RU196264U1 - Accessories for EDM wire-cutting machine - Google Patents

Abstract

The utility model relates to the field of EDM and allows the processing and restoration of the profile of a diamond cylindrical (tubular or ring) drill for drilling architectural and automotive glass on an EDM machine. The essence of the utility model is a tool for EDM wire-cutting machine designed for straightening cylindrical diamond drills , contains a base with a plane for installation on a horizontal table of an EDM wire-cutting machine, shaft with a drive and a clamping device mounted on the shaft for mounting the drill to be machined, the shaft being oriented parallel to the plane for installation, and the tooling is configured to supply operating current to the drill being machined. 3 ill.

Description

The utility model relates to the field of electrical discharge machining and allows the processing and restoration of the profile of a diamond cylindrical (tubular or ring) drill for drilling architectural and automotive glass on an EDM machine.

EDM machines are used to cut various workpieces having a very different shape and size. Processing takes place either at a right angle or at an angle of 1 to 30 degrees. The angle at which workpieces are processed depends, first of all, on the configuration of the machine. The beginning of the cut can occur from the edge of the workpiece, as well as from the inside through a hole that has previously been drilled. EDM machines are intended for the production of parts with an accuracy of 0.015 mm (see, for example: https://stanok.guru/stanki/elektroerozionnye-stanki-i-princip-raboty.html).

Known technology for dressing diamond tools on EDM machines. Mostly this technology is used for grinding (abrasive) wheels (see, for example: SU621522, SU1024181, RU2432239, RU2014183). To use the EDM wire-cutting machine for these purposes, special equipment is not required, since the processing is perpendicular to the plane of the grinding wheel.

It is also known to use electrospark machining of artificial polycrystalline diamond tools regardless of their shape (EP0010276A1). In the latter case, we are not talking about wire-cutting machines. In this case, the working tool is an electrode (cathode) having a negative profile shape, which must be made in polycrystalline synthetic diamond, that is, the working body is characterized by an extremely specialized purpose.

It is also known the use of EDM machines for the final processing of diamond cylindrical drills (RU2432229). The description of the invention does not contain information about a specific technological process or design features of equipment for cutting holes, but the technology allegedly protected by the said patent is not applicable for straightening cylindrical drills.

The technical problem that the utility model addresses is the impossibility of straightening diamond cylindrical drills on an EDM wire-cutting machine without additional equipment.

The technical result is the supply of a cylindrical diamond drill to the working body of the machine with the ability to edit (restore working capacity) of the processed product.

The indicated technical problem is solved by equipment for an EDM wire-cutting machine designed for straightening cylindrical diamond drills containing a base with a plane for installation on a horizontal table of an EDM wire-cutting machine, a shaft with a drive and a clamping device mounted on the shaft for installing the machined drill, while the shaft is oriented parallel to the plane for installation, and the tooling is configured to supply a working current to the drill being machined.

The utility model is illustrated in the drawing and photographs.

In FIG. 1 shows a general view of a tooling for an EDM wire-cutting machine.

In FIG. 2 is a photograph showing the preparation process for the start of the EDM wire-cutting machine.

In FIG. 3 is a photograph showing the processing of a drill.

Equipment for an EDM wire-cutting machine 1 contains a base 2 with a plane 3 for installation on a horizontal table of an EDM wire-cutting machine, a shaft 4 with a drive (an example implementation includes a motor 5 and a chain transmission (chain 6, sprockets 7)) and mounted on the shaft a clamping device 8 for installing the drill being machined 9. The tooling is configured to supply a working current to the drill being machined (pos. 10).

The device operates as follows.

With base 2, the equipment is installed on the horizontal table of the EDM wire-cutting machine 1. A drill 9 is installed in the clamping device 8. The equipment is strictly positioned relative to the working body (brass wire) of the machine 1. First, the defects of the drill 9 are analyzed and the fundamental possibility of editing is assessed. Due to the specialized software (not subject to protection) they provide removal or rectification of defects of the drill 9. The drill is then rotated through shaft 4 from engine 5 through a chain transmission (chain 6, sprockets 7).

Claims (1)

Tooling for EDM wire-cutting machine, designed for straightening cylindrical diamond drills, containing a base with a plane for installation on a horizontal table of EDM wire-cutting machine, a shaft with a drive and a clamping device mounted on the shaft for installing the machined drill, while the shaft is oriented parallel to the plane for installation, and the equipment is made with the possibility of supplying an operating current to the drill being machined.

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