An adaptive mobile platform device based on an electromagnetic clutch and gas spring assistance

Abstract

This invention provides an adaptive mobile platform device based on an electromagnetic clutch and a gas spring, comprising a mobile platform and a fixed base plate. A bearing seat is fixed to the fixed base plate, and a ball screw is supported and mounted on the bearing seat. The drive shaft of the ball screw is connected to the output end of the electromagnetic clutch. The mobile platform is fixed to one end of the ball screw via a nut seat mounting plate and moves linearly along a slide rail. One end of the gas spring is fixed to a brake mounting base, and the other end is hinged to the mobile platform. The brake mounting base is positioned between the electromagnetic clutch and the bearing seat. This invention achieves rigid locking of the ball screw at any position through the electromagnetic clutch, thereby locking the mobile platform at any position. Combined with the gas spring, the mobile platform can automatically and controllably return to the starting position when external force is removed or a reset command is received, improving the positioning reliability, reset smoothness, and safety of the mobile platform device.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical transmission and automatic control technology, specifically relating to an adaptive mobile platform device based on an electromagnetic clutch and gas spring assistance. Background Technology

[0002] Existing linear motion platforms typically rely on servo motors or stepper motors for drive, using ball screws to move the platform linearly along guide rails to achieve high-precision positioning. However, in applications where the platform needs to remain stationary or fixed in any position, such as in detection devices, loading platforms, or automated assembly mechanisms, relying solely on motor brakes or system static friction is insufficient for reliable locking, easily leading to platform position drift.

[0003] In addition, traditional lead screw platforms often cannot automatically reset under external force or power failure, requiring additional motor drive or pneumatic mechanism configuration. Utility Model Content

[0004] The purpose of this invention is to provide an adaptive mobile platform device based on an electromagnetic clutch and a gas spring, so as to realize the function of locking the mobile platform at any position and automatic return, thereby improving the safety and reliability of the equipment.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an adaptive moving platform device based on an electromagnetic clutch and a gas spring, comprising a nut seat mounting plate, an electromagnetic clutch, a brake mounting base, a slide rail, a moving platform, a gas spring, a bearing seat, a fixed base plate, and a ball screw. The fixed base plate has a bearing seat fixed to it, and the ball screw is supported and mounted on the bearing seat. The drive shaft of the ball screw is connected to the output end of the electromagnetic clutch. The moving platform is fixed to one end of the ball screw via the nut seat mounting plate and moves linearly along the slide rail. One end of the gas spring is fixed to the brake mounting base, and the other end is hinged to the moving platform. The brake mounting base is positioned between the electromagnetic clutch and the bearing seat.

[0006] Furthermore, the electromagnetic clutch is a friction-type electromagnetic clutch, used to lock the ball screw at any position.

[0007] Furthermore, a shim is provided between the mobile platform and the fixed base plate to support the slide rail.

[0008] Furthermore, the gas spring is connected to the moving platform via a mounting flange.

[0009] Furthermore, the gas spring is a gas spring support rod.

[0010] Compared with the prior art, the beneficial effects of this utility model are: by using an electromagnetic clutch to achieve rigid locking of the ball screw at any position, the mobile platform can be locked at any position. Combined with the function of the gas spring in storing energy after compression and smoothly resetting when released, the mobile platform can automatically and controllably return to the starting position when the external force is removed or a reset command is received. This improves the positioning reliability, reset stability and safety of the mobile platform device, and is suitable for automated applications such as precision positioning, detection, loading and automatic assembly. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model; Figure 2 This is the state of the gas spring in the device of this utility model when compressed; Figure 3 This is the state of the device when the gas spring is pulled open; Figure 4 This is a schematic diagram of the gas spring structure in the device of this utility model; Reference numerals: 1-Nut seat mounting plate; 2-Electromagnetic clutch; 3-Brake mounting seat; 4-Slide rail; 5-Moving platform; 6-Elevating block; 7-Gas spring; 8-Bearing seat; 9-Fixed base plate; 10-Ball screw. Detailed Implementation

[0012] The preferred embodiments of the present invention will be further described below with reference to the accompanying drawings. The following embodiments are for illustrative purposes only and are not intended to limit the scope of the invention.

[0013] like Figure 1-4 As shown, an adaptive mobile platform device based on an electromagnetic clutch and gas spring assistance includes a nut seat mounting plate 1, an electromagnetic clutch 2, a brake mounting base 3, a slide rail 4, a mobile platform 5, a gas spring 7, a bearing seat 8, a fixed base plate 9, and a ball screw 10. The bearing seat 8 is fixed on the fixed base plate 9, and the ball screw 10 is supported and mounted on the bearing seat 8. The drive shaft of the ball screw 10 is connected to the output end of the electromagnetic clutch 2. The mobile platform 5 is fixed to one end of the ball screw 10 via the nut seat mounting plate 1 and moves linearly along the slide rail 4. One end of the gas spring 7 is fixed to the brake mounting base 3, and the other end is hinged to the mobile platform 5. The brake mounting base 3 is located between the electromagnetic clutch 2 and the bearing seat 8.

[0014] Specifically, the electromagnetic clutch 2 is a friction-type electromagnetic clutch used to lock the ball screw 10 at any position. A shim 6 is also provided between the moving platform 5 and the fixed base plate 9 to support the slide rail 4. The gas spring 7 is connected to the moving platform 5 through a mounting flange, and the gas spring is a gas spring support rod.

[0015] The mobile platform 5 is fixed to the nut of the ball screw 10 via the nut seat mounting plate 1 and guided by a slider on the slide rail 4. Both ends of the ball screw 10 are supported by bearing seats 8. One end of the ball screw 10 is connected to the output shaft of the electromagnetic clutch 2 via a coupling. The electromagnetic clutch 2 is controlled by the control unit. One end of the gas spring 7 is fixed to the brake mounting seat 3, and the other end is hinged to the mobile platform 5 via a mounting flange to provide tension along the direction of movement. The gas spring can be selected as a model with adjustable preload and damping adjustment, and an adjustable mounting flange is added at the connection to adjust the effective stroke and return tension of the gas spring.

[0016] In actual operation: the movement of the mobile platform: the control unit issues a movement command, first de-energizes the electromagnetic clutch 2, and at the same time controls the ball screw 10 to drive the motor to output torque. The ball screw 10 drives the nut to move the mobile platform 5 toward the target position. During the movement, the gas spring 7 is compressed and stores energy.

[0017] Locking of the mobile platform: When the mobile platform 5 reaches the target position, the control unit energizes the electromagnetic clutch 2 to engage. The electromagnetic clutch 2 is a friction-type electromagnetic clutch, which engages the friction plate to lock the ball screw 10 from rotating, and the mobile platform 5 is rigidly locked.

[0018] Automatic Reset: When a reset is required, the control unit releases the electromagnetic clutch 2 and releases the gas spring 7, allowing the gas spring 7 to extend smoothly through the damping structure under internal pressure and spring force, pulling the moving platform back to the starting position of its stroke. In an emergency, the control unit can immediately disconnect the power supply to the electromagnetic clutch 2, causing the friction plates to separate. Subsequently, the gas spring 7, under its damping action, slowly resets the moving platform 5, preventing sudden impact damage to the equipment or workpiece.

Claims

1. An adaptive moving platform device based on an electromagnetic clutch and a gas spring, comprising a nut seat mounting plate (1), an electromagnetic clutch (2), a brake mounting seat (3), a slide rail (4), a moving platform (5), a gas spring (7), a bearing seat (8), a fixed base plate (9), and a ball screw (10), characterized in that, A bearing seat (8) is fixed on the fixed base plate (9), and a ball screw (10) is supported and installed on the bearing seat (8). The transmission shaft of the ball screw (10) is connected to the output end of the electromagnetic clutch (2). The moving platform (5) is fixed to one end of the ball screw (10) through the nut seat mounting plate (1) and moves linearly along the slide rail (4). One end of the gas spring (7) is fixed on the brake mounting seat (3), and the other end is hinged to the moving platform (5). The brake mounting seat (3) is located between the electromagnetic clutch (2) and the bearing seat (8).

2. The self-adaptive mobile platform device based on electromagnetic clutch and gas spring assistance of claim 1, wherein, The electromagnetic clutch (2) is a friction electromagnetic clutch used to lock the ball screw (10) at any position.

3. The self-adaptive mobile platform device based on electromagnetic clutch and gas spring assistance of claim 1, wherein, A shim (6) is also provided between the mobile platform (5) and the fixed base plate (9) to support the slide rail (4).

4. The self-adaptive mobile platform device based on electromagnetic clutch and gas spring assistance of claim 1, wherein, The gas spring (7) is connected to the moving platform (5) via a mounting flange.

5. The self-adapting mobile platform device based on electromagnetic clutch and gas spring assistance of claim 1, wherein, The gas spring is a gas spring support rod.

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