 |
The 300AT Series Linear Tables, like the 100BT Series Tables incorporate a non-recirculating linear ball bearing system to produce extremely smooth
linear translation with excellent straightline and flatness accuracy. They also offer a precision ground leadscrew drive mechanism which is preloaded to provide highly precise positional accuracy and
repeatability. The 300AT, however, has the drive mechanism located on the side of the unit to allow for a clear opening through the center of the table(s). This center opening (aperture) enables these tables to be utilized in a variety of applications where light or objects can pass through the table. These include component insertion and assembly, back-lit inspection, and scanning applications. Table elements are constructed of high quality aluminum alloy and are protected with black anodized surface finish. The top and bottom mounting surfaces are precision machined to assure flatness, and fixturing holes are fitted with locking steel threaded inserts. These units are offered in English or Metric versions, and in two grades: precision grade and standard grade which permit cost savings to be realized in less demanding applications. A wide range of coupling styles and bores are available to match motor requirements. Bellows-style couplings are required for all precision grade tables and have the lowest radial windup, while the aluminum and stainless steel helix couplers offer good windup characteristics and high durability at a lower cost. Motor Mounts The motor mount is designed for an industry standard NEMA 23 motor flange with shaft lengths between 0.65 and 0.85 inches. Limit and Home Switches All styles can be equipped with either mechanical reed switch or optical sensor type limit and home switch assemblies. The limit switches provide a signal when the table is approaching its end of travel which is used to command the motor to stop. The Home sensor provides a fixed reference point to which the table can always return.
|
