초록 ▼

A two-axis Cartesian robot comprising a vertically disposed Y-axis support having a traverse carriage selectively vertically movably mounted thereon. An X-axis support is movably mounted on the carriage. A reversible drive motor is mounted on the carriage and has a driven shaft extending therefrom u

A two-axis Cartesian robot comprising a vertically disposed Y-axis support having a traverse carriage selectively vertically movably mounted thereon. An X-axis support is movably mounted on the carriage. A reversible drive motor is mounted on the carriage and has a driven shaft extending therefrom upon which is mounted a planetary gear drive including an X-axis drive gear and a Y-axis drive gear which are in engagement with gear racks on the X-axis and Y-axis supports, respectively. A Y-axis brake is provided for selective engagement with the Y-axis drive gear for selectively preventing rotation of the Y-axis drive gear and an X-axis brake is provided for selective engagement with the X-axis drive gear for selectively preventing rotation of the X-axis drive gear. A workpiece manipulator is secured to the X-axis support for movement therewith.

대표청구항 ▼

[ I claim:] [1.] A two-axis Cartesian robot, comprising:a first elongated and substantially vertically disposed Y-axis support having upper and lower ends;said support having an elongated Y-axis bearing rail provided thereon positioned between the upper and lower ends thereof;said Y-axis support hav

[ I claim:] [1.] A two-axis Cartesian robot, comprising:a first elongated and substantially vertically disposed Y-axis support having upper and lower ends;said support having an elongated Y-axis bearing rail provided thereon positioned between the upper and lower ends thereof;said Y-axis support having an elongated Y-axis gear rack thereon positioned between the upper and lower ends thereof;a traverse carriage vertically movably mounted on said Y-axis bearing rail;a motor mount provided on said traverse carriage for movement therewith;said traverse carriage having an X-axis bearing block provided thereon;an elongated and substantially horizontally disposed X-axis support movably mounted on said X-axis bearing block and having first and second ends;said X-axis support having an elongated X-axis gear rack thereon positioned between said first and second ends thereof;a drive motor mounted on said motor mount and having a driven shaft extending horizontally therefrom;a planetary gear drive reducer;said reducer including a reducer housing having inner and outer ends;said reducer also including a drive pinion gear positioned in said reducer housing which is secured to said drive motor driven shaft;a plurality of follower gears in said reducer housing in engagement with said drive pinion gear and having axles upon which they rotate;said follower gears having inner and outer sides;a follower carrier positioned in said reducer housing at the outer sides of said follower gears;said axles being connected to said follower carrier;said reducer including a fixed gear positioned therein which is in mesh with said follower gears;said follower carrier having an output shaft secured thereto;an X-axis drive pinion operatively connected to said output shaft for rotation therewith;said X-axis drive pinion being in operative engagement with said X-axis gear rack;a Y-axis drive pinion operatively connected to said fixed gear for rotation therewith;said Y-axis drive pinion being in operative engagement with said Y-axis gear rack;a Y-axis brake for selective engagement with said Y-axis drive pinion for selectively preventing rotation of said Y-axis drive pinion;an X-axis brake for selective engagement with said X-axis drive pinion for selectively preventing rotation of said X-axis drive pinion;and a workpiece manipulating apparatus operatively secured to said X-axis support.