A robot arm for implementing industrial handling

Abstract

The application relates to the technical field of industrial carrying, in particular to a robot arm for realizing industrial carrying, which comprises two linear guides I, each of which comprises a sliding table, the sliding tables of the two linear guides I are fixedly connected with connecting blocks, a linear guide II is fixedly connected with a fixed plate, the fixed plate is rotatably connected with the two connecting blocks at two ends, the linear guide II comprises a sliding table, a linear guide III is fixedly connected with the sliding table of the linear guide II, the linear guide III comprises a sliding table, and the sliding table of the linear guide III is fixedly connected with a connecting shell. In the application, the robot arm is formed by the two linear guides I, the linear guide II and the linear guide III, the workpiece is adsorbed and fixed by using the expansion mechanism, then when the workpiece is transported by using the robot arm, the position of the linear guide III on the robot arm is adjusted by using the adjusting mechanism, the robot arm and the expansion mechanism are arranged to be inclined, so that the workpiece is not easy to be in contact with the robot arm, and the workpiece is convenient to transport.

Description

Technical Field

[0001] This invention relates to the field of industrial material handling technology, specifically a robotic arm for industrial material handling. Background Technology

[0002] Industrial robotic arms can move any object or tool according to time-varying spatial pose (position and orientation) requirements, thereby completing a specific industrial production task. An industrial robotic arm is defined as "an automatically controlled, reprogrammable, multi-purpose manipulator capable of programming three or more axes. It can be fixed or mobile. It is used in industrial automation applications." Common industrial handling robotic arms are mostly three-axis robotic arms, with their motion based on X, Y, and Z axes. Linear movement along three Cartesian axes offers advantages such as simple structure, low cost, and high positioning accuracy. However, multi-axis robotic arms with four or more axes, due to their multi-joint structure, have relatively poor rigidity. Under load, they are more prone to deformation and vibration, leading to decreased end-effector accuracy stability during high-speed movement or heavy-duty operations. Furthermore, long-term joint wear and accumulated clearances further amplify positioning errors, resulting in higher maintenance and calibration costs. The increased weight and inertia of the robotic arm also contribute to significant inertial impacts during start-up, stopping, and reversal. Therefore, multi-axis robotic arms with four or more axes are less commonly used in basic material handling processes. However, three-axis robotic arms are suitable for handling workpieces, especially large, lightweight sheet metal such as plastic sheets and thin aluminum sheets. These large workpieces are prone to collisions with the robotic arm's components, causing scratches or structural damage, which is inconvenient. Summary of the Invention

[0003] The purpose of this invention is to provide a robotic arm for industrial material handling, in order to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A robotic arm for industrial material handling includes:

[0006] A robot arm consisting of two linear guide rails (Linear Guide Rail 1, Linear Guide Rail 2, and Linear Guide Rail 3), an adjustment mechanism for adjusting the angle of the robot arm, and an extension mechanism for adsorbing and fixing the workpiece. Each of the two linear guide rails includes a slide table, and each slide table of the two linear guide rails is fixedly connected to a connecting block. Linear guide rail 2 is fixedly connected to a fixing plate, with both ends of the fixing plate rotatably connected to the two connecting blocks. Linear guide rail 2 also includes a slide table. Linear guide rail 3 is fixedly connected to the slide table of linear guide rail 2, and also includes a slide table, with a connecting shell fixedly connected to the slide table of linear guide rail 3. The adjustment mechanism is fixedly connected to the two linear guide rails and includes two upright plates, with a U-shaped plate rotatably connected between the tops of the two upright plates. Two U-shaped rods are arranged between the two arms of the U-shaped plate, and each arm of the two U-shaped rods is rotatably connected to a rotating rod. The two U-shaped rods correspond one-to-one with the two linear guide rails. The adjacent ends of the two rotating rods on the U-shaped rods are fixedly connected to the two ends of the corresponding linear guide rails. The extension mechanism is rotatably connected to the connecting shell.

[0007] Furthermore, the top surface of the U-shaped plate has two sliding grooves, and each of the two sliding grooves has a slider that is slidably engaged inside. The two sliders are located above the two U-shaped rods respectively, and the top surface of each slider is fixedly connected to multiple cylinders. The moving ends of the multiple cylinders are fixedly connected to the top surface of the adjacent U-shaped rods.

[0008] Furthermore, a connecting box is fixedly connected to one side of a vertical plate via a connecting frame, and a swing cylinder is installed inside the connecting box. The output end of the swing cylinder is fixedly connected to the end of the adjacent U-shaped plate.

[0009] Furthermore, multiple damping rods are fixedly connected to the opposite sides of the two U-shaped rods and the opposite sides of the two sliders. One end of the damping rod on the slider is fixedly connected to the U-shaped plate, and one end of the damping rod on the U-shaped rod is fixedly connected to a locking block. Multiple locking slots are opened on the adjacent sides of the two arms of the U-shaped plate, and the locking blocks slide and engage with the adjacent locking slots.

[0010] Furthermore, multiple return springs are fixedly connected to the opposite sides of the two U-shaped rods and the opposite sides of the two sliders. One end of the return spring on the slider is fixedly connected to the U-shaped plate, and one end of the return spring on the U-shaped rod is fixedly connected to the adjacent locking block.

[0011] Furthermore, the expanded organization includes:

[0012] The system comprises a rotating base, a rotating shell, a tube body, and multiple conduits. The top of the rotating base is rotatably connected to the bottom surface of the connecting shell. Two support plates are fixedly connected to the bottom surface of the rotating base. An electric push rod is fixedly connected to the top surface inside the connecting shell, and a pin is fixedly connected to the movable end of the electric push rod. The pin penetrates the bottom surface of the rotating base. The rotating shell is rotatably connected between the two support plates. The top of the tube body is fixedly connected to the bottom surface of the rotating shell. Suction cups are fixedly connected to the bottom ends of the multiple conduits. The interiors of the multiple conduits are connected to the interiors of the suction cups, and the multiple conduits are arranged circumferentially around the tube body.

[0013] Furthermore, a counterweight is fixedly connected to the bottom of the tube.

[0014] Furthermore, the outer wall of the pipe body is provided with multiple sliding grooves, and two collars are slidably sleeved on the outer wall of the pipe body. Each of the two collars is provided with an internal threaded cylinder, and multiple fixing rods are fixedly connected between the two collars and the adjacent internal threaded cylinders. The fixing rods are slidably engaged in the interior of the adjacent sliding grooves. Multiple outer walls of the conduit are fixedly connected with fixing blocks. Support arms are rotatably connected to the top and bottom ends of the fixing blocks. One end of the support arm at the top and bottom ends of the fixing blocks is rotatably connected to the outer walls of the two collars respectively.

[0015] Furthermore, the bottom surface of the rotating shell is rotatably connected to a positive and negative threaded screw, and the positive and negative threaded screw includes two threaded sections, which are respectively screwed into two internal threaded cylinders.

[0016] Furthermore, a drive motor is installed inside the rotating housing, and the motor shaft of the drive motor is fixedly connected to the top of the positive and negative thread screw.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. A robot arm is constructed using two linear guide rails, linear guide rail one, linear guide rail two, and linear guide rail three. An extension mechanism is then used to attach and fix the workpiece. When the robot arm is used to transport the workpiece, the position of linear guide rail three on the robot arm is adjusted by an adjustment mechanism so that linear guide rail three is in an oblique state with the extension mechanism, thereby making it less likely for the workpiece to come into contact with the robot arm, thus facilitating the transport of the workpiece.

[0019] 2. By using two linear guide rails, linear guide rail one and linear guide rail three, to form the XYZ three axes of the robot arm, the extension mechanism can transport the workpiece by moving the robot arm along the three axes. When the extension mechanism is transporting the workpiece, the swing cylinder can be activated to drive the U-shaped plate to deflect, thereby causing the robot arm as a whole to deflect in its own X-axis direction, so that linear guide rail three moves away from the extension mechanism.

[0020] 3. Adjust the height of the two U-shaped rods by starting the cylinder, so that the two U-shaped rods are arranged at different heights. When the two U-shaped rods are arranged at an angle, the robot arm will rotate in its own Y-axis direction. When the two U-shaped rods are arranged at an angle, the distance between the two U-shaped rods increases, so that the U-shaped rods can squeeze the adjacent damping rods and the return spring, and the linear guide rail on the U-shaped rods will naturally deflect to adapt to the angle arrangement of the U-shaped rods. When the two U-shaped rods return to parallel, the return spring can drive the damping rods and the adjacent U-shaped rods to return to their original positions.

[0021] 4. The tube body is naturally vertical due to gravity by using counterweights. Then, the electric push rod is activated to make the ejector pin contact the rotating shell to fix the position of the rotating shell and the tube body. Then, the drive motor is activated to drive the positive and negative thread screws to rotate, so that the positive and negative thread screws drive the two collars to move synchronously towards or away from each other. This causes the collars to drive multiple guide tubes to move synchronously away from or towards the tube body through the support arm. The distribution range of multiple guide tubes is adjusted according to the workpiece area. Then, the workpiece is adsorbed by the suction cup and transported in conjunction with the start of the robot arm. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram showing the positional relationship between the robot arm and the extension mechanism in this invention;

[0024] Figure 3 This is the present invention. Figure 2 Enlarged view of a portion of point A in the middle;

[0025] Figure 4 This is the present invention. Figure 2 Enlarged view of a section at point B in the middle;

[0026] Figure 5 This is an overall front view of the invention;

[0027] Figure 6 This is an exploded view of the adjusting mechanism structure in this invention;

[0028] Figure 7 This is a schematic diagram of the internal structure of the rotating seat in this invention;

[0029] Figure 8 This is a schematic diagram of the extended mechanism structure in this invention;

[0030] Figure 9 This is an exploded view of the extended mechanism structure in this invention.

[0031] In the diagram: 100, Linear guide rail one; 110, Connecting block; 200, Linear guide rail two; 210, Fixing plate; 300, Linear guide rail three; 310, Connecting shell; 400, Adjusting mechanism; 410, Vertical plate; 411, Connecting box; 420, U-shaped plate; 430, U-shaped rod; 431, Rotating rod; 440, Slider; 450, Damping rod; 451, Return spring; 500, Extension mechanism; 510, Rotating seat; 520, Rotating shell; 521, Positive and negative threaded screw; 530, Tube body; 540, Guide tube; 541, Suction cup; 542, Fixing block; 543, Support arm; 550, Collar; 560, Counterweight block. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figures 1-9 In this embodiment of the invention, a robotic arm for industrial material handling includes:

[0034] A robotic arm is constructed from three linear guides: a first linear guide 100, a second linear guide 200, and a third linear guide 300. It also includes an adjustment mechanism 400 for adjusting the angle of the robotic arm and an extension mechanism 500 for adsorbing and fixing the workpiece. Each of the two first linear guides 100 includes a slide table, and each slide table of the two first linear guides 100 is fixedly connected to a connecting block 110. A fixing plate 210 is fixedly connected to the second linear guide 200, with both ends of the fixing plate 210 rotatably connected to the two connecting blocks 110. The third linear guide 300 is fixedly connected to the slide table of the second linear guide 200 and also includes a slide table. The linear guide rail 300 has a slide table fixedly connected to a connecting shell 310. The adjusting mechanism 400 is fixedly connected to the two linear guide rails 100. The adjusting mechanism 400 includes two upright plates 410, and a U-shaped plate 420 is rotatably connected between the top ends of the two upright plates 410. Two U-shaped rods 430 are provided between the two arms of the U-shaped plate 420, and rotating rods 431 are rotatably connected to the two arms of the two U-shaped rods 430. The two U-shaped rods 430 correspond one-to-one with the two linear guide rails 100. The adjacent ends of the two rotating rods 431 on the U-shaped rods 430 are fixedly connected to the two ends of the corresponding linear guide rails 100. The expansion mechanism 500 is rotatably connected to the connecting shell 310.

[0035] Specifically, the robotic arm consists of three linear guides: linear guide 100, linear guide 200, and linear guide 300. Linear guide 100 forms the X-axis, linear guide 200 forms the Y-axis, and linear guide 300 forms the Z-axis. Linear guides 100, 200, and 300 are all automated linear guide modules, comprising guide rails, lead screws / synchronous belts, motors, etc., used to convert rotary motion into linear motion. These modules are commonly used in automated equipment. Automated linear guide modules are existing technology and will not be elaborated upon here. The extension mechanism 500 is used for workpiece movement... The workpiece is fixed by adsorption. After the extension mechanism 500 fixes the workpiece, the workpiece can be moved by the robot arm in three-axis coordinate movement to transport the workpiece. When transporting a large workpiece, the workpiece may touch the linear guide rail 300. At this time, the height of the two linear guide rails 100 can be controlled by adjusting the two U-shaped rods 430 on the adjustment mechanism 400. This will cause the linear guide rails 200 and 300 to tilt along the Y-axis of the robot arm, so that the linear guide rail 300 and the workpiece of the extension mechanism 500 are in an skewed state in the Y-axis direction, making it less likely for the workpiece to come into contact with the linear guide rail 300, thus facilitating the transportation of the workpiece.

[0036] Example 1

[0037] like Figure 1 and Figures 5-6 As shown, in this embodiment, two grooves are formed on the top surface of the U-shaped plate 420, and sliders 440 are slidably engaged inside each groove. The two sliders 440 are respectively located above the two U-shaped rods 430. Multiple cylinders are fixedly connected to the top surface of each slider 440, and the movable ends of the multiple cylinders are fixedly connected to the top surface of the adjacent U-shaped rods 430. A connecting box 411 is fixedly connected to one side of a vertical plate 410 through a connecting frame, and a swing cylinder is provided inside the connecting box 411. The output end of the swing cylinder is fixedly connected to the end of the adjacent U-shaped plate 420. The opposite sides of the two U-shaped rods 430 and the opposite sides of the two sliders 440 are fixedly connected. Multiple damping rods 450 are connected. One end of each damping rod 450 on the slider 440 is fixedly connected to the U-shaped plate 420. One end of each damping rod 450 on the U-shaped rod 430 is fixedly connected to a locking block. Multiple locking slots are opened on adjacent sides of the two arms of the U-shaped plate 420. The locking blocks slide and engage with the adjacent locking slots. Multiple return springs 451 are fixedly connected to the opposite sides of the two U-shaped rods 430 and the opposite sides of the two sliders 440. One end of each return spring 451 on the slider 440 is fixedly connected to the U-shaped plate 420. One end of each return spring 451 on the U-shaped rod 430 is fixedly connected to the adjacent locking block.

[0038] In this embodiment, the cylinder is equipped with a control system. Both the cylinder and the control system are existing technologies and will not be described in detail here. The U-shaped rod 430 and the slider 440 are supported and positioned by adjacent damping rods 450 and return springs 451. By activating the cylinder, the height of the two U-shaped rods 430 is adjusted, thereby controlling the two U-shaped rods 430 to be arranged parallel or tilted with one higher and one lower. When the two U-shaped rods 430 are tilted, the distance between them will be larger than the distance when they are parallel. When the U-shaped rods 430 move, they will drive the adjacent blocks to move through the damping rods 450 and return springs 451, and the U-shaped rods 430 will drive the adjacent sliders 440 to move laterally synchronously through the cylinder, thereby making the U-shaped rods 430 move horizontally. 430 and slider 440 press the adjacent return spring 451 and damping rod 450, and the two linear guide rails 100 deflect synchronously to adapt to the height adjustment of the two U-shaped rods 430. When the two U-shaped rods 430 are parallel, the return spring 451 can drive the adjacent U-shaped rods 430 to move laterally to reset. The swing cylinder is equipped with an electrical control system. The swing cylinder and its supporting electrical control system are existing technologies and will not be described in detail here. When the swing cylinder is started, it can drive the U-shaped plate 420, the two U-shaped rods 430 and the two linear guide rails 100 to tilt synchronously along the X-axis direction of the robot arm, so that the linear guide rail 300 and the extension mechanism 500 are tilted in the X-axis direction, so that the workpiece is not easy to contact the linear guide rail 300.

[0039] like Figure 2 , Figure 4 and Figures 7-9 As shown, in this embodiment, the extension mechanism 500 includes:

[0040] The rotating base 510, rotating shell 520, tube body 530, and multiple conduits 540 are included. The top of the rotating base 510 is rotatably connected to the bottom surface of the connecting shell 310. Two support plates are fixedly connected to the bottom surface of the rotating base 510. An electric push rod is fixedly connected to the top surface of the inner part of the connecting shell 310, and a pin is fixedly connected to the movable end of the electric push rod. The pin penetrates the bottom surface of the rotating base 510. The rotating shell 520 is rotatably connected between the two support plates. The top of the tube body 530 is fixedly connected to the bottom surface of the rotating shell 520. Suction cups 541 are fixedly connected to the bottom of the multiple conduits 540. The interior of the multiple conduits 540 is connected to the interior of the suction cups 541. The multiple conduits 540 are arranged circumferentially around the tube body 530. A counterweight block 560 is fixedly connected to the bottom of the tube body 530.

[0041] In practice, the angles of linear guide rail 100, linear guide rail 200, and linear guide rail 300 are controlled by adjusting mechanism 400, so that linear guide rail 300 is moved away from tube body 530. Then, counterweight block 560 is used to increase the weight at the bottom of tube body 530, making tube body 530 naturally perpendicular to the ground due to gravity. Once tube body 530 is perpendicular, the electric push rod can be activated to make the ejector pin contact the outer wall of rotating shell 520 for fixation. The outer wall of rotating shell 520 is covered with a rubber layer, so when the ejector pin contacts the outer wall of rotating shell 520, it penetrates into the rubber layer to reduce slippage. When it is necessary to adsorb and fix the workpiece, multiple guide tubes 540 can be moved simultaneously away from tube body 530 to expand the distribution area of ​​guide tubes 540. Then, an external suction pump is installed and connected to multiple guide tubes 540 through hoses. The suction pump draws air from the inside of the suction cup 541 through the hose and conduit 540, creating a negative pressure. This causes the suction cup 541 to adhere to the surface of the workpiece for fixation. The distribution range of the suction cup 541 can be adjusted according to the size of the workpiece, making it suitable for adsorbing and fixing plates of different specifications. This eliminates the need to change to suitable tooling fixtures based on the plate specifications, reducing fixture change time and improving work efficiency. The tube 530 retracts when it approaches the linear guide rail 300, reducing contact with the linear guide rail 300. The workpiece is then moved and transported by the sliding tables of linear guide rail 100, linear guide rail 200, and linear guide rail 300. The suction pump and electric push rod are each equipped with a control system. The suction pump, electric push rod, and their supporting control systems are all existing technologies and will not be described in detail here.

[0042] like Figure 8 and Figure 9 As shown, in this embodiment, the outer wall of the tube body 530 is provided with multiple sliding grooves, and two collars 550 are slidably sleeved on the outer wall of the tube body 530. Both collars 550 are provided with internal threaded cylinders, and multiple fixing rods are fixedly connected between the two collars 550 and the adjacent internal threaded cylinders. The fixing rods are slidably engaged in the adjacent sliding grooves. The outer walls of multiple guide tubes 540 are fixedly connected with fixing blocks 542. Both the top and bottom ends of the fixing blocks 542 are rotatably connected with support arms 543. One end of the support arms 543 at the top and bottom ends of the fixing blocks 542 is rotatably connected to the outer walls of the two collars 550 respectively.

[0043] In practice, by moving two collars 550 synchronously in opposite directions, the collars 550 can drive multiple fixed blocks 542 and conduits 540 to always be in a parallel state with the tube body 530 through adjacent support arms 543, and the multiple conduits 540 can move synchronously away from the tube body 530. When the two collars 550 move synchronously in opposite directions, the collars 550 can pull the multiple conduits 540 back to their original position through the support arms 543, thereby facilitating the control of the position of the multiple conduits 540.

[0044] Example 2

[0045] Based on Embodiment 1, the positions of multiple conduits 540 can be easily controlled by setting forward and reverse threaded screws 521.

[0046] like Figures 8-9 As shown, in this embodiment, a positive and negative thread screw 521 is rotatably connected to the bottom surface of the rotating shell 520, and the positive and negative thread screw 521 includes two thread sections. The two thread sections of the positive and negative thread screw 521 are respectively screwed into two internal thread cylinders. A drive motor is provided inside the rotating shell 520, and the motor shaft of the drive motor is fixedly connected to the top end of the positive and negative thread screw 521.

[0047] In specific implementation, the drive motor is equipped with a control system, and both the drive motor and its control system are existing technologies, which will not be described in detail here. By starting the drive motor, the positive and negative thread screw 521 can be rotated, so that when the positive and negative thread screw 521 rotates, it drives the two collars 550 to move towards or away from each other through its two-section thread, and the position of the collars 550 is positioned by the self-locking characteristic of the thread, so as to facilitate the adjustment of the position of the collars 550 and thus control the position of multiple conduits 540.

[0048] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0049] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A robotic arm for industrial material handling, characterized in that, include: Both linear guides (100) include a slide table, and the slide tables of both linear guides (100) are fixedly connected to a connecting block (110). Linear guide rail 2 (200) is fixedly connected to a fixing plate (210), and the two ends of the fixing plate (210) are respectively rotatably connected to two connecting blocks (110). The linear guide rail 2 (200) includes a slide table. Linear guide rail three (300) is fixedly connected to the slide of linear guide rail two (200). Linear guide rail three (300) includes a slide, and the slide of linear guide rail three (300) is fixedly connected to a connecting shell (310). An adjustment mechanism (400) is fixedly connected to two linear guide rails (100). The adjustment mechanism (400) includes two upright plates (410), and a U-shaped plate (420) is rotatably connected between the top ends of the two upright plates (410). Two U-shaped rods (430) are provided between the two arms of the U-shaped plate (420), and rotating rods (431) are rotatably connected to the two arms of the two U-shaped rods (430). The two U-shaped rods (430) correspond one-to-one with the two linear guide rails (100). The adjacent ends of the two rotating rods (431) on the U-shaped rods (430) are fixedly connected to the two ends of the corresponding linear guide rails (100). The extension mechanism (500) is rotatably connected to the connecting shell (310).

2. The robotic arm for industrial material handling according to claim 1, characterized in that, The top surface of the U-shaped plate (420) has two sliding grooves, and the sliding grooves are each fitted with a slider (440). The two sliders (440) are located above the two U-shaped rods (430). The top surface of each slider (440) is fixedly connected with multiple cylinders, and the movable ends of the multiple cylinders are fixedly connected to the top surface of the adjacent U-shaped rods (430).

3. The robotic arm for industrial material handling according to claim 2, characterized in that, Multiple damping rods (450) are fixedly connected to the opposite sides of the two U-shaped rods (430) and the opposite sides of the two sliders (440). One end of the damping rod (450) on the slider (440) is fixedly connected to the U-shaped plate (420). One end of the damping rod (450) on the U-shaped rod (430) is fixedly connected to a locking block. Multiple locking slots are opened on the adjacent sides of the two arms of the U-shaped plate (420). The locking blocks slide and engage with the adjacent locking slots.

4. The robotic arm for industrial material handling according to claim 3, characterized in that, Multiple return springs (451) are fixedly connected to the opposite sides of the two U-shaped rods (430) and the opposite sides of the two sliders (440). One end of the return spring (451) on the slider (440) is fixedly connected to the U-shaped plate (420), and one end of the return spring (451) on the U-shaped rod (430) is fixedly connected to the adjacent block.

5. The robotic arm for industrial material handling according to claim 1, characterized in that, A connecting box (411) is fixedly connected to one side of a vertical plate (410) via a connecting frame, and a swing cylinder is provided inside the connecting box (411). The output end of the swing cylinder is fixedly connected to the end of the adjacent U-shaped plate (420).

6. The robotic arm for industrial material handling according to claim 4 or 5, characterized in that, The extension mechanism (500) includes: The rotating seat (510) is rotatably connected to the bottom surface of the connecting shell (310) at its top end. Two support plates are fixedly connected to the bottom surface of the rotating seat (510). An electric push rod is fixedly connected to the top surface of the connecting shell (310), and a pin is fixedly connected to the movable end of the electric push rod. The pin penetrates the bottom surface of the rotating seat (510). The rotating shell (520) is rotatably connected between the two support plates; The top end of the tube body (530) is fixedly connected to the bottom surface of the rotating shell (520); Multiple conduits (540) are fixedly connected to a suction cup (541) at their bottom ends. The interiors of the multiple conduits (540) are connected to the interiors of the suction cups (541), and the multiple conduits (540) are arranged in a circle around the tube body (530).

7. The robotic arm for industrial material handling according to claim 6, characterized in that, The outer wall of the tube body (530) is provided with multiple sliding grooves, and two collars (550) are slidably sleeved on the outer wall of the tube body (530). Both collars (550) are provided with internal threaded cylinders, and multiple fixing rods are fixedly connected between the two collars (550) and the adjacent internal threaded cylinders. The fixing rods are slidably engaged in the adjacent sliding grooves. The outer walls of the multiple conduits (540) are fixedly connected with fixing blocks (542). Both ends of the top and bottom of the fixing blocks (542) are rotatably connected with support arms (543). One end of the support arms (543) at the top and bottom of the fixing blocks (542) is rotatably connected to the outer walls of the two collars (550).

8. The robotic arm for industrial material handling according to claim 7, characterized in that, The bottom surface of the rotating shell (520) is rotatably connected to a positive and negative thread screw (521), and the positive and negative thread screw (521) includes two thread sections. The two thread sections of the positive and negative thread screw (521) are respectively screwed into two internal thread cylinders.

9. The robotic arm for industrial material handling according to claim 8, characterized in that, The rotating housing (520) is equipped with a drive motor, and the motor shaft of the drive motor is fixedly connected to the top of the positive and negative thread screw (521).

10. The robotic arm for industrial material handling according to claim 6, characterized in that, A counterweight (560) is fixedly connected to the bottom end of the tube (530).

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