CS273287B1 - Device for turbines' and turbo-compressors' inside rotating surfaces machining - Google Patents

Abstract

The principle of the solution consists in the fact that the drive box is equipped with a drive unit, on whose shaft there is a pinion with a safety link, which is across an inserted transmission gear engaged with a toothed wheel linked by the shaft with a switch. The pinion is across another inserted wheel engaged with a toothed wheel, on whose shaft there is an inner toothed wheel of a differential, which is engaged on the one hand with a toothed wheel arranged for drive of a spindle of the drive box and on the other hand with the toothed wheel engaged across a toothed wheel and a tappet with a milling spindle, while the spindle of the drive box with a clamping mechanism of a drilling rod is equipped with a link engaged with a toothed wheel, on whose shaft there is a conical wheel engaged across an inserted wheel with a toothed wheel for movement of a tool out of a tool holder and also a conical wheel engaged with other inserted toothed wheel for movement of another tool holder.<IMAGE>

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for machining the internal rotating surfaces of turbines and turbo-compressors, in particular for horizontal boring machines.

Until now, for this purpose, boring bars or various types of wing slides have been used with tools pre-set to the desired dimension. The disadvantage of the devices is that they do not allow the tool setting to be changed without visual inspection, i.e. without removing the workpiece cover, which greatly extends the machining time.

These disadvantages are substantially eliminated by a device for machining the internal rotating surfaces of turbines and turbo-compressors, in particular for horizontal boring machines, comprising a gearbox mounted on the machine quill, a drive unit, a digital position indicator sensor and a tool drill bit, the drive housing is provided with a drive unit, on the shaft of which a pinion with a safety clutch is mounted, which is engaged by an interposed gearwheel connected by a shaft with a switch, the pinion being engaged with a gearwheel on the shaft of which the internal gear of the differential is engaged with the gear arranged to drive the spindle of the gearbox and the gear connected via the gear and the carrier with the milling spindle, the gearbox spindle with the clamping device the drill rod is provided with a clutch coupled to a gearwheel on the shaft of which a bevel gear is coupled via an idler to the tool holder in the tool holder and a bevel gear which engages the other idler gears to move the second tool holder .

The advantage of the proposed solution is that it allows to adjust the tool and read its position on the digital display without having to remove the machined body lid. This greatly increases machining productivity while achieving high precision.

An exemplary embodiment of the device according to the invention is shown in the drawings, in which Fig. 1 is a schematic representation of the drive housing; Fig. 2 is a schematic representation of a drill rod with mechanical gears for moving tool holders.

The device comprises a drive housing with gears attached to the machine quill 21, a drive unit 11. a digital position indicator sensor 14 and a drill rod 2 with tool holders 24. 25. A pinion 2 with a safety clutch 13 is mounted on the shaft of the drive unit 11. the idler gear meshing with the gear 2 connected by a shaft with a switch 17 indicating the zero and end positions of the quill 21. The pinion 2 is in gear with the gear wheel 4 via the other idler. on the shaft of which the inner gear 10 of the differential 10 is engaged, which engages with the gear 9 arranged to drive the spindle 22 and the gear 8 connected via the gear 2 which engages the gear 8 and the carrier 12 s machine spindle 23. The spindle 22 of the drive housing 2 J ^e arranged toothed coupling 15. The spindle 22, the clamping device clamps the drill rod with the second uchycenými tools in tool holders 24 and 25. Since gear 9 is transmitted to the speed drill rod 2 so that the gear the clutch 15 is coupled to the gear 18 on the shaft of which the bevel 19 is connected via the intermediate gears to the gear 20 for the extension of the tool holder 24 and the bevel gear connected via the intermediate gears for the second tool holder 25 .

The equipment for machining the inner rotating surfaces of turbines and turbo-compressors can be advantageously used especially on large quill horizontal horizontal milling and boring machines. «

Claims (1)

SUBJECT OF THE INVENTION Apparatus for working the inner rotating surfaces of turbines and turbocompressors, in particular for horizontal boring machines, comprising a transmission housing mounted on the machine quill, a drive unit, a tool position indicator and a drilling rod with a tool CS 273287 B1, characterized in that the drive housing ( 1) is provided with a drive unit (11), on the shaft of which a pinion (3) with a safety clutch (13) is mounted, which is engaged by an interposed gearwheel (5) connected by a shaft with a switch (17); a further intermediate gear is a pinion (3) engaged with a gear (4), the shaft of which is disposed with an internal differential gear (10) which is engaged with a gear (9) arranged to drive the spindle (22) of the drive housing (1) and a gear (6) connected via a gear (7) and a carrier (12) to a milling spindle (23), the spindle (22) the drive housing (1) with the drill rod clamping device (16) is provided with a clutch (15) connected to the gear (18), on the shaft of which the bevel gear (19) is supported, connected via the idler gear (20) for extending the tool from the tool holder (24) and a bevel gear coupled to the other intermediate gears for moving the further tool holder (25).