CN2931088Y

CN2931088Y - Overhead hydraulic cylinder type four-column pressing machine

Info

Publication number: CN2931088Y
Application number: CN 200620103149
Authority: CN
Inventors: 郑良才; 徐柏荣; 谢文杰; 郭文斌
Original assignee: 郑良才
Priority date: 2006-04-28
Filing date: 2006-04-28
Publication date: 2007-08-08
Anticipated expiration: 2016-04-28

Abstract

The utility model relates to a top-mounted oil cylinder type four column press, a base of which is arranged fixedly with the peripheral columns to structure the press frame, an upper horizontal beam is fixed with a crank shaft which is connected with a sliding block through a connection rod, the base is provided with an operation table, a lower mold is arranged on the operation table, which is corresponding to an upper mold arranged on the sliding block, the upper end of the column is connected with a piston rod of the oil cylinder, the upper section of the upper horizontal beam is fixed on the oil cylinder body while the middle section is covered on the column, the lower section of the upper horizontal beam is limited by an adjustment nut covered on the column. The utility model has the advantages of that the upper horizontal beam is connected with the oil cylinder, the pressure of the sliding block can be adjusted through the oil cylinder, therefore, the overload on the sliding block can be prevented so as to avoid the damage of mold and equipment in which the lifecycle of equipment and the mold can be elongated; meanwhile, the upper horizontal beam can be lifted by the oil cylinder to a certain extent, and the upper mold height can be lifted for easy observation and mold repairing; furthermore, the close distance between the sliding block and the operation table can be adjusted through changing the limit nut on the column.

Description

Preset hydro-cylinder type four column press

Technical field

The utility model relates to a kind of forcing press, particularly a kind of preset hydro-cylinder type four column press.

Background technology

Existing forcing press as shown in Figure 1, its base 13 is fixed the frameworks that constitute forcing presses with the column 10 around it, working plate 12 is set on the base 13, place counterdie 11 on the working plate 12, corresponding with the patrix 9 on being arranged on slide block 7, fixing entablature 3 on the column, entablature 3 is fixed the bent axle 4 on it, bent axle 4 is connected with slide block 7 by connecting rod 5 and drives slide block, column 10 limits are provided with guide rail 8, slide block 7 moves up and down along guide rail 8, also has the adjusting nut 16 of adjusting slider and entablature distance on the connecting rod.Because the entablature 3 of forcing press is whole with base 13 or fixedlys connected; therefore the adjustment of slide block 7 positions is to realize by the position of regulating the nut 16 on the connecting rod 5; regulate with this method; labour intensity is big; operation inconvenience, precision is not high yet, and does not have overload protection function; if the improper meeting in slide position directly is stamped on the bed die, influence the service life of mould and equipment.

Summary of the invention

Technical problem to be solved in the utility model is to overcome the above-mentioned defective of prior art and a kind of preset hydro-cylinder type four column press is provided, and makes its position that can conveniently adjust mould, prevents the generation of forcing press overload.

The utility model solves the problems of the technologies described above the technical scheme that is adopted:

Preset hydro-cylinder type four column press, its base and the fixing framework that constitutes forcing press of column all around, fixed crankshaft on the entablature, bent axle is connected with slide block by connecting rod, and working plate is set on the base, place counterdie on the working plate, corresponding with the patrix on being arranged on slide block, be characterised in that: described column upper end is connected with the piston rod of oil cylinder, and entablature top is fixed on the cylinder body, the middle part is enclosed within on the column, and the bottom is spacing by the adjusting nut that is enclosed within on the column.

Compared with prior art, advantage of the present utility model is: adopt entablature to be connected with oil cylinder, adjust the pressure of slide block by oil cylinder, so can prevent the generation of limited slip block overload, avoid mold damage and equipment, thereby prolong the service life of equipment and mold.Simultaneously, by oil cylinder, lifting entablature in a big way, thus promote the patrix height, facilitate like this and observe and the maintenance mould; By changing the stop nut on the column, just can realize the adjustment of slide block and press bench plate closing height in addition.

Description of drawings

The structural representation of the existing forcing press of Fig. 1;

Fig. 2 is a structural representation of the present utility model.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As shown in Figure 2, preset hydro-cylinder type four column press, around its base 3 four columns 10 are set, column 10 upper ends are connected with the piston rod 2 of oil cylinder, and entablature 3 is connected with cylinder body 1, the middle part of entablature 3 is enclosed within on the column 10, the bottom is spacing by the adjustment nut 6 that is connected column 10, column 10 side fixed guides 8, and slide block 7 moves up and down along guide rail 8, slide block 7 is linked to each other with bent axle 4 by connecting rod 5, and bent axle 4 is fixed on the entablature 3.Fixing mold 9 below the slide block, relative with bed die 11 on being fixed on workbench 12, workbench 12 is fixed on the base 13.

Above-mentioned piston rod 2, column 10 are threaded with base 13 usefulness, are easy for installation and removal like this.

Above-mentioned forcing press is under oil cylinder 2 effects, and entablature 3 drives slide block 7 along column 10 and moves up and down in overall along the guide rail 8 on the column.Adjusting nut 6 can adjusting slider 7 and the spacing of working plate 12, and plays entablature 3 descending positioning actions.

During operate as normal, regulate and adjust nut 6, when making the bent axle 4 that is fixed on the entablature 3 be in lower dead point position, patrix 9 counterdies 11 are just closed, regulate oil cylinder 2 cavity of resorption oil circuit pressure greater than stamping press with place on the slide block 7 and put all and the weight of bed die associated components on the entablature 3, at this moment, the logical fuel tank in oil cylinder epicoele road.

If stamping press is excessive during work, the pressure oil of oil cylinder cavity of resorption is at hydraulic system effect underflow oil sump tank, and is up thereby entablature 3 breaks away from adjustment nut 6, patrix can not run into counterdie, even break counterdie, thereby realize hydraulic pressure overload protective.

During machine works, the stamping press size is controlled by the oil pressure of overhead oil cylinder cavity of resorption, in the height adjustment range that machine is demarcated, adjusts the nut upper-lower position by regulating, and satisfies the required shut height of mould, and bigger die change space is arranged.

Need repairing or when adjusting mould, hydraulic system is at four oil cylinders, 2 epicoele injection pressure oil, 1 of cylinder body moves up, driving the entablature 3 that connects on it moves up, driving slide block 6 by bent axle 4 and connecting rod 5 rises overally along guide rail 8, make up and down mould away from, make things convenient for inspection, repairing and the adjustment of mould.

Claims

1, preset hydro-cylinder type four column press, its base and the fixing framework that constitutes forcing press of column all around, fixed crankshaft on the entablature, bent axle is connected with slide block by connecting rod, and working plate is set on the base, place counterdie on the working plate, corresponding with the patrix on being arranged on slide block, be characterised in that: described column upper end is connected with the piston rod of oil cylinder, and entablature top is fixed on the cylinder body, the middle part is enclosed within on the column, and the bottom is spacing by the adjusting nut that is enclosed within on the column.

2, preset hydro-cylinder type four column press as claimed in claim 1 is characterized in that: described piston rod, column and base are with being threaded.