CN213380419U

CN213380419U - Clamping device

Info

Publication number: CN213380419U
Application number: CN202020108005.7U
Authority: CN
Inventors: 孙有虎
Original assignee: Chuanbei Vacuum Technology Beijing Co ltd
Current assignee: Chuanbei Vacuum Technology Beijing Co ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2021-06-08
Anticipated expiration: 2030-01-17

Abstract

The utility model provides a binding clasp, include: the clamp comprises a cylinder (1), a pull rod (2), a guide rail base (3), a first pin shaft (4), a second pin shaft (5) and a hook head (6), wherein the cylinder (1) adopts a direct-drive cylinder and is used for providing power for the clamp; the pull rod (2) is connected with the cylinder (1) and the first pin shaft (4) and the second pin shaft (5) and used for playing a transition role, the guide rail base (3) is fixedly connected with the flange end of an equipment container and used as a connecting base of the cylinder (1) and used for penetrating the first pin shaft (4) and the second pin shaft (5), and the hook head (6) is used for clamping a container gate component. The clamp has a relatively compact structure and small occupied space; the hook head can be easily opened by 90 degrees; the structure principle is relatively simple, and the processing technology requirement is not high.

Description

Clamping device

Technical Field

The utility model relates to a general mechanical device technical field, especially a binding clasp.

Background

The clamping device is a mechanical device frequently used in the machine tool industry, and can be classified into a mechanical type, a hydraulic type, a pneumatic type and an electric type in terms of working principle. The hydraulic clamping device has the characteristics of simple structure, large clamping force and small volume, and is widely applied in various industries, in a clamping system of a press machine, the clamping is needed between a sliding block (movable beam) and a base plate of the press machine and between the base plate and a mold, the original clamping work is completed by screwing a screw by a worker, the required working time is longer due to more screws, and the working time is not enough for the worker to complete the work for some automatic production lines, so the automatic clamping device is needed to complete, particularly the clamping device between the base plate and the mold, and the clamping device is limited by the space of the mold and the clamping force, so that only the handheld hydraulic clamping device can be used, and the hydraulic clamping device has the widely existing problem of how to keep long-time clamping under the condition of power failure, namely self-locking.

In modern society, large container gate clamping mechanism requires automation, reliability, and safety, and has aesthetic property and miniaturity. The prior art solution does not have a widely used unified mechanism in automated grippers for large containers. The traditional clamp is lever structure, which is composed of cylinder, hook, support lug and tension spring. The cylinder provides main acting force for driving and drives the hook head to move; the hook head is loosened or clamped with the clamping surface of the container door; the support lug is used for passively driving the hook head to rotate at a certain angle; the extension spring assists in providing tension. In the clamping process, the air cylinder pushes the driving hook head forwards, at the moment, the support lug can move in place firstly due to the tension of the tension spring, and then the air cylinder continues to drive the hook head to clamp the container gate. In the loosening process, the air cylinder pulls the driving hook head backwards, at the moment, the hook head can move in place firstly due to the tension of the tension spring, then the air cylinder continues to move, and the support lug and the hook head are integrally driven to rotate and loosen. The following technical defects exist:

1. traditional binding clasp has four slipknot nodes for adopting lever structure form, and the cylinder is when pushing away the gib head and press from both sides tightly, if design and manufacturing accuracy deviation are big, the clamping of non-face contact face when can leading to the gib head to press from both sides tight container large-door flange, but the gib head sideline presss from both sides tightly to occupation space is great, and spare part is more, and the gib head degree of opening and shutting generally can't open to 90.

2. If the tension spring fails or is lost in actual use, the clamp cannot normally operate.

3. When space is relatively limited, the conventional clamp requires relatively much space and is therefore unusable.

4. Conventional gripper designs may be relatively material intensive when the clamping mechanism requires a hook opening and closing angle of up to 90 degrees.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned problem that prior art exists, the utility model provides a binding clasp, it is less relatively to need the space, and it is too high to make the required precision, and the structure is simple relatively, and can realize the aperture of rotatory 90 degrees, and concrete function specification is as follows:

in order to achieve the above purpose, the present invention is implemented by the following technical solutions: a gripper, comprising:

the clamp comprises a cylinder (1), a pull rod (2), a guide rail base (3), a first pin shaft (4), a second pin shaft (5) and a hook head (6), wherein the cylinder (1) adopts a direct-drive cylinder and is used for providing power for the clamp; the pull rod (2) is connected with the cylinder (1) and the first pin shaft (4) and the second pin shaft (5) and used for playing a transition role, the guide rail base (3) is fixedly connected with the flange end of an equipment container and used as a connecting base of the cylinder (1) and used for penetrating the first pin shaft (4) and the second pin shaft (5), and the hook head (6) is used for clamping a container gate component.

Preferably, one end of the pull rod (2) is provided with a cylinder rod (21) connected with the cylinder (1), and the part of the other end, which is provided with the vertical axis of the side wall, is provided with a pin penetrating shaft hole (22) penetrating through the first pin shaft (4) and the second pin shaft (5).

Preferably, the guide rail base (3) is provided with four cylindrical openings (31, 31'), a straight-edge notch (31) and an arc-shaped notch (33) which are respectively used for penetrating a first pin shaft (4) and a second pin shaft (5), the first pin shaft (4) penetrates through the straight-edge notch (31) of the guide rail base (3) and is connected with the pull rod (2) to transmit cylinder force so as to provide power for clamping/loosening of the hook head (6), the second pin shaft (5) penetrates through the arc-shaped notch (33) of the guide rail base (3), and the second pin shaft (5) moves in the arc-shaped notch (33) so as to enable the hook head (6) to rotate.

Preferably, the straight-edge notch (31) and the arc-shaped notch (33) are matched to determine the opening and closing angle of the hook head (6).

Preferably, a plurality of pin penetrating shaft holes (51, 51') penetrating through the first pin shaft (4) and the second pin shaft (5) are formed in the side surface of the hook head (6) at different heights, and the end surface (52) of the protruding part at one end is used for locking the container door.

The action principle of the clamping device is as follows:

the structure is assembled according to a general structure model, and the hook head is driven to clamp/loosen after the air is supplied by the air cylinder.

(1) In the clamping process, the air cylinder pulls the driving pull rod backwards, and then the hook head is driven to move through the pin shaft, so that the container door is clamped;

(2) in the loosening process, the cylinder pushes the driving pull rod forwards, and then the hook head is driven to move through the pin shaft, so that the container gate is clamped. In the loosening process, the hook head is driven by the arc-shaped notch of the guide rail base to rotate, and the hook head can be opened by 90 degrees according to the radian size relation of the arc-shaped notch.

The utility model has the advantages that:

1. the structure is relatively compact, and the occupied space is small;

2. the hook head can be easily opened by 90 degrees;

3. the structure principle is relatively simple, and the processing technology requirement is not high.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. The objects and features of the present invention will become more apparent in view of the following description taken in conjunction with the accompanying drawings, in which:

fig. 1 is a main schematic view of a clamper structure according to the present invention;

fig. 2 is a top view of the clamp structure according to the present invention.

Fig. 3 is a schematic view of a pull rod according to the present invention;

fig. 4 and 5 are schematic views of different angles of the rail base structure according to the present invention;

fig. 6 is a schematic view of the structure of the first pin and the second pin according to the present invention;

fig. 7 is a schematic view of the hook head structure according to the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings, but the present invention is not limited thereto.

Referring to fig. 1 and 2, a gripper includes: the clamping device comprises a cylinder 1, a pull rod 2, a guide rail base 3, a first pin shaft 4, a second pin shaft 5 and a hook head 6, wherein the cylinder 1 adopts a direct-drive cylinder and is used for providing power for the clamping device; the pull rod 2 is connected with the air cylinder 1, the first pin shaft 4 and the second pin shaft 5 and used for playing a transition role, the guide rail base 3 is fixedly connected with the flange 7 end of the equipment container and used as a connecting base of the air cylinder 1 and used for penetrating the first pin shaft 4 and the second pin shaft 5, and the hook head 6 is used for clamping a door component of the container.

Referring to fig. 3, one end of the pull rod 2 is provided with a cylinder rod 21 connected with the cylinder 1, and the part of the other end provided with the vertical axis of the side wall is provided with a pin through shaft hole 22 penetrating through the first pin 4 and the second pin 5.

Referring to fig. 4 and 5, the guide rail base 3 has four

cylindrical openings

31, 31 ', 31 ″, 31' ″, and has a straight-edge notch 31 and an arc-shaped notch 33 for respectively passing the first pin 4 and the second pin 5, the first pin 4 passes through the straight-edge notch 31 of the guide rail base 3 to be connected to the pull rod 2, and transmits the cylinder force to provide power for clamping/releasing the hook head 6, the second pin 5 passes through the arc-shaped notch 33 of the guide rail base 3, and the second pin 5 moves in the arc-shaped notch 33, so that the hook head 6 performs a rotation operation. The straight-edge notch 31 and the arc-shaped notch 33 cooperate to determine the opening and closing angle of the hook head 6. In the loosening process, the hook head is driven to rotate and run by the arc-shaped notch of the guide rail base, and the hook head can be opened by 90 degrees according to the radian size relation of the arc-shaped notch

Referring to fig. 6, the first pin 4 and the second pin 5 are schematically shown.

Referring to fig. 7, a plurality of pin-through shaft holes 51, 51 'are formed in the side surface of the hook head 6 at different heights, and the pin-through shaft holes 51, 51' are formed in the first pin 4 and the second pin 5, and the end surface 52 of the protruding portion at one end is used for locking the container door.

The action principle of the clamping device is as follows:

The structure of the embodiment is relatively compact, and the occupied space is small; the hook head can be easily opened by 90 degrees; the structure principle is relatively simple, and the processing technology requirement is not high.

The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by applying specific examples, and the descriptions of the above embodiments are only applicable to help understanding the principles of the embodiments of the present invention; meanwhile, the detailed description and the application scope of the embodiments of the present invention can be changed by those skilled in the art, and in summary, the content of the present description should not be construed as limiting the present invention.

Claims

1. A clamp, characterized by comprising:

2. A clamp according to claim 1, wherein: one end of the pull rod (2) is provided with a cylinder rod (21) connected with the cylinder (1), and the part of the other end, which is provided with the vertical axis of the side wall, is provided with a pin penetrating shaft hole (22) used for penetrating the first pin shaft (4) and the second pin shaft (5).

3. A clamp according to claim 1, wherein: the guide rail base (3) is provided with four cylindrical openings (31, 31'), a straight-edge notch (31) and an arc-shaped notch (33) which are respectively used for penetrating a first pin shaft (4) and a second pin shaft (5), wherein the first pin shaft (4) penetrates through the straight-edge notch (31) of the guide rail base (3) and is connected with the pull rod (2) to transmit cylinder force so as to provide power for clamping/loosening of the hook head (6), the second pin shaft (5) penetrates through the arc-shaped notch (33) of the guide rail base (3), and the second pin shaft (5) moves in the arc-shaped notch (33) to enable the hook head (6) to rotate.

4. A clamp according to claim 3, wherein: the straight-edge notch (31) and the arc-shaped notch (33) are matched to determine the opening and closing angle of the hook head (6).

5. A clamp according to claim 1, wherein: the side surface of the hook head (6) is provided with a plurality of pin penetrating shaft holes (51, 51') penetrating the first pin shaft (4) and the second pin shaft (5) at different heights, and the end surface (52) of the protruding part at one end is used for locking the container door.