SU1143571A1 - Automatic tool change arrangement - Google Patents

Abstract

AUTOMATIC CHANGE OF TOOL, containing a tool magazine, tool holder mounted on a machine caliper and consisting of a tool supporting mechanism with an instrument support and a tool slot with a socket, a tool locking mechanism and a tool change mechanism with a leash for interacting with the tool socket, In the tool holder, a guide groove is made perpendicular to the groove under the tool, characterized in that, in order to reduce productivity and improve comfort Twa service device in iistrumentoderzhatele additional groove formed parallel to the guide groove, and instrumentalsh store is designed as a cassette mounted to cooperate with the carrier shift mechanism movement and instrusl ment in the additional groove.

Description

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The invention relates to the field of machine tool construction and relates to loading and unloading devices for automatic tool change S for machine tools, mainly for turning multi spindle machines. , ,

A device for automatic tool changer is known, comprising a tool magazine, a tool holder mounted on a machine caliper and consisting of a tool pressing mechanism with a yfiopoM above the tool and a tool slot with a socket, a tool locking mechanism and a tool change mechanism with a leash for interacting with the tool slot, Just like a guide groove perpendicular to the tool holder.

groove under the tool

A disadvantage of the known device is the considerable time spent on replacing the tools in the device shop and the inconvenience of servicing the device, since the replacement of tools is done individually, in order of their order in the shop when the machine is stopped for this purpose. The purpose of the invention is to increase the productivity and improve the usability of the service of the device. This goal is achieved by the fact that in an automatic tool changer device containing a tool magazine, a tool holder mounted on a machine caliper and consisting of a tool retainer magazine with an emphasis under the tool and a tool slot with a socket, a tool locking mechanism and a tool changer with a driver for engagement with the tool seat, with a guide groove made in the tool holder, perpendicular to the tool groove, additional tools are made in the tool holder The second groove is parallel to the guide groove, and the tool magazine is made in the form of a cassette installed so that it can interact with the driver of the tool changer mechanism and move in the additional groove.

43571I

FIG. 1 shows a device for automatic tool changing, top view; in fig. 2 - section

A-A in FIG. G; in fig. 3 - cut

5 in FIG. one; figure 4 - section bb

in fig. one; in fig. 5 - section GGD in figure 1; figure 6 is a section dD in figure 1; in fig. 7 - tool shop, general view; 8 to to the same, side view; in fig. 9 - the same, vvd from above; in fig. 10 is a kinematic diagram of the device; in FIG. 11, section EE of FIG. ten; FIG. 12, a view W in FIG. four; in fig. 13 - the same, 15 is a top view.

The automatic tool changer consists of the Tool Holder 1, the cover 2, the bracket 3, the tool magazine in the Q form of the cassette 4, the changing mechanisms 5, the locking 6 and the tool pressing 7.

The tool holder 1 is mounted on a support 8 of the machine, for example, a turning multi-spindle automatic machine 25. In the case of the instrument holder 1, grooves 9 - 11 are made, and also mechanisms for changing 5, fixing 6 and pressing 7 of the tool are located. Paz 9 for the tool is made in the form of a prism and 30 is connected to the hole for the tool changing mechanism 5 by the window. The tool changer mechanism 5 consists of a piston 12, a stationary hydraulic cylinder 13, a driver 14, a tool entering the socket, a driver. 15, in contact periodically with the slots of the cassette 4, the spring 16 and the stop 17 of the leash. The tool holder mechanism 6 consists of a grip 18, a stem 19 with a spherical head, a set of cup springs 20, a lever 21, an axis 22, a cylinder 23 and a plunger 24. The mechanism 7 of the tool's stop is made in the form of a lever-wedge lock and consists of an L-shaped lever 25 with a spherical head stop 26 of the tool mounted on the lever 25, spring 27, piston 28, stationary hydrocharacter-cam 29. The groove 10 under the stop is made in the form of an asymmetric prism, one side of which is perpendicular to the plane of the prism of the groove under the tool, and the second is tiltedto the first at an angle, for example 15 °. The cassette 4, installed in the groove of the tool holder 1, is designed to accommodate the stocked tool stock and consists of a base 30, claws 31 and a flat spring 32. The cassette has tool slots 33 whose axes are parallel to the axis of the groove 9 under the tool On the outer side of the base 30, the inclined 34 and the straight grooves 35 are open. The device contains a track control system 36 (for example, in the form of contactless path switches) of the movements of the cylinders 23 and 13. The cutters 37 are mounted in the cassette 4. The device operates as follows in a way. During machining, a cutting tool, for example cutter 37, fixed and tool holder 1, moves together with the machine support 8, making successively working movements for cutting and idling (retraction) of the cutter from the workpiece. The accuracy of the processing depends on the stability of the caliper 8 and on the accuracy and accuracy of the base of the cutter 37 in the toolholder 1. The cutter 37 is located in two directions: perpendicular to the machining direction by installing the latter into a prismatic groove 9 and parallel to the machining direction at the expense of abutting the cutter 37 against the stop 26 These conditions for the base of the cutter 37 ensure that the cutting edge of the cutter 37 is permanently positioned when it is replaced. The moment of tool change depends on the amount of wear of its cutting edge to and it is determined by a special control device or the operator servicing the machine, to change the dimensions of the workpiece. By a signal from the controlling device or operator, who determined the need for a tool change, the working cycle of the machine is interrupted and the caliper 8 of the latter stops in the initial position taken away from the part. Stopping the caliper 8 in the initial position is a signal for starting the operation of the device. The hydraulic cylinder - the fist 29, moving forward, presses with its bevel the spherical head of the stop lever 25. At this stop 26, lifting, frees up the zones for moving the cutter 27 along the groove 9 of the tool holder 1 into the groove 33 1 14 of the cartridge 4. At the same time, the plunger 24 of the mechanism 6 for fixing the tool 6 presses the rod 19 through the lever 21, which in turn compresses the set disc springs 20, while raising the clamp 18, the same freeing the cutter from the clamp. The track control system 36 fixes the end of the forward movement of the cylinder-cam 29 and gives the command to start the operation of the tool changer mechanism 5. In this case, the hydraulic cylinder 13, which is rigidly connected with the driver 15, in turn connected with the driver 14 through the spring 16, moves the latter into the free groove 33 of the tape 4 prepared for the change until the driver 14 stops on the support 17. Continuing moving, the hydraulic cylinder 13, compressing the spring 1u 16, moves the lead 15, which, in contact with the inclined slots 34 of the cassette 4, moves the latter by another 0.5t, where t is the pitch of the cartridge 4 necessary to retract the groove with the cutter 37 and install it in the initial position of the groove with a new cutter 37, prepared for enes. At the command of the track control system 36, the hydraulic cylinder 13 begins to move forward. In this case, the lead t5, which is in contact with the inclined slots 34 of the cassette 4, moves the latter by another 0.5t, thus setting the cassette 4 to its original position, in which the lead 14 enters the groove of the new cutter 37, Continuing the forward movement, the hydraulic cylinder 13 through the driver 14 moves the cutter 37 into the groove 9 of the toolholder 1. When the cutting tool 37 is moved forward, a command is given to retract the hydraulic cylinder cam 29. to the rear position. In this case, the lever 25c is lowered by the stop 26 under the action of the flange 27 to the support groove 10. At the end of the stop installation, a command is given to move the cylinder 13 back, while the cutter 37 presses the stop 26 through the lead 14, and then the cutter 37 is clamped, which is due to the force of the belleville springs 20 through the strap 18. Belleville springs 20 come into effect after depressurising the pad cylinders 23. By the end of a shift signal, the signal is transmitted to the driver in a KOAogMime 91M1IAA. With this system, the “36 track coitrol gives conanda and the progress of the working cycle of the flock. lUm is used in the inventory processing process of tools that have been removed from the cash drawer on a computer system (not shown), the machine stops. In this case, the caliper 8 is located in the position retracted from the work piece and then the cartridge 4 is replaced with the used tool stock. on cassette 4 with a new stock of tools prepared in advance during the machine operation. Next, the machine is turned on and the automatic tool change cycle is repeated. The proposed device For automatic tool change will allow to increase the number of machine tools and the machine maintenance rate by reducing the time spent on removing the used tool and installing a new tool. In addition to the TGO, the convenience of maintaining the machine will be increased due to the use of the machine and no need to remove and install the store with a new stock of tools.

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Claims (1)

DEVICE FOR AUTOMATIC TOOL CHANGE, comprising a tool magazine, a tool holder mounted on a machine support and consisting of a tool clamping mechanism with an emphasis under the tool and a groove under the tool with a socket, a tool locking mechanism and a tool change mechanism with a leash for interaction with the tool socket, and the tool holder has a guide groove perpendicular to the groove for the tool, characterized in that, in order to increase productivity and improve the convenience of maintenance When the device coexists, an additional groove is made in the tool holder parallel to the guide groove, and the tool magazine is made in the form of a cartridge installed _Λ with the possibility of interaction $ with the leash of the tool change mechanism and movement in the additional groove. • 1