IL25933A - Tool mounting unit - Google Patents

Description

PATENT ATTORNEYS COHN A MICHAEL COHN ISRAEL SHACHTER PATENTS AND DESIGNS ORDINANCE SPECIFICATION A tool mounting I an Israel of 6 do hereby declare the nature of this invention and in what manner the same is to be to be particularly described and ascertained in and by the following statement This Invention relates to a tool mounting unit adapted for use with a standard universal lathe chuck of the kind in one face a plurality of radially directed jaw tracks in which are located displaceable in the tracks which can be in position so as to grip the work Such a lathe chuck referred to in this specification as a universal lathe With standard universal lathe chucks the work piece is held position by the jaws and is machined by the cutting tool upon rotation of the work piece by the In many the shape and else of the work piece as to obviate the possibility of mounting in the chuck and rotating Under these the work piece is fixedly mounted on the lathe carriage and the cutting tool mounted in the such an considerable difficulties are encountered in practice in connection with the accurate positioning of the cutting It is an object of the present invention to provide a tool mounting unit use with a standard universal chuck so as to facilitate the use of the chuck mounting of the too whilst leaving it capable of in an orthodox for the mounting of a work According to the present invention there provided a tool mounting unit adapted use with a standard universal lathe chuck and comprising and movable elements adapted to be mounted respectively in jaw tracks of the the movable element being adapted to have a tool mounted therein and a screw gauge being mounted between the two elements and adapted to bear respectively at ends such a tool mounting in accordance with the adjustment of the screw gauge enables a fine arrangement of a tool mounting in accordance with the present invention will now be described by way of example and with reference to the accompanying drawings in whicht 1 is a side elevation of the unit as mounted in a 2 is a plan view of the unit and chuck from and 3 a cross sectional view of a detail of the unit shown in 1 taken along the line As seen in the the chuck comprises a standard cylindrical chuck block 1 hawing a throughgoing bore Formed on the upper surface of the chuck block 1 are two pairs of crossing jaw tracks 3b and When the chuck is to be used for carrying a cutting tool 5 mounted o a suitable pillar the standard jaws are removed from the jaw tracks and in a pair of jaw traeks at opposite ends thereof there are fixed two elements 7 and 8 both elements hawing a similar sectioned shape shown in 3 of the elements 7 and 8 which each have a throughgoing bore are respectively associated with tightening nuts 7a and 8a respectively adapted to be slid into position in the jaws 4b and 4a and having tapped element 7 is bolted into a position by means of a bolt 9 which passes through the aperture in the element 7 and screws into the tightening nut element 8 is basically an enlarged version of the element 7 and is provided with a pair of two receiving apertures 10 and U the drawing the mounting pillar 6 of the tool is shown fixed by means of grub screws 12 the element 8 screws threaded aperture in the nut further holt passes through the receiving aperture not occupied by the mounting pillar and screws into a corresponding threaded aperture in the tightening nut In this way the element can be fixed in any desired The aperture U is furthermore provided with grub screws 14 so that in the event that the tool mounting pillar 6 ie located in this aperture it can be secured by these grub screws A screw gauge 15 has one end screwed into a tapped aperture formed the element 7 adjacent the 7 it being provided with a knurled turning ring 16 adjacent a calibrated ring 17 and has its other end also provided with a knurled ring abutting the element In the tool 5 on its pillar 6 is mounted in the element 8 either the apertures 10 or 11 and with the bolting nuts loosened the element is roughly adjusted in position whereupon the screw gauge is turned until the element is given ite fine adjustment after which the screw 17 is tightened thereby clamping the tool in the required It will be realised that by virtue of the provision of the two clamping apertures 10 and 11 the position of the tool can be varied over a considerable range of distances thereby giving the possibility of working over a continuous range of insufficientOCRQuality

Claims (1)

particularly described and ascertained the nature of my eaid invention and in what manner the ease is to he I declare that what I claim A tool mounting unit adapted for use with a standard universal lathe chuck and comprising and movable elements adapted to in tracks of the the movable element being adapted to have a tool mounted and a screw gauge mounted between the two elements and adapted to bear respectively at its ends A tool mounting unit wherein the movable element provided with a plurality of aperturee which the tool can be A tool mounting unit according to
1. Claim 1 or wherein each element ie associated with tightening nut adapted to be into position in the respective jaw track and having a tapped aperture aligned with a corresponding bore formed in the A tool mounting unit substantially hereinbefore described by way of and with to the accompanying Bated this 7th day of 1966 the Applicant insufficientOCRQuality