An adjustable stroke mechanical drive linkage

Abstract

The utility model relates to transmission connecting rod technical field, concretely relates to a kind of mechanical transmission connecting rod device of adjustable stroke, including power pole, and power pole is slidably connected with mounting plate, and several connecting plates are fixedly installed on mounting plate;Power pole is equipped with connecting rod assembly between connecting plate, and connecting rod assembly is used to the clamping of goods in the mechanical arm of robot, and connecting rod assembly includes the clamping lever of rotationally connected on connecting plate, and clamping lever is equipped with transmission rod, and transmission rod is equipped with short pole.The utility model makes the mechanical arm to the goods when being grabbed, power pole moves downward and pushes short pole to move, and short pole makes the clamping lever rotate and unfold on connecting plate by pushing transmission rod, so that the grab plate can unfold and grab goods, and power pole can also make the clamping lever rotate and contract by moving upward and resetting, so that the grab plate contracts and tightens, compared with the way of using simple connecting rod to clamp goods, it is more stable, and it is not easy to fall off.

Description

Technical Field

[0001] This utility model relates to the field of transmission linkage technology, and in particular to a mechanical transmission linkage device with adjustable stroke. Background Technology

[0002] A transmission link is a mechanical component that transmits, converts, or changes the direction of rotary motion, linear motion, or other forms of motion. It is widely used in various mechanical equipment to achieve complex motion control or power transmission. For example, transmission links are often used in the field of robotics. Series or parallel link mechanisms form robotic arms to achieve precise grasping, handling, or assembly operations.

[0003] In the robotic arm, although the transmission linkage can be used to extend and retract the arm to lift goods, the transmission linkage of the mechanical gripper is relatively simple and can only perform simple gripping actions. The linkage structure is used to push the gripping plate to grip the goods. This gripping method has poor stability and is prone to the risk of the goods falling off.

[0004] To address this, an adjustable stroke mechanical transmission linkage device is proposed. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable stroke mechanical transmission linkage device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable stroke mechanical transmission linkage device, including a power rod, a mounting plate slidably connected to the power rod, and a plurality of connecting plates fixedly mounted on the mounting plate; a linkage assembly is provided between the power rod and the connecting plates, the linkage assembly being used for gripping goods in the robotic arm of a robot, the linkage assembly including a clamping rod rotatably connected to the connecting plate, a transmission rod provided on the clamping rod, and a short rod provided on the transmission rod.

[0007] Preferably, a connecting cover is fixedly connected to the mounting plate, and a drive assembly is fixedly connected to the power rod, with the drive assembly fixedly installed in the connecting cover.

[0008] Preferably, the short rod is fixedly connected to the power rod, and the transmission rod is movably connected between the short rod and the clamping rod.

[0009] Preferably, a gripping plate is fixedly installed on the clamping rod, and the gripping plate is provided with an anti-slip rubber pad.

[0010] Preferably, a movable rod is fixedly connected to the connecting cover, and a protruding edge is fixedly connected to the movable rod.

[0011] Preferably, the movable rod is provided with a transmission tube, and a limiting groove is formed on the inner wall of the transmission tube, with the convex edge slidably connected in the limiting groove.

[0012] Preferably, a threaded rod is rotatably connected to the transmission tube, and the threaded rod is connected to the movable rod threaded rod. A motor is fixedly installed on the transmission tube, and the output shaft of the motor is fixedly connected to the threaded rod.

[0013] The beneficial effects of this utility model are:

[0014] This invention utilizes a linkage assembly so that when the robotic arm grips goods, the power rod moves downward to push the short rod, which in turn pushes the transmission rod to rotate and unfold the gripping rod on the connecting plate. This allows the gripping plate to unfold and grip the goods. Conversely, when the power rod moves upward to reset, it also causes the gripping rod to rotate and retract, thus retracting the gripping plate and securing the goods. Compared to using a simple linkage to grip goods, this method offers higher stability and prevents the goods from easily falling off. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of an adjustable stroke mechanical transmission linkage device according to an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the connecting plate structure of an adjustable stroke mechanical transmission linkage device according to an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the transmission tube structure of an adjustable stroke mechanical transmission linkage device according to an embodiment of the present invention;

[0019] Figure 4 This is a cross-sectional view of the transmission tube of an adjustable stroke mechanical transmission linkage device according to an embodiment of the present invention.

[0020] The markings in the diagram are: 1. Power rod; 2. Mounting plate; 3. Connecting plate; 4. Clamping rod; 5. Transmission rod; 6. Short rod; 7. Connecting cover; 8. Drive assembly; 9. Grip plate; 10. Movable rod; 11. Protruding edge; 12. Transmission tube; 13. Limiting groove; 14. Threaded rod; 15. Motor. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0022] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] like Figures 1 to 4 As shown in the figure, a specific embodiment of this utility model provides an adjustable stroke mechanical transmission linkage device, including a power rod 1, a mounting plate 2 slidably connected to the power rod 1, and a plurality of connecting plates 3 fixedly installed on the mounting plate 2; a linkage assembly is provided between the power rod 1 and the connecting plates 3, the linkage assembly is used for gripping goods in the robot's robotic arm, by setting the linkage assembly, the robotic arm can be made more stable in the process of gripping goods, replacing the way of gripping goods with a gripping plate, and using a way similar to human hand gripping to grip the goods, which is not easy to fall off. The linkage assembly includes a gripping rod 4 rotatably connected to the connecting plate 3, a transmission rod 5 provided on the gripping rod 4, and a short rod 6 provided on the transmission rod 5.

[0024] like Figures 1 to 4As shown, specifically, a connecting cover 7 is fixedly connected to the mounting plate 2, and a drive assembly 8 is fixedly connected to the power rod 1, with the drive assembly 8 fixedly installed in the connecting cover 7. A short rod 6 is fixedly connected to the power rod 1, and a transmission rod 5 is movably connected between the short rod 6 and the clamping rod 4. A gripping plate 9 is fixedly installed on the clamping rod 4, and the gripping plate 9 is equipped with an anti-slip rubber pad. When gripping goods, the drive assembly 8 is activated to push the bottom power rod 1 downwards. When the power rod 1 moves downwards, it pushes the short rod 6 downwards, thereby pushing the clamping rod 4 by pushing the transmission rod 5. The plate 3 rotates and unfolds, and the rotation and unfolding of the clamping rod 4 causes the gripping plate 9 to be in an unfolded gripping state. At this time, the gripping plate 9 is positioned around the goods to perform gripping actions. Then, the reverse drive component 8 causes the power rod 1 to move upward and reset. The power rod 1 moves upward and drives the short rod 6 to move upward. The short rod 6 pulls the transmission rod 5 to cause the clamping rod 4 to retract and rotate, so that the clamping rod 4 is in a retracted state, that is, the gripping plate 9 moves closer to the center position to grip the goods located in the center position. The anti-slip rubber pad on the gripping plate 9 can enhance the friction of the gripping plate 9, making it difficult for the goods to fall off.

[0025] like Figures 1 to 4 As shown, specifically, a movable rod 10 is fixedly connected to the connecting cover 7, and a protruding edge 11 is fixedly connected to the movable rod 10. A transmission tube 12 is provided on the movable rod 10, and a limiting groove 13 is formed on the inner wall of the transmission tube 12. The protruding edge 11 is slidably connected in the limiting groove 13. A threaded rod 14 is rotatably connected to the transmission tube 12, and the threaded rod 14 is threadedly connected to the movable rod 10. A motor 15 is fixedly installed on the transmission tube 12, and the output shaft of the motor 15 is fixedly connected to the threaded rod 14. When the robotic arm grasps goods, it needs to move up and down. At this time… The starter motor 15 drives the threaded rod 14 to rotate. With the cooperation of the convex edge 11 and the limiting groove 13, the movable rod 10 moves downward in the transmission tube 12, thereby driving the connecting cover 7 at the bottom to move downward, and then driving the components at the bottom to move downward to grab the goods. The reverse drive motor 15 can make the threaded rod 14 rotate in the opposite direction, thereby making the movable rod 10 move upward, thereby driving the connecting cover 7 to move upward, and then driving the goods at the bottom to move upward. The entire process can control the stroke of the up and down movement, and different movements can be used to cooperate in grabbing the goods.

[0026] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0027] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An adjustable stroke mechanical transmission linkage device, comprising a power rod (1), characterized in that, The power rod (1) is slidably connected to a mounting plate (2), and a number of connecting plates (3) are fixedly installed on the mounting plate (2). A linkage assembly is provided between the power rod (1) and the connecting plate (3). The linkage assembly is used for gripping goods in the robot's mechanical arm. The linkage assembly includes a clamping rod (4) rotatably connected to the connecting plate (3). A transmission rod (5) is provided on the clamping rod (4), and a short rod (6) is provided on the transmission rod (5).

2. The adjustable stroke mechanical transmission linkage device according to claim 1, characterized in that, A connecting cover (7) is fixedly connected to the mounting plate (2), and a drive assembly (8) is fixedly connected to the power rod (1), and the drive assembly (8) is fixedly installed in the connecting cover (7).

3. The adjustable stroke mechanical transmission linkage device according to claim 1, characterized in that, The short rod (6) is fixedly connected to the power rod (1), and the transmission rod (5) is movably connected between the short rod (6) and the clamping rod (4).

4. The adjustable stroke mechanical transmission linkage device according to claim 1, characterized in that, A gripping plate (9) is fixedly installed on the clamping rod (4), and the gripping plate (9) is provided with an anti-slip rubber pad.

5. The adjustable stroke mechanical transmission linkage device according to claim 2, characterized in that, A movable rod (10) is fixedly connected to the connecting cover (7), and a protruding edge (11) is fixedly connected to the movable rod (10).

6. The adjustable stroke mechanical transmission linkage device according to claim 5, characterized in that, The movable rod (10) is provided with a transmission tube (12), and a limiting groove (13) is opened on the inner wall of the transmission tube (12), and the protruding edge (11) is slidably connected in the limiting groove (13).

7. The adjustable stroke mechanical transmission linkage device according to claim 6, characterized in that, A threaded rod (14) is rotatably connected in the transmission tube (12), and the threaded rod (14) is threadedly connected to the movable rod (10). A motor (15) is fixedly installed on the transmission tube (12), and the output shaft of the motor (15) is fixedly connected to the threaded rod (14).

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