CN110056566A - A kind of vacuum chuck for compromise face absorption - Google Patents

Abstract

The invention discloses a vacuum suction cup for special-shaped surface adsorption. The combination of the air storage chamber and the vacuum port is set. When the vacuum port adsorbs objects with rough surfaces or irregular curved surfaces and spherical surfaces, the sealing airbag is squeezed and deformed, and its lower edge is closely attached to the surface of the object. To a certain extent, the elastic silicone support block abuts the object, so the vacuum port is tightly sealed, and the object is stably adsorbed and will not be bumped. The invention has novel design, precise structure and large grasping force, realizes stable holding of various special-shaped surface objects, has high overall work stability, strong practicability, wide application range and great industrial value.

Description

A vacuum suction cup for special-shaped surface adsorption

technical field

The invention relates to the field of vacuum suction cups, in particular to a vacuum suction cup used for special-shaped surface adsorption.

Background technique

Vacuum suction cup is one of the actuators of vacuum equipment. It has been widely used in construction, papermaking, printing, glass, aviation, aerospace, shipbuilding and other machinery manufacturing and assembly fields by grasping and transporting workpieces. At present, vacuum suction cups are mainly used to adsorb objects with flat surfaces. For objects with rough surfaces or irregular curved surfaces and spherical surfaces, the vacuum suction cups in the prior art cannot closely fit the surface of the object, so that the vacuum suction cup and the adsorption object cannot be separated. The formation of a vacuum creates a negative pressure, which prevents such objects from being adsorbed.

SUMMARY OF THE INVENTION

In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a vacuum suction cup for adsorption of irregular surfaces.

In order to achieve the above purpose, the technical solution adopted by the present invention to solve the technical problem is: a vacuum suction cup for adsorption of a special-shaped surface, comprising a suction cup main body and a sealing air bag, the lower end of the suction cup main body is converged, and extends into the upper end of the sealing air bag The wrapping is fixed, a cavity is formed in the upper part of the suction cup body, a vacuum generating tube is embedded horizontally in the middle of the cavity, and a vacuum generating nozzle is arranged at one end of the vacuum generating tube, and the cavity is on the side of the vacuum generating nozzle. An air inlet is formed through the outer wall of the suction cup main body, an air passage A is opened in the cavity relative to the inner wall of the vacuum generating nozzle, and an exhaust port is formed through the air passage A on the outer wall of the suction cup main body, and the middle part of the suction cup main body An air passage B is provided downwardly through the communicating vacuum generating tube, a vacuum port is formed through the middle part of the air-tight air bag, the air-storage chamber is hollow inside the air-tight air bag, and the inner wall is corrugated in the longitudinal direction. An airway C is communicated between the inner wall of the vacuum generating nozzle and the air storage chamber, a support block is connected to the lower end of the airway B in the airtight airbag, and the outer edge of the support block abuts the inner wall of the airtight airbag.

Preferably, the upper and lower ends of the suction cup body and the sealing airbag wrap are respectively provided with a buckle structure A and a buckle structure B, the outer wall of the suction cup body is embedded with an annular spring A at the buckle structure A, and the seal An annular spring B is embedded at the buckle structure B inside the airbag.

Preferably, the support block is made of silica gel material.

Preferably, the suction cup main body is provided with a pressure relief valve, one end of the pressure relief valve is connected to the air storage chamber, and the other end penetrates through the outer wall of the suction cup main body.

Preferably, a vacuum detection port is opened on the outer wall of the suction cup body.

Preferably, the upper end of the suction cup body protrudes to form a fastening seat.

Due to the application of the above-mentioned technical solutions, the present invention has the following beneficial effects compared with the prior art:

Through the combination of the suction cup body and the air inlet, vacuum generating nozzle, vacuum generating tube, air passage A, air passage B, exhaust port, air passage C, air storage chamber and vacuum port in the sealed airbag, the compressed gas can be introduced into the air bag. After the air inlet, it is discharged from the vacuum generating tube through the vacuum generating nozzle. The vacuum generating tube generates a vacuum to drive the air in the air channel B to be pulled away, so that a strong negative pressure is generated at the vacuum port, and part of the exhausted gas enters from the exhaust port through the air channel A. Atmosphere, the other part enters the sealing airbag through the airway C to make it bulge. When the vacuum port adsorbs the object with rough surface or irregular curved surface and spherical surface, the sealing airbag is squeezed and deformed, and its lower edge is tightly connected with the surface of the object. Fitting, when deformed to a certain extent, the elastic silicone support block abuts the object, so the vacuum port is sealed tightly, the object is stably adsorbed and will not be bumped.

The invention has novel design, precise structure and large grasping force, and realizes stable holding of various special-shaped surface objects, such as objects with rough surfaces or objects with irregular curved surfaces and spherical surfaces. Customized suction cups of corresponding shapes greatly reduce production costs, have high overall work stability, strong practicability, wide application range and great industrial value.

Description of drawings

FIG. 1 is a front view of this embodiment.

FIG. 2 is a cross-sectional view of this embodiment.

FIG. 3 is a cross-sectional view of this embodiment.

In the figure: 1. Main body of suction cup; 2. Sealed air bag; 3. Cavity; 4. Vacuum generating tube; 5. Vacuum generating nozzle; 6. Air inlet; 7. Airway A; 8. Exhaust port; 9. Airway B; 10, Vacuum port; 11, Air storage chamber; 12, Airway C; 13, Support block; 14, Buckle structure A; 15, Buckle structure B; 16, Ring spring A; 17, Ring spring B; 18. Pressure relief valve; 19. Vacuum detection port; 20. Fastening seat.

Detailed ways

Below in conjunction with specific embodiment, the content of the present invention is described in further detail:

1 , 2 and 3 , the present embodiment is a vacuum suction cup for adsorption on a special-shaped surface, including a suction cup body 1 and a sealing air bag 2 . Fixed, a cavity 3 is formed in the upper part of the suction cup main body 1, a vacuum generating tube 4 is embedded horizontally in the middle of the cavity 3, one end of the vacuum generating tube 4 is provided with a vacuum generating nozzle 5, and the cavity 3 penetrates the suction cup on the side of the vacuum generating nozzle 5 An air inlet 6 is formed on the outer wall of the main body 1, an air passage A7 is opened in the cavity 3 relative to the inner wall of the vacuum generating nozzle 5, and an air passage A7 is formed on the outer wall of the suction cup main body 1 to form an exhaust port 8, and the middle part of the suction cup main body 1 communicates with each other. The vacuum generating tube 4 is provided with an air passage B9 downward, the middle of the air-tight air bag 2 is penetrated downward to form a vacuum port 10, the air-storage chamber 11 is formed by a hollow inside of the air-tight air bag 2, and the inner wall is longitudinally corrugated. An air passage C12 is communicated between the inner wall of the vacuum generating nozzle 5 and the air storage chamber 11 . A support block 13 is connected to the lower end of the air passage B9 in the airtight airbag 2 .

Among them, the sealing structure of the suction cup body 1 and the sealing airbag 2 is as follows: the upper and lower ends of the suction cup body 1 and the sealing airbag 2 are respectively provided with a buckle structure A14 and a buckle structure B15, and the outer wall of the suction cup body 1 is in the buckle structure A14. A ring-shaped spring A16 is embedded at the place, and a ring-shaped spring B17 is embedded at the buckle structure B15 inside the airbag 2 .

In this embodiment, the support block 13 is made of silica gel material, which has elasticity. When the vacuum port 10 absorbs the product, the support block 13 abuts against the product and deforms to prevent the product from being bruised; the suction cup body 1 is provided with a pressure relief valve 18. One end of the pressure relief valve 18 is connected to the air storage chamber 11, and the other end penetrates the outer wall of the suction cup main body 1, which is used for the air pressure control in the air storage chamber 11. The gas in the air storage chamber 11 can be adjusted by the pressure relief valve 18 directly into the atmosphere; the suction cup The outer wall of the main body 1 is provided with a vacuum detection port 19 for detecting the vacuum state in the suction cup main body 1;

The innovation of the present invention is: through the suction cup body 1 and the air inlet 6, the vacuum generating nozzle 5, the vacuum generating tube 4, the air passage A7, the air passage B9, the exhaust port 8, the air passage C12, the storage The combination of the air chamber 11 and the vacuum port 10 is arranged so that after the compressed gas is introduced into the air inlet 6, it is discharged from the vacuum generating pipe 4 through the vacuum generating nozzle 5, and the vacuum generating pipe 4 generates a vacuum to drive the air in the air passage B9 to be evacuated, so that the The vacuum port 10 generates a strong negative pressure, and part of the discharged gas enters the atmosphere from the exhaust port 8 through the air channel A7, and the other part enters the airbag 2 through the air channel C12 to make it bulge. When the vacuum port 10 has a rough adsorption surface or the surface is not When the object is a regular curved surface or a spherical surface, the sealing airbag 2 is squeezed and deformed, and its lower edge is closely attached to the surface of the object. When the deformation reaches a certain level, the elastic silicone support block 13 abuts the object, so the vacuum port The 10 places are tightly sealed, and the object adsorption is stable and firm without bruising; the invention has a novel design, a precise structure, and a large grasping force, which realizes the stable holding of various special-shaped surface objects, such as objects with rough surfaces or For objects with irregular curved surfaces and spherical surfaces, there is no need to customize the corresponding shape of the suction cup according to a single special-shaped surface, which greatly reduces the production cost, has high overall work stability, strong practicability, wide application range, and great industrial value.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and their purpose is to enable those who are familiar with the art to understand the content of the present invention and implement it, and cannot limit the scope of protection of the present invention with this, all according to the spirit of the present invention Substantially equivalent changes or modifications should be included within the protection scope of the present invention.

Claims (6)

1. a kind of vacuum chuck for compromise face absorption, it is characterised in that: including suction cup main body (1) and pressure bladder (2), Suction cup main body (1) lower end collects, and protrudes into pressure bladder (2) upper end and wrap up in set fixation, suction cup main body (1) the internal upper part shape At cavity (3), level is embedded with vacuum generator tube (4) in the middle part of the cavity (3), and described vacuum generator tube (4) one end is equipped with true Mouth (5) occur for sky, and mouth (5) side occurs in vacuum in the cavity (3) and forms air inlet (6) through suction cup main body (1) outer wall, Mouth (5) side inner wall occurs relative to vacuum in the cavity (3) to offer upward air flue A (7), the suction cup main body (1) is outside Air flue A (7) are penetrated through on wall and form exhaust outlet (8), and connection vacuum generator tube (4) runs through set downward in the middle part of the suction cup main body (1) Have air flue B (9), forms vacuum port (10) through downward in the middle part of the pressure bladder (2), pressure bladder (2) inner hollow It forms air storage chamber (11) and inner wall is longitudinally upper corrugated, mouth (5) side inner wall occurs relative to vacuum in the cavity (3) It is communicated between air storage chamber (11) air flue C (12), is connected with supporting block in air flue B (9) lower end in the pressure bladder (2) (13), supporting block (13) outer abuts pressure bladder (2) inner wall.

2. a kind of vacuum chuck for compromise face absorption according to claim 1, it is characterised in that: the sucker master Body (1) and pressure bladder (2) wrap up in upper and lower ends at set and are respectively equipped with buckle structure A (14) and buckle structure B (15), the sucker Main body (1) outer wall is embedded with ring spring A (16) at buckle structure A (14), and pressure bladder (2) inner wall is in buckle structure Ring spring B (17) are embedded at B (15).

3. a kind of vacuum chuck for compromise face absorption according to claim 2, it is characterised in that: the supporting block (13) it is made of silica gel material.

4. a kind of vacuum chuck for compromise face absorption according to claim 3, it is characterised in that: the sucker master Relief valve (18) are equipped in body (1), described relief valve (18) one end connects air storage chamber (11), and the other end penetrates through suction cup main body (1) Outer wall.

5. a kind of vacuum chuck for compromise face absorption according to claim 4, it is characterised in that: the sucker master Vacuum detecting mouth (19) are offered on body (1) outer wall.

6. a kind of vacuum chuck for compromise face absorption according to claim 5, it is characterised in that: the sucker master Body (1) upper end convexes to form fastening seat (20).