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43773653 Method and apparatus for ultrasonic bonding
NEW PATENTS
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A D J U S T A B L E SOCKET W I T H D E T A C H A B L E OR L O C K A B L E ENGAGING
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HANDLE
Michae Brodie
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COMPONENT
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An electronic control system for a machine tool employs a monitoring system for monitoring the absolute position of a reversible (and linearly or rotationally) movable moving m e m b e r in the machine tool. The monitoring system includes a clock, a digital feedback position counter having a predetermined count range, an exciter, a feedback device responsive to movement of the movable member, a digital position storage device, a zero crossing detector, and a zero position counter. The feedback position counter, which operates at a clock frequency, controis the exciter which provides a pulsed exciter signal to the feedback device. The feedback position counter also provides a position count Nc to the position storage device and to the zero position counter, The feedback device provides, through a zero crossing detector, a pulsed feedback signal to the position storage device (and to the zero position counter) and the phase shift between the exciter signal and feedback signal is linearly related to the displacement of the moving member. The position storage device provides a continuously updated position number Np which is also linearly related to member displacement, i.e., the position of- the member. The zero position counter typically comprised of a synchronous 4-bit bi-directional binary counter provides a zero position count Nz to the representative of the net number of times the position number Np passes through zero between consecutive samples. A computer, coupled to the position storage device and to the zero position counter, processes the position number Np and the zero position number to unambiguously detemine the speed of the moving member.
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The adjustable socket comprises a plurality of fingers pivoted by one end thereof to a socket body and enclosed within a partially rotatable shell covering the socket body. A spiral slot in the shell is engaged by a pin or the like extending f r o m the body so that when the shell is partially rotated, the shell extends or retracts axially relative to the body pottion thus opening or closing the distal ends of the fingers due to the engagement o f the outer surfaces o f the distal ends of the fingers with the curved inturned end o f the shell. This shell and fingers can be detachably locked in the desired position. This enables the fingers to adjust in order to grasp or grip a nut or bolt within the size range governed by design parameters. A spring reacts between the shell and the body portion normally retracting the shell so that the fingers are in the widest position. A handle assembly is secured to the inner end of the body and may be connected to the body by means of a clutch assembly connected when the handle assembly is pushed downwardly towards the body portion against spring pressure. Alternatively, the clutch assembly may be detachably locked in engagement between the handle c o m p o n e n t and the body portion.
43773653 METHOD AND APPARATUS FOR ULTRASONIC
BONDING
176
NEW PATENTS
Thomas E Salzer; Michael S Masheff assigned to Raytheon Company
the slides and the respective nut senses the displacement of the nut relative to the slide and transmits this information to the
A method and apparatus for providing high reliability ultrasonic bonds by monitoring the force required to separate the bonding tool from the wire after the bonding operation. This force which is required to break an incidental bond between the tool and the wire is related to the quality of the primary bond of the wire to a conductor terminal. The output of a transducer is proportional to the force and it may be coupled to a visual display, alarm, or computer for trend analysis.
computer. 4371012 A P P A R A T U S FOR W O R K I N G LEADS OF E L E C T R I C A L C O M P O N E N T S Thomas Weresch , ~ i ~_i. ~ - ,e. ~ .... ~ . v - - _ ~ - - ~ J ~t-?
4372183 PROGRAM
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CONTROLLED
PUNCHING
AND
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NIBBLING
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MACHINE Esk Lehtinen assigned to Pullmax Aktiebolag
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_. The coordinate slides of a computer controlled punching and nibbling machine are coupled by resilient elements with respective nuts engaging screws driven by motors controlled by computer programming. The resilient coupling between the slides and the respective nuts permits the motors to run and thereby drive the nuts during periods when the slides are held stationary by engagement of the punching and nibbling tool with a workpiece mounted on the upper slide. As soon as the tool is disengaged from the workpiece, the workpiece is quickly moved to the next position by energy stored in the resilient elements. A sensor between each of
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An apparatus for working on the leads of electrical components has a component inlet or supply unit taking the form, for example, of a chute with a guideway opening, or with an inlet for the supply o f components fixed to belts or paper tapes. The apparatus furthermore has two tools, each placed on a tool support. The two tools are moved together for forming the c o m p o n e n t l e a d s , t h e l e a d s being placed in the path of the tools. The tools are supported on a carriage, which may be moved in a direction parallel to the direction of input of the components. Furthermore, the tools are moved together in timed relation to input of the components and the working motion of the carriage. In the case of such an apparatus, for making a better design of the working steps and events taking place on operation as the apparatus is moved, and for making adjustment more readily possible, each tool support has a guide face parallel to the direction of working motion, the length o f each guide face being at least equal to the length of the working motion, driving levers, which are turningly supported on a base-plate, resting against the guide faces. The driving levers are worked by at least one tool shutting cam
.
. ,
. ....
. .
+
. +
.
4374481
_.
- - - + .:. . .
. . . ."" +, .
+
*°
~i 0
":+.
-
,
.. ;~j_+.+ - -.- .~. .vt.se~'
o . ~
,
-. . . . . . .,a..
,+-
I
175
•
A D J U S T A B L E SOCKET W I T H D E T A C H A B L E OR L O C K A B L E ENGAGING
- ,+......
HANDLE
Michae Brodie
9
.....
COMPONENT
":I 4~311
]
12
An electronic control system for a machine tool employs a monitoring system for monitoring the absolute position of a reversible (and linearly or rotationally) movable moving m e m b e r in the machine tool. The monitoring system includes a clock, a digital feedback position counter having a predetermined count range, an exciter, a feedback device responsive to movement of the movable member, a digital position storage device, a zero crossing detector, and a zero position counter. The feedback position counter, which operates at a clock frequency, controis the exciter which provides a pulsed exciter signal to the feedback device. The feedback position counter also provides a position count Nc to the position storage device and to the zero position counter, The feedback device provides, through a zero crossing detector, a pulsed feedback signal to the position storage device (and to the zero position counter) and the phase shift between the exciter signal and feedback signal is linearly related to the displacement of the moving member. The position storage device provides a continuously updated position number Np which is also linearly related to member displacement, i.e., the position of- the member. The zero position counter typically comprised of a synchronous 4-bit bi-directional binary counter provides a zero position count Nz to the representative of the net number of times the position number Np passes through zero between consecutive samples. A computer, coupled to the position storage device and to the zero position counter, processes the position number Np and the zero position number to unambiguously detemine the speed of the moving member.
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The adjustable socket comprises a plurality of fingers pivoted by one end thereof to a socket body and enclosed within a partially rotatable shell covering the socket body. A spiral slot in the shell is engaged by a pin or the like extending f r o m the body so that when the shell is partially rotated, the shell extends or retracts axially relative to the body pottion thus opening or closing the distal ends of the fingers due to the engagement o f the outer surfaces o f the distal ends of the fingers with the curved inturned end o f the shell. This shell and fingers can be detachably locked in the desired position. This enables the fingers to adjust in order to grasp or grip a nut or bolt within the size range governed by design parameters. A spring reacts between the shell and the body portion normally retracting the shell so that the fingers are in the widest position. A handle assembly is secured to the inner end of the body and may be connected to the body by means of a clutch assembly connected when the handle assembly is pushed downwardly towards the body portion against spring pressure. Alternatively, the clutch assembly may be detachably locked in engagement between the handle c o m p o n e n t and the body portion.
43773653 METHOD AND APPARATUS FOR ULTRASONIC
BONDING
176
NEW PATENTS
Thomas E Salzer; Michael S Masheff assigned to Raytheon Company
the slides and the respective nut senses the displacement of the nut relative to the slide and transmits this information to the
A method and apparatus for providing high reliability ultrasonic bonds by monitoring the force required to separate the bonding tool from the wire after the bonding operation. This force which is required to break an incidental bond between the tool and the wire is related to the quality of the primary bond of the wire to a conductor terminal. The output of a transducer is proportional to the force and it may be coupled to a visual display, alarm, or computer for trend analysis.
computer. 4371012 A P P A R A T U S FOR W O R K I N G LEADS OF E L E C T R I C A L C O M P O N E N T S Thomas Weresch , ~ i ~_i. ~ - ,e. ~ .... ~ . v - - _ ~ - - ~ J ~t-?
4372183 PROGRAM
:,-~ .1- ";\';~: .D -,~.d
CONTROLLED
PUNCHING
AND
.
NIBBLING
~
MACHINE Esk Lehtinen assigned to Pullmax Aktiebolag
'
. -~.
--
-- "
:~ i .,.ff~ ., ~ _~ ~ ' , i~ ; ~ t l ~ ~t
_ ,* -
,
~ ~'-~s-'--~,..,,~-~,-,r~
~ ~ / ~ ~d "
,,
~
_. The coordinate slides of a computer controlled punching and nibbling machine are coupled by resilient elements with respective nuts engaging screws driven by motors controlled by computer programming. The resilient coupling between the slides and the respective nuts permits the motors to run and thereby drive the nuts during periods when the slides are held stationary by engagement of the punching and nibbling tool with a workpiece mounted on the upper slide. As soon as the tool is disengaged from the workpiece, the workpiece is quickly moved to the next position by energy stored in the resilient elements. A sensor between each of
~,,~ :,~ .~ _~
-
~
r
~+\,
~
An apparatus for working on the leads of electrical components has a component inlet or supply unit taking the form, for example, of a chute with a guideway opening, or with an inlet for the supply o f components fixed to belts or paper tapes. The apparatus furthermore has two tools, each placed on a tool support. The two tools are moved together for forming the c o m p o n e n t l e a d s , t h e l e a d s being placed in the path of the tools. The tools are supported on a carriage, which may be moved in a direction parallel to the direction of input of the components. Furthermore, the tools are moved together in timed relation to input of the components and the working motion of the carriage. In the case of such an apparatus, for making a better design of the working steps and events taking place on operation as the apparatus is moved, and for making adjustment more readily possible, each tool support has a guide face parallel to the direction of working motion, the length o f each guide face being at least equal to the length of the working motion, driving levers, which are turningly supported on a base-plate, resting against the guide faces. The driving levers are worked by at least one tool shutting cam