JPH03216981A - Automatic processing device for electric wire terminal - Google Patents

Abstract

PURPOSE:To automatically process electric wire terminals limitlessly and continuously with a simple action and completely automate the process by feeding terminals required for crimping on the feeder tray of a terminal automatic feeder, and inserting electric wires into a chuck slide. CONSTITUTION:The main spindle 225 of an electric wire terminal processing machine 2 is rotated, tools or members of a wire clamp and a chuck slide are moved in sequence by cams 27a-27j via a driven node 211, the end of an electric wire is clamped, the cover at the end of the electric wire is removed, the electric wire is fed to the crimping position while being clamped, it is crimped to a terminal, and the electric wire crimped with the terminal is discharged. The vibration section of an automatic terminal feeder 1 is moved to vibrate a rotary feeder 120 and a linear feeder 130, and the terminals necessary for crimping on a feeder tray arranged in the rotary feeder 120 are continuously conveyed to the tip of the linear feeder 130 through the rotary feeder 120. The terminal at the end section is continuously fed to the crimping position of the electric wire terminal processing machine 2. The process can be completely automated.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention clamps the end of the wire by inserting the wire into a clamp jaw, removes the covering from the end of the wire by twisting, and then clamps the wire. This invention relates to an automatic wire end processing device that can automatically feed the wire to a crimping position, crimp it with a terminal, and discharge the wire with the terminal crimped. [Prior Art] The applicant first clamps the end of the wire by inserting the wire into a clamp show, removes the covering from the end of the wire while twisting, and then feeds the wire while still being clamped to a crimping position. We have proposed an automatic wire end processing device that can automatically crimp the wire with the terminal and discharge the wire with the terminal crimped (Patent Application No. 139920/1982).
issue). [Problems to be Solved by the Invention] However, the conventional electric wire terminal automatic processing device supplies terminals to be crimped onto the ends of electric wires through a disc-shaped magazine. Therefore, during crimping work, if a certain number of terminals loaded in the attached magazine have been used up, the magazine must be replaced, making it difficult to achieve complete automation. The present invention was made to solve this problem, and the purpose is to provide an automatic wire terminal processing device that can be fully automated. [Means for Solving the Problems] The present invention provides an automatic terminal feeder having a rotary feeder and a linear feeder equipped with a vibrating part; Means for solving the above-mentioned problems with a configuration comprising a wire end processing machine having moving wire clamps, chuck slides, strip blades, twist drives, wire guides, terminal crimping, terminal pushers, and eject tools or members. did. [Function] Rotates the main shaft of the wire end processing machine and uses the cam to predetermine each tool or member of the wire clamp, chuck slide, strip blade, twist drive, wire guide, terminal crimping, terminal pusher, and ejector via the driven joint. Clamp the end of the wire, twist and remove the insulation from the end of the wire, feed the wire to the crimping position while clamping it, crimp it with the terminal, and discharge the wire with the terminal crimped. In addition, the terminals required for crimping are made by moving the vibrating part of the automatic end terminal feeder to vibrate the attached rotary feeder and linear feeder, so that the terminals on the feeder tray placed inside the rotary feeder pass through the rotary feeder. Continuously transport it to the tip of the linear feeder, and continuously feed the terminal at the end to the crimping position of the wire end processing machine. [Example] Next, an example of the present invention will be described based on the drawings. FIG. 1 shows an embodiment of the present invention, in which an automatic terminal supplying machine 1 and a wire end processing machine 2 are arranged on the same base 3.
It consists of The automatic terminal feeder 1 is provided with a rotary feeder 120 via a vibrating part (not shown) on the base 3, and
In contrast, a linear feeder 130 is provided via another vibrating section (not shown). The vibrating part receives power from the power source via a sequence device (not shown). In addition, the rotary feeder 120 includes a driving part (not shown),
It is equipped with a magazine tray 120a and a delivery L fl 12Db that can commonly send out terminals T of various types, shapes, and sizes. The delivery section +20b is located in an arc shape eccentric to the magazine plate 120a, and is connected to the terminal front/back side sorting device 121. The terminal front and back sorting device 121 as a sorter of the rotary feeder has an arc-shaped outer rail +2
1a and an arcuate inner rail 12lb, the outer rail +21a and the inner rail 121b are located on concentric arcs with different radii and overlap in the circumferential direction,
Other parts are formed without overlapping. That is, in the range of the rear end of the outer rail 121a when viewed in the transport direction of the root terminal T, in the range of the front end of the inner rail 121, with an interval corresponding to the thickness of the tongue portion of the terminal T when viewed in the radial direction, and in a circle. They overlap when viewed in the circumferential direction, thereby forming a groove 200 for guiding the terminal T. This device is useful for sorting the front and back sides of terminals T and arranging them. A return reservoir +20C is formed next to the terminal front/back sorting device +2+ and is connected to the feeder pan 120a, as shown in FIG. A vent 120d is partially formed at the bottom of the inner rail 12lb. Furthermore, a linear feeder +30 is connected following the mouth feeder 120 and the terminal front/back sorting device 121. This straight feeder! 30 is also supported on a vibrating part (not shown) on the base 3. In particular, the rear end portion 130a of the linear feeder +30 is twisted at an angle of 90 degrees, and the terminal T is discharged with it laid down in the horizontal direction. On the other hand, in the wire end processing machine 2, a reduction motor 22 with a one-turn clutch is mounted on a base 3.
ACIOOV is used as the power source. The motor shaft 22a has a pinion 23, and a gear 24 that meshes with the pinion 23 is coaxially fixed to the main shaft 25. The main shaft 25 is connected to the third a by a bearing unit 26 fixed on the base 3.
It is rotatably supported in the direction of arrow A in the figure. Main shaft 25
There are grooved cams 27b and 27i and external cam 27.
a, 27c, 27d, 27e, 27f, 27
g, 27h, 27j, and 27k are fixed so as not to rotate. According to FIG. 1 and FIGS. 3a to 3j, the following configuration is clear. According to FIG. 3a, the wire clamp is rotatably supported on a shaft fixed to a bracket (not shown) on the main shaft 25, and a driven joint 211 is biased by a spring 213, and the other end of the second driven joint A bin 214 is provided. The wire clamp has a lever 217 that is pivoted on a chuck slide 216 that is movable in the direction of arrow B in FIG.
The fork-shaped portion 217a is engaged with the forked portion 217a. chuck slide 216
can also be guided by the bracket 21a on the base. In addition to using the spring 213 for the contact between the cam 27a and the driven link 211, it is also possible to use two cams in the form of a positive arm to completely constrain the movement of the driven link 211 of the wire clamp. A binion 218 integrated with the lever 2l7 is rotatably supported by the chuck slide 216, and the chuck slide 218 is similarly supported by the binion 218.
Another pinion 219 that is pivotally supported is engaged. Binion 2
18 and 219 respectively have clamp jaws 220,
22+ is fixed, and both binions 218, 219
The rotation of the clamp jaws 220 and 22+ opens and closes them. The upper clamp jaw 220 is formed with a U-shaped guide groove 220a that protrudes downward in correspondence with the groove of the lower clamp jaw 3 22, and the guide groove 220a is not shown in detail when the clamp jaws 220 and 221 are closed. The electric wire 9 is firmly attached to the shallow grooves formed along both edges of the guide groove 220a of the lower clamp jaw 221.
It is designed to capture and prevent protrusion.
Further, the guide groove 22 is inserted from the outside of the upper clamp jaw 220.
An adjusting screw 220b is provided inside 0a, which is formed by connecting an indenter at the tip that projects in the radial direction via a compression spring, and when the indenter presses the electric wire 9, the diameter is adjusted by the clamp jaws 220, 221 of a fixed size. It is possible to provide guidance suitable for wires with different diameters (for example, 0.75 to 2.0 mm) (Figure 3a). The reason why the edge of the guide groove 220a can be made to protrude from the upper clamp jaw 220 to ensure the guidance of the electric wire 9 is that the terminal and the electric wire can be ejected laterally from the clamp jaws 220 and 221 using an ejector mechanism, which will be described later. By having such a configuration. chuck slide 2
16 on the shaft 215 is carried out via a slide bearing 216a mounted on the shaft support portion of the chuck slide 216. Thereby, the vertical reciprocating movement of the chuck slide 216 can be performed smoothly and durablely.
Moreover, the strokes are executed with reliable stroke accuracy and timing. According to FIG. 3b, the bottle 222 fixed to the lower surface of the chuck slide 216 engages with the fork-shaped portion 223a at one end of the lever 223, which is pivotally supported by a bracket (not shown) on the base 3, and the other end of the lever 223 is engaged. The end is connected to the grooved cam 2 via the roller 224.
It is attached to the groove of 7b. According to FIG. 3c, strip blades 225, 226 are shown, rollers 227, 228 are engaged in transverse grooves 225a, 226a of the strip blades 225, 226, and rollers 227, 22
8 is rotatably fixed to the driven joints 229, 230, with the roller 227a being eccentrically adjustable fixed to the driven joint 229, whereby the strip plate 225
The vertical position of can be finely adjusted with respect to the reference position according to the thickness of the electric wire, and the roller 231 at the other end of the driven joint,
132 is in contact with cams 7Cl and 7C2. These cams 7CI and 7C2 together form one cam. The driven joints 229 and 230 are axially supported by brackets (not shown) on the base 31. Both driven nodes 229, 2
30 is always biased by a spring 233 so that the roller is pressed against the cam surface. strip blade 2
25 and 226 move in the direction of arrows CI and C2 or in the opposite direction. A separator 29 is placed immediately before the strip blades 225 and 226 when viewed from the direction in which the electric wire 9 is inserted.
1 is fixed to a bracket on the base 3,
This separator 291 is fixedly provided on a bracket on the base 3, and this separator 291 is designed so that if the terminal T and the electric wire 9 move slightly after the terminal is crimped, the separator 291 will be caught on the strip blades 225 and 226. It is designed to prevent accidents. The twist drive is shown in Figure 3d, with the knurled surface 235
Jaws 235, 236 equipped with lateral grooves 225b, 236a of the strip blades 225, 226
There is a sliding attendant at 226b. Upper jaw 235
The lower jaw 236 is pinned to a lever 239 via links 237, 238, and the lever 239 is pinned to a bracket on the base 3. The lever 239 has rollers 240, 24+ at one end, and 240, 24+
are in contact with each cam 7dl, 7d2. This allows the jaws 235, 236 to move in the direction of the arrows dx, +J+ or in the opposite direction. The twist is the horizontal groove 225b of the strip blades 225, 226,
226b so that the knurled surfaces 235a, 23 of the jaws 235, 236 are movably guided laterally relative to the strip blades 225, 226 when the strip blades 225, 226 are closed.
6a comes into contact with the covering of the electric wire 9 and performs a twisting motion,
The strip blades 225, 226 are configured to perform a so-called square motion by moving back from the coating while moving in the release direction. Electric! The twist of the covered portion cut by the strip blades 225 and 226 of No. 9 is useful for preventing unraveling immediately after the stop and maintaining straightness. According to FIG. 3e, the driven joint 245 pivotally supported by a bracket on the base 3 is in contact with the cam 27e via a roller 246. The other end of the driven joint 245 has a fork-shaped groove 245.
a, and the groove 245a has a bottle 24 on another lever 248.
7 is engaged, the lever 248 is pivotally supported by a bracket on the base 3, and the other end 248b of the lever 248 forms a wire stopper. The role of this stopper is clamp jaw 2.
When inserting the electric wire 9 into the wires 20 and 221, the length of the electric wire 9 to be inserted is regulated and the length of the strip at the terminal is made accurate. This lever 248, which acts as a butt for the tip of the wire 9 when the wire 9 is inserted into the clamp jaws 220, 22+, has a starting position IF (O point K of the cam 27e).
), a touch sensor 249 is attached at a position corresponding to the vertical axis of the electric wire 9.
49 connects a lead wire to a control device (not shown).
The touch sensor 49 detects the end of the electric wire 9 in the clamp jaws 220, 221, and inputs an operating signal to the deceleration motor 22 with a one-turn clutch in order to start one rotation of the main shaft 25. In addition to the touch sensor 249, the repeller 248 can detect the remaining terminal T at the crimping position and prevent (interlock) the activation of the main shaft 25. As a result, if the terminal T remains at the crimping point, it will be detected even if the terminal T is not in the position corresponding to the axis of the electric wire 9, and the rotation of the main shaft 25 will not be started, thereby achieving safety at the crimping point. According to FIG. 3F, a lever 255 that guides and presses the covering of the electric wire 9 is pivotally supported by the bracket 3' on the base 3, and a roller 256 is attached to one end of the lever 255, and a wire guide is attached to the other end of the lever 255. It is equipped with 257. When the lever 255 swings, the wire guide 257 is moved in the direction of arrow F. That is, the wire guide 257 is placed on the base 3.
presses and releases the wire 9. wire guide 2
57 is provided with a dish-shaped portion 257a at a position corresponding to the vertical axis of the electric wire 9 in order to enable accurate alignment guidance of the core wire when the core wire abuts after the sheathing of the electric wire 9 is removed. This dish-shaped portion 257a is necessary so that the stranded wire protruding rearward from the wire guide 257 can be centered and entered into the barrel of the terminal T. According to Figure 3g, the terminal crimping mechanism is shown. Lever 27 with roller 272! is fixed to a lever-shaped tool 273 with a roller 274, and the crimping tool 273 is attached to the base 3.
It is fixed to the bracket 3g (not shown) above. The cam 7gz is for lifting the crimping tool 273, and the cam 7g+ is for pushing down the crimping tool 273, that is, for crimping the terminal T on the die Ig on the base 3. According to FIG. 3h, a terminal busher cam 27h formed as a grooved cam is recognized, and a roller 250 is engaged with the terminal busher cam 27h. A lever 251 is pivoted to the base 3 near the roller, and the other end of the lever 251 is attached to a groove 252 on the lower surface of the terminal busher 252.
I am very concerned with a. For example, the main shaft 25 disposed at the distal end discharging portion position of the linear feeder 130 of the automatic terminal supply device l is used in the same manner as for driving other tools and parts of this embodiment.
The terminal busher 252, which is arranged along the groove-shaped terminal supply part +70 which is arranged continuously with the stopper 160 of the terminal T that moves by a cam mechanism (not shown) using the lever 251 makes it reciprocate in the direction of the arrow H. According to FIG. 31, a stop signal cam 27i is shown. The stop signal cam 27i controls the rotation of the main shaft 25 via a control device (not shown), that is, the operation of the cam 27i controls the motor 22 with a one-turn clutch so that it always makes exactly one rotation and then stops. According to Figure 3j, an ejector 280a is pivotally supported on a bracket on the base 3, and the ejector 280a is rotated counterclockwise by a spring 281a in the direction of arrow J in Figure 3j until it comes into contact with a stopper similarly attached to the bracket. Forced in the direction. On the other hand, the ejector lever 282
is the groove 282 of the lever 282 on the bracket 283 on the base 3.
The ejector 280a is supported movably in the direction of arrow J by a bottle 284 passing through b, and the projection 282a of the lever 282 pushes the lower end of the ejector 280a, so that the ejector 280a can be pivoted clockwise in the direction of arrow J. There is. Similarly, the ejector rod 285 is similarly pivoted to a bracket on the base 3 when the lever 282 moves in the direction of the arrow J toward the main shaft 25, and is spring-biased by the spring 28lb until it abuts against the stopper. Then, another ejector 280b is rotated clockwise in the direction of arrow J against the spring force. By providing an ejector mechanism and configuring the terminal 210 and the electric wire 9 to be ejected in a direction transverse to the axis thereof, the clamp jaw 220 is used for ejecting the terminal and the electric wire.
Before inserting electric wire 9 into 22+, clamp jaw 220,
There is no need to close the main shaft 22+ and once stop the rotation of the main shaft 25, thereby each process is performed fully automatically, and the edges of the guide grooves 220a in the clamp jaws 220, 221 are made to protrude downward from the upper clamp jaw 220. configurable. Also. - Clamp jaws 220, 22 securely to clamp terminal T and wire 9 every cycle.
It can be eliminated from 1. Next, we will explain how to use this example. To use this embodiment, first, feeder plate +
With a large number of terminals T of predetermined specifications loaded into the terminal 20a, power is turned on to the automatic terminal supply machine 1 and the wire end processing machine 2. When the power is turned on, the automatic terminal feeder 1 starts the rotary feeder 120 and the linear feeder 30 by operating the sequence device. The terminals T on the feeder plate 120a are sent out through the delivery section +20b and reach the terminal front/back side sorting device 12+. Here groove 20
After passing through 0, if the tongue portion is located outward and the barrel portion is located inward when viewed in the radial direction, the pallet portion is suspended and conveyed on the inner rail 12lb, and fed into the linear feeder 130. If the direction of the barrel part and tongue part is opposite to the above, the terminal T will come off the inner rail 12lb and fall down to the return pool 1.
20c, and is returned onto the feeder plate 120a via a passage 120d. In the linear feeder 130, the terminals T have their barrels facing upward and their tongues facing downward, and the adjacent terminals T and T touch each other at the outer periphery of the old part, so that the pitch is regulated mutually, and the end of the linear feeder +30 is The terminals are then fed one by one to the terminal supply section 170 of the wire end processing machine 2 via the stopper 160. Further, when the terminal T is detected by the terminal overflow detection device +31 on the linear feeder 130, the operation of the rotary feeder 120 is stopped via the sequence device. On the other hand, the wire end processing machine 2 is in a stopped state, and the tip of the wire 9 is inserted into the chuck slide 216. At this time, when the wire 9 is inserted until its tip hits the stopper 248, the touch sensor 249 attached to the stopper 248 is actuated to start the wire end processor 2 and rotate the main shaft 25.
Then, the chuck slide 216 equipped with the clamp jaws 225 and 226 moves forward after once retreating. During retraction, the sheathing of the wire 9 is removed at the location where the stripping and twisting was performed in conjunction with the movement and twisting movement of the stripping plate 125. Next, the chuck slide 216 moves forward in a feeding phase to the crimping point of the strands of the electric wire 9. The strip plate 125 closes at the beginning of the rotational phase of the spindle, thereby cutting the coating and removing it during retraction movement of the chuck slide as described above. Set position of strip blade 225 (cam 27c
The zero point If) is adjusted by rotating the eccentric bin 227a # by 180 degrees and setting it. The stroke of the chuck slide 216 is set appropriately according to the thickness of the electric wire 9. Twist is done by a mechanism similar to the strip (Fig. 3d)
By moving the knurled upper part 235 and the lower jaw 236 in opposite directions, the coating and strands are twisted to facilitate removal of the coating and to ensure that the core wire does not come apart and maintains its straightness. (Fig. 3d), wire guide 257t: alignment is advantageously achieved. That is,
The stranded wires that abut against the trumpet-shaped portion 257a of the wire guide 257 are aligned. The twisting is performed in tandem with the actuation of the strip, so that the twisting motion performs a square motion. The wire stopper 248b is driven from the beginning of the rotational phase of the main shaft 25 over 273 rotations of the main shaft 25. The electric wire 9 to which the terminal T is crimped is ejected by the movement of the wire stopper 248b in the opposite direction. The terminal T is crimped in synchronization with the operation timing of the wire guide 257. The terminal busher protrudes the terminal T in the terminal supply section 170 toward the clamp jaw 220 and sends it to the crimping location. The signal stop cam acts to stop the main shaft 25 by making exactly one rotation. The stop signal cam acts to rotate the main shaft 25 exactly one rotation and stop it every rotation. The ejectors 280a and 280b are connected to the wire stopper 248b.
With this action, the electric wire 9 with the terminal T crimped thereon is automatically discharged from the clamp jaws 220, 221. As described above, by simply supplying the terminal T and inserting the electric wire 9, a series of processes from terminal crimping to ejecting can be performed fully automatically. [Effects of the Invention] According to the present invention having the above configuration, terminals required for crimping can be supplied to the feeder tray of an automatic terminal feeder, and electric wires can be crimped endlessly by a simple operation of simply inserting them into the chuck slide. In addition, it is possible to automatically process wire terminals continuously, making it possible to achieve complete automation.

[Brief explanation of drawings]

Fig. 1 is a plan view showing an embodiment of the present invention, Fig. 2 is a partial side view mainly showing the automatic terminal feeder portion, Fig. 3a,
Figure 3b, Figure 3C, Figure 3d, Figure 3e, Figure 3f,
Figures 3g, 3h, 31 and 3j show wire clamps, chuck slides, strip plates,
FIG. 2 is an explanatory diagram partially showing mechanisms for each process of twist cut drive, stopper drive, wire guide, terminal crimping, terminal pusher, and eject, and the mechanism for action by a stop signal cam. DESCRIPTION OF SYMBOLS 1... Automatic terminal supply machine, 2... Wire end processing machine, 120... Rotary feeder, +30... Linear feeder, 225... Main shaft, 216... Chuck slide, 27a, 27b, 27c, 27d, 2
7e, 27f, 27g, 27h, 27i, 2
7j...come.

Claims (1)

[Claims] An automatic terminal feeder having a rotary feeder and a linear feeder equipped with a vibrating part; A wire clamp and a chuck slide that are moved via a driven joint by a stop signal cam attached to one main shaft. , strip plate, twist drive, wire guide,
An automatic wire end processing device comprising: a wire end processing machine having tools or members for terminal crimping, a terminal pusher, and an ejector.