Foldable mechanical arm suitable for operation in narrow space

Abstract

The foldable mechanical arm suitable for operation in the narrow space comprises a fixing frame, a connecting box is arranged on the surface of one side of the fixing frame, a motor is fixedly installed on the surface of the top of the connecting box, and the output end of the motor penetrates through the surface of the top of the connecting box and is fixedly connected with a screw rod. According to the device, the motor on the surface of the top of the connecting box is turned on, the motor drives the screw rod to rotate, and the movable block on the screw rod can be limited through the use of the limiting block and the limiting groove, so that the movable block can move on the screw rod, and the movable block drives the mounting plate to move through the fixed block while moving; and a base on a fixed seat on the top surface of the mounting plate is moved, so that the height position of the mechanical arm can be adjusted, the use requirements of different heights can be met, the mechanical arm can work in a narrow space, the defects during use are reduced, and the adaptability of the equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of robotic arm technology, and in particular to a foldable robotic arm suitable for operation in confined spaces. Background Technology

[0002] As the name suggests, a robotic arm is an automatic operating device that can mimic certain movements and functions of a human hand and arm to grasp, move objects, or operate tools according to a fixed program. The robotic arm was the earliest industrial robot and the earliest modern robot. It can replace heavy human labor to realize the mechanization and automation of production. It can operate in harmful environments to protect personal safety. Therefore, it is widely used in machinery manufacturing, metallurgy, electronics, light industry and other sectors.

[0003] The existing Chinese patent with publication number CN218170411U discloses a robotic arm. However, the existing technical solution described above has the following drawbacks: While the rigid-flexible robotic arm can achieve position and posture adjustment under electric and / or fluid actuation, and because it possesses both rigid and flexible joints, thus exhibiting both structural rigidity and flexible movement, allowing the end effector connected to its end to reach any position in any posture within its flexible workspace, and because the flexible structure of the flexible joints prevents collisions and injuries to people or objects during use, the robotic arm in the above technical solution is fixed at a specific height and cannot be adjusted in overall height. This fails to meet the operational needs at different heights, significantly reducing its applicability. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a foldable robotic arm suitable for operation in confined spaces. It features the advantage of being able to adjust the overall height and position of the robotic arm, meeting the usage requirements of different heights, and having strong applicability, thereby solving the problems mentioned in the background technology.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a foldable robotic arm suitable for operation in confined spaces, comprising a fixed frame, a connecting box on one side surface of the fixed frame, a motor fixedly mounted on the top surface of the connecting box, a screw fixedly connected to the output end of the motor through the top surface of the connecting box, a moving block threadedly connected to the screw, a limiting block on one side surface of the moving block, one end of the limiting block extending into the interior of a limiting groove opened on one side of the inner wall of the connecting box, a fixing block on the other side surface of the moving block through a through groove on the connecting box and the fixed frame, a mounting plate fixedly connected to one end of the fixing block on one side of the fixed frame, a fixing seat on one side of the top surface of the mounting plate, a base fixedly mounted on the top surface of the fixing seat, a first connecting arm mounted on the base, a second connecting arm mounted on the first connecting arm, a working arm mounted on the second connecting arm, a through opening on the top surface of the mounting plate on one side of the fixing seat, a gear installed in the through opening, a rack on one side of the top surface of the fixed frame through the through opening, the rack meshing with the gear.

[0008] Preferably, the mounting plate has a groove on one side of the inner wall of the opening, and an electric push rod is fixedly installed on one side of the inner wall of the groove. The output end of the electric push rod is fixedly connected to a push block, and one side surface of the push block is provided with positioning teeth, which match the gear.

[0009] Preferably, a connecting block is provided on one side of the top and bottom surfaces of the push block, and one end of the connecting block extends into the interior of the connecting groove opened on the lower surface of the top end and the upper surface of the bottom end of the groove. The connecting block and the connecting groove are rectangular structures, and the connecting block and the connecting groove are slidably connected.

[0010] Preferably, the pusher block matches the groove.

[0011] Preferably, the fixing block and the through groove are rectangular structures, and the fixing block and the through groove are slidably connected.

[0012] Preferably, the front surface of the mounting plate is provided with a movable plate, which is fixedly connected to the mounting plate by screws.

[0013] Preferably, the limiting block and the limiting groove are rectangular structures, and the limiting block and the limiting groove are slidably connected.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a foldable robotic arm suitable for operation in confined spaces, which has the following advantages:

[0016] (1) In this utility model, the fixed frame is installed in a designated position. After installation, the workpiece can be processed by the use of the robotic arm. The motor on the top surface of the connecting box is turned on, and the motor drives the screw to rotate. The moving block on the screw is limited by the use of the limiting block and the limiting groove, so that the moving block can move on the screw. While the moving block is moving, the mounting plate is moved by the fixed block, so that the base on the fixed seat on the top surface of the mounting plate moves. Thus, the height position of the robotic arm can be adjusted to meet the usage requirements of different heights, so that it can work in a narrow space, reduce the drawbacks during use, and improve the applicability of the equipment.

[0017] (2) In this utility model, the mounting plate can be limited by the use of rack and gear, so as to maintain the stability of the mounting plate during the movement. When the height position of the robotic arm is adjusted, the electric push rod in the groove of the mounting plate is opened. The electric push rod drives the push block to move, so that the positioning teeth on one side of the push block move. When one end of the positioning teeth meshes with the gear, the gear can be locked, so as to position the mounting plate and maintain the stability of the robotic arm on the mounting plate during operation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the foldable robotic arm suitable for operation in confined spaces proposed in this utility model;

[0020] Figure 2 This is an enlarged view (A) of the foldable robotic arm suitable for operation in confined spaces proposed in this utility model;

[0021] Figure 3 This is a front view of the foldable robotic arm suitable for operation in confined spaces proposed in this utility model;

[0022] Figure 4 This is a schematic diagram of the pusher structure of the foldable robotic arm suitable for operation in confined spaces, as proposed in this utility model.

[0023] Legend:

[0024] 1. Fixed frame; 2. Motor; 3. Connecting box; 4. Screw; 5. Limiting groove; 6. Moving block; 7. Limiting block; 8. Fixed block; 9. Through groove; 10. Rack; 11. First connecting arm; 12. Second connecting arm; 13. Working arm; 14. Base; 15. Fixed seat; 16. Groove; 17. Electric push rod; 18. Mounting plate; 19. Gear; 20. Through port; 21. Push block; 22. Positioning tooth; 23. Connecting block; 24. Connecting groove; 25. Movable plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing 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, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0027] Please refer to Figure 1-4A foldable robotic arm suitable for operation in confined spaces includes a fixed frame 1. A connecting box 3 is provided on one side of the fixed frame 1, and a motor 2 is fixedly mounted on the top surface of the connecting box 3. A screw 4 is fixedly connected to the output end of the motor 2 through the top surface of the connecting box 3. A moving block 6 is threaded onto the screw 4, and a limiting block 7 is provided on one side of the moving block 6. One end of the limiting block 7 extends into a limiting groove 5 opened on one side of the inner wall of the connecting box 3. A fixing block 8 is provided on the other side of the moving block 6 through a through groove 9 on the connecting box 3 and the fixed frame 1. A mounting plate 18 is fixedly connected to one end of the fixing block 8 on one side of the fixed frame 1. A fixing seat 15 is provided on one side of the top surface of the mounting plate 18, and a base 14 is fixedly mounted on the top surface of the fixing seat 15. A first connecting arm 11 is mounted on the base 14, a second connecting arm 12 is mounted on the first connecting arm 11, and a working arm 13 is mounted on the second connecting arm 12. The top surface of the mounting plate 18 is located on the fixed... A through-hole 20 is provided on one side of the base 15, and a gear 19 is installed in the through-hole 20. A rack 10 is provided on one side of the top surface of the fixed frame 1 through the through-hole 20. The rack 10 meshes with the gear 19. The fixed frame 1 is installed in a designated position. After installation, the workpiece can be processed by using the robotic arm. By opening the motor 2 on the top surface of the connecting box 3, the motor 2 drives the screw 4 to rotate. Then, by using the limit block 7 and the limit groove 5, the moving block 6 on the screw 4 can be limited, so that the moving block 6 can move on the screw 4. When the moving block 6 moves, it drives the mounting plate 18 to move through the fixed block 8, so that the base 14 on the fixed seat 15 on the top surface of the mounting plate 18 moves. This allows the height position of the robotic arm to be adjusted to meet the usage requirements of different heights, so that it can work in a narrow space, reduce the disadvantages during use, and improve the adaptability of the equipment.

[0028] In one embodiment, a groove 16 is provided inside the mounting plate 18 on one side of the inner wall of the opening 20, and an electric push rod 17 is fixedly installed on one side of the inner wall of the groove 16. The output end of the electric push rod 17 is fixedly connected to a push block 21, and a positioning tooth 22 is provided on one side surface of the push block 21. The positioning tooth 22 matches the gear 19. When the height position of the robotic arm is adjusted, the electric push rod 17 in the groove 16 of the mounting plate 18 is opened. The electric push rod 17 drives the push block 21 to move, so that the positioning tooth 22 on one side surface of the push block 21 moves. When one end of the positioning tooth 22 meshes with the gear 19, the gear 19 can be locked, thereby positioning the mounting plate 18 and maintaining the stability of the robotic arm on the mounting plate 18 during operation.

[0029] In one embodiment, a connecting block 23 is provided on one side of the top and bottom surfaces of the push block 21, and one end of the connecting block 23 extends into the interior of the connecting groove 24 opened on the lower top surface and the upper bottom surface of the groove 16. The connecting block 23 and the connecting groove 24 are rectangular structures, and the connecting block 23 and the connecting groove 24 are slidably connected. The use of the connecting block 23 and the connecting groove 24 can limit the push block 21, thereby maintaining the stability of the push block 21 during movement.

[0030] In one embodiment, the pusher 21 is matched with the groove 16, which allows the pusher 21 to move into the groove 16, thereby moving the positioning tooth 22 away from the gear 19.

[0031] In one embodiment, the fixing block 8 and the through groove 9 are rectangular structures, and the fixing block 8 is slidably connected to the through groove 9, which facilitates the movement of the fixing block 8 in the through groove 9.

[0032] In one embodiment, a movable plate 25 is provided on the front surface of the mounting plate 18. The movable plate 25 is fixedly connected to the mounting plate 18 by screws. By loosening the screws and removing the movable plate 25, the components in the mounting plate 18 can be maintained and repaired.

[0033] In one embodiment, the limiting block 7 and the limiting groove 5 are rectangular structures. The limiting block 7 and the limiting groove 5 are slidably connected, allowing the limiting block 7 to move within the limiting groove 5, thereby limiting the movement of the moving block 6 on the screw 4 and maintaining the normal movement of the moving block 6.

[0034] In one embodiment, the control switch control circuit can be implemented by simple programming by those skilled in the art, and is common knowledge in the field. It is only used and not modified, so the control method and circuit connection will not be described in detail.

[0035] Working principle:

[0036] In use, the mounting bracket 1 is installed in the designated position. After installation, the workpiece can be processed by using the robotic arm. Specifically, by activating the motor 2 on the top surface of the connecting box 3, the motor 2 drives the screw 4 to rotate. The use of the limiting block 7 and the limiting groove 5 limits the movement of the moving block 6 on the screw 4, allowing the moving block 6 to move along the screw 4. Simultaneously, the moving block 6 moves the mounting plate 18 via the fixing block 8, causing the base 14 on the fixing seat 15 on the top surface of the mounting plate 18 to move. This allows for adjustment of the robotic arm's height, meeting different height requirements and enabling it to operate in confined spaces. The operation reduces the drawbacks during use and improves the adaptability of the equipment. The use of rack 10 and gear 19 can limit the position of the mounting plate 18, thereby maintaining the stability of the mounting plate 18 during movement. When the height position of the robotic arm is adjusted, the electric push rod 17 in the groove 16 of the mounting plate 18 is opened. The electric push rod 17 drives the push block 21 to move, causing the positioning tooth 22 on one side surface of the push block 21 to move. When one end of the positioning tooth 22 meshes with the gear 19, the gear 19 can be locked, thereby positioning the mounting plate 18 and maintaining the stability of the robotic arm on the mounting plate 18 during operation.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A foldable robotic arm suitable for operation in confined spaces, comprising a mounting frame (1), characterized in that, A connecting box (3) is provided on one side surface of the fixing frame (1), and a motor (2) is fixedly installed on the top surface of the connecting box (3). The output end of the motor (2) is fixedly connected to a screw (4) through the top surface of the connecting box (3). A moving block (6) is threaded onto the screw (4), and a limiting block (7) is provided on one side surface of the moving block (6). One end of the limiting block (7) extends into the interior of the limiting groove (5) opened on one side of the inner wall of the connecting box (3). A fixing block (8) is provided on the other side surface of the moving block (6) through the through groove (9) on the connecting box (3) and the fixing frame (1), and one end of the fixing block (8) is fixedly connected to a mounting plate on one side of the fixing frame (1). The mounting plate (18) has a fixed seat (15) on one side of its top surface, and a base (14) is fixedly installed on the top surface of the fixed seat (15). A first connecting arm (11) is installed on the base (14), a second connecting arm (12) is installed on the first connecting arm (11), and a working arm (13) is installed on the second connecting arm (12). A through-hole (20) is provided on one side of the top surface of the mounting plate (18) located on the fixed seat (15), and a gear (19) is installed in the through-hole (20). A rack (10) is provided on one side of the top surface of the fixing frame (1) through the through-hole (20), and the rack (10) meshes with the gear (19).

2. The foldable robotic arm suitable for operation in confined spaces according to claim 1, characterized in that, The mounting plate (18) has a groove (16) on one side of the inner wall of the opening (20), and an electric push rod (17) is fixedly installed on one side of the inner wall of the groove (16). The output end of the electric push rod (17) is fixedly connected to a push block (21), and a positioning tooth (22) is provided on one side surface of the push block (21). The positioning tooth (22) matches the gear (19).

3. The foldable robotic arm suitable for operation in confined spaces according to claim 2, characterized in that, The push block (21) has a connecting block (23) on one side of its top and bottom surfaces, and one end of the connecting block (23) extends into the interior of the connecting groove (24) opened on the lower top surface and upper bottom surface of the groove (16). The connecting block (23) and the connecting groove (24) are rectangular structures, and the connecting block (23) and the connecting groove (24) are slidably connected.

4. The foldable robotic arm suitable for operation in confined spaces according to claim 2, characterized in that, The pusher (21) matches the groove (16).

5. The foldable robotic arm suitable for operation in confined spaces according to claim 1, characterized in that, The fixing block (8) and the through groove (9) are rectangular structures, and the fixing block (8) and the through groove (9) are slidably connected.

6. The foldable robotic arm suitable for operation in confined spaces according to claim 1, characterized in that, The front surface of the mounting plate (18) is provided with a movable plate (25), which is fixedly connected to the mounting plate (18) by screws.

7. The foldable robotic arm suitable for operation in confined spaces according to claim 1, characterized in that, The limiting block (7) and the limiting groove (5) are rectangular structures, and the limiting block (7) and the limiting groove (5) are slidably connected.

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