Robot protective door with limiting structure

Abstract

The utility model relates to the field of robot protective doors, in particular to a robot protective door with a limiting structure, which comprises a robot protective door frame, a main body for forming the robot protective door, a rolling frame and a servo motor, and the output end of the servo motor is rotationally connected with a rolling rotating drum, and a flexible roller shutter is fixedly installed outside the rolling rotating drum. The robot protective door is provided with the driving controller, the external connecting wire, the infrared sensing grating, the limiting block, the telescopic air cylinder and the falling resistance block, when the robot protective door is used, the infrared sensing grating located outside the robot protective door frame can sense an object or a robot penetrating through the robot protective door frame, and when the object or the robot exists, the robot can be driven by the telescopic air cylinder. And the infrared sensing grating transmits the data to the driving controller, so that the flexible roller shutter which is put down at present is stopped, and the flexible roller shutter is prevented from touching an object or a robot below.

Description

Technical Field

[0001] This utility model relates to the field of robot protective doors, specifically to a robot protective door with a limiting structure. Background Technology

[0002] Robot safety doors are safety doors specifically designed for robot work areas to protect robots, equipment, and personnel from potential hazards. They are typically installed in robot rooms, welding rooms, and conveyor belt passages to facilitate the rapid entry and exit of materials while ensuring the safety of personnel and goods. These doors, through precise control and sensing systems, enable efficient automated operation and work seamlessly with robots and their associated equipment.

[0003] Existing robot safety gates, being located outside the robot, often lack limiting structures. If the robot arm passes through the gate frame, the curtain may unexpectedly descend, causing obstruction or injury. This significantly increases safety hazards in the robot's work area. Furthermore, robot safety gates without limiting structures require more manual intervention and control to mitigate potential safety risks. This reduces the automation level of the robot's work area and increases operating costs. Over the long term, this will further increase safety hazards and decrease system stability.

[0004] Therefore, it is necessary to invent a robot protective door with a limiting structure to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a robot safety door with a limiting structure. This structure, achieved through a drive controller, external wiring, an infrared sensor grating, a limiting block, a telescopic cylinder, and a stop block, effectively prevents the door curtain from accidentally descending when the robot arm passes through the door frame. This avoids injury to the robot arm or personnel caused by the curtain's descent, improving the safety of the robot's working area. Furthermore, this design provides dual protection: even if the infrared sensor grating fails, the telescopic cylinder and stop block can extend in time to prevent the curtain from descending, enhancing the system's stability and reliability. This design, through intelligent control and sensing, achieves automatic opening, closing, and limiting of the robot safety door. The improved control enhances the automation level of the robot's work area and reduces the need for human intervention. This addresses the issue in existing robot safety doors where, due to the door being located outside the robot, the lack of a limiting structure allows the robotic arm to pass through the door frame, causing the door curtain to unexpectedly descend and obstruct or injure the robot. This significantly increases safety hazards in the robot's work area. Furthermore, robot safety doors without limiting structures require more human intervention and control to mitigate potential safety risks, reducing the automation level of the robot's work area and increasing operating costs. Over the long term, this can also lead to increased safety hazards and decreased system stability.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a robot protective door with a limiting structure, including a robot protective door frame, which forms the main body of the robot protective door;

[0007] A winding frame is installed above the robot protective door frame for externally fixed installation of a servo motor. The output end of the servo motor is rotatably connected to a winding drum. A flexible roller shutter is fixedly installed on the outside of the winding drum. Sliding grooves are opened on both sides of the inside of the robot protective door frame. A sliding curtain head is slidably connected inside the sliding groove. A sliding curtain head is fixedly connected to one side of the outside of the flexible roller shutter. A pull-down head is fixedly installed on the other side of the outside of the flexible roller shutter.

[0008] A placement rack, positioned above the winding rack, is used to connect and install a drive controller. An external wiring is fixedly connected to the external side of the drive controller. An infrared sensing grating is fixedly installed inside the robot protective door frame. A limit block is fixedly installed outside the sliding curtain. A telescopic cylinder is fixedly installed inside the robot protective door frame, and a stop block is fixedly installed at the front end of the telescopic cylinder.

[0009] Preferably, the flexible roller blind is slidably connected to the robot protective door frame, and the flexible roller blind is fixedly connected to the sliding curtain head.

[0010] Preferably, a mounting plate is fixedly installed on the outside of the robot protective door frame, and a positioning bolt passes through the outside of the mounting plate.

[0011] Preferably, the robot protective door frame is provided with an electric slide rail on the outside, an electric sliding sleeve is slidably connected to the outside of the electric slide rail, and a push rod is fixedly installed on the outside of the electric sliding sleeve.

[0012] Preferably, the number of infrared sensing gratings is set to four, and the four infrared sensing gratings are distributed at equal intervals on the robot protective door frame.

[0013] Preferably, the drag block is movably connected to the robot protective door frame, and the telescopic cylinder is symmetrically arranged with respect to the central axis of the robot protective door frame.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] 1. This utility model includes a drive controller, external wiring, an infrared sensing grating, a limit block, a telescopic cylinder, and a stop block. When using this robot safety gate, the infrared sensing grating outside the robot safety gate frame can sense objects or robots passing through the frame. When an object or robot is present, the infrared sensing grating transmits the signal to the drive controller, which stops the currently lowering flexible roller shutter to prevent it from touching the object or robot below. Simultaneously, the telescopic cylinders on both sides drive the stop block to extend towards the center. The stop block abuts against the limit block outside the sliding curtain head, supporting the sliding curtain head and the flexible roller shutter to form a limiting structure, preventing the flexible roller shutter from touching the object or robot below. The roller shutter continued to descend unexpectedly. This design gives the robot safety door a limiting structure, which can effectively prevent the curtain from falling unexpectedly when the robot arm passes through the door frame. This avoids injury to the robot arm or personnel caused by the curtain falling, and improves the safety of the robot's working area. Moreover, this design provides dual protection. Even if the infrared sensor grating fails, the telescopic cylinder and the blocking block can extend in time to stop the curtain from falling. This enhances the stability and reliability of the system. Through intelligent control and sensing, this design realizes the automatic opening and closing and limit control of the robot safety door, improves the automation level of the robot's working area, and reduces the need for manual intervention.

[0016] 2. This utility model is equipped with a servo motor, a winding drum, a flexible roller shutter, a sliding groove, a sliding curtain head, a pull-down head, an electric slide rail, an electric sliding sleeve, and a push rod. When using this robot safety door, the servo motor drives the winding drum to wind up the flexible roller shutter to complete the opening operation. However, when the flexible roller shutter is relaxed and the robot safety door is closed, the closing of the robot safety door relying solely on gravity is unstable. The electric slide rail and electric sliding sleeve can drive the push rod downwards, and the push rod abuts against the pull-down head, thereby stably assisting the flexible roller shutter in relaxing. This ensures that the door descends smoothly and at a uniform speed. This design improves the stability of the robot safety door and reduces the potential risks to equipment and personnel caused by door shaking or jamming. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the flexible roller blind structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the push rod structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the infrared sensing grating structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the resistance reduction block structure of this utility model;

[0023] Figure 6 This is the system control flowchart of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Robot protective door frame; 2. Rewinding frame; 3. Servo motor; 4. Rewinding drum; 5. Flexible roller blind; 6. Sliding groove; 7. Sliding curtain head; 8. Mounting plate; 9. Positioning bolt; 10. Pull-down head; 11. Electric slide rail; 12. Electric sliding sleeve; 13. Push rod; 14. Placement rack; 15. Drive controller; 16. External wiring; 17. Infrared sensor grating; 18. Limit block; 19. Telescopic cylinder; 20. Drag block. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] This utility model provides, for example Figure 1-6 The robot protective door shown includes a robot protective door frame 1, which forms the main body of the robot protective door;

[0028] A winding frame 2 is set above the robot protective door frame 1 and is used to fix the servo motor 3 externally. The output end of the servo motor 3 is rotatably connected to the winding drum 4. A flexible roller shutter 5 is fixedly installed on the outside of the winding drum 4. Sliding grooves 6 are opened on both sides inside the robot protective door frame 1. A sliding curtain head 7 is slidably connected inside the sliding groove 6. A sliding curtain head 7 is fixedly connected to one side of the flexible roller shutter 5. A pull-down head 10 is fixedly installed on the other side of the flexible roller shutter 5.

[0029] A placement rack 14, positioned above the retractor 2, is used to connect and install a drive controller 15. An external wiring 16 is fixedly connected to the drive controller 15. An infrared sensor grating 17 is fixedly installed inside the robot protective door frame 1. A limit block 18 is fixedly installed outside the sliding curtain 7. A telescopic cylinder 19 is fixedly installed inside the robot protective door frame 1. A stop block 20 is fixedly installed at the front end of the telescopic cylinder 19. The infrared sensor grating 17 outside the robot protective door frame 1 can sense objects or robots passing through the robot protective door frame 1. When an object or robot is present, the infrared sensor grating 17 transmits the signal to the drive controller 15, which stops the currently lowering flexible roller blind 5 to prevent it from touching the object or robot below. At the same time, the telescopic cylinders 19 on both sides will drive the stop block 20 to extend towards the middle. The stop block 20 abuts against the limit block 18 outside the sliding curtain 7, supporting the sliding curtain 7 and the flexible roller blind 5 to form a limiting structure, preventing the flexible roller blind 5 from continuing to descend due to accident.

[0030] like Figure 1 , Figure 2 and Figure 3As shown, the flexible roller blind 5 is slidably connected to the robot protective door frame 1, and the flexible roller blind 5 is fixedly connected to the sliding curtain head 7. The flexible roller blind 5 slides up and down inside the robot protective door frame 1 through the sliding curtain head 7, which facilitates the opening and closing operation of the flexible roller blind 5. An installation plate 8 is fixedly installed on the outside of the robot protective door frame 1, and a positioning bolt 9 passes through the outside of the installation plate 8. The installation plate 8 and the positioning bolt 9 facilitate the installation and use of the robot protective door in the robot operating area. An electric slide rail 11 is provided on the outside of the robot protective door frame 1, and an electric sliding sleeve 12 is slidably connected to the outside of the electric slide rail 11. A push rod 13 is fixedly installed on the outside of the electric sliding sleeve 12, so that the electric slide rail 11 and the electric sliding sleeve 12 drive the push rod 13 downward. The push rod 13 abuts against the pull head 10, thereby stably assisting the flexible roller blind 5 to relax, which can ensure that the door descends smoothly and at a uniform speed.

[0031] like Figure 1 , Figure 4 , Figure 5 and Figure 6 As shown, the number of infrared sensing gratings 17 is set to four. The four infrared sensing gratings 17 are evenly distributed on the robot protective door frame 1. The infrared sensing gratings 17 located outside the robot protective door frame 1 can sense objects or robots passing through the robot protective door frame 1. When there is an object or robot, the infrared sensing gratings 17 transmit the information to the drive controller 15. The blocking block 20 is movably connected to the robot protective door frame 1. The telescopic cylinder 19 is symmetrically arranged with respect to the central axis of the robot protective door frame 1. Even if the infrared sensing gratings 17 fail, the telescopic cylinder 19 and the blocking block 20 can extend in time to block the door curtain from falling, which enhances the stability and reliability of the system.

[0032] The working principle of this utility model is as follows: First, connect the external power supply. Then, install the robot safety door in the robot's operating area using the mounting plate 8 and positioning bolts 9. Next, turn on the servo motor 3 to drive the winding drum 4 to rotate. As the winding drum 4 rotates, it drives the flexible roller shutter 5 to roll up, thus completing the opening operation of the robot safety door. The robot inside the safety door can then start and be used normally. To close the robot safety door, the infrared sensor grating 17 located outside the robot safety door frame 1 can sense... When an object or robot passes through the robot safety gate frame 1, the infrared sensor grating 17 transmits a signal to the drive controller 15, which stops the currently lowering flexible roller shutter 5 to prevent it from touching the object or robot below. Subsequently, the telescopic cylinders 19 on both sides drive the blocking blocks 20 to extend towards the center. The blocking blocks 20 abut against the limiting block 18 outside the sliding curtain head 7, supporting the sliding curtain head 7 and the flexible roller shutter 5 to form a limiting structure, preventing the flexible roller shutter 5 from continuing to descend due to accident. This design makes the robot safety gate... Equipped with a limiting structure, the door curtain can be effectively prevented from falling accidentally when the robotic arm passes through the door frame, thus avoiding injury to the robotic arm or personnel caused by the falling door curtain and improving the safety of the robot's working area. If there are no objects or robots on the robot protective door frame 1, the robot protective door can be closed normally by the release of the flexible roller shutter 5. However, the robot protective door may be unstable when closing by gravity alone. The electric slide rail 11 and electric sliding sleeve 12 can drive the push rod 13 downward. The push rod 13 abuts against the pull head 10, thus stably assisting the release of the flexible roller shutter 5. This ensures that the door descends smoothly and at a uniform speed. This design improves the stability of the robot protective door and reduces the potential risks to equipment and personnel caused by door shaking or jamming. Finally, after completing all the installation and use of the robot protective door according to the above operations, turn off the switch of the servo motor 3, the switch of the telescopic cylinder 19, and the switch of the electric slide rail 11. If it is not used for a long time, simply disconnect the external power supply. This completes the use of the robot protective door with the limiting structure.

[0033] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A robot protective gate with a limiting structure, characterized in that: include Robot protective door frame (1), used to form the main body of the robot protective door; A winding rack (2) is set above the robot protective door frame (1) for externally fixed installation of a servo motor (3), and the output end of the servo motor (3) is rotatably connected to a winding drum (4). A flexible roller blind (5) is fixedly installed on the outside of the winding drum (4). Sliding grooves (6) are opened on both sides inside the robot protective door frame (1). A sliding curtain head (7) is slidably connected inside the sliding groove (6). A sliding curtain head (7) is fixedly connected on one side outside the flexible roller blind (5). A pull-down head (10) is fixedly installed on the other side outside the flexible roller blind (5). A placement rack (14) is set above the winding rack (2) for connecting and installing a drive controller (15), and an external wiring wire (16) is fixedly connected to the outside of the drive controller (15). An infrared sensing grating (17) is fixedly installed inside the robot protective door frame (1). A limit block (18) is fixedly installed outside the sliding curtain (7). A telescopic cylinder (19) is fixedly installed inside the robot protective door frame (1), and a stop block (20) is fixedly installed at the front end of the telescopic cylinder (19).

2. A robot protective door with a limiting structure according to claim 1, characterized in that: The flexible roller blind (5) is slidably connected to the robot protective door frame (1), and the flexible roller blind (5) is fixedly connected to the sliding curtain head (7).

3. A robot protective gate with a limiting structure according to claim 1, characterized in that: The robot protective door frame (1) is fixedly installed with an installation plate (8), and a positioning bolt (9) passes through the outside of the installation plate (8).

4. A robot protective door with a limiting structure according to claim 1, characterized in that: The robot protective door frame (1) is provided with an electric slide rail (11) on the outside, and an electric slide sleeve (12) is slidably connected to the outside of the electric slide rail (11). A push rod (13) is fixedly installed on the outside of the electric slide sleeve (12).

5. A robot protective door with a limiting structure according to claim 1, characterized in that: The number of infrared sensing gratings (17) is set to four, and the four infrared sensing gratings (17) are distributed at equal intervals on the robot protective door frame (1).

6. A robot protective door with a limiting structure according to claim 1, characterized in that: The resistance block (20) is movably connected to the robot protective door frame (1), and the telescopic cylinder (19) is symmetrically arranged with respect to the central axis of the robot protective door frame (1).

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