JPH0370412A - Apparatus and method for stripping armor from wire at controllable depth - Google Patents

Abstract

PURPOSE: To strip an insulation coat accurately in safety by an arrangement wherein a cutter means cuts into the insulator up to a controlled depth and a carriage pulls a cut piece of the insulator to strip the insulator longitudinally. CONSTITUTION: A carriage is provided with a wire guide/centering unit for centering a wire accurately while holding independently from the movement of a cutter. A geared motor 134 controls the axial position of a cam 115 thus controlling the movement of cutters in the approaching direction and the cutting depth into the wire insulator when a spindle is turning. A main controller operates the motor 134 to open the cutters (pull in) and then operates a carriage motor to shift the carriage to a position corresponding to the length of the insulator. Furthermore, the positioning motor 134 is operated by the controller to shift the cutter radially inward by a controlled amount in order to cut the insulator radially by a selected thickness. Finally, the carriage is shifted radially and the cutter is pulled axially thus removing the insulator from the wire.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a technique for stripping armor or insulation from a wire or cable core at the end of a wire or cable, and more particularly for wires or cables of different dimensions. for operable and controlled wire end stripping functions;
Concerning a compact and automatically operable device.

Stripping wire ends manually or using manually controlled tools is time consuming and inaccurate, and can result in damage to the wire core. many. The problem becomes more acute as the wire diameter increases. I mean,
Very fine insulated wire is difficult to grip and handle, and as the thickness of the insulation decreases, damage to the core by gripping or stripping tools is almost inevitable. For example, gripping clamps that undergo circular translation gripping motions with axially movable conical tools create wire control and handling problems, including poor gripping and inaccurate centering of the wire, and lead to insulating material. This may interfere with the means by which the blade moves. Along with firm and precise gripping and centering of the wire being stripped,
Quickly and accurately strips insulation from wire ends of different diameters and dimensions without damaging the wire core.
There is a need for an accurate, reliable, durable and compact stripping device.

SUMMARY OF THE INVENTION It is the main object of the present invention to provide a device and a method that meet the above needs.

Essentially, the apparatus of the invention comprises: a) a frame; b) clamping means on the frame for attaching a wire sheath at a location spaced from the end of the wire advanced past the clamping means; a clamping means that clamps laterally; C) a carriage on a frame that is vertically linearly movable towards and away from the wire clamping means; and d) at a position between the clamping means and the end of the wire. wire engagement guide means on the carriage for laterally engaging the wire sheath for accurate centering; e) a rotating spindle on the carriage and blade means on the spindle which are rotatable; , blade means for rotatingly cutting into the wire sheath at a location proximate the guide means carried independently of the spindle; f) cutting depth of the blade means into the sheath as the spindle rotates; g) means for controlling the depth of the blade; and a drive means, the carriage being retractable to longitudinally pull the sheath cut away from the wire.

The present invention provides means in the form of a cam for controlling the depth of cut of the blade means and an actuator for adjusting the position of the cam relative to the arm means for controlling the pivoting of the arm means. Another purpose of the invention is
The blade means is carried by arm means, and the arm means, cam and actuator are carried by the carriage. This structure is generally operable completely independently of the wire or cable centering means.

It is also an object of the invention to provide clamping means in the form of two clamping elements, which include a drive coupled to and operative to move them linearly towards or away from each other. . The clamping element preferably comprises two heads having parallel interlocking plates defining opposing or shaped jaws which are movable relative to each other to progressively surround and clamp the wire. ? I will.

having two crank arms, the arms having a pivoting free movement connection with the two heads to effectively move the heads relative to each other in response to rotation of the crank arms; It is also an object of the present invention to provide a clamping means drive including guide means for substantially linearly guiding the heads toward each other in response to movement. The drive means may include two drive rods carried by the frame and each coupled to a crank arm for rotating them clockwise and counterclockwise, respectively, about parallel axes. The drive means may also include a drive motor having a lost motion coupling with at least one of the rods, the rods having a lost motion coupling therebetween, and the motor driving one end of the one rod in one direction. The rotation causes the other rod to rotate in the opposite direction. This allows for direct transmission of clamping force from the muzzle to the head.

Accurately centered clamping of the wire or cable near the blade of the blade allows precise rotational cutting of insulation or armor from small or large wires or cables. Or, it can be realized without interfering with the movement of the blade toward the cable.
It is also an object of the present invention to provide an improved wire engagement guide or centering means with two guides. The wire engagement guide means includes a head, a crank arm, a shaft and a drive motor means operating in the same manner in the same manner as above for the axially immovable clamp. There is. This allows the use of two clamps, one on the frame and one on the carriage (both working in the same manner), to hold the wire or cable precisely at axially separated locations, and at the blade. Independent clamping and centering greatly simplifies and increases accuracy.

A further object of the present invention is to provide a method for accurately and efficiently stripping armor from an axially extending wire at a controllable depth. In the method, blade means operable to cut the sheath is employed with wire guide means operable to precisely guide the wire while cutting the wire, independent of operation of the blade means. Ru. The method includes: a) guiding the wire while cutting the wire;
b) advancing the wire guide means radially relative to the axis to position the guide means; and b) advancing the blade means radially relative to the axis to position the blade means. c) rotating the blade means to cut the armor, the radial advancement of the blade means being independent of the advancement of the wire guide means; and C) rotating the blade means about an axis to cut the armor. and d) preventing the wire guide means from rotating about an axis while the blade means is rotating, while the wire guide means is maintained close to the rotating blade means. Contains.

More specifically, the method comprises: a) a frame and a carriage on the frame that is axially movable in response to drive by a DC motor; and b) a second DC motor on the carriage. C) blade means radially movable toward and away from the wire sheath in response to actuation of the blade means; and C) blade means coupled and actuated to rotate the blade means about an axis to rotate the sheath. d) clamping means radially movable towards and away from the wire sheathing in response to actuation of the fourth DC motor; e) a fifth DC motor; radially movable guide means proximate the blade means, around and away from the wire sheath in response to actuation of the blade means.

The method employing such a device further comprises: f) actuating a fourth DC motor to cause the clamping means to clamp the wire sheath; and g) with the blade means retracted from the sheath means. h) actuating a third DC motor to rotate the blade means about an axis; h) actuating a fifth DC motor to rotate the guide means for positioning the wire in the threading direction while cutting the wire; i) for cutting the wire sheath;
activating a second DC motor to move the rotating blade means radially toward the wire sheath, independent of the positioning of the guide means; j) activating the first DC motor; and causing axial movement of the carriage thereby causing the blade means to separate the cut portion of the sheath from the wire.

These and other objects or advantages of the invention will be more fully understood from the following detailed description, along with the illustrated embodiments.

As shown in the illustrative drawings, particularly FIGS. 4 and 5, a frame 10 includes a horizontal base plate 11 and transverse plates 12 and 13 mounted longitudinally apart from each other on the base plate.
Contains. Fixed guide rods 14 and 15 are attached to plate 12
and 16, extending in the longitudinal direction, and supporting the carriage 16 to move back and forth as described later.

A housing 17 including portions 17a and 17b is carried by the frame and extends over the frame and carriage, and control device 18 may be carried by a housing cover 17c as shown in FIG. These controllers 18 are associated with a master controller, designated 19 in FIG. 1a.

The wire or cable 20, as seen in FIGS. 1 and 6, has the end of the wire threaded straight through an opening in the end wall 22 of the housing 17b to a position as seen in FIG. 3, for example. The part 20a has a closed blade 6 and 6.
4.

The control device 18 is then actuated into a clamping position in which the wire is spaced laterally by a fastening or clamping device 24 on the frame and straight longitudinally from the end 20a of the wire past the clamping device. Lying down and being clamped. Figures 3 and 11
In the figure, note the annular sheathing around the metal core of the wire. Wire 1. In other words, the cable may consist of a coaxial cable, for example.

The clamping device 24 can take the highly advantageous forms seen in FIGS. 7, 8 and 13. As shown in FIGS. 7 and 8, the clamping device includes two clamping elements in the form of heads 30 and 31, which heads are movable relative to each other and gradually surround the wire. Then clamp the wire while
A longitudinal axis 3 which is also the rotational axis of a rotating spindle, which will be described later.
Centering is also performed for 2. two heads 30 and 31
has parallel interlocking plates defining laterally opposed figure 7-shaped jaws which, as the jaws close over the wire or cable, Place and hold. therefore,
The head 60 has a parallel plate 30a with figure 7-shaped frames 30b and 30c, which plates are laterally separated, and the head 31 has a parallel plate 30a with figure 7-shaped frames 31b and 31c. 31a, which are also laterally spaced apart and interlock with plate 30a. 3 on head 31
An angled stop as in 1d can abut the edge 30b of the other head, limiting the closing of the jaws, such as when there is no wire between the jaws, thus leading to a minimum wire size. Clamping effects up to

The head rollers 0 and 31 are arranged by means of two crank arms 34 and 35, on which the head is carried, respectively, by means of free couplings 36 and 37, permitting relative pivoting of the head and arms, and by means of a linear movement of the head. are laterally displaced towards each other from allowing laterally opposing movements. Such straightness extends to the upper and lower lateral edges 30e, 3 of the head.
0f and 31e, parallel lateral guide shoulders 3 that can be engaged with 31f
This is achieved by a lateral guide 38 having 8a and 38b.

Coupling 36 includes a bin 36a on head 30 that is relatively movable within a generally vertical groove 36b in arm 34 as arm 34 pivots.

When the arm 35 rotates, the substantially vertical groove 3 of the arm 35
Pin 37a on head 31 that is relatively movable within 7b
Please note that. Note also the vertical adjustability of the guide 68 by means of tongue/m connections, indicated by filters 8e and 38f. These are accomplished using tightenable fasteners 38e' and 38f' associated with frame portion 13b and the tongue. Thus, a precise alignment of the apex of the V-shaped jaws with the axis 62 is achieved despite the lost-motion coupling, and inaccurate arcuate movements of the V-shaped heads towards each other are avoided.

The drive is carried by sleeves 40d and 41d mounted on frame plates 13 and 13a, with long parallel tri-blondes 4 rotating in opposite directions relative to and relative to each other.
0 and 41 are included.

As shown in FIG. 7, the rod 40 is connected to the lower end of the crank arm 34 at an end 40a, and the rod 41 is connected to the lower end of the crank arm 35 at an end 41a. The opposite end 41b of the rond 410 is connected via a free-moving tongue and groove connection 45 to a crank arm 43 which is rotatably driven by a motor or gear motor 44, which motor has a precisely controlled position on its output shaft. It has an eccentric 45a that moves within the groove 45b of the arm 43 so as to rotate the arm by a certain angle. The main controller 19 has an output 44d for controlling the motor (forward and backward movement and degree of forward and backward movement). The rod 41 is connected to the rod 40 via arms 46 and 47 rigidly connected to the rods and a free tongue and groove connection 48 between the arms;
The precise angle of counterclockwise rotation of arm 46 and rod 40 provides the same precise angle of clockwise rotation of arm 47 and rod 40. Rotated arm positions 46a and 47a
Show the spelling; ゛This two main a'3-9. The clamping force is provided by the motor and is limited and controlled by the degree of electrical excitation of the motor, which is controlled at 19, i.e. selectable at 19.

Carriage 16 includes elongated guide sleeves 14 and 15 that are linearly movable toward and away from the wire clamping device described above. The carriage is shown including upright plates 50 and 51, which are longitudinally separated and have holes 50a and 51a for receiving sleeves 14 and 15, to which the plates are coupled. frame plate 13.
A bearing 53 slidably receives the sleeves 14 and 15. As shown in FIGS. 4 and 5, a carriage positioning motor 55 is carried on the frame plate 12 via a mounting plate 12a, which motor is threadedly engaged with a nut 57 (see FIG. 4). (see)
The nut is rigidly coupled to a carriage brake l-51 for longitudinally horizontally moving the carriage (and positioning it against the end of the wire, such as the wire armor cutter, and then against the clamping device mentioned above).A servo motor 55 is coupled to the main controller 19 at 59. A manual selector 60 in the controller allows precise positioning of the carriage via an encoder on the motor.

The control may be digital or analog.

the carriage is provided with a wire engagement guide centering device;
It laterally engages the sheath of the wire at a location 62 between the clamping device 24 and the end 20a of the wire and near the cutter blades 66 and 64.

The purpose of the device is to cut armor to a controlled depth while the blade rotates around the wire and advances inwardly toward the core of the wire, close to the blade but independent of the blade movement. to hold the wire and center it accurately. This is done by wire 6 by means such as a cone which is not independent of the actuation of the blade.
Avoid the issue of dispensing.

A guiding and centering device is shown in FIGS. 9, 10 and 12 and includes two clamping parts in the form of heads 70 and 71, the heads being movable relative to each other. , gradually surrounding the wire, guiding and clamping the center against and in alignment with the axis 32. head 70
and 71 are opposed t5-parallel, interlocking plates defining laterally opposed V-shaped jaws, i.e. jaws having the shape of a prism; That is, as it closes over the cable, it grips the wire or cable in the center. Therefore head 7
0) has a parallel plate 70a with single-shaped picture frames 70b and 70c, which plates are laterally separated, and the head 71 has V-shaped picture frames 71b and 71c. It has parallel plates 71a, which are also laterally separated and interlocked with plate 70a. 7 on head 70
An angular stop such as 0d is located at the edge 71 of the other head.
b and 71c to limit the relative closure of the jaws, such as when no wire or cable is present between the jaws, i.e. to limit the space between the jaws to a fully closed condition. do. Clamping and centering effects up to the smallest wire size in the vicinity of the blade or cutter are thus easily achieved.

The head is moved by two crank arms 74 and 75, on which the head is respectively carried, by means of free movement couplings 76 and 77, allowing relative pivoting movement of the head and arms and in a linear lateral direction of the head. are laterally displaced towards each other while allowing opposing movements. Such straightness is achieved by parallel lateral guiding shoulders 78a that are engageable with the upper edge 71e of the head 71 and the lower edge 70e of the head 70.
and 78b.

Note also the clearances 70f and 71f which allow limited up and down pivoting of the head during wire centering.

Coupling 76 causes a substantially vertical groove 76b in arm 74 to rotate as arm 74 rotates about the axis of tri-blonde 80.
It includes a bin 76a on the head 70 that is relatively possible within. Also note the bin 77a on the head 71 which moved within the generally vertical groove 77b of the arm 75 as the arm 75 rotated about the tri-blonde 81. The lateral position of the bottle relative to the head is adjustable by means of threaded shank 76c and 77c carrying the bottle and having threaded connections shown at 76d and 77d. Accurate linear movements of the jaws towards the wire or cable are thus achieved and inaccurate circular movements of the jaws are avoided.

Adjusters 170 permit vertical positioning of guide 78 relative to the frame of the device. For example, threaded connector 171 connects protrusion 172 of guide 78 to frame portion 174.
It extends between the upper protrusion 173 and rotates to move up and down.

The protrusion 173 rotatably supports the connector 171.

The drive device is located in sleeves 14 and 15 and carried on the carriage by two long parallel tri-blonds 80.
and 81 (see FIG. 10), which rotate about longitudinal axes 80b and 81b relative to each other and in relatively opposite directions. Rod 80 is connected to the lower end of crank arm 74 at end 80a, and rod 81 is connected to the lower end of arm 85 at end 81a (see FIG. 9).
.

The opposite end of the rod 81 is connected to a crank arm 83 that is rotationally driven by a servo motor or a gear motor 84 via a non-moving tongue and groove connection 85. The motor has an eccentric 85a on its output shaft 85b, which moves within a groove 85c in an arm 86 to rotate the arm in a precisely controlled angle. The main controller 19 has an output 84a for controlling the motor (forward/reverse rotation and degree of forward/reverse rotation). The rod 81 is connected to the rod 80 via arms 86 and 87 rigidly connected to the rods and a free-moving tongue-and-groove connection 88 between the arms, allowing precise counterclockwise rotation of the arm 76 and rod 81. The degree provides the same precise degree of clockwise rotation of arm 77 and rod 80. Motor 84 is rigidly attached to carriage plate 51 via support arm 90. The centering (clamping) force is provided by the torque of the motor and is limited and controlled by the degree of electrical excitation of the motor 84, the current excitation controlled at 19 being selectable in the device 19.

A rotating spindle assembly 100 is provided on the carriage and blades or cutters 63 and 64 are carried on the spindle and rotate to cut into the wire armor at a location proximate or near the wire support clamping device 62. go. For example, the spindle includes a horizontal shaft 101 defining an axis of rotation 32, which axis is coaxial with the wire, and the clamping and centering described above is performed by means of the clamping and centering devices, regardless of the size of the wire. Determined by structure and operation. The shaft 101 has one end 1 supported by a bearing 102 of the carriage plate 51.
01a, and the opposite end 101b of the shaft has a hub 1
03 is supported to rotate within a bearing 104 of the carriage plate 50. The shaft includes a motor 105 supported by the frame plate 51 of the support plate 106 shown in FIG. 5, a drive pulley 107 driven around the longitudinal axis by the motor, a driven pulley on the spindle shaft, and a drive hooked on these boots. It is rotated by a drive device including a belt 109. Motor 1
05 is coupled to the main controller 19 via a connection 105a. The hub 106 has pivot positions 112 and 11 on the hub.
At 6, two longitudinally extending arms 110
and 111 are pivotally mounted. Blades or cutters 63 and 64 are attached to the ends 110a and 111a of these arms and move generally radially toward each other as shaft 101, hub 103, and arms 110, 111 rotate about axis 62.

Devices are provided on the spindle to control the depth of cut of the blades into the sheathing, such as by controlling the movement of the blades and their cutting edges 63a and 64a towards each other as the spindle rotates. Please refer to FIG. 11 and the incision degrees tl and t2. The device includes a cam in the form of an annular cone 115 mounted on the shaft for relative axial movement therealong, which has a cam in the form of an annular cone 115 between the conical bore 118 and the outer surface of the shaft 101. via bearings 116 and 117. Arms 110 and 11
1 are rollers 120 and 121 attached to their right ends.
9, which abut the cone at diametrically opposed locations 120a and 121a. A compression spring 122 between the scissor arms yieldably biases the arms and followers into abutment with the conical surface. This action can be seen in Figures 9 and 10 as the core is independent of the operation of the device elements, so one does not influence the other, i.e. there is no complication; allow movement in a straight line, i.e. arm 1
It is not movement on an arc due to pivoting of either arm in embodiments 10 and 111.

The cone 115 is rotated by the shaft 101 via a pin 127 that extends radially into the cone through an axial groove 101a' in the shaft. The pin also acts to move the cone vertically on the shaft in a controlled manner in response to the vertical movement of the link 128 extending axially within the bore 129 of the shaft and projecting at 128a. The left end of the link is connected to pin 127 as shown in FIG. 3, and the right end of the link is connected to support 130 using nut 131. Support 130 does not rotate, but allows link 128 to rotate with the shaft via bearing 132. A nut 131 is threaded onto a threaded shaft 133 whose housing is rotated under the control of a step or gear motor 164 whose housing is mounted to the carriage plate 51 at 135. The motor therefore controls the axial position of the cam 115, thereby
As the spindle rotates, the movement of the blades toward each other and the depth of their cut into the cable or wire insulation is precisely controlled. Bearing 162 not only allows rotation of link 128 relative to support 130;
Orient the link axially. A lip connection 136 from the main controller 19 to the motor 134 serves to control the degree of rotation of the motor and thus the depth of cut into the cable or sheath or insulation of the blade. For example, encoded via the control device 19, the encoder of the motor controls the degree of rotation of the rotor of the motor (
One revolution of the motor rotor may correspond to between 0.10 and 0.100 inches of cutting jaw movement).

Referring to Figures 2, 3 and 14, the blades are initially closed towards each other to provide a barrier to longitudinal movement of the cable or wire. The wire is then inserted through the opening 21 until its end 20a abuts the closed blade, and its axial position is controlled by the carriage drive motor 55 and the main controller 19.
Selected by the operation of. See steps 140 and 141 in FIG. 14(a) and FIG. At this time, the carriage is at a predetermined position in the vertical direction.

The master controller is then actuated to begin the cycle. Motor 44 is activated to cause the clamping device to clamp the wire. See FIG. 14(b) and step 142 of FIG.

The main controller then operates the motor puller 134 to open (retract) the blade, and the main controller 19 operates the carriage motor 5 to open (retract) the blade.
5 to move the carriage axially to a selected position corresponding to the length of insulation or sheathing to be removed at a selected distance from the wire or cable end 20a. . 14(c)=(See step 143 in FIG. d1 and FIG. 2).

The wire centering of 62 by actuation of motor 84 causes the apparatus to then close and move jaws 70 and 71 linearly, and the spindle is then rotated by motor 105. See FIG. 14(f) and step 144 of FIG. A blade positioning motor 134 is then actuated by the controller to move the blade radially inward a controlled amount as the spindle rotates to cut a selected radial thickness of the armor or insulation. Section 14(f)
See FIG. 2 and step 145 in FIG.

Motor 105 is then actuated to stop rotation of the spindle and centering device 62 is released by motor 84, all under master controller 190 control. Section 14(g)
See FIG. 2 and step 146 in FIG. The carriage movement motor 55 is actuated in reverse to retract the carriage and cause the closed blades to pull the cut armor device 60 from the wire. See FIG. 14(h) and step 147 of FIG. Clamping heads 30 and 31 are opened by motor 44 to release the wire or cable and allow it to be withdrawn in the direction indicated at 161 in Figure 14 (iJ). The element is then in the position of Figure 14(a). Return to

Referring to FIG. 15, a carriage positioning DC motor 55 is coupled to a driver amplifier 20 associated with the main controller 19 at 55a and 55b. An encoder 201 driven by a motor shaft is coupled in feedback relation at 199 to a microprocessor 19a, which is considered part of the control device 19. Amplifier 2000 microprocessor control is shown at 204. The motor output shaft 55c is coupled to and operates on the carriage 16 to move it forward and backward as described above.

The blade positioning DC motor 134 has a driver amplifier 20 associated with the main controller 19 at 134a and 134b.
5. An encoder 206 coupled to the motor 134c is coupled at 207 to the microprocessor 19a in a feedback relationship. amplifier 2
Microprocessor control of 05 is shown at 207. The motor output shaft 164c is operatively coupled to the blade assembly to radially advance and retract the blades 66 and 64 relative to the wire sheath.

A blade rotating DC motor 105 is coupled at 105a and 105b to a driver amplifier 210, the microprocessor control of amplifier 2k) being indicated at 211. Motor output shaft 1
05c is operatively coupled to a blade device such that blades 63 and 64 rotate about the wire and its axis. A current setting (manual or selectable) for the motor is shown schematically at 213 to vary the force, current supplied to the motor, and thus the torque output of the motor. For example, four settings may be provided to select the torque level of the motor to allow the rotating blade to cut wire insulation of different thicknesses.

A Tsuya clamp drive DC motor 44 is coupled to driver amplifier 215 at 44a and 44b.

Amplifier 2150 microprocessor control is shown at 216. The output shaft of the motor is operatively coupled to the outside jaws or heads 30 and 31 of the clamp to move them radially relative to the wire to clamp the wire as described above.

A wire guide drive DC motor 84 is coupled at 84a and 84b to a driver amplifier 218, the microprocessor control of which is shown at 219. Motor output shaft 84
c is operatively coupled to guide jaws 70 and 71 to move them radially relative to the wire and independently of radial movement of the blade toward or away from the wire.

In this way, the guide jaws do not rotate together with the blade, and their guiding engagement with the stationary wire is initiated completely independent of blade movement or rotation, so that the blade does not rotate with the blade. Maximum precision of wire guidance occurs near its rotating blade when cutting into the armor sheath. Therefore, extremely accurate control of the depth of cut and its changes is possible.

Referring to the timing diagram in Figure 16, it shows the timing of the five motors mentioned in Figure 15.
The N-OFF state is shown, the ON state for forward rotation of the motor is above the horizontal OFF lines, and the ON state for reverse rotation of the motor is below the horizontal lines.

Motor 44 is first activated at 1j near the beginning of the cycle to perform clamping. Next, at t2, motors 134 and 105 are activated to open (retract) the blade and begin its rotation. The motor 134 is t.

is turned off and the blade is opened. At t, the carriage motor 55 is turned on, placing the carriage in the axial IC position, and at t, the motor is turned off.

At t6, shortly after t5, wire guide motor 84 is turned on to move the wire guide radially inward and engage the wire. At t7, the blade motor 134 is operated in reverse,
The rotating blade is moved radially inward to begin cutting the insulation to the selected depth.

At t8, motors 134, 105. And all 84 are working. Motor 84 guides retraction (opening), blade rotation motor 105 operates in reverse to quickly brake the rotation of the blade, and motors 1 and 4 partially retract the blade (short distance between 1 and t). Note the pull interval, during which the motor 134 is reversed and then turned off with the blade partially retracted to pull the insulation or armor from the wire without cutting off the portion of the wire that will not be pulled. stay in position). At too, the carriage motor 55 is actuated to move the carriage axially and pull the blade axially to remove the insulation cut from the wire.

At tll, the motor 84 is actuated in reverse to pull the guide radially outward, and at t,1 the blade rotation motor 105, which had been actuated in reverse since t, is turned off. Finally, the clamp motor 44
is activated in reverse at t, and turned off at t, freeing the wire for removal.

Keyboard 19' associated with the microprocessor
allows selection of depth of cut by the blade and wire end positioning relative to the wire (determined by carriage positioning).

Figure 17 shows the core of the wire for cutting armor to different depths corresponding to different diameters Dl...Dn.
Typical blade position 'I y B2e from end 20'
s3 Figure 1 is a perspective view of the entire device embodying the present invention, Figure 1a is a diagram showing the main control device for double drive, Figure 2 is a diagram showing the operating process, and Figure 3 is an insulation diagram. A side view of the end of the wire showing the steps involved in the stripping process; FIG. 4 is a plan view of the apparatus of the present invention; FIG. 5 is a cross-sectional view of the apparatus shown in FIG. 4; Fig. 7 is an enlarged partially broken side elevational view showing the wire receiving state, clamping and cutting of the wire armor, Fig. 7 is an enlarged end view partially cut away along line 7-7 in Fig. 3, and Fig. 8 is an enlarged end view of the wire sheathing. FIG. 9 is an enlarged end view of the third cicada, partially cut away along line 9-9, and the center position of the wire indicates the condition. FIG. 11 is an enlarged end view showing the cutter or blade during cutting of insulation material; FIG. 12 is a cross-sectional view taken along line 12-12 in FIG. 3; FIG. 15 is a sectional view taken along line 13-13 in FIG. 3, showing another drive mechanism; FIG. 14 is a cross-sectional view taken along line 13-13 in FIG. Figure 15 is a block diagram showing the main controller controlling the drive motor; Figure 16 is a timing diagram; Figure 17 shows the different sheath cuts and depth of cut. FIG. 3 is an enlarged view of the twist end.

10...Frame, 16...Carriage, 19...
- Main control device, 20... Cable, 24... Clamp device, 30.31... Head, 62... Rotating shaft,
34.35... Crank arm, 40, 41... Drive rod, 44... Gear motor, 46.47... Arm, 50... Carriage premt, 55... Carriage positioning motor, 56... ...Screw, 57...Nut, 62...Tsuya support clamp device, 63.64
...Blade, 70.71...Head, 74.75...
Crank arm, 80.31... Dry Ibrod,
84...Motor, 86.87...Arm, 100.
... Rotating spindle assembly, 101... Shaft, 105... Motor, 110.111... Arm, 115... Cam, 120.121... Cam follower 134... Motor.

(4 others) Engraving of the drawings (no changes to the content) Procedural amendment (Horiki November 1989 IQ date 2゜ Title of invention Apparatus and method for stripping armor at a controllable depth from wire 3)゜Relationship with the case of the person making the amendment Patent applicant address: Eubanks e Engineering Company 4, agent address: Shin-Otemachi Building 206, 2-2-1 Otemachi, Chiyoda-ku, Tokyo

Claims (1)

Claims: 1. An apparatus for stripping armor at a controllable depth from a wire, comprising: a) a frame; b) clamping means on the frame, the wire being advanced past the clamping means; clamping means for laterally clamping the sheath of the wire at a location spaced from the end; c) a carriage on the frame movable longitudinally and linearly towards and away from the wire clamping means; d) a rotating spindle on the carriage and blade means rotatable on the spindle for cutting into the sheath of the wire while rotating; e) a clamp mounted on the carriage independently of said spindle; wire engaging means for laterally engaging the sheath of the wire at a location between the means and the blade means; f) the depth of cut of the blade means into the sheath as the spindle rotates; and g) drive means operatively coupled to said carriage to convey said carriage to a selected position along the wire, at which said blade means is then controlled. Apparatus for cutting to a depth into the armor, said carriage being retractable to longitudinally pull apart sections of the armor. 2. The device according to claim 1, wherein the means for controlling the depth of cut of the blade means comprises a pivoted arm means, a cam, and a position of the cam relative to the arm means for controlling the arm means. an actuator capable of pivoting, said blade means being carried by said arm means, said arm means, cam and actuator being carried by said carriage. 3. The apparatus of claim 2, wherein said arm means includes two pivoted arms that swing in opposite directions in response to axial movement of said cam. 4. The apparatus of claim 3, wherein the cam includes a cone extending between the arms. 5. The apparatus of claim 1, wherein the clamping means includes two clamping elements and includes a drive coupled to and operatively moving them toward and away from each other relative to each other. 6. The apparatus according to claim 1, further comprising a second drive device provided on the carriage and coupled to and actuated by the spindle to rotate the spindle, the spindle being rotatably mounted on the carriage. equipment. 7. The apparatus of claim 6, wherein said spindle has a longitudinal axis of rotation, said blade means having at least two blades carried on said spindle for movement toward and away from said axis. Contains equipment. 8. The apparatus of claim 5, wherein said elements define opposed orchid jaws movable relative to each other to progressively encircle, clamp and center the wire. device comprising two heads with parallel and intermeshed plates. 9. Apparatus as claimed in claim 8, wherein said drive means comprises two crank arms having a pivoted lost motion connection with said heads to move said heads relative to each other in response to rotation of the crank arms. apparatus comprising guide means for operatively moving said heads toward each other and guiding said heads generally linearly toward one another in response to movement of said heads by said crank arm. 10. The device according to claim 9, wherein the driving means comprises:
Apparatus comprising two drive rods carried by said frame and each coupled to a crank arm for rotating said crank arm about parallel axes clockwise and counterclockwise, respectively. 11. The apparatus of claim 10, wherein the drive means includes a drive motor having a lost motion drive coupling with at least one of the rods, the rods having a lost motion mutual coupling therebetween, and thereby A device in which rotation of one rod in either direction by a motor causes rotation of the other rod in the opposite direction. 12. The apparatus of claim 8, wherein the head includes an interengaging stop that limits relative closing of the jaw portions together. 13. The apparatus of claim 1, wherein said wire engagement guide means includes two guide portions, and a drive device operatively coupled to said portions to move said portions relatively toward and away from each other. Contains equipment. 14. The apparatus of claim 13, wherein the portion comprises:
comprising two heads having parallel interlocking plates defining opposing orchid-shaped jaw portions that move relative to each other to progressively encircle, clamp and center said wire; Device. 15. The apparatus of claim 14, wherein the drive means includes two crank arms having a pivoted free movement connection with the heads, and in response to rotation of the crank arms, orients the heads relative to each other. the apparatus including guide means for substantially linearly guiding the heads toward each other in response to crank arm movement of the heads. 16. The apparatus of claim 10, wherein the drive means includes two drive rods provided on the carriage and each coupled to the crank arm to rotate them clockwise and counterclockwise, respectively, about parallel axes. equipment, including. 17. The apparatus of claim 16, wherein the drive includes a drive motor having a lost motion drive coupling at least for the rods, the rods having a lost motion coupling therebetween; A device in which rotation of the rod in either direction by a motor causes rotation of the other rod in the opposite direction. 18. The apparatus of claim 14 including interengagable stops on the head to limit relative closing of the jaws together. 19. The apparatus of claim 13, wherein the portion of the wire engagement drive means is selectively excitable electrically actuated to produce a selected torque providing a selective force applied by the portion to the wire. contains the motor,
Device. 20. A method of stripping armor from a wire at a controllable depth, wherein the blade means is operable to cut the armor, and the wire guide means is operable to guide the wire while cutting. and the blade means has an axis of rotation, wherein: a) the wire guide means is radially directed relative to the axis to guide the wire while cutting the wire; b) radially advancing the blade means relative to the axis to position the blade means to rotationally cut the armor; c) rotating the blade means about the axis to rotationally cut the sheath, the advancement of the blade means being independent of the radial advancement of the wire guide means; d) preventing rotation of the wire guide means about the axis during rotation of the blade means, while the wire guide means is maintained close to the rotating blade; and A method consisting of 21. The method of claim 20, including the step of retracting said guide means radially away from said axis, independent of said positioning of said blade means, after completion of cutting the wire. . 22. The method of claim 21, including the step of retracting said blade means away from said axis, independent of retraction of said wire guide means, after completion of cutting the wire. 23. The method of claim 22, wherein the retraction of the blade means is performed to a certain position in the radial direction, and the blade acts to extract the armor piece from the wire without scraping off the portion of the wire that is not extracted. how to. 24. The method of claim 23 including the step of relatively moving the blade means in an axial direction to withdraw the armor piece from the wire. 25. The method of claim 20, further comprising wire clamping means axially spaced from the blade means and the guide means, the wire clamping means being moved radially relative to the wire. The above a), b), c)
, clamping the wire during step d). 26. The method according to claim 20, including the step of positioning the blade means by controlling radial advancement of the blade means in order to cut the armor with a controlled radial dimension from the axis. ,Method. 27. The method of claim 20, wherein a DC motor is operated to rotationally drive the blade means, and selectively varying the current supplied to the motor to control its torque output. including methods. 28, in a method for controllably stripping armor at a controllable depth from an axially extending wire, the method comprises: a) a frame and a first DC motor in response to driving a carriage in an axial direction on said frame; b) blade means mounted on the carriage and radially movable toward and away from the wire sheath in response to actuation of the blade means by a second DC motor; blade means, the wire extending in an axial direction; c) a third DC motor coupled to and operative to rotate the blade means about the axis to rotationally cut the armor; d) clamping means radially movable towards and away from said wire sheathing in response to actuation of a fourth DC motor; e) said clamping means in response to actuation of a fifth DC motor; guiding means proximate to the blade means and movable radially towards and away from the wire sheath; f) actuating the fourth DC motor to cause the clamping means to move; g) actuating the third DC motor to move the blade means about the axis with the means radially retracted from the sheath; h) actuating the fifth motor to position the guide means to radially position the wire while cutting the wire; and i) for cutting the wire sheath. , independently of the positioning of the guide means, actuating the second DC motor to move the rotating blade means radially towards the wire sheath; j) a first DC motor; activating a motor to cause axial movement of the carriage, thereby causing blade means to separate the cut portion of the sheath from the wire. 29. The method of claim 28, including the step of activating a third DC motor to reduce rotation of the blade before step j). 30. The method of claim 29 including the step of activating a third DC motor to generate a counter-torque that provides a brake on the rotation of the blade means during the reduction in rotation of the blade means. 31. The method of claim 28, including controlling and varying the current supplied to the third motor to enable the rotating blade means to cut through wire insulation of different thicknesses. A method comprising selecting a torque level generation for the motor. 32. A method for controllably stripping armor at a controllable depth from an axially extending wire, comprising: a) a drive device operable in a first, second, third, fourth, or fifth mode; b) a frame and a carriage axially movable on the frame in response to drive by the drive means operated in a first mode; and c) responsive to drive by the drive means operated in a second mode. a blade means on the carriage which is movable radially towards and away from the wire sheath; d) said drive means is coupled and operatively coupled to said blade means and operatively in a third mode; rotating the blade means about said axis to rotationally cut the sheath, e) in response to actuation of the drive means activated in a fourth mode, towards and away from the wire sheath; radially movable clamping means; and f) radially movable towards and away from the wire armor proximate the blade means in response to actuation of the drive means operated in a fifth mode. g) operating the drive means in a fourth mode to cause the clamping means to clamp the wire sheath; and h) operating the drive means in a third mode to cause the blade means to clamp. i) rotating the blade means about said axis while the blade is retracted from the sheath; i) operating and guiding the drive means in a fifth mode to radially position the wire while cutting the wire; j) operating the drive means in a second mode to cut the wire sheath, independently of the positioning of said guide means, positioning the rotating blade means through the wire sheath; k) operating the drive means in a first mode to cause axial movement of the carriage and causing the blade means to separate the cut portion of the armor from the wire. Method. 33. The method of claim 32, including the step of operating the drive means in a third mode to reduce rotation of the blade means prior to step k). 34. The method of claim 33, including the step of operating the drive means in a third mode during the reduction in rotation of the blade means to generate a counter-torque that causes braking of rotation of the blade means. Method. 35. The method of claim 32, further comprising controlling the electrical energization of the drive means operated in a third mode to enable the rotating blade means to cut wire insulation of different thicknesses. A method comprising the step of varying and selecting a torque applied to a blade means.