Encircling type adsorption device

Abstract

The utility model relates to a surrounding type adsorption device which comprises a fixing base and a suction cup, the suction cup is arranged on the fixing base, the outer circumference of the suction cup can be controlled to expand or contract so as to change the diameter of an opening of the suction cup to surround an adsorbed object, and the adsorbed object is surrounded through the adsorption capacity of the suction cup and the change of the diameter of the opening of the suction cup. And dependence on traditional clamping force is reduced, the part damage risk is reduced, and the grabbing device is suitable for grabbing fragile or tiny parts.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of machining, especially to a ring type adsorption device. BACKGROUND

[0002] Current clamping devices (such as mechanical clamping jaws, pneumatic clamps) are widely used in the field of industrial automation, but there are still the following technical bottlenecks for the clamping needs of fragile parts (such as ceramics, glass products) or small volume parts:

[0003] Insufficient clamping force control: rigid clamping jaws are prone to breakage of brittle materials due to excessive clamping force, or small parts are prone to falling off due to insufficient clamping force.

[0004] Poor contact surface adaptability: the contact surface of traditional clamps is of fixed shape (such as plane / sawtooth surface), which is prone to local stress concentration or insufficient contact area, and is difficult to fit to the special-shaped surface.

[0005] Insufficient miniaturization precision: poor stability in grabbing small size parts, prone to clamping failure due to mechanical vibration or positioning error.

[0006] Therefore, it is urgent to design a ring type adsorption device that can adsorb fragile parts or small volume parts to solve the problem of part breakage or sliding caused by the out-of-control clamping force of traditional clamping devices. SUMMARY

[0007] Therefore, the utility model provides a ring type adsorption device that can adsorb fragile parts or small volume parts to solve the problem of part breakage or sliding caused by the out-of-control clamping force of traditional clamping devices.

[0008] The ring type adsorption device provided by the utility model adopts the following technical scheme:

[0009] A ring type adsorption device includes a fixed seat and a suction cup, the suction cup is arranged on the fixed seat, and the outer circumference of the suction cup can be controlled to expand or contract to change the diameter of the suction cup opening to form a ring around the adsorbed object.

[0010] Optionally, the fixed seat is provided with a plurality of flexible arms in the circumferential direction, the outer circumference of the suction cup is arranged on the flexible arm, and the flexible arm can be controlled to rotate to change the diameter of the suction cup opening.

[0011] Optionally, the suction cup can be controlled to slide along the axial direction of the fixed seat to make the flexible arm rotate to change the diameter of the suction cup opening.

[0012] Optionally, the fixed seat is provided with a limiting groove for limiting the inward movement of the suction cup.

[0013] Optionally, the suction cup has a flexible cover, and an open end of the flexible cover is arranged at a rotating end of the flexible arm.

[0014] Optionally, the device further comprises a driving member configured to drive the suction cup to slide along the axial direction of the fixing base.

[0015] Optionally, the suction cup is provided with a sliding base, the fixing base is provided with a through hole in the axial direction, and the driving member is configured to drive the sliding base to slide along the axial direction of the fixing base.

[0016] Optionally, the sliding base is provided with an air pipe connected with the suction cup, and the air pipe is configured to be connected with an air source.

[0017] In summary, the device has at least one of the following beneficial technical effects: the suction cup is capable of forming a ring around the object to be adsorbed by the adsorption capacity of the suction cup and the change of the diameter of the opening of the suction cup, the device reduces the dependence on the traditional clamping force, reduces the risk of part damage, and is suitable for fragile or small part grabbing work. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structure diagram of the opening expansion of the suction cup of the device Figure 1 ;

[0019] Figure 2 is a structure diagram of the opening expansion of the suction cup of the device Figure 2 ;

[0020] Figure 3 is a structure diagram of the opening contraction of the suction cup of the device Figure 1 ;

[0021] Figure 4 is a structure diagram of the opening contraction of the suction cup of the device Figure 2 .

[0022] Reference signs: 1, fixing base; 2, suction cup; 3, flexible arm; 4, limiting groove; 5, flexible cover; 6, driving member; 7, sliding base; 8, air pipe. DETAILED DESCRIPTION

[0023] The device will be further described below in combination with the drawings. Figures 1-4 The device will be further described below in combination with the drawings.

[0024] The device has at least one of the following beneficial technical effects: the suction cup is capable of forming a ring around the object to be adsorbed by the adsorption capacity of the suction cup and the change of the diameter of the opening of the suction cup, the device reduces the dependence on the traditional clamping force, reduces the risk of part damage, and is suitable for fragile or small part grabbing work.

[0025] Reference Figures 1-4A kind of embracing adsorption device includes fixed seat 1 and suction cup 2, suction cup 2 is arranged in fixed seat 1, the outer circumference of suction cup 2 can be controlled to expand or contract to change the diameter of the opening of suction cup 2 to form the embrace of the adsorbed object, by the adsorption capacity of suction cup 2 and change the diameter of the opening of suction cup 2 to form the embrace of the adsorbed object, reduce the dependence on traditional clamping force, reduce the risk of part damage, it is suitable for fragile or small parts grabbing work.

[0026] Fixed seat 1 is provided with a plurality of flexible arms 3 along the circumference, the outer circumference of suction cup 2 is arranged in flexible arm 3, flexible arm 3 can be controlled to rotate to change the diameter of the opening of suction cup 2, so that suction cup 2 can be adjusted according to the shape and size of different objects, by controlling the rotation of flexible arm 3, the opening diameter of suction cup 2 can be expanded or reduced, so as to adapt to objects of various sizes, by the above arrangement, suction cup 2 can maintain adsorption force while being wrapped by the adsorbed object through the rotation of flexible arm 3, not only improves work efficiency, but also ensures the accuracy and stability of operation.

[0027] In the embodiment, suction cup 2 can be controlled to slide along the axial direction of fixed seat 1 to rotate flexible arm 3 to change the diameter of the opening of suction cup 2. Specifically, the embracing adsorption device further includes a driving member 6, a sliding seat 7 is arranged on suction cup 2, a through hole is formed in fixed seat 1 along the axial direction, and the driving member 6 is used to drive suction cup 2 to slide along the axial direction of fixed seat 1 through the sliding seat 7. Further, the driving member 6 is an electric cylinder, and the movable rod of the electric cylinder is arranged in the sliding seat 7.

[0028] The electric cylinder can realize high-precision position control and speed control. In the utility model, the electric cylinder drives the sliding seat 7 to slide along the axial direction of the fixed seat 1 through the movable rod, so as to control the rotation of the flexible arm 3 to change the diameter of the opening of the suction cup 2. The suction cup 2 can accurately adapt to objects of different sizes and shapes, improving the accuracy and stability of adsorption.

[0029] A limiting groove 4 is arranged on the fixed seat 1 for limiting the inward movement of the suction cup 2. By arranging the limiting groove 4, it can be ensured that the suction cup 2 will not exceed the predetermined range when moving inward, thereby improving the stability of the entire adsorption device during use, which helps to prevent the device from failing or being damaged due to excessive movement of the suction cup 2, and ensures that the adsorption device can work continuously and reliably.

[0030] In addition, the limiting groove 4 can also play a certain protective role for the suction cup 2. During adsorption, the suction cup 2 may be subjected to a reaction force from the adsorbed object. Without the limiting groove 4, the suction cup 2 may be damaged due to excessive force. With the limiting groove 4, the movement range of the suction cup 2 can be effectively limited, thereby reducing the risk of damage to the suction cup 2.

[0031] The suction cup 2 has a flexible cover 5, and the open end of the flexible cover 5 is arranged at the rotating end of the flexible arm 3. In the embodiment, the flexible cover 5 is made of flexible material, specifically, silica gel, and the flexible cover 5 can provide better buffering effect when contacting the adsorbed object, thereby reducing the damage to the object.

[0032] The sliding seat 7 is provided with an air pipe 8 in communication with the suction cup 2, and the air pipe 8 is used to connect an external air source. The suction cup 2 is connected to the external air source through the air pipe 8, so as to realize the functions of air suction and air blowing of the suction cup 2. When the external air source provides negative pressure, the suction cup 2 can adsorb the object; when the external air source provides positive pressure, the suction cup 2 can release the object. The air pipe 8 has a bellows with a telescopic length, so as to adapt to the stability of the connection during the axial sliding of the sliding seat 7 on the fixing seat 1.

[0033] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application but not limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and all of them should be covered in the scope of the claims of the present application.

Claims

1. A ring-type adsorption device, characterized in that: It includes a mounting base and a suction cup. The suction cup is mounted on the mounting base, and the outer circumference of the suction cup can be controlled to expand or contract to change the diameter of the suction cup opening to form a ring around the object being adsorbed.

2. The annular adsorption device according to claim 1, characterized in that: The mounting base is provided with a plurality of flexible arms along the circumference, and the outer circumference of the suction cup is provided on the flexible arms. The flexible arms can be manipulated to rotate to change the diameter of the suction cup opening.

3. The annular adsorption device according to claim 2, characterized in that: The suction cup can be manipulated to slide axially along the fixed base, causing the flexible arm to rotate and change the diameter of the suction cup opening.

4. The annular adsorption device according to claim 3, characterized in that: The mounting base is provided with a limiting groove to restrict the inward movement of the suction cup.

5. The circumferential adsorption device according to any one of claims 1-4, characterized in that: The suction cup has a flexible cover, and the open end of the flexible cover is located at the rotating end of the flexible arm.

6. The circumferential adsorption device according to claim 5, characterized in that: It also includes a drive unit for driving the suction cup to slide axially along the base.

7. The annular adsorption device according to claim 6, characterized in that: The suction cup is provided with a sliding seat, the fixed seat has a through hole along the axial direction, and the driving member is used to drive the sliding seat to slide along the axial direction of the fixed seat.

8. The annular adsorption device according to claim 7, characterized in that: The sliding seat is provided with an air pipe that communicates with the suction cup, and the air pipe is used to connect to an external air source.

Images