CN207642089U - A kind of continuous drawing formula hydraulic drawing press - Google Patents

Abstract

The utility model discloses a continuous deep-drawing type drawing hydraulic machine, which comprises a workbench connected with a base, a mold lower mold is arranged on the workbench, and an upper movable plate that can be lifted and lowered is arranged above the workbench. The lower side of the upper movable plate is provided with a mold upper mold, and the lower part of the workbench is provided with a primary stretching thimble plate and a secondary stretching thimble piece in turn, and the mold lower mold includes a cylindrical lower outer mold, a cylindrical primary A stretching lower die, a columnar secondary stretching die, an annular primary stretching blank holder is arranged between the lower outer die and the primary stretching die, the primary stretching die and the secondary stretching There is a ring-shaped secondary stretching blank holder between the lower dies; the work that originally required two stretching hydraulic presses is concentrated on one stretching hydraulic press, so that the equipment is integrated and the production cost is saved.

Description

A continuous deep-drawing hydraulic press

technical field

The utility model relates to the technical field of automatic processing, in particular to a continuous deep drawing type drawing hydraulic machine.

Background technique

The stretching hydraulic press is the model with the most members in the hydraulic press family, and it is also called the universal stretching hydraulic press because of its wide range of applications. As the name suggests, the stretching hydraulic press is used for the stretch forming process of various shell parts, but it can also be used for straightening, press-fitting, packing, briquetting and pressing plates, etc. It can also be used for the pressing process of shaft parts, the calibration, crimping, and pressing process of profiles, and the bending, shaping, embossing, sleeve molding, and pressing processes of plastic materials such as stamping, bending, flanging, thin stretching, etc. It can also be engaged in calibration, press-fitting, pressing and molding of plastic products and powder products.

At present, the stretching hydraulic presses on the market can only achieve one stretching action on the parts in each working cycle. Due to the limitation of the drawing coefficient, many workpieces have to be drawn several times before they can be formed. In this way, in order to manufacture parts that can only be formed after N times of stretching, N stretching hydraulic presses must be equipped. For example, to manufacture a part that needs to be stretched twice before it can be finally formed, it is necessary to equip two stretching hydraulic machines: after the first stretching hydraulic machine completes the first stretching action, the semi-finished product is transferred to the second stretching machine A second stretch is performed on a hydraulic press.

Although our company has supplied various column-type multi-station conjoined hydraulic machines to the market in recent years (patent number: ZL201320060589.5), each stretching hydraulic machine at each station can only complete one stretching action at a time, which requires Workpieces that can only be formed by stretching in N steps need to be equipped with a stretching hydraulic press with N stations, which always makes people feel that the machine has too many stations and occupies too large an area, and has not yet achieved the maximum energy saving and material saving.

Contents of the invention

In order to overcome the deficiencies of the prior art, the utility model provides a continuous deep drawing type drawing hydraulic machine. The technical scheme that the utility model solves its technical problem adopts is:

A continuous deep-drawing hydraulic drawing machine, comprising a workbench connected to a base, a lower die of a mold is arranged on the workbench, and a liftable upper movable plate is arranged above the workbench, and the lower side of the upper movable plate A mold upper mold is provided;

The lower part of the mold is sequentially provided with a first-drawing thimble plate and a second-drawing thimble piece under the workbench. The lower die, an annular primary stretching blank holder is arranged between the lower outer die and the primary stretching die, and an annular secondary drawing ring is arranged between the primary stretching die and the secondary stretching die. Stretching edge ring, the primary stretching thimble plate is distributed with a primary stretching thimble to withstand the primary stretching edge ring, and the secondary stretching thimble is distributed with a secondary stretching thimble to withstand the primary stretching pressure. border;

The mold upper die includes a cylindrical primary stretching upper die and a cylindrical secondary stretching upper die, wherein the primary stretching upper die corresponds to the primary stretching blank holder, and the secondary stretching upper die The mold corresponds to the secondary stretching blank holder.

As a preferred item, an upper support plate and a lower support plate are respectively arranged on the upper and lower sides of the workbench, and the workbench and the upper support plate and the lower support plate are respectively connected by an upper support guide rod and a lower support plate guide rod. ;

The upper supporting guide rod is provided with an upper movable plate that can move up and down, the upper mold for one stretch is fixedly connected with the upper movable plate, and the upper supporting plate is provided with an upper side pull for driving the upper movable plate to move. Stretching piston cylinder and the upper central stretching piston cylinder for driving the secondary stretching upper die;

The primary stretching thimble plate is connected with the guide rod of the lower support plate and can move up and down along the guide rod of the lower support plate, and the lower support plate is provided with a lower side stretching piston cylinder for driving the movement of the primary stretching thimble plate And the lower side central stretching piston cylinder used to drive the activity of the secondary stretching thimble.

As a preferred option, the upper side stretching piston cylinder and the upper central stretching piston cylinder are hydraulic cylinders, and a liquid filling tank is arranged on the upper support plate.

The beneficial effect of the utility model is that the work that originally needs two stretching hydraulic presses is concentrated on one stretching hydraulic press, so that the equipment is integrated and the production cost is saved.

Description of drawings

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

Fig. 1 is a perspective view of the utility model;

Fig. 2 is the perspective view of stretching part in the utility model;

Fig. 3 is the front view of parts such as mold among the utility model;

Fig. 4 is a schematic diagram of the workflow of the utility model.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. In the ensuing description some specific details are referred to for a thorough understanding of the present invention. While the present invention can be practiced without these specific details, the description and representations herein can be used by those skilled in the art to more effectively convey the substance of their work to others skilled in the art. In addition, it should be noted that the terms "front side", "rear side", "left side", "right side", "upper side" and "lower side" used in the following description refer to directions in the drawings The words "inside" and "outside" respectively refer to directions toward or away from the geometric center of a specific component, and those skilled in the art who make simple and creative adjustments to the above directions should not be understood as technologies outside the scope of protection of this application.

Referring to Fig. 1, Fig. 2 and Fig. 3, a continuous drawing type drawing hydraulic machine includes a workbench 1 connected to a base 11, a mold lower die 2 is arranged on the workbench 1, and a There is a movable upper movable plate 3 which can be raised and lowered, and a mold upper mold 4 is arranged on the lower side of the upper movable plate 3 .

The bottom of the workbench 1 is provided with a primary stretching thimble plate 5 and a secondary stretching thimble piece 6 in turn, and the mold lower mold 2 includes a cylindrical lower outer mold 21, a cylindrical primary stretching lower mold 22, A columnar secondary stretching lower die 23, an annular primary stretching blank holder 24 is arranged between the lower outer die 21 and the primary stretching lower die 22, and the primary stretching lower die 22 and the secondary stretching An annular secondary stretching blank holder 25 is arranged between the lower dies 23, and primary stretching thimbles 51 are distributed on the primary stretching thimble plate 5 to withstand the primary stretching blankholder 24, and the secondary stretching Secondary stretching thimbles 61 are distributed on the thimble member 6 to withstand the primary stretching blank holder 24 .

The die upper die 4 includes a cylindrical primary stretching upper die 41 and a cylindrical secondary stretching upper die 42, wherein the primary stretching upper die 41 corresponds to the primary stretching blank holder 24, the The secondary stretching upper die 42 corresponds to the secondary stretching blank holder 25 .

The upper and lower sides of the workbench 1 are respectively provided with an upper support plate 7 and a lower support plate 8, and the upper support guide rod 71 and the lower support plate guide are respectively passed between the workbench 1 and the upper support plate 7 and the lower support plate 8. The rod 81 is connected to improve the stability of the drawing process.

The upper movable plate 3 that can move up and down is provided on the upper support guide rod 71, the upper movable plate 3 is fixedly connected with the upper mold 41 of the one-time drawing, and the upper movable plate 3 is provided on the described upper support plate 7. The movable upper side stretching piston cylinder 72 and the movable upper side central stretching piston cylinder 73 for driving the secondary stretching upper die 42 improve the stability of the die drawing process.

The primary stretching thimble plate 5 is connected to the lower support plate guide rod 81 and can move up and down along the lower support plate guide rod 81. The lower support plate 8 is provided with a lower side for driving the primary stretching thimble plate 5 to move. The side stretching piston cylinder 82 and the lower side central stretching piston cylinder 83 for driving the secondary stretching thimble member 6 to move.

The upper side stretching piston cylinder 72 and the upper central stretching piston cylinder 73 are hydraulic cylinders, and the upper support plate 7 is provided with a liquid filling tank 74 .

The specific working principle is shown in Figure 3 and Figure 4:

A. Initial state: The stretching cylinders on both sides of the machine are retracted, so that the upper movable beam drives the first stretching upper die fixed with it through the T-shaped slot to be in the upper position; at the same time, it is connected with the central stretching cylinder The upper die for the second stretching is also in the upper position due to the retraction of the central stretching cylinder. The lower oil cylinders on both sides push the first stretching top column and the first stretching blank holder to the set upper position through the supporting plate, and the central lower oil cylinder pushes the second stretching top column together with the second stretching blank holder To the setting upper position. The workpiece material is sent to the top of the lower mold fixed on the workbench through the feeding mechanism.

B. Punching the workpiece blank: the central stretching cylinder and the stretching cylinders on both sides go down at the same time, driving the two stretching upper dies to go down at the same time; the central stretching cylinder goes down until the second stretching upper die touches the workpiece blank and stops temporarily. The stretching oil cylinders on both sides drive the upper die for the first stretching to continue downward, punching out the required workpiece blank from the workpiece material.

C. First stretching: the stretching oil cylinders on both sides drive the first stretching upper die to continue down, and complete the first stretching of the workpiece blank.

D. Second stretching: After the first stretching is completed, the central stretching cylinder drives the upper die of the second stretching down to complete the second stretching of the workpiece blank. The second stretching can be positive stretching or reverse stretching, which is determined by the mold. In this case, it is positive stretching.

E. Reset: The central stretching oil cylinder and the stretching oil cylinders on both sides are retracted, and the lower central oil cylinder and the lower oil cylinders on both sides are ejected to complete a working cycle. If it is necessary to push out the workpiece from the upper die, a feeding cylinder can be set on the piston rod of the central stretching cylinder.

Through the above design, the work that originally required two stretching hydraulic presses is concentrated on one stretching hydraulic press, that is, one stretching hydraulic press can be used as two machines.

According to the above principles, the utility model can also make appropriate changes and modifications to the above embodiments. Therefore, the utility model is not limited to the specific implementation manners disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model.

Practice has proved that the number of equipment or the number of stations can be reduced by 50% by using the stretching hydraulic press of this technology, and the effects of energy saving, material saving and space saving are very obvious.

Claims (3)

1. A continuous drawing type drawing hydraulic press, comprising a workbench (1) connected to a base (11), said workbench (1) being provided with a die lower die (2), said workbench (1) A liftable upper movable plate (3) is arranged above, and a mold upper mold (4) is arranged on the lower side of the upper movable plate (3), which is characterized in that: The lower part of the workbench (1) is provided with a primary stretching thimble plate (5) and a secondary stretching thimble piece (6) successively, and the lower mold (2) of the mold includes a cylindrical lower outer mold (21), A cylindrical primary stretching lower die (22), a columnar secondary stretching lower die (23), and an annular primary stretching die (22) is arranged between the lower outer die (21) and the primary stretching lower die (22). A blank holder (24), an annular secondary stretch blank holder (25) is arranged between the primary stretch lower die (22) and the secondary stretch lower die (23), and the primary stretch thimble Distributed on the plate (5) is a primary stretching thimble (51) to withstand the primary stretching blankholder (24), and a secondary stretching thimble (61) is distributed on the secondary stretching thimble (61) to withstand Stretching blank holder (24) once; The die upper die (4) includes a cylindrical primary stretching upper die (41) and a cylindrical secondary stretching upper die (42), wherein the primary stretching upper die (41) and the primary stretching The blank holder (24) corresponds, and the secondary stretching upper die (42) corresponds to the secondary stretch blank holder (25). 2. A continuous drawing type drawing hydraulic press according to claim 1, characterized in that: The upper and lower sides of the workbench (1) are respectively provided with an upper support plate (7) and a lower support plate (8), between the workbench (1) and the upper support plate (7) and the lower support plate (8) Respectively through the upper support guide rod (71), the lower support plate guide rod (81) to connect; The upper movable plate (3) that can move up and down is arranged on the upper support guide rod (71), the upper movable plate (3) of the one-shot drawing (41) is fixedly connected with the upper movable plate (3), and the upper supporting plate (7 ) is provided with an upper side stretching piston cylinder (72) for driving the upper movable plate (3) to move and an upper side central stretching piston cylinder (73) for driving the secondary stretching upper die (42) to move; The primary stretching thimble plate (5) is connected with the lower support plate guide rod (81) and can move up and down along the lower support plate guide rod (81). Stretch the movable lower side stretching piston cylinder (82) of the thimble plate (5) and the movable lower side central stretching piston cylinder (83) for driving the secondary stretching thimble part (6). 3. A continuous deep drawing type drawing hydraulic machine according to claim 2, characterized in that: the upper side drawing piston cylinder (72) and the upper side central drawing piston cylinder (73) are hydraulic cylinders, A liquid filling tank (74) is arranged on the upper support plate (7).