Mechanical arm with idle loss reducing function

Abstract

The utility model relates to a mechanical arm with a function of reducing idle loss, which belongs to the field of mechanical arms and comprises a base, a hinge arm is fixed on the upper surface of the base, a working arm is rotatably connected to the top end of the hinge arm, and an adjusting mechanism is arranged at the left end of the working arm. According to the mechanical arm with the idle loss reducing function, the mechanical arm is improved by arranging the suction cup, meanwhile, in order to avoid energy loss caused in the idle state, reset power-off treatment is conducted when the mechanical arm is not used, an air valve is closed, energy consumption is reduced, the suction cup is aligned with the adsorption face of an object, and the mechanical arm is more convenient to use. Air between the suction cup and the suction face of an object is vacuumized through an air valve, the object is sucked and fixed, a motor is started, the four movable sleeves can move relatively, adjustment is conducted according to the size of the object, the objects of different sizes can be sucked and fixed conveniently, and the beneficial effect that the object grabbing range is adjusted is achieved; the problem that plate-shaped objects are inconvenient to grab is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of robotic arms, and specifically relates to a robotic arm with a function of reducing idle loss. Background Technique

[0002] A robotic arm refers to a complex system with high precision, multiple inputs and outputs, high nonlinearity, and strong coupling. Due to its unique operation flexibility, it has been widely used in industrial assembly, safety explosion protection and other fields.

[0003] For example, Chinese Patent CN 211615610 U discloses a grasping robotic arm, belonging to the technical field of robotic arms of robots. The utility model includes a mechanical claw I, a mechanical claw II, a mechanical claw III, an electromagnet, an electromagnet fixing ring, a robotic arm coupling, a robotic arm I, a robotic arm II, a robotic arm III, a robotic arm fixing pin, a robotic arm IV, a robotic arm V, a body coupling, a mechanical claw fixing pin, a lead screw, a lead screw support, a lead screw limit plate, a moving block, a robotic arm connecting plate, and a robotic arm support plate.

[0004] The above-mentioned grasping robotic arm still has certain deficiencies. Its front end is a three-claw mechanical claw, which can grasp more stably; a multi-degree-of-freedom robotic arm can expand the working space; the structure is simple and convenient for popularization and application, but it is more inconvenient to grasp plate-shaped objects and it is difficult to adjust the range of grasped objects. Therefore, this application proposes a robotic arm with a function of reducing idle loss to solve the above problems. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a robotic arm with a function of reducing idle loss, which has the advantage of adjusting the range of grasped objects and solves the problem of inconvenience when grasping plate-shaped objects.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A robotic arm with a function of reducing idle loss, including a base, the upper surface of the base is fixed with a hinged arm, the top of the hinged arm is rotatably connected with a working arm, and an adjusting mechanism is arranged at the left end of the working arm;

[0007] The adjusting mechanism includes an installation box fixed to the left end of the working arm by bolts. The front and rear side walls and the upper and lower side walls of the inner cavity of the installation box are rotatably connected with lead screws through bearings. The outer sides of the four lead screws are all threadedly connected with movable sleeves. The opposite sides of the four lead screws are all fixed with gears through rod bodies. The upper surface of the installation box is fixed with a motor. The left sides of the four movable sleeves are all fixed with sleeves. The left sides of the four sleeves are all fixedly communicated with suction cups. The outer sides of the four movable sleeves are fixedly communicated with connecting pipes, and air valves are fixed on the outer sides of the four connecting pipes.

[0008] Furthermore, the adjustment mechanism further includes four positioning grooves formed on the left side of the mounting box, and the four sleeves are respectively slidably connected to the interiors of the four positioning grooves.

[0009] Furthermore, the four gears mesh with each other, and the upper screw rod is fixed to the outer side of the output shaft of the motor.

[0010] Furthermore, one sides of the four connecting pipes away from the four sleeves respectively penetrate through the right side wall of the inner cavity of the mounting box and extend to the right side of the mounting box, and the four connecting pipes are all flexible hoses.

[0011] Furthermore, a protection box is fixed to the upper surface of the mounting box, and the motor is located inside the protection box.

[0012] Furthermore, the screw rods on the upper and lower sides and the front and rear sides are respectively arranged with opposite threads, and the distances between the four movable sleeves and the four gears are the same.

[0013] Furthermore, an air pump is fixed to the back side of the working arm, and the four connecting pipes are all communicated with the air extraction end of the air pump.

[0014] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0015] For the robotic arm with the function of reducing idle loss, it is improved by setting suction cups. At the same time, in order to avoid energy loss caused during idleness, it is reset and powered off when not in use, and the air valve is closed at the same time to save energy consumption. Align the suction cups with the adsorption surface of the item, use the air valve to evacuate the air between the suction cups and the adsorption surface of the item, so that the item is adsorbed and fixed. Start the motor, and the four movable sleeves can move relatively and be adjusted according to the size of the item, which is convenient for adsorbing and fixing items of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural view of the present utility model;

[0017] Figure 2 is a schematic view of the adjustment mechanism of the present utility model;

[0018] Figure 3 is a right view of the adjustment mechanism of the present utility model;

[0019] Figure 4 is a left view of the adjustment mechanism of the present utility model.

[0020] In the figure: 1 base, 2 adjustment mechanism, 201 mounting box, 202 screw rod, 203 movable sleeve, 204 gear, 205 motor, 206 sleeve, 207 suction cup, 208 connecting pipe, 209 air valve, 210 positioning groove, 3 articulated arm, 4 working arm. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figure 1 , a robotic arm with a function of reducing idle loss in this embodiment includes a base 1. A hinged arm 3 is fixed on the upper surface of the base 1. The top end of the hinged arm 3 is rotatably connected to a working arm 4. An adjusting mechanism 2 is provided at the left end of the working arm 4. To avoid the inconvenience of clamping plate-shaped articles during the operation of the robotic arm, it is improved by setting a suction cup 207.

[0023] Please refer to Figures 2 to 4 , to facilitate the adsorption and fixation of articles of different sizes, the adjusting mechanism 2 in this embodiment includes an installation box 201 fixed to the left end of the working arm 4 by bolts. The front and rear side walls and the upper and lower side walls of the inner cavity of the installation box 201 are rotatably connected to a lead screw 202 through bearings. A movable sleeve 203 is threadedly connected to the outside of the four lead screws 202. A gear 204 is fixed to the opposite side of the four lead screws 202 through a rod body. A motor 205 is fixed on the upper surface of the installation box 201. A sleeve 206 is fixed to the left side of the four movable sleeves 203. A suction cup 207 is fixedly communicated with the left side of the four sleeves 206. A connecting pipe 208 is fixedly communicated with the outside of the four movable sleeves 203. An air valve 209 is fixed to the outside of the four connecting pipes 208. To avoid energy loss caused during idle time, a reset power-off process is performed when not in use, and at the same time, the air valve 209 is closed to save energy consumption.

[0024] In this embodiment, the adjusting mechanism 2 further includes four positioning grooves 210 formed on the left side of the mounting box 201. The four sleeves 206 are respectively slidably connected to the interiors of the four positioning grooves 210. The four gears 204 are meshed with each other. The upper lead screw 202 is fixed to the outer side of the output shaft of the motor 205. When it is necessary to clamp and fix an article, only need to align the suction cup 207 with the adsorption surface of the article, and use the air valve 209 to evacuate the air between the suction cup 207 and the adsorption surface of the article, so that the article is adsorbed and fixed. One side of each of the four connecting pipes 208 away from the four sleeves 206 respectively penetrates through the right side wall of the inner cavity of the mounting box 201 and extends to the right side of the mounting box 201. The four connecting pipes 208 are all flexible hoses. A protection box is fixed to the upper surface of the mounting box 201. The motor 205 is located in the protection box. The lead screws 202 on the upper and lower sides and the front and rear sides are respectively arranged with opposite threads. The distances between the four movable sleeves 203 and the four gears 204 are the same. An air pump is fixed to the back side of the working arm 4. The four connecting pipes 208 are all communicated with the air suction end of the air pump. When adsorbing and fixing articles of different sizes, start the motor 205 to drive the four lead screws 202 to rotate respectively by the four gears 204. At this time, since the four sleeves 206 are respectively slidably connected to the interiors of the four positioning grooves 210, the rotation of the movable sleeves 203 is restricted, so that the four movable sleeves 203 move relatively and are adjusted according to the size of the article, facilitating the adsorption and fixing of articles of different sizes.

[0025] It should be noted that the suction cup 207 is improved by setting. At the same time, in order to avoid energy loss caused during idle time, the power is cut off and reset when not in use. At the same time, the air valve 209 is closed to save energy consumption. Align the suction cup 207 with the adsorption surface of the article, and use the air valve 209 to evacuate the air between the suction cup 207 and the adsorption surface of the article, so that the article is adsorbed and fixed. Start the motor 205, and the four movable sleeves 203 can move relatively and are adjusted according to the size of the article, facilitating the adsorption and fixing of articles of different sizes.

[0026] It can be understood that the electrical components appearing in the text are all electrically connected to the main controller and the power supply, and the electrical components appearing in the text are all conventional known devices. This application will not elaborate too much. The main controller can be a conventional known device such as a computer for control. The control circuit of the main controller can be realized by simple programming by those skilled in the art. The provision of the power supply also belongs to the common knowledge in the art. And this utility model is mainly used to protect mechanical devices, so this utility model will not explain the control method and circuit connection in detail. At the same time, for the parts not detailed in this utility model, they are all well-known technologies of those skilled in the art.

[0027] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. 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, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] The working principle of the above embodiment is as follows:

[0029] (1) When the robotic arm with the function of reducing idle loss needs to be used, in order to avoid the inconvenience of clamping plate-shaped articles during the operation of the robotic arm, it is improved by setting the suction cup 207. At the same time, in order to avoid energy loss caused during idle time, the power is cut off and reset when not in use, and the air valve 209 is closed at the same time to save energy consumption. When it is necessary to clamp and fix an article, only need to align the suction cup 207 with the adsorption surface of the article, and use the air valve 209 to evacuate the air between the suction cup 207 and the adsorption surface of the article, so that the article is adsorbed and fixed.

[0030] (2) When adsorbing and fixing articles of different sizes, start the motor 205 to make the four lead screws 202 rotate respectively driven by the four gears 204. At this time, since the four sleeves 206 are respectively slidably connected inside the four positioning grooves 210, the rotation of the movable sleeve 203 is restricted, so that the four movable sleeves 203 move relative to each other and are adjusted according to the size of the article, which is convenient for adsorbing and fixing articles of different sizes.

[0031] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device including the said element.

[0032] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model.

Claims

1. A mechanical arm with a function of reducing idle loss, comprising a base (1), characterized in that: An articulated arm (3) is fixed to the upper surface of the base (1); the top end of the articulated arm (3) is rotatably connected to a working arm (4); and an adjustment mechanism (2) is provided at the left end of the working arm (4); The adjustment mechanism (2) comprises an installation box (201) fixed to the left end of the working arm (4) by bolts, the front and rear side walls and the upper and lower side walls of the inner cavity of the installation box (201) are rotatably connected to screw rods (202) through bearings, the outer sides of the four screw rods (202) are threadedly connected to movable sleeves (203), the opposite sides of the four screw rods (202) are fixed with gears (204) through rod bodies, the upper surface of the installation box (201) is fixed with a motor (205), the left sides of the four movable sleeves (203) are fixed with sleeves (206), the left sides of the four sleeves (206) are fixedly connected to suction cups (207), the outer sides of the four movable sleeves (203) are fixedly connected to connecting pipes (208), and the outer sides of the four connecting pipes (208) are fixed with air valves (209).

2. A robotic arm with a function of reducing idle loss according to claim 1, characterized in that: The adjustment mechanism (2) further comprises four positioning grooves (210) opened on the left side of the installation box (201), and the four sleeves (206) are respectively slidably connected inside the four positioning grooves (210).

3. The mechanical arm with the function of reducing idle loss according to claim 1, characterized in that: The four gears (204) are meshed with each other, and the upper screw rod (202) is fixed on the outside of the output shaft of the motor (205).

4. The mechanical arm with the function of reducing idle loss according to claim 1, characterized in that: The four connecting pipes (208) respectively extend through the right side wall of the inner cavity of the installation box (201) on the sides away from the four sleeves (206) and extend to the right side of the installation box (201). The four connecting pipes (208) are all hoses.

5. The mechanical arm with the function of reducing idle loss according to claim 1, characterized in that: A protection box is fixed on the upper surface of the installation box (201), and the motor (205) is located in the protection box.

6. The mechanical arm with the function of reducing idle loss according to claim 1, characterized in that: The screw rods (202) on the upper and lower sides and the front and rear sides are respectively arranged with opposite threads, and the four movable sleeves (203) are respectively spaced the same as the four gears (204).

7. The mechanical arm with the function of reducing idle loss according to claim 1, characterized in that: An air pump is fixed on the back side of the working arm (4), and the four connecting pipes (208) are all connected to the air extraction end of the air pump.

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