Three-axis motion control platform for emergency braking
By using electromagnets and metal belts for emergency braking and modular design, the problem of slow braking response in emergency situations of traditional three-axis motion control platforms has been solved, achieving high-precision braking and improved equipment stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI DUOLI CONTROL ENG CO LTD
- Filing Date
- 2025-03-31
- Publication Date
- 2026-04-14
AI Technical Summary
Traditional three-axis motion control platforms have slow braking response in emergency situations, resulting in poor braking accuracy and easy damage to equipment.
The emergency braking method uses a non-contact electromagnet that attracts a metal strip. The controller quickly transmits a signal to energize the electromagnet and generate magnetic force, thus achieving rapid braking of the slider. The modular design facilitates the disassembly and replacement of components.
It achieves high-precision emergency braking, reduces positional deviation, improves equipment stability and service life, reduces maintenance costs, and shortens equipment downtime.
Smart Images

Figure CN224122919U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motion control platform technology, specifically a three-axis motion control platform for emergency braking. Background Technology
[0002] A three-axis motion control platform is a device capable of precise motion control along three mutually perpendicular coordinate axes. It is widely used in many fields to achieve various complex motion tasks. By precisely controlling the motion of the three axes, objects or tools on the platform can be moved according to predetermined trajectories and accuracy requirements, thereby meeting the needs of different application scenarios. In modern industrial production and scientific research, three-axis motion control platforms are widely used in various high-precision and high-speed motion scenarios.
[0003] Traditional three-axis motion control platforms, when facing emergencies, require multiple mechanical structures to respond to their emergency braking mechanisms. Due to the complexity of the structure, the braking response is slow, resulting in poor braking accuracy. Furthermore, the slow response speed can easily damage the equipment, making it difficult to guarantee that the platform can stop accurately at the predetermined position, and potentially leading to significant positional deviations. Utility Model Content
[0004] The purpose of this invention is to provide a three-axis motion control platform for emergency braking, in order to solve the problem that the traditional three-axis motion control platform mentioned in the background art requires multiple mechanical structures to respond in emergency situations, and the complex structure can easily lead to slow braking response and poor braking accuracy.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a three-axis motion control platform for emergency braking, comprising a longitudinal control frame configured as a strip-shaped frame structure, a transverse control frame disposed above the longitudinal control frame, and a second protective block slidably connected to the transverse control frame, and the second protective block being installed with a lifting slide rod, wherein the longitudinal control frame, the transverse control frame, and the lifting slide rod constitute the main basic structure of the three-axis motion control platform;
[0006] A ball screw is installed inside the longitudinal control frame, and the ball screw is threadedly slidably connected to the slider. The bottom end of the slider has two grooves, and an electromagnet is installed in the grooves of the slider. Protective blocks are provided on both sides of the grooves of the slider.
[0007] The transverse control frame has an auxiliary frame at each end, and the auxiliary frame is installed on the upper end of the slider. The transverse control frame has a ball screw installed inside, and the ball screw is slidably connected to the slider. The slider is slidably connected to the transverse control frame with a hole, and an electromagnet is installed inside the hole of the slider. The electromagnet is attracted to the metal strip, and the metal strip is installed on the surface of the transverse control frame.
[0008] By adopting the above technical solution, contactless rapid emergency braking can be achieved, avoiding wear between device structures.
[0009] Preferably, the surface of the longitudinal control frame is configured as a U-shaped structure, and a metal strip is installed inside the protruding surface of the U-shaped block of the longitudinal control frame.
[0010] Using the above technical solution, the longitudinal control frame provides restriction for the operation of the electromagnet by installing a metal strip on its surface.
[0011] Preferably, the upper end of the slider is provided with an opening, and the controller is installed in the opening of the slider, and the slider is slidably connected to the longitudinal control frame.
[0012] Using the above technical solution, a controller installed inside the slider provides a control signal to the electromagnet.
[0013] Preferably, the electromagnet one is attracted to the metal strip one, and the electromagnet one is electrically connected to the controller one, and the controller one and the controller two are connected by signal.
[0014] Using the above technical solution, rapid braking of the whole system is achieved by magnetic attraction between an electromagnet and a metal strip.
[0015] Preferably, the transverse control frame has the same structure as the longitudinal control frame, and there are two longitudinal control frames, which are arranged perpendicular to the transverse control frame.
[0016] By adopting the above technical solution, the structures of the horizontal control frame and the vertical control frame are interconnected, which facilitates the overall modularization and clear definition of the device.
[0017] Preferably, protective blocks are provided on both sides of the hole of the second slider, and the outer wall of the protective blocks abuts against the surface of the second slider. A controller is installed inside the second slider, and the controller is electrically connected to the electromagnet.
[0018] By adopting the above technical solution, as the electromagnet 2 inside the slider 2 is connected to the controller 2, the controller 2 can quickly control the electromagnet 2.
[0019] Preferably, the second surface of the slider is connected to the positioning frame, and the C-shaped frame of the positioning frame is installed with the lifting slide rod, and the working direction of the lifting slide rod is vertical.
[0020] By adopting the above technical solution, the positioning frame provides a stable installation structure for the lifting slide bar, which facilitates the lateral movement of the lifting slide bar.
[0021] Compared with the prior art, the beneficial effects of this utility model are: the three-axis motion control platform for emergency braking:
[0022] 1. In the emergency braking mechanism of this device, when an emergency occurs, controller one and controller two can quickly transmit signals to electromagnet one and electromagnet two, causing them to be energized and generate magnetic force, which attracts metal strip one and metal strip two respectively, quickly stopping the movement of slider one and slider two. Meanwhile, ball screw one and ball screw two in the longitudinal control frame and transverse control frame can accurately convert the rotational motion of the motor into linear motion. Combined with the strong and stable attraction force of the electromagnet during braking, the platform can be accurately stopped at the target position after braking, reducing position deviation and achieving high-precision stopping.
[0023] 2. In actual use, controller one and controller two are connected, enabling coordinated control of the three-axis motion and braking. During normal operation, it can precisely control the longitudinal, lateral, and vertical movements according to different operational requirements. In emergency braking, it can simultaneously trigger the braking devices of each axis to ensure that the platform stops moving synchronously. Due to the modular design of the device, the longitudinal control frame, lateral control frame, slider one, slider two, and other components are relatively independent. When a single component fails, it is easy to disassemble and replace it without the need for large-scale maintenance or adjustment of the entire platform. This can effectively shorten the downtime of the equipment and improve production efficiency.
[0024] 3. The longitudinal control frame in the device is set as a U-shaped structure, and two longitudinal control frames are set perpendicular to the transverse control frame. This structure enhances the overall stability of the platform, enabling it to withstand larger loads and external impacts during movement. Furthermore, the protective blocks on both sides of the groove of slider one and the protective blocks on both sides of the hole of slider two can protect key components such as electromagnets during braking, reduce wear and collision damage between components, extend the service life of the equipment, and reduce maintenance costs. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall external three-dimensional structure of this utility model;
[0026] Figure 2 This is a three-dimensional structural diagram of the longitudinal control frame and slider of this utility model.
[0027] Figure 3 This is a three-dimensional structural diagram of the horizontal control frame and slider II of this utility model.
[0028] Figure 4This is a three-dimensional structural diagram of the installation of slider 1, electromagnet 1, and controller 1 of this utility model;
[0029] Figure 5 This is a three-dimensional structural diagram of the installation of slider two and electromagnet two in this utility model;
[0030] Figure 6 This is a three-dimensional structural diagram showing the installation positions of the slider 2, electromagnet 2, and positioning frame of this utility model.
[0031] In the diagram: 1. Longitudinal control frame; 2. Ball screw one; 3. Metal strip one; 4. Slider one; 5. Protective block one; 6. Electromagnet one; 7. Controller one; 8. Auxiliary frame; 9. Lateral control frame; 10. Ball screw two; 11. Metal strip two; 12. Slider two; 13. Protective block two; 14. Electromagnet two; 15. Controller two; 16. Positioning frame; 17. Lifting slide bar. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Please see Figures 1-6 This utility model provides a technical solution: a three-axis motion control platform for emergency braking, including a longitudinal control frame 1, a ball screw 2, a metal belt 3, a slider 4, a protective block 5, an electromagnet 6, a controller 7, an auxiliary frame 8, a transverse control frame 9, a ball screw 10, a metal belt 11, a slider 12, a protective block 13, an electromagnet 14, a controller 15, a positioning frame 16, and a lifting slide bar 17;
[0034] The longitudinal control frame 1 is configured as a strip frame structure. A transverse control frame 9 is set above the longitudinal control frame 1. A protective block 13 is slidably connected to the transverse control frame 9. The protective block 13 is also installed with the lifting slide rod 17. The longitudinal control frame 1, the transverse control frame 9 and the lifting slide rod 17 constitute the main basic structure of the three-axis motion control platform. The surface of the longitudinal control frame 1 is configured as a U-shaped structure. A metal strip 3 is installed in the protruding surface of the U-shaped block of the longitudinal control frame 1.
[0035] A ball screw 2 is installed inside the longitudinal control frame 1, and the ball screw 2 is threadedly slidably connected to the slider 4. The bottom end of the slider 4 is provided with two grooves, and an electromagnet 6 is installed in the grooves of the slider 4. Protective blocks 5 are provided on both sides of the grooves of the slider 4. The upper end of the slider 4 is provided with an opening, and a controller 7 is installed in the opening of the slider 4. The slider 4 is slidably connected to the longitudinal control frame 1. The electromagnet 6 is attracted to the metal strip 3, and the electromagnet 6 is electrically connected to the controller 7. The controller 7 is signal-connected to the controller 15.
[0036] Referring to the attached diagrams in the instruction manual Figures 1-6 As shown, when in use, the components in the power system and communication system connection device, after the power system provides power to the ball screw 2 in the longitudinal control frame 1 to make it rotate, since the slider 4 is threadedly connected to the ball screw 2, under the action of thread transmission, the slider 4 slides along the track of the longitudinal control frame 1, realizing the movement of the platform in the longitudinal direction. During this period, the electromagnet 6 installed in the groove at the bottom of the slider 4 is in a de-energized state and will not hinder the movement of the slider 4.
[0037] As slider 4 moves longitudinally, the auxiliary frame 8 installed on the upper end of slider 4 also moves, thereby causing the horizontal control frame 9 to change its position in the longitudinal direction. At the same time, the ball screw 10 inside the horizontal control frame 9 rotates under the action of the corresponding electric drive, causing slider 12, which is slidably connected to ball screw 10, to slide along the horizontal control frame 9, realizing the movement of the platform in the horizontal direction. During this period, the electromagnet 14 inside the hole of slider 12 is also in a de-energized state, and will not interfere with the normal sliding of slider 12.
[0038] Once the longitudinal and lateral positions are determined, the lifting slide rod 17, which is connected to the surface of slider 12 via the positioning frame 16, begins to work. The lifting slide rod 17 moves along the vertical direction, thereby adjusting the position of the platform in the vertical direction. Thus, through the coordinated movement in the longitudinal, lateral, and vertical directions, the platform and its mounted equipment or components, which are installed at the output end of the lifting slide rod 17, are moved to the target position. In use, the direction of the lifting slide rod 17 can be adjusted as needed to adjust the installation position. The output end of the lifting slide rod 17 is connected to the platform to drive the platform to move.
[0039] An auxiliary frame 8 is provided at each end of the transverse control frame 9, and the auxiliary frame 8 is installed on the upper end of the slider 4. A ball screw 10 is installed inside the transverse control frame 9, and the ball screw 10 is slidably connected to the slider 12. A hole is provided at the sliding connection between the slider 12 and the transverse control frame 9, and an electromagnet 14 is installed in the hole of the slider 12. The electromagnet 14 is attracted to the metal strip 11, and the metal strip 11 is installed on the surface of the transverse control frame 9. The transverse control frame 9 has the same structure as the longitudinal control frame 1. There are two longitudinal control frames 1, and the longitudinal control frames 1 and the transverse control frames 9 are arranged perpendicularly. Protective blocks 2 13 are provided on both sides of the hole of slider 2 12, and the outer wall of the protective blocks 2 13 abuts against the surface of slider 2 12. Controller 2 15 is installed inside slider 2 12, and controller 2 15 is electrically connected to electromagnet 2 14. The surface of slider 2 12 is connected to positioning frame 16, and the C-shaped frame of positioning frame 16 is installed with lifting slide rod 17, and the working direction of lifting slide rod 17 is vertical.
[0040] Referring to the attached diagrams in the instruction manual Figures 1-6 As shown, in an emergency, the communication system needs to issue an emergency stop signal. This signal is first transmitted to controller 7, which is installed in the opening at the upper end of slider 4. After receiving the signal, controller 7 quickly sends an electrical signal to electromagnet 6, energizing it. The energized electromagnet 6 generates a strong magnetic force, which attracts the metal strip 3 installed in the U-shaped protrusion of the longitudinal control frame 1. The strong attraction force quickly hinders the movement of slider 4, stopping it in a short time, thus achieving emergency braking of the longitudinal axis. At the same time, the protective blocks 5 on both sides of the groove of slider 4 can protect electromagnet 6 during braking, reducing the damage to electromagnet 6 caused by braking impact. Furthermore, while issuing the longitudinal stop command, controller 7 also transmits the signal to controller 2 15, which is connected to the signal. After receiving the signal, controller 15 sends an electrical signal to electromagnet 14 inside the hole of slider 12, energizing it. At this time, electromagnet 14 generates magnetic force after being energized, attracting the metal strip 11 installed on the surface of the transverse control frame 9. The resistance generated by the magnetic force prevents slider 12 from continuing to slide on the transverse control frame 9, thereby achieving emergency braking of the transverse axis. During this period, the protective blocks 13 on both sides of the hole of slider 12 abut against the surface of slider 12, which can protect electromagnet 14 and related structures during braking, reducing the risk of wear and damage during braking. With the braking of the longitudinal axis and the transverse axis, slider 12 stops moving, and the positioning frame 16 and the lifting slide rod 17 connected to slider 12 lose power. Thus, the entire three-axis motion control platform stops moving in all three directions, achieving the purpose of emergency stopping.
[0041] Working principle: When using this emergency stop three-axis motion control platform, the longitudinal control frame 1 drives the transverse control frame 9 to move longitudinally through the sliding of ball screw 12 and slider 14. Inside the transverse control frame 9, the positioning frame 16 moves laterally through ball screw 210 and slider 212. The positioning frame 16 provides an installation position for the lifting slide 17, and the lifting slide 17 provides vertical movement, thus forming a precise positioning of three axes in coordination.
[0042] When the emergency stop signal is triggered, controller 7 receives the instruction and sends an electrical signal to electromagnet 6. Electromagnet 6 is energized and generates a strong magnetic force, attracting the metal strip 3 on the surface of the longitudinal control frame 1. The magnetic force quickly hinders the movement of slider 4, realizing emergency braking of the longitudinal axis. Protective block 5 protects electromagnet 6, preventing impact damage to components during braking. Furthermore, controller 7 transmits the signal to controller 15, which drives electromagnet 14 to be energized, attracting the metal strip 11 on the surface of the transverse control frame 9. The magnetic force prevents slider 12 from sliding on the transverse control frame 9, completing the transverse axis braking. Protective block 13 abuts against the surface of slider 12, protecting electromagnet 14 and the sliding structure. With the longitudinal and transverse axes braking, the lifting slide bar 17 on the positioning frame 16 loses its power of movement. Finally, all three axes stop moving, realizing emergency stop, ensuring the safety of equipment and personnel, and increasing the overall practicality.
[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A three-axis motion control platform for emergency braking, comprising: The longitudinal control frame (1) is configured as a strip frame structure. A transverse control frame (9) is provided above the longitudinal control frame (1). The transverse control frame (9) is slidably connected to a second protective block (13). The second protective block (13) is installed with a lifting slide rod (17). The longitudinal control frame (1), the transverse control frame (9) and the lifting slide rod (17) constitute the main basic structure of the three-axis motion control platform. The feature is that: a ball screw (2) is installed in the longitudinal control frame (1), and the ball screw (2) is threadedly connected to the slider (4). The bottom end of the slider (4) is provided with two grooves, and an electromagnet (6) is installed in the groove of the slider (4). Protective blocks (5) are provided on both sides of the groove of the slider (4). The transverse control frame (9) is provided with an auxiliary frame (8) at each end, and the auxiliary frame (8) is installed on the upper end of the slider (4). The transverse control frame (9) is equipped with a ball screw (10), and the ball screw (10) is slidably connected to the slider (12). The slider (12) is slidably connected to the transverse control frame (9) with a hole, and an electromagnet (14) is installed in the hole of the slider (12). The electromagnet (14) is attracted to the metal strip (11), and the metal strip (11) is installed on the surface of the transverse control frame (9).
2. The three-axis motion control platform for emergency braking according to claim 1, characterized in that: The surface of the longitudinal control frame (1) is configured as a U-shaped structure, and a metal strip (3) is installed in the protruding surface of the U-shaped block of the longitudinal control frame (1).
3. The three-axis motion control platform for emergency braking according to claim 1, characterized in that: The upper end of the slider (4) is provided with an opening, and the controller (7) is installed in the opening of the slider (4), and the slider (4) is slidably connected to the longitudinal control frame (1).
4. The three-axis motion control platform for emergency braking according to claim 1, characterized in that: The electromagnet one (6) is attracted to the metal strip one (3), and the electromagnet one (6) is electrically connected to the controller one (7), and the controller one (7) is connected to the controller two (15).
5. The three-axis motion control platform for emergency braking according to claim 1, characterized in that: The transverse control frame (9) has the same structure as the longitudinal control frame (1), and there are two longitudinal control frames (1), and the longitudinal control frames (1) and the transverse control frame (9) are arranged in a perpendicular direction.
6. The three-axis motion control platform for emergency braking according to claim 1, characterized in that: The two sides of the hole of the slider two (12) are provided with protective blocks two (13), and the outer wall of the protective block two (13) abuts against the surface of the slider two (12). The slider two (12) is equipped with controller two (15), and controller two (15) is electrically connected to electromagnet two (14).
7. The three-axis motion control platform for emergency braking according to claim 1, characterized in that: The surface of the second slider (12) is connected to the positioning frame (16), and the C-shaped frame of the positioning frame (16) is installed with the lifting slide rod (17), and the working direction of the lifting slide rod (17) is vertical.