SU1038087A1 - Boring bar and axial tool holder - Google Patents

Abstract

A holder 10 for boring bars and axial tools for vertical lathes enables an accurate centering of the axis its clamping opening with the axis of the workpiece. Positioning keys 20 are provided with inclined faces 21, which engage inclined holder faces. The positioning keys 20 are movable along non-inclined grooves 22 in the clamping face 60 of the machine tool by positioning screws 40, and guide elements 50 fixed to the holder 10 engage in a groove 62 in the clamping face 60 perpendicular to the grooves for the positioning keys. The movement of the keys 20 moves the holder 10 along the "y" axis, the holder being subsequently bolted 70 to the clamping face 60. <IMAGE>

Description

BACKGROUND OF THE INVENTION The invention relates to boring barrels and axial tools for vertical lathes, allowing the axle of a boring bar or an axial tool to be set in the axis of the workpiece. Known holders of boring bars and axial tools do not allow the axis of the mounting hole of the axial tools to change position relative to the axis of the workpiece. The coaxiality of the mounting hole of borshtang and especially axial tools is achieved either by precise positioning of the centering hole in the mounting plane of the machine table relative to the faceplate and 1-EACH positioning of the mounting hole relative to the positioning pin on the holder mounting plane that enters the centering hole in the mounting table of the machine holder or. by drilling a mounting hole in the holder mounted on the machine with a tool mounted on the faceplate. The manufacture of the centering and mounting holes by drilling on a machine is very laborious and at the same time does not ensure alignment of the axial tool and the face plate at different working temperatures of the machine. Holders with a mounting hole made directly on the machine for which they are designed are not applicable to other machines, even of the same type and measure. Thus, the well-known holders are not applicable in mass production (see ed. St. USSR № 11758 class. B 23 B 29/02, 1957). These drawbacks are eliminated in a boring bar holder and axial tools for vertical lathes, comprising a housing with a mounting plane, with which it mates with a similar plane of this machine, the essence of which is that at least one one-sidedly bevelled on the mounting plane of the housing a recess for accommodating a positioning key with a beveled surface, wherein the bevelled surfaces of the recess and the positioning key are adjacent to each other with a gap: The opening key, which by its upper suit enters the first groove, is made in the fastening plane 872 of the vertical lathe, a hole is made of a woolen shape, the axis of which is parallel to the beveled surface of the positioning key, and with which the connecting element, which is mounted in a cylindrical shape hole, interacts and which passes into the threaded hole for engagement with the external thread of the positioning screw, on which the surface is cylindrical smooth the shape of the head of the positioning screw enters the recess of the positioning key, and fitting fitting elements are attached to the housing, for which a second groove perpendicular to the first groove is made on the mounting plane of the vertical lathe using screws for which there are threaded holes in the specified plane of the machine and oval-shaped holes in the body. The advantage of a boring holder and axial tools according to the invention is the possibility of installing an axis of a palletizing hole in the axis of the workpiece, which is achieved with the help of bevelled surfaces of the positioning keys, which are installed with the help of positioning screws. The ability to adjust the holder allows you to compensate for inaccuracies in the centering of the mounting plane of the machine with the faceplate, as well as deviations in alignment at different operating temperatures of the machine. Holders in accordance with the invention can be made independently of the machines for which they will be used, and therefore mass production plates are suitable. FIG. 1 shows the proposed holder, front view; in fig. 2 - the same, side view; Fig. 3 shows a perpendicular view of the mounting plane of the main body; in FIG. 4, section A-A in FIG. 2; in fig. 5 node 1 in FIG. one; in fig. 6 is a frontal positioning key; in fig. 6 - the same, top view; in FIG. 8, section B-B in FIG. 6, On the fixing plane 11 of the housing 10 in the direction of the x-axis, two opposing one-sidedly sloping recesses 12 are made into which the positioning keys 20 are inserted so that their oblique surfaces 21 with a bevel angle fly to the similarly oblique surfaces 13 of the recesses 12. Between the surfaces The 22 positioning keys 20 and the surfaces T of the recesses 12 have a gap v. The upper non-chamfered parts of the positioning keys 20 are inserted into the first groove B1, which is made on the mounting plane of the vertical pump machine 60. The connecting screws 30 are screwed into the body 10. The screws 30 are fastened in order to fix the positioning keys 20 in the set position. For the connecting screws 30 in the positioning keys 20, holes 23 are oblong in shape, the axes of which are parallel to the beveled surfaces 21, which allows the positioning keys 20 to be moved in the recesses 12 in the direction of the x-axis. The positioning keys 20 move with in the direction of the x-axis using positioning screws 40, which are screwed into the housing 10 and enter with their ribbons into the grooves 2 in the positioning keys 20. The positioning screws tO in the housing 10 are guided by their cylindrical surfaces C2 in cylindrical edges. of the driven holes that translate the threaded holes for the external thread 1 of the positioning screws 0. The fitted guide pins 50, which with the help of aaints 80 are fastened in the grooves 15, filled in the housing 10, enter their second parts into the second channel 62 , made in the fastening plane 1 7 of the bone of the vertical lathe 60 perpendicular to the first groove 61, and serve as guides of the housing 10 when its position is set relative to the fastening plane of the vertical lathe 60 and transfer part of the torque about tons of cutting forces. The housing 10 to the fastening plane of the vertical lathe 60 is fastened with four screws 70, for which four oval holes 18 are made in the fastening plane II of the housing 10, which allow the holder to change position on the axis-y. 3, as the kO positioning screws are screwed into the housing 10 and the positioning keys 20 move in the x direction, which is related to the axial movement of the kQ positioning screws, changes due to the bevel of the surfaces 13. and 21, the position of the axis 2 of the housing 10 relative to the Z axis of the vertical mounting plane of the lathe 60 by a value, as a result of which the axis of the fastening z is shifted to the position. By unscrewing the positioning screws LO, the position of the z axis of the housing 10 relative to the z axis of the vertical current mounting machine 60 by the value of +, with the result that the axis of the mounting hole 2 is shifted to the zl position. In an arbitrarily set position in the range of + i the holder is fixed with. the fastening plane of the vertical lathe 60 screws 70. It is recognized as an invention according to the results of the examination carried out by the Office for Invention and Rationalization Czechoslovakia.

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Claims (1)

HOLDER FOR BORING STAINS AND AXIAL TOOLS for a vertical lathe, comprising a housing with a mounting plane, which it mates with a similar plane 'of the specified machine, characterized in that at least one one-sided beveled recess is made on the mounting surface of the housing to accommodate the positioning key with a beveled surface moreover, the beveled surface of the recess and the positioning keys are adjacent. to each other with a gap Y, and in the positioning key, which top part enters the first groove made in the mounting plane of the vertical lathe, an oblong hole is made, the axis of which is parallel to the beveled surface of the positioning key and with which the connecting element interacts, installed in a hole made in the body of a cylindrical shape, and which goes into a threaded hole for interaction with the external thread of the positioning screw, on which A smooth surface of cylindrical shape is provided, and the shoulder of the head of the positioning screw enters the recess of the positioning veneer <and, and fitted guide elements are fastened in the case, for which a second groove is made on the mounting plane of the vertical lathe, perpendicular to the first groove, and the case is attached to the fastening plane of the vertical lathe with screws, for which threaded holes are made in the indicated plane of the machine, and oval-shaped holes in the body.