RU156164U1 - TOOL FOR ELECTROMECHANICAL DORING - Google Patents

Abstract

The utility model relates to mechanical engineering, in particular, to tooling for surface hardening and can be used for electromechanical backing of parts. The electromechanical mandrel tool contains a mandrel reinforcing tooth, an insulator sleeve, a strain gauge weight. The tool is characterized in that it further comprises a housing, a round nut, a washer, a thrust cylinder, a shank, and a Morse taper. A mandrel is installed in the mandrel body, which is fixed with a round nut, washer, strain gauge weight sensor and thrust cylinder. A shank and a Morse taper are mounted on the tool body. This design of the tool allows to exclude the displacement of the reinforcing tooth in the process of electromechanical burning.

Description

The utility model relates to mechanical engineering, in particular, to tooling for surface hardening and can be used for electromechanical backing of parts.

A known tool for electromechanical burning of smooth cylindrical holes containing a mandrel, reinforcing and calibrating the teeth, an insulating sleeve, insulating rings and a retaining ring, characterized in that the mandrel has a thread in the upper part and is screwed into a current-insulating sleeve that is pressed into a flange connected by four bolts with a Morse cone flange, with a strain gauge weight sensor installed between said flanges. [Patent No. 146911 RU, publ. 10/20/2014. Bull. No. 29, cl. B24B 39/02].

The disadvantage of this tool is the deformation of the current-insulating sleeve due to great efforts in the burning process, which can reach 30 ... 50 kN, as a result of which the reinforcing tooth is displaced during the operation of the tool.

The technical result is to ensure the strength of the design of the tool and to eliminate the displacement of the reinforcing tooth during electromechanical annealing.

The technical result is achieved by the fact that the tool additionally contains a housing, a round nut, a washer, a thrust cylinder, a shank, a Morse taper. A mandrel is installed in the mandrel body, which is fixed with a round nut, a washer, a strain gauge weight sensor and a thrust cylinder, a shank and a cone are installed on the tool body Morse code.

In FIG. 1 shows a General view of the tool for electromechanical burning.

The mandrel includes a mandrel 1, housing 2, a round nut 3, a washer 4, a strain gauge weight sensor 5, a thrust cylinder 6, a shank 7, an insulating sleeve 8, a Morse taper 9, a reinforcing tooth 10. The mandrel 1 is installed in the tool body 2 and is fixed round nut 3. In front of the round nut 3, a washer 4 is installed in the mandrel body, a strain gauge for weight 5 and a thrust cylinder 6. A shank 7 is installed on the mandrel body 2, on which an insulator sleeve 8 and a Morse taper 9 are installed. A reinforcing tooth 10 is installed on the mandrel 1 .

Work tool for electromechanical burning as follows. The tool is brought to the hole to be machined. Turning on and off the current occurs automatically through the use of a strain gauge weight sensor. The weight sensor is configured to include an electric current through the control system only at a certain pressure, i.e. while ensuring reliable contact, which eliminates sparking and increases the durability of the tool. The weight sensor sends a signal to the amplifier, the amplifier to the comparison device (comparator), as a result of which either the on-relay or off-relay is triggered. A current with a density of 250 ... 300 A / mm and a voltage of 4 ... 6 V is passed through the contact point of the reinforcing tooth with the surface being machined. As a result of subsequent axial movement of the tool relative to the axis of the hole being machined, the annular region of the reinforcing tooth with the inner surface of the hole is heated to a temperature of 900 ... 1000 ° C. Processing must be carried out with the supply of coolant, for example, water or lubricating coolant, to the hole being machined.

This design of the tool allows to exclude the displacement of the reinforcing tooth in the process of electromechanical burning.

Claims (1)

An electromechanical die-cutting tool comprising a mandrel, a reinforcing tooth, an insulator bushing and a strain gauge weight sensor, characterized in that it further comprises a housing, a round nut, a washer, an abutment cylinder, a shank, a Morse taper, and a mandrel fixed in the housing a round nut, a washer, a strain gauge weight sensor and a thrust cylinder, and a tool shank and Morse taper are installed on the body.

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