Lightweight high-speed response manipulator device

Abstract

The invention belongs to the technical field of manipulators, and particularly discloses a lightweight high-speed response manipulator device which comprises a mechanical arm, a connecting seat, a vacuum chuck and two supporting structures, the connecting seat is fixed to the front end of the mechanical arm, the vacuum chuck is arranged at the lower end of the connecting seat, and the two supporting structures are symmetrically arranged on the two sides of the connecting seat; specifically, extension plates are fixedly installed at the positions, close to the two sides, of the top of the connecting base, adjusting assemblies are arranged at the positions, close to the two sides, of the bottoms of the extension plates, and under cooperative use of the adjusting assemblies, a first rack plate fixed to a movable plate can drive a rotating gear engaged with the first rack plate to rotate; and furthermore, a second rack plate meshed with the rotating gear can push a sliding plate to move towards the other side, so that the sliding plate is just located under the wood board, and the wood board falling accidentally can be supported. The safety of the wood board carrying manipulator can be improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of mechanical hands, and more particularly relates to a lightweight high-speed response mechanical hand device. BACKGROUND

[0002] In the modern wood processing, furniture manufacturing, building board conveying and other industries, in order to improve production efficiency, reduce labor intensity and meet the needs of automated production, mechanical hand devices have been widely used in the conveying, stacking, feeding and other processes of wood boards. Among them, the mechanical hand based on the principle of vacuum adsorption has been widely used in the field of wood board conveying due to its non-contact grabbing, small damage to the surface of the workpiece, and the ability to realize multi-point adsorption to adapt to different sizes and shapes of workpieces.

[0003] The typical structure of the existing vacuum adsorption type wood board conveying mechanical hand usually includes a lightweight designed mechanical arm body, a plurality of vacuum cups arranged at the end of the mechanical arm, and a matching vacuum generating system (such as a vacuum pump, a vacuum valve, etc.). In work, the vacuum cup contacts the upper surface of the wood board and discharges the air in the cup, uses the atmospheric pressure difference to adsorb and lift the wood board, and then the mechanical arm releases the wood board after conveying it to the target position according to the preset program.

[0004] Since the vacuum cup only acts on the upper surface of the wood board, the bottom of the wood board is in a completely suspended and unsupported state during the entire conveying process after being adsorbed and lifted. Once the vacuum degree drops or completely loses pressure due to vacuum pipeline rupture, sealing failure, vacuum pump failure, power interruption or other unexpected situations during conveying, the wood board will instantly lose adsorption force. Due to the lack of effective bottom support mechanism, the wood board that loses adsorption will directly fall freely due to its own gravity, which not only easily causes damage to the conveyed wood board (such as cracking, breaking, surface scratching), but also poses a serious safety threat to the operators, equipment or other materials below, greatly increasing the safety risk and management difficulty of the production site. In particular, in the application scene of high-speed response and rapid conveying, once the pressure loss occurs, the reaction time left for the operator is extremely short, and the accident consequences are often more serious. SUMMARY

[0005] In view of the above defects or improvement needs of the prior art, the present application provides a lightweight high-speed response mechanical hand device, which aims to realize rapid support of the wood board and improve the safety of wood board conveying.

[0006] To achieve the above purpose, the present application provides a lightweight high-speed response mechanical hand device, which comprises a mechanical arm, a connecting seat, a vacuum cup and a support structure, wherein: The connecting seat is fixed at the front end of the mechanical arm, the vacuum cup is arranged at the lower end of the connecting seat, and two groups of support structures are symmetrically arranged on both sides of the connecting seat; Each group of support structures comprises an extension plate fixed on one side of the top of the connecting seat, an adjusting assembly and a mounting seat arranged on the outside and inside of the bottom of the extension plate respectively, and a pushing assembly arranged at the bottom of the connecting seat. The adjusting assembly comprises a movable plate movably arranged on the outermost side of the bottom of the extension plate, a first rack plate fixedly arranged on the movable plate, and a rotating gear engaged with the first rack plate.

[0007] As a further preferred, the pushing assembly comprises a rectangular groove opened on the top of the sliding plate, a recess provided in the inner cavity of the rectangular groove, and a pressure sensor fixedly arranged on the inner cavity bottom of the recess.

[0008] As a further preferred, each group of support structures further comprises a limiting assembly comprising a screw rod fixedly arranged on the bottom of the recess, a rotating block movably arranged in the inner cavity of the sliding plate, and a rotating disc fixedly arranged on the outer periphery of the rotating block.

[0009] As a further preferred, the bottom of the recess is fixedly provided with a fixed telescopic rod near the periphery, the bottom end of the fixed telescopic rod is fixedly connected with the inner cavity bottom of the rectangular groove, and the outer periphery of the fixed telescopic rod is movably provided with a fixed spring, and the two ends of the fixed spring are fixedly connected with the recess and the inner cavity bottom of the rectangular groove.

[0010] As a further preferred, the top of the rotating disc is provided with an arc-shaped opening near one side, and the top end of the bending rod movably penetrates the inner cavity of the arc-shaped opening.

[0011] As a further preferred, the side plate and each extrusion block are fixedly provided with a movable telescopic rod, the outer periphery of the movable telescopic rod is movably provided with a movable spring, and the two ends of the movable spring are fixedly connected with the side plate and the extrusion block.

[0012] As a further preferred, the top of the movable plate and the bottom of the extension plate are fixedly provided with a plurality of reset telescopic rods, the outer periphery of the reset telescopic rod is movably provided with a reset spring, and the two ends of the reset spring are fixedly connected with the movable plate and the extension plate.

[0013] As a further preferred, the sliding plate bottom is fixedly provided with a dovetail block, the mounting seat top is provided with a dovetail groove, and the dovetail block is slidably connected with the dovetail groove.

[0014] As a further preferred, the mounting seat top and the extension plate bottom are fixedly provided with a plurality of connecting telescopic rods, the outer periphery of the connecting telescopic rod is movably provided with a connecting spring, and the two ends of the connecting spring are fixedly connected with the extension plate and the mounting seat.

[0015] As a further preferred, the front side of the rotating gear is rotatably connected with a connecting shaft, and the end of the connecting shaft is fixedly provided with a vertical plate, and the top of the vertical plate is fixedly connected with the extension plate.

[0016] Overall, compared with the prior art, the above technical scheme of the present application mainly has the following technical advantages: 1. The adjusting assembly is arranged below the connecting seat, the first rack plate fixed on the movable plate can drive the rotating gear engaged therewith to rotate, and then the second rack plate engaged with the rotating gear pushes the sliding plate to move to the other side, so that the sliding plate is just located below the wood plate, and can provide support for the wood plate accidentally falling, thereby improving the safety of wood plate carrying.

[0017] 2. The pushing assembly is further designed, the wood plate is detected by the pressure sensor, at this time, the electric telescopic rod is extended and pushes the pushing plate to move downward until the wood plate is contacted, the pushing plate can completely take the wood plate off the vacuum suction cup and make it fall on the top of the sliding plate, which effectively avoids the wood plate tilting due to the problem of the vacuum suction cup, ensures the continuous carrying of the wood plate, and improves the safety of the device for carrying the wood plate.

[0018] 3. The limiting assembly is further designed, the rotating disc fixed on the outer periphery of the rotating block pushes the side plate to move to the other side, and the side plate is provided with a plurality of extrusion blocks, which can effectively limit the side of the wood plate, prevent the wood plate from falling off the vacuum suction cup to the sliding plate, avoid sliding during carrying, and improve the stability of wood plate transportation. DETAILED DESCRIPTION

[0019] Figure 1 It is a whole three-dimensional structure schematic view of the lightweight high-speed response mechanical hand device of the embodiment of the present application.

[0020] Figure 2 It is another perspective structure schematic view of the lightweight high-speed response mechanical hand device of the embodiment of the present application.

[0021] Figure 3 It is a bottom view three-dimensional structure schematic view of the mechanical arm and the mounting seat of the embodiment of the present application.

[0022] Figure 4This is a schematic diagram of the three-dimensional structure of the driving component according to an embodiment of the present invention.

[0023] Figure 5 This is a schematic diagram of the three-dimensional structure of the adjustment component according to an embodiment of the present invention.

[0024] Figure 6 This is a schematic diagram of the three-dimensional structure of the bent rod, side plate, and rotating disk according to an embodiment of the present invention.

[0025] Figure 7 This is a partial structural diagram of the fixed telescopic rod, fixed spring, and rotating disk in an embodiment of the present invention.

[0026] Figure 8 This is a three-dimensional structural diagram of the limiting component according to an embodiment of the present invention.

[0027] Figure 9 For the present invention Figure 5 Enlarged view of point A in the middle.

[0028] Figure 10 For the present invention Figure 7 Enlarged view of section B in the middle.

[0029] In all the accompanying drawings, the same reference numerals are used to denote the same elements or structures, wherein: 1-robotic arm, 2-connecting seat, 3-vacuum suction cup, 4-extension plate, 5-mounting base, 51-connecting telescopic rod, 52-connecting spring, 6-vacuum pump, 7-adjusting assembly, 71-moving plate, 711-reset telescopic rod, 712-reset spring, 72-first rack plate, 73-rotating gear, 731-connecting shaft, 732-vertical plate, 74-second rack plate, 75 - Sliding plate, 751- Dovetail block, 752- Dovetail groove, 8- Pushing assembly, 81- Groove, 82- Pressure sensor, 83- Electric telescopic rod, 84- Pushing plate, 85- PLC controller, 9- Limiting assembly, 91- Helical rod, 92- Rotating block, 93- Rotating disk, 931- Arc-shaped opening, 94- Bent rod, 95- Side plate, 96- Extrusion block, 961- Movable telescopic rod, 962- Movable spring, 97- Fixed telescopic rod, 98- Fixed spring. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0031] This invention provides a lightweight, high-speed response robotic arm device, such as... Figures 1 to 10As shown, it includes a robotic arm 1, a connecting base 2, a vacuum suction cup 3, and a support structure, wherein: A connecting seat 2 is fixed to the front end of the robotic arm 1. Vacuum suction cups 3 are installed through the bottom of the connecting seat 2 near the front and rear sides. A vacuum pump 6 is fixedly installed at the middle of the top of the connecting seat 2, and a fixed mounting connector is fixedly installed at the air inlet end of the vacuum pump 6. A hose is fixedly installed between the connector and the adjacent vacuum suction cup 3. Two sets of support structures are symmetrically arranged on both sides of the connecting seat 2. Each set of support structures includes an extension plate 4, an adjustment component 7, a mounting seat 5, a pushing component 8, and a limiting component 9. Specifically, an extension plate 4 is fixedly installed at the top of the connecting seat 2 near both sides. An adjustment component 7 is provided at the bottom of the extension plate 4 near both sides. A mounting seat 5 is provided at the bottom of the extension plate 4 near the opposite side. A pushing component 8 is provided at the opposite side of the mounting seat 5. A limiting component 9 is provided at the bottom of the connecting seat 2.

[0032] Specifically, robotic arm 1 is made of 7075 aerospace-grade aluminum. This material can achieve strength close to that of steel through heat treatment, but its density is only 1 / 3 that of steel. It is easy to process and the cost is relatively controllable, making it a commonly used lightweight material for industrial robot arms.

[0033] The adjustment assembly 7 includes a movable plate 71 located near one side of the bottom of the extension plate 4. A first rack plate 72 is fixedly installed on the other side of the movable plate 71 near the bottom. A rotating gear 73 is engaged on the other side of the first rack plate 72. A second rack plate 74 is engaged at the bottom of the rotating gear 73. A sliding plate 75 is fixedly installed on the other side of the second rack plate 74, and the sliding plate 75 moves through one side of the adjacent mounting base 5.

[0034] Specifically, when the movable plate 71 moves upward, it will drive the first rack plate 72 fixed to it to move upward synchronously. Since the first rack plate 72 meshes with the rotating gear 73, the upward movement of the first rack plate 72 will drive the rotating gear 73 to rotate, which will cause the second rack plate 74 meshed with it to move horizontally, specifically by sliding away from the mounting base 5. This horizontal movement of the second rack plate 74 will directly drive the sliding plate 75 fixedly connected to it, causing the sliding plate 75 to slide along one side of the mounting base 5. The position of the sliding plate 75 can be adjusted to provide sufficient space for the vacuum suction cup 3 to adsorb the wooden board.

[0035] Dovetail blocks 751 are fixedly installed on the bottom of the sliding plate 75 near the front and rear sides. Dovetail grooves 752 are opened on the top of the mounting base 5 near the front and rear sides, and the dovetail blocks 751 are slidably connected to the inner cavity of the adjacent dovetail grooves 752 respectively.

[0036] Specifically, when the sliding plate 75 slides horizontally under the drive of the second rack plate 74, the dovetail blocks 751 on its bottom front and rear sides will correspondingly embed into the inner cavity of the dovetail groove 752 opened on the top of the mounting base 5, and slide smoothly along the extension direction of the dovetail groove 752. This matching structure of the dovetail block 751 and the dovetail groove 752 can accurately guide the movement of the sliding plate 75, effectively preventing the sliding plate 75 from shaking up and down or shifting left and right during the sliding process, ensuring that the sliding plate 75 always moves on the preset horizontal trajectory, thereby ensuring the accuracy and stability of its position adjustment.

[0037] Several reset telescopic rods 711 are fixedly installed on the top of the movable plate 71, and the top ends of the reset telescopic rods 711 are fixedly connected to the extension plate 4. Reset springs 712 are movably sleeved on the outer periphery of the reset telescopic rods 711, and the two ends of the reset springs 712 are fixedly connected to the movable plate 71 and the extension plate 4 respectively.

[0038] Specifically, during the lifting of the timber, the movable plate 71 moves away from the worktable. With the assistance of the return spring 712, the movable plate 71 can move downwards. A first rack plate 72 fixed to the movable plate 71 drives a rotating gear 73 to rotate. Subsequently, a second rack plate 74, meshing with the rotating gear 73, pushes a sliding plate 75 to the other side, positioning it precisely beneath the timber. This provides support for any accidentally dropped timber, thereby improving the safety of timber handling.

[0039] The front side of the rotating gear 73 is rotatably connected to the connecting shaft 731, and the end of the connecting shaft 731 is fixedly mounted with the upright plate 732, and the top of the upright plate 732 is fixedly connected to the extension plate 4.

[0040] Specifically, by setting the connecting shaft 731 and the vertical plate 732, the rotating gear 73 can be supported, thereby improving the stability of the rotating gear 73 during operation.

[0041] Several connecting telescopic rods 51 are fixedly installed on the top of the mounting base 5, and the top ends of the connecting telescopic rods 51 are fixedly connected to the extension plate 4. Connecting springs 52 are movably sleeved on the outer periphery of the connecting telescopic rods 51, and the two ends of the connecting springs 52 are fixedly connected to the extension plate 4 and the mounting base 5 respectively.

[0042] Specifically, when the mounting base 5 contacts the processing table, the connecting spring 52 is compressed, thereby causing the mounting base 5 and the movable plate 71 to move upward synchronously at a specific position; during the process of lifting the wooden board, the sliding plate 75 can be accurately positioned at the bottom of the wooden board.

[0043] The pushing component 8 includes a rectangular groove on the top of the sliding plate 75, and the inner cavity of the rectangular groove is provided with a groove 81. A pressure sensor 82 is fixedly installed at the bottom of the inner cavity of the groove 81. A PLC controller 85 is fixedly installed at the top of the extension plate 4 near the middle position. An electric telescopic rod 83 is fixedly installed at the bottom of the connecting seat 2, and a pushing plate 84 is fixedly installed at the bottom end of the electric telescopic rod 83.

[0044] Specifically, when the wooden board is lifted, if the vacuum suction cup 3 causes one side to lose negative pressure adhesion, the board will tilt. At this time, the weight of the board acts on the pressure sensor 82 in the groove 81, and the pressure sensor 82 transmits the detected pressure signal to the PLC controller 85. Upon receiving the signal, the PLC controller 85 controls the electric telescopic rod 83 to start according to the preset program. The electric telescopic rod 83 extends and pushes the push plate 84 downward until it contacts the wooden board. The push plate 84 can completely remove the wooden board from the vacuum suction cup 3 and place it on top of the sliding plate 75. This process effectively avoids the tilting of the wooden board caused by the vacuum suction cup 3, ensuring the continued handling of the wooden board, thereby improving the safety of the device in handling the wooden board.

[0045] The limiting component 9 is fixedly installed on the spiral rod 91 at the bottom of the groove 81. The bottom of the inner cavity of the sliding plate 75 is movably connected to the rotating block 92 (when the spiral rod 91 moves in the inner cavity of the rotating block 92, the rotating block 92 can be rotated, which is based on the principle of the children's toy "hand-push flying saucer"). The bottom end of the spiral rod 91 movably passes through the inner cavity of the rotating block 92. A rotating disk 93 is fixedly sleeved on the outer periphery of the rotating block 92. A bent rod 94 movably passes through the top of the rotating disk 93 near one side. The bottom end of the bent rod 94 is connected to the bottom of the inner cavity of the rectangular groove. The sliding connection has a side plate 95 fixedly installed at the end of the bent rod 94. Several extrusion blocks 96 are provided on the other side of the side plate 95. The extrusion blocks 96 are arranged linearly from top to bottom. Fixed telescopic rods 97 are fixedly installed at the bottom of the groove 81 near the periphery. The bottom ends of the fixed telescopic rods 97 are fixedly connected to the bottom of the inner cavity of the rectangular groove. Fixed springs 98 are movably sleeved on the outer periphery of the fixed telescopic rods 97. The two ends of the fixed springs 98 are fixedly connected to the bottom of the inner cavity of the groove 81 and the rectangular groove, respectively.

[0046] Specifically, when the wooden board is placed on top of the groove 81, under the action of gravity, the spiral rod 91 can move within the inner cavity of the rotating block 92, thereby driving the rotating block 92 to rotate. Through the rotating disk 93 fixed to the outer periphery of the rotating block 92, the bent rod 94 can push the side plate 95 to the other side. With the help of several pressing blocks 96 on the side plate 95, the side of the wooden board can be effectively limited, preventing the wooden board from falling off the vacuum suction cup 3 onto the sliding plate 75, avoiding slippage during handling, and thus improving the stability of the wooden board transportation.

[0047] An arc-shaped opening 931 is provided on the top of the rotating disk 93 near one side, and the top of the bent rod 94 moves through the inner cavity of the arc-shaped opening 931.

[0048] Specifically, the arc-shaped opening 931 provides a precise guide trajectory for the movement of the bent rod 94. When the rotating disk 93 rotates together with the rotating block 92, the top of the bent rod 94 slides within the arc-shaped opening 931, effectively controlling the direction and stroke of the bent rod 94. This ensures that the side plate 95 can move smoothly along the preset path, and that the limiting action of the several pressing blocks 96 on the side of the wooden board is accurate and reliable. This design not only prevents the bent rod 94 from deviating or jamming during movement, but also optimizes the pressing force and range of action of the pressing blocks 96 by adjusting the curvature of the arc-shaped opening 931 according to the actual size and placement of the wooden board, further improving the adaptability to wooden boards of different specifications and the clamping stability.

[0049] Each side of the extrusion block 96 is fixedly equipped with a movable telescopic rod 961, and one end of the movable telescopic rod 961 is fixedly connected to the side plate 95. The outer periphery of the movable telescopic rod 961 is movably sleeved with a movable spring 962, and the two ends of the movable spring 962 are fixedly connected to the side plate 95 and the extrusion block 96 respectively.

[0050] Specifically, the combined design of the movable telescopic rod 961 and the movable spring 962 gives the compression block 96 the ability to elastically buffer. When the compression block 96 contacts the side of the wooden board and applies pressure, if there is a slight dimensional deviation in the wooden board or a slight offset in its placement, the movable spring 962 will compress or stretch accordingly based on the actual contact situation, causing the movable telescopic rod 961 to extend or retract for adjustment. This elastic adjustment mechanism not only avoids indentations or damage to the surface of the wooden board that may be caused by rigid contact, but also automatically compensates for the gap between the wooden board and the compression block 96, ensuring that the compression block 96 always fits tightly against the side of the wooden board with appropriate pressure. At the same time, the elasticity of the movable spring 962 can provide a continuous and uniform clamping force. When the robot encounters slight vibrations during high-speed movement or transfer, the movable spring 962 can absorb some of the impact energy, reducing the displacement of the wooden board caused by vibration, further enhancing the stability and reliability of the wooden board clamping, enabling the robot device to better adapt to the clamping needs of wooden boards with different materials and surface conditions.

[0051] In summary, the working principle of this invention is as follows: During operation, the vacuum pump 6 provides negative pressure to the vacuum suction cups 3 on both sides of the bottom of the connecting seat 2 through a hose, so that they firmly adhere to the wooden board; the extension plates 4 on both sides of the connecting seat 2 are kept stable on the mounting seat 5 through the connecting telescopic rod 51 and the connecting spring 52. Before the mounting seat 5 contacts the processing table, the movable plate 71 will contact the processing table first. During the continuous upward movement of the movable plate 71, when the mounting seat 5 contacts the processing table, the connecting spring 52 is compressed, causing the mounting seat 5 and the movable plate 71 to move upward synchronously, preparing for the initial positioning of the sliding plate 75; in the adjusting assembly 7, the movable plate 71 is acted upon by the reset telescopic rod 711 and the reset spring 712, and moves downward when the wooden board is lifted away from the table surface, driving the first rack plate 72 to drive the rotating gear 73 to rotate, thereby causing the second rack plate 74 to push the sliding plate 75 horizontally to directly below the wooden board, forming a bottom support when pressure is lost; the sliding plate 75 cooperates with the dovetail groove 752 of the mounting seat 5 through the dovetail block 751 to ensure the accuracy and stability of the movement trajectory. If the wooden board tilts due to loss of pressure in the vacuum suction cup 3, the pressure sensor 82, located in the rectangular groove 81 of the sliding plate 75, detects the pressure change and transmits the signal to the PLC controller 85. The controller immediately activates the electric telescopic rod 83 at the bottom of the connecting seat 2, pushing the push plate 84 downward to remove the wooden board from the suction cup and smoothly place it onto the sliding plate 75, preventing it from falling. At the same time, when the wooden board falls into the groove 81, gravity causes the spiral rod 91 to move downward in the inner cavity of the rotating block 92, driving the rotating block 92 to rotate, which in turn drives the outer rotating disk 93 to rotate. This causes the bent rod 94, whose top end passes through the arc-shaped opening 931 of the rotating disk 93, to push the side plate 95 to move laterally. Several pressing blocks 96 arranged linearly on the side plate 95 then approach the side of the wooden board. Based on the pre-tightening of the fixed telescopic rod 97 and the fixed spring 98, the pressing blocks 96, through the elastic buffering of the movable telescopic rod 961 and the movable spring 962, adaptively conform to the side profile of the wooden board, forming a uniform and stable lateral limit to prevent slippage or detachment during handling.

[0052] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A lightweight, high-speed response robotic arm device, characterized in that, It includes a robotic arm (1), a connecting seat (2), a vacuum suction cup (3), and a support structure, wherein: The connecting seat (2) is fixed to the front end of the robotic arm (1), the vacuum suction cup (3) is set at the lower end of the connecting seat (2), and the two sets of support structures are symmetrically arranged on both sides of the connecting seat (2); Each set of support structures includes an extension plate (4), an adjustment component (7), a mounting base (5), and a pushing component (8). The extension plate (4) is fixed on one side of the top of the connecting base (2). The adjustment component (7) and the mounting base (5) are respectively located on the outer and inner sides of the bottom of the extension plate (4). The pushing component (8) is located at the bottom of the connecting base (2). The adjustment assembly (7) includes a movable plate (71) movably mounted on the outermost bottom of the extension plate (4), on which a first rack plate (72) is fixedly mounted, and a rotating gear (73) meshes with the first rack plate (72); a second rack plate (74) meshes with the bottom of the rotating gear (73) on one side, and a sliding plate (75) is fixedly mounted on the other side, which movably passes through one side of the adjacent mounting base (5).

2. The lightweight, high-speed response robotic arm device as described in claim 1, characterized in that, The pushing assembly (8) includes a rectangular groove opened on the top of the sliding plate (75), the inner cavity of which is provided with a groove (81), and a pressure sensor (82) is fixedly installed at the bottom of the inner cavity of the groove (81); a PLC controller (85) is fixedly installed on the top of the extension plate (4), the PLC controller (85) is used to control the electric telescopic rod (83), the electric telescopic rod (83) is installed at the bottom of the connecting seat (2), and a pushing plate (84) is fixedly installed at the bottom of the electric telescopic rod (83).

3. The lightweight, high-speed response robotic arm device as described in claim 2, characterized in that, Each set of support structures also includes a limiting component (9), which includes a spiral rod (91) fixedly installed at the bottom of the groove (81), a rotating block (92) movably passing through the bottom of the inner cavity of the sliding plate (75), and the bottom end of the spiral rod (91) movably passing through the inner cavity of the rotating block (92). A rotating disk (93) is fixedly sleeved on the outer periphery of the rotating block (92), and a bent rod (94) movably passes through the top of the rotating disk (93) near one side. The bottom end of the bent rod (94) is slidably connected to the bottom of the inner cavity of the rectangular groove, and a side plate (95) is fixedly installed at the end of the bent rod (94). Several extrusion blocks (96) are provided on the other side of the side plate (95).

4. The lightweight, high-speed response robotic arm device as described in claim 3, characterized in that, Fixed telescopic rods (97) are fixedly installed at the bottom of the groove (81) near the four sides. The bottom end of the fixed telescopic rod (97) is fixedly connected to the bottom of the inner cavity of the rectangular groove. A fixed spring (98) is movably sleeved on the outer periphery of the fixed telescopic rod (97), and the two ends of the fixed spring (98) are fixedly connected to the bottom of the inner cavity of the groove (81) and the rectangular groove, respectively.

5. The lightweight, high-speed response robotic arm device as described in claim 3, characterized in that, The top of the rotating disk (93) is provided with an arc-shaped opening (931) near one side, and the top of the bent rod (94) moves through the inner cavity of the arc-shaped opening (931).

6. The lightweight, high-speed response robotic arm device as described in claim 3, characterized in that, Movable telescopic rods (961) are fixedly installed between the side plate (95) and each extrusion block (96). Movable springs (962) are movably sleeved on the outer periphery of the movable telescopic rods (961), and the two ends of the movable springs (962) are fixedly connected to the side plate (95) and the extrusion block (96) respectively.

7. The lightweight, high-speed response robotic arm device as described in claim 1, characterized in that, Several reset telescopic rods (711) are fixedly installed between the top of the movable plate (71) and the bottom of the extension plate (4). Each reset telescopic rod (711) is movably sleeved with a reset spring (712), and the two ends of the reset spring (712) are fixedly connected to the movable plate (71) and the extension plate (4) respectively.

8. The lightweight, high-speed response robotic arm device as described in claim 1, characterized in that, The bottom of the sliding plate (75) is fixedly installed with a dovetail block (751), and the top of the mounting base (5) is provided with a dovetail groove (752), and the dovetail block (751) is slidably connected to the inner cavity of the corresponding dovetail groove (752).

9. The lightweight, high-speed response robotic arm device as described in claim 1, characterized in that, Several connecting telescopic rods (51) are fixedly installed between the top of the mounting base (5) and the bottom of the extension plate (4). Connecting springs (52) are movably sleeved on the outer periphery of each connecting telescopic rod (51), and the two ends of the connecting springs (52) are fixedly connected to the extension plate (4) and the mounting base (5) respectively.

10. The lightweight, high-speed response robotic arm device according to any one of claims 1-9, characterized in that, The front side of the rotating gear (73) is rotatably connected to a connecting shaft (731), and a vertical plate (732) is fixedly installed at the end of the connecting shaft (731). The top of the vertical plate (732) is fixedly connected to the extension plate (4).

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