SU597568A1 - Piston-free press - Google Patents

Description

The invention is about processing metals by pressure. A pressless press is known that contains a movable plate with a device for lifting it mounted in a frame - a closed container with liquid placed between the upper cross member of the frame and the movable plate, as well as a table installed on the lower crossbar of the frame. The force on the movable plate is created by injecting the working fluid into a closed container. However, the machining of parts on this device is carried out only by one-sided pressing. In order to expand technological capabilities, the proposed press is equipped with a movable plate retainer and a movable rod with elastic sealing elements, while the movable plate retainer is mounted on the upper crossbar of the frame, the movable rod is installed on the lower crossbar of the frame and connected to it with stop plastic mounted on the end of the rolling rod. The drawing shows the proposed press. The press contains a frame 1, in which the guides 2 assembled a movable plate 3 connected to the upper crossbar 4 and the flange 5 by elastic sealing elements 6-8, thus forming the working stroke capacity 9 and 1O and the return stroke capacity 11. On the upper crossbar 4 a retainer 12 is fixed, which interacts with the tail 13 of the movable plate 3. On the movable plate 3, the upper part of the tool 14 is fastened. 21, thus forming the capacity of the working stroke 22 and 23, as well as the capacity of the return stroke 24. The lower part of the tool 25 is fixed to the movable rod 17. The working fluid is supplied to the containers from the pressure source (not shown in the drawing) through the distributor 26 .

The tanks 9, lO, 11, 22, 23 and 24 with the help of additional sealing elements can be divided into separate sector tanks in order to regulate the pressure in them when an eccentric load on the tools occurs.

The press works as follows. in a way. The reciprocating movement of the movable plate 3 is carried out by supplying fluid through the switchgear 26 in the tank 9 and 10 or into the tank 11. When supplying the working fluid in the tanks 9 and 10, the tank 11 is connected to the drain line, and vice versa, when the working fluid is supplied liquids in the container 11 of the container 8 and 10 are connected to the drain. During the reciprocating movement of the movable plate 3, the latch 12 is unlocked.

The reciprocating movement of the movable rod 17 is carried out by supplying fluid through the switchgear 26 in the tank 22 and 23 or into the tank 24. When the fluid is supplied in the tank 22 and 23, the tank 24 is connected to. By contrast, when the liquid is supplied to the container 24, the containers 22 and 23 are connected to the drain.

On the press, simultaneous simultaneous movement of the movable plate 3 and the movable rod 17 can be carried out. To this end, the working fluid is simultaneously fed into the containers 9, 1O, 22 and 23, and the capacitances 11 and 24 are connected to the drain.

For operation in the molotov mode, the movable plate 3 is fixed at the extreme

the upper position with a retainer 1: 2, under the movable rod 17 is installed in the cr 1st lower position, and the tank C is connected to the drain. After pivoting with retainer 12, the movable plate 3 under the weight of its own weight falls and stamps the product. The lifting of the movable plate 3 is carried out when the fluid is supplied to the container 11 (Operation in the molten mode can be carried out with the movable rod 17 raised. To this end, liquid is supplied to the container 22 and 2, and after the movable rod 17 is set to the required position of the container 22 and 23 is locked, and the raising and lowering of the movable plate 3 is carried out in the above sequence.

Formula of invention

A pistonless press containing a movable plate mounted in the frame with a device for lifting it, a closed container with liquid placed between the upper crossbar: the frame and the movable plate, as well as a table mounted on the lower crossbar of the frame, oi is ti the purpose of expanding technological capabilities, it is equipped with a movable plate retainer and a movable STOCK with elastic sealing elements, while the movable plate retainer is mounted on the upper frame cross member the movable rod is mounted on the lower cross section frame and is connected with it by elastic sealing elements, and the table is fixed on the end of the movable rod.