A high-precision heavy-duty industrial robot

Abstract

The utility model discloses a kind of high-precision heavy-load industrial robots, it is related to industrial robot technical field, including mounting plate, the outside of mounting plate is slidably connected with moving seat, the mounting plate is driven moving seat up and down sliding by lifting mechanism, two second threaded sleeves are slidably connected in moving seat by pitch adjusting mechanism, the outside of each second threaded sleeve is rotatably connected with turntable by rotating mechanism, the utility model is when using, different forms workpieces are high-precision adaptive clamping by each device, lifting mechanism adjusts moving seat height, cooperation arm realizes micro distance alignment, rotating mechanism switches plane clamping plate and arc clamping plate, without manual replacement, pitch adjusting mechanism adjusts the distance between two components, combined with electric telescopic rod flexible drive, ensure stable clamping under heavy load, positioning accuracy reaches millimeter level, improve operation efficiency and flexibility.

Description

Technical Field

[0001] This utility model relates to the field of industrial robot technology, and in particular to a high-precision heavy-duty industrial robot. Background Technology

[0002] In the field of industrial automation, high-precision heavy-duty industrial robots are key equipment for the efficient handling and assembly of heavy workpieces. They are widely used in industries such as automobile manufacturing, heavy machinery, and metallurgy. As robots need to meet the dual requirements of "heavy load" and "high precision," they must be able to stably hold workpieces weighing several tons while ensuring millimeter-level positioning accuracy to meet the process requirements of precision assembly and docking. Furthermore, as the manufacturing industry's requirements for production efficiency and product quality increase, the shapes of workpieces are becoming increasingly diversified, including both planar workpieces (such as steel plates and square bases) and curved workpieces (such as pipes and cylindrical steel ingots). Existing heavy-duty robots mostly use a single gripping surface design for their gripping devices, which still require manual replacement of grippers to adapt to different workpiece shapes. This results in cumbersome operation and low switching efficiency. Moreover, frequent manual replacement of grippers can affect the connection of the gripping device, reducing its accuracy. This, to some extent, restricts the application flexibility and operational accuracy of heavy-duty robots in complex working conditions. In view of this, this application proposes a high-precision heavy-duty industrial robot. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-precision, heavy-duty industrial robot.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A high-precision heavy-duty industrial robot includes a mounting plate. A movable seat is slidably connected to the outer side of the mounting plate. The mounting plate drives the movable seat to slide up and down via a lifting mechanism. Two second threaded sleeves are symmetrically slidably connected inside the movable seat via a spacing adjustment mechanism. A turntable is rotatably connected to the outer side of each second threaded sleeve via a rotating mechanism. A fixing plate is fixedly installed on the outer center of the outer side of each turntable. Multiple electric telescopic rods are symmetrically installed on both outer sides of each fixing plate. The other ends of the multiple electric telescopic rods located on the same side are all mounted with a fixing frame. A flat clamping plate and an arc-shaped clamping plate are respectively installed on the outer side of every two corresponding fixing frames.

[0005] Preferably, the lifting mechanism includes two guide rails, which are symmetrically installed on the outside of the mounting plate. A threaded rod is rotatably connected in one of the guide rails, and a first guide rod is installed in the other guide rail. Two first threaded sleeves are symmetrically installed on the outside of the movable seat, one of which is threadedly connected to the threaded rod, and the other is slidably connected to the first guide rod.

[0006] Preferably, the spacing adjustment mechanism includes a double-ended screw, which is rotatably connected to the inner wall of the movable seat, and two second threaded sleeves are symmetrically threaded to the outside of the double-ended screw.

[0007] Preferably, each of the rotating mechanisms includes a fixed cylinder, and each fixed cylinder is fixedly installed on the outside of the corresponding second threaded sleeve, and a third motor is fixedly installed inside each fixed cylinder, and the output shaft of each third motor is coaxially connected to the corresponding turntable.

[0008] Preferably, a second motor is fixedly installed on the outer side of the movable seat, and the output shaft of the second motor is coaxially connected to the double-ended screw. A first motor is fixedly installed on the top surface of one of the guide rails, and the output shaft of the first motor is coaxially connected to the threaded rod. Each of the third motors, the first motor, and the second motor is a servo motor.

[0009] Preferably, a second guide rod is fixedly installed inside the movable seat, and each second threaded sleeve is slidably connected to the second guide rod.

[0010] This utility model has the following beneficial effects: This invention achieves high-precision clamping of workpieces of different shapes through a lifting mechanism, a rotating mechanism, a spacing adjustment mechanism, a fixed plate, an electric telescopic rod, an arc-shaped clamping plate, and a flat clamping plate. The lifting mechanism drives the moving seat to precisely adjust the height, and works with the robotic arm to achieve micro-alignment between the workpiece and the working surface. The rotating mechanism drives the turntable to switch between the flat clamping plate and the arc-shaped clamping plate, which can be adapted to flat or arc-shaped workpieces without manual replacement. The spacing adjustment mechanism adjusts the spacing between the two clamping components symmetrically through a double-headed screw, and combined with the flexible drive of the electric telescopic rod, it ensures stable clamping under heavy load and positioning accuracy down to the millimeter level, improving the operating efficiency and flexibility under complex working conditions. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a high-precision heavy-duty industrial robot proposed in this utility model; Figure 2 This is a schematic diagram of the lifting mechanism structure of a high-precision heavy-duty industrial robot proposed in this utility model. Figure 3 This is a schematic diagram of the second motor mounting structure for a high-precision heavy-duty industrial robot proposed in this utility model. Figure 4 This is a schematic diagram of the spacing adjustment mechanism for a high-precision heavy-duty industrial robot proposed in this utility model. Figure 5 This is a schematic diagram of the rotating mechanism structure of a high-precision heavy-duty industrial robot proposed in this utility model.

[0012] In the diagram: 1. Mounting plate; 2. Guide rail; 3. First motor; 4. Movable seat; 5. Turntable; 6. Fixing plate; 7. Electric telescopic rod; 8. Fixing frame; 9. Flat clamping plate; 10. Arc-shaped clamping plate; 11. Threaded rod; 12. First guide rod; 13. First threaded sleeve; 14. Second motor; 15. Double-ended screw; 16. Second guide rod; 17. First threaded sleeve; 18. Fixing cylinder; 19. Third motor. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0014] This utility model provides a technical solution: such as Figure 1-5 As shown, a high-precision heavy-duty industrial robot includes a mounting plate 1. A movable seat 4 is slidably connected to the outer side of the mounting plate 1. The mounting plate 1 drives the movable seat 4 to slide up and down through a lifting mechanism. Two second threaded sleeves 17 are symmetrically slidably connected inside the movable seat 4 through a spacing adjustment mechanism. A turntable 5 is rotatably connected to the outer side of each second threaded sleeve 17 through a rotating mechanism. A fixed plate 6 is fixedly installed in the middle of the outer side of each turntable 5. Multiple electric telescopic rods 7 are symmetrically installed on both outer sides of each fixed plate 6. The other end of the multiple electric telescopic rods 7 located on the same side is jointly installed with a fixed frame 8. A flat clamping plate 9 and an arc-shaped clamping plate 10 are respectively installed on the outer side of each pair of corresponding fixed frames 8. Mounting plate 1 serves as the load-bearing base, used to fix the device to one end of the robotic arm. The movable seat 4 is height-adjustable via a lifting mechanism, which works in conjunction with the adjustment of the robotic arm. After the robotic arm clamps the workpiece to the designated position, the distance between the workpiece clamped on the movable seat 4 and the working plate can be further adjusted via the lifting mechanism to achieve high-precision workpiece lowering. The spacing adjustment mechanism is used to adjust the spacing between the two clamping components to accommodate workpieces of different sizes. The rotating mechanism drives the turntable 5 to rotate, which can quickly switch between the flat clamping plate 9 and the arc-shaped clamping plate 10 to meet the clamping requirements of flat and arc-shaped workpieces. The electric telescopic rod 7 works in conjunction with the spacing adjustment mechanism to achieve clamping. Mounting plate 1 can be made of high-strength alloy material to improve its resistance to deformation and ensure structural stability under heavy loads.

[0015] Furthermore, the lifting mechanism includes two guide rails 2, which are symmetrically installed on the outside of the mounting plate 1. A threaded rod 11 is rotatably connected inside one of the guide rails 2, and a first guide rod 12 is installed inside the other guide rail 2. Two first threaded sleeves 13 are symmetrically installed on the outside of the movable seat 4, and one of the first threaded sleeves 13 is threadedly connected to the threaded rod 11, while the other first threaded sleeve 13 is slidably connected to the first guide rod 12. The first guide rod 12 limits the movable seat 4, allowing it to slide only up and down.

[0016] Furthermore, the spacing adjustment mechanism includes a double-ended screw 15, which is rotatably connected to the inner wall of the movable seat 4, and two second threaded sleeves 17 are symmetrically threaded to the outside of the double-ended screw 15.

[0017] Furthermore, each rotating mechanism includes a fixed cylinder 18, and each fixed cylinder 18 is fixedly installed on the outside of the corresponding second threaded sleeve 17. A third motor 19 is fixedly installed inside each fixed cylinder 18, and the output shaft of each third motor 19 is coaxially connected to the corresponding turntable 5.

[0018] Furthermore, a second motor 14 is fixedly installed on the outer side of the movable seat 4, and the output shaft of the second motor 14 is coaxially connected to the double-headed screw 15. A first motor 3 is fixedly installed on the top surface of one of the guide rails 2, and the output shaft of the first motor 3 is coaxially connected to the threaded rod 11. Each third motor 19, the first motor 3, and the second motor 14 are all servo motors. The drive turntable 5 rotates, enabling rapid switching between the flat clamping plate 9 and the arc-shaped clamping plate 10, eliminating the need for manual clamp replacement and improving work efficiency.

[0019] Furthermore, a second guide rod 16 is fixedly installed inside the movable seat 4, and each second threaded sleeve 17 is slidably connected to the second guide rod 16 to limit the second threaded sleeve 17 so that it cannot rotate and can only slide linearly.

[0020] This utility model provides a high-precision heavy-duty industrial robot. The specific working principle is as follows: First, the device is fixed to the end of the robot arm by the mounting plate 1. According to the position of the workpiece to be clamped, the robot arm drives the whole device to move to the approximate range. The first motor 3 is started, and its output shaft drives the threaded rod 11 to rotate, so that the moving seat 4 slides up and down along the guide rail 2 and the first guide rod 12 through the first threaded sleeve 13, and precisely adjusts the height of the clamping component to ensure that it is at the same level as the workpiece. Next, based on the workpiece size, the second motor 14 is started to drive the double-headed screw 15 to rotate, and the two second threaded sleeves 17 slide symmetrically along the second guide rod 16. The distance between the two turntables 5 is adjusted to match the width or diameter of the workpiece. If the workpiece is flat, such as a steel plate, the third motor 19 is controlled to drive the turntable 5 to rotate so that the flat clamping plate 9 faces the workpiece. If it is curved, such as a pipe, the curved clamping plate 10 is switched. Subsequently, the electric telescopic rod 7 extends synchronously, pushing the fixed frame 8 to cause the clamping plate to fit against the workpiece surface. Through the coordinated application of multiple rods, a uniform clamping force is applied to complete the workpiece gripping. After being moved to the target position, the position is first roughly adjusted by the robotic arm, and then the lifting mechanism is started to finely adjust the height of the moving seat 4 so that the workpiece is precisely aligned with the work plate. Finally, the electric telescopic rod 7 retracts to release the workpiece, completing the high-precision heavy-load operation.

[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-precision heavy-duty industrial robot, comprising a mounting plate (1), characterized in that, The mounting plate (1) is slidably connected to a movable seat (4) on its outer side. The mounting plate (1) drives the movable seat (4) to slide up and down through a lifting mechanism. Two second threaded sleeves (17) are symmetrically slidably connected inside the movable seat (4) through a spacing adjustment mechanism. Each second threaded sleeve (17) is rotatably connected to a turntable (5) through a rotating mechanism on its outer side. A fixed plate (6) is fixedly installed on the middle of the outer side of each turntable (5). Multiple electric telescopic rods (7) are symmetrically installed on both outer sides of each fixed plate (6). The other end of the multiple electric telescopic rods (7) located on the same side is jointly installed with a fixed frame (8). A flat clamping plate (9) and an arc-shaped clamping plate (10) are respectively installed on the outer side of each pair of corresponding fixed frames (8).

2. The high-precision heavy-duty industrial robot according to claim 1, characterized in that, The lifting mechanism includes two guide rails (2), which are symmetrically installed on the outside of the mounting plate (1). A threaded rod (11) is rotatably connected in one of the guide rails (2), and a first guide rod (12) is installed in the other guide rail (2). Two first threaded sleeves (13) are symmetrically installed on the outside of the moving seat (4). One of the first threaded sleeves (13) is threadedly connected to the threaded rod (11), and the other first threaded sleeve (13) is slidably connected to the first guide rod (12).

3. A high-precision heavy-duty industrial robot according to claim 2, characterized in that, The spacing adjustment mechanism includes a double-ended screw (15), which is rotatably connected to the inner wall of the movable seat (4), and two second threaded sleeves (17) are symmetrically threaded to the outside of the double-ended screw (15).

4. A high-precision heavy-duty industrial robot according to claim 3, characterized in that, Each of the rotating mechanisms includes a fixed cylinder (18), and each fixed cylinder (18) is fixedly installed on the outside of the corresponding second threaded sleeve (17), and a third motor (19) is fixedly installed inside each of the fixed cylinders (18), and the output shaft of each third motor (19) is coaxially connected to the corresponding turntable (5).

5. A high-precision heavy-duty industrial robot according to claim 4, characterized in that, The outer side of the movable seat (4) is fixedly installed with a second motor (14), and the output shaft of the second motor (14) is coaxially connected with the double-headed screw (15). The top surface of one of the guide rails (2) is fixedly installed with a first motor (3), and the output shaft of the first motor (3) is coaxially connected with the threaded rod (11). Each of the third motors (19), the first motor (3), and the second motor (14) are all servo motors.

6. A high-precision heavy-duty industrial robot according to claim 5, characterized in that, The movable seat (4) is fixedly installed with a second guide rod (16), and each second threaded sleeve (17) is slidably connected to the second guide rod (16).

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