JPH08236255A - Semi-automatic contact crimping unit - Google Patents

Abstract

PURPOSE: To keep precise positioning of a coated electric wire W to contact metal fittings T even in a contact crimping process of the contact metal fittings T. CONSTITUTION: A stopper 44 to position a coated electric wire W to contact metal fittings T is installed. The stopper 44 is so composed as to elastically hold the metal fittings T in an anvil. When the metal fittings T is supplied, the stopper is evacuated to an evacuation position and allows the metal fittings T to be supplied to the anvil 22. Consequently, before contact crimping of the metal fittings T, a worker can carry out positioning of a coated electric wire in the terminal metal fitting T. Moreover, since the metal fittings T can be contact crimping while being held by the anvil 22 by the stopper 44, precise positioning of the coated electric wire W in the metal fittings T can be maintained in the whole contact crimping process.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a semi-automatic terminal crimping unit, and more particularly, a semi-automatic terminal crimping unit of a type in which an operator holds a stripped end of a core wire and crimps a terminal fitting. Regarding the unit.

[0002]

2. Description of the Related Art Conventionally, when crimping a terminal fitting to a core wire of a covered electric wire, the end portion of the peeled covered electric wire is manually inserted onto the terminal fitting that is automatically fed, and the anvil is removed. A semi-automatic semi-automatic terminal crimping unit that crimps a terminal fitting by driving a die set made of a crimper is known (for example, Japanese Utility Model Laid-Open No. 62-137593, No. 2-124695, No. 4-5092). No.).

In order to automatically feed the terminal fittings to the die set, a terminal strip is formed by connecting the terminal fittings in the form of a strip in the longitudinal direction through a connecting portion, and by feeding this terminal strip, the terminal strip is formed. The type of metal fittings to be fed (hereinafter, this type is called "end feed type") and the terminal fittings are connected at a right angle to the band-shaped connecting part to form a terminal band. A type in which the terminal fittings are fed by feeding out (hereinafter, this type is referred to as a "side feed type") has been developed.

In the end-feed type, since the terminal fittings and the terminal strips extend in the same direction, the terminal strips are arranged at a position facing the worker through the die set, and the terminal strip is directed toward the worker. By feeding it out, the terminal fittings are fed to the die set. In the side-feed type, since the feeding direction of the terminal fitting and the terminal strip intersect at a right angle, the terminal strip is placed on the side of the die set so that the die set and the operator are facing each other. By feeding the terminal strip in the direction orthogonal to, the terminal fittings are fed to the die set.

In any type, when the terminal fitting is crimped with the die set, the terminal fitting is sheared from the connecting portion. By the way, since the operator manually inserts the end portion of the covered electric wire into the crimped terminal fitting, the positioning of the covered electric wire with respect to the terminal fitting is likely to be unstable. Therefore, conventionally, a positioning means for positioning the end of the covered electric wire with respect to the terminal fitting has been proposed.

[0006] For example, in Japanese Utility Model No. 2-124695,
A stopper that comes into contact with the coated end of the stripped covered electric wire is provided, and the end of the covered electric wire is positioned on the terminal fitting by this stopper. In addition, Japanese Utility Model Laid-Open No. 4-5092 is provided with a stopper having a protrusion that is inserted into the wire receiving groove of the terminal fitting, and the end of the covered electric wire is abutted by bringing the end of the covered electric wire into contact with the protrusion of the stopper. The part is positioned on the terminal fitting.

Furthermore, in Japanese Utility Model Laid-Open No. 2-47793, in addition to the above-mentioned stopper, a device for detecting the position of the covered electric wire by an optical sensor and driving the die set when the normal position is detected. Is proposed.

[0008]

DISCLOSURE OF THE INVENTION The positioning means according to the above-mentioned prior art is developed only by focusing on positioning the covered electric wire on the terminal fitting, and the behavior of the terminal fitting during crimping is determined. There was no consideration for stabilizing. For example, the terminal fitting is subjected to a large caulking load (for example, 2t) when crimped by the die set as described above, and is further sheared from the connecting portion and separated from the terminal strip. If the terminal fittings are misaligned during the crimping or cutting process, good crimping accuracy should be obtained even if the end of the covered wire is precisely positioned on the terminal fittings before crimping. You cannot do it.

The present invention has been made in view of the above problems. It is possible to precisely position the covered electric wire on the terminal fitting before crimping the terminal fitting, and also to perform precise positioning in the process of crimping the terminal fitting. It is an object of the present invention to provide a semi-automatic terminal crimping unit that can maintain the state.

[0010]

In order to solve the above-mentioned problems, the structure according to claim 1 of the present invention has an anvil for receiving a bottom portion of a terminal fitting defining a wire accommodating groove opened in a substantially U shape, and an anvil. The terminal fitting is connected to the crimper for crimping the terminal fitting to the covered electric wire accommodated in the electric wire accommodation groove by caulking the terminal fitting with the anvil. The terminal metal fittings feeding part for feeding the terminal metal fittings between the crimper and the anvil by feeding out a continuous terminal strip through the parts, and the terminal metal fittings on the anvil in a state capable of relative displacement with respect to the crimper. It is configured to be displaceable between a retracted position that allows it to be fed and a positioning position that allows the covered electric wire to be positioned with respect to the fed terminal fitting, and the fed terminal metal at the positioning position. Conversely, in a semi-automatic terminal crimping unit that includes a positionable stop the end of the covered electric wire in the wire receiving groove of the terminal fitting by the terminal fitting is fed between the anvil and the crimper,
A biasing member for biasing the stopper to the positioning position so that the stopper is elastically fixed to the anvil with the load that allows the stopper at the positioning position to be displaced to the retracted position. Is a semi-automatic terminal crimping unit.

According to a second aspect of the present invention, in the semi-automatic terminal crimping unit according to the first aspect, the stopper opposes a terminal fitting fed between the anvil and the crimper so as to be able to abut. By abutting the terminal fittings, a pressure receiving surface that receives a force from the terminal fittings is displaced so as to be displaced from the positioning position to the retracted position.

According to a third aspect of the present invention, in the semi-automatic terminal crimping unit according to the second aspect, the terminal feeding section feeds out a terminal strip in which the terminal fittings are continuous along the longitudinal direction to form the terminal fittings. An end-feed type that feeds between the anvil and the crimper, the stopper is cantilevered by a support shaft parallel to the longitudinal direction of the terminal fitting, and the pressure receiving surface is It is divided by a surface intersecting with the support shaft so as to allow the terminal fitting to be fed in parallel with the support shaft.

[0013]

When the terminal fitting is fed between the anvil and the crimper, the stopper biased to the positioning position by the biasing member resists the biasing force of the biasing member. Then, it is displaced to the retracted position, and the terminal fitting is allowed to be fed between the anvil and the crimper. Then, when the terminal fitting is fed between the anvil and the crimper, the stopper is displaced to the positioning position to fix the terminal fitting to the anvil. This allows the operator to position the end of the covered electric wire with respect to the terminal fitting by the stopper when the end of the covered electric wire is housed in the wire housing groove of the terminal fitting on the anvil. You can

In this state, when the anvil is driven and the crimping operation is performed, the terminal fitting is crimped by the stopper while being fixed to the anvil, and crimped to the inserted covered electric wire. Further, in the structure according to claim 2, by receiving the terminal fitting fed between the anvil and the crimper on the pressure receiving surface, the stopper is directly driven by the terminal fitting and displaced from the positioning position to the retracted position, Allows the terminal fitting to be fed between the anvil and the crimper.

Further, in the structure according to the third aspect, even when the end feed type terminal feeding section is adopted,
The stopper is directly driven by the terminal fitting and displaced from the positioning position to the retracted position, allowing the terminal fitting to be fed between the anvil and the crimper.

[0016]

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 an embodiment in which the present invention is applied to an end feed type semi-automatic terminal crimping unit 1, and FIG. 2 is a semi-automatic terminal crimping unit 1 according to the embodiment of FIG. Is an external view of
FIG. 3 is a schematic front view of the semi-automatic terminal crimping unit 1 according to the embodiment of FIG. 1, and FIG. 4 is a left side view of the semi-automatic terminal crimping unit 1 according to the embodiment of FIG. FIG. 5 is a schematic view, and FIG. 5 is a schematic right side view showing a main part of the semi-automatic terminal crimping unit 1 according to the embodiment of FIG.

First, referring to FIG. 1, the semi-automatic terminal crimping unit 1 of the present embodiment is of an end feed type in which terminal fittings T continuous in the longitudinal direction are fed via a connecting portion T1. The terminal fitting T is an end portion W1 of the covered electric wire W,
A crimp portion T2 crimped to W2 and a connecting portion T3 that is extended to the crimp portion T2 and is connected to another terminal fitting are integrally provided, and the connecting portion T1 provides a long terminal strip. B is formed and is wound around a reel body R as shown in FIG. Further, the crimp portion T2 of the terminal fitting T
Has a substantially semi-cylindrical body portion T21. This torso T
A pair of insulation wings T22 crimped to the covered end W1 of the covered electric wire W and a pair of wire wings T23 crimped to the core end W2 of the covered electric wire W integrally extend from the arc end of 21. Has been done. The wings T22 and T23, together with the body portion T21, define a substantially U-shaped wire housing groove T24 that houses the end portions W1 and W2 of the covered wire W.

The terminal fitting T of this embodiment is mainly used as a ground terminal, and the connecting portion T3 is
It is formed in a ring shape. In the following description, with reference to the direction in which the terminal strip B of the terminal fitting T is extended,
The downstream side of the terminal strip B in the payout direction is assumed to be the front side.
Next, as shown in FIGS. 2 to 4, the semi-automatic terminal crimping unit 1 of this embodiment includes a body block 10. At a predetermined position of the main body block 10, a terminal crimping portion 20 for crimping the terminal fitting and a main part of a terminal feeding portion 30 for feeding the terminal fitting to the terminal crimping portion 20 are provided.

Referring to FIG. 3, the main body block 10 is described.
Includes a base 11 and a side plate 12 that extends upward from the left side of the base 11. A guide block 13 having a substantially U shape in plan view is fixed to the side plate 12.
The guide block 13 defines a guide groove 14 for guiding the shank 21 of the terminal crimping portion 20 described later. The guide groove 14 extends vertically up and down, and has a slit-like front opening.

On the other hand, a mounting base 15 opposed to the guide groove 14 of the guide block 13 is integrally formed on the base 11, and an anvil 22 of a terminal crimping portion 20 described later is attached to and detached from the mounting base 15. It is possible to install it. Next, the terminal crimping portion 20 faces the anvil 22 by being attached to the shank 21 guided by the guide block 13, the anvil 22 attached to the mounting base 15, and the lower end portion of the shank 21. And a cutter 24 (see FIG. 2) attached to the lower end of the shank 21 together with the crimper 23.

The shank 21 has a connecting groove 21 at the upper end thereof.
It has A and is driven up and down by a press device (not shown) connected to this connection groove 21A. With reference to FIG. 5, the anvil 22 includes a terminal fitting T.
The receiving surface 22A that receives the
A is facing upward. The receiving surface 22A is recessed and curved in a substantially U shape in a front view so as to make surface contact with the body portion T21 of the terminal fitting T. The anvil 22 is detachably attached to the attachment base 15 with a pair of bolts 25.

One of the crimpers 23 is for crimping the pair of insulation wings T22 of the terminal fitting T onto the coated end portion W1 of the coated electric wire W.
The other is for crimping the pair of wire wings T23 to the core wire end W2 of the covered electric wire W. Each of the crimpers 23 has a crimping recess 23A corresponding to the shape of the wing T22 (T23) to be crimped.

The cutter 24 cooperates with a cutter base 26 fixed to the base 11 to cut the connecting portion T1 of the terminal fitting T, and descends at the same time as the crimper 23 to connect the connecting portion T1. It is configured so that the joint portion T1 can be cut in cooperation with the cutter table 26 before the contact with the above is completed. Next, the terminal feeding unit 30 that feeds the terminal fitting T between the anvil 22 and the crimper 23 described above will be described.

With reference to FIG. 2, the terminal feeding portion 30 engages with the guide frame 31 integrally attached to the main body block 10 and the terminal metal fitting T passing through the guide frame 31, whereby the terminal metal fitting 30 is engaged. A feed pawl 32 for feeding T one by one and a link lever 33 for interlocking the feed pawl 32 with the terminal crimping portion 20 are provided. The guide frame 31 is formed by combining a plurality of metal plate members extending rearward from the back side of the terminal crimping portion 20 to define a feeding path (not shown) for feeding the terminal fitting T therein. And at its upstream end (right end in FIG. 2),
A guide plate 34 for guiding the terminal strip B of the terminal fitting T is attached. And this guide plate 34
When the terminal metal fitting T of the terminal strip B guided from the lower part of the passage passes through the feeding path, the terminal metal fitting is fed to the terminal crimping portion 20 on the downstream side of the feeding path, that is, in the front. It is like this.

The feed claw 32 is a lever-shaped main body 32.
A and a claw portion 32B formed at one end of the main body portion 32A are integrally provided. The claw portion 32B passes through the slit 35 formed in the guide frame 31 and enters the feeding passage, and thereby engages with the terminal fitting T, and the terminal fitting T is located on the downstream side of the feeding passage. It is possible to send to each one.

The main body portion 32A of the feed claw 32 is pivotally supported by a support shaft pin 36 extending in the horizontal direction orthogonal to the feed path. One end of the main body portion 32A on the other end side is a link lever. Tension coil spring 37 attached to 33
Is urged upward by. Therefore, the claw portion 32B of the feed claw 32 is constantly urged into the feeding path by the urging force of the tension coil spring 37.

The pin 36 is provided with an adjuster block 38.
It is attached to the link lever 33 via. The adjuster block 38 is configured to be movable back and forth by an adjusting screw 39 attached to the rear portion of the link lever 33. By turning the adjusting screw 39, the support position of the pin 36 is changed, and the terminal metal fitting T. The feed position can be changed according to the type.

The link lever 33 extends vertically with its lower end inclined slightly rearward, and its upper end is attached to the side plate 12 of the body block 10 by the bolt 12A.
(See FIG. 4). Further, the link lever 33 defines a cam slit 33A formed along the longitudinal direction thereof, and this cam slit 33A has
A bolt 21B attached to the rear portion of the shank 21 is connected. Then, as the shank 21 moves up and down, the bolt 21B slides in the cam slit 33A, whereby the link lever 33 pivots around the bolt 12A of the side plate 12 to move the pawl portion 33 of the feed pawl 32. The terminal fittings T are fed back and forth along the feeding path so that the terminal fittings T can be fed one by one to the terminal crimping portion 20 at a predetermined timing in conjunction with the crimping operation.

In the above-mentioned structure, the stopper unit 40 is attached to the guide block 10 of this embodiment. With reference to FIGS. 1, 3, and 4, the stopper unit 40 is formed on the support body 41 fixed to the outer surface of the side plate 12 of the main body block 10 and the lower portion of the support body 41. The guide block 13 is provided with an extending portion 42 that enters the lower portion, a stopper 44 that is axially supported by the extending portion 42 by a pin 43, and a stopper spring 45 that biases the stopper 44.

Referring to FIG. 4, the support body 41 is a substantially rectangular metal member, and a pair of elongated holes 41A extending in the front-rear direction are formed on the sides of the support body 41. Then, with the bolt 41B inserted through the long hole 41A, the side plate 12 is
The mounting position is fixed in the front-rear direction by being screwed to the outer surface of the. In addition, the support 41
A light projecting hole 41C penetrating the support body 41 diagonally to the left and right is formed at a predetermined position. 41 C of light projecting holes are set so that the opening on the left side is higher than the opening on the right side, so that the light from the left side of the device can receive the terminal fitting T on the anvil 22.
It is formed so that the inside of the electric wire housing groove T24 can be illuminated.

A recess 12B for opening the terminal crimping portion 20 is defined in the side plate 12 of the body block 10.
The extended portion 42 is inserted into the recess 12B and faces the lower portion of the guide block 13 of the main body block 10.
As shown in FIG. 1, a rectangular accommodation groove 42 </ b> A extending in the left-right direction is defined in the bottom portion of the extension portion 42, and the accommodation groove 4
The base end portion 44A of the stopper 44 is inserted into 2A. A base end portion 44A of the stopper 44 is rotatably supported by the pin 43 extending in the front and rear of the extending portion 42. A safety cover 47 is provided above the extended portion 42.
A cover holder 48 for mounting (see FIGS. 3 and 4) is arranged, and a bolt 48A is attached to the support body 41.
It is detachably attached.

The stopper 44 is a cantilever-shaped member made of aluminum whose base 43A is axially supported by the pin 43 and which extends in a direction orthogonal to the anvil 22. The stopper 44 is connected to the wire wing T23 of the terminal fitting T fed onto the anvil 22 and the connecting portion T.
3 and the covered electric wire W that is held in the crimp portion T2.
The end portions W1 and W2 of the are positioned.

Referring to FIG. 5 in more detail,
The stopper 44 is a boss-shaped base end portion 44A.
And the crimping portion T2 of the terminal metal fitting T, which is extended to the base end portion 44A.
Fixing edge 44 for fixing between the connecting portion T3 and the connecting portion T3 on the anvil 22.
B and the core wire end portion W of the covered electric wire W that has risen from the fixed edge 44B and is accommodated in the electric wire accommodation groove T24 of the crimp portion T2.
The positioning surface 44C is opposed to the positioning surface 44C, and the pressure receiving surface 44D is formed on the side opposite to the positioning surface 44C and receives the terminal fittings fed onto the anvil 22. The stopper 44 can be displaced relative to the crimper 23 by pivotally supporting the base end portion 44A on the pin 43. Also, by the pin 43,
Since the stopper 44 is supported in a cantilevered manner, the stopper 44 has a retracted position (position indicated by a chain double-dashed line in FIG. 1) that allows the terminal fitting T to be fed to the anvil 22.
Then, the covered electric wire W can be displaced to a positioning position (position indicated by a solid line in FIG. 1) where the covered electric wire W can be positioned with respect to the fed terminal fitting T.

The fixed edge 44B is formed so as to project along a smooth arc according to the shape of the terminal fitting to be fed, and the crimp portion T2 of the terminal fitting is attached to the anvil 22.
Are pressed against. By the positioning surface 44C entering between the wire wing T23 and the connecting portion T3 of the fed terminal fitting T at the positioning position,
The ends W1 and W2 of the covered electric wire W can be positioned in the electric wire housing groove T24 of the terminal fitting T.

The pressure receiving surface 44D is inclined along the direction intersecting the rotation center of the pin 43 so that the pressure receiving surface 44D becomes thinner on the fixed edge 44B side. As a result, the terminal fitting T is fed by the terminal feeding unit 30 described above, and the pressure receiving surface 44.
When abutting against D, the pressure receiving surface 44D receives a force in the feeding direction of the terminal fitting T, and the component force acts upward due to the inclination of the pressure receiving surface 44D. As a result, the stopper 44 floats upward around the axis of the pin 43 and allows the terminal fitting T to be conveyed to the anvil 22.

As shown in FIG. 1, the stop spring 45 is
A winding end 45A axially supported by the side surface of the extending portion 42 by a bolt 49, and the bolt 4 extending from the winding end 45A.
The forward portion 45B that abuts the lower surface of the bolt 50 that is parallel to 9
And a backward movement portion 45C that is curved in the opposite direction from the forward movement portion 45B and is fixed to the upper surface of the stopper 44, which is a wire made of spring steel.

The bolts 49 and 50 are arranged side by side on the side surface of the extending portion 42 with the opening of the accommodation groove 42A in between, and the forward portion 45B is accommodated in the accommodation groove 42A.
Across the opening. Then, the return section 45C
Is provided with a stopper 44 at a predetermined distance L from the forward portion 45B.
The stopper 44 is urged downward in a state in which the stopper 44 can be displaced upward by the distance L, and the terminal fitting T is fed between the anvil 22 and the crimper 23. The stopper 44 is urged to the positioning position so that the stopper 44 elastically fixes the fed terminal fitting T to the anvil 22 with a load that allows the stopper 44 to be displaced to the retracted position. There is.

In the above structure, the operator operates a switch means (for example, a foot switch) (not shown), so that a press device (not shown) drives the shank 21 of the terminal crimping portion 20, and the terminal crimping portion 20 causes the terminal metal fitting T. The caulking operation and the operation of the terminal feeding unit 30 to sequentially feed the terminal strip B to the downstream side of the feeding path in conjunction with the raising / lowering operation of the shank 21 can be performed sequentially.

First, in the terminal crimping process, the operator
The covered wire W is positioned by bringing the core wire end W2 of the covered wire W into contact with the positioning surface 44C of the stopper 44. In this state, when the operator operates the switch means, the anvil 22 is driven, the terminal metal fitting T is crimped by the stopper 44 while being fixed to the anvil 22, and is crimped to the inserted covered electric wire W. It Also,
In synchronization with this crimping operation, the cutter 24 cuts the connecting portion T1 of the terminal fitting T, and separates the crimped terminal fitting T from the terminal strip B.

Next, after the terminal crimping process, the terminal feeding section 30 is driven, and the terminal strip B is conveyed to the downstream side of the feeding path at a predetermined timing. By disconnecting, the terminal fitting B, which now constitutes the downstream end of the terminal strip B, contacts the pressure receiving surface 44D formed on the stopper 44. Then, the stopper 44 receives the force in the feeding direction of the terminal fitting B on the pressure receiving surface 44D, so that the terminal fitting T is moved by the component force acting upward.
As a result, the terminal metal fitting T is displaced from the positioning position shown by the solid line in FIG. 1 to the retracted position shown by the chain double-dashed line against the urging force of the stop spring 45, and the terminal fitting T is placed between the anvil 22 and the crimper 23. Allowed to be delivered. In the configuration of the present embodiment, by adopting the pressure receiving surface 44D as described above, even when the end feed type terminal feeding unit 30 is adopted, the stopper 44 is directly driven by the terminal fitting T, The terminal position T is displaced from the positioning position to the retracted position, and the terminal fitting T is allowed to be fed between the anvil 22 and the crimper 23.

When the terminal fitting T is fed between the anvil 22 and the crimper 23, the stopper 44 returns to the positioning position shown by the solid line in FIG. To the anvil 22. As a result, the worker can move the end portion W1 of the covered electric wire W,
When W2 is housed in the wire housing groove T24 of the terminal fitting T on the anvil 22, the ends W1 and W2 of the covered wire W can be positioned at regular positions with respect to the terminal fitting T by the stopper 44. .

As described above, in the structure of this embodiment, when the worker stores the ends W1 and W2 of the covered electric wire W in the electric wire receiving groove T24 of the terminal fitting T on the anvil 22, the stopper 44 is inserted. With this, not only can the ends W1 and W2 of the covered electric wire W be positioned at proper positions with respect to the terminal fitting T, but also when the crimping operation is performed, the terminal fitting T
Is crimped to the anvil 22 by the stopper 44, a large caulking load acts on the terminal fitting T when the terminal fitting T is crimped, and the connecting portion T1 of the terminal fitting T is sheared. Even when the terminal fitting T is moved, the terminal fitting T is not displaced, and as a result, good crimping accuracy can be obtained.

Further, the stopper 44 is directly driven by the terminal fitting T by receiving the terminal fitting T fed between the anvil 22 and the crimper 23 at the pressure receiving surface 44D.
The terminal fitting T is displaced from the positioning position to the retracted position and is allowed to be fed between the anvil 22 and the crimper 23. Therefore, the terminal fitting T is continuously fed and the terminal fitting T is stopped with a simple structure. There is an advantage that the constant can be realized.

In particular, even when the end feed type terminal feeding section 30 is adopted as in the above-described embodiment, the stopper 44 is directly driven by the terminal metal fitting T to be displaced from the positioning position to the retracted position. However, since the terminal metal fitting T is allowed to be fed between the anvil 22 and the crimper 23, the end-fed type in which the stopper is difficult to attach in the related art is not covered with the covered wire W for the terminal metal fitting T.
There is an advantage that the positioning and fixing in the crimping process of the terminal fitting T can be easily realized.

Therefore, according to the present embodiment, the covered electric wire W can be precisely positioned on the terminal fitting T before the terminal fitting T is crimped, and in the process of crimping the terminal fitting T, a precise positioning state is obtained. There is a remarkable effect that can be maintained. Next, a description will be given of an embodiment in which the present embodiment is applied to a side feed type terminal crimping unit.

FIG. 6 is a perspective view showing an essential part of another embodiment of the present invention, FIG. 7 is an external view of a side feed type semi-automatic terminal crimping unit 2, and FIG.
FIG. 2 is a schematic right side view showing a main part of the semi-automatic terminal crimping unit 2 of FIG. The side-feed semi-automatic terminal crimping unit 2 is, in principle, the same as the end-feed type, except that the feeding direction of the terminal fitting T (terminal strip B) is different. Since the arrangement and shape of the members are different due to the above-mentioned difference, in the following description, the same reference numerals are given to the members corresponding to the members of the embodiment described in FIGS. 1 to 5. The description is omitted.

First, as shown in FIG. 6, in the side-feed type semi-automatic terminal crimping unit 2, the connecting portion T1 is projected at one side portion of the long connecting member T4 at a distance, and the connecting portion T1 is projected. The terminal fittings T are integrally connected along the direction orthogonal to the longitudinal direction of the connecting member T4 via T1 to form a terminal strip B. Terminal fitting T of this embodiment
Is a female terminal and includes a connecting portion T3 connectable to a male terminal (not shown).

Referring to FIG. 7, in the side-feed type semi-automatic terminal crimping unit 2, the terminal supply section 30 feeds out the terminal strip B from the side of the terminal crimping section 20 to attach the above-mentioned terminal fitting T. It is being sent. As shown in FIG.
In the side-feed semi-automatic terminal crimping unit 2, a slide cutter 61 is attached to the front of the anvil 22 so as to be vertically movable. Slide cutter 61
In the housing groove 6 for housing the connecting member T4 of the terminal strip B.
2 are divided, and a connecting portion T1 projects from the housing groove 62 on the anvil 22. Then, the punch 63 attached to the shank 21 and facing the slide cutter 61 lowers the slide cutter 61 at a predetermined timing in conjunction with the crimping operation of the terminal fitting T, so that the connecting portion T1 is Slide cutter 61
And the anvil 22 are cut.

The stopper unit 40 in this embodiment is provided with a cantilever-shaped stopper 144 having a pin 43 on the upstream side of the terminal feeding portion 30 in the terminal feeding direction. By extending from the upstream side to the downstream side in the feeding direction and facing the anvil 22 so as to face each other, the ends W1 and W2 of the covered electric wire W can be positioned in the electric wire receiving groove T24 of the terminal fitting T. . Further, a stopper spring 45 embodied as a tension coil spring is attached to the stopper 144 on the upstream side of the pin 43 in the terminal feeding direction.
Is always urged in the clockwise direction in FIG. 6 by being stretched between the lower part of the guide block 13. As a result, the stopper 144, like the embodiment of FIG.
With respect to the retracted position (position indicated by a chain double-dashed line in FIG. 1) that allows the terminal fitting T to be fed to the anvil 22 in a state of being relatively displaceable with respect to the crimper 23, Is arranged so that the covered electric wire W can be positioned to a positioning position (position of solid line in FIG. 1) where
At the positioning position, the end portions W1 and W2 of the covered electric wire W can be positioned in the wire receiving groove T24 of the terminal fitting T with respect to the fed terminal fitting T.

The stopper 144 in the embodiment of FIG.
The fixed edge 144A that presses the space between the wire wing T23 of the terminal fitting T and the connecting portion T3 against the anvil 22 also serves as the pressure receiving surface of the terminal fitting T. Therefore, also in the configuration of FIG. 6, it is possible to achieve the same effect as that of FIG. The above-mentioned embodiments are merely examples of preferred embodiments of the present invention, and the present invention is not limited to the above-mentioned embodiments.

For example, each of the stoppers 44, 144 is constructed so as to sandwich the terminal fitting T with the anvil 22, and maintains a preferable fixed state in the entire crimping process of the terminal fitting T. However, regarding the stopper 44 for end feed, the terminal fitting T
It goes without saying that various design changes can be made within a range that does not change the gist of the present invention, for example, by adopting a configuration of sandwiching.

[0052]

As described above, according to the first aspect of the present invention.
In the configuration described, when the operator stores the end of the covered electric wire in the wire receiving groove of the terminal fitting on the anvil, the operator positions the end of the covered electric wire in a regular position with respect to the terminal fitting by the stopper. Not only can it be crimped, but when the crimping operation is performed, the terminal fittings can be crimped while being fixed to the anvil by the stoppers, so a large caulking load acts on the terminal fittings when crimping the terminal fittings. Further, even when the connecting portion of the terminal fitting is sheared, the terminal fitting is prevented from being displaced or the like, so that there is an advantage that good crimping accuracy can be obtained.

According to the second aspect of the present invention, the pressure receiving surface receives the terminal fitting fed between the anvil and the crimper, so that the stopper is directly driven by the terminal fitting to move from the positioning position to the retracted position. Since it is displaced and the terminal fitting is allowed to be fed between the anvil and the crimper, there is an advantage that continuous feeding of the terminal fitting and fastening of the terminal fitting can be realized with a simple configuration. is there.

Further, in the structure according to claim 3, even when the end feed type terminal feeding section is adopted,
The stopper is driven directly by the terminal metal fittings, displaces from the positioning position to the retracted position, and allows the terminal metal fittings to be fed between the anvil and the crimper. Also with respect to the above, there is an advantage that the positioning of the covered electric wire with respect to the terminal fitting and the fixing in the crimping process of the terminal fitting can be easily realized.

Therefore, according to the present invention, the covered electric wire can be precisely positioned on the terminal fitting before the terminal fitting is crimped, and also in the entire crimping of the terminal fitting.
A remarkable effect that a precise positioning state can be maintained is achieved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a main part of an embodiment in which the present invention is adopted in an end feed type semi-automatic terminal crimping unit.

FIG. 2 is an external view of a semi-automatic terminal crimping unit according to the embodiment of FIG.

FIG. 3 is a schematic front view of the semi-automatic terminal crimping unit according to the embodiment of FIG.

4 is a schematic left side view of the semi-automatic terminal crimping unit according to the embodiment of FIG.

5 is a schematic right side view showing a main part of the semi-automatic terminal crimping unit according to the embodiment of FIG. 1. FIG.

FIG. 6 is a perspective view showing a main part in another embodiment of the present invention.

FIG. 7 is an external view of a side-feed type semi-automatic terminal crimping unit.

8 is a schematic right side view showing a main part of the semi-automatic terminal crimping unit 2 of FIG.

[Description of symbols] 1 semi-automatic terminal crimping unit 2 semi-automatic terminal crimping unit 20 terminal crimping section 22 anvil 23 crimper 30 terminal feeding section 40 stopper unit 44 stopper 44D pressure receiving surface 144 stopper 144A fixed edge (pressure receiving surface)

Claims (3)

[Claims] Claim: What is claimed is: 1. An anvil for receiving a bottom portion of a terminal fitting that defines an electric wire receiving groove opened in a substantially U shape, and a structure that is displaceable relative to the anvil, and that the terminal fitting is mounted between the anvil and the anvil. By crimping, the crimper crimping the terminal fitting to the covered electric wire accommodated in the electric wire accommodating groove and the terminal strip that extends through the connecting portion of the terminal fitting are fed out, and the terminal fitting is placed between the crimper and the anvil. In the state where the terminal fittings to be fed and the crimper can be displaced relative to each other, the retracted position that allows the terminal fittings to be fed to the anvil and the covered electric wire to the fed terminal fittings. It is configured to be displaceable to a positioning position where it can be positioned, and at the positioning position, the end portion of the covered electric wire can be positioned with respect to the fed terminal metal fitting in the electric wire accommodation groove of the terminal metal fitting. In a semi-automatic terminal crimping unit equipped with a lid, the terminal metal fitting is fed between the anvil and the crimper, and the stopper at the positioning position is fed with a load that allows displacement to the retracted position. A semi-automatic terminal crimping unit comprising: a biasing member that biases the stopper to a positioning position so that the stopper elastically locks the terminal fitting to the anvil. 2. The semi-automatic terminal crimping unit according to claim 1, wherein the stopper opposes a terminal fitting fed between the anvil and the crimper so as to come into contact therewith, and abuts the terminal fitting. Thus, the pressure receiving surface that receives the force from the terminal fitting is partitioned so as to be displaced from the positioning position to the retracted position. 3. The semi-automatic terminal crimping unit according to claim 2, wherein the terminal feeding section feeds out a terminal strip having continuous terminal fittings along the longitudinal direction to feed the terminal fittings between the anvil and the crimper. The stopper is cantilevered by a support shaft parallel to the longitudinal direction of the terminal fitting, and the pressure receiving surface has the terminal fitting parallel to the support shaft. It is divided by a plane intersecting with the support shaft so as to allow it to be fed.