Method of operating a hydrodynamic compression tool and hydrodynamic compression tool

Abstract

A hydrodynamic compression tool comprises a motor which actuates a hydrodynamic group suitable to increase the pressure of a hydraulic fluid acting on an actuation piston connected to jaws, an electronic control system connected to the electric motor and to a user operating member for the actuation of the electric motor. An identification detector in connection with the control circuit detects an identification characteristic of the jaws or inserts housed in the jaws or of an object to be compressed or cut.

1 . A hydrodynamic compression or cutting tool, comprising:
 an electric motor that can be powered by an electric power source,   a hydrodynamic unit actuatable by the electric motor and suitable to carry out, in response to the movement of the motor, a pressure increase of a hydraulic liquid acting on an actuating piston so as to displace the actuating piston,   two jaws connected to be movable to one another, at least one movable jaw of which is connected to the actuating piston so that, in response to the displacement of the actuating piston, the jaws perform a relative movement between an open position and a closed position to carry out the compression or cut,   an electronic control system connected to the electric motor and to a user actuation member for actuating the electric motor,   
       comprising an identification detector in connection with the control circuit and suitable to detect an identification characteristic:
 of the jaws, or 
 of inserts received in the jaws, or 
 of an object to be compressed or cut. 
 
     
     
         2 . The tool according to  claim 1 , wherein the identification characteristic comprises a signal of a radio frequency identification tag (RFID-tag) of said object intended to be compressed or cut. 
     
     
         3 . The tool according to  claim 1 , wherein the identification characteristic comprises a signal of a radio frequency identification tag (RFID-tag) of the jaw. 
     
     
         4 . The tool according to  claim 1 , wherein the identification characteristic comprises a signal of a radio frequency identification tag (RFID-tag) of the insert received in the jaws. 
     
     
         5 . The tool according to  claim 1 , wherein the identification characteristic comprises an optical or chromatic feature of an optical interface of the jaw or of the insert or of the object intended to be compressed or cut. 
     
     
         6 . The tool according to  claim 1 , wherein the identification characteristic comprises a magnetic feature of the jaw or of the insert or of the object intended to be compressed or cut. 
     
     
         7 . The tool according to  claim 1 , wherein the identification characteristic comprises an electrical feature of an electric interface of the jaw or of the insert or of the object intended to be compressed or cut. 
     
     
         8 . The tool according to  claim 1 , wherein the identification characteristic comprises a shape feature of a mechanical interface of the jaw or of the insert or of the object intended to be compressed or cut. 
     
     
         9 . The tool according to  claim 1 , wherein the identification detector is an object identification detector and comprise a position sensor configured to detect a position of the actuation piston, wherein the electronic control circuit is in signal connection with the pressure sensor, with the position sensor and with the electric motor, and configured to identify an object engaged by the jaws depending on:
 the hydraulic fluid pressure detected by the pressure sensor and   the position of the actuation piston detected by the position sensor during actuation of the electric motor.   
     
     
         10 . A method for actuating a hydrodynamic compression tool, 
       wherein said tool comprises:
 an electric motor powered by an accumulator; 
 a hydrodynamic unit actuatable by the electric motor and suitable to carry out, in response to the movement of the motor, a pressure increase of a hydraulic liquid acting on an actuating piston so as to displace the actuating piston; 
 two jaws connected to be movable to one another, at least one movable jaw of which is connected to the actuating piston so that, in response to the displacement of the actuating piston, the jaws perform a relative movement between an open position and a closed position to carry out the compression or cut, 
 
       wherein said method comprises the steps of:
 bringing the jaws close to one another by actuating the electric motor, 
 identifying the type of object to be compressed or cut, 
 perform functions of the tool in dependency of the identified type of object. 
 
     
     
         11 . Method according to  claim 10 , comprising the step of detecting a signal of a radio frequency identification tag (RFID-tag) of said object intended to be compressed or cut. 
     
     
         12 . Method according to  claim 10 , wherein said object identification is carried out automatically. 
     
     
         13 . Method according to  claim 12 , wherein said object identification is carried out by means of the steps:
 identifying, on the basis of the monitored pressure, an engagement moment in which the jaws engage the object placed between them and in which the compression of the object commences,   detecting a compression starting position of the actuation piston at the moment of engagement,   identifying the object engaged by the jaws depending on the detected compression starting position.   
     
     
         14 . Method according to  claim 10 , comprising the step of switching off the electric motor depending on the type of object identified. 
     
     
         15 . System for compressing or cutting objects, comprising:
 a hydrodynamic compression or cutting tool comprising:   an electric motor that can be powered by an electric power source,   a hydrodynamic unit actuatable by the electric motor and suitable to carry out, in response to the movement of the motor, a pressure increase of a hydraulic liquid acting on an actuating piston so as to displace the actuating piston,   two jaws connected to be movable to one another, at least one movable jaw of which is connected to the actuating piston so that, in response to the displacement of the actuating piston, the jaws perform a relative movement between an open position and a closed position to carry out the compression or cut,   an electronic control system connected to the electric motor and to a user actuation member for actuating the electric motor,   
       comprising an identification detector in connection with the control circuit and suitable to detect an identification characteristic:
 of the jaws, or 
 of inserts received in the jaws, or 
 of an object to be compressed or cut, 
 
       the system further comprising:
 an object intended to be compressed or cut by using the hydrodynamic compression or cutting tool, 
 
       wherein said object to be compressed or cut comprises a radio frequency identification tag (RFID-tag). 
     
     
         16 . System according to  claim 15 , wherein said object is an electrical connector or a hydraulic connector.