Automatic steel clamping tool

Abstract

The utility model relates to an automatic steel clamping tool, and relates to the technical field of steel machining, the automatic steel clamping tool comprises a frame body, two first clamping arms hinged to each other, two second clamping arms hinged to each other, a first air cylinder and a second air cylinder, the two ends of the first air cylinder are hinged to the upper ends of the two first clamping arms correspondingly, and the two ends of the second air cylinder are hinged to the upper ends of the two second clamping arms correspondingly; a clamping block is fixed to the lower portion of the first clamping arm, and a supporting plate is fixed to the bottom end of the second clamping arm. The two first clamping arms are hinged through a first hinge shaft, the first hinge shaft is fixed to the frame body, the first air cylinder is sleeved with a first guide cylinder in a sliding mode, and the first guide cylinder is connected with the frame body in a sliding mode in the vertical direction. By means of the device, after steel is clamped by the clamping blocks, the second air cylinder is controlled to act to enable the two supporting plates to be close to and located below the steel, and the safety function of falling prevention is achieved.

Description

Technical Field

[0001] This application relates to the technical field of steel processing, and particularly relates to an automatic clamping tooling for steel. Background Art

[0002] During the production and processing of steel, clamping tooling is often required. The clamping tooling clamps the steel, and at the same time, combines with lifting equipment such as traveling cranes and overhead cranes to move the steel.

[0003] The existing utility model patent with the publication number CN211250081U discloses a manipulator grasping fixture, which includes two longitudinally arranged beams arranged in parallel. A plurality of transverse beams are fixed between the two longitudinally arranged beams. A plurality of cylinder groups are fixed on the two longitudinally arranged beams. Each cylinder group is composed of two corresponding cylinders. The two cylinders are symmetrically distributed on the two longitudinally arranged beams. The cylinder mainly consists of a cylinder body, a fixed ear, a nozzle, and a clamping plate. Fixed ears are arranged on both sides of the top of the cylinder body. Nozzles are arranged on both sides of the cylinder body. The clamping plate is fixed to the cylinder body through a cylinder guide post.

[0004] The clamping structure of the fixture for clamping steel is similar to the related technology above. Since the steel is placed on the tabletop and the bottom cannot be clamped, the existing technology clamps the steel from both sides of the steel. However, if the steel is only clamped and fixed from both sides, there is still a safety hazard of falling downward if it is impacted or the clamping mechanism becomes loose. Utility Model Content

[0005] This application provides an automatic clamping tooling for steel, which can provide insurance support for the bottom of the steel and reduce the safety hazard of falling downward.

[0006] An automatic clamping tooling for steel provided by this application adopts the following technical solutions:

[0007] An automatic clamping tooling for steel includes a frame body, two mutually hinged clamping arms one, two mutually hinged clamping arms two, a cylinder one, and a cylinder two. The two ends of the cylinder one are respectively hinged to the upper ends of the two clamping arms one. The two ends of the cylinder two are respectively hinged to the upper ends of the two clamping arms two. A clamping block is fixed to the lower part of the clamping arm one. A support plate is fixed to the bottom end of the clamping arm two.

[0008] By adopting the above technical solutions, the clamping block is used to clamp the steel from both sides of the steel. The mutual separation and approach of the two clamping blocks are controlled by the cylinder one. The support plate provides an insurance effect for the steel above. The mutual separation and approach of the two support plates are controlled by the cylinder two. In case the steel breaks away from the clamping block and slides down, the support plate will support the steel to prevent safety accidents from occurring.

[0009] Optionally, the two clamping arms are hinged through a first hinge shaft, the first hinge shaft is fixed to the frame body, a first guide cylinder is sleeved outside the first cylinder, and the first guide cylinder is slidably connected to the frame body in the vertical direction.

[0010] By adopting the above technical solution, the first cylinder is restricted by the first guide cylinder, so that the first cylinder can only be in a horizontal state. By reducing the degree of freedom of the first cylinder and combining the structure in which the first hinge shaft is fixed to the frame body, when the first cylinder expands and contracts, the two clamping arms move symmetrically, that is, the two clamping blocks approach or move away synchronously, which is convenient for aligning the steel for clamping or placing it at the position to be loaded, and it is not easy to produce position deviation.

[0011] Optionally, a first guide rod extending in the vertical direction is fixed on the first guide cylinder, and a first guide hole for the first guide rod to slide is formed on the frame body.

[0012] By adopting the above technical solution, the first guide rod is restricted by the first guide hole, so that the first guide rod can only move vertically and cannot swing left and right, thereby realizing the vertical movement of the first guide cylinder.

[0013] Optionally, the two clamping arms are hinged through a second hinge shaft, the second hinge shaft is fixed to the frame body, a second guide cylinder is sleeved outside the second cylinder, and the second guide cylinder is slidably connected to the frame body in the vertical direction.

[0014] By adopting the above technical solution, the second cylinder is restricted by the second guide cylinder, so that the second cylinder can only be in a horizontal state. By reducing the degree of freedom of the second cylinder and combining the structure in which the second hinge shaft is fixed to the frame body, when the second cylinder expands and contracts, the two clamping arms move symmetrically, that is, the two support plates approach or move away synchronously, and there will be no situation of asymmetric movement.

[0015] Optionally, a second guide rod extending in the vertical direction is fixed on the second guide cylinder, and a second guide hole for the second guide rod to slide is formed on the frame body.

[0016] By adopting the above technical solution, the second guide rod is restricted by the second guide hole, so that the second guide rod can only move vertically and cannot swing left and right, thereby realizing the vertical movement of the second guide cylinder.

[0017] Optionally, when the second cylinder is shortened to the minimum length, the top surfaces of the two support plates are in the same horizontal plane.

[0018] By adopting the above technical solution, through the top surface of the support plate in the horizontal plane, the contact surface with the steel is larger, and the supporting effect on the steel is better.

[0019] Optionally, a flexible pad is fixed on the top surface of the support plate.

[0020] By adopting the above technical solution, the flexible pad plays a buffering effect on the falling steel and reduces the knocking sound.

[0021] Optionally, the faces of the two clamping blocks facing each other are arc-shaped surfaces, and a rubber layer is fixed on these surfaces.

[0022] By adopting the above technical solution, the outer side walls of steel materials with different shapes can be clamped through the arc-shaped surfaces and the rubber layer, the damage to the surface of the steel materials can be reduced, and the friction force on the steel materials can be increased.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. After the steel material is picked up by the clamping blocks, the second cylinder is controlled to act to move the two support plates close to and under the steel material, playing an insurance function against falling.

[0025] 2. The two clamping arms move symmetrically, that is, the two clamping blocks approach or move away synchronously, which is convenient for aligning the steel material for clamping or placing it at the position to be loaded with materials, and it is not easy to generate position deviation. Description of the Drawings

[0026] Figure 1 is a perspective view of an automatic steel material clamping tooling in Embodiment 1;

[0027] Figure 2 is a partial cross-sectional view of the front of Embodiment 1;

[0028] Figure 3 is a structural diagram of the first clamping arm in Embodiment 2.

[0029] Description of the reference numerals: 10, frame body; 1, first clamping arm; 2, second clamping arm; 3, first cylinder; 4, second cylinder; 100, hanging plate; 11, first hinge shaft; 21, second hinge shaft; 12, clamping block; 13, rubber layer; 31, first guide cylinder; 32, first guide rod; 101, first guide hole; 22, support plate; 23, flexible pad; 41, second guide cylinder; 42, second guide rod; 102, second guide hole. Detailed Description of the Embodiment

[0030] The following further describes the present application in detail with reference to the drawings.

[0031] Embodiment 1:

[0032] Referring to Figure 1 and Figure 2 , this embodiment discloses an automatic steel material clamping tooling, which includes a frame body 10, two mutually hinged first clamping arms 1, two mutually hinged second clamping arms 2, a first cylinder 3, and a second cylinder 4. A plurality of hanging plates 100 are fixed to the top of the frame body 10 for connecting a hoisting device.

[0033] The two first clamping arms 1 of this embodiment cross to form an X shape. A hinge is established between the two first clamping arms 1 through a first hinge shaft 11, and the first hinge shaft 11 is fixed to the frame body 10; the two second clamping arms 2 also cross to form an X shape. A hinge is established between the two second clamping arms 2 through a second hinge shaft 21, and the second hinge shaft 21 is fixed to the frame body 10. The first hinge shaft 11 and the second hinge shaft 21 are coaxially arranged and fixed at the ends.

[0034] A clamping block 12 is fixed to the lower part of the first clamping arm 1. The clamping block 12 is located inside the two first clamping arms 1. Multiple clamping blocks 12 can be provided for clamping steel. The mutually facing surfaces of the two side clamping blocks 12 are arc-shaped surfaces, and a rubber layer 13 is fixed on this surface. Through the arc-shaped surface and the rubber layer 13, the outer side walls of steel with different shapes can be clamped, reducing damage to the steel surface and increasing the friction force on the steel.

[0035] Both ends of the first cylinder 3 are respectively hinged to the upper ends of the two first clamping arms 1. When the first cylinder 3 expands and contracts, it drives the two first clamping arms 1 to rotate. When the first cylinder 3 extends, the lower ends of the two first clamping arms 1 move away from each other, thus loosening the steel; when the first cylinder 3 contracts, the lower ends of the two first clamping arms 1 move closer to each other, thus clamping the steel.

[0036] A first guide cylinder 31 is sleeved outside the first cylinder 3 in a sliding manner. The first guide cylinder 31 is slidably connected to the frame body 10 in the vertical direction. Specifically, a first guide rod 32 extending in the vertical direction is fixed to the first guide cylinder 31, and a first guide hole 101 for the first guide rod 32 to slide is opened on the frame body 10. By restricting the first guide rod 32 through the first guide hole 101, the first guide rod 32 can only move vertically and cannot swing left and right. By restricting the first cylinder 3 through the first guide cylinder 31, the first cylinder 3 can only be in a horizontal state. By reducing the degree of freedom of the first cylinder 3 and combining the structure where the first hinge shaft 11 is fixed to the frame body 10, when the first cylinder 3 expands and contracts, the two first clamping arms 1 move symmetrically, that is, the two side clamping blocks 12 approach or move away synchronously, which is convenient for aligning the steel for clamping or aligning the position for placing the material to be placed, and it is not easy to generate position deviation. When the two first clamping arms 1 rotate relative to each other, the first cylinder 3 slides adaptively in the first guide cylinder 31, and the first guide rod 32 rises and falls adaptively in the first guide hole 101.

[0037] A support plate 22 is fixed to the bottom end of the second clamping arm 2, and a flexible pad 23 is fixed to the top surface of the support plate 22. The support plate 22 provides an insurance effect for the steel above. In case the steel breaks away from the clamping block 12 and slides down, the support plate 22 will support the steel to prevent the occurrence of safety accidents. The flexible pad 23 provides a buffering effect for the falling steel and reduces the knocking sound. When the second cylinder 4 contracts to the minimum length, the top surfaces of the two support plates 22 are in the same horizontal plane. Through the top surface of the support plate 22 in the horizontal plane, the contact surface with the steel is larger, the supporting effect on the steel is better, and it can prevent the bottom surface of the steel from being damaged by impact.

[0038] Both ends of the second cylinder 4 are respectively hinged to the upper ends of the two second clamping arms 2. When the second cylinder 4 expands and contracts, it drives the two second clamping arms 2 to rotate. When the second cylinder 4 extends, the lower ends of the two second clamping arms 2 move away from each other, so that the steel can pass through between the two support plates 22; when the second cylinder 4 contracts, the lower ends of the two second clamping arms 2 move closer to each other, so that the two support plates 22 move closer to each other, and the support plates 22 move to the bottom of the steel for insurance.

[0039] A second guide cylinder 41 is sleeved outside the second cylinder 4 in a sliding manner, and the second guide cylinder 41 is slidably connected to the frame 10 in the vertical direction. Specifically, a second guide rod 42 extending in the vertical direction is fixed on the second guide cylinder 41, and a second guide hole 102 for the second guide rod 42 to slide is formed in the frame 10. The functions of the second guide cylinder 41, the second guide rod 42, and the second guide hole 102 are to realize the symmetrical actions of the two second clamping arms 2 when the second cylinder 4 expands and contracts, that is, the two support plates 22 approach or move away synchronously. The principle is the same as that of the above-mentioned first guide cylinder 31, first guide rod 32, and first guide hole 101, and will not be elaborated here.

[0040] The implementation principle of the automatic steel clamping tooling in the embodiment of the present application is as follows: This clamping tooling is used in multiple numbers. By arranging multiple such clamping toolings on the hoisting tool in a straight line direction, the long-strip steel is clamped.

[0041] The operator controls the actions of the first cylinder 3 and the second cylinder 4 through the controller, so as to realize the opening or contraction of the two first clamping arms 1 and the two second clamping arms 2. When the lower ends of the two first clamping arms 1 move away from each other and the lower ends of the two first clamping arms 1 also move away from each other, the operator lowers the height of the frame 10 through the hoisting equipment, so that the steel to be hoisted passes through the two support plates 22 and is located between the two side clamping blocks 12. Then control the first cylinder 3 to act to close the two side clamping blocks 12 to clamp the steel, and then raise the frame 10 through the hoisting equipment. After the steel leaves the bearing surface, control the second cylinder 4 to act to close the two support plates 22 and locate them below the steel, playing an anti-falling insurance function.

[0042] It should be noted that when the clamping block 12 normally clamps the steel, the top surface of the support plate 22 does not touch the steel.

[0043] Embodiment 2:

[0044] An automatic steel clamping tooling, the difference between Embodiment 2 and Embodiment 1 is that:

[0045] Referring to Figure 3 , the two first clamping arms 1 are not crossed in an X shape, but are symmetrically arranged left and right. The top and bottom ends of one of the first clamping arms 1 are both on the left side, and the top and bottom ends of the other first clamping arm 1 are both on the right side.

[0046] When the first cylinder 3 extends, the lower ends of the two first clamping arms 1 approach each other to clamp the steel; when the first cylinder 3 contracts, the lower ends of the two first clamping arms 1 move away from each other to release the steel.

[0047] The structure of the first clamping arm 1 in this embodiment can also achieve clamping and releasing of the steel.

[0048] The above are all preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. An automatic steel clamping tool, characterized in that: The invention comprises a frame (10), two mutually hinged clamping arms (1), two mutually hinged clamping arms (2), a cylinder (3), and a cylinder (4), wherein the two ends of the cylinder (3) are respectively hinged to the upper ends of the two clamping arms (1), and the two ends of the cylinder (4) are respectively hinged to the upper ends of the two clamping arms (2). A clamping block (12) is fixed to the lower part of the clamping arm (1), and a support plate (22) is fixed to the bottom end of the clamping arm (2).

2. The automatic steel clamping tool according to claim 1 is characterized in that: The two clamp arms (1) are hingedly connected via a hinge shaft (11), the hinge shaft (11) is fixed to the frame (10), and a guide sleeve (31) is provided on the outer sliding sleeve of the cylinder (3), and the guide sleeve (31) is slidably connected to the frame (10) along the vertical direction.

3. The automatic steel clamping tool according to claim 2 is characterized in that: A guide rod (32) extending in a vertical direction is fixed on the guide cylinder (31), and a guide hole (101) for the guide rod (32) to slide is provided on the frame (10).

4. The automatic steel clamping tool according to claim 1 is characterized in that: The two clamp arms (2) are hingedly connected via a hinge shaft (21), the hinge shaft (21) is fixed to the frame (10), and a guide sleeve (41) is provided on the outer sliding sleeve of the cylinder (4), and the guide sleeve (41) is slidably connected to the frame (10) along the vertical direction.

5. The automatic steel clamping tool according to claim 4 is characterized in that: A second guide rod (42) extending in a vertical direction is fixed on the second guide cylinder (41), and a second guide hole (102) for the second guide rod (42) to slide is provided on the frame (10).

6. The automatic steel clamping tool according to claim 1 is characterized in that: When the second cylinder (4) is shortened to a minimum length, the top surfaces of the two support plates (22) are in the same horizontal plane.

7. The automatic steel clamping tool according to claim 1 is characterized in that: A flexible pad (23) is fixed to the top surface of the support plate (22).

8. The automatic steel clamping tool according to claim 1 is characterized in that: The surfaces of the two clamping blocks (12) facing each other are arc-shaped surfaces, and a rubber layer (13) is fixed on the surfaces.

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