Machine element or mechanism – Mechanical movements – Reciprocating or oscillating to or from alternating rotary
Patent
1997-07-24
1999-08-10
Herrmann, Allan D.
Machine element or mechanism
Mechanical movements
Reciprocating or oscillating to or from alternating rotary
7449003, 7449009, 475286, 475295, 901 16, 901 23, 901 25, B25J 902, F16H 1904, F16H 344
Patent
active
059341416
ABSTRACT:
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.
REFERENCES:
patent: 3972280 (1976-08-01), Swatik et al.
patent: 4132318 (1979-01-01), Wang et al.
patent: 4600358 (1986-07-01), Graf
patent: 5476358 (1995-12-01), Costa
patent: 5533858 (1996-07-01), Costa
Herrmann Allan D.
Thomte Dennis L.
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