JPH0112792Y2 - - Google Patents

Description

[Detailed description of the invention] This invention consists of a plurality of groups of crimp electrical connectors arranged side by side at a certain interval with the wire end insertion openings in a certain direction and in a parallel position, integrated into a band shape through a plate material. a conveyance device that intermittently conveys the connected crimped electrical connector strips sequentially along the direction in which the group of crimp electrical connectors are juxtaposed at a constant pitch corresponding to the constant interval; Holding the conveyed and supplied crimping electrical connector, while the conveying device is in a stopped state, the crimping electrical connector with the wire end inserted is moved from a direction perpendicular to the direction in which the wire end is inserted. The present invention relates to crimping equipment in which a crimping machine including a crimping device that performs crimping by a clamping pressure action, and a drive device that drives the conveying device and the crimping device is installed beside an intermittent electric wire conveying device.

In such crimping equipment, if the insertion opening of the connector is U-shaped, the wire end can be inserted into the insertion opening from the same side as the crimping direction.
As shown in the figure, by supplying the wire end a so that it is positioned above the U-shaped insertion port 1A', the crimping operation itself causes the wire end a to be placed in the insertion port 1A. ’, which simplifies the operation of the equipment, thereby making it easier to downsize the equipment itself and simplify its structure. The wire end insertion direction is perpendicular to the crimping direction, which is the cylinder axis direction, and the wire end cannot be inserted into the insertion opening with the crimping operation. The end of the wire must be inserted into the socket in advance by a separate operation.

In order to automate the insertion of the end of a wire into the insertion port, for example, when an intermittent wire transfer device is moved in the longitudinal direction of the wire, generally the intermittent wire transfer device is connected to a plurality of various types. The crimping machines are relatively large in size and are commonly used for crimping machines.
In other words, since there are crimping machines that do not require such insertion of the wire end, this type of crimping machine would lead to an unreasonably large and complicated insertion mechanism, making the equipment impractical from a cost standpoint. It had some drawbacks.

Therefore, conventionally, for example, as disclosed in Japanese Patent Application Laid-Open No. 53-139194, a crimping electrical connector is mounted and held on the fixed die side of a crimping device, and the end of the wire is held at a fixed position. the fixing die is moved so that the crimp electrical connector is inserted into the sleeve, and the holding state of the crimp electrical connector is released at a position where the wire end is inserted relative to the crimp electrical connector. After that, a structure is known in which the crimping electrical connector and the end of the electric wire are crimped by moving a movable die.

In the case of the structure described above, the above-mentioned drawbacks can be overcome by moving the relatively lightweight fixed die, but it takes a long time until the crimping electrical connection is fitted onto the end of the wire and the crimping is completed. During this period, a device is required to hold the crimped electrical connector on the fixed die so that it does not shift, resulting in a complicated structure.If there is no device to hold it, it will be difficult to move the fixed die or during crimping work. There were disadvantages in that the crimp electrical connector was easily misaligned and the end of the wire was not inserted properly into the crimp electrical connector, resulting in poor crimping work.

The present invention has been developed in view of the above-mentioned circumstances, and it is possible to maintain the crimp electrical connection device without any displacement.
Another object of the present invention is to provide crimping equipment that allows the end of an electric wire to be properly inserted into a crimping electrical connector and crimped without using a special holding device.

In order to achieve the above-mentioned object, the crimping equipment according to the present invention includes a fixed die and a movable die that moves near and far to perform a crimping operation at a position opposite to the fixed die. and are integrally assembled to a movable frame that is attached to a fixed frame equipped with the drive device so as to be able to reciprocate in the insertion direction of the electric wire end, and The driving device is configured to be reciprocally movable, and the movable die of the crimping device has a clamping and holding position where the movable die of the crimping device clamps the end portion of the electric wire, and a crimping and cutting position where the movable die of the crimping device clamps the electric wire end portion, and a crimping and cutting position where the crimping electrical connector is crushed.
The movable member and the drive device are connected to the crimping device through a movable member so that the operating position can be changed to a permissible position for releasing the crimping action, and the movable member and the drive device are connected to the wire end insertion position of the movable member. The movable frame is further provided with a movable frame drive mechanism that reciprocates the movable frame once when the intermittent electric wire conveyance device stops conveying the electric wire. , the movable frame drive mechanism and the drive device are connected while the movable frame is moved back and forth in the insertion direction of the wire end with the movable die in the clamping and holding position, and the movable die is in the allowable position. A feature of the present invention is that the movable frame is linked to move back in a direction opposite to the insertion direction.

In other words, the large and heavy frame equipped with the drive device is fixed in position, and only the light and small frame with the built-in conveyor and crimping device is inserted with the wire end into the crimping electrical connector. Since the drive mechanism for inserting and moving is simple, compact, and economical, the fixed die and movable die sandwich the crimp electrical connection tool, making it easy to connect. Since the crimping electrical connector is moved to the wire end insertion and crimping position in this state, no special device is required to hold the crimping electrical connector so that it does not shift. In addition, since the end of the wire can be inserted securely into the crimping electrical connector, and the wire is crimped in the inserted state, the crimping stroke of the movable die is short, and the crimping stroke is short and can be performed smoothly and quickly without misalignment. The crimping work can be carried out, and furthermore, it can be automated.

Hereinafter, an embodiment of the present invention will be described based on the drawings. As shown in FIG. A crimping machine 4 is provided beside the wire intermittent conveying device 5 for crimping a crimping terminal band 3 formed by integrally connecting adjacent terminals of a group of terminals 1 (an example of crimped electrical connectors) in a band shape via a plate 2. In the crimp terminal 1, a cylindrical portion connected to the wire end a of a metal conductive terminal member 1B is inserted and held in a small-diameter cylindrical portion on one end side of an insulating sleeve 1A made of synthetic resin. The electric wire end portion a is different so that its conductive core wire end portion is inserted into the connection tube portion of the terminal member 1B, and its coated end portion is inserted into the large diameter tube portion on the other end side of the sleeve 1B. By being plastically crushed in the diametrical direction as a whole in the inserted state, it is electrically and mechanically connected to the end portion a of the electric wire, and the sleeve 1A and the plate material 2 have a band shape. It is integrally molded.

The crimping machine 4 includes a device 6 that intermittently conveys the terminal strip 3 sequentially along the direction in which the terminals 1 are arranged in a fixed pitch corresponding to the terminal spacing, and a device 6 that conveys and supplies the terminal strip 3 unit by unit. At the same time, when the conveying device 4 is stopped, the supply holding terminal 1 and the wire end a inserted therein are crimped and connected, and at the same time, the crimped terminal 1 is cut and separated from the terminal band 3. and a drive device 8 that drives both of these devices 6 and 7.

The electric wire intermittent conveying device 5 is rotatable intermittently in a direction parallel to the conveying direction by the terminal band conveying device 6, and transfers the electric wires to a plurality of positions at appropriate intervals in the rotation direction. a... is held in a position facing the same direction as terminal 1,
A chain 5A is provided to position the wire ends a one by one in front of the crimping section of the crimping device 7 each time the crimping device 7 rotates intermittently.

The terminal strip conveying device 6 transports the terminal strip 3 one time each time the movable member 9, which is capable of reciprocating up and down, moves one reciprocation.
A guide 6A for pitch feeding and slidingly guiding the terminal strip 3 to the crimping part, an elastic presser plate 6B for preventing the terminal strip 3 from floating on the guide 6A, and an upper end position of the movable member 9. As the terminal strip 3 moves downward from the top, the terminal strip 3 is moved downward in the conveying direction while engaging with the terminal 1, thereby pushing the terminal strip 3 one pitch at a time, and moving the movable member 9 downward. The feeder is pivoted to the movable member 9 so as to swing into engagement with the terminal 1 located adjacent to the engagement terminal 1 on the upper side in the conveyance direction by the biasing force of the spring 6a as the feeder moves upward. It is composed of a claw 6c.

The crimping device 7 performs one crimping operation every time the movable member 9 moves back and forth once, and has fixed dies 7A, 7A' that receive and support the terminals 1 conveyed and supplied by the terminal band conveying device 6. The supply terminal 1 can be held between the pair and the fixed dies 7A, 7A', and the crimping and cutting operation is performed as the movable member 9 moves downward, and as the movable member 9 moves upward. , the fixed dies 7A, 7A' and the movable dies 7B, 7B' are attached to the movable member 9 via bolts 7a so as to be retracted to a position _P3 that allows terminal supply upwards. .

Each time the drive device 8 operates intermittently, the movable dies 7B, 7B' move to a position where the supply terminal 1 is held between the pair of fixed dies 7A, 7A' as shown in FIG. 7A, B, and C. The movable member 9 is moved from P ₁ as a starting point to a crimp-cutting position P ₂ , an allowable position P ₃ , and a clamping position P ₁ in order, and the movable member 9 is moved one rotation via a motor 8A and a clutch 8B. The rotating body 8C is intermittently driven, and the rotating body 8C is interlocked via a cam groove 8a and a cam follower 8b so as to move back and forth once every rotation, and is linked to the movable member 9 by forward movement. A cam member 8E presses and moves the member 8D downward so that the movable dies 7B, 7B' operates from the clamping and holding position _P1 to the crimping cutting position _P2 , and the cam member 8C is attached to the cam 8c attached to the rotating body 8C. By being pressed and swung at the timing when 8E is moving backward, the linking member 8D is moved upward so that the movable dies 7B and 7B' operate from the crimping cutting position _P2 to the allowable position _P3 , The movable dies 7B, 7B' are moved from the permissible position _P3 to the clamping position _P1 by swinging by the biasing force of the spring 8d as the pressure is subsequently released by the cam 8c. It is configured by providing a swing arm 8F that moves the linking member 8D downward. Note that the portion of the linking member 8D pressed by the cam member 8E and the portion of the swinging arm 8F pressed by the cam 8c are as follows:
It is composed of rollers 8e and 8f. 8G in the diagram
is a roller that prevents the cam member 8E from floating up.

Of the movable dies 7B and 7B', the die 7B that acts on the small diameter cylindrical portion of the terminal 1 is attached to the movable member 9 so as to move together therewith. The die 7B' on the side that acts on the cylinder part has its bolt insertion hole 7b as a long hole,
It is attached to the movable member 9 so as to be pressed with a smaller stroke than the die 7B'.

Thus, the fixed frame 10 equipped with the drive device 8
A movable frame 11 is provided that can reciprocate only in the direction of inserting the end of the electric wire. When the movable frame 11 moves backward, the wire is fitted into the end portion a of the wire carried by the wire intermittent conveyance device 5 from the longitudinal direction, and when the movable frame 11 moves backward, the wire is detached, and the linkage with the drive device 8 is established. A mechanism 12 is provided to assemble the movable frame 11 in a maintained state and move the movable frame 11 back and forth once when the intermittent electric wire conveying device 5 stops conveying, and
A mechanism 13 is provided for regulating the wire end portion a conveyed by the wire intermittent conveyance device 5 to a position where it can be inserted into the terminal 1.

The means for maintaining the linked state of the conveying device 6 and the crimping device 7 with the drive device 8 includes a linking recess 9a at the upper end of the movable member 9 as an interlocking part that engages and interlocks with the lower end of the linking member 8b. This means is formed into a long groove along the moving direction of the movable frame 11.

The movable frame drive movement mechanism 12 includes a motor 12A.
A rotating body 12B that is rotationally driven through the rotating body 12B, a frame 12C that moves back and forth along the conveying direction with one rotation of the rotating body 12B, and a groove 12D formed in the bottom of the movable frame 11 in the frame 12C. A cam follower 12E that is engaged with the cam follower 12E and presses and moves the movable frame 11 forward as the frame 12C moves forward, and presses and moves the movable frame 11 back as the frame 12C moves backward.
It is configured by providing.

The position regulating mechanism 13 has a V-shaped clamping surface 13a,
A pair of arms 13A, 13A that can swing freely between a closed position in which the wire end a is clamped and regulated in a predetermined position and an open position that allows the wire to be transported, and a swinging base end of these arms 13A, 13A. Forming long hole 13
A pin 13 that engages with the arms 13A and 13b and is guided to move only in the vertical direction via the long groove 13C, thereby causing the arms 13A and 13A to operate in conjunction with each other.
B, a spring 13C that swings and biases the arms 13A, 13A into the open position; this spring 13C;
and an air cylinder 13D that swings the arms 13A, 13A to the closed position against the urging force of the air cylinder 13D.

A guide cylinder for guiding the insertion of the wire end a into the terminal 1 is arranged on the front surface of the dies 7B, 7B', and this guide cylinder is configured to be separable into upper and lower parts, and the upper cylinder part 14A is to the movable member 9, and
The lower cylindrical portion 14B is attached to the movable frame 11 via springs 15, 15, respectively.

Next, the operation will be explained.

As shown in FIG. 8A, fixed dies 7A, 7
13 with the supply terminal 1 being held by the movable dies 7B and 7B' and the wire end a being supplied to the front position of the crimping device 7.
A, 13A pair swings to the closed position, and the supply wire end a is regulated at a predetermined position.

As shown in FIG. 8B, the arms 13A, 13
As pair A swings open, the movable frame 11 moves forward, and the wire end a is inserted into the holding terminal 1.

As shown in FIG. 8C, the movable member 9 moves downward and the movable dies 7B, 7B' operate from the clamping and holding position _P1 to the crimping and cutting position _P2 , thereby separating the terminal 1 and the wire end a. The crimped terminal 1 is then cut from the terminal strip 3.

As shown in FIG. 8D, the movable member 9 moves upward and the movable dies 7B, 7B' operate to the permissible position _P3 , and the intermittent wire conveying device 5 starts operating.

Along with the operation of the electric wire intermittent conveying device 5,
The crimped terminal 1 is ejected from above the fixed dies 7A, 7A' together with the wire end a, and
The movable member 9 moves downward to start supplying the terminal 1 onto the fixed dies 7A, 7A', and
The movable frame 11 moves backward, and the fixed die 7
A, 7A' and movable dice 7B, 7B',
When the supply terminal 1 is clamped and held, the wire end a is supplied to a predetermined position on the front surface of the crimping part, and the above-described operation is performed.

The terminal member 1B of the terminal 1 has various shapes other than the one shown in the figure.

The crimping machine targeted by the present invention may be applied to the terminal shown in FIG.

Incidentally, although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the crimping equipment according to the present invention, and FIG. 1 is a partially cutaway perspective view of a terminal strip, and FIGS. 2 and 3 are a partially cutaway front view and a partially cutaway view of the crimping machine. Fig. 4 is a front view of the main part, Fig. 5 is a bottom view of the main part, Fig. 6 is a partially cutaway plan view of the main part, Fig. 7 A, B, and C are crimping and terminals. FIGS. 8A, 8B, 8C and 8D are explanatory views of the operation of crimping, terminal supply and wire end supply, and FIG. 9 is a perspective view of a terminal to be crimped by the conventional apparatus. DESCRIPTION OF SYMBOLS 1...Crimping electrical connection tool, 2...Plate material, 3...Connection tool band, 6...Transport device, 7...Crimping device, 7A
...Fixed die, 7B... Movable die, 8... Drive device, 9... Movable member, 9a... Interlocking part, 4...
... Crimping machine, 5 ... Wire intermittent conveyance device, 10 ... Fixed part, 11 ... Movable frame, 12 ... Movable frame drive movement mechanism, a ... Wire end, P ₁ ... Clamping holding position,
P ₂ ... Crimp cutting device, P ₃ ... Permissible position.

Claims (1)

[Scope of utility model registration request] A crimp electrical connection made by integrally connecting a plurality of crimp electrical connectors 1 in a band-like manner via a plate material 2, which are arranged side by side at a constant interval with the wire end insertion ports in a parallel orientation in a certain direction. A conveying device 6 that intermittently conveys the crimp electrical connectors 3 at regular pitches corresponding to the constant intervals sequentially along the juxtaposition direction of the groups of crimp electrical connectors 1; While the conveying device 6 is in a stopped state, the crimp electrical connector 1 with the wire end a inserted therein is held perpendicular to the insertion direction of the wire end a. A crimping machine 4 equipped with a crimping device 7 that performs crimping by clamping pressure from a direction in which wires are connected, and a drive device 8 that drives the conveying device 6 and the crimping device 7 is provided beside the intermittent wire conveying device 5. In the crimping equipment, the crimping device 7 includes:
A fixed die 7A and a movable die 7B that moves near and far to perform a crimping operation at a position opposite to the fixed die 7A are mounted on a fixed frame 1 equipped with the drive device 8.
0, the electric wire end portion a is integrally attached to a movable frame 11 that is attached to the movable frame 11 so as to be reciprocally movable in the insertion direction of the electric wire end portion a, and configured to be able to reciprocate along the insertion direction of the electric wire end portion a. At the same time, the drive device 8 moves the movable die 7A of the crimping device 7 to a clamping and holding position _P1 where the wire end portion a is clamped, a crimp cutting position _P2 where the crimp electrical connector 1 is crushed, and a crimp action. The movable member 9 and the drive device 8 are connected to the crimping device 7 via the movable member 9 so that the operating position is changed to the allowable position _P3 for releasing the crimping device. The movable frame 11 is connected to the movable frame 11 through an interlocking portion 9a that allows relative movement in the insertion direction of the electric wire end a.
A movable frame drive mechanism 12 that reciprocates the movable frame drive mechanism 12 and the drive device 8 is provided, and the movable die 7A holds the movable frame drive mechanism 12 and the drive device 8 at a holding position P1 _.
With the movable die 7A in the allowable position _P3 , the movable frame 11 moves back in the direction opposite to the insertion direction. Crimp equipment characterized by being linked together so as to perform crimping.