Nibbling machine having automatically adjustable feed control
US4104940A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 1976 |
| Grant date | Aug 8, 1978 |
| Priority date | — |
| Expiry date | Aug 11, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/6475
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A nibbling machine comprises a workpiece support which is driven by separate drive motors in longitudinal and transverse directions to shift the workpiece during the times at which it is not contacted by a punch which is arranged to reciprocate over the workpiece and to contact it and effect the nibbling thereof. A rotary control member is rotated in timed relationship to the means for driving the punch and it is connected to each of the motors for driving the workpiece support in a manner to start and stop these motors when the punch is raised off the workpiece for feeding the workpiece. The rotary member advantageously drives through an eccentric of adjustable magnitude to a fluid piston movable in a cylinder to displace a control fluid selectively to an oil volume dispenser which supplies oil to each of the fluid drive motors for operating the workpiece support in the transverse and longitudinal directions. Variations in the eccentric drive will cause variations in the timing of the drive of the fluid motors. The same control may be effected by an electrical drive system wherein the rotation of the control member causes actuation of an electric signal in proportion to the rotati…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.