US4092593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit board testing machine
Assignee: Siemens AG
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Filing: 1977-05-02
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Granted: 1978-05-30
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Expires: 1997-05-02
Abstract
Abstract A circuit board testing machine for positioning one or more test probes relative to a circuit board and wherein the position of the test probes can be automatically positioned and locked in the desired position and in which the circuit board can be replaced in a holder that is automatically moveable against the test probes so as to supply test signals to a measuring device.
Inventors
- 👤 Hermann Wolk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:34
CPC Classifications
G; G01; G01R; G01R1/00; G01R1/02; G01R1/06; G01R1/067; G01R1/073; G01R1/07307; G01R1/07314; G01R1/07328; G01R1/06705; G01R1/07392
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
128 words
A machine for testing a plurality of terminal and/or test points of an assembly arranged on a support to a measuring circuit through at least one test pin, wherein said test pins (5) are arranged to be movable approximately parallel to the surface of said support (10), a carrier (19) moveable in two coordinate directions, a pair of controllable drive devices (26, 31) connected to move said carrier to located said test pins (5) when these are in the rest position and to individually engage one of said test pins and transport it to a desired coordinate location of the terminal or test points which are to be contacted, and that contacting is effected by virtue of relative movement between the test pins (5) and said support (10).
Claim 2
Dependent Claim
128 words
A machine for testing a plurality of terminal and/or test points of an assembly arranged on a support to a measuring circuit through at least one test pin, wherein said test pins (5) are arranged to be movable approximately parallel to the surface of said support (10), a carrier (19) moveable in two coordinate directions, a pair of controllable drive devices (26, 31) connected to move said carrier to located said test pins (5) when these are in the rest position and to individually engage one of said test pins and transport it to a desired coordinate location of the terminal or test points which are to be contacted, and that contacting is effected by virtue of relative movement between the test pins (5) and said support (10).
Claim 3
Dependent Claim
37 words
A machine for testing according to claim 1 including a base plate and wherein said test pins (5) are secured to rails (4), which are longitudinally displaceably mounted in rotatable blocks (3) mounted on said base plate.
Claim 4
Dependent Claim
89 words
A machine according to claim 2, a first moveable body (28) mounted so as to be driven with a first screw spindle (25) relative to said base plate in the direction of a first coordinate, and said first moveable body moves on first guide rods (24), and said first moveable body carries second guide rods (29) which are arranged in the direction of a second coordinate, and a second moveable body (33) which is driven with a second screw spindle (32) and on which said carrier (19) is mounted.
Claim 5
Dependent Claim
36 words
A machine according to claim 3 wherein said carrier (19) includes a longitudinally displaceable transport pin (36) which ends in a point and which is engageable with centering recesses (38) formed in said test pins (5).
Claim 6
Dependent Claim
33 words
A machine according to claim 4 wherein said rails (4) for the test pins (5) are provided with longitudinal grooves (7) which accommodate electrical lines (6) which connect to a measuring circuit (9).
Claim 7
Dependent Claim
77 words
A machine according to claim 5 wherein said rotatable blocks (3) are mounted on the side of said base plate (1) which faces towards the support (10), and said first and second guide rods (24,29) are mounted on the opposite side, and said carrier (19) which can move along the guide rods (24, 29) engages said test pins through a recess (1a), corresponding to the coordinate range which can be covered formed in the base plate (1).
Claim 8
Dependent Claim
61 words
A machine according to claim 6 wherein a pair of remote-controlled drive means (26, 31) are provided which have their output shafts coupled to said screw spindles (25, 32) either to execute rotating steps of given magnitude in dependence upon an adjustable number of timing pulses, or to execute a continuous rotating movement in dependence upon control pulses of adjustable duration.
Claim 9
Dependent Claim
49 words
A machine according to claim 7 wherein said of said test pins (5) is of coaxial construction, and possesses a hollow inner conductor (42) into which a needle (45) is mounted and with a contact body (46) at its end and said needle is spring-mounted in the longitudinal direction.
Claim 10
Dependent Claim
37 words
A machine according to claim 8 wherein springs (48, 50) are provided, which act upon the rails (4) to move the test pins (5), and return the latter to their rest positions on the completion of measurements.
Claim 11
Dependent Claim
39 words
A machine according to claim 9 including electromagnet brake means which prevent further rotating movements of said blocks (3) and longitudinal displacements of said rails (4) as soon as the test pins (5) have reached their desired test positions.
References Cited (Backward Citations)
US3437929A
Cited
US3590372A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-29 | 1981-11-28 | 1982-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-29 | 1985-11-28 | 1986-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-29 | 1989-11-28 | 1990-05-30 | $7700.00 | Window Closed / Lapsed |