JPH0914211A - Hydraulic compressor - Google Patents

Abstract

PURPOSE: To provide a hydraulic compressor having a compression register, which can be extremely easily formed without machining a hydraulic cylinder itself, therefore, strength may not be affected. CONSTITUTION: The flange 9 of a dies gate 8 is placed on the upper surface of a supporting wall 3 during an incompressible period, and a jaw 10 is engaged with the jaw 4 of the supporting wall 3. The dies gate 8 is pushed up during a compressible period so as to form a little clearance between the gate 8 and the upper surface of the supporting wall 3. A conductive pin 12 is attached to the flange 9 of the dies gate 8 by being electrically insulated, and shortly projected to the lower surface of the flange 9. A power supply 14 and a counter 15 are attached to the dies gate 8, and a circuit for the power supply 14 - the dies gate 8 - the supporting wall 3 - the conductive pin 12 - the counter 15 - the power supply 14 is formed during the incompressible period, and an electric signal is transmitted to the counter 15 every time the circuit is opened by opening between the supporting wall 3 and the conductive pin 12 during the compressible period, so that the frequency of compression action is displayed on the counter 15. The frequency of the compression action is thus integrated and displayed so as to previously prevent fatigue failure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydraulic compressor used for work such as compression connection of electric wires, and in particular, the number of compression operations can be integrated and displayed to prevent fatigue failure of the device. It relates to a hydraulic compressor.

[0002]

2. Description of the Related Art Conventionally, a hydraulic tool with a power meter has been known for the purpose of cumulatively displaying the number of times of compression operations and preventing fatigue damage of the device (for example, actual cutting flat 7-22.
488). In this hydraulic tool, an oil pressure detection type switch device that communicates with an oil chamber in a hydraulic cylinder is used as a frequency detection means for detecting that a prescribed hydraulic pressure has been reached.

[0003]

In the conventional hydraulic pressure detection type switching device in the above-mentioned hydraulic tool with a power meter, the important hydraulic cylinder itself, which requires the greatest strength in the device, must be processed. However, the strength may be adversely affected, and high hydraulic pressure is applied, so that it is necessary to take every possible measure against oil leakage, which causes a problem that the device becomes complicated and expensive. The present invention does not process the hydraulic cylinder itself, thus without affecting its strength,
An object of the present invention is to provide a hydraulic compressor with a compression degree meter that can be configured extremely easily.

[0004]

According to the present invention, in order to solve the above-mentioned problems, the die gate 8 is engaged with the collar portion 9 on the upper surface of the support wall 3 and the lower surface of the jaw portion 4 of the support wall 3. The jaw portion 10 is provided so that the die gate 8 is pushed up by the movable die 6 in the compressed state to form a predetermined small gap between the die gate 8 and the upper surface of the support wall 3, and the collar portion of the die gate 8 is provided. 9, electrically conductive and electrically conductive pin 12 is attached, the tip of which is shortly projected from the lower surface of the collar portion 9, and the die gate 8 has a power source battery 14 and the number of received electrical signals. Counter 15 that accumulates and displays
, And one electrode of the power supply battery 14 is connected to the conductive pin 12 via the counter 15, and the other electrode is grounded to the support wall 3 via the die gate 8 so that the power supply 14 is not compressed. -Dice gate 8-Support wall 3-conductive pin 12-Counter 15-Power supply 14 circuit is formed, and in the compressed state, an electric signal is sent to the counter 15 every time the support wall 3-conductive pin 12 is opened to open the circuit. To send
The hydraulic compressor 1 is configured so that the number of compression operations is displayed on the counter 15.

[0005]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view of the hydraulic compressor, and FIG. 2 is an enlarged sectional view of a part of the hydraulic compressor.

1 and 2, the hydraulic compressor 1 is equipped with a hydraulic cylinder 2 in the lower part. A pair of left and right support walls 3, 3 are provided so that a part of their side walls integrally extends upward from the hydraulic cylinder 2. Support wall 3
Are provided with jaw parts 4 projecting inwardly at their upper portions.

In the hydraulic cylinder 2, a ram 5 that can be raised and lowered is freely installed.
Is inserted. A movable die 6 is mounted on the ram 5, and can be raised and lowered by being guided by the support wall 3.

The fixed die 7 is located above the movable die 6 and is held between the pair of support walls 3. In the uncompressed state, the fixed die 7 is arranged above the movable die 6 with a predetermined space.

The die gate 8 is located above the fixed die 7 and supports the fixed die 7. The collar 9 is placed on the upper surface of the support wall 3 and the jaw 4 of the support wall 3.
It is attached to the support wall 3 by means of a jaw 10 that engages the lower surface of the.

In the hydraulic compressor 1, the movable die 6 is hydraulically moved up to compress the compressed object while the compressed object is interposed between the movable die 6 and the fixed die 7. .

The lower surface of the collar portion 9 of the die gate 8 is in contact with the upper surface of the support wall 3 in the uncompressed state, but in the compressed state, it is pushed up by the movable die 6 together with the fixed die 7 and the upper surface of the support wall 3. A gap is formed between the chin portion 4 and the chin portion 10 so as to be separated from the chin portion 10. A conductive pin 12 penetrates and is fixed to the collar portion 9 via an insulating cylinder 11. The lower end of the conductive pin 12 slightly projects from the lower surface of the collar portion 9 and comes into contact with the upper surface of the support wall 3 in the non-compressed state to obtain electrical conduction.

A recess 13 is formed at the center of the upper portion of the die gate 8.
Is provided, and the power supply battery 14 and the counter 1 are provided in the recess 13.
And 5 are retained. One electrode of the battery 20 is connected to the conductive pin 12 via the counter 21, and the other electrode is grounded to the support wall 3 via the die gate 8. Therefore, when not compressed, the battery 14-counter 15-
A circuit of the conductive pin 12-support wall 3-dice gate 8-battery 14 is formed. The counter 15 receives a pulse signal when the conductive pin 12 separates from the support wall 3, integrates the number, and displays the result on the upper display unit 15a.

When compressing an object to be compressed such as a sleeve for connecting a power transmission line using the hydraulic compressor 1, the movable die 6 is lifted by hydraulic pressure to compress the object to be compressed with the fixed die 7. However, at this time, the movable die 6, the fixed die 7,
The die gate 8 is pushed up, and the conductive pin 12 is separated from the support wall 3. The counter 21 receives the pulse signal at this time, counts it as the number of compression operations, and displays it on the display unit 1.
5a. When the compression operation is completed and the movable die 6 is lowered, the die gate 8 is also lowered at the same time, the conductive pin 12 comes into contact with the upper surface of the support wall 3, and the battery 14-counter 15-conductive pin 12-support wall 3 again. -Dice Gate 8-The circuit of the battery 14 is formed.

[0015]

As described above, in the present invention, the die gate 8 is provided with the collar portion 9 that rides on the upper surface of the support wall 3 and the jaw portion 10 that engages with the lower surface of the jaw portion 4 of the support wall 3. In the provided and compressed state, the die gate 8 is pushed up by the movable die 6 so that a predetermined small gap is formed between the die gate 8 and the upper surface of the support wall 3, and the collar portion 9 of the die gate 8 is
The electrically conductive pin 12 is attached and the tip of the pin 12 is made to protrude from the lower surface of the collar portion 9 for a short time.
A power supply battery 14 and a counter 15 for integrating and displaying the number of received electric signals are attached to the power supply battery 14, and one electrode of the power supply battery 14 has a conductive pin 1 through the counter 15.
2, the other electrode is grounded to the support wall 3 through the die gate 8, and in the uncompressed state, the power supply 14-the die gate 8-the support wall 3-the conductive pin 12-the counter 15-.
The power supply 14 forms a circuit, and in the compressed state the support wall 3
-Each time the conductive pins 12 are opened to open the circuit, an electric signal is sent to the counter 15 to display the number of compression operations on the counter 15, so that the hydraulic compressor 1 is configured. Therefore, the hydraulic cylinder 2 itself is processed. Therefore, there is an effect that it is possible to provide a hydraulic compressor with a compression degree meter very easily without performing the above, and thus without affecting the strength.

[Brief description of the drawings]

FIG. 1 is a sectional view of a hydraulic compressor.

FIG. 2 is an enlarged sectional view of a part of the hydraulic compressor.

[Explanation of symbols]

 1 Hydraulic Compressor 2 Hydraulic Cylinder 3 Support Wall 4 Jaw Part 5 Ram 6 Movable Die 7 Fixed Die 8 Dice Gate 9 Collar Part 10 Jaw Part 11 Insulation Cylinder 12 Conductive Pin 13 Recess 14 Power Battery 15 Counter

Continuation of the front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display location H01R 43/048 6901-5B H01R 43/048 Z

Claims (1)

[Claims] 1. A hydraulic cylinder having a vertically moving ram inserted therein, a movable die mounted on the ram, a pair of support walls extending upward from the hydraulic cylinder, each having an upper jaw and a movable jaw. A fixed die located above the die and held between the pair of support walls; and a die gate attached to the support wall for supporting the fixed die located above the fixed die. In the hydraulic compressor, wherein the object to be compressed is interposed between the movable die and the fixed die and the object to be compressed is compressed by the rise of the movable die, the die gate is a collar part that rides on the upper surface of the support wall. And a jaw portion that engages with the lower surface of the jaw portion of the supporting wall, and a predetermined small gap is formed between the upper surface of the supporting wall and the collar portion by being pushed up by the movable die in the compressed state. So da The relative position between the chair gate and the support wall is determined, and a tip of the die gate is protruded from the contact surface with the upper surface of the support wall to be shorter than the gap and electrically insulated from the collar portion. Then, a conductive pin is attached, a power source battery and a counter for accumulating and displaying the number of received electric signals are attached to the die gate, and one electrode of the power source battery is The counter electrode is connected to the conductive pin via a counter, and the other electrode is grounded to the supporting wall via the dice gate. In the non-compressed state, a circuit of power source-dice gate-supporting wall-conducting pin-counter-power source is formed. In the compressed state, an electric signal is sent to the counter every time the circuit is opened by opening the support wall and the conductive pin.