Hydraulic press with unloading of base components

FIELD: mechanical engineering.

SUBSTANCE: invention is attributed to equipment for material pressure-shaping. Hydraulic press comprises frame, moving transverse member, beam, upper and lower tools. The frame is made as top and bottom cross-members. Cross-members are interconnected by pillars. The press is fitted with additional hydraulic press. Additional press comprises upper transverse members, tie rods, cylinders with hydraulic fluid, pillars and lower transverse members. Additional press is mounted with possibility to transfer its force to moving transverse member via tie rods and upper transverse members. Furthermore additional press force transfer to lower tool is provided using pillars of additional press, lower transverse member and pins.

EFFECT: press dimensions reduction and durability improvement is provided.

8 dwg

 

The invention relates to mechanical engineering and can be used in the design of new hydraulic presses, as well as for upgrading existing equipment.

Known hydraulic presses made with the lower cylinders and movable frames (Afellow. Bavassano. Wpinc. Forging hydraulic presses. - M.: Mashinostroenie, 1986, s.43). The cylinders rest on the bottom base, the plungers their pressure on the cross bar of the movable frame. Press with movable bed have a lower height above the floor of the shop.

Also known hydraulic presses, where the circuit with the movable frame applied in combination with conventional fixed bed (Afellow. Bavassano. Wpinc. Forging hydraulic presses. - M.: Mashinostroenie, 1986, s.43). The press has two operating cylinder, one of which is mounted to the upper cross member fixed frame, and the other relies on its lower cross member, the plunger it presses on the lower crossbar of the moving frame. This design concept is usually referred to as "tandem". Press constructed according to this scheme, have smaller dimensions in the plan.

The disadvantage of hydraulic presses is the need to have a great podbresova space to accommodate the lower cross bar of the movable frame. In addition, in the scheme of "tandem" lower cross member fixed to one hundred the ins takes the load from the total effort in the upper and lower cylinders.

The technical result of the invention is to remedy these disadvantages by replacing the moving frame additional gidravlicheskiy pressure, which is embedded in the main. This additional hydraulic cylinders of the press are positioned between the columns of the main hydraulic press. The additional effort of a hydraulic press is transmitted to the movable yoke and is connected directly to the lower tool. Due to this, it is possible to reduce the dimensions of a hydraulic press in height, to unload the lower crossbar of the frame and increase its technological effort.

The offered press is depicted in figure 1, 2, 3, 4, 5, 6, 7, 8, which figure 1 is a General view of the press, in figure 2, a side view, figure 3 is a section along a-A. figure 4, 5, 6, 7 are shown as additional press can be integrated in already existing.

The main press consists of the upper cross member 1, the lower cross member 2, columns 3, movable beam 4, the main cylinder 5, the beam 6, the lower tool 7 and the upper tool 8. The lower cross member 2 and the upper cross member 1 are connected by columns 3 and constitute the bench press. Additional press consists of the upper beam 9, the rods 10, a cylinder 11, columns 12, the lower beam 13, pin 14, the plunger 15. In the piston portion of the plunger is made cylinder return stroke with the plunger 16.

Work side hydraulic the ski press is as follows.

After the working fluid in the main cylinder 5 of their plungers move the movable yoke 4, which, in turn, through the beam 6 transmits the force to the upper tool 8.

After feeding the working fluid into the cylinders 11 additional hydraulic press they move down and thrust through 10 and the upper beam 9 transmit the force on the movable yoke 4, which, in turn, through the beam 6 transmits the force to the upper tool 8. From the bottom through the column 12, a yoke 13 and pins 14 force closes directly on the lower tool 7. The return of the movable beam 4 is returnable cylinder.

As the application of this scheme does not require a large podpisanego space, it is possible to significantly reduce the dimensions of the press. The full force of a hydraulic press is only movable head plate, beam and the lower tool. Unloading parts of the bed can also help to reduce their size and increase durability. The greatest economic benefit from the use of this scheme can be obtained by upgrading existing hydraulic presses to increase work effort. By embedding additional hydraulic presses, similar to that shown in figure 3, it is possible to increase the operating force of the existing equipment, without overloading the base part.

Hydraulic press, aderrasi a frame in the form of upper and lower crossbars, interconnected columns, a movable yoke, a beam, upper and lower tools, characterized in that it is equipped with an additional hydraulic pressure, which contains the top of the bar, rods, cylinders with the working fluid, the column and the lower crossbeam and installed with the possibility of transferring his efforts the walking beam by means of the rods and the upper traverse and lower the tool by means of additional columns hydraulic press, the lower head plate and pins.



 

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