SU1288017A1 - Apparatus for automatic change of polygonal disposable cutting bits - Google Patents

Description

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The invention relates to a machine tool industry, relates to loading and unloading devices for automatic change of the cutting tool, and can be used mainly on multi-spindle automatic lathes (MTA).

The aim of the invention is to simplify the design of the device and reduce the time for changing the multi-faceted non-swiveling plates due to the reorientation of the edges of the cutting plates along the shortest path.

1 shows a device for the automatic change of plates, a general view, a longitudinal section; figure 2 is the same, top view.

The device dp of automatic change of multifaceted non-reversible cutting plates consists of a body 1 in which a drum type tool magazine is located, a tool turning mechanism

gazina, a lot of movement mechanism

face plate, the drive mechanism in the form of a hydraulic cylinder 2, performing working movements.

The device body 1 is mounted on a support 3 of a lathe, for example, a turning multi-spindle automatic machine, next to the tool holder 4, in which the tool body is fixed. The drum-type tool magazine is designed for placing and reorienting multi-faceted plates 5 and consists of a rotary body 6 on the axis 7, which is rotated by an overrunning clutch 8 mounted on the magazine case, the outer ring of which 9 is made as a gear and enters into engagement with the toothed rack 10, which is connected to the driving cylinder 2. The central disk 11 is located on the axis of the tool magazine, and is located in constant engagement with the disks 12. The latter are made with slots 13 through The plates are mounted on axles 14 placed in the case of the tool magazine. The plate movement mechanism consists of a satellite part 15 installed in each plate and a gripper 16 connected via a yoke 17 with a rod of a driving hydraulic cylinder 2. The plates 5 in the working position are fixed to the tool body with the help of tacks 18

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five

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five

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The device works in the following way.

The signal of the controlling authority (not shown) or the operator, who determined the need for changing the insert, is interrupted, the worker and; the machine tool and the caliper 3 are stopped in the initial position. Stopping the caliper in the rest position (far right) is the signal for starting the device.

At the same time, the rod of the driving cylinder 2, moving to the left in the plane of the drawing, moves the gripper 16 through the yoke 17, which in the leftmost position captures the satellite part 15 with the plate 5. At the same time, the rail 10 moves with the rod of the driving cylinder 2, not in contact with the outer ring 9 overrunning clutch 8, as in this area of the rail 10 is made understatement.

The signal of the follower, which fixes the left position of the rod of the driving cylinder 2 and the claw 16, commands the release of the sticking pin 18 and the stroke of the rod of the hydraulic cylinder and the claw 16 to the right. In this case, together with the gripper 16, the cutting plate 5 moves to the disk 11 until it stops, then with the further course of the hydraulic rod 2, the gripper moves further and the plate 5 is released from the latter and falls into the corresponding slot of the disk 12. At this moment the portion of the rail 10 with teeth enters into engagement with the outer ring 9 of the overrunning clutch 8, with further movement of the rail to the right, the latter through the overrunning clutch rotates the housing of the tool magazine 6 by the angle required to install the new plate with the satellite part 15 to its original position to move it to the tool holder, depending on the number of plates in the tool magazine. When the tool magazine is rotated, the disks 12 with plates 5 in it turn not only around the tool magazine axis 7, but due to their adhesion with the fixed disk 11 - and around their axes 14, so that for each revolution of the tool magazine they make a turn through the angle required to install the plate into the tool holder 4 each time

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new edge. The angle of rotation of the discs 12 with sockets around its axis at one revolution of the magazine is determined from a ratio of 360 (1 + 1: n), where n is the number of working edges of the cutting bar.

To move a new plate (or a plate with a new edge) from the tool magazine 6 to the tool holder according to the signal of the tracking device fixing the right position of the rod of the driving hydraulic cylinder 17 .4

2, a command is received to move 16 to the left. At the same time, the next grip captures the new plate 5 and moves it to the extreme left position, where the plate 5 is attached to the tool body.

The sensor signal (not shown), fixing the fixing plate 5,

- the rod of the driving cylinder 2, together with the gripper 16 and the rail 10, moves to the right, and a command is given to start the work of the support 3.

Editor V.Ivanova

Compiled by S. Kornyushenko Tehred M. Khodanych

Order 7753/13 Circulation 785 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st., 4

q) uz.Z

Proofreader S. Shekmar

Claims (1)

DEVICE FOR AUTOMATIC CHANGE OF MULTIPRIPTED NON-TRANSFERABLE PLATES, containing a movable tool magazine with slots for plates mounted on the base, and a mechanical arm for moving the plates from the store to the working area, which is peeled off in order to simplify the design and reduce the time of changing the plates , the store is made in the form of a housing mounted on the base with the possibility of rotation on a fixed axis, placed on the housing of the store with the possibility of rotation of the disks with slots for plates and center a disk, rigidly connected with the axis, and the mechanical arm is mounted on the base with the possibility of longitudinal movement and rigidly connected with an additional gear rack, while the case of the store is connected by means of an overrunning clutch with a gear wheel engaged with said gear, and the discs with sockets are installed on the case of the store with the possibility of their interaction with the central disk. figure 1