US3862564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine press with positive cam driven sliding bed and cam activated auxiliary systems
Assignee: Individual
•
Filing: 1973-11-20
•
Granted: 1975-01-28
•
Expires: 1993-11-20
Abstract
Abstract A machine press is disclosed having a base and vertical supports upstanding therefrom, a motor-driven crankshaft rotatably mounted in the vertical supports, and a ram mounted for vertical sliding movement driven by a connecting rod interconnecting the crankshaft and the ram. A bed is mounted for horizontal sliding movement under the ram, and is driven by a cam engaging two cam followers upstanding from the bed. The cam is connected to a shaft which is driven from the crankshaft through two-to-one reduction bevel gears. The cam is symmetrical, and provides two zero velocity positions of the bed coordinated with the lowermost position of the ram. Die sets comprising a plurality of steppedheight dies arrayed parallel to the motion of the sliding bed are mounted in the machine press; the lower half of the die set being mounted on the sliding bed, and the upper half being mounted on the ram. The dies come together for a stamping operation when the bed is at a first zero velocity position, and the dies are indexed one die for transfer operations when the bed is at its second zero velocity position. Additional cams are mounted on the second shaft, and these cams operate sensors controlling auxiliary devices, such as parts ejectors and missing parts detectors.
Inventors
- 👤 Robert Blase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:05
CPC Classifications
B; B21; B21J; B21J13/00; B21J13/08; B21D; B21D43/00; B21D43/02; B21D43/04; B21D43/05; B21J9/00; B21J9/02; B21J9/022
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
123 words
A machine press comprising: A. a base and supports upstanding therefrom; B. a first motor-driven upper shaft rotatably mounted in the supports upstanding from the base; C. a ram mounted for sliding movement perpendicular to the base; D. connecting means for driving the ram from the first upper shaft; E. a bed mounted for sliding movement on the base, said sliding movement being perpendicular to the movement of the ram; F. a second shaft driven by the first shaft; G. A first cam mounted on said second shaft adjacent to the bed; H. cam followers upstanding from the bed and engaged by the first cam, wherein rotation of the second shaft and the first cam mounted thereon causes sliding movement of the bed.
Claim 2
Dependent Claim
123 words
A machine press comprising: A. a base and supports upstanding therefrom; B. a first motor-driven upper shaft rotatably mounted in the supports upstanding from the base; C. a ram mounted for sliding movement perpendicular to the base; D. connecting means for driving the ram from the first upper shaft; E. a bed mounted for sliding movement on the base, said sliding movement being perpendicular to the movement of the ram; F. a second shaft driven by the first shaft; G. A first cam mounted on said second shaft adjacent to the bed; H. cam followers upstanding from the bed and engaged by the first cam, wherein rotation of the second shaft and the first cam mounted thereon causes sliding movement of the bed.
Claim 3
Dependent Claim
38 words
A machine press as defined in claim 1 and further comprising: I. at least one additional cam mounted on said second shaft; and J. sensor means activated by said additional cam for controlling the operation of auxiliary devices.
Claim 4
Dependent Claim
22 words
A machine press as defined in claim 1 wherein the second shaft is driven by the first shaft through two-to-one reduction gears.
Claim 5
Dependent Claim
24 words
A machine press as defined in claim 3 wherein said first and second shafts are perpendicular, and wherein the reduction gears are bevel gears.
Claim 6
Dependent Claim
56 words
A machine press as defined in claim 3 wherein the first cam is symmetrical and provides a first zero velocity position of the bed when the ram is in closest proximity to the bed, and further provides a second zero velocity position of the bed when the ram is next in closest proximity to the bed.
Claim 7
Dependent Claim
93 words
A machine press as defined in claim 5 wherein the first half of a multiple-die die set is mounted on the vertical ram and the second half of the multiple-die die set is mounted on the sliding bed and wherein the dies of the first and second halves of the die set are aligned in the first zero velocity position of the bed for forming operations, and wherein some of the dies of the first and second die sets are aligned in the second zero velocity position of the bed for transfer operations.
Claim 8
Dependent Claim
17 words
A machine press as defined in claim 2 wherein one of auxiliary devices is a parts ejector.
Claim 9
Dependent Claim
19 words
A machine press as defined in claim 2 wherein one of the auxiliary devices is a missing parts detector.
Claim 10
Dependent Claim
38 words
A machine press as defined in claim 1 and further comprising: I. at least one additional cam mounted on said first shaft; and J. sensor means activated by said additional cam for controlling the operation of auxiliary devices.
Claim 11
Dependent Claim
97 words
A machine press as defined in claim 9 wherein one of the auxiliary devices is a bed position sensor comprising: a. a first micro-switch operated by the bed in a first position; b. a second micro-switch operated by the bed in a second position; c. means connecting the first micro-switch, the second micro-switch, and the sensor means in parallel, wherein the additional cam mounted on the first shaft is designed to change the condition of the sensor means during a portion of the period when either the first or second micro-switch is operated by the sliding bed.
Claim 12
Dependent Claim
93 words
The machine press defined in claim 8 wherein the missing parts detector comprises a completed part ejection conduit positioned to receive each completed part ejected from between die parts respectively mounted on the ram and the bed, and a proximity sensor juxtaposed to the conduit and connected to produce an output signal in response to the passage of each completed part through the conduit, and a stop alarm unit connected to receive said output signals and to stop the press operation if an output signal is not generated during each press operating cycle.
Claim 13
Dependent Claim
33 words
The machine press defined in claim 11 wherein the conduit extends laterally toward a remote collection point, and further including an air jet directed to propel each ejected part into said ejection conduit.
Claim 14
Dependent Claim
28 words
The machine press defined in claim 11 wherein said ejection conduit has an entrance portal positioned directly below the ejected parts, whereby they are delivered into said portal.
Claim 15
Dependent Claim
123 words
A machine press comprising: A. a base and supports upstanding therefrom; B. a first motor-driven upper shaft rotatably mounted in the supports upstanding from the base; C. a ram mounted foR sliding movement perpendicular to the base; D. connecting means for driving the ram from the first upper shaft; E. a bed mounted for sliding movement on the base, said sliding movement being perpendicular to the movement of the ram; and F. a missing parts detector comprising a conduit through which each completed part is ejected, and a proximity sensor associated with the conduit and providing an output signal to a stop alarm unit connected to stop press operation if a completed part sensing output signal is not transmitted during any operating cycle.
Claim 16
Dependent Claim
123 words
A machine press comprising: A. a base and supports upstanding therefrom; B. a first motor-driven upper shaft rotatably mounted in the supports upstanding from the base; C. a ram mounted foR sliding movement perpendicular to the base; D. connecting means for driving the ram from the first upper shaft; E. a bed mounted for sliding movement on the base, said sliding movement being perpendicular to the movement of the ram; and F. a missing parts detector comprising a conduit through which each completed part is ejected, and a proximity sensor associated with the conduit and providing an output signal to a stop alarm unit connected to stop press operation if a completed part sensing output signal is not transmitted during any operating cycle.
References Cited (Backward Citations)
US1426039A
Cited
US2663275A
Cited
US2886886A
Cited
US3031698A
Cited
US3247533A
Cited
US3319087A
Cited
US3369387A
Cited
US3555865A
Cited
US3527073A
Cited
US3555861A
Cited
US3541834A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-27 | 1978-07-29 | 1979-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-27 | 1982-07-29 | 1983-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-27 | 1986-07-29 | 1987-01-28 | $7700.00 | Window Closed / Lapsed |