SU1502245A1 - Universal n/c machine with automatic change of tools - Google Patents

Abstract

This invention relates to a machine tool industry, in particular, to a multi-purpose CNC machine tool with an automatic tool change. The purpose of the invention is to increase the reliability and simplify the design of the machine. The goal is achieved by supplying the cleaning medium for cleaning the base nest 6 of the spindle 5 through a hollow rod 13, an auto-operator 14 and a retainer mounted on it when the latter interacts with the collector attached to the spindle 5 of the machine. At the same time, the spindle 5 of the machine is fixed against rotation and is protected from bending, the rod 13 is advanced to the extreme position, since the contact of the retainer with the collector is made through the safety device mounted on the spindle head 4. 2 or less.

Description

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The invention relates to a machine tool industry, in particular to a multi-purpose CNC machine tool and automatic tool change.

The purpose of the invention is to increase the reliability of work.

FIG. 1 shows a multi-purpose machine with the position of the auto-operator in the extended position of the rod; in fig. 2 - a section in the plane of the axes of the spindle and clamp.

The machine contains a bed 1, a cross table 2. mounted on a bed 1 column 3 with a vertical movable headstock 4 on it, on which a vertical spindle 5 is installed, having a slot 6 based on it for fixing the mandrel with the tool. Next to the bed 1 there is a cabinet of 7 devices and an automatic tool changer connected to the bed 1 with no. Mouui straightening 8. On the cabinet 7 there is a stand 9 with instrumental Mai 10 mounted on it, in the slots of which the tool holders 11 are stirred The tool magazine 10 has a rotational drive 12 around a vertical axis. On the upper part of the rack 9 a sliding floor bar 13 is installed, moving, for example, from a cylinder parallel to the hydraulic system (not shown).

At the end of the rod 13, the body 14 of the auto-operator is fixed relative to it, on which a two-gaze arm 15 is mounted, having the possibility of returning vertical movement and rotation by 180 °.

The safety gear 16 is installed on the spindle head, it is filled} the first in the form of a sleeve. On the body 14 of the auto-operator, a counter lock 17 is installed, which with its outer cylindrical surface is centered in the catcher 16.

The machine also has a device for cleaning the basing nest 6, made in the form of a pusher 18 located in the cavity fixed with a tip 19 and spring-loaded in the direction of extension of the rod 13 by means of a spring 20 and a nut 21.

At the end of the spindle 5, a collector 22 is fixed, inside the spindle there is a clamping device for the instrumental mandrel, including a vertically movable rod 23 and a tolk.ch 24 that interacts with it when changing tools.

The rod 23, the collector 22, the pusher 18, the body of the auto-operator 14, the rod 13 have channels connecting the surface of the clamping nest 6 with a source of compressed air through the nozzle 25 and the rigid tube passing inside the rod 13.

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The machine works as follows.

On the cross table 2, a blank is set. After the end of the machining process transition, a tool change is made. The spindle head 4 is moved upwards to the tool change position, and the angle-oriented stop of the spindle 5 is made with the help of the orientation device 1ppindel (not shown). After this, the rod 13 is extended with the case 14 of the auto-operator fixed on it, the two-grip arm 15 with the new tool holder installed in one of the grippers. The free grip of the arm encompasses the annular groove of the tool holder 11. Next, the tool holder 1 1 expands as the pusher 24 and the rod 23 move downward, after which the two-way arm moves down and removes the used mandrel 11 from the spindle 5.

When the body of the operator 14 approaches the pindeltock 4, the retainer 17 enters the safety device I), eliminating the slack of 111tap | and 1.4 and its oscillation during the operation of the two-gripped hand 15. Simultaneously, the retainer 17 produces a rigid fixation of the pizhdell 5 against the twist . In this case, the tip 19 is in contact with the surface of the collector 22 and, overcoming the force of the spring 20, the pusher 18 is in the retracted position, with Ki TopOM its internal channel is connected to the channel of the collector 22. Next, the compressed air is supplied through these channels, and 1) The mandrel turns out to be along the axis of the shnde.h 5. In the process of supplying the vertical. By moving the two-jawed arm of the new mandrel to the basing nest 6, the compressed air supplied through the choke 25 and the indicated system of channels is exhausted into the atmosphere. y is removed from the surface based g nezda 6 and counter-cone of the tool holder 11, the dust particles. When the mandrel is installed in the clamping seat 6, the mandrel is clamped when moving the pusher 24 and the stem 23 upwards (the clamping device is not shown). Next, the rod 13 is withdrawn from the body of the auto-operator 14 from the shchschdelnaya grandma, while the grip of the hand is released from the tool holder I fixed in the spindle 5, the latch 17 leaves the catcher 16, and the pusher 18 returns to its original position 20 in order to prevent possible leakage of compressed air, the channel in the push rod 18 is 1 closed.

Thereafter, the rotation of the spindle 5 is turned on, and the machine is ready to perform the next technological transition of processing.

Claims (1)

Invention Formula CNC multi-purpose machine with automatic tool change, containing a stand, a column with a movable spindle head with a spindle, which has a clamping seat for fixing the tool, a device for cleaning the clamping slot with a collector and a shut-off valve, a tool magazine, a two-handed auto-operator for changing a tool whose body is mounted on a horizontally movable rod, a source of supply of a cleaning medium, characterized in that, in order to increase the reliability of operation, and pinde 1b on 0 five the tailstock is equipped with a safety sleeve, the body of the operator is a hollow retainer, the collector body is fixed on the ppindle and is made with a hollow retainer slot, the retainer is installed so that it can be placed in the catch hub and interact with the seat in the collector body The clamping nest is located in the cavity of the aforementioned fixative and is made in the form of a spring-loaded pusher, with channels connecting the surface of the clamping nest to the source in the collector and the pusher. supplying the cleaning medium when the pusher interacts with the bottom of the socket in the collector body.