SU513790A1 - Tool post - Google Patents

Description

one

The invention relates to the field of metalworking and relates to devices for installing and securing cutting tools on lathes, including CNC machines, having a center height of 200-300 mm.

PisBecTHbi tool holders, the mechanism of rotation and fixation of which includes forcibly rotating nut placed on its axis, interacting with the cam half coupling, and also two gear rims, one of which is made in the form of a collet, the petals of which receive a radial movement when interacting with an axially moving cone, interacting with the cam half coupling through the cam mounted on the toolholder axis.

In order to reduce the dimensions of the tool holder, one of the gear rims is designed as an axially movable splined gear half coupling, which interacts with the cam half coupling through a screw stop mounted on the tool holder axis.

FIG. 1 shows the proposed tool holder with connecting places of water incisal blocks, top view; in fig. 2 - tool holder, vertical section; in fig. 3 - development of face cams of surface B.

The toolholder contains a Kortsus 1, which is fixed on the upper support 2, has the ability to rotate around a fixed axis 3, and a novorot and fixation mechanism placed on the axis, including a nut 4, interacting with a cam half coupling, pins 6, pressed into the nut 4 On the upper slide 2, the gear disk 8 is rigidly fixed with pins 7, the splined gear half coupling 9, inside which the spring 10 is stirred, engages with which is axially movable in the axial direction, and interacts with the spline and the sleeve 11. The sleeve 11 also has a triangular shape Mechanical teeth, which serve for fixing the sleeve after assembly and alignment of the toolholder to a support of the machine. The axial movements of the half coupling 9 in the sleeve 11 are limited by a screw stop 12 rotating in the nut 13.

The upper end part of the screw stop for engagement with the cam half coupling is made with cams, the said coupling half being held in constant engagement under the influence of the spring 14. Mechanism

Claims (1)

The rotation of the fixation is closed by a flange 15, which is attached to the housing 1 by screws 16 and has holes for the adjusting screws 17, which allow the spring 18 to change the clamping force, under the influence of which is the retainer 19 that fits into the slots of the toothed disk 8. On the side surfaces The shells 1 are fixed by the cutting blocks 20, by means of the eccentrics 21 and the grams 22. The rotation and fixation of the toolholder in different angular positions is obtained as follows. A cap wrench (handle) turns the nut 4 (counterclockwise), which with pins 6 turns the cam coupling half 5. At the same time, the coupling half 5 with its cams (rectangular profile) acts on the cams of the screw stop 12. The latter, rotating in the nut 13, moves up. At the same time, the slotted zubchaty half coupling 9 is raised by the spring 10, and thus disengages from the teeth of the disk 8. Turning further, the screw stop 12 abuts against the flange 15 and slightly raises the tool holder, turning it to a different main position. After the tool holder is rotated to the required angle, having previously secured it with a clamp 19 in the slot of the disk 8, it is clamped in this position. To do this, turn the nut 4 (cap wrench) in the opposite direction (on the finishing arrow). Screwing the nut 4 rotates the cam half coupling 5 and the screw stop 12, which presses the serrated coupling half 9 prior to engagement and rigid fixation of the system with the teeth of the disk 8. After rigid fixation, with further rotation, the half coupling 5 slant off the jaws of the jaws, output from engagement with the stop 12. The nut 4, screwing on, acts on the flange 15, the nut 13 and the sleeve I, producing the final rear. Thus, a rigid fixation of the housing of the tool holder 1 relative to the caliper 2 and all the details of the mechanism of rotation and fixation relative to each other occurs. The rotary toolholder is assembled in the following sequence. A spline sleeve I is inserted into the housing 1, then a nut 13 is installed with a screw stop 12 and a flange 15, which is previously pressed against the housing with screws 16. A gear disk 8 is mounted on the upper support 2 and rigidly fastened with pins 7. Splined gear half coupling 9 with spring 10 is mounted on the upper support 2, then the body 1 is installed. The nut 4 is assembled with the cam half coupling 5 and the spring 14 and is screwed together onto the axle 3, while the screw stop presses the slider gear half coupling 9 to the gear disk 8. Two clamps 19 with springs 18 and adjusting screws 17 are installed into the housing 1, then the housing 1 is installed in an angular position until the clips 19 are aligned with the holes on the gear disc 8. The nut 4 is clamped finally so that the end teeth of the spline sleeve 11 penetrate into the body 1 and create a rigid connection of the spline sleeve with the housing. The screws 16 finally clamp the flange 15. The tool holder with a turning and fixing mechanism described can be used both with interchangeable cutting tools and in a standard design, taking into account the attachment to the existing model of lathes. The invention The toolholder with a turn-to-lock mechanism, comprising a forcibly rotating nut placed on the toolholder axis, interacting with a cam half sleeve, and also two gear rims, the first of which are located on the same axis. which is rigidly fixed on the support of the machine tool, characterized in that, with the goal; reducing the size of the toolholder; the second gear rim is made in the form of a splined gearing half coupling, installed with the possibility of axial displacement and interacting with the cam number coupling by means of: a screw stop mounted on the toolholder axis. D- / 1 /five NoSepjfMcmu S