A mechanical hand tool with a cylinder clamping mechanism

Abstract

This invention discloses a hydraulic cylinder clamping manipulator attachment in the field of boom technology, comprising a manipulator assembly, a housing assembly, and a rotation and lateral shift assembly. The manipulator assembly is located at the front end of the housing assembly, and the rotation and lateral shift assembly is located at the rear end of the housing assembly. The manipulator assembly includes an arc-shaped clamping claw, a clamping drive hydraulic cylinder, and a hinged bracket, with the arc-shaped clamping claw forming a contact surface with the outer wall of the hydraulic cylinder. The manipulator assembly also includes a tilting drive hydraulic cylinder and a tilting drive shaft for driving the manipulator assembly to tilt relative to the housing assembly. This invention achieves stable clamping, tilting, rotation, and multi-degree-of-freedom posture adjustment of heavy-duty hydraulic cylinders, enabling hydraulic cylinder handling and positioning operations to be completed without auxiliary equipment, thus improving work efficiency and safety.

Description

Technical Field

[0001] This invention relates to a hydraulic cylinder gripping manipulator attachment, belonging to the field of boom technology. Background Technology

[0002] The core feature that distinguishes telescopic boom forklifts from traditional forklifts is their multi-degree-of-freedom operating capability, allowing them to handle heavier materials and lift to greater heights. With their telescopic boom, large operating radius, and high load-bearing capacity, telescopic boom forklifts are widely used in heavy-duty workpiece handling operations in fields such as construction machinery, metallurgy, and mining.

[0003] As a core component of hydraulic systems, hydraulic cylinders are mostly heavy cylindrical structures (weighing up to several tons, with a diameter range of Φ200~Φ600mm). Their handling process must meet two core requirements: stable clamping and multi-position adjustment. First, they must be adapted to the cylindrical shape of the cylinder to ensure that there is no slippage under heavy working conditions. Second, they must be able to flip up and down and rotate around the cylinder to adapt to the posture requirements of installation and transportation.

[0004] Currently, industrial clamping equipment for cylindrical workpieces mainly falls into two categories: one is the lightweight gripper of industrial robotic arms, which is only suitable for small-weight workpieces and lacks heavy-duty design; the other is the universal clamping attachment for forklifts / lift trucks, which are mostly simple opening and closing jaws that can only achieve basic clamping and translation, without flipping or rotating functions. For scenarios where telescopic forklifts are used to move heavy hydraulic cylinders, existing attachments have significant shortcomings: the clamping structure of universal jaws cannot adapt to the heavy-duty clamping requirements of the cylindrical surface of the hydraulic cylinder, and it lacks posture adjustment functions, which means that the movement of the hydraulic cylinder requires the use of auxiliary equipment such as cranes and lifting devices, resulting in a cumbersome and inefficient operation process, as well as the safety hazard of workpiece slippage. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art, and to solve the problem that the existing general gripper clamping structure cannot adapt to the heavy-duty clamping requirements of the cylindrical surface of the hydraulic cylinder, and lacks posture adjustment function, resulting in a cumbersome and inefficient hydraulic cylinder handling process, as well as the problem of workpiece slippage.

[0006] To solve the above-mentioned technical problems, the present invention is implemented using the following technical solution: A hydraulic cylinder gripping manipulator attachment is provided, comprising: a manipulator assembly, a housing assembly, and a rotation and lateral displacement assembly; The robotic arm assembly is located at the front end of the housing assembly, and the rotation and lateral displacement assembly is located at the rear end of the housing assembly. The robotic arm assembly includes an arc-shaped gripper, a gripping drive hydraulic cylinder, and a hinged bracket. The arc-shaped gripper is connected to the hinged bracket and is opened and closed under the drive of the gripping drive hydraulic cylinder. The robotic arm assembly also includes a tilting drive hydraulic cylinder and a tilting drive shaft. The hinged bracket is connected to the housing assembly via the tilting drive shaft and is tilted relative to the housing assembly under the drive of the tilting drive hydraulic cylinder. The rotational lateral displacement assembly includes a turntable and a lateral displacement adjustment mechanism connected to the turntable. The turntable is connected to the housing assembly to enable the lateral displacement adjustment mechanism to drive the turntable to rotate circumferentially and move laterally.

[0007] Furthermore, the arc-shaped clamping claws are configured as two, and a hinge shaft is provided between the two arc-shaped clamping claws. The two arc-shaped clamping claws are synchronously connected through the hinge shaft and connected to the hinge bracket.

[0008] Furthermore, the clamping drive hydraulic cylinder is positioned between the two arc-shaped clamping claws.

[0009] Furthermore, the inner side of the arc-shaped clamping claw is configured with an arc-shaped structure that matches the outer wall of the cylinder; The inner side of the arc-shaped gripper is also provided with an anti-slip structure.

[0010] Furthermore, the tilting drive hydraulic cylinder is connected to the tilting drive shaft and is used to drive the robot arm assembly to tilt within the range of 0-90°.

[0011] Furthermore, the housing assembly is equipped with a transmission gear and a hydraulic valve; the transmission gear meshes with the turntable, and the hydraulic valve drives the turntable to rotate relative to the housing assembly.

[0012] Furthermore, the rotation range of the rotating lateral displacement component is 0-180°.

[0013] Furthermore, the rotary lateral displacement assembly also includes left and right rotary cylinders, left and right rotary shafts, and attachment fixing mechanism; The robotic arm assembly rotates around a left-right rotation axis via a left-right rotation cylinder; the attachment fixing mechanism is installed on an external device for fixing.

[0014] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: This invention employs an arc-shaped clamping claw in conjunction with a clamping-driven hydraulic cylinder to achieve the opening and closing clamping of the hydraulic cylinder. This allows the arc-shaped clamping claw to form a close-fitting surface contact with the outer wall of the hydraulic cylinder, thereby significantly increasing the contact area and improving friction. This effectively avoids the problems of slippage, displacement, or even detachment of heavy-duty hydraulic cylinders during the clamping process. Furthermore, by incorporating a flip-driven hydraulic cylinder within the robotic arm assembly, the robotic arm assembly can flip relative to the housing assembly, thereby enabling the hydraulic cylinder to switch between horizontal and vertical positions. Attached Figure Description

[0015] Figure 1The figure shown is an overall schematic diagram of a hydraulic cylinder clamping manipulator attachment provided in an embodiment of the present invention; Figure 2 The diagram shown is a schematic diagram of the internal structure of a hydraulic cylinder clamping manipulator attachment provided in an embodiment of the present invention. Figure 3 The diagram shown is a schematic diagram of the rotational lateral displacement assembly of a hydraulic cylinder clamping manipulator attachment provided in an embodiment of the present invention.

[0016] In the picture: 1. Robotic arm assembly; 2. Housing assembly; 3. Rotation and lateral movement assembly; 4. Arc-shaped gripper; 5. Grip drive hydraulic cylinder; 6. Hinge bracket; 7. Tilting drive hydraulic cylinder; 8. Hinge shaft; 9. Tilting drive shaft; 10. Moving gear; 11. Valve; 12. Turntable; 13. Lateral movement adjustment mechanism; 14. Left and right rotation cylinder; 15. Left and right rotation shaft; 16. Attachment fixing mechanism. Detailed Implementation

[0017] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments and specific features in the embodiments are detailed descriptions of the technical solution of the present application, rather than limitations thereof. In the absence of conflict, the embodiments and technical features in the embodiments can be combined with each other.

[0018] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0019] like Figure 1 As shown, this embodiment provides a hydraulic cylinder clamping manipulator attachment, including a manipulator assembly 1, a housing assembly 2, and a rotation and lateral shift assembly 3. The manipulator assembly 1 is located at the front end of the housing assembly 2, and the rotation and lateral shift assembly 3 is located at the rear end of the housing assembly 2. The whole assembly is installed on the attachment quick-change device of the telescopic boom forklift through the attachment fixing mechanism 16, and is used to realize the clamping, handling and posture adjustment of heavy hydraulic cylinders.

[0020] like Figure 2As shown, the robotic arm assembly 1 includes an arc-shaped gripper 4, a gripping drive hydraulic cylinder 5, a hinge bracket 6, a tilting drive hydraulic cylinder 7, a tilting drive shaft 9, and a hinge shaft 8. Two arc-shaped grippers 4 are provided, connected by the hinge shaft 8 and mounted on the hinge bracket 6. The gripping drive hydraulic cylinder 5 is positioned between the two arc-shaped grippers 4 and is connected to them via a transmission mechanism. It drives the two arc-shaped grippers 4 to open and close synchronously, thereby achieving gripping or releasing of the hydraulic cylinder.

[0021] The inner side of the arc-shaped clamping claw 4 is configured with an arc-shaped structure that matches the outer wall of the oil cylinder, so that the line contact is changed to surface contact during the clamping process, thereby improving the clamping stability; the inner side of the arc-shaped clamping claw 4 is also provided with an anti-slip structure, preferably an anti-slip tooth pattern or a wear-resistant anti-slip material layer, to further increase the friction.

[0022] The hinge bracket 6 is connected to the front end of the housing assembly 2 via the flip drive shaft 9. The flip drive hydraulic cylinder 7 is connected to the flip drive shaft 9 and is used to drive the robot arm assembly 1 to flip relative to the housing assembly 2 in the vertical plane. The flip angle range is 0°-90°.

[0023] The housing assembly 2 is a closed housing structure. Inside the housing assembly 2 are components such as transmission gear 10, hydraulic valve 11, hydraulic pump station and hydraulic pipeline. The hydraulic valve 11 is used to control the hydraulic actuators in the clamping drive hydraulic cylinder 5, the tilting drive hydraulic cylinder 7 and the rotation and lateral displacement assembly 3. The hydraulic pump station is used to provide a power source. The hydraulic pipeline is used to realize the hydraulic connection between the actuators.

[0024] like Figure 2 and Figure 3 As shown, the rotating lateral displacement assembly 3 includes a turntable 12, a lateral displacement adjustment mechanism 13, a left and right rotating hydraulic cylinder 14, a left and right rotating shaft 15, and an attachment fixing mechanism 16. The turntable 12 is mounted on the lateral displacement adjustment mechanism 13 and is connected to the housing assembly 2 via a transmission gear 10. Under hydraulic drive, the transmission gear 10 drives the turntable 12 to rotate around its axis, thereby driving the entire housing assembly 2 and the robot arm assembly 1 to rotate circumferentially, with a rotation range of 0-180°.

[0025] The lateral shift adjustment mechanism 13 is used to drive the turntable 12 to move laterally in the horizontal direction in order to adjust the spatial position of the robot arm assembly 1.

[0026] The attachment fixing mechanism 16 is located at the tail of the rotating side-shifting assembly 3 and is used to connect with the attachment quick-change device of the telescopic boom forklift.

[0027] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A hydraulic cylinder gripping manipulator attachment, characterized in that: include: Robotic arm assembly (1), housing assembly (2) and rotational lateral displacement assembly (3); The robotic arm assembly (1) is located at the front end of the housing assembly (2), and the rotating lateral displacement assembly (3) is located at the rear end of the housing assembly (2). The robotic arm assembly (1) includes an arc-shaped gripper (4), a gripping drive hydraulic cylinder (5), and a hinge bracket (6). The arc-shaped gripper (4) is connected to the hinge bracket (6) and is opened and closed under the drive of the gripping drive hydraulic cylinder (5). The robotic arm assembly (1) also includes a tilting drive hydraulic cylinder (7) and a tilting drive shaft (9). The hinge bracket (6) is connected to the housing assembly (2) through the tilting drive shaft (9) and tilts relative to the housing assembly (2) under the drive of the tilting drive hydraulic cylinder (7). The rotational lateral displacement assembly (3) includes a turntable (12) and a lateral displacement adjustment mechanism (13) connected to the turntable (12). The turntable (12) is connected to the housing assembly (2) to enable the lateral displacement adjustment mechanism (13) to drive the turntable (12) to rotate circumferentially and move laterally.

2. The hydraulic cylinder clamping manipulator attachment according to claim 1, characterized in that, The arc-shaped clamping claws (4) are configured as two, and a hinge shaft (8) is provided between the two arc-shaped clamping claws (4). The two arc-shaped clamping claws (4) are synchronously connected through the hinge shaft (8) and connected to the hinge bracket (6).

3. The hydraulic cylinder clamping manipulator attachment according to claim 2, characterized in that, The clamping drive hydraulic cylinder (5) is positioned between two arc-shaped clamping claws (4).

4. The hydraulic cylinder clamping manipulator attachment according to claim 1, characterized in that, The inner side of the arc-shaped clamping claw (4) is configured with an arc-shaped structure that matches the outer wall of the oil cylinder; The inner side of the arc-shaped gripper (4) is also provided with an anti-slip structure.

5. The hydraulic cylinder clamping manipulator attachment according to claim 1, characterized in that, The flipping drive hydraulic cylinder (7) is connected to the flipping drive shaft (9) and is used to drive the robot arm assembly (1) to flip within the range of 0-90°.

6. The hydraulic cylinder clamping manipulator attachment according to claim 1, characterized in that, The housing assembly (2) is equipped with a transmission gear (10) and a hydraulic valve (11); the transmission gear (10) meshes with the turntable (12) and drives the turntable (12) to rotate relative to the housing assembly (2) through the hydraulic valve (11).

7. The hydraulic cylinder clamping manipulator attachment according to claim 1, characterized in that, The rotation range of the rotational lateral displacement component (3) is 0-180°.

8. The hydraulic cylinder clamping manipulator attachment according to claim 1, characterized in that, The rotary lateral displacement assembly (3) also includes a left and right rotary cylinder (14), a left and right rotary shaft (15), and an attachment fixing mechanism (16). The robotic arm assembly (1) rotates around the left and right rotation axis (15) via a left and right rotating cylinder (14); the attachment fixing mechanism (16) is installed on an external device for fixing.

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