RU218874U1 - DEVICE FOR ELECTROMECHANICAL PROCESSING - Google Patents

Abstract

The utility model relates to mechanical engineering and repair production and can be used to harden and restore the working surfaces of machine parts.

The device for electromechanical processing contains a power step-down transformer with regulation and control equipment, placed in a housing, the base of which is fixed on a movable carriage, which is connected to the adapter by two guides located on the sides of the carriage with the possibility of horizontal movement of the carriage perpendicular to the workpiece. Each guide is equipped with a spring of equal stiffness. The adapter is rigidly fixed on the carriage of the lathe, working tools in the form of rollers are connected directly to the terminals of the secondary winding of the power step-down transformer. The adapter is offset to the left relative to the machine carriage.

The offset of the adapter to the left relative to the machine carriage provides access to the mechanisms for adjusting the reach of the lathe carriage.

Description

The utility model relates to mechanical engineering and repair production and can be used to harden and restore the working surfaces of machine parts.

Known installation for electromechanical processing [Patent RU No. 2786552, publ. 12/22/2022], which includes a power step-down transformer with regulation and control equipment placed in a housing, the base of which is fixed on a movable carriage, which is connected to the adapter by two guides located on the sides of the carriage with the possibility of horizontal movement of the carriage perpendicular to the workpiece, each guide is equipped with a spring equal to rigidity, the adapter is rigidly fixed on the support of the machine, working tools in the form of rollers are connected directly to the terminals of the secondary winding of the power step-down transformer.

The known installation for electromechanical processing has the following disadvantage: the adapter mounted on the support of the lathe blocks access to the mechanisms for adjusting the reach of the lathe carriage.

EFFECT: providing access to mechanisms for adjusting the reach of a lathe carriage.

The specified technical result is achieved by the fact that the adapter is shifted to the left relative to the machine carriage.

In FIG. 1 shows a device for electromechanical processing, in Fig. 2 is a plan view of the electromachining device.

The device for electromechanical processing contains a power step-down transformer with regulation and control equipment, located on the lathe carriage, working tools 1 in the form of rollers, the current supply to which is carried out directly from the secondary winding transformer. A power step-down transformer with regulation and control equipment is placed in a housing 2, the base of which is fixed on a movable carriage 3, which is connected to the adapter 4 by two guides 5 located on the sides of the carriage 3 with the possibility of horizontal movement of the carriage 3 perpendicular to the workpiece. Each guide is equipped with a spring 6 of equal stiffness. Adapter 4 is rigidly fixed on the lathe carriage. In order to prevent blocking of the mechanisms for adjusting the reach of the machine carriage, the working part of the adapter 4 is offset from the center of the mount. Working tools 1 are connected directly to terminals 7 of the secondary winding of the power step-down transformer to provide electromechanical processing of the workpiece.

The device works as follows: the steel billet fixed on the machine is rotated at a speed of υ=0.02...0.06 m/sec. On working tools 1 in the form of rollers, connected to the workpiece surface to be machined, an electric current of up to 3000 A and a voltage of 2 ... 6 V is supplied directly from the secondary winding of the step-down transformer. The rollers are pressed against the workpiece by moving the machine carriage, the pressing force is deformation of the springs 6. At the point of contact between the rollers and the workpiece, its surface layer is heated up to 900...1100°C (the depth of the heated metal layer is regulated by means of the appropriate control and monitoring elements). The tool feed along the axis of the workpiece is provided by the kinematics of the machine and is 0.07 ... 16 mm / rev. As a result of the thermomechanical action of the rollers, various electromechanical processing operations are carried out: restoration, hardening, etc.

The results of the measurements showed that the losses of electrical energy decreased by an average of 80%.

The use of a movable spring-loaded carriage will ensure stable contact of the working tools with the surface to be treated. Connecting working tools directly to the terminals of the secondary winding of a power step-down transformer will reduce the loss of electrical energy, as well as ensure the stability of hardness and hardening depth.

The shift of the adapter to the left relative to the carriage of the machine provides convenient access to the mechanisms for adjusting the reach of the carriage of the lathe.

Claims (1)

A device for electromechanical processing, containing a power step-down transformer with regulation and control equipment, located in a housing, the base of which is fixed on a movable carriage of a lathe, which is connected to the adapter by two guides located on the sides of the carriage with the possibility of horizontal movement of the carriage perpendicular to the workpiece, each the guide is equipped with a spring of equal stiffness, and the adapter is rigidly fixed on the carriage, while the working tools are made in the form of rollers and connected directly to the terminals of the secondary winding of the said power step-down transformer, characterized in that the adapter is shifted to the left relative to the lathe carriage.

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