Automatic clamping device
An automated clamping device that uses gear meshing and linkage assembly solves the problems of slow clamping speed and weak clamping force in existing technologies, achieving rapid clamping and efficient production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 王双华
- Filing Date
- 2025-03-27
- Publication Date
- 2026-05-01
AI Technical Summary
The existing gripping devices use a separate drive mechanism to drive the clamping plates, resulting in slow gripping speed and weak clamping force, which affects production efficiency and cost.
The gears in the gearbox mesh with the connecting rod assembly, and the hydraulic cylinder drives the synchronous movement of the two clamping plates, thereby improving the clamping force and speed.
It achieves rapid clamping, improves production efficiency, prevents workpiece loosening, has a simple structure, low cost, and is easy to maintain.
Smart Images

Figure CN224183077U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of clamping technology, and in particular relates to an automated clamping device. Background Technology
[0002] In today's world, with the rapid advancement of technology, the biggest difference between automated machine tools and humans lies in their dexterity and endurance. The greatest advantage of automated machine tools is their ability to repeatedly perform the same actions without ever feeling tired under normal operating conditions. The application of gripping devices will become increasingly widespread. Gripping devices are a type of high-tech automated production equipment developed in recent decades. Automatic gripping devices are automated operating devices used to grasp, transport, or operate tools according to a fixed program. Their characteristic is that they can be programmed to complete various expected tasks, combining the advantages of both humans and automated machines in their structure and performance. Automatic gripping devices can replace heavy human labor to achieve mechanization and automation of production. They can operate in hazardous environments to protect personal safety, and are therefore widely used in machinery manufacturing, metallurgy, electronics, light industry, and nuclear energy sectors. Automatic gripping devices mainly consist of three parts: the actuator, the drive mechanism, and the control system. The hand is the component used to grasp the workpiece (or tool). Depending on the shape, size, weight, material, and operational requirements of the object being grasped, there are various structural forms, such as clamping, supporting, and adsorption types. The motion mechanism enables the hand to perform various rotational (swinging), moving, or combined movements to achieve the prescribed actions and change the position and posture of the grasped object. The control system completes specific actions by controlling the motors of each degree of freedom of the automatic gripping device.
[0003] In existing gripping devices, each of the two clamping plates is driven by a separate drive mechanism, causing the two clamping plates to move closer or further apart to complete the gripping action. This method results in low manufacturing costs, but slow gripping speed, which affects production efficiency, and also results in weak clamping force. Utility Model Content
[0004] The purpose of this invention is to provide an automated gripping device to solve the technical problems mentioned in the background art.
[0005] To achieve the above objectives, the specific technical solution of this utility model is as follows: An automated clamping device includes a top frame, a gearbox is provided at the bottom middle of the top frame, two symmetrically distributed connecting rod assemblies are rotatably connected to the gearbox, a mounting plate is rotatably connected to the bottom of the connecting rod assembly, a fixing plate is provided at the bottom of the mounting plate, and clamping plates are connected to opposite sides of the two fixing plates via connecting columns. A drive mechanism for driving the two sets of connecting rod assemblies to move synchronously is provided on the top frame and the gearbox.
[0006] Preferably, the gearbox cavity is provided with two symmetrically distributed gears, which are rotatably connected and mesh with each other.
[0007] Preferably, the connecting rod assembly includes two connecting plates and a connecting rod. The top ends of the two connecting plates are fixedly connected to the shaft of the gear, and the bottom ends of the two connecting plates are rotatably connected to the upper surface of the mounting plate via a rotating shaft. The top end of the connecting rod is rotatably connected to the end side wall of the gearbox, and the bottom end of the connecting rod is rotatably connected to the upper surface of the mounting plate via a rotating shaft.
[0008] Preferably, the drive mechanism includes a hydraulic cylinder, the piston rod end of which is rotatably connected to a V-shaped rod via a rotating shaft, and the other end of the V-shaped rod is connected to the shaft of one of the gears.
[0009] Preferably, the top end of the hydraulic cylinder is rotatably connected to the side wall of the top frame via a rotating shaft.
[0010] Preferably, reinforcing plates are provided between the two sides of the fixing plate and the mounting plate.
[0011] Preferably, V-shaped grooves are provided on opposite sides of both clamping plates.
[0012] The automated clamping device of this utility model has the following advantages:
[0013] This invention enables synchronous movement of two clamping plates through the cooperation of two gears and two sets of connecting rod assemblies, achieving rapid clamping and thus improving production efficiency. It also provides strong clamping force, effectively preventing workpiece loosening. The structure is simple, the manufacturing cost is low, it is easy to maintain, and it is highly practical. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 for Figure 1 Front view;
[0017] Figure 3 This is a schematic diagram of the internal structure of the gearbox in this utility model.
[0018] The markings in the diagram are as follows: 1. Top frame; 2. Gearbox; 3. Hydraulic cylinder; 4. Connecting plate; 5. Connecting rod; 6. Mounting plate; 7. Fixing plate; 8. Clamping plate; 9. Reinforcing plate; 10. Connecting column; 11. V-bar; 12. Gear. Detailed Implementation
[0019] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.
[0020] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.
[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0022] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.
[0023] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.
[0024] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of an automated gripping device.
[0025] like Figure 1-3 As shown, this utility model discloses an automated clamping device, including a top frame 1. A gearbox 2 is located at the bottom center of the top frame 1. Two symmetrically distributed gears 12 are arranged inside the gearbox 2, rotatably connected and meshing with each other. When one gear 12 rotates, it drives the other gear 12 to rotate. Two symmetrically distributed connecting rod assemblies are rotatably connected to the gearbox 2. Each connecting rod assembly includes two connecting plates 4 and a connecting rod 5. The top ends of the two connecting plates 4 are fixedly connected to the shafts of the gears 12, and the bottom ends of the two connecting plates 4 are rotatably connected to the upper surface of the mounting plate 6 via a rotating shaft. The top end of the connecting rod 5 is rotatably connected to the end side wall of the gearbox 2, and the bottom end of the connecting rod 5 is rotatably connected to the upper surface of the mounting plate 6 via a rotating shaft. Since the two sets of connecting rod assemblies are respectively connected to the two gears 12, when one gear 12 rotates, it drives the other gear 12 to rotate, thereby causing the two sets of connecting rod assemblies to move simultaneously. This causes the two clamping plates 8 to move closer or further apart, thus achieving the clamping and releasing of the workpiece.
[0026] A mounting plate 6 is rotatably connected to the bottom of the connecting rod assembly. A fixing plate 7 is provided at the bottom of the mounting plate 6. Reinforcing plates 9 are provided between the fixing plate 7 and the mounting plate 6 on both sides, thereby increasing the strength of the fixing plate 7. Clamping plates 8 are connected to opposite sides of the two fixing plates 7 via connecting posts 10. V-grooves are provided on opposite sides of the two clamping plates 8, which facilitates the clamping of workpieces. The top frame 1 and gearbox 2 are equipped with a drive mechanism for driving the synchronous movement of two sets of linkage assemblies. The drive mechanism includes a hydraulic cylinder 3. The piston rod end of the hydraulic cylinder 3 is rotatably connected to a V-shaped rod 11 via a rotating shaft. The other end of the V-shaped rod 11 is connected to the shaft of one of the gears 12. The top end of the hydraulic cylinder 3 is rotatably connected to the side wall of the top frame 1 via a rotating shaft. By activating the hydraulic cylinder 3, the piston rod of the hydraulic cylinder 3 pushes or pulls the V-shaped rod 11, thereby causing the V-shaped rod 11 to drive the gear 12 connected to it to rotate, thereby causing the gear 12 to drive the other gear 12 to rotate, thus realizing the simultaneous movement of the two sets of linkage assemblies.
[0027] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.
Claims
1. An automated gripping device, characterized in that: The device includes a top frame (1), a gearbox (2) is provided at the bottom middle part of the top frame (1), two symmetrically distributed connecting rod assemblies are rotatably connected to the gearbox (2), a mounting plate (6) is rotatably connected to the bottom of the connecting rod assembly, a fixing plate (7) is provided at the bottom of the mounting plate (6), and a clamping plate (8) is connected to the opposite side of the two fixing plates (7) through a connecting column (10). The top frame (1) and the gearbox (2) are provided with a drive mechanism for driving the two sets of connecting rod assemblies to move synchronously. The gearbox (2) has two symmetrically distributed gears (12) inside, which are rotatably connected and mesh with each other; The connecting rod assembly includes two connecting plates (4) and a connecting rod (5). The top ends of the two connecting plates (4) are fixedly connected to the shaft of the gear (12). The bottom ends of the two connecting plates (4) are rotatably connected to the upper surface of the mounting plate (6) through a rotating shaft. The top end of the connecting rod (5) is rotatably connected to the end side wall of the gearbox (2). The bottom end of the connecting rod (5) is rotatably connected to the upper surface of the mounting plate (6) through a rotating shaft.
2. The automated gripping device according to claim 1, characterized in that: The drive mechanism includes a hydraulic cylinder (3), and the piston rod end of the hydraulic cylinder (3) is rotatably connected to a V-shaped rod (11) via a rotating shaft. The other end of the V-shaped rod (11) is connected to the shaft of one of the gears (12).
3. The automated gripping device according to claim 2, characterized in that: The top of the hydraulic cylinder (3) is rotatably connected to the side wall of the top frame (1) via a rotating shaft.
4. The automated gripping device according to claim 1, characterized in that: Reinforcing plates (9) are provided between the two sides of the fixing plate (7) and the mounting plate (6).
5. An automated gripping device according to claim 1, characterized in that: Both clamping plates (8) have V-shaped grooves on opposite sides.