Stable-operation mechanical arm for industrial production

Abstract

The invention relates to the technical field of mechanical arms, in particular to a stable-operation mechanical arm for industrial production, which comprises a base and a connecting box arranged at the top of the base, a clamping jaw is arranged on one side of the connecting box, the stable-operation mechanical arm further comprises a positioning rod which is slidably connected into the connecting box, and one end of the positioning rod is fixedly connected with a moving frame; a supporting guide plate is arranged at the bottom of the connecting box, an auxiliary handle used for assisting the positioning rod is arranged at the bottom of the positioning rod, a driving assembly used for tensioning the auxiliary handle is arranged in the positioning rod, the air box is arranged below the moving frame, a cavity is formed in the air box, and a plurality of extending cylinders communicating with the air box are arranged at the bottom of the air box; the bottoms of the multiple extending cylinders are slidably connected with piston rods matched with the extending cylinders, the bottoms of the multiple piston rods are fixedly connected with transverse plates used for bearing the clamping jaws, and a stabilizing assembly for changing the resistance of the piston rods is arranged in the air box.

Description

Technical Field

[0001] The present invention relates to the technical field of robotic arms, and particularly to an industrial production robotic arm with stable operation. Background Art

[0002] In the field of modern industrial manufacturing, with the rapid development of automation and intelligent technologies, robotic arms have become one of the core devices on the production line. Their precise, efficient, and stable characteristics have greatly improved production efficiency and operation safety, promoting the automation and intelligentization process of industrial production. Since then, robotic arm technology has continuously developed, gradually evolving from simple repetitive tasks to complex multi-functional operations, and even possessing artificial intelligence and visual recognition capabilities.

[0003] For example, in the patent document with the prior art publication number CN217317994U, the patent document includes a device body, which is divided into a fixed part, an adjustment part, and a grasping part. One end of the fixed part is connected and fixed to a wall or other devices. Both ends of the adjustment part are respectively hinged and fixed to the fixed part and the grasping part for angle adjustment. The adjustment part is preset with three groups of adjustment modules corresponding to the fixed part and the grasping part. The fixed part and the grasping part are preset with connection modules corresponding to the adjustment modules. The connection module is hinged to the corresponding adjustment module for angle adjustment. This device can effectively adjust the grasping angle of the robotic arm and the distance between the robotic arms, greatly improving the applicability of the device body and reducing the number of adjustments made by the staff to the device body.

[0004] In the existing technical system, by precisely and flexibly adjusting the grasping angle of the robotic arm and reasonably optimizing the distance between the robotic arms, the applicability of the device body in dealing with different working scenarios has been significantly improved. This adjustment strategy enables the robotic arm to grasp target objects more precisely in various complex environments, greatly expanding the application range of the device. However, in the actual application process, when the robotic arm needs to extend to a relatively long distance to grasp heavy objects, problems arise. From the perspective of mechanical principles, the robotic arm in this working state is like a lever system. According to the lever principle, when the resistance (i.e., the weight of the grasped object) and the resistance arm (the extension distance of the robotic arm) are large, in order to maintain the balance of the system, a huge pressure will be exerted on the support point. This excessive pressure will have a serious negative impact on the running stability of the robotic arm, possibly causing the robotic arm to shake, deviate, or even get out of control, which will not only reduce the operation efficiency but also pose a threat to the safety of surrounding equipment and personnel. Therefore, this application proposes an industrial production robotic arm with stable operation. Summary of the Invention

[0005] The purpose of the present invention is to provide an industrial production robotic arm with stable operation to solve the problems raised in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solutions: A robotic arm for industrial production with stable operation, including a base and a connection box disposed on top of it, and a gripper is disposed on one side of the connection box. It further includes:

[0007] A positioning rod, which is slidably connected to the inside of the connection box, and one end of it is fixedly connected to a moving frame. A support guide plate is disposed at the bottom of the connection box. An auxiliary handle for assisting the positioning rod is disposed at the bottom of the positioning rod. A driving assembly for tensioning the auxiliary handle is disposed inside the positioning rod;

[0008] An air box, which is disposed below the moving frame and has a cavity inside. A plurality of extension cylinders communicating with it are disposed at the bottom of the air box. The bottoms of the plurality of extension cylinders are all slidably connected with piston rods adapted to them. The bottoms of the plurality of piston rods are all fixedly connected with a cross plate for carrying the gripper. A stabilizing assembly for changing the resistance of the piston rod is disposed inside the air box.

[0009] Preferably, the driving assembly includes an air pipe fixedly connected to the inside of the positioning rod. One end of the air pipe is slidably connected with a pull rod adapted to it. A convex handle is fixedly connected to the top of the auxiliary handle. One end of the pull rod close to the convex handle is rotatably connected with a crank, and the crank is rotatably connected with the convex handle. The bottom of the auxiliary handle is rotatably connected with a slider slidably connected to the support guide plate. Both sides of the air box are communicated with air collecting pipes that can be communicated with the air pipe.

[0010] Preferably, the stabilizing assembly includes a plurality of support seats fixedly connected to the inside of the air box. The tops of the plurality of support seats are all rotatably connected with seesaws. Fixed frames are fixedly connected to the piston ends of the plurality of piston rods. An activity slot for connecting the fixed frame is opened at one end of the seesaw. An inclined panel is fixedly connected to one end of the seesaw. A tension spring fixedly connected to the air box is fixedly connected to the bottom of the inclined panel.

[0011] Preferably, a spring is sleeved on the outer surface of the piston rod. A pressure application shell is fixedly connected to the inside of the air box. A plurality of damping plates are uniformly disposed on the outer surface of the pressure application shell. And the plurality of damping plates are all adapted to the plurality of inclined panels.

[0012] Preferably, a connecting air pipe is communicated with one side of each of the plurality of extension cylinders. And the plurality of connecting air pipes are all communicated with the pressure application shell. A piston is slidably connected to the inside of the pressure application shell. A plurality of rotating plates that can abut against the piston are rotatably connected to the outer surface of the pressure application shell. And one end of each of the plurality of rotating plates is fixedly connected to a pressing plate fixedly connected to the damping plate.

[0013] Preferably, a spring rod is slidably connected to the bottom of the pressure application shell. And the top of the spring rod is fixedly connected to the piston.

[0014] Preferably, a cylinder for driving the movement of the air box is fixedly connected to the top of the moving frame, a plurality of sliding rods slidably connected to the moving frame are fixedly connected to the top of the air box, and a telescopic pipe for misaligning itself is fixedly connected to the inside of the collecting pipe.

[0015] Preferably, a driving member for driving the operation of the clamping jaw is fixedly connected to the top of the cross plate.

[0016] Preferably, a lead screw is threadedly connected to the inside of the connecting box, one end of the lead screw is rotatably connected to the moving frame, the other end of the lead screw is connected to a mounting plate, one ends of the positioning rods are fixedly connected to the mounting plate, and a reduction motor for driving the rotation of the lead screw is fixedly connected to the inside of the mounting plate.

[0017] Preferably, a bearing frame is fixedly connected to the bottom of the connecting box, a rotating member for driving the rotation of the bearing frame is fixedly connected to the top of the base, and the support guide plate is fixedly connected to the inside of the bearing frame.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. The rotating member drives the bearing frame to rotate, which can quickly change the horizontal position of the clamping jaw without moving the entire base of the robotic arm, improving the operation efficiency, reducing energy consumption and collision risks. The cooperation of the lead screw and the moving frame can accurately control the axial position of the clamping jaw to ensure accurate arrival at the target position and improve the grasping success rate. The driving component adaptively adjusts the supporting force of the auxiliary handle according to the weight of the object grasped by the clamping jaw. When grasping a heavier object, a larger negative pressure is generated in the air box, pulling the pull rod through the air pipe, tightening the crank to the convex handle, and tensing the auxiliary handle to provide stronger support; when grasping a lighter object, the spring restricts the movement of the piston rod, and the supporting force of the auxiliary handle is relatively small, avoiding energy waste and mechanical wear. The cooperation of the extension cylinder and the piston rod can flexibly detect the weight of the object grasped by the clamping jaw. When the clamping jaw grasps an object, the weight of the object is applied to the cross plate, and the cross plate pulls the piston rod to move inside the extension cylinder. By detecting the moving distance of the piston rod, the weight of the grasped object can be indirectly known. According to the different weights, the air pressure in the air box changes, and then drives the driving component to operate to different degrees, realizing different supporting forces according to the weight of the grasped object, improving the adaptability and operation stability of the robotic arm to objects of different weights. The setting of the spring plays a buffering and protective role. When grasping a lighter object, the elasticity of the spring can restrict the movement of the piston rod to avoid excessive movement of the piston rod and impact on the air box and other components. At the same time, during the operation of the robotic arm, if an unexpected situation or external impact occurs, the spring can absorb part of the energy, reduce the damage to the clamping jaw and other components of the robotic arm, and extend the service life of the robotic arm.

[0020] 2. The connection of the air pipe enables part of the gas to flow into the pressure shell when the piston rod moves. The gas pushes the piston upward, which in turn pushes the rotating plate to flip, squeezing the damping plate to exert pressure on the inclined panel. This pressure is fed back to the piston rod through the seesaw and the fixed frame, achieving moment balance and further improving the grasping stability of the gripper. The stable component fits tightly with the air tank, making full use of the space inside the air tank and the air pressure change. The flow of gas between the air tank and the pressure shell is realized through the air pipe, further optimizing the function of the air tank so that it can not only detect the weight of an object but also precisely control the movement of the piston rod through the stable component. The stable component works in coordination with other components of the robotic arm such as the lead screw, moving frame, and positioning rod, jointly improving the overall stability of the robotic arm. When the robotic arm performs actions such as rotation and axial movement, the stable component can ensure the position and posture of the gripper remain stable, reducing the errors and vibrations caused by the movement of the robotic arm and improving the operation accuracy and reliability of the robotic arm. Whether the gripper grasps a light object or a heavy object, the stable component can automatically adjust the damping force and pulling force according to the movement of the piston rod. For heavy objects, it can provide a greater damping force and pulling force to ensure stable grasping by the gripper; for light objects, it can also provide an appropriate resistance to prevent the gripper from moving excessively, improving the adaptability of the robotic arm to different working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 is a structural schematic diagram of the present invention with the base removed;

[0023] Figure 3 is a structural schematic diagram of the connection box of the present invention;

[0024] Figure 4 is a cross-sectional structural schematic diagram of the positioning rod of the present invention;

[0025] Figure 5 is a cross-sectional structural schematic diagram of the air pipe of the present invention;

[0026] Figure 6 is a cross-sectional structural schematic diagram of the extension cylinder of the present invention;

[0027] Figure 7 of the present invention Figure 6 is an enlarged schematic diagram of the structure at A;

[0028] Figure 8 is a cross-sectional structural schematic diagram of the air tank of the present invention;

[0029] Figure 9 is a cross-sectional structural schematic diagram of the piston rod of the present invention;

[0030] Figure 10For the present invention Figure 9 Schematic enlarged view of the structure at position B in the present invention

[0031] In the figure: 100, base; 101, rotating part; 102, bearing frame; 103, connecting box; 104, mounting plate; 105, reduction motor; 106, lead screw; 107, moving frame; 108, cylinder; 109, cross plate; 110, driving part; 111, jaw; 112, slide bar; 200, positioning rod; 201, support guide plate; 202, auxiliary handle; 203, slider; 204, convex handle; 205, air pipe; 206, pull rod; 207, crank; 208, air collecting pipe; 209, telescopic pipe; 300, air tank; 301, extension cylinder; 302, piston rod; 303, spring; 304, seesaw; 305, fixed frame; 306, support seat; 307, tension spring; 308, movable groove; 400, pressing shell; 401, connecting air pipe; 402, piston; 403, spring rod; 404, rotating plate; 405, pressing plate; 406, damping plate; 407, inclined panel Specific embodiments

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention

[0033] Embodiment 1: Please refer to Figure 1 、 Figure 2 and Figure 3, the present invention provides a technical solution: a robotic arm for industrial production with stable operation, including a base 100 and a connection box 103 arranged on top of it. A gripper 111 is arranged on one side of the connection box 103. A lead screw 106 is threadedly connected inside the connection box 103. One end of the lead screw 106 is rotatably connected to a moving frame 107, and the other end of the lead screw 106 is connected to a mounting plate 104. One ends of positioning rods 200 are fixedly connected to the mounting plate 104. A reduction motor 105 for driving the rotation of the lead screw 106 is fixedly connected inside the mounting plate 104. A bearing frame 102 is fixedly connected to the bottom of the connection box 103. A rotating member 101 for driving the rotation of the bearing frame 102 is fixedly connected to the top of the base 100. A support guide plate 201 is fixedly connected inside the bearing frame 102. By setting the rotating member 101, the bearing frame 102 can be effectively driven to rotate to change the position of the gripper 111, and by setting the lead screw 106, the gripper 111 can be driven to move axially. The rotating member 101 drives the rotation of the bearing frame 102, and the position of the gripper 111 can be flexibly changed. In industrial production, the working scenarios are complex and diverse, and the objects may be distributed in different orientations. By rotating the bearing frame 102, the robotic arm can quickly adjust the direction of the gripper 111 without frequently moving the entire base 100 of the robotic arm, greatly improving the operation efficiency, reducing the time and energy consumption required for the large-scale movement of the robotic arm in space, and at the same time reducing the collision risk that may be brought by the large-scale movement.

[0034] Please refer to Figure 3 , Figure 4 and Figure 5 , further including positioning rods 200 which are slidably connected inside the connection box 103, and one end of each positioning rod 200 is fixedly connected to a moving frame 107. A support guide plate 201 is arranged at the bottom of the connection box 103. An auxiliary handle 202 for assisting the positioning rod 200 is arranged at the bottom of the positioning rod 200. A driving assembly for tensioning the auxiliary handle 202 is arranged inside the positioning rod 200. By setting the cooperation between the positioning rod 200 and the lead screw 106, the smoothness of the movement of the moving frame 107 can be improved. Among them, the auxiliary handle 202 can assist in supporting the positioning rod 200, thereby improving the stability of the movement of the positioning rod 200. Among them, the driving assembly can further improve the supporting force of the auxiliary handle 202, thereby suppressing the loss of stability of the positioning rod 200 affected by gravity. The auxiliary handle 202 can assist in supporting the positioning rod 200, further improving the stability of the movement of the positioning rod 200. When the robotic arm is in different working states, the positioning rod 200 may be affected by various external forces. The auxiliary handle 202 provides an additional support point for the positioning rod 200 through the cooperation of the slider 203 and the support guide plate 201, effectively suppressing the loss of stability of the positioning rod 200 affected by gravity or other external forces and ensuring the reliability of the operation of the robotic arm.

[0035] Among them, please refer to the figure, Figure 2 and Figure 3, the driving assembly includes an air pipe 205 fixedly connected inside the positioning rod 200. One end of the air pipe 205 is slidably connected with a pull rod 206 adapted thereto. The top of the auxiliary handle 202 is fixedly connected with a convex handle 204. One end of the pull rod 206 close to the convex handle 204 is rotatably connected with a crank 207, and the crank 207 is rotatably connected with the convex handle 204. The bottom of the auxiliary handle 202 is rotatably connected with a slider 203 slidably connected with the support guide plate 201. Both sides of the air box 300 are communicated with air collecting pipes 208 that can be communicated with the air pipe 205. By setting the pull rod 206, the crank 207 can be pulled to move, thereby pulling the convex handle 204, so that the auxiliary handle 202 is in a taut state, thereby improving the stability of its support for the positioning rod 200. The driving assembly can further improve the support strength of the auxiliary handle 202 and can implement different support strengths according to the weight of the grasped object. The driving assembly composed of the air pipe 205, the pull rod 206, the crank 207, the convex handle 204, etc. pulls the crank 207 through the change of the air pressure in the air box 300, thereby tightening the convex handle 204 and making the auxiliary handle 202 in a taut state. When the jaw 111 grasps a heavier object, the air box 300 sucks a larger volume of gas from the air collecting pipe 208, further pulling the convex handle 204 to achieve the highest-efficiency auxiliary support; when grasping a lighter object, the movement of the piston rod 302 is inhibited by the elasticity of the spring 303, and the convex handle 204 is pulled slightly to achieve an adaptive adjustment of the support strength, which not only ensures the stability of the robotic arm when grasping heavy objects, but also avoids energy waste and mechanical wear caused by excessive support when grasping light objects.

[0036] Please refer to Figure 4 , Figure 5 and Figure 6, further, it also includes an air box 300, which is arranged below the mobile frame 107 and has a cavity inside. The bottom of the air box 300 is provided with a plurality of extension cylinders 301 connected thereto, and the bottoms of the plurality of extension cylinders 301 are slidably connected with piston rods 302 adapted thereto, the outer surface of the piston rod 302 is sleeved with a spring 303, and the bottoms of the plurality of piston rods 302 are fixedly connected with a cross plate 109 for carrying the clamping jaws 111, and the top of the cross plate 109 is fixedly connected with a driving member 110 for driving the clamping jaws 111 to operate, and the driving member 110 can effectively drive the clamping jaws 111 to operate and grasp objects, and the top of the mobile frame 107 is fixedly connected It is connected to a cylinder 108 for driving the air box 300 to move, and a plurality of slide rods 112 slidably connected to the movable frame 107 are fixedly connected to the top of the air box 300. A telescopic tube 209 is fixedly connected inside the air manifold 208 for its own misalignment. The cylinder 108 can drive the air box 300 to move and change the vertical position of the clamp 111, and the telescopic tube 209 can allow the air manifold 208 to be misaligned while ensuring the passage of gas. By setting the extension tube 301 and the piston rod 302 in coordination, the weight of the object grasped by the clamp 111 can be flexibly detected, thereby the transmission drive assembly can operate to different degrees, so that it can implement different supporting forces according to the weight of the grasped object.

[0037] It is worth mentioning that as the weight of the object grasped by the clamp 111 increases, it will first be applied to the horizontal plate 109. At this time, the horizontal plate 109 will pull the piston rod 302 away from the extension tube 301 to the maximum extent, so that the air box 300 absorbs a larger volume of gas from the gas manifold 208, thereby further pulling the protruding handle 204, thereby achieving the most efficient auxiliary support. When the weight of the object grasped by the clamp 111 is relatively small, the elasticity of the spring 303 will suppress the movement of the piston rod 302, thereby pulling the protruding handle 204 slightly.

[0038] Specifically, the reduction motor 105 is driven to drive the screw rod 106 to rotate, so that it is threadedly connected with the connection box 103 to drive the moving frame 107 to move, and then the cylinder 108 is operated to drive the air box 300 to move downward so that the clamping claw 111 moves downward close to the object, and the driving member 110 is operated to make the clamping claw 111 grab the object, and the rotating member 101 is operated to rotate the carrier frame 102. At the same time, when the positioning rod 200 moves, it will drive the auxiliary handle 202 to tilt, so as to pull the slider 203 to move in the support guide plate 201. Later, when the clamp 111 grabs an object, it will pull the cross plate 109 downward, causing the piston end of the piston rod 302 to move away from the extension tube 301, thereby sucking air from the air box 300. The negative pressure generated in the air box 300 will be transported to the air collecting pipe 208 through the air pipe 205 and enter the air box 300. At this time, the piston end of the pull rod 206 will move in the air pipe 205 to pull the crank 207, so that the crank 207 tightens the protruding handle 204, thereby tightening the auxiliary handle 202 and thereby increasing the supporting strength of the positioning rod 200.

[0039] In summary, the rotating member 101 drives the carrier 102 to rotate, which can quickly change the horizontal position of the jaw 111 without moving the entire robotic arm base 100, improving the operation efficiency and reducing the energy consumption and collision risk. The cooperation between the lead screw 106 and the moving frame 107 can accurately control the axial position of the jaw 111 to ensure accurate arrival at the target position, improving the grasping success rate. The drive assembly adaptively adjusts the supporting force of the auxiliary handle 202 according to the weight of the object grasped by the jaw 111. When grasping a heavier object, a larger negative pressure is generated in the air box 300, and the pull rod 206 is pulled through the air pipe 205, so that the crank 207 tightens the convex handle 204 and the auxiliary handle 202 is tightened to provide stronger support; when grasping a lighter object, the spring 303 inhibits the movement of the piston rod 302, and the supporting force of the auxiliary handle 202 is relatively small, avoiding energy waste and mechanical wear. The cooperation between the extension cylinder 301 and the piston rod 302 can flexibly detect the weight of the object grasped by the jaw 111. When the jaw 111 grasps an object, the weight of the object is applied to the cross plate 109, and the cross plate 109 pulls the piston rod 302 to move in the extension cylinder 301. By detecting the moving distance of the piston rod 302, the weight of the grasped object can be indirectly known. According to the different weights, the air pressure in the air box 300 changes, and then the drive assembly operates to different degrees, realizing different supporting forces according to the weight of the grasped object, improving the adaptability and operation stability of the robotic arm to objects of different weights. The setting of the spring 303 plays a buffering and protecting role. When grasping a lighter object, the elasticity of the spring 303 can inhibit the movement of the piston rod 302 to avoid the piston rod 302 moving excessively and impacting the air box 300 and other components. At the same time, during the operation of the robotic arm, if an unexpected situation or external impact occurs, the spring 303 can absorb part of the energy, reduce the damage to the jaw 111 and other components of the robotic arm, and extend the service life of the robotic arm.

[0040] Embodiment 2: Please refer to Figure 6 、 Figure 7 and Figure 8, the present invention also provides a technical solution, which is different from the technical solution of Embodiment 1: A robotic arm for industrial production with stable operation. A stability component for changing the resistance of the piston rod 302 is provided inside the air box 300. The stability component includes a plurality of support seats 306 fixedly connected inside the air box 300, and a seesaw 304 is rotatably connected to the top of each of the plurality of support seats 306. A fixed frame 305 is fixedly connected to the piston end of each of the plurality of piston rods 302. An activity slot 308 for connecting the fixed frame 305 is provided at one end of the seesaw 304. A sloping panel 407 is fixedly connected to one end of the seesaw 304, and a tension spring 307 fixedly connected to the air box 300 is fixedly connected to the bottom of the sloping panel 407. A pressure shell 400 is fixedly connected inside the air box 300. A plurality of damping plates 406 are evenly arranged on the outer surface of the pressure shell 400, and each of the plurality of damping plates 406 is adapted to each of the plurality of sloping panels 407. By providing the stability component, the pulling force of the piston rod 302 can be increased, thereby reducing the high displacement generated when the gripper 111 grabs and unloads an object. When the piston rod 302 moves downward, the cooperation between the fixed frame 305 and the seesaw 304 and the tension spring 307 can increase the moment. At the same time, the cooperation between the damping plate 406 and the sloping panel 407 can provide a damping force. When the sloping panel 407 is pried, it will gradually enter the inside of the damping plate 406, and then approach each other and rely on friction to increase the damping force, so that the piston rod 302 moves slowly instead of quickly, improving stability. When the piston rod 302 moves downward, the fixed frame 305 pulls the seesaw 304, combined with the cooperation of the tension spring 307, to increase the moment. This increase in moment enables the piston rod 302 to obtain a greater acting force during the pulling process, thereby more effectively bearing the force generated when the gripper 111 grabs and unloads an object and reducing the high displacement of the gripper 111. The cooperation between the damping plate 406 and the sloping panel 407 provides a variable damping force. When the sloping panel 407 is pried and gradually enters the inside of the damping plate 406, the two approach each other and rely on friction to increase the damping force. This controls the moving speed of the piston rod 302, and it will not move quickly but slowly and smoothly, greatly improving the stability of the movement of the piston rod 302.

[0041] Please refer to Figure 8 , Figure 9 and Figure 10, Further, on one side of each of the multiple extension cylinders 301, an air connecting pipe 401 is connected, and the multiple air connecting pipes 401 are all connected to a pressure shell 400. A piston 402 is slidably connected inside the pressure shell 400. On the outer surface of the pressure shell 400, multiple rotating plates 404 that can abut against the piston 402 are rotatably connected. One end of each of the multiple rotating plates 404 is fixedly connected to a pressing plate 405 fixedly connected to a damping plate 406. A spring rod 403 is slidably connected to the bottom of the pressure shell 400, and the top of the spring rod 403 is fixedly connected to the piston 402. By providing the air connecting pipe 401, part of the gas can flow when the piston rod 302 moves, and then enter the inside of the pressure shell 400, so that the piston 402 is forced to move upward and push the rotating plate 404 to flip, thereby squeezing the damping plate 406 to apply pressure to the inclined panel 407, and then pulling the fixed frame 305 to limit the movement of the piston rod 302, so as to achieve the balance of torque, and further improve the grasping stability of the jaw 111. The setting of the air connecting pipe 401 enables part of the gas to flow into the inside of the pressure shell 400 when the piston rod 302 moves. The gas pushes the piston 402 upward, and then pushes the rotating plate 404 to flip, squeezing the damping plate 406 to apply pressure to the inclined panel 407. This pressure is transmitted to the piston rod 302 through the seesaw 304 and the fixed frame 305, achieving the balance of torque and further improving the grasping stability of the jaw 111.

[0042] Specifically, as the piston rod 302 moves downward, it will drive the fixed frame 305 to move downward, thereby driving one end of the seesaw 304 to move downward and lifting the other end of the inclined panel 407 closer to the damping plate 406, so that the two are squeezed and closed with each other, thereby increasing the resistance of the piston rod 302 to move. At the same time, when the piston rod 302 moves downward, it will squeeze the gas to enter the inside of the pressure shell 400 through the air connecting pipe 401, and then push the piston 402 upward to abut against the rotating plate 404, causing it to drive the pressing plate 405 to move downward and push the damping plate 406 to squeeze the inclined panel 407, applying a pulling force to the piston rod 302, thereby inhibiting the continuous downward movement of the cross plate 109, so as to increase the pulling force and damping force of the piston rod 302 and avoid the jitter generated during transportation.

[0043] In summary, the setting of the connecting air pipe 401 enables some gas to flow into the inside of the pressure-applying housing 400 when the piston rod 302 moves. The gas pushes the piston 402 upward, and then pushes the rotating plate 404 to flip, squeezing the damping plate 406 to apply pressure to the inclined panel 407. This pressure is fed back to the piston rod 302 through the seesaw 304 and the fixed frame 305, achieving moment balance and further improving the grasping stability of the jaw 111. The stabilizing assembly closely cooperates with the air tank 300, making full use of the space and air pressure changes inside the air tank 300. The flow of gas between the air tank 300 and the pressure-applying housing 400 is realized through the connecting air pipe 401, further optimizing the function of the air tank 300, enabling it to not only detect the weight of an object but also precisely control the movement of the piston rod 302 through the stabilizing assembly. The stabilizing assembly works in coordination with other components of the robotic arm, such as the lead screw 106, the moving frame 107, the positioning rod 200, etc., jointly improving the overall stability of the robotic arm. When the robotic arm performs actions such as rotation and axial movement, the stabilizing assembly can ensure that the position and posture of the jaw 111 remain stable, reducing errors and vibrations caused by the movement of the robotic arm, and improving the operation accuracy and reliability of the robotic arm. Whether the jaw 111 grasps a light object or a heavy object, the stabilizing assembly can automatically adjust the damping force and pulling force according to the movement of the piston rod 302. For heavy objects, it can provide a greater damping force and pulling force to ensure stable grasping by the jaw 111; for light objects, it can also provide an appropriate resistance to prevent the jaw 111 from moving excessively, improving the adaptability of the robotic arm to different working conditions.

[0044] Working principle: During use, the drive reduction motor 105 can be driven to drive the lead screw 106 to rotate, causing it to be threadedly connected to the connection box 103 to drive the moving frame 107 to move, and then operating the cylinder 108 to drive the air tank 300 to move downward so that the jaw 111 moves downward close to the object. Operating the driving member 110 can cause the jaw 111 to grasp the object, and at the same time, operating the rotating member 101 can rotate the carrier 102 to rotate;

[0045] Meanwhile, when the positioning rod 200 moves, it will drive the auxiliary handle 202 to tilt, thereby pulling the slider 203 to move within the support guide plate 201. Subsequently, when the jaw 111 grabs an object, it will pull the cross plate 109 downward, causing the piston end of the piston rod 302 to move away from the extension cylinder 301, and then sucking air from the air tank 300. The negative pressure generated in the air tank 300 will be transported through the air pipe 205 into the air collecting pipe 208 and then into the air tank 300. At this time, the piston end of the pull rod 206 will move within the air pipe 205, thereby pulling the crank 207, causing the crank 207 to tighten the convex handle 204, so that the auxiliary handle 202 is tightened and the supporting force of the positioning rod 200 is improved. As the piston rod 302 moves downward, it will drive the fixed frame 305 to move downward, thereby driving one end of the seesaw 304 to move downward, causing the inclined panel 407 at the other end to tilt closer to the damping plate 406, so that the two are mutually extruded and closed, thereby increasing the resistance to the movement of the piston rod 302;

[0046] Meanwhile, when the piston rod 302 moves downward, it will squeeze the gas to enter the interior of the pressure application shell 400 through the connecting air pipe 401, and then push the piston 402 upward to abut against the rotating plate 404, causing it to drive the pressing plate 405 to move downward and push the damping plate 406 to squeeze the inclined panel 407, applying a pulling force to the piston rod 302, thereby inhibiting the continuous downward movement of the cross plate 109, thereby increasing the pulling force and damping force of the piston rod 302 and avoiding the jitter generated during transportation.

[0047] 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 actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0048] Although the embodiments of the present invention 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 principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stable operating industrial production robot arm, comprising a base (100) and a connection box (103) arranged on the top thereof, and a clamping claw (111) is arranged on one side of the connection box (103), characterized in that: Also includes: A positioning rod (200) is slidably connected to the interior of the connection box (103), and one end of the positioning rod is fixedly connected to a moving frame (107); a supporting guide plate (201) is provided at the bottom of the connection box (103); an auxiliary handle (202) for assisting the positioning rod (200) is provided at the bottom of the positioning rod (200); and a driving component for tightening the auxiliary handle (202) is provided inside the positioning rod (200); An air box (300) is arranged below the mobile frame (107) and has a cavity inside. The bottom of the air box (300) is provided with a plurality of extension tubes (301) connected thereto, and the bottoms of the plurality of extension tubes (301) are slidably connected with piston rods (302) adapted thereto, and the bottoms of the plurality of piston rods (302) are fixedly connected with a transverse plate (109) for supporting the clamping jaws (111), and a stabilizing component for changing the resistance of the piston rod (302) is provided inside the air box (300).

2. The stable-operating industrial production robot arm according to claim 1, characterized in that: The driving assembly includes an air pipe (205) fixedly connected to the inside of the positioning rod (200), one end of the air pipe (205) is slidably connected to a pull rod (206) adapted thereto, the top of the auxiliary handle (202) is fixedly connected to a convex handle (204), one end of the pull rod (206) close to the convex handle (204) is rotatably connected to a crank (207), and the crank (207) is rotatably connected to the convex handle (204), the bottom of the auxiliary handle (202) is rotatably connected to a slider (203) slidably connected to a support guide plate (201), and both sides of the air box (300) are connected to an air collecting pipe (208) that can be connected to the air pipe (205).

3. The stable-operating industrial production robot arm according to claim 2, characterized in that: The stabilizing assembly includes a plurality of support seats (306) fixedly connected to the inside of the air box (300), and the tops of the plurality of support seats (306) are rotatably connected to a seesaw (304), the piston ends of the plurality of piston rods (302) are fixedly connected to a fixed frame (305), one end of the seesaw (304) is provided with a movable groove (308) for connecting to the fixed frame (305), one end of the seesaw (304) is fixedly connected to an inclined panel (407), and the bottom of the inclined panel (407) is fixedly connected to a tension spring (307) fixedly connected to the air box (300).

4. The stable-operating industrial production robot arm according to claim 3, characterized in that: The outer surface of the piston rod (302) is sleeved with a spring (303), the interior of the air box (300) is fixedly connected with a pressure shell (400), the outer surface of the pressure shell (400) is evenly provided with a plurality of damping plates (406), and the plurality of damping plates (406) are all adapted to the plurality of inclined panels (407).

5. The stable-operating industrial production robot arm according to claim 4, characterized in that: One side of the plurality of extension tubes (301) is connected to an air connection pipe (401), and the plurality of air connection pipes (401) are connected to a pressure shell (400), the interior of the pressure shell (400) is slidably connected to a piston (402), the outer surface of the pressure shell (400) is rotatably connected to a plurality of rotating plates (404) that can abut against the piston (402), and one end of the plurality of rotating plates (404) is fixedly connected to a pressure plate (405) fixedly connected to a damping plate (406).

6. The stable-operating industrial production robot arm according to claim 5, characterized in that: The bottom of the pressure shell (400) is slidably connected to a spring rod (403), and the top of the spring rod (403) is fixedly connected to the piston (402).

7. The stable-operating industrial production robot arm according to claim 2, characterized in that: The top of the movable frame (107) is fixedly connected to a cylinder (108) for driving the air box (300) to move, the top of the air box (300) is fixedly connected to a plurality of sliding rods (112) slidably connected to the movable frame (107), and the interior of the air collecting pipe (208) is fixedly connected to a telescopic pipe (209) for its own misalignment.

8. The stable-operating industrial production robot arm according to claim 1, characterized in that: A driving member (110) for driving the clamping jaws (111) to operate is fixedly connected to the top of the transverse plate (109).

9. The stable-operating industrial production robot arm according to claim 1, characterized in that: The connection box (103) is internally threadedly connected to a screw rod (106), one end of the screw rod (106) is rotatably connected to a movable frame (107), the other end of the screw rod (106) is connected to a mounting plate (104), one end of each of the positioning rods (200) is fixedly connected to the mounting plate (104), and the interior of the mounting plate (104) is fixedly connected to a reduction motor (105) for driving the screw rod (106) to rotate.

10. The stable-operating industrial production robot arm according to claim 1, characterized in that: The bottom of the connection box (103) is fixedly connected to a carrier frame (102), the top of the base (100) is fixedly connected to a rotating member (101) for driving the carrier frame (102) to rotate, and the support guide plate (201) is fixedly connected to the inside of the carrier frame (102).

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