RU173524U1 - Automatic tool changer - Google Patents

Abstract

The utility model relates to the field of engineering and is intended for automatic tool change on metal cutting machines. Automatic tool changer, including a vertical guide rod placed on the base with a manipulator arm mounted on it and equipped with vertical and horizontal displacement and horizontal rotation drives designed to remove tools from the toolbox sockets and return back, and supports with tiers placed on them around the vertical guide rail of the tool shelves, nests in which are designed to accommodate single-direction tools vertical shanks and made from the side of the vertical guide rod, equipped with an additional vertical guide rod with installed on it and equipped with additional drives for vertical and horizontal movement and rotation in the horizontal plane with the additional arm of the manipulator, in the tool shelves from the side of the additional vertical guide rod additional sockets are made designed to accommodate unidirectional vertical tools With the orientation of the shanks, the base is equipped with an annular guide with a carriage equipped with a drive for moving it along the guide, an additional vertical guide rod is fixed in the mentioned carriage with the possibility of joint movement with it, part of the tool shelves are closed, and the rest form a window for transferring tools from the manipulator’s hands to additional arm of the manipulator and back. The technical result is the expansion of technological capabilities. 3 ill.

Description

The utility model relates to the field of engineering and is intended for automatic tool change on metal cutting machines.

The prior art various devices for automatic tool change, made in the form of multi-tiered structures with tool sockets and a manipulator designed to move tools from the sockets to the actuator and vice versa (see, for example, Kolka I.A., Kuvshinsky V.V. , Multioperational machines, M., Engineering, 1983, S. 45 ... S. 47). The layered nature of such structures in various designs is aimed at expanding technological capabilities by increasing the number of tools placed in them.

A common disadvantage of the known analogues is the limited technological capabilities, often caused by the insufficient number of tools placed in them due to the small number of tool sockets per unit occupied area / volume. It is obvious that it is impossible to infinitely increase the size of such devices due to the overall limitations inherent in any real production.

Closest to the claimed prototype is an automatic tool changer, including a vertical guide rod located on the base with a manipulator arm mounted on it and equipped with vertical and horizontal drives and rotates in a horizontal plane, designed to remove tools from tool holders and return back , and supports with tool racks placed in tiers around them on a vertical guide bar, nests in which are designed to accommodate tools with unidirectional vertical orientation of the shanks and are made from the side of the vertical guide rod (US patent No. 2005/0277529 A1, publ. 15.12.2005).

With a very concise design, the prototype still has inherent disadvantages and analogues, in particular, limited technological capabilities due to the insufficient number of tools placed in the device due to the small number of tool sockets per unit of occupied area / volume.

The objective of the utility model is the execution and layout of tool shelves in an automatic tool changer with the maximum possible number of tool sockets per unit occupied area / volume.

The technical result is the expansion of technological capabilities as a device for automatic tool change, and machining centers in which this device is used.

The problem is solved, and the claimed technical result is achieved by the fact that the automatic tool changer, including a vertical guide rod mounted on the base with an installed on it and equipped with vertical and horizontal movement and rotation in a horizontal plane arm of the manipulator with two opposed active grippers, designed for removing tools from the nests of tool shelves and returning back, and supports with tiers placed on neither around the vertical rod guide with tool shelves, the nests in which are designed to accommodate tools with unidirectional vertical orientation of the shanks and are made from the side of the vertical rod guide, equipped with an additional vertical guide rod with an additional arm mounted on it and equipped with vertical and horizontal movement and rotation drives in the horizontal plane a manipulator with two opposed active grippers on the shelves from the side of the additional vertical guide rod, additional sockets are made for accommodating tools with unidirectional vertical orientation of the shanks, the base is equipped with an annular guide with a carriage, the upper base is equipped with an upper ring guide with an upper carriage, the carriages are equipped with a double drive to move them along the guides, an additional vertical a guide rod is fixed between said carriages with the possibility of joint The rooms, part of the tool shelves are closed, and the rest form a window for transferring tools from the manipulator’s hand to the manipulator’s additional arm and back.

The utility model is illustrated by images, where:

in FIG. 1 - the basic design of the claimed device in isometry;

in FIG. 2 - the claimed device, side view;

in FIG. 3 - the claimed device, section aa in FIG. 2.

The figures indicate the following items:

1 - device automatic tool changer;

2 - vertical guide rod;

3 - drive vertical movement of the arm of the manipulator;

4 - drive horizontal movement of the arm of the manipulator;

5 - drive turning the arm of the manipulator in a horizontal plane;

6 - the arm of the manipulator;

7 - two opposed active grippers of the manipulator 6;

8 - tool;

9 - tool shelf;

10 - nest of the tool shelf;

11 - supports for tool shelves 9 and the upper base 18;

12 - additional vertical guide rod;

13 - drive vertical movement of the additional arm of the manipulator;

14 - drive horizontal movement of the additional arm of the manipulator;

15 - drive rotation of the additional arm of the manipulator in a horizontal plane;

16 - additional arm of the manipulator;

17 - two opposite active grips of the arm of the manipulator 16;

18 - an additional socket of the tool shelf;

19 - base;

20 - upper base;

21 - ring guide;

22 - carriage;

23 - upper annular guide;

24 - upper carriage;

25 - dual drive carriage movement;

26 is a window for transferring tools from the manipulator’s hand to the additional arm of the manipulator and vice versa.

A device 1 for automatic tool change (Fig. 1) includes a vertical guide rod 2 mounted on the base 19 and equipped with vertical 3 and horizontal 4 drives for moving and turning 5 in a horizontal plane with the arm of the manipulator 6 with two opposed active grippers 7, designed to remove the tools 8 from the sockets 10 (essentially latches that provide a certain way oriented and reliable position of the tools in the drive) tool shelves 9 and returning back, and supports 11 with tool racks 9 arranged in tiers around the vertical guide rod 2, jacks 10 in which are designed to accommodate tools 8 with unidirectional vertical orientation of the shanks and are made from the side of the vertical guide rod 2. The device 1 is also equipped with an additional vertical guide rod 12 with installed on it and equipped with drives of vertical 13 and horizontal 14 movement and rotation 15 in the horizontal plane of the additional p of the manipulator 16 with two opposed active grippers 17, in the tool shelves 10 from the side of the additional vertical guide rod 12 there are additional sockets 18 designed to accommodate tools 8 with unidirectional vertical orientation of the shanks, the base 19 is provided with an annular guide 21 with a carriage 22, the upper base 20 (the upper base is optional, but desirable) is provided with an upper annular guide 23 with an upper carriage 24, carriages 22 and 24 are equipped with a drive 25 (in the case of two carriages and a double drive) of their synchronous movement along the respective guides 21 and 23, an additional vertical guide rod 12 is mounted on the mentioned carriages 22 and 24 with the possibility of joint movement with them, part of the tool shelves 9 are closed, and the rest form a window 26 for transferring tools 8 from the arm of the manipulator 6 to the additional arm of the manipulator 16 and vice versa.

The device operates as follows.

In the initial state, the tools 8 are installed in the latches (sockets) 10 and 18 of the tool shelves 9, and the arms of the manipulators 6 and 16 with active grippers 7 and 17 free of the tool are in an arbitrary position. If it is necessary to install the tool 8 in the executive body (for example, in the spindle) of the machine, by the command of the control system (not shown, similar to the prototype) the arm of the manipulator 6 or 16 (depending on which side of the tool shelf 9 is the required tool 8) is installed using the appropriate vertical drive 3 or 13 opposite the desired tool shelf 9, using a rotation drive 5 for the arm of the manipulator 6 or a dual drive 25 for the arm of the additional manipulator 16 the arm of the corresponding manipulator and it is installed opposite the latch 10 or 18 with the desired tool 8 on the selected tool shelf 9 and for the arm of the additional manipulator 16 using a rotation drive 15 (turning the arm of the manipulator 16 in the horizontal plane of the selected tool shelf 9), one of the active captures 17 of the manipulator arm 16 is installed opposite the latch 18 with the desired tool 8 (for the arm of the manipulator 6, this operation is performed simultaneously with the previous operation with the same rotation drive 5). Then, the arm of the manipulator 6 or 16 with the help of the corresponding actuator 4 or 14 of horizontal movement extends to this tool 8 until the vertical axes of this tool 8 coincide with the active gripper 7 or 17 of the corresponding arm of the manipulator 6 or 16 and carries out an active capture / clamping of the tool 8. After that the arm of the corresponding manipulator 6 or 16, with the help of the corresponding actuator 4 or 14 of horizontal movement, goes in the opposite direction with the tool 8 until the tool 8 comes out of the lock 10 or 18 of the tool shelf 9. Further, if the desired tool 8 was located on the side of the arm of the manipulator 6, then the arm of the manipulator 6 is installed in the window for transferring tools from the arm of the manipulator to the additional arm of the manipulator and back 26, where the tool 8 is intercepted by the approaching arm of the additional manipulator 16, then the arm of the additional manipulator 16 is installed in the installation zone - removal of the tool in the executive body of the machine, where the executive body, for example, the spindle of the machine, fits, tool, fixes it and after releasing the tool by actively grabbing the arm 11 of the manipulator displays tool 6 in the working area for processing the workpiece (the process is similar to the prototype, not shown in the images). If the required tool 8 is located on the side of the arm of the additional manipulator 16, the latter goes directly to the installation zone - removal of the tool in the executive body of the machine. During the processing of the workpiece, the arms of the manipulators 6 and 16 perform the above operations in preparation for the installation of the next tool. After the processing operation, the spindle returns to the installation - removal zone. First, the manipulator 16 removes the spent tool from the spindle, then using the rotation drive 15 in the horizontal arm of the manipulator 16 is rotated 180 ° and a new tool 8 is installed in the spindle. Next, all operations are repeated in the reverse order until the tool 8 is installed in a free lock 10 or 18 of the tool shelves 9 of the tool magazine 1 and preparation for the installation of a new tool 8. After all processing operations have been completed, the unloaded arms of the manipulators 6 and 16 are brought to their original arbitrary position.

In the considered example and in the images, a device with open sockets is shown, however, the sockets can also be of a closed type (see, for example, Kolka I.A., Kuvshinsky V.V., Multioperational machines, M., Mechanical Engineering, 1983, p. 47 , Fig. e). In this case, to remove the tool from the socket or return it back to the socket, an additional vertical movement of the manipulator arm will be required, which is provided with a drive 3 for vertical movement of the manipulator arm (as well as an additional drive 13 for vertical movement of the additional manipulator arm).

The experiment (computer simulation) showed that the proposed design of the automatic tool changer will increase the number of tool sockets (and, consequently, tools) per unit of occupied area / volume up to 40% compared with the prototype, and in some cases even a little more.

Based on the foregoing, we can conclude that when implementing the utility model, the task - the execution and layout of tool shelves in the automatic tool changer with the maximum possible number of tool sockets per unit occupied area / volume - has been solved, and the claimed technical result is expansion of technological capabilities - achieved.

An analysis of the claimed technical solution for compliance with the conditions of patentability showed that the characteristics indicated in the utility model are significant and interconnected with the formation of a stable set of necessary features, unknown at the priority date from the prior art and sufficient to obtain the claimed technical result.

Thus, the above information indicates the fulfillment of the following set of conditions when using the claimed technical solution:

- an object embodying the claimed technical solution, when implemented, relates to the field of mechanical engineering and is intended for automatic change of tools on metal cutting machines;

- for the claimed object in the form described in the utility model, the possibility of its implementation using the methods and methods described above and known from the prior art on the priority date has been confirmed;

- the object embodying the claimed technical solution, when implemented, is able to ensure the achievement of the technical result perceived by the applicant.

Therefore, the claimed object meets the criteria of patentability "novelty" and "industrial applicability" under applicable law.

Claims (1)

Device for automatic change of tools on a metal cutting machine, containing upper and lower bases, a vertical guide rod placed between them with a manipulator arm mounted on it and supports with tool racks with jacks for tiered tool shafts arranged around them on a vertical guide rod for shanks with unidirectional vertical orientation of shanks which are made from the side of the vertical guide rod, while the arm of the manipulator is configured to be removed a tool from the shelves of the tool shelves and returning back and is equipped with drives for its vertical and horizontal movement and rotation in the horizontal plane, characterized in that it is equipped with an additional vertical guide rod mounted on the other side of the tool shelves relative to the said vertical guide rod with it mounted the arm of the manipulator, and the arm of the manipulator of the additional rod is arranged to move tools between the jacks ruling shelves or with the aforementioned arm of the manipulator and the executive body of the machine and is equipped with drives for its vertical and horizontal movement and rotation in the horizontal plane, while in the tool shelves from the side of the additional vertical guide rod additional sockets are made for accommodating tools with unidirectional vertical orientation of the shanks, and equipped with ring guides with carriages with a drive for moving them along the guides, and An integral vertical guide rod is fixed in the aforementioned carriages with the possibility of joint movement with them, moreover, part of the tool shelves are closed and the rest form a window for transmitting tools by means of the said manipulator hands.

Images