CN209812343U - Clamp - Google Patents

Abstract

The utility model relates to an automated production equipment technical field discloses an anchor clamps, including clamp seat, first clamp, connecting rod and piston. Wherein, the clamp seat is provided with a through hole. The first clamp body comprises a first clamping part and a transmission part, a first hinge hole and a second hinge hole are formed in the transmission part, and the first clamp body is hinged to the clamp body seat through the first hinge hole. One end of the connecting rod penetrates through the through hole and is hinged with the first clamp body through the second hinge hole, and the connecting rod and the inner wall of the through hole are arranged at intervals. The piston is hinged with the other end of the connecting rod. The fixture provided by the utility model has the advantages that firstly, the structure of the piston is simplified, the processing and forming difficulty of the piston is reduced, and meanwhile, the whole processing difficulty is greatly reduced due to the simple structure of the connecting rod; secondly, the flexibility of the movement of the connecting rod is increased, so that the clamp can run more smoothly, and the service life of the clamp is prolonged; finally, the piston and the connecting rod can be separately and independently replaced, and the maintenance cost is greatly reduced.

Description

Clamp

Technical Field

The utility model relates to an automated production equipment technical field especially relates to an anchor clamps.

Background

The robot arm usually needs to be provided with a clamp, and the clamp is used for hooking, dragging or clamping the workpiece. The existing clamp for the mechanical arm is generally provided with a special connecting structure such as a clamping hook on a piston, the piston is directly connected with a clamp body by using the connecting structure, and the clamp body is directly driven to rotate by using the piston. However, the piston is complex in structure, needs to be provided with special connecting structures such as clamping hooks and the like, is high in processing and forming difficulty and high in production cost, runs unsmoothly, is easy to damage, and needs to be integrally replaced when the piston fails and cannot normally work, so that the maintenance cost is high. Therefore, a new clamp is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Based on the above, an object of the utility model is to provide an anchor clamps to solve the technical problem such as the piston structure that exists is complicated among the current anchor clamps, manufacturing cost is high, the operation is not smooth and easy, bad easily, cost of maintenance height.

In order to achieve the purpose, the utility model adopts the following technical proposal:

a clamp, comprising:

the clamp body seat is provided with a through hole;

the first clamp body comprises a first clamping part and a transmission part, a first hinge hole and a second hinge hole are formed in the transmission part, and the first clamp body is hinged with the clamp body seat through the first hinge hole;

one end of the connecting rod penetrates through the through hole and is hinged with the first clamp body through the second hinge hole, and the connecting rod and the inner wall of the through hole are arranged at intervals;

and the piston is hinged with the other end of the connecting rod.

Furthermore, the clamping device also comprises a spring which is sleeved on the connecting rod, one end of the spring is abutted against the clamp body seat, and the other end of the spring is abutted against the piston.

Further, still include the barrel, the piston set up in the barrel, just the piston can follow the inner wall of barrel slides.

Further, one end of the cylinder is provided with a first opening, and the clamp seat portion is arranged in the first opening.

The air inlet plug is arranged in the second opening, and an air inlet hole is formed in the air inlet plug.

Further, the air inlet hole comprises an air inlet part and a throttling part, and the diameter of the throttling part is smaller than that of the air inlet part.

Furthermore, a gas collecting groove is formed in the gas inlet plug, and the maximum diameter of the gas collecting groove is smaller than the diameter of the bottom of the piston.

Further, the workpiece clamping device further comprises a second clamp body which is detachably arranged on the clamp body seat, and the second clamp body can be matched with the first clamp body to clamp a workpiece.

Furthermore, the clamping piece is detachably arranged on the first clamp body and/or the second clamp body.

Further, still include Y type sealing washer, set up in the piston with between the barrel.

The utility model has the advantages that:

the clamp provided by the utility model, through setting up the connecting rod between first clamp and piston, utilize the connecting rod to drive the first clamp and rotate, at first, need not to set up connecting structure such as special trip on the piston again, simplified the structure of piston, reduced the machine-shaping degree of difficulty of piston, because the shape and the structure of connecting rod are very simple at the same time, so the whole processing degree of difficulty and processing cost will also greatly reduce; secondly, the hinge points are arranged between the connecting rod and the first clamp body and between the connecting rod and the piston, and the connecting rod and the inner wall of the through hole are arranged at intervals, so that the movement flexibility of the connecting rod is improved, the piston, the connecting rod and the first clamp body are matched more smoothly, and the service life of the clamp is prolonged; finally, the piston and the connecting rod can be separately and independently replaced, and all driving assemblies do not need to be replaced, so that the maintenance cost is greatly reduced.

Drawings

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

Fig. 1 is a schematic structural diagram of a clamp provided in an embodiment of the present invention;

fig. 2 is a cross-sectional view of a clamp according to an embodiment of the present invention without a second clamp body;

fig. 3 is a schematic structural diagram of a clamp seat in a clamp according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a first clamp body in the clamp according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a piston in a clamp according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a second clamp body in the clamp according to an embodiment of the present invention.

In the figure:

1-a clamp base; 11-a through hole;

2-a first clamp body; 21-a first gripper; 22-a transmission part; 221-a first hinge hole; 222-a second hinge hole;

3-a connecting rod;

4-a piston;

5-a spring;

6-cylinder body;

7-an air inlet plug; 71-air intake; 711-an air intake; 712-a throttle; 72-a gas collecting tank;

8-a second clamp body; 81-a second pick up; 82-a mounting portion;

9-a clip;

10-Y type sealing ring.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-5, the present embodiment provides a gripper that can be mounted on a robot arm for hooking, dragging, and/or gripping a workpiece. The clamp comprises a clamp seat 1, a first clamp 2, a connecting rod 3 and a piston 4, wherein the clamp seat 1 is used for installing the first clamp 2, and the piston 4 is used for driving the connecting rod 3, so that the connecting rod 3 drives the first clamp 2 to rotate. Specifically, as shown in fig. 3, the clip holder 1 is provided with a through hole 11. As shown in fig. 4, the first clamp body 2 includes a first clamping portion 21 and a transmission portion 22, the transmission portion 22 is provided with a first hinge hole 221 and a second hinge hole 222, and the first clamp body 2 is hinged to the clamp base 1 through the first hinge hole 221. One end of the connecting rod 3 penetrates through the through hole 11 and is hinged to the first clamp body 2 through the second hinge hole 222, and the connecting rod 3 and the inner wall of the through hole 11 are arranged at intervals. The piston 4 has a specific structure as shown in fig. 5, and the piston 4 is hinged to the other end of the connecting rod 3. The working principle of the clamp provided by the embodiment is as follows: the piston 4 pushes the connecting rod 3 to move upwards, the connecting rod 3 can slightly swing by taking the hinged position of the connecting rod and the piston 4 as an axis in the pushing process, and meanwhile, the connecting rod 3 pushes the first clamp body 2 to rotate by taking the hinged position of the first clamp body 2 and the clamp body seat 1 as the axis, so that the workpiece is hooked or pulled and the like.

According to the clamp provided by the embodiment, the connecting rod 3 is arranged between the first clamp body 2 and the piston 4, and the connecting rod 3 is utilized to drive the first clamp body 2 to rotate, so that firstly, a special connecting structure such as a clamping hook is not required to be arranged on the piston 4, the structure of the piston 4 is simplified, the processing and forming difficulty of the piston 4 is reduced, and meanwhile, the shape and the structure of the connecting rod 3 are very simple, so that the whole processing difficulty and the processing cost are also greatly reduced; the hinge points are arranged between the connecting rod 3 and the first clamp body 2 and between the connecting rod 3 and the piston 4, and the connecting rod 3 and the inner wall of the through hole 11 are arranged at intervals, so that the movement flexibility of the connecting rod 3 is improved, the piston 4, the connecting rod 3 and the first clamp body 2 are matched more smoothly, and the service life of the clamp is prolonged; finally, the piston 4 and the connecting rod 3 can be separately and independently replaced without replacing all driving components, and the maintenance cost is greatly reduced.

Further, the clamp provided by the embodiment further includes a spring 5 sleeved on the connecting rod 3, and one end of the spring 5 abuts against the clamp body seat 1, and the other end abuts against the piston 4. When the piston 4 pushes the connecting rod 3 to move upwards, the spring 5 is compressed, and after the first clamp body 2 completes the action, the spring 5 extends to reset the piston 4 and simultaneously drive the connecting rod 3 and the first clamp body 2 to reset so that the first clamp body 2 can perform the next action.

In this embodiment, the clamp further includes a cylinder 6, the piston 4 is disposed in the cylinder 6, and the piston 4 can slide along the inner wall of the cylinder 6. The cylinder 6 can guide the piston 4, so that the piston 4 can accurately slide along a straight line.

Optionally, the clamp further comprises a Y-seal 10 disposed between the piston 4 and the barrel 6. The Y-shaped sealing ring 10 is beneficial to ensuring the air tightness between the piston 4 and the inner wall of the cylinder 6 and ensuring the driving force of the gas to the piston 4.

Specifically, one end of the cylinder 6 is provided with a first opening, in which the cartridge holder 1 is partially disposed. In this embodiment, the clip holder 1 is detachably connected to the barrel 6, so that it is more convenient to replace the parts inside the barrel 6.

Optionally, as shown in fig. 1 and fig. 2, the fixture provided in this embodiment further includes an air inlet plug 7, one end of the cylinder 6 is provided with a second opening, the air inlet plug 7 is partially disposed in the second opening, and the air inlet plug 7 is provided with an air inlet hole 71. By arranging the air inlet hole 71 on the air inlet plug 7, the piston 4 is pushed to slide in the cylinder 6 in a pneumatic mode.

Specifically, the intake port 71 includes an intake portion 711 and a throttle portion 712, the diameter of the throttle portion 712 being smaller than the diameter of the intake portion 711. By reducing the diameter of the throttling part 712, not only can the driving force of gas be increased, but also a special throttling device is not required to be arranged, and the production cost is reduced.

Optionally, the air inlet plug 7 is provided with a gas collecting groove 72, and the maximum diameter of the gas collecting groove 72 is smaller than the diameter of the bottom of the piston 4, that is, the bottom of the piston 4 does not extend into the gas collecting groove 72, so as to prevent the bottom of the piston 4 from plugging the throttling part 712, which is not beneficial to further air inlet.

Optionally, in this embodiment, the fixture further includes a second clamp body 8 detachably disposed on the clamp base 1, and the second clamp body 8 is capable of cooperating with the first clamp body 2 to clamp the workpiece. When the workpiece needs to be clamped, the second clamp body 8 can be mounted on the clamp body seat 1, so that the second clamp body 8 and the first clamp body 2 are matched to clamp the workpiece. Specifically, as shown in fig. 6, the second clamping body 8 includes a second clamping portion 81 and a mounting portion 82, the mounting portion 82 has a mounting hole, and the first clamping body 2 is sleeved on the clamping body base 1 through the mounting hole. Of course, in other embodiments, the second clip body 8 can be mounted on the barrel 6, and is not limited herein. In addition, in other embodiments, only the first clamp body 2 may be provided, thereby forming a single finger air clamp for hooking or dragging a workpiece or the like.

Optionally, as shown in fig. 1 and 2, the clamp further includes a clamping piece 9 detachably disposed on the first clamp body 2 and/or the second clamp body 8. By arranging the clamping pieces 9, the service life of the first clamp body 2 and/or the second clamp body 8 can be prolonged. Specifically, the clamping piece 9 is provided with a protrusion which can play a role of skid resistance and increase the friction force between the first clamp body 2 and/or the second clamp body 8 and the workpiece. In this embodiment, the clamping piece 9 is formed by hot pressing rubber, and the rubber can protect the workpiece and prevent the workpiece from being damaged by clamping.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims (10)

1. A clamp, comprising:

the clamp body seat (1) is provided with a through hole (11);

the first clamp body (2) comprises a first clamping part (21) and a transmission part (22), a first hinge hole (221) and a second hinge hole (222) are formed in the transmission part (22), and the first clamp body (2) is hinged with the clamp body seat (1) through the first hinge hole (221);

one end of the connecting rod (3) penetrates through the through hole (11) and is hinged with the first clamp body (2) through the second hinge hole (222), and the connecting rod (3) and the inner wall of the through hole (11) are arranged at intervals;

and the piston (4) is hinged with the other end of the connecting rod (3).

2. The clamp according to claim 1, further comprising a spring (5) sleeved on the connecting rod (3), wherein one end of the spring (5) abuts against the clamp body seat (1), and the other end abuts against the piston (4).

3. The clamp according to claim 1, further comprising a cylinder (6), wherein the piston (4) is disposed within the cylinder (6), and wherein the piston (4) is slidable along an inner wall of the cylinder (6).

4. A clamp as claimed in claim 3, characterized in that one end of the cylinder (6) is provided with a first opening in which the clamp seat (1) is partially provided.

5. The clamp according to claim 3, characterized by further comprising an air inlet plug (7), wherein one end of the cylinder (6) is provided with a second opening, the air inlet plug (7) is partially arranged in the second opening, and an air inlet hole (71) is formed in the air inlet plug (7).

6. The clamp according to claim 5, characterized in that the intake hole (71) comprises an intake portion (711) and a throttle portion (712), the throttle portion (712) having a diameter smaller than the diameter of the intake portion (711).

7. The clamp according to claim 6, characterized in that the air inlet plug (7) is provided with a gas collection groove (72), and the maximum diameter of the gas collection groove (72) is smaller than the diameter of the bottom of the piston (4).

8. The clamp according to claim 1, characterized by further comprising a second clamp body (8) detachably arranged on the clamp base (1), the second clamp body (8) being capable of cooperating with the first clamp body (2) for clamping a workpiece.

9. The clamp according to claim 8, characterized in that it further comprises a clamping jaw (9) removably arranged on said first clamp body (2) and/or on said second clamp body (8).

10. The clamp according to claim 4, further comprising a Y-shaped sealing ring (10) disposed between said piston (4) and said cylinder (6).