Twin cam index drive

Details Twin cam index drive Twin cam index drive

1981-12-07

1984-06-05

Braun, Leslie A.

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74821, 74 57, 74567, B23B 2924, B23Q 1700

Patent

active

044521030

ABSTRACT:
An improved dual cam indexing drive assembly (10) is disclosed which is well suited for use in driving various types of rotational, linear, and/or reciprocating work transfer apparatus (12). The drive system (10) utilizes primary and secondary rotatable cams (32, 34) supported on and driven by a common shaft (36) coupled to a power source (24) via suitable gear reduction (30), clutch and/or brake means. Aligned primary and secondary cam followers (54, 56, 58 and 64, 66, 68) are provided on the moving transfer apparatus (14), the primary cam followers (54, 56, 58) being designed to operatively engage cam grooves (46, 48) provided on both primary and secondary cams (32, 34) whereas the secondary cam followers (64, 66, 68) cooperate only with cam grooves (48, 50, 52) provided on the secondary cam (34) to drive the work transfer apparatus (12) between successive work stations.

REFERENCES:
patent: 1228496 (1917-06-01), Turner
patent: 2440674 (1948-05-01), Bell
patent: 2852960 (1958-09-01), Brems
patent: 2857787 (1958-10-01), Natalis
patent: 3025709 (1962-03-01), Brems
patent: 3029652 (1962-04-01), Brems
patent: 3818770 (1974-06-01), Sievers
patent: 4031764 (1977-06-01), Curtis
Expert Automation brochure Entitled "Reciprocating Shuttle Drives".
Motion Manufacturing Inc. Precision Index Drives for Rotary Motions Precision Turntable of the E22 Series.

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