RU2818549C1 - Device for fixation of automatic coupler on milling machine - Google Patents

Abstract

FIELD: machine tool industry.

SUBSTANCE: invention can be used for fastening of automatic coupler of railway car during milling of its surface. Device comprises a plate, on the upper side of which there is a rotary plate with an automatic coupling locking mechanism, a rotary plate turning mechanism located on the plate, which includes a geared motor and a turning locking device, and a control unit connected to the geared motor by means of a power cable. At that, locking mechanism is made in form of housing with recess, repeating shape of head part of automatic coupling, and located on the body of the main support—at its end on the side of the recess—at least two supplied supports with the possibility of adjustable extension from the body and interaction with the lower side of the automatic coupling, upper clamp—above said recess with possibility of interaction with upper side of automatic coupling, at least one lateral support—from one of lateral sides of housing, side clamp—on the opposite side of the housing and a tail support with a tail clamp and a tail side clamp on the housing end opposite to the recess with the possibility of interaction with the tail part of the automatic coupling.

EFFECT: higher efficiency of automatic coupling processing.

3 cl, 2 dwg

Description

The invention relates to the field of equipment for milling machines with a program control device and can be used to secure the automatic coupler of a railway car when milling its surfaces.

Modern standards for the maintenance and repair of railway rolling stock set increased requirements for the accuracy of processing of its component parts, while the surfaces of the automatic coupler require precise relative position, and therefore their processing should be carried out from one installation.

A rotary device for fastening parts of complex shape is known, RF utility model patent No. 144600 (MPK B23Q 3/06, dated April 29, 2014), containing a housing on which it can be rotated and fixed by means of a latch mounted on the housing in a given angular position a chuck is installed, equipped with elements for installing and fixing the part to be processed in a given position, while the chuck is installed on a shaft mounted with the possibility of rotation in the housing, a threaded shank and a threaded hole are made on the shaft into which a screw is screwed, a clamp is installed on the screw, placed in the cavity of the cartridge and intended for fixing the part.

A device is known for fixing a part on a milling machine according to patent KR 20220038193 A, B23Q 16/02, 03/28/2022, containing a housing having a first connecting part made in the internal vertical direction, and a second connecting part made horizontally under the first connecting part; a rotary table coupled through a first housing connecting piece and having a plurality of cam followers rotatable on its lower surface at mutual intervals around its circumference; and driving means including a camshaft having a cam connected through a second housing connecting piece, a driven gear connected to one end of the camshaft, a drive gear connected to the driven gear, and an engine connected to the drive gear for rotation.

The disadvantages of these devices are the low productivity of automatic coupling processing due to a decrease in processing accuracy under proper load caused by increased exposure to vibration, due to the unification of fastening for various workpieces, as well as the impossibility of automated processing of interdependent surfaces.

The technical result is to increase the milling productivity of the automatic coupler.

The specified technical result is achieved due to the fact that a device for fixing the automatic coupler on a milling machine, containing a plate, on the upper side of which there is a rotating plate with a mechanism for fixing the automatic coupler, a mechanism for rotating the rotary plate located on the plate, including a gear motor and a rotation locking device , and a control unit connected to the gear motor using a power cable, characterized in that the automatic coupler fixing mechanism is made in the form of a housing with a recess that follows the shape of the head part of the automatic coupler, and located on the main support body - at its end from the side of the recess, along at least two input supports - with the possibility of adjustable extension from the body and interaction with the lower side of the automatic coupler, an upper clamp - above the mentioned recess with the possibility of interaction with the upper side of the automatic coupler, at least one side support - with one of the sides of the body, a side clamp - on the opposite side of the housing and the tail support with a tail clamp and a tail side clamp - on the end of the housing opposite from the recess with the possibility of interacting with the tail part of the automatic coupler.

In fig. 1 and fig. 2 shows a device for fixing the automatic coupler, where:

1 - plate

2 - rotary plate

3 - bearing

4 - disc springs

5 - T-bolt

6 - hydraulic cylinder

7 - shock-absorbing support

8 - gear motor

9 - gear wheel

10 - body

11 - end support

12 - main support

13 - upper clamp

14-tail prop

15 - tail clamp

16 - side tail clamp

17 - side support

18 - side clamp

19 - supplied support

20 - flywheel

The device for fixing the automatic coupler contains a plate 1, on the upper side of which there is a rotary plate 2, which has the ability to rotate around its axis. Bearing 3 is used as an axial support. The rotation mechanism consists of a gear motor 8, which, through gear wheels 9, has the ability to rotate the rotary plate 2, and rotation locking devices made in the form of hydraulic cylinders 6 connected to T-bolts 5, the heads of which located in a circular T-shaped groove on the plate 1, and their ends are connected to the pistons of the hydraulic cylinders, which are located with the ability to interact with disc springs 4 installed in the rotary plate 2 coaxially with the pistons.

The gear motor 8 is connected via a power cable to the device control unit (not shown in the figure), which is interfaced with the machine program control device via a digital interface. To facilitate rotation, plate 1 is equipped with shock-absorbing supports 7, made of a spring and a ball located in a metal sleeve.

On the upper surface of the rotary plate 2, a housing 10 is fixedly fixed with mechanisms for fixing the automatic coupler and located on the body of the main support 12 - at its end from the side of the recess, at least two supplied supports 19 - with the possibility of adjustable extension from the housing and interaction with the lower side of the automatic coupler , the upper clamp 13 - above the mentioned recess with the ability to interact with the upper side of the automatic coupler, at least one side support 17 - on one of the sides of the body, the side clamp 18 - on the opposite side of the body and the tail support 14 with the tail clamp 15 and the tail side clamp 16 - at the end of the housing opposite from the recess with the possibility of interaction with the tail part of the automatic coupler.

The automatic coupler is fixed as follows.

The device is attached to the milling machine table using T-bolts. Using a lifting mechanism, the automatic coupler body is lowered into the device, pressed against the end support 11, followed by installation on the main support 12 and the input supports 19, and the tail part of the automatic coupler on the tail support 14. To correctly locate the automatic coupler body, the flywheels of the input supports 20 set the required position of the product in two planes: longitudinal and transverse, adjusting the height of the supplied supports 19. After basing, using the side clamp 18, the body of the automatic coupler is pressed against the side supports 17, then finally clamped with the upper clamp 13, and using the tail clamp 15 and the side tail clamp 16, the tail part of the automatic coupler is pressed to the tail support 14.

The position is set as follows.

Since the machine’s memory contains a mathematical model of the machined surfaces of the automatic coupler with their dimensions and relative position with reference to the coordinate system, and when installing the automatic coupler into the fixture, it occupies a position that exactly corresponds to the position of the mathematical model, the machine control system knows exactly where all the machined surfaces are located in the workspace, taking into account the rotation of the device at various angles.

After fixing the automatic coupler body in the fixture, the machine operator starts the required processing cycle. In accordance with a given cycle, the machine program control system sets the necessary surface processing parameters and transmits them to the device control unit, which generates control commands for the rotation mechanism, installing the rotary plate 2 in the required position. During processing, by means of disc springs 4 and T-bolts 5, the rotary plate 2 is pressed against the plate 1, thereby blocking further movement. For subsequent rotation of the rotary plate 2, disc springs 4 are compressed by hydraulic cylinders 6, releasing the rotary plate 2 from blocking. During rotation, the weight of the rotary plate is unloaded with the help of shock-absorbing supports 7, facilitating rotation of the product.

Thus, the presence of such a mechanism for fixing the automatic coupler allows you to adjust and securely fasten the body of the automatic coupler in the fixation device, eliminating the impact of vibration of the product on the accuracy of processing, and in combination with the automatic rotation drive, coupled with the program control system of the machine, to increase the productivity of processing the surfaces of the automatic coupler.

Claims (3)

1. A device for fixing an automatic coupler on a milling machine, containing a plate on the upper side of which there is a rotating plate with a mechanism for fixing the automatic coupler, a mechanism for rotating the rotary plate located on the plate, including a gear motor and a rotation locking device, and a control unit connected to a gear motor using a power cable, characterized in that the mechanism for fixing the automatic coupler is made in the form of a housing with a recess that follows the shape of the head part of the automatic coupler, and located on the body of the main support - at its end from the side of the recess - at least two input supports with the possibility of adjustable extension from the body and interaction with the lower side of the automatic coupler, the upper clamp - above the mentioned recess with the possibility of interaction with the upper side of the automatic coupler, at least one side support - on one of the sides of the body, a side clamp - on the opposite side of the body and the tail supports with a tail clamp and a tail side clamp - at the end of the body opposite from the recess with the possibility of interaction with the tail part of the automatic coupler. 2. The device according to claim 1, characterized in that the rotation locking device is made in the form of hydraulic cylinders connected to T-shaped bolts, the heads of which are located in the corresponding T-shaped grooves on the plate, and their ends are connected to the pistons of the hydraulic cylinders, which are located with the ability to interact with disc springs installed in the rotating plate coaxially with the pistons. 3. The device according to claim 1, characterized in that the plate is equipped with shock-absorbing supports in the form of spring-loaded balls located in a metal sleeve on the side of the rotating plate.