Novel mechanical arm

Abstract

The novel mechanical arm comprises a base, the upper end of the base is rotationally connected with a first arm body, the upper end of the first arm body is rotationally connected with a second arm body, the end, away from the first arm body, of the second arm body is rotationally connected with a third arm body, and the end, away from the second arm body, of the third arm body is fixedly connected with a mechanical claw. The base is rotationally connected with the first arm body through a connecting shaft, the first arm body is rotationally connected with the second arm body through a connecting shaft, driving motors are arranged at the connecting position of the base and the first arm body, the connecting position of the first arm body and the second arm body, and the connecting position of the second arm body and the third arm body, and the output ends of the driving motors are connected with the corresponding connecting shafts. According to the novel mechanical arm provided by the utility model, through the matching design of multiple structures, the whole device is relatively simple and light, the occupied space is relatively small, the high-definition camera and the protective pad are arranged on the mechanical claw, the precision of the mechanical arm can be effectively improved, excessive pressure can be prevented from being applied to an object in the operation process, and the mechanical arm is convenient to use. The device is suitable for treating fragile and soft objects and has good adaptability.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical arm technical field especially relates to a new type mechanical arm. BACKGROUND

[0002] Robots are automated devices that can perceive the environment, process information, and perform actions. They can assist or replace humans in completing various tasks. Robots have a wide range of applications, including industry, medicine, education, and entertainment. They can perform tasks such as welding, painting, assembly, transportation, detection, reconnaissance, surveillance, attack, and mine clearance. Therefore, stability, flexibility, and load are factors that need to be considered when designing robots.

[0003] For example, Chinese utility model patent (CN220162499U) discloses a mechanical arm, which states: "The rotation of the rotary joint is achieved by medium pushing. Its structure is simple, and it can be separated for maintenance. Compared with the prior art, its structure is simpler, easier to maintain, and occupies less space and weighs less." It also states: "In the prior art, the rotary pair of the mechanical arm is achieved by mechanical structure, which is not convenient for maintenance. At the same time, the mechanical arm has a large volume, occupies a relatively large space, and has a large weight, resulting in a large inertial force and a large impact when an accident occurs."

[0004] In summary, the prior art has the following technical problems: in the prior art, the rotation of the mechanical arm is mostly achieved by mechanical structure, which is not convenient for maintenance. At the same time, the mechanical arm has a large volume, occupies a relatively large space, and has a large weight, resulting in a large inertial force and a large impact when an accident occurs. Therefore, the present application proposes a new type of mechanical arm to solve the technical problems mentioned in the above patent and provides a new technical solution. UTILITY MODEL CONTENT

[0005] Therefore, it is necessary to provide a new type of mechanical arm to solve the above technical problems. Through the cooperation of multiple structures, the device is simple and light, occupies less space, and sets up a high-definition camera and a protective pad on the mechanical claw, which can effectively improve the accuracy of the mechanical arm and avoid applying excessive pressure to the object during operation. It is suitable for handling fragile and soft objects and has good adaptability.

[0006] To solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A new type of mechanical arm is applied to a mechanical arm.

[0008] The new type of mechanical arm specifically includes:

[0009] The base is rotatably connected with an arm body one at an upper end, the arm body one is rotatably connected with an arm body two at an upper end, the arm body two is rotatably connected with an arm body three at an end away from the arm body one, and the arm body three is fixedly connected with a mechanical claw at an end away from the arm body two.

[0010] The connecting places of the base and the arm body one, the arm body one and the arm body two are rotatably connected through connecting shafts, and the connecting places of the base and the arm body one, the arm body one and the arm body two, and the arm body two and the arm body three are provided with driving motors, and the output ends of the driving motors are connected with the corresponding connecting shafts.

[0011] The frame part of the mechanical claw is detachably fixedly connected with the arm body three through screws, and the inside of the claw clamping part of the mechanical claw is fixedly connected with a protective pad.

[0012] As a preferred embodiment of the novel mechanical arm, the material of the protective pad is rubber, and flexible pressure sensors are embedded in the middle part and the position close to the end of the protective pad.

[0013] As a preferred embodiment of the novel mechanical arm, the outside of the mechanical claw is fixedly connected with a high-definition camera through a support.

[0014] As a preferred embodiment of the novel mechanical arm, the connecting shaft comprises an adjusting rod, the threads on the outside of the two ends of the adjusting rod are opposite in rotation direction, the two ends of the adjusting rod are both threadedly connected with connecting seats, the ends of the two connecting seats away from each other are both fixedly connected with connecting plug blocks, and the connecting seat is connected with the arm body one or the arm body two through the connecting plug blocks.

[0015] As a preferred embodiment of the novel mechanical arm, the two ends of the adjusting rod and the positions between the two connecting seats are both rotatably connected with limiting nuts.

[0016] As a preferred embodiment of the novel mechanical arm, the middle part of the adjusting rod is fixedly connected with a rotating block.

[0017] Compared with the prior art, the novel mechanical arm has the following beneficial effects:

[0018] The novel mechanical arm has the following beneficial effects:

[0019] The novel mechanical arm provided by the utility model is designed into multiple independent modules through the detachable design of the connecting shaft, different components are conveniently replaced or upgraded, the novel mechanical arm can better adapt to different task requirements, and the life cycle of the mechanical arm is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to make the scheme in the utility model clearer, the following will briefly introduce the drawings needed in the embodiment description, and obviously, the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor on the premise of the drawings.

[0021] Figure 1 The whole structure schematic diagram of the novel mechanical arm provided by the utility model is shown in the figure.

[0022] Figure 2 The structure schematic diagram of the novel mechanical arm high-definition camera, protective pad and flexible pressure sensor provided by the utility model is shown in the figure.

[0023] Figure 3 The structure schematic diagram of the connecting shaft of the novel mechanical arm provided by the utility model is shown in the figure.

[0024] Figure 4 The enlarged structure diagram of the connecting shaft of the novel mechanical arm provided by the utility model is shown in the figure.

[0025] The figure mark is explained as follows:

[0026] 1, base; 2, arm body one; 3, arm body two; 4, arm body three; 5, mechanical claw; 6, high-definition camera; 7, protective pad; 8, flexible pressure sensor; 9, adjusting rod; 10, connecting seat; 11, limiting nut; 12, connecting plug block. DETAILED DESCRIPTION

[0027] In order to make the scheme in the utility model clearer, the following will briefly introduce the drawings needed in the embodiment description, and obviously, the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor on the premise of the drawings.

[0028] As the background art, in the prior art, the rotary pair of the mechanical arm is realized through a mechanical structure, which is inconvenient for maintenance, the volume of the mechanical arm is relatively large, the occupied space is also relatively large, and the weight of the mechanical arm is also large, which leads to large inertial force and large impact when an accident occurs.

[0029] In order to solve the technical problem, the utility model provides a novel mechanical arm, it applies to mechanical arm.

[0030] Specifically, please refer to Figure 1 - Figure 2 The novel mechanical arm specifically includes:

[0031] The upper end of base 1 is rotatably connected with arm body one 2, the upper end of arm body one 2 is rotatably connected with arm body two 3, the end, away from arm body one 2, of arm body two 3 is rotatably connected with arm body three 4, and the end, away from arm body two 3, of arm body three 4 is fixedly connected with mechanical claw 5;

[0032] The connecting places of base 1 with arm body one 2 and arm body one 2 with arm body two 3 are rotatably connected through connecting shafts, and the connecting places of base 1 with arm body one 2, arm body one 2 with arm body two 3 and arm body two 3 with arm body three 4 are all provided with driving motors, and the output ends of the driving motors are connected with the corresponding connecting shafts;

[0033] The frame part of mechanical claw 5 is detachably fixedly connected with arm body three 4 through screw, and the inside of the claw clamping part of mechanical claw 5 is fixedly connected with protective pad 7.

[0034] The novel mechanical arm provided by the utility model is simple and light in the whole through the cooperation of multiple structures, occupies small space, and the setting of high-definition camera 6 and protective pad 7 on mechanical claw 5 can effectively improve the precision of the mechanical arm, and can avoid exerting too much pressure on objects during operation, is suitable for processing fragile and soft objects, and has good adaptability.

[0035] In order to make the personnel in the technical field better understand the utility model scheme, the technical scheme in the utility model embodiment will be described clearly and completely in combination with the drawings.

[0036] Embodiment 1:

[0037] Please refer to Figure 1 - Figure 2 The novel mechanical arm includes:

[0038] The base 1 is rotatably connected with the arm body one 2 at the upper end of the base 1, the arm body two 3 is rotatably connected with the arm body one 2 at the upper end of the arm body one 2, the arm body three 4 is rotatably connected with the arm body two 3 at the end away from the arm body one 2, and the mechanical claw 5 is fixedly connected with the arm body three 4 at the end away from the arm body two 3. Wherein, the base 1 and the arm body one 2, the arm body one 2 and the arm body two 3 are rotatably connected through the connecting shaft, and the base 1 and the arm body one 2, the arm body one 2 and the arm body two 3, the arm body two 3 and the arm body three 4 are provided with driving motors at the connecting positions, and the output ends of the driving motors are connected with the corresponding connecting shafts; in this embodiment, the base 1, the arm body one 2, the arm body two 3 and the arm body three 4 are all made of high-strength lightweight materials (such as carbon fiber and titanium alloy), so as to reduce the weight of the mechanical arm, improve the energy efficiency, and meanwhile maintain the strength and durability.

[0039] It can be known that the mechanical arm can be freely rotated at multiple angles through the rotatable connection of the arm body one 2 and the base 1, the rotatable connection of the arm body two 3 and the arm body one 2, and the rotatable connection of the arm body three 4 and the arm body two 3, and the driving is realized through the driving motors at the connecting positions; the mechanical claw 5 provided at the end of the arm body three 4 can realize the clamping of the objects and the carrying and moving of the objects.

[0040] Further, the frame part of the mechanical claw 5 is detachably fixedly connected with the arm body three 4 through the screw, and the inner side of the claw clamping part of the mechanical claw 5 is fixedly connected with the protective pad 7. Wherein, the material of the protective pad 7 is rubber, and the flexible pressure sensor 8 is embeddedly arranged at the middle part and the position close to the end of the protective pad 7. Wherein, the outer side of the mechanical claw 5 is fixedly connected with the high-definition camera 6 through the support.

[0041] It can be known that the high-definition camera 6 arranged on the side of the mechanical claw 5 can obtain the image information of the claw clamping part of the mechanical claw 5, so as to effectively help the mechanical arm to accurately position the target; and the protective pad 7 can reduce the damage of the claw clamping part of the mechanical claw 5 to the objects, and the flexible pressure sensor 8 arranged in the protective pad 7 can detect the clamping force of the claw clamping part of the mechanical claw 5, so as to avoid applying too large pressure to the objects in the operation, which is especially suitable for processing fragile, soft or irregular objects.

[0042] Embodiment 2:

[0043] The new mechanical arm provided in embodiment 1 is further optimized, specifically, as shown in Figure 3 - Figure 4 The connecting shaft includes the adjusting rod 9, the thread directions of the outer sides of the two ends of the adjusting rod 9 are opposite, the two ends of the adjusting rod 9 are threadedly connected with the connecting seats 10, the ends away from each other of the two connecting seats 10 are fixedly connected with the connecting plug blocks 12, and the connecting seat 10 is plug-connected with the arm body one 2 or the arm body two 3 through the connecting plug blocks 12.

[0044] In order to realize the limiting fixing of the connecting seat 10, the limiting nuts 11 are rotationally connected to the two ends of the adjusting rod 9 and located between the two connecting seats 10, and the friction between the limiting nuts 11 and the connecting seats 10 is increased by tightening the limiting nuts 11, so as to reduce the phenomenon of accidental rotation of the connecting seat 10.

[0045] In order to facilitate the rotation of the adjusting rod 9 and make the installation or disassembly of the connecting shaft more convenient, the rotating block is fixedly connected to the middle part of the adjusting rod 9.

[0046] Through the above structural design, it can be known that, in use, the adjusting rod 9 is driven to rotate by the driving motor, so that the arm body one 2 or the arm body two 3 can be synchronously driven to move through the connecting seat 10 at the end of the adjusting rod 9 cooperating with the connecting plug 12, so as to realize the movement of the mechanical arm; when the mechanical arm needs to be maintained, the limiting nut 11 can be moved to the middle part of the adjusting rod 9 by rotating, the rotation limiting of the connecting seat 10 is released, and then the adjusting rod 9 is rotated to make the two connecting seats 10 close to each other, until the connecting seat 10 is separated from the output end of the arm body one 2 or the arm body two 3 and the driving motor, so that the connecting shaft can be taken out, and after the connecting shaft is disassembled, the connecting between the base 1 and the arm body one 2 and the arm body two 3 is lost, so that the base 1, the arm body one 2 and the arm body two 3 can be disassembled and replaced;

[0047] Through the dismountable design of the base 1, the arm body one 2 and the arm body two 3, the mechanical arm is designed as multiple independent modules, different components can be conveniently replaced or upgraded, the mechanical arm can better adapt to different task requirements, and the life cycle of the mechanical arm is prolonged.

Claims

1. A new type of robotic arm, characterized in that: include: A base (1), the upper end of the base (1) is rotatably connected to an arm body 1 (2), the upper end of the arm body 1 (2) is rotatably connected to an arm body 2 (3), an end of the arm body 2 (3) away from the arm body 1 (2) is rotatably connected to an arm body 3 (4), and an end of the arm body 3 (4) away from the arm body 2 (3) is fixedly connected to a mechanical claw (5); The connection points between the base (1) and the arm body 1 (2), and between the arm body 1 (2) and the arm body 2 (3) are all rotatably connected via a connecting shaft, and the connection points between the base (1) and the arm body 1 (2), the arm body 1 (2) and the arm body 2 (3), and the arm body 2 (3) and the arm body 3 (4) are all provided with a driving motor, and the output end of the driving motor is connected to the corresponding connecting shaft; The frame portion of the mechanical claw (5) is detachably fixedly connected to the arm body three (4) via screws, and a protective pad (7) is fixedly connected to the inner side of the claw clamping portion of the mechanical claw (5).

2. The novel robotic arm according to claim 1, characterized in that: The material of the protective pad (7) is rubber, and flexible pressure sensors (8) are embedded in the middle and near the end of the protective pad (7).

3. The novel robotic arm according to claim 1, characterized in that: The outer side of the mechanical claw (5) is fixedly connected to a high-definition camera (6) via a bracket.

4. The novel robotic arm according to claim 1, characterized in that: The connecting shaft comprises an adjusting rod (9), the threads on the outer sides of the two ends of the adjusting rod (9) are screwed in opposite directions, both ends of the adjusting rod (9) are threadedly connected to a connecting seat (10), and the ends of the two connecting seats (10) that are away from each other are fixedly connected to a connecting plug (12), and the connecting seat (10) is plug-connected to the arm body 1 (2) or the arm body 2 (3) through the connecting plug (12).

5. The novel robotic arm according to claim 4, characterized in that: Both ends of the regulating rod (9) and located between the two connecting seats (10) are rotatably connected to limiting nuts (11).

6. The novel robotic arm according to claim 4, characterized in that: The middle part of the adjusting rod (9) is fixedly connected with a rotating block.

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