CN202540772U - Multi-station four-column type oil press - Google Patents

Abstract

The utility model discloses a multistation four-column type hydraulic press, it includes and constitutes the frame by entablature, bottom end rail and four stands, is equipped with the shift table on four stands of frame, and its improvement lies in: the upper beam is provided with an upper die holder, the rack is provided with an upper die holder driving device capable of driving the upper die holder to move left and right in the horizontal direction, and the upper die holder is fixed with at least two upper dies; a main oil cylinder is fixedly arranged on the lower cross beam and connected to the movable workbench; a lower die base is arranged on the movable workbench, and a lower die is fixed on the lower die base; and an ejection cylinder for ejecting the mold in the lower mold is arranged at the bottom of the movable workbench. The beneficial effects are that: the utility model discloses the extrusion of work piece blank is accomplished in the extrusion of the different degree of depth many times of accessible, and its shaping work piece precision is high, can satisfy higher requirement, and simultaneously, extrusion pressure will be little for an extrusion pressure at every turn in the many times extrusion process, reduces harm etc. to the mould.

Description

Multi-station four-column hydraulic press

【Technical field】

The utility model relates to a hydraulic press, in particular to a multi-station four-column hydraulic press.

【Background technique】

The hydraulic press is a kind of special hydraulic oil as the working medium and the hydraulic pump as the power source. The force of the pump makes the hydraulic oil enter the cylinder/piston through the hydraulic pipeline, and then there are several sets of seals in the cylinder/piston that cooperate with each other. , The seals in different positions are different, but they all play a role in sealing, so that the hydraulic oil cannot leak. Finally, through the one-way valve, the hydraulic oil is circulated in the oil tank to make the oil cylinder/piston circulate to do work, so as to complete certain mechanical actions as a kind of machinery of productivity.

The hydraulic press generally consists of a frame, a hydraulic cylinder, a movable beam, a guide mechanism, and an ejector mechanism. In the seat, the mold base is fixed on the support. The hydraulic cylinder piston moves the movable beam to move up and down, and drives the upper mold to extrude the workpiece blank placed in the lower mold to produce formed products; the guiding mechanism is used for vertical guidance of the movable beam moving up and down. , to ensure the accurate clamping of the upper and lower molds, thereby ensuring the quality of the workpiece; the ejector mechanism is an ejection hydraulic cylinder installed at the lower part of the support, and the piston of the ejection hydraulic cylinder is aligned with the bottom of the workpiece. The downward movement of the hydraulic cylinder piston drives the upper mold After completing the interaction with the lower mold to extrude the workpiece blank, the upper mold is driven upward to separate from the workpiece and stops after reaching the stroke, and then the hydraulic cylinder works to push the workpiece out of the lower mold to complete an extrusion molding process. The guiding mechanism adopts four-corner settings Four uprights, the structure in which the movable beam is set on the four uprights slides, and the guidance is realized through the four uprights. However, the hydraulic press of this structure in the prior art uses a single upper die for one-time extrusion molding. This one-time extrusion molding process cannot meet some products with high precision requirements. In addition, this one-time extrusion, its pressure Larger, it is easy to cause damage to structures such as upper and lower molds.

【Content of utility model】

The purpose of the utility model is to effectively overcome the above technical deficiencies and provide a multi-station four-column hydraulic press.

The technical solution of the present utility model is realized in the following way: it includes a frame composed of an upper beam, a lower beam and four columns, and a mobile workbench is arranged on the four columns of the frame. There is an upper mold base, and an upper mold base driving device that can drive the upper mold base to move left and right in the horizontal direction is arranged on the frame, and at least two upper molds are fixed on the upper mold base; The main oil cylinder that drives the mobile worktable to move up and down is connected to the mobile workbench; the mobile workbench is provided with a lower mold base, and the lower mold base is fixed with a lower mold; the bottom of the mobile workbench is installed with a Inside the ejection cylinder the mold is ejected.

In the above structure, the driving device of the upper mold base includes a stepping motor and a lead screw, the output shaft of the stepping motor is connected with a driving wheel, one end of the leading screw is connected with a driven wheel, and the driving wheel and the driven wheel are connected by a transmission belt. , the screw rod is threadedly connected with the upper die base.

In the above structure, the two sides of the upper beam are respectively provided with a left shield and a right shield, the stepping motor is arranged in the right shield, the right end of the lead screw is positioned with the right shield by a positioning piece, and the left shield A fixing piece is arranged inside, and the left end of the lead screw is axially fixed on the fixing piece.

The beneficial effect of the utility model is that: the utility model sets a plurality of upper molds on the upper mold base, and the depth of each upper mold is different, and cooperates with a driving device capable of driving the upper mold base to move, so that the one-time molding process can be realized. It is converted into a multiple extrusion molding process. Specifically, start the hydraulic pump, and the stepping motor drives the upper die base and upper die to move to the position corresponding to the lower die according to the system setting program. The main oil cylinder drives the mobile table to move up quickly to complete the first Once the extrusion is completed, the mobile workbench returns automatically, and the stepping motor drives the next upper die on the upper die base to move to the position corresponding to the lower die (the sequence of the upper die movement is set by the program), and the moving air The workbench goes up quickly again to carry out the second extrusion. This cycle completes the extrusion of each upper mold on the lower mold and upper mold base. So far, the extrusion molding of the workpiece blank is completed through multiple extrusions of different depths. The precision of the workpiece is high, which can meet higher requirements. At the same time, the pressure of each extrusion in the multiple extrusion process is smaller than that of one extrusion, which reduces the damage to the mold.

【Description of drawings】

Fig. 1 is the front view of the utility model

Fig. 2 is the left side view of the utility model

In the figure: hydraulic power system 1; fuel tank 2; lower beam 3; upper beam 4; column 5; mobile workbench 6; upper mold base 7; upper mold 8; main oil cylinder 9; lower mold base 10; Lead screw 12; left shield 13; right shield 14; lower die 15; control cabinet 16.

【Detailed ways】

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Referring to Fig. 1 and Fig. 2, the utility model is a multi-station four-column hydraulic press, which includes a frame composed of an upper beam 4, a lower beam 3 and four columns 5, and an oil tank 2 and hydraulic pressure are arranged on the frame. Power system 1, hydraulic power system 1 includes hydraulic pump, low pressure control system, electric motor and various hydraulic valves, etc., and a control cabinet 16 is arranged on one side of the frame, and mechanical energy is converted into hydraulic pressure through hydraulic pump, oil cylinder and various hydraulic valves. can, and output through the hydraulic pipeline, the four columns 5 of the frame are provided with a mobile workbench 6, the upper beam 4 is provided with an upper mold base 7, and the frame is provided with a driveable upper mold base 7 in the horizontal direction The upper mold base driving device that moves left and right, at least two upper molds 8 are fixed on the upper mold base 7, the number of upper molds 8 is set according to the specific process requirements, and the lower beam 3 is fixed with a 6 The main oil cylinder 9 that moves up and down, the main oil cylinder 9 is connected to the mobile workbench 6, the lower mold base 10 is arranged on the said mobile workbench 6, and the lower mold base 10 is fixed with the lower mold 15; the bottom of the mobile workbench 6 is installed usefully In the ejection cylinder (not shown in the figure) that ejects the mold in the lower mold 15, the mobile worktable 6 drives the lower mold 15 to move upward rapidly under the drive of the main oil cylinder 9. When the upward extrusion is completed, the main oil cylinder 15 Pressure relief, mobile workbench 6 returns automatically.

The upper mold base driving device comprises a stepping motor 11 and a leading screw 12, a driving wheel is connected on the output shaft of the stepping motor 11, and a driven wheel is connected to one end of the leading screw 12, and the driving wheel and the driven wheel are connected by a transmission belt. The screw rod 12 is threadedly connected with the upper die base 7 to realize the transmission, and the screw rod 12 is driven to rotate through the stepping motor 11, and the upper die base 7 screwed with the lead screw 12 moves left and right in the horizontal direction, thereby realizing the upper die 8 mobile positioning. Both sides of the upper beam 4 are respectively provided with a left guard 13 and a right guard 14, the stepper motor 11 is arranged in the right guard 14, the right end of the leading screw 12 is positioned with the right guard 14 by a positioning piece, and the left guard A fixing part is arranged inside the cover 13, and the left end of the lead screw 12 is axially fixed on the fixing part.

To sum up, the utility model sets a plurality of upper molds 8 on the upper mold base 7, and the depth of each upper mold 8 is different, and cooperates with a driving device capable of driving the upper mold base 7 to move, so that the one-time molding process can be realized. Extrusion into multiple extrusion molding process, specifically, start the hydraulic pump, the stepper motor 11 drives the upper mold 8 of the upper mold base 7 to move to the position corresponding to the lower mold 15 according to the system setting program, and the main cylinder 9 drives the mobile worktable 6 goes up quickly, completes the first extrusion, the extrusion is completed, the mobile table 6 automatically returns, and the stepping motor 11 drives the next upper die 8 on the upper die base 7 to move to the position corresponding to the lower die 15 (the upper die 8 The order of movement is set by the program), the mobile workbench 6 goes up quickly again, and performs the second extrusion, and this cycle completes the extrusion of each upper mold 8 on the lower mold 15 and upper mold base 7, and finally the ejection cylinder The extruded workpiece is ejected, so far, the extrusion molding of the workpiece blank is completed through multiple extrusions of different depths, and the precision of the formed workpiece is high, which can meet higher requirements. At the same time, each The pressure of extrusion is smaller than the pressure of one extrusion, which reduces the damage to the mold and so on.

The above descriptions are only preferred embodiments of the present utility model, and the above specific embodiments do not limit the present utility model. Within the scope of the technical ideas of the present utility model, various deformations and modifications can occur, and any retouching, modification or equivalent replacement made by those skilled in the art according to the above descriptions all belong to the protection scope of the present utility model.

Claims (3)

1. multistation four-column type hydraulic press; It comprises by entablature, sill and four root posts forms frame; Four root posts of frame are provided with travelling table; It is characterized in that: said entablature is provided with upper bolster, and frame is provided with one can drive the upper bolster upper bolster drive unit of move left and right in the horizontal direction, is fixed with at least two patrixes on the said upper bolster; Be installed with on the said sill and be used to drive the master cylinder that travelling table moves up and down, master cylinder is connected in travelling table; Said travelling table is provided with die shoe, is fixed with counterdie on the die shoe; Travelling table bottom is equipped with and is used for liftout tank that the mould in the counterdie is ejected.

2. multistation four-column type hydraulic press according to claim 1; It is characterized in that: said upper bolster drive unit comprises stepper motor and leading screw; Connect a driving wheel on the output shaft of stepper motor; One end of leading screw connects a driven pulley, is connected through driving-belt between driving wheel and the driven pulley, and said screw mandrel is threaded with upper bolster.

3. multistation four-column type hydraulic press according to claim 2; It is characterized in that: the both sides of said entablature are respectively equipped with left guard shield and right guard shield; Said stepper motor is arranged in the right guard shield; The right-hand member of leading screw is provided with a fixture through keeper and right guard shield location in the left guard shield, the left end of leading screw is axially fixed on the fixture.

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