JP3039304B2 - Terminal crimping equipment for shielded wires - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal crimping device for a shielded wire, and more particularly, to a grounding lead wire connected to a drain wire of the shielded wire exposed from an end of the stripped shielded wire. Wire crimping device for crimping terminal fittings for use.

[0002]

2. Description of the Related Art In general, a plurality of core wires and a drain wire for ground are covered with a protective coating, and the drain wire and the lead wire are electrically connected to each other by using a terminal fitting formed into a predetermined shape. There is known a technique of holding the state of the state (Japanese Patent Application Laid-Open Nos. 4-325340 and 4-26947).
0, JP-B-58-42684).

Among these, Japanese Patent Publication No. 58-42684 discloses a substantially C-shaped terminal fitting whose outer wall is covered with an insulating sheet. As a technique for caulking such a terminal fitting, U.S. Pat. No. 4,055,980 discloses a tool for crimping a terminal fitting of a shielded wire. The tool has a pair of die sets that are displaced by opening and closing a pair of handles connected in a pliers shape via a spindle around the spindle. Then, when caulking, place the terminal fitting between the die sets, join the drain wire and the lead wire, and then operate the handle with human power to insert the terminal fitting between the die sets. I was caulking.

However, in the above-mentioned tool, since the caulking process has to be performed manually, there is a problem that workability is poor and quality varies. Therefore, the applicant of the above-mentioned U.S. patent sells a device for automatically caulking the terminal fitting. In this apparatus, a pair of die sets for caulking the terminal fittings, a terminal fitting supply unit for supplying the terminal fittings to the die set, a lead wire clamp for clamping a lead wire caulked to the terminal fittings,
And an operation switch for driving a terminal fitting supply unit, a die set, and the like in a predetermined sequence.

In order to continuously supply terminal fittings by the terminal fitting supply section, the above-mentioned conventional apparatus winds and carries a continuous body having a continuous insulating sheet covering the outside of the terminal fittings in a roll shape. The insulating sheet was punched out of the continuous body by a punch, and the punched out terminal was guided into a porter of a terminal fitting supply section, and the terminal fitting supply section carried the terminal fitting into the die set. The terminal fitting to be conveyed was guided in a free state and was conveyed to the die set. In addition, the punched waste of the punched insulating sheet is
Vacuum was sucking.

When operating the above device, a shield wire and a lead wire from which the drain wire has been peeled are prepared in advance. Then, first, the lead wire is applied to a predetermined clamp position, and the stripped core wire portion of the lead wire is joined to the terminal fitting conveyed into the die set, and the operation switch is turned on once. Thereby, the lead wire is clamped by the lead wire clamp. Next, the shield wire is applied to the terminal fitting in the die set, and the drain wire of the shield wire is folded and joined to the lead wire. When the operation switch is turned on again in this state, the die set crimps the terminal fittings, and a short circuit between the lead wire and the drain wire is achieved.
Each component was sequentially driven by the control device at a preset timing.

[0007]

In the terminal crimping apparatus as described above, what is required in recent years is to ensure the safety of work. However, in the case of the caulking operation by the above-described device, since the operation of each component is only driven sequentially at a preset timing, if the operation of the operator is delayed for some reason, the lead wire clamp etc. There were problems such as collision with the hands of workers. In particular, when the shield wire is taken out of the die set after the completion of the crimping by the die set, if an operator tries to take out the shield wire with a delay of a waiting time set in the apparatus, a terminal fitting for supplying a terminal fitting is provided. There was a problem that the supply unit approached the die set and collided with the operator's hand.

The present invention has been made in view of the above-described problems, and has as its object to provide a terminal crimping apparatus for a shielded wire capable of performing a crimping operation in accordance with an operation of an operator.

[0009]

According to a first aspect of the present invention, a grounding lead is connected to a drain line of a shielded wire exposed from an end of the stripped shielded wire. In a shielded wire terminal crimping device for caulking a terminal fitting for connecting a wire, the crimping device includes a pair of die sets, and a pressurizing unit for caulking the terminal fitting with the die set, and the presence or absence of a work in the die set. Terminal means including a detecting means for detecting, a lead wire clamp for clamping the lead wire on the side of the die set, and a porter for transferring the terminal fitting to the die set by being displaced integrally with the lead wire clamp. With the feeder and the lead wire clamp, the clamp position where it faces the side of the die set, and the porter facing the side of the die set To a displacement member which is displaced to the retracted position retracted to the operator side, and automatically control the displacement member after crimping of the terminal fitting by pressure unit, with to displace the lead clamp to the retracted position from the clamping position,
A control unit for controlling terminal supply by the terminal fitting supply unit based on a predetermined sequence, wherein the control unit is configured to allow the displacement member to be connected to the lead wire clamp while the detection unit detects the work. The terminal crimping device for a shielded wire is characterized in that it is driven to a retracted position and waits for terminal supply by a terminal fitting supply unit.

Further, according to a second aspect of the present invention, there is provided a shielded wire terminal for caulking a terminal fitting for connecting a grounding lead wire to a drain wire of the shielded wire exposed from an end of the stripped shielded wire. A pressure unit including a pair of die sets, a pressing unit for caulking the terminal fitting with the die set, a detecting unit for detecting the presence or absence of a work in the die set, and a terminal for supplying a terminal fitting to the die set A metal fitting supply portion, a positioning member for positioning the lead wire to be clamped to the supplied terminal metal with respect to the terminal metal from the side of the die set, and a positioning member for positioning the conductive member on the side of the die set. A displacing member for displacing a positioning position opposing the die set and a release position for releasing a lateral side of the die set as a working space for arranging the shield wire. Automatically controlling the displacement member after the terminal fitting is pressed by the pressing unit, displacing the positioning member from the release position to the positioning position, and supplying the terminal by the terminal fitting supply unit based on a predetermined sequence. And a control device for controlling the control device, while the detecting means is detecting the workpiece, the displacement member drives the positioning member to the clamp position,
A terminal crimping apparatus for a shielded wire, which waits for a terminal to be supplied by a terminal fitting supply unit.

[0011]

According to the structure of the first aspect, when the terminal fitting is pressed by the pressing unit, the control device automatically controls the displacement member to displace the lead wire clamp from the clamp position to the retracted position, The porter attempts to transport the terminal fitting into the die set. At this time, while the work, that is, the terminal fitting or the shield wire, or the assembly of the both remains in the die set of the pressurizing unit, the detecting means detects this, so that the control device operates the displacement member. The displacement of the lead wire clamp is made to wait.

In the above configuration, when the terminal fitting is pressed by the pressing unit, the control device automatically controls the displacement member to displace the positioning member from the release position to the positioning position. And At this time, while the work, that is, the terminal fitting or the shield wire, or the assembly of the both remains in the die set of the pressurizing unit, the detecting means detects this, so that the control device operates the displacement member. This causes the positioning member to wait for displacement.

[0013]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a perspective view showing a main part of a terminal crimping apparatus for a shielded wire according to an embodiment of the present invention, and FIG. 2 is a perspective view showing an appearance of the terminal crimping apparatus for a shielded wire of FIG. 3 is a right side view of FIG.

First, referring to FIG. 2 and FIG. 3, in the shielded terminal crimping apparatus of the present embodiment, a main body device 2 is placed on a work table 1 and an operator operates the work table 1. This is for operating the main unit 2 in a state where the user sits down to perform the crimping work of the shield wire. In the following description, the side on which the worker sits is temporarily assumed to be the front. An operation panel 3 for operating the main unit 2 is provided on the work table 1.
And an emergency button 4 for stopping the main unit 2 in an emergency. A pressurized air supply device 5 for driving the main unit 2 is provided on the inner frame of the work table 1.
Is attached. Further, a control device 6 containing a relay circuit and the like is attached to a side frame of the work table 1. Below the work table 1, a foot switch 7 for operating the main unit 2 is arranged. In addition,
In FIG. 2, 9 is a manual switch, 101 is a light, and 102 is a safety limit switch.

As will be described in detail later, the main body device 2 is mounted on a base 10 and mounted on the base 10, and a terminal fitting T
Pressing unit 20 including a pair of die sets 21 and 22 for crimping, and die set 2 of pressing unit 20
A terminal supply unit 30 for supplying a terminal fitting T to the first and second terminals 22.
And a lead wire clamp 40 for clamping a lead wire to be crimped to the supplied terminal fitting T, and a lead wire positioning unit 50 for positioning the lead wire to be clamped.

In this embodiment, the main unit 2 is attached to the work table 1 via an angle adjusting unit 8. As shown in FIG. 3, the top plate 1A of the work table 1 is formed with a concave portion 10B for accommodating the main unit 2, and the main unit 2 is configured to be relatively displaceable with respect to the top plate 1A. ing. In this state, the recess 10
B includes a mounting plate 8 for receiving the lower surface of the base 10 of the main body device 2.
1 is provided. A pair of support shafts 82 are attached to both front sides of the main body device 2 on both side surfaces of the mounting plate 81, and the support shafts 82 are rotatably supported by the work table 1. Further, a pair of stopper plates 83 is fixed to the rear end of the main body device 2 on both side surfaces of the mounting plate 81. Each stopper plate 83 has a long hole 84 extending along the side surface of the mounting plate 81. On the other hand, a mounting plate 85 facing the stopper plate 83 in the left-right direction is fixed to the work table 1, and the mounting plate 81 rotates around the support shaft 82 on the mounting plate 85. A number of screw holes 86 formed intermittently along the locus of the long hole 84 at the time are screwed. Therefore, by rotating the mounting plate 81 around the support shaft 82 and screwing a bolt 87 that passes through the long hole 84 at a desired screw hole 86,
The inclination angle of the main unit 2 can be adjusted according to the operator.

However, simply inclining the main body device 2 causes problems such as displacement of terminal fittings to be crimped, as in the conventional device. Therefore, in the present embodiment, the terminal device to be transferred to the die sets 21 and 22 on the base 10 whose angle has been changed by employing the main body device 2 having the terminal supply unit 30 having the following structure. This constitutes a means for restricting the displacement of T.

Next, the main unit 2 of this embodiment will be described in detail. FIG. 4 is a front view showing a main part of the shielded terminal crimping device of FIG. 1, FIG. 5 is a right side view showing a main part of the shielded terminal crimping device of FIG. 1, and FIG. 2 is a left side view showing a main part of the terminal crimping apparatus for a shielded wire of FIG. Referring to FIG. 1 and FIG. 4 to FIG.
The base 10 is integrally formed with a press table 11 erected thereon and a columnar body 12 erected on the press table 11. The upper surface 11A of the press table 11 and the front surface 12A of the columnar body 12 define a shoulder 13 continuously with each other,
The die set 2 of the pressure unit 20 is attached to the shoulder 13.
1, 22 are arranged.

A cylinder 23 is fixed to the upper part of the columnar body 12. The rod 24 of the cylinder 23 is vertically displaced toward the upper surface 11A of the press table 11 that defines the shoulder portion 13, and a substantially rectangular slider block 25 is attached to the rod 24. On the lower surface of the slider block 25, the die sets 21, 22
Is fixed. On the other hand,
A pressure receiving portion 22, which constitutes the other of the die sets 21, 22, is attached via a receiving member 14 to an upper surface 11 </ b> A of the press table 11 forming the shoulder portion 13. Then, by bringing the pressurizing portion 21 closer to the pressure receiving portion 22, the terminal fitting T is caulked between the two. The pressurizing section 21 and the pressure receiving section 22 are detachably fixed by screws 26, respectively, and can be replaced according to terminal fittings to be caulked.

At the front of the press table 11, there is formed a shoulder 15 whose upper part protrudes, and an adjusting screw 16 is mounted on the lower surface of the shoulder 15. Then, by adjusting the height of the receiving member 14 from the press table 11 with the adjusting screw 16, the facing distance between the die sets 21 and 22 can be adjusted. Pressurizing unit 2
In order to detect the crimping height of the terminal fitting T by the 0 die sets 21 and 22,
The fixed piece 12B protrudes, and the slider block 25 has an opposing piece 25 facing the fixed piece 12B.
B is integrally protruded. A proximity sensor 12C is attached to the fixed piece 12B, and an opposed pin 25C opposed to the proximity sensor 12C is attached to the opposed piece 25B. Then, the proximity sensor 12C sends a detection signal to a measurement device 12D (see FIG. 2) that measures the interval between the proximity pin 25C and the measurement device 1C.
The 2D inputs a signal based on the measured value to a microprocessor (not shown) in the control device 6. Thus, it is possible to precisely control and change the crimping height.

Next, the terminal supply section 30 of this embodiment will be described in detail. First, the terminal fitting T supplied by the terminal supply unit 30 of the present embodiment will be described with reference to FIG. FIGS. 7A and 7B are diagrams of a terminal fitting used in the present embodiment, wherein FIG. 7A is a perspective view before swaging, FIG. 7B is a front view before swaging the terminal fitting with a shield wire, and FIG. C)
FIG. 3 is a front view after swaging.

Referring to FIG. 7 (A), a terminal T before being subjected to caulking is formed of a main body T1 which is formed in a substantially C-shape having a semicylindrical shape, and an arc of the main body T1. A cut-and-raised piece T2 formed by radially cutting and raising an intermediate portion in the center line direction is integrally provided. Cut and raised piece T
The base 2 has a starting point at the center in the arc direction of the main body T1. The tip of the cut-and-raised piece T2 is attached to the main body T
It is curved with a curvature larger than 1 and enters the inside of the main body T1. Then, as shown in FIG.
The core wire S1 of the shielded wire S that has been peeled in advance is sandwiched between the inner peripheral surface of the tip portion of the cut-and-raised piece T2 and one end T3 of the main body portion T1 facing the cut-and-raised piece T2.
2 between the outer peripheral surface of the distal end portion and the other end portion T4 of the main body portion T1 opposed thereto while the drain wire S2 of the folded shield wire S and the conductive wire R1 of the lead wire R are joined. Then, by caulking with the die sets 21 and 22 (see FIG. 1), as shown in FIG. It can be held.

Next, returning to FIG. 7A, referring to FIG.
A resin sheet T5 for insulation is adhered to the outer peripheral surface of. At the time of manufacturing, the resin sheet T5 includes a base T6 that covers the outer peripheral side of the main body T1 of the terminal fitting T, and bases T6 and T6.
A tab T7 for connecting between them is provided integrally. As a result, the main body T1 of the terminal fitting T is bonded to the base T6 of the resin sheet T5 to form a continuous body T10 that is continuous at a predetermined interval.
0 is wound around the reel 31 as shown in FIG.

Next, with reference to FIGS. 1, 5 and 6, in order to carry the reel 31, the cylinder head 23A of the above-described pressurizing unit 20 is provided as an angled carrier. The end of the arm 32 is a bolt 32A
(See FIG. 5). The free end of the arm 32 extends obliquely upward toward the rear, and holds the reel 31 detachably and rotatably via a rod 33 thereof. In the present embodiment, the reel 31 is supported so that the rotation center thereof is along the left-right direction, and the reel 31 is supported on the rear side of the main body device 2 so that the main body device 2 is inclined. In addition, the reel 31 is designed so as not to obstruct the worker.

As shown in FIGS. 5 and 6, a continuous body T10 of terminal fittings T pulled out from the reel 31 is guided by a guide roller 34 which is supported by the column 12 via the mounting plate 17. Are guided in a terminal holder 35 fixed to the right side of the columnar body 12. The terminal holder 35 is formed in a U-shaped channel shape in cross section, and guides the terminal fitting T so as to be displaceable only downward.

As shown in FIG. 8, which is an enlarged view of a main part of FIG. 6, a pair of vertically extending insertion holes 35A and 35B are formed in the back surface of the terminal holder 35. Further, a transport unit 36 that sequentially transports the continuous body T10 to the downstream side by driving the terminal fitting T through the insertion holes 35A and 35B is attached to the mounting plate 17.

The transport unit 36 includes a frame 36
A and the cylinder 36 attached to the frame body 36A
B, attached to the rod 36C of the cylinder 36B,
While being displaced in the transport direction of the continuum T10 (vertically downward in this embodiment), the terminal fitting T of the continuum T10 is passed through one of the insertion holes 35A formed on the downstream side of the continuum T10. And a stopper claw 36E that is axially supported by the frame body 36A at a fixed position and engages with the terminal fitting of the continuous body T10 through an upstream insertion hole 35B. I have. The feed claw 36
D and a stopper claw 36E are provided on a support shaft 36 extending left and right.
By being pivotally supported via F and 36G, the terminal holder 35 is configured to be displaceable between an engaging position (a position indicated by a solid line in FIG. 8) entering the terminal holder 35 and a retracting position retracting from the terminal holder 35. And are elastically pressed to the engagement positions by the compression coil springs SP1 and SP2, respectively. In this state, the cylinder 36
B extends the rod 36C downward, so that the feed pawl 36D can feed one terminal fitting T of the continuous body T10 by one piece to the downstream side, and the stopper pawl 3
6E, the terminal fitting T engaged from the upstream side is pushed downstream while pushing the stopper claw 36E, and the terminal fitting T subsequent to this terminal fitting T is engaged with the stopper claw 36E, so that the terminal fitting T is continuous. The bodies T10 can be conveyed one by one without backflow.

At the downstream end of the terminal holder 35, a porter 37, which will be described later, waits for the terminal fitting T, and the terminal fitting T is transported between the die sets 21 and 22 of the pressure unit 20 by the porter 37. Will be done. By the way, since the feed claw 36D needs to be displaced from the upstream side to the downstream side to send the terminal fitting T, the auxiliary transport claw 36H is provided between the porter 37 and the feed claw.
Is attached so that the terminal fitting T corresponding to the final end of the continuous body T10 can be transported into the porter 37. The auxiliary transport claw 36H is disposed between the feed claw 36D and the porter 37 in the transport direction of the continuous body T10, and is provided in the terminal holder 35 through an insertion hole 35C formed on the front surface of the terminal holder 35. Is configured to be engageable with the terminal fitting T at the final end. The auxiliary transport claw 36H is provided on a support shaft 36 parallel to the support shafts 36F and 36G.
By being supported by J, the terminal holder 35
It is configured to be displaceable between an engaging position (a position shown by a solid line in FIG. 8) and a retracted position retracted from the terminal holder 35, and is urged to the engaged position by a torsion coil spring 36K. Have been. Then, the terminal fitting T at the final end is connected to the porter 3 by the feed action of the feed claw 36D.
7 can be sent.

Next, a cutting unit 38 for separating the terminal fitting T sent to the porter 37 from the continuous body T10.
Will be described in detail. First, referring to FIG. 5, an angle 38A is attached to the back surface of the columnar body 12. The angle 38A extends horizontally, and a cylinder 38B is mounted on the upper surface thereof. Cylinder 38B
Extends in the front-rear direction, and has its rod 38C facing forward. The rod 38C has a cutter block 3
8D is fixed, and a cutter 38E for cutting is detachably attached to the cutter block 38D. The cutter 38E is disposed between the terminal holder 35 and the porter 37 so as to be able to advance and retreat when viewed from the side shown in FIGS. The cutter 38E retracts from between the terminal holder 35 and the porter 37 by the contraction of the cylinder 38B, and enters between the terminal holder 35 and the porter 37 by the extension of the cylinder 38B. Thus, the terminal fitting T is separated from the continuous body T10. Note that an adjuster 38F for attaching and detaching the cutter block 38D is attached to the back surface of the cutter block 38D.

As described with reference to FIG. 7A, the covering sheet T5 of the continuous body T10 is continuous with the base portion T6 covering the terminal fitting T via the tab T7. Rather than punching out T7, the terminal fitting T is cut off from the continuum T10 by cutting just the center of the tab T7 so as not to generate chips. As a result, in the present embodiment, there is an advantage that a vacuum or the like is not required, and an adverse effect due to punching waste can be prevented.

Next, the porter 37 will be described in detail with reference to FIGS. FIG. 9 is a schematic front view showing the main part of FIG. Referring to FIGS. 6 and 9, the porter 37 is a container whose outer shape is formed into a substantially cubic shape, and has a back shaft 37A integrally attached to the rear surface thereof. On one side that is continuous with the back,
Opening 3 for receiving terminal fitting T from continuum T10
7B is formed. An insertion / extraction hole 37C for inserting / extracting a rod pin 39C, which will be described later, is formed in a surface facing the opening 37B.

The support shaft 37A is rotatably supported via a bearing 37D. The bearing 37D is mounted on the movable plate 3
7E is fixed to the upper surface. As shown in FIG. 9, the movable plate 37E has a side plate 37 fixed in a substantially T-shape when viewed from the front.
F is integrally provided, and is attached to the rod 37H of the cylinder 37G via the side plate 37F. The cylinder 37G is connected via a mounting frame 37J,
The member is fixed to the base 11. And while the cylinder 37G is reducing the length of the rod 37H, the porter 37 can make the opening 37B face the downstream end of the terminal holder 35, and when the rod 37H extends, the porter 37 37 is the pressure unit 20
, That is, between the pressing unit 21 and the pressure receiving unit 22.

Next, referring to FIG. 8, a timing pulley 37K is fixed to the rear end of the support shaft 37A, and a timing belt 37L is attached to the timing pulley 37K.
Is wound. The timing belt 37L is wound around a timing pulley 37M. The timing belt 37L is connected to a rotary actuator 37N mounted on the upper surface of the movable plate 37E via the timing pulley 37M. The attitude of the porter 37 can be changed by rotating the support shaft 37A. That is, as shown in FIG. 8, when the porter 37 faces the downstream end of the terminal holder 35, the opening 37B of the porter 37 faces upward, and the terminal fitting T can be received from the terminal holder 35. The posture is maintained. At the same time, the porter 37 is moved by the pressure unit 20 by the cylinder 37G described above.
When the porter 37 is conveyed between the die sets 21 and 22, the porter 37 is rotated clockwise in FIG.
The porter 37 is configured to be displaced such that the porter 37 is opened between the die sets 21 and 22.

Next, from the porter 37 transported between the die sets 21 and 22 from the downstream end of the terminal holder 35, the terminal fitting T is transported between the die sets 21 and 22.
The sending unit 39 as sending means will be described with reference to FIG. As shown in FIG.
On the upper surface of E, an L-shaped mounting frame 39A in front view is fixed, and through this mounting frame 39A,
A cylinder 39B is carried. The above cylinder 39B
Extend from side to side, with its rod pin 39C facing the side of the porter 37. Then, as described above, when the porter 37 is conveyed between the die sets 21 and 22 and rotates, the rod pin 39C is set so as to face the insertion hole 37C formed on the bottom surface of the porter 37. I have. When the cylinder 39B extends the rod pin 39C, the rod pin 39B
Abuts on the terminal fitting T accommodated in the porter 37 via the insertion / extraction hole 37C, and the terminal fitting T is attached to the die set 2.
It is configured so that it can be sent between 1 and 22.

Next, the lead wire clamp 40 for clamping the lead wire R to be supplied to the terminal fitting T sent out between the die sets 21 and 22 will be described in detail. With reference to FIGS. 1, 4, 6, and 7, the lead wire clamp 40 includes a cylinder block 41. The cylinder block 41 includes a pair of rods 42 that move up and down.
This rod 42 has a movable clamp piece 4
3 is fixed. The movable clamp piece 43 extends substantially horizontally, and its front end projects slightly forward from the front surface of the cylinder block 41.

On the other hand, a fixing piece 44 having a rectangular cross section is fixed to the front surface of the cylinder block 41. The upper end surface of the retaining piece 44 faces the lower surface of the front end of the movable clamp piece 43. The cylinder block 41 contracts the rod 42 and lowers the movable clamp piece 43 so that the lead wire can be clamped between the stop piece 44 and the movable clamp piece 43.

As shown in FIG. 1, in this embodiment,
A pair of positioning pieces 45 for positioning the lead wire are fixed to the upper end surface of the above-mentioned fixing piece 44, and a front opening groove 4 formed in a substantially V-shape at the front of the positioning piece 45.
By inserting the lead wire into 5A, the lead wire can be precisely positioned on the upper end surface of the fixing piece 44.

As shown in FIG. 8, in order to hold the cylinder block 41, the lead wire clamp 40 has a mounting plate 46. The mounting plate 46 is a metal member integrally provided with a horizontal portion 46B fixed to the lower surface of the above-described movable plate 37E with bolts 46A and a mounting portion 46C extending perpendicularly from the end surface of the horizontal portion 46B. The mounting portion 46B is formed with a pair of long holes 46D which are arranged vertically and extend in parallel with each other in the horizontal direction. Bolts 46E which pass through the long holes 46D,
The cylinder block 41 is fixed to the mounting portion 46B. Here, by adopting the long hole 46D, the cylinder block 41 can be attached to the mounting plate 46 or
The mounting interval in the front-rear direction is fixed to the movable plate 37E so as to be adjustable. Then, as shown in FIGS. 1 and 6, the cylinder 37G carrying the movable plate 47E
However, when the rod 37H is contracted so that the porter 37 is located at the downstream end of the terminal holder 35, the movable clamp piece 43 and the fixing piece 44 of the lead wire clamp 40 are connected to the die sets 21 and 22. And the lead wire to be crimped to the terminal fitting T supplied to the pressure unit 20 is clamped in a state where the lead wire is positioned. In other words, the cylinder 37G is connected to the lead wire clamp 40 by the
And a retreat position where the porter 37 retreats to the worker side so as to oppose the porter 37 to the side of the die sets 21 and 22.

Next, a positioning unit 50 as a lead wire positioning means for positioning a lead wire to be clamped by the lead wire clamp 40 will be described in detail with reference to FIGS. 1, 4 and 5. . First, in the present embodiment, the positioning unit 50
A first cylinder 51 extending in the front-rear direction is provided. The first cylinder 51 is mounted on the right side surface of the above-described support body 12 via a mounting plate 52, and a pair of rods 51A is directed forward. A block 53 is fixed to the distal end of the rod 51A, and a second cylinder 55 is attached to an upper end of the block 53 via a mounting bracket 54. The second cylinder 55 is disposed along the left-right direction, and its rod 56 is
Die set 21 and 22 side. In the configuration of the positioning unit 50 of the present embodiment, the first cylinder 5
1 causes the rod 51A to extend, thereby causing the rod 56 of the second cylinder 55 to face between the pressurizing unit 21 and the pressure receiving unit 22 of the pressurizing unit 20, and reducing the length of the rod 51A. , The second cylinder 55 is retracted rearward, and the space (opposed position) on the right side of the pressurizing unit 20 is displaced to a release position where it is released as a working space for arranging the shield wire. ing.

The second cylinder 55 extends the rod 56 when the rod 56 faces between the pressurizing section 21 and the pressure receiving section 22, so that the die sets 21, 22 are extended. It is configured such that it can enter the terminal fitting T interposed therebetween and face the end face to the position where the end of the lead wire is to be positioned. Next, the sensor attached to the main unit 2 will be described in detail.

First, referring to FIG. 10 which is an enlarged perspective view showing a main part of the present embodiment, on the front surface of the above-mentioned support 12, it is arranged slightly above the pressure receiving part 22 of the pressure unit 20. The optical sensor C1 is attached. The optical sensor C1 is for detecting whether or not the terminal fitting T or the like remains between the die sets 21 and 22. In the crimping operation described later, the positioning unit 50 interferes with the operator's hand. This is to prevent A detection signal from the optical sensor C1 is input to a microprocessor (not shown) in the control device 6.

Next, referring to FIG. 1, a mounting bracket 61 is fixed to the left side surface of the columnar body 12, and the rear end of the mounting bracket 61 is connected to the terminal formed in a channel shape. It faces the slit portion of the holder 35. An optical sensor C2 is provided at the rear end of the mounting bracket 61.
The optical sensor C2 faces the terminal fitting T in the terminal holder 35.

As shown in FIG. 8, the optical sensor C2 is for detecting the presence or absence of the terminal fitting T (continuous body) in the terminal holder 35. In the present embodiment, the stopper claw of the transport unit 36 is used. The detection position is set so that 36E detects the terminal fitting T locked from the upstream side. The detection signal of the optical sensor C2 is also transmitted to the control device 6
Is input to a microprocessor (not shown) in the inside.

The microprocessor in the control device 6 controls the main unit 2 as described below. FIGS. 11 to 13 are flowcharts showing the crimping operation according to the present embodiment. FIGS. 14 and 19 are plan schematic partial views showing one process of the crimping operation according to the present embodiment, and FIGS. FIGS. 18 and 20 to 22 are perspective views showing one step of the crimping operation according to this embodiment, and FIG. 16 is a schematic front view showing one step of the crimping operation according to this embodiment.

First, referring to FIG. 11, when starting the crimping operation, a power switch on the operation panel 3 (see FIG. 2) is turned on (step S1).
Is set to the automatic side (step S
2). As a result, a terminal supply step (described below from step S27 in FIG. 13) is automatically performed, and the die set 2
A crimp terminal T is disposed in advance in each of the first and second terminals. The cylinder 37G has a reduced length of the rod 37H.
3 and the upper surface of the fixing piece 44 facing the front end,
The die set 2 of the pressure unit 20 is
They are opposed between Nos. 1 and 22 (see FIG. 14). On the other hand, FIG.
As shown in FIG. 4, the first cylinder 51 of the positioning unit 50 has its rod 51A extended so that the rod 56 of the second cylinder 55 is opposed between the die sets 21 and 22, and The cylinder 55 is also inserted into the terminal fitting T between the die sets 21 and 22 so that the rod 56 can be extended to position the end of the lead wire.

Next, while positioning the lead wire R1 of the lead wire R with the rod 56, the operator moves the lead wire R1.
Is set on the lead wire clamp 40 (step S
3). When the foot switch 7 (see FIG. 2) is depressed in this state (step S4), the cylinder block 41 of the lead wire clamp 40 lowers the pair of rods 42 and clamps the lead wire R (step S5). Immediately thereafter, in the positioning unit 50, the second cylinder 55 causes the rod 56 to contract and retract from the space between the die sets 21 and 22 (step S6).
As the first cylinder 51 shortens the rod 51A, the second cylinder 55 is retracted to the rear of the right side of the apparatus main body 2, and the right side of the die sets 21 and 22 is released as a work space (step S7). ).

In this state, the operator visually checks the lead R of the lead R (step S8). In the present embodiment, since the angle adjustment unit 8 (see FIG. 2) described above can freely change the inclination angle of the main body device 2 according to the height of the worker, it is easy for any worker to see. In this state, this confirmation work can be performed.

If the operator confirms that the clamped state of the lead wire R is not good, the operator operates the operation panel 3 (step S9) to forcibly open the lead wire clamp 40 and release the lead wire R. (Step S10). As a result, the first cylinder 51 of the positioning unit 50 automatically extends the rod 51A (step S11), and then the second cylinder 55 automatically extends the rod 56. The state returns to the state where the positioning of R1 can be performed again (step S12). In this state, returning to step S5 described above, the operation of positioning the lead wire R is repeated.

When the step of clamping the lead wire R is completed,
The crimping step is started. Referring to FIGS. 12 and 15, in the crimping step, first, an operator grips the ends of shielded wires S that have been peeled in advance with both hands, and holds core wire S1 and drain wire S2 as shown in FIG. As described above, the terminal fitting T is set (step S13). Then, FIG.
As shown in FIG. 6, when the foot switch 7 is depressed again with the shielded wire S held by the right hand (step S1).
4), as shown in FIG. 17, the pressurizing section 20 is operated, and the terminal fitting T is caulked between the die sets 21 and 22 (step S15).

When the crimping is completed, as shown in FIG.
The pressurizing portion 21 of the die sets 21 and 22 is raised (Step S16), and the lead wire clamp 40 is opened to release the lead wire R (Step S17). Here, it is determined by the above-mentioned optical sensor C1 whether or not the work, that is, the crimped terminal fitting T or the shielded wire S or the assembly of both remains in the die sets 21 and 22 (step S18). , Optical sensor C1
During the detection of the terminal fittings T and the like, the drive of the entire apparatus main body 2 is on standby under the control of the microprocessor in the control device 6, so that the cylinders 37G and 51 are connected to the rods 37H and 52, respectively. There is no driving.

When the worker removes the swaged shield wire S from the die sets 21 and 22, a process for transporting the terminal fitting T into the die sets 21 and 22 is automatically performed. As shown in FIG. 19, in this step, first, the cylinder 37G extends the rod 37H, and makes the movable plate 37E protrude forward. As a result, the lead wire clamp 40 is retracted forward from the die sets 21 and 22, and the porter 37 carried by the movable plate 37E is connected to the terminal fitting T.
Is transported between the die sets 21 and 22 in a state where it is stored (step S19). Further, the rotary actuator 37N operates so that the opening 37B of the porter 37 is opened between the die sets 21 and 22 before the porter 37 arrives between the die sets 21 and 22.
7 is rotated (step S20). As a result, FIG.
0, the terminal fitting T accommodated in the porter 37.
Is directed between the die sets 21 and 22 in an intended posture.

Next, as shown in FIG. 21, the cylinder 39B of the delivery unit 39 (see FIG. 19) is
By extending 9C, the rod pin 39C passes through the insertion / extraction hole 37C formed in the porter 37. In this embodiment, the rod pin 39C comes into contact with the cut-and-raised piece T2 of the terminal fitting T in the porter 37, and the terminal fitting T To die sets 21 and 22
It is sent out in between (step S21). Thereafter, when the rod pin 39C retracts from the porter 37 (step S2).
2), as shown in FIG.
7E is retracted backward (step S23). In the process of retracting the movable plate 37E, the porter 37
Is rotated again by the rotary actuator 37N, and is returned to a position in which the terminal fitting T can be received from the terminal holder 35 (see FIG. 1) (step S24). At the same time as the movable plate 37E is retracted, the first cylinder 51 of the positioning unit 50 extends the rod 51A (Step S25), and then, within the terminal fitting T sent out into the die sets 21 and 22, The second cylinder 55 extends the rod 56 so that the lead wire R can be positioned (Step S26). When step S26 is completed, the lead wire R
The operation returns to the setting (step S3). At the same time, the terminal supply section 30 performs a terminal supply operation.

Referring to FIG. 12, FIG. 13 and FIG. 8, the retracting operation of movable plate 37E described above (step S2).
3. When the step S24) is completed, the cutter 38E is retracted (step S27). In this state, the transport unit 36 is operated to lower the feed claws 36D, thereby performing the feeding operation of the terminal fitting T (step S28). Then, the back flow of the continuum T10 of the terminal fitting T is prevented by the action of the stopper claw 36E (step S29), and in this state, the continuum T10
Terminal fitting T corresponding to the downstream end of the porter 37 is accommodated in the porter 37. Thereafter, as the cutter 38E advances, the tab T7 positioned between the terminal holder 35 and the porter 37 is cut in the middle as described above (step S30).

As a result, the terminal fitting T is cut from the continuous body T10 and can be transported by the porter 37 into the die sets 21 and 22 as described above. Then, by repeating the above-described steps, the terminal fitting T can be continuously crimped to the shielded wire S. Here, in the present embodiment, the step of cutting the terminal fitting T from the continuous body T10 (steps S27 to S30) and the crimping step by the die sets 21 and 22 (steps S3 to S26) can be performed in parallel. . As a result, there is an advantage that efficiency is improved.

By repeating the above-mentioned crimping process, the continuous body T10 of the terminal fitting T is sequentially consumed,
Finally, the terminal fitting T that constitutes the end of the continuum T10 is
It is transported to the terminal holder 35. Here, in the present embodiment, as shown in FIG.
By using 6H, the terminal fitting T at the final end can be transported into the porter 37. For this reason, in this embodiment, since the continuum T10 can be used up to the last end, there is an advantage that the economy is improved.

Next, when the terminal fitting T at the final end is transported to the porter 37, the reel 31 needs to be replaced. Therefore, in the present embodiment, the optical sensor C2 described above detects whether or not the terminal fitting T (continuous body T10) is in the terminal holder 35 every time the terminal fitting T is supplied (step S31). While the terminal fitting T is present, the process returns to step S27 to repeat the terminal supply. When the terminal fitting T runs out, the terminal is warned of disconnection (step S22) and the operator is notified. Thereafter, when the operator replaces the reel 31 (step S23), the crimping step of the terminal fitting T is restarted.

As described above, in the configuration of the present embodiment, even if the operator delays the manual work after crimping for some reason, the lead wire clamp 40 or the second cylinder 55 protrudes toward the worker. Never. Therefore, there is a remarkable effect that the unexpected operation of the lead wire clamp or the second cylinder 55 does not collide with the operator's hand, and a safe operation can be secured.

In particular, in the configuration of this embodiment, the movable plate 37E
As a result, the porter 37 and the lead wire clamp 40 carried on the main body 2 are integrally conveyed in a safe state. As a result, there is an advantage that both simplification of the entire main body device 2 and safety can be achieved. is there. Further, in the configuration of the present embodiment, the worker and the second cylinder 55 can safely share a working space for disposing the shielded wire S in the die sets 21 and 22, so that the There is an advantage that both miniaturization and safety can be achieved.

The above embodiment is merely a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment.

[0060]

As described above, in the configuration of the present invention, even if the worker delays the manual work after crimping for some reason, the lead wire clamp or the positioning member does not protrude toward the worker. . Therefore, there is a remarkable effect that the unexpected operation of the lead wire clamp or the positioning member does not collide with the operator's hand and secures a safe operation.

In particular, in the structure of the first aspect, the porter and the lead wire clamp are integrally transported in a safe state, so that both simplification of the entire apparatus and safety can be achieved. There is an advantage that you can. Claim 2
In the configuration of (1), an operator and the positioning unit can safely share a work space for disposing the shielded wire in the die set, so that the apparatus can be made smaller and safer. There is.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a main part of a terminal crimping apparatus for a shielded wire according to an embodiment of the present invention.

FIG. 2 is a perspective view showing the appearance of the terminal crimping apparatus for a shielded wire of FIG. 1;

FIG. 3 is a right side view of FIG. 2;

FIG. 4 is a front view showing a main part of the terminal crimping apparatus for a shielded wire of FIG. 1;

FIG. 5 is a right side view showing a main part of the terminal crimping apparatus for a shielded wire of FIG. 1;

FIG. 6 is a left side view showing the main part of the shielded terminal crimping device of FIG. 1;

7A and 7B are diagrams of a terminal fitting used in the present embodiment, wherein FIG. 7A is a perspective view before swaging, FIG. 7B is a front view before swaging the terminal fitting with a shield wire, and FIG. C)
It is a front view after swaging.

FIG. 8 is an enlarged view of a main part of FIG. 6;

FIG. 9 is a schematic front view showing a main part of FIG. 1;

FIG. 10 is an enlarged perspective view showing a main part of the present embodiment.

FIG. 11 is a flowchart illustrating a crimping operation according to the present embodiment.

FIG. 12 is a flowchart illustrating a crimping operation according to the present embodiment.

FIG. 13 is a flowchart illustrating a crimping operation according to the present embodiment.

FIG. 14 is a schematic partial plan view showing one step of a crimping operation according to the present embodiment.

FIG. 15 is a perspective view showing one step of a crimping operation according to the present embodiment.

FIG. 16 is a schematic front partial view showing one step of a crimping operation according to the present embodiment.

FIG. 17 is a perspective view showing one process of a crimping operation according to the present embodiment.

FIG. 18 is a perspective view showing one step of a crimping operation according to the present embodiment.

FIG. 19 is a schematic plan view showing one step of a crimping operation according to the present embodiment.

FIG. 20 is a perspective view showing one step of a crimping operation according to the present embodiment.

FIG. 21 is a perspective view showing one step of a crimping operation according to the present embodiment.

FIG. 22 is a perspective view showing one step of a crimping operation according to the present embodiment.

[Explanation of symbols]

 Reference Signs List 3 operation panel 6 control device 7 foot switch 20 pressure unit 21 pressure unit (die set) 22 pressure receiving unit (die set) 30 terminal supply unit 35 terminal holder 37 porter 37G cylinder (displacement member) 40 lead wire clamp 50 positioning unit 51 First cylinder (displacement member) 55 Second cylinder (positioning member) C1 Optical sensor (detection means)

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01R 43/04-43/058

Claims (2)

(57) [Claims] A shielded terminal crimping device for crimping a terminal fitting for connecting a grounding lead wire to a drain wire of the shielded wire exposed from an end of the stripped shielded wire, comprising: a pair of die sets; A pressure unit for caulking the terminal fitting with the die set; a detecting means for detecting the presence or absence of a work in the die set; and a lead wire for clamping the lead wire on a side of the die set. A clamp, a terminal fitting supply portion including a porter for transferring the terminal fitting to the die set by being displaced integrally with the lead wire clamp, and a clamp position where the lead wire clamp faces the side of the die set. A displacement member displaced to a retracted position retracted to the worker side so that the porter faces the side of the die set; The displacement member is automatically controlled after the terminal fitting is crimped, thereby displacing the lead wire clamp from the clamping position to the retracted position, and controlling the terminal supply by the terminal fitting supply unit based on a predetermined sequence. A control device, wherein the control device waits for the displacement member to drive the lead wire clamp to the retracted position and for terminal supply by the terminal fitting supply unit while the detection unit is detecting the work. A terminal crimping device for a shielded wire, characterized in that it is a device. 2. A terminal crimping device for a shielded wire for crimping a terminal fitting for connecting a grounding lead wire to a drain wire of the shielded wire exposed from an end of the stripped shielded wire, comprising a pair of die sets. A pressure unit for caulking the terminal fitting by the die set; a detecting means for detecting the presence or absence of a work in the die set; a terminal fitting supply unit for supplying the terminal fitting to the die set; A positioning member for positioning the lead wire to be held by the terminal fitting with respect to the terminal fitting from the side of the die set; a positioning member for positioning the positioning member facing the side of the die set; A displacement member for displacing the side of the set to a release position for releasing as a working space for placing a shielded wire; A control device that automatically controls the displacement member after crimping, displaces the positioning member from the release position to the positioning position, and controls the terminal supply by the terminal fitting supply unit based on a predetermined sequence. The control device is configured such that, while the detecting means is detecting the workpiece, the displacement member drives the positioning member to the clamp position and waits for terminal supply by the terminal fitting supply unit. Characteristic terminal crimping device for shielded wires.