JP4454448B2 - Crimping terminal crimping device - Google Patents

Description

The present invention relates to a crimping device for crimping terminals to electric wires.

As a device for connecting a crimping terminal to the end of a covered electric wire, a terminal crimping device as described in Patent Document 1 (Japanese Patent Laid-Open No. 10-50450 is known. Normally, a terminal crimping device sends a terminal band. This unit is composed of a feeding terminal band feeding mechanism and a press mechanism that separates the terminal from the fed terminal band and crimps it to the electric wire, and these mechanisms are linked to perform continuous crimping. Be able to.

The press mechanism of the terminal crimping device includes a shank connected to the ram of the press device and a pressure unit attached to the shank.
The pressurizing unit is provided with a pressurizing member including a wire crimper and an insulation crimper, and these are moved up and down to the ram of the press device via the shank to cooperate with the pressure receiving side member. It was configured to crimp the terminals.

Here, in order to crimp the terminal between the crimper and the anvil, it is necessary to set a so-called crimp height (terminal crimping height) so as to match the crimper. Therefore, conventionally, a crimp height adjusting mechanism for adjusting the crimp height has been provided in the shank.

In such a configuration, conventionally, in order to link the terminal belt feeding mechanism and the press mechanism, both mechanisms are mechanically connected by a cam link provided in the shank. Therefore, it was necessary to replace the entire terminal crimping device every time the type of terminal was changed.

However, in recent years, it is necessary to change the type of terminal (terminal band) frequently due to the diversification of terminal types and the demand for high-mix low-volume production. A possible pressure unit is provided. The pressurizing unit includes a pressurizing unit connected to a ram of a press device for caulking the terminal to the covered electric wire, and the pressurizing unit includes a wire crimper for caulking a wire barrel formed on the terminal, It was equipped with an insulation crimper for caulking the insulation barrel and a holder for carrying these integrally.
And this pressurization unit was comprised so that attachment or detachment was possible with respect to the shank fixed to the ram.

In the above configuration, since the pressurizing unit is configured to be detachable from the shank and the pressurizing member such as the crimper is replaced, the crimp height adjusting mechanism provided in the shank is also different from the pressurizing unit. It was in a separated form. For this reason, it is necessary to reset the crimp height after replacing the pressure unit, and there is a problem that the adjustment work after replacing the pressure unit takes time. To solve this problem, The thing shown by patent document 2 (Unexamined-Japanese-Patent No. 2001-297848) is disclosed for the purpose of providing the terminal crimping apparatus which can perform the setting operation | work after replacement | exchange easily and rapidly and precisely.

The present invention includes a press mechanism for crimping a terminal to a covered electric wire, and a terminal feeding mechanism for feeding a terminal band to the press mechanism. The press mechanism includes a main body unit assembled to a press device, In a terminal crimping apparatus that includes a shank that is guided by a main body so as to be movable up and down, and that is connected to a ram of the press device, and a pressure unit that is driven by the shank, the shank is integrated with the pressure unit This is a terminal crimping device characterized in that a shank module that can be exchanged is constructed and the shank module is detachably connected to the main body and the ram.

As a result, the adjustment of the crimp height can be set in advance for each pressure unit, and the crimp height can be adjusted more precisely even after the pressure unit is replaced.

Japanese Patent Laid-Open No. 10-50450 (FIG. 1)

JP 2001-297848 (FIG. 2)

However, in the conventional example, the adjustment work after replacing the pressure unit can be simplified, but in the case of high-mix low-volume production corresponding to various wire thicknesses and diversification of terminal types. When it is necessary to change the type of terminal (terminal band) frequently, replacement of the pressure unit itself leads to a decrease in work efficiency, and there is a limit to improvement in production efficiency.
In other words, when changing the type of wire or changing the type of terminal, it is necessary to replace the pressure unit with a dedicated pressure unit each time the change is made. There was a problem to do.

Also, in crimping the crimping terminal to the wire, the crimping device may be activated by accidentally touching the operation switch of the crimping device during unit replacement. there were.

Therefore, the object of the present invention is to attach various dedicated crimping dies to their dedicated holders and quickly switch between these holders to reduce the replacement time of the crimping dies due to the types of wires and terminals. The purpose is to provide a device that can be shortened and improve the work efficiency in high-mix low-volume production. It is another object of the present invention to provide a crimping and caulking device that does not accidentally touch the operation switch of the device when a dedicated die is switched.

In order to achieve the above object, in the first problem solving means of the present invention,
In crimping terminal crimping equipment for vinyl insulated wires,
A crimping die comprising an upper die and a lower die for crimping a wire having a predetermined diameter and a crimping terminal corresponding to the wire;
The crimping die is held with the lower die attached and fixed by a fixing means, and the upper die is held at a predetermined distance from the lower die and pressed, and the upper die is pressed in the direction of the lower die. A holding block which is provided with a movable means for moving and mounted and held;
A rotary table that rotates by holding the holding block in four directions and dividing it by 90 degrees;
A pulling means provided to pull the rotary table to a predetermined position when the rotary table is rotated to select a crimping die;
And an operation button that operates a crimping crimping device that is arranged to be hidden behind the rotary table when the rotary table is pulled out, and various holding dies with different sizes are attached to each holding block. A crimping terminal crimping device characterized in that a crimping die is selected and selected by pulling and rotating the rotary table to a predetermined position by the pulling means, and crimping a crimping terminal corresponding to a predetermined wire. Is provided.
As a result, it is possible to shorten the time required for replacing the crimping dies (setup change), and to efficiently produce a variety of products in small quantities. Further, since the operation button of the device is hidden by the rotary table during the setup change, there is no possibility of accidentally touching the operation button of the device, and it is possible to provide a crimp terminal crimping device in which the device does not operate carelessly.

In the second problem solving means,
In crimping terminal crimping equipment for vinyl insulated wires,
A crimping die comprising an upper die and a lower die for crimping a wire having a predetermined diameter and a crimping terminal corresponding to the wire;
The crimping die is held with the lower die mounted and fixed by a fixing means, and the upper die is held at a predetermined distance from the lower die and pressed, and the upper die is pressed in the direction of the lower die. A holding block which is provided with a movable means for moving and mounted and held;
A rotary table that rotates by holding the holding block in four directions and dividing it by 90 degrees;
A pulling means provided to pull the rotary table to a predetermined position when the rotary table is rotated to select a crimping die;
An operation button for operating a crimping caulking device arranged to be hidden behind the rotary table when the rotary table is pulled out;
A table for receiving a predetermined wire;
A desktop hydraulic press for pressing the crimping die from above ,
Various crimping dies of different sizes are attached to each holding block, and the rotary table provided with the holding block is pulled out to a predetermined position by the pulling means and rotated to select and select the crimping dies.
The wire is supported by the table toward the crimping die located at the forefront,
A crimp terminal crimping device of a first problem solving means is provided, characterized in that a crimp terminal corresponding to a predetermined electric wire is crimped and crimped .
Thereby, a predetermined electric wire can be easily received, and a crimping terminal crimping device can be provided more simply by providing a desktop hydraulic press.

According to the first and second problem solving means,
Various dedicated crimping dies are installed in their dedicated holders, and switching between these holders shortens the replacement time for crimping dies due to different types of wires and terminals, thereby improving work efficiency in high-mix low-volume production. An apparatus that can be improved can be provided.
Further, it is possible to provide a crimping and caulking device that does not accidentally touch the operation switch of the device when the dedicated die is switched.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
This embodiment is particularly suitable for crimping a crimping terminal suitable for a connecting wire connecting the main switch and the current limiter in a residential distribution board provided with a main switch and a current limiter. The present invention relates to a terminal caulking device. The main switch and current limiter have various ratings, and the diameter of the wire used varies depending on the rating. In other words, it is necessary to attach crimp terminals suitable for various wire diameters by crimping.

FIG. 1 is a view showing a crimp terminal crimping apparatus showing a first embodiment of the present invention.
In FIG. 1, 100 is a desktop hydraulic press. The table-top hydraulic press 100 is operated by an operation switch, and the head unit 101 is moved downward in the figure by hydraulic pressure to press an object below the head unit. The head unit 101 is movable up and down.

A holding block 200 having a crimping die is provided below the head portion 101. The holding block 200 holds an upper die 201 and a lower die 202 with a frame 204. The lower die 202 is fixed to the holding block by fixing means 203. The fixing means 203 sandwiches the die and fixes its position so that the lower die 202 does not move.

The frame 204 is provided with a shaft 205 that passes through the frame and slides up and down, and an upper die 201 is attached to one end of the shaft 205. A winding spring 206 is penetrated through the shaft 205 and is provided so as to push the shaft upward when the desktop hydraulic press 100 is not pressurized.

As described above, the operation of the desktop hydraulic press 100 causes the head portion 101 to move down, the head portion 101 presses down the shaft 205, and the upper die 201 and the lower die 202 are engaged and pressed.

In the present embodiment, four holding blocks 200 are provided, and each of the holding blocks 200 is fixedly attached to the rotating plate 300 at an angle of 90 degrees. That is, holding blocks are provided on four sides of the rotating plate 300.

A bolster plate 105 is provided on the base of the tabletop hydraulic press 100, and a holding plate 301 for holding the rotating plate 300 is provided on the bolster plate 105. The holding plate 301 is provided with a rotary bearing hole 303 into which the rotary shaft 302 of the rotary plate is fitted, and the rotary plate 300 rotates around the rotary shaft 302.

Crimping dies having different sizes are attached to the four holding blocks. In this embodiment, crimping dies suitable for four types of electric wires and crimp terminals that are frequently used and whose nominal cross-sectional areas (thicknesses) are 8, 14, 22, and 38 square millimeters are used in residential distribution boards. Wearing. As a result, when crimping suitable crimping terminals for various insulated vinyl wires with different diameters, a variety of products can be produced in small quantities by rotating the rotating plate and selecting a crimping die with the appropriate size. It is possible to perform the work without reducing the work efficiency as much as possible.

FIG. 2 shows a view of the rotating plate as viewed from above. Reference numerals 202 a to 202 d denote various lower dies, which are provided on four sides of the rotating plate 300. Reference numeral 104 denotes a stopper for fixing the rotation of the rotary plate 300. A hole into which the stopper is inserted is provided at a predetermined position on the side surface of the rotating plate. When a crimping die is selected, the stopper 104 is pulled out from one end hole and the rotating plate 300 is rotated to a predetermined position. Then, the rotation of the rotating plate 300 is fixed by inserting a stopper into the hole again.

Reference numeral 103 denotes a drawer groove, and the holding plate 301 can be pulled out along the groove. The rotation plate 300 can be rotated when it is pulled out along the groove. In addition, two operation buttons 102 of the desktop hydraulic press 100 are provided in front of the holding plate, and the desktop hydraulic press 100 is operated when the two operation buttons are pressed simultaneously. . This is to prevent accidents caused by unexpected operation of the desktop hydraulic press when the operation button is accidentally touched or hit.

When the holding plate 301 is pulled out along the drawing groove 103, the holding plate covers the upper side of the operation button due to the positional relationship between the groove 103, the holding plate 301, and the operation button 102. Thus, the operation button 102 is hidden. That is, the operation button 102 is provided on the back side of the rotating plate 300. Accordingly, in addition to the operation when the two operation buttons described above are pressed simultaneously, it is possible to prevent the operation button from being erroneously pressed during the rotation of the rotating plate.

401 is an electric wire receiving table for receiving an insulated vinyl electric wire, and 400 is an insulated vinyl electric wire. As shown in the figure, the wire receiving table 401 is arranged so that the wire can be pointed toward the crimping die located at the forefront. Depending on the various wires and crimping terminals used, the rotating plate is rotated, and a suitable crimping die is selected (switched), and the desktop hydraulic press is operated to perform crimping to the wires in a short time. It is possible.

As described above, since the crimping terminal crimping device is configured, various types of dedicated crimping dies are attached to the dedicated holders, and the crimping dies can be replaced due to differences in the types of wires and terminals by quickly switching between these holders. It is possible to provide an apparatus capable of shortening the time and improving the work efficiency in the high-mix low-volume production. Further, it is possible to provide a crimping and caulking device that does not accidentally touch the operation switch of the device when the dedicated die is switched.

  In the present invention, the crimping dies corresponding to the four types of electric wires having the nominal cross-sectional area (thickness) of the insulated vinyl wire are 8, 14, 22, and 38 square millimeters are used. By doing so, it can also be used for crimping other types of electric wires.

It is a schematic block diagram of a crimping crimping apparatus. It is the figure which faced the rotation plate of the crimping crimping apparatus. It is the figure which showed the conventional example.

Explanation of symbols

100 Desktop Hydraulic Press 101 Bolster Plate 102 Actuation Button 103 Drawer Groove 104 Stopper 200 Holding Block 201 Upper Die 202 Lower Die 202a Lower Die 202b Lower Die 202c Lower Die 202d Lower Die 203 Fixing Means 204 Frame 205 Shaft 206 Spring 300 Rotating plate 301 Holding plate 302 Rotating shaft 303 Rotating bearing hole 400 Insulated vinyl electric wire 401 Electric wire receiving table

Claims (2)

In crimping terminal crimping equipment for vinyl insulated wires,
A crimping die comprising an upper die and a lower die for crimping a wire having a predetermined diameter and a crimping terminal corresponding to the wire;
The crimping die is held with the lower die mounted and fixed by a fixing means, and the upper die is held at a predetermined distance from the lower die and pressed, and the upper die is pressed in the direction of the lower die. A holding block which is provided with a movable means for moving and mounted and held;
A rotary table that rotates by holding the holding block in four directions and dividing it by 90 degrees;
A pulling means provided to pull the rotary table to a predetermined position when the rotary table is rotated to select a crimping die;
And actuator button for actuating the placed crimped crimping apparatus so that hidden on the back side of the rotary table when pulling out the rotary table, the provided,
Various crimping dies of different sizes are mounted on each holding block, and the rotary table provided with the holding block is pulled out to a predetermined position by the pulling means and rotated to select and select a predetermined die. Crimping terminal crimping device characterized by crimping a crimping terminal corresponding to the wire of the cable.
In crimping terminal crimping equipment for vinyl insulated wires,
A crimping die comprising an upper die and a lower die for crimping a wire having a predetermined diameter and a crimping terminal corresponding to the wire;
The crimping die is held with the lower die mounted and fixed by a fixing means, and the upper die is held at a predetermined distance from the lower die and pressed, and the upper die is pressed in the direction of the lower die. A holding block which is provided with a movable means for moving and mounted and held;
A rotary table that rotates by holding the holding block in four directions and dividing it by 90 degrees;
A pulling means provided to pull the rotary table to a predetermined position when the rotary table is rotated to select a crimping die;
An operation button for operating a crimping caulking device arranged to be hidden behind the rotary table when the rotary table is pulled out;
A table for receiving a predetermined wire;
A desktop hydraulic press for pressing the crimping die from above ,
Various crimping dies of different sizes are attached to each holding block, and the rotary table provided with the holding block is pulled out to a predetermined position by the pulling means and rotated to select and select the crimping dies.
The wire is supported by the table toward the crimping die located at the forefront,
A crimp terminal crimping device, wherein a crimp terminal corresponding to a predetermined electric wire is crimped.

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