JPH0629909Y2 - Compressor of sleeve for wire connection - Google Patents

Description

The present invention relates to a device for compressing a metal sleeve for connecting electric wires, and more particularly to a device for compressing a metal sleeve for connecting electric wires, which includes a pair of hydraulic heads horizontally opposed to each other. In a sleeve compression device for electric wire connection, in which a sleeve is simultaneously compressed horizontally from both sides by a die attached to a hydraulic head, which is characterized by a structure for assembling the hydraulic head and an attaching / detaching operation of a frame body for holding the hydraulic head. Is.

(Prior Art) Conventionally, as a compression device for a sleeve for connecting electric wires, for example, one disclosed in Japanese Patent Laid-Open No. 63-224171 is known. In this compression device, a pair of opposing electric wire supporting members for supporting electric wires fitted with sleeves are provided on a gantry, and a hydraulic compressor is provided so as to be able to reciprocate between the pair of electric wire supporting members. This compressor is
For example, with the ends of the two electric wires to be connected inserted into the sleeve from both sides, both electric wires are held by the electric wire support members on both sides of the sleeve, and the sleeve is arranged between a pair of hydraulic heads of the hydraulic compressor. However, the compression operation is performed many times while the hydraulic compressor is sequentially moved in the extension direction of the sleeve. That is, the hydraulic compressor includes a pair of hydraulic heads arranged to face each other so as to horizontally compress the sleeve from both sides in a direction orthogonal to its axis, and these hydraulic heads include a lower frame for fixing a lower portion, It is held by a detachable upper frame having a pair of engaging holes into which the upper engaging protrusions of the respective hydraulic heads are fitted.

(Problems to be Solved by the Invention) In the conventional compression device for the sleeve for wire connection,
The upper frame needs to be removed from the hydraulic head in order to insert the electric wire between the pair of hydraulic heads. However, since this upper frame is relatively heavy, it is not easy to attach and detach,
In addition, it may be difficult to place it after removal.

Therefore, it is an object of the present invention to provide a compression device for a wire connection sleeve that is easy to attach and detach and does not suffer from a location after the detachment.

(Means for Solving the Problems) In the present invention, in order to solve the above-mentioned problems, a pair of opposing electric wire supporting means 2, 3 for supporting the electric wire W having the sleeve S mounted substantially horizontally on both sides in the axial direction thereof. And a hydraulic compressor 4 capable of moving along the axis of the sleeve S while repeating the operation of compression-release-movement between the pair of electric wire supporting means 2 and 3, provided on the gantry 1, and the hydraulic compressor 4 is provided with a pair of hydraulic heads 12, 12, which are in a direction orthogonal to the moving direction of the hydraulic compressor 4 so as to horizontally compress the sleeve S from both sides in the direction orthogonal to its axis. The hydraulic head 12
Includes a lower frame 10 for fixing the lower part thereof and a hydraulic head 12
And a detachable upper frame 11 that keeps them open from one another and horizontally holds them, and the lower frame 10 is provided with a roller 9 that rolls on the gantry 1 so as to be movable on the gantry. ,further,
The lower frame 10 is positioned beside one of the hydraulic heads 12 to pivotally attach the lower end of the support link 20 to the side so that the support link 20 can swing to the side. A stopper 21 for limiting is provided, an upper end of a suspension arm 22 is pivotally attached to an upper end of the support link 20, a lower end of the suspension arm 22 is pivotally attached to one end side of the upper frame 11, and one head 12 is provided. An engaging portion 23 for placing and locking the other end of the upper frame 11 is provided on the upper part of the.

(Operation) A sleeve compression operation using the compression device of the present invention is performed as follows. The upper frame 11 is detached from the hydraulic head 12, and two electric wires W are inserted into both ends of the sleeve S, and the electric wires W are inserted into the pair of dies 6, 6 of the hydraulic head 12, 12.
The electric wire W is supported by the electric wire supporting means 2 and 3 on both sides of the sleeve S. Then, the upper frame 11 is mounted on the hydraulic head 12 to prevent the heads 12 and 12 from opening. Next, the hydraulic compressor 4 is sequentially moved along the axis of the sleeve S while repeatedly performing compression-release-movement operations to perform a predetermined length of compression operation. After the compression work is completed, the upper frame 11 is again removed from the hydraulic head 12 and the electric wire W is taken out from between the hydraulic heads 12 and 12. Since the upper frame 11 needs to have a rigidity that can withstand the pressure of the hydraulic head 12, it is generally considerably heavy. However, the upper frame 11 has a suspension arm 22 on one end side, and the support link 2
Since it is hung at 0, if the other end side is lifted and pushed to the one end side, the support link 20 swings sideways and carries the upper frame 11, so that this can be easily moved to the side of the hydraulic head 12. Can be shifted. When the upper frame 11 is slid to a predetermined position, the support link 20 is stopped by the stopper 21, so if the upper frame 11 is lowered there, the upper frame 11 is locked by the locking portion 23 on the upper side of one hydraulic head 12 and placed. Can be placed. Therefore, it is not necessary to consider the location of the upper frame 11 removed from the hydraulic head 12.

(Embodiment) An embodiment of the present invention is shown in FIGS. FIG. 1 is a plan view of the compressor, FIG. 2 is a front view of the compressor, FIG. 3 is an exploded perspective view of the hydraulic compressor, FIG. 4 is a front view of the hydraulic compressor, and FIG. 5 is a die and a sensor. FIG.

The sleeve compression apparatus of the illustrated embodiment has a portable mount 1 equipped with casters, and a pair of wire support means 2 and 3 provided on the mount 1 so as to face each other to support the wire W having the sleeve S mounted thereon. And a hydraulic compressor 4 provided on the gantry 1 so as to be able to reciprocate between the pair of electric wire supporting means 2 and 3.

As shown in FIG. 3, the hydraulic compressor 4 includes a pair of hydraulic heads 12, between a lower frame 10 provided with rollers 9 rolling on the gantry 1 and an upper frame 11 having substantially the same shape. Holds 12 That is, the upper and lower frames 10 and 11 are provided with rectangular engaging holes 10a and 11a, respectively, and on the other hand, prismatic engaging projections 12a and 12a are provided above and below each head 12, respectively. The engaging protrusions 12a are fitted into the engaging holes 10a and 11a of the upper and lower frames 10 and 11, respectively, so that the heads 12 and 12 are held so as not to open. As shown in FIGS. 1 and 2, a nut 8 is fixed to the lower portion of the lower frame 10, and the nut 8 is screwed onto a screw rod 7 horizontally installed on the pedestal 1. . The screw rod 7 can be rotated by the motor 5. Therefore, the hydraulic compressor 4
Can be reciprocated along the screw rod 7 by the forward and reverse rotations of the drive motor 5.

The ram of each head 12 is provided with a die receiver 12b to which the die 6 can be attached and detached. That is, the die receiver 12b has a U-shaped cross section, and the pair of opposed engagement protrusions 12c can be fitted into the engagement grooves 6c of the die 6 to insert the die 6 from above. It is like this. Then, each compression head 12 can push out the die 6 by the oil supply from the hydraulic pump P to perform the compression operation.

As shown in FIG. 5, one die 6 is provided with an identification portion 6a extending downward, and the identification portion 6a is provided with an identification hole 6b. Correspondingly, when the die 6 is mounted on the head 12, the photo sensor 17 which receives the identification portion 6a of the die 6 and detects the type of the die 6 by the arrangement of the holes 6b is arranged on the lower frame 10.
Is provided. Then, the type of the die 6 is identified by the arrangement combination of these holes 6b, and the automatic compression operation suitable for this can be performed. 6d is a handle for attaching and detaching the die 6.

Control device with a built-in microcomputer (not shown)
Is provided separately from the gantry 1 and receives a signal from the sensor 17 and is stored in advance in the sleeve S corresponding to the die 6.
The hydraulic control valve 16 and the drive motor 5 are controlled in accordance with the compression pitch and the number of times of compression peculiar to the.

The lower frame 10 has a support link 2 for supporting the upper frame 11.
The lower end of 0 can swing sideways so that the shaft 2
It is pivotally connected by 0a. This support link 20
It is arranged so as to be located on the side of one hydraulic head 12. A stopper 21 is provided on the lower frame 10 to limit the lateral swing angle of the support link 20. The upper end of the suspension arm 22 is pivotally attached to the upper end of the support link 20 by a shaft 20b, and the lower end of the suspension arm 22 is attached to one end of the upper frame 11 by a pin 22a.
Is pivoted by. Therefore, the upper frame 11 can be detached from the head 12 and moved laterally with a relatively small force while supporting a part of the weight of the upper frame 11 by the suspension arm 22 and the support link 20. On the upper part of the head 12 on one side of the support link 20, a locking portion 23 is provided to project and lock the other end side when the upper frame 11 is removed from the head 12. In order to move the upper frame 11 with the minimum force, the support link 20 and the suspension arm 22 are placed on the head 12 with the upper frame 11 removed from the head 12. Are dimensioned so that they are almost horizontal.

Then, in the case of compressing and connecting the detention sleeve S to the electric wire W using the compression device of this embodiment, first, the upper frame 11 of the hydraulic compressor 4 is removed to open the heads 12 and 12.
At this time, hold the handle 11b of the upper frame 11
Push to the other side. When the upper frame 11 is pushed, the support link 20 rotates outward, and one end side of the upper frame 11 is lifted by the hanging arm 22 and moved laterally. When the support link 20 rotates by a predetermined angle, it comes into contact with the stopper 21 and stops. Therefore, at this position, the other end side of the upper frame 11 is
It is hooked on and held by the locking portion 23 on one hydraulic head 12. During this time, part of the weight of the upper frame 11 is the support link 20.
Since it is supported by the upper frame 11, the upper frame 11 can be moved with a comparatively small force, and there is no possibility of dropping the upper frame 11 to cause an injury accident. Then, the die 6 is selected according to the type of the sleeve S to be compressed, and this is mounted on the head 12.
Next, with the sleeve S attached to the end of the electric wire W,
One end of the sleeve S is connected to the bracket of the electric wire supporting means 3, and the electric wire W is held by the electric wire supporting means 2. And this time, contrary to the previous one, move the upper frame 11,
Fit on the heads 12 and 12, and set the hydraulic compressor 4. Then, the hydraulic pump P is operated, the power switch of the control device is turned on, and the hydraulic compressor 4 is moved to be arranged on one end side of the sleeve S.

The sensor 17 detects the type of the die 6 from the identification portion 6a of the die 6 mounted on the hydraulic compressor 4 and sends a signal to the control device. Based on the signal from the sensor 17, the control device controls the drive motor 5 and the control valve 16 according to the compression pitch and the number of compressions stored in advance corresponding to the sleeve S corresponding to the die 6, and starts the compression operation. To do.

Then, when one compression operation is completed and the hydraulic pressure reaches a predetermined value, a signal is issued from the pressure switch, and a return operation signal is issued to the control valve 16 via the control device. Dice 6
When the hydraulic pressure in the head 12 reaches a predetermined value after the completion of the return operation, a signal is issued from the pressure switch, a rotation signal is issued to the drive motor 5 via the control device, and the motor 5 rotates a predetermined number of times. The hydraulic compressor 4 is moved by a predetermined distance. In this way, the same operation is repeated a predetermined number of times to complete the compression connection of the sleeve S.

The present invention is not limited to the illustrated embodiment, but can be applied to, for example, a hydraulic compressor that is manually moved, and the subject of compression connection is not limited to the detention sleeve.

(Effect of the Invention) As described above, in the present invention, the pair of electric wire supporting means 2 and 3 for supporting the electric wire W having the sleeve S mounted substantially horizontally on both sides in the axial direction thereof, and the pair of electric wire supporting means. A hydraulic compressor 4 capable of moving along the axis of the sleeve S while repeating compression-release-movement operations between the means 2 and 3 is provided on the gantry 1, and the hydraulic compressor 4 includes a pair of hydraulic pressures. Heads 12 and 12 are provided, and these hydraulic heads 12 are arranged in a direction orthogonal to the moving direction of the hydraulic compressor 4 in order to horizontally compress the sleeve S from both sides in the direction orthogonal to the axis thereof. Reference numeral 12 holds horizontally between a lower frame 10 for fixing the lower portion thereof and a detachable upper frame 11 for preventing the hydraulic heads 12 from being opened from each other. Roller 9 rolling on 1 Is provided so as to be freely movable on the gantry. Further, the lower frame 10 is positioned on the side of one hydraulic head 12, and the lower end of the support link 20 is pivotally attached to the side, and A stopper 21 for limiting the lateral swinging angle of the support link 20 is provided, the upper end of the suspension arm 22 is pivotally attached to the upper end of the support link 20, and the lower end of the suspension arm 22 is fixed to the upper frame 11. Since the locking portion 23 for pivotally attaching to one end side and for locking the other end side of the upper frame 11 placed and locked on the upper part of the one head 12, the upper frame 11 can be easily attached and detached. Moreover, the work can proceed safely, and the upper frame 1
It is possible to provide a compression device for a sleeve for electric wire connection that does not cause any trouble in the place where the device 1 is removed.

[Brief description of drawings]

The drawings show one embodiment of the present invention. FIG. 1 is a plan view of a compression device, FIG. 2 is a front view of the compression device, FIG. 3 is an exploded perspective view of a hydraulic compressor, and FIG. A front view of the compressor and FIG. 5 are perspective views of a die and a sensor. 1 ... Frame, 2, 3 ... Electric wire supporting means, 4 ... Hydraulic compressor, 5 ... Motor, 6 ... Die, 7 ... Screw rod, 8 ...
... nuts, 10 ... lower frame, 10a ... engaging holes, 11 ...
Upper frame, 11a ... Engagement hole, 12 ... Hydraulic head, 12a
...... Lower engaging protrusion, 12b ...... Upper engaging protrusion, 20 ......
Support link, 21 ... Stopper, 22 ... Suspension arm,
23 ... Locking part, S ... Sleeve, W ... Electric wire.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Masato Mitsuyama, No. 810, Nakatate, Tamabo-machi, Nakakoma-gun, Yamanashi Sanwa Tekki Co., Ltd. (72) Creator: Tadatoshi Osato, 810, Nakatate, Tamabo-machi, Nakakoma-gun, Yamanashi Kofu Factory Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A pair of opposed electric wire supporting means for supporting an electric wire fitted with a sleeve substantially horizontally on both sides in an axial direction, and an axis line of the sleeve while repeating compression-release-movement operations between the pair of electric wire supporting means. In a compression connecting device for a sleeve, in which a hydraulic compressor movable along a frame is provided on a frame, the hydraulic compressors are arranged to face each other so as to horizontally compress the sleeve from both sides in a direction orthogonal to its axis. A pair of hydraulic heads, which are horizontally opposed to each other by a lower frame that fixes the lower part of the hydraulic head and a removable upper frame that prevents the hydraulic heads from opening between them. The lower frame is held and is movable on the gantry by including rollers that roll on the gantry. Further, the lower frame is positioned on the side of one of the hydraulic heads and has a support link of The end is pivotally attached to the side, and a stopper is provided to limit the swinging angle of the support link to the side. The upper end of the support link is pivotally attached to the upper end of the suspension arm. The lower end of the suspension arm is pivotally attached to one end side of the upper frame, and the upper part of one head is provided with a locking portion for placing and locking the other end side of the upper frame. A compression device for a sleeve for connecting electric wires, which is characterized in that