. Likewise, if the part is well supported (i.e. tailstock or pillow block), and the fixture
and support have less than 0.003" T.I.R, then the weight might be able to be more than the rotary table weight.
Common sense and good fixturing technique will generally make it possible to machine larger parts.
INTRODUCTION