CN216780003U

CN216780003U - Hard sealing structure used in electric hydraulic punching machine

Info

Publication number: CN216780003U
Application number: CN202122491988.4U
Authority: CN
Inventors: 郑君斌; 魏显强
Original assignee: Wenling Zhonghong Machinery Co ltd
Current assignee: Wenling Zhonghong Machinery Co ltd
Priority date: 2021-10-17
Filing date: 2021-10-17
Publication date: 2022-06-21
Anticipated expiration: 2031-10-17

Abstract

The utility model belongs to the technical field of sealing of punching machines and discloses an internal hard sealing structure for an electric hydraulic punching machine. The punching sealing structure is stable and reliable, is tightly sealed, and does not need to be frequently replaced; the punching sealing structure can be matched with different punching structures for use, and no matter how long the working time of a product is, the temperature of the product rises to a high degree, the efficacy cannot be failed, and the oil immersion and leakage phenomena cannot occur. The structure design is reasonable, the structure is not too complex, the production cost is low, and the replacement of accessories is simple.

Description

Hard sealing structure used in electric hydraulic punching machine

Technical Field

The utility model belongs to the technical field of punching sealing structures of electric hydraulic punching machines, and particularly relates to a hard sealing structure used in an electric hydraulic punching machine.

Background

At present: punching is a process of obtaining a certain shape, size and performance by directly subjecting plates, strips, pipes, profiles and the like to punching and shearing forces therein by means of a conventional or special punching machine to deform.

With the rapid development of modern industry, the application of the punching structure is more and more extensive, however, in the prior art, the efficiency is failed and the sealing is not tight because the structure of the punching sealing structure is unstable in the use process, and the sealing structure needs to be frequently replaced, so that the production efficiency is greatly reduced. In addition, the existing punching sealing structure works for a long time, and after the temperature of the product is raised too high, the effect is easy to lose efficacy, and oil immersion and leakage phenomena can occur. The existing punching sealing structure has the defects that one part of the structure is too simple, the sealing is not tight enough and the oil immersion and leakage phenomena occur easily, the other part of the structure is too complex, the requirement on the sealing structure production equipment is high, and the production cost is high.

Through the above analysis, the problems and defects of the prior art are as follows:

(1) the sealing structure is not properly designed and is not properly matched with the punching structure, so that the efficacy is failed, the sealing is not tight, the sealing structure needs to be frequently replaced, and the production efficiency is greatly reduced

(2) The sealing structure has unstable performance, and the efficacy is easy to lose efficacy and oil immersion and leakage phenomena can occur after the product works for a long time and the temperature of the product rises too high.

(3) The structure is too complex, which results in high requirements for the production equipment of the sealing structure and, in fact, high production costs.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model provides a hard sealing structure used in an electric hydraulic punching machine.

The utility model is realized in such a way that the hard sealing structure used in the electric hydraulic punching machine is provided with:

a plunger sleeve;

the plunger sleeve is arranged in a plunger hole formed in the inner side of the pump body, a plunger is sleeved on the inner side of the plunger sleeve, a spring is arranged at the left end of the plunger, and the left end of the spring is abutted against the left end of the plunger sleeve.

Furthermore, a groove is formed in the middle of the left end of the plunger, and the right end of the spring is sleeved in the groove.

Furthermore, a spring seat is fixed in the middle of the left end of the plunger sleeve, and the left end of the spring is sleeved outside the spring seat.

Further, a red copper gasket is arranged between the outer side of the plunger sleeve and the connecting position of the pump body.

Further, the spring holder is T type boss, and T type boss upper portion is clearance fit with the spring.

By combining all the technical schemes, the utility model has the advantages and positive effects that: the punching sealing structure is stable and reliable, is tightly sealed, and does not need to be frequently replaced; the punching sealing structure can be matched with different punching structures for use, and no matter how long the working time of a product is, the temperature of the product rises to a high degree, the efficacy cannot lose efficacy, and the oil immersion and leakage phenomena cannot occur. Structural design is reasonable, and is not too complicated, low in production cost, and it is simple to change the accessory.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained from the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a hard seal structure inside an electro-hydraulic punching machine according to an embodiment of the utility model.

Fig. 2 is a schematic structural diagram of a plunger barrel according to an embodiment of the present invention.

FIG. 3 is a schematic view of the installation position of the hard seal structure inside the electro-hydraulic punching machine provided by the embodiment of the utility model.

In the figure: 1. a pump body; 2. a plunger sleeve; 3. a plunger; 4. a spring; 5. a spring seat; 6. a red copper gasket; 7. a one-way valve.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Aiming at the problems in the prior art, the utility model provides a hard sealing structure used in an electric hydraulic punching machine, and the utility model is described in detail with reference to the attached drawings.

As shown in fig. 1 to 3, a plunger sleeve 2 used in a hard seal structure inside an electro-hydraulic punching machine according to an embodiment of the present invention is installed in a plunger hole formed in an inner side of a pump body 1, a plunger 3 is sleeved on an inner side of the plunger sleeve 2, a spring 4 is disposed at a left end of the plunger 3, and a left end of the spring 4 abuts against a left end of the plunger sleeve 2. The middle of the left end of the plunger 3 is provided with a groove, and the right end of the spring 4 is sleeved in the groove.

Preferably, a spring seat 5 is fixed in the middle of the left end of the plunger sleeve 2, and the left end of the spring 4 is sleeved outside the spring seat 5.

Preferably, a red copper gasket 6 is provided between the outside of the plunger barrel 2 and the connection position of the pump body 1.

Preferably, the spring seat 5 is a T-shaped boss, and the upper part of the T-shaped boss is in clearance fit with the spring.

When the hydraulic punching machine is used, the plunger 3 is positioned on the left side of a core shifting wheel of the electric hydraulic punching machine, a motor of the electric hydraulic punching machine rotates to drive the core shifting wheel to synchronously rotate, the plunger 3 is pressed once every time the core shifting wheel rotates for 1 circle, the pressed and moving plunger forms pressure with hydraulic oil entering the plunger, meanwhile, steel balls in the check valve 7 are pressed open, and at the moment, the hydraulic oil enters another space. The plunger 3 internally mounted has spring 4, and when the high-order motion of eccentric wheel reached another angle, the plunger returned through the resilience pressure of spring, and the spring resilience pressure in the synchronous check valve made the steel ball also reset. The hydraulic oil does not flow back at this time.

The position of plunger hole work is the design of obstructed hole structure, and the installation terminal surface of plunger bushing is the sealed firmly of red copper gasket again, when the plunger in service produces pressure with hydraulic oil, can not be because of sealed problem, in the oil tank is flowed back again to hydraulic oil to let work inefficacy.

The punching sealing structure is stable and reliable, is tightly sealed, and does not need to be frequently replaced. The punching sealing structure is matched with different punching structures for use, and no matter how long the working time of the product is, the temperature of the product rises to a high degree, the efficacy cannot be failed, and the oil immersion and oil leakage phenomena cannot occur. The structure design is reasonable, the structure is not too complex, the production cost is low, and the replacement of accessories is simple.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, and any modification, equivalent replacement, and improvement made by those skilled in the art within the technical scope of the present invention disclosed herein, which is within the spirit and principle of the present invention, should be covered by the present invention.

Claims

1. The utility model provides a be used for inside hard seal structure of electro-hydraulic piercing press which characterized in that, be used for inside hard seal structure of electro-hydraulic piercing press to be provided with:

a plunger sleeve;

2. The internal hard seal structure for the electro-hydraulic punching machine according to claim 1, wherein a groove is formed in the middle of the left end of the plunger, and the right end of the spring is sleeved in the groove.

3. The internal hard seal structure for the electro-hydraulic punching machine as claimed in claim 1, wherein a spring seat is fixed in the middle of the left end of the plunger sleeve, and the left end of the spring is sleeved outside the spring seat.

4. The internal hard seal structure for an electro-hydraulic punching machine according to claim 1, wherein a red copper gasket is provided between the outside of the plunger sleeve and the pump body attachment position.

5. The internal hard seal structure for an electro-hydraulic punching machine as claimed in claim 3, wherein the spring seat is a T-shaped boss, and the upper part of the T-shaped boss is in clearance fit with the spring.