A locking mechanism based on a stepper motor and linear motion

Abstract

The utility model belongs to the technical field of step motor locking mechanism, especially, relates to a locking mechanism based on step motor and linear motion to solve the technical problem that there is no way to manually control the limiting locking of the external structure of the automatic marching fixer, including power component, drive controller, linear motion executing mechanism and connecting seat, the power component is connected with drive controller, power component is connected with linear motion executing mechanism, the connecting seat is installed with power component, drive controller, linear motion executing mechanism simultaneously, the output shaft of step motor tail part and hand screw wheel constitute the kinetic energy input when manual control, the left screw of hand screw wheel is manual closing state, the right screw of hand screw wheel is manual opening state, and manual control realizes the limiting locking of the external structure of the automatic marching fixer.

Description

Technical Field

[0001] This utility model belongs to the technical field of stepper motor locking mechanism, and particularly relates to a locking mechanism based on a stepper motor and linear motion. Background Technology

[0002] Patent application CN202311723089.X discloses a travel-adjustable sealing and locking mechanism. The locking mechanism includes a housing, a motor, a transmission device, a travel adjustment device, a locking pin, and a sealing device. The sealing device is installed at the head of the housing. The motor provides power input to the locking mechanism, and the transmission device transmits the power input to the locking pin, enabling linear movement of the locking pin. The travel adjustment device is located on the side and above the locking pin and includes a fixed bracket, an adjustable bracket, a limit switch, and an adjustable trigger block. When the adjustable trigger block presses against the roller of the limit switch, the limit switch is triggered. The extension length of the locking pin is adjusted by adjusting the installation position of the adjustable bracket and / or the adjustable trigger block along the axial direction of the locking pin. The sealing device encloses the movement space of the locking pin. However, the drawback of this technical solution is that it is impossible to manually control the automatic travel arrester to limit and lock the external structure. Summary of the Invention

[0003] The purpose of this invention is to provide a locking mechanism based on a stepper motor and linear motion to solve the technical problem of not being able to manually control and achieve automated movement fixation of external structures.

[0004] To achieve the above objectives, the specific technical solution of this utility model for a locking mechanism based on a stepper motor and linear motion is as follows: A locking mechanism based on a stepper motor and linear motion includes a power component, a drive controller, a linear motion actuator, and a connecting base. The power component is connected to the drive controller and the linear motion actuator. The connecting base is simultaneously equipped with the power component, the drive controller, and the linear motion actuator.

[0005] Furthermore, the drive controller includes a control box, a sensor, a sensing arm, and an MCU. The control box is fixedly mounted on the connector, and the sensor, the sensing arm, and the MCU are installed inside the control box. The sensor and the MCU are connected for communication.

[0006] Furthermore, an O-ring is provided inside the control box.

[0007] Furthermore, the power component includes a stepper motor, a piston base, a motor rear cover plate, and a handwheel. The stepper motor is fixedly mounted on the connecting seat. The stepper motor is a dual-output shaft motor, with one output shaft being a custom lead screw. The piston base and the stepper motor are connected via a lead screw thread. The piston base is connected to a linear motion actuator. The motor rear cover plate is mounted on the stepper motor, and the handwheel is fixedly mounted on one end of the dual output shaft of the stepper motor.

[0008] Furthermore, the linear motion actuator includes a piston rod, a front cover plate, a bushing, a sleeve, and a follower arm. A sleeve is fixedly installed on the connecting seat, a piston rod is slidably installed inside the sleeve, a bushing is fixedly installed on the sleeve, a front cover plate is fixedly installed on the bushing, and a piston base is fixedly connected to the piston rod.

[0009] Furthermore, a sealing gasket is provided between the connecting seat and the front cover plate.

[0010] Furthermore, the other end of the stepper motor's dual output shaft is threaded into the piston rod.

[0011] Furthermore, an oil plug seal is provided between the connecting seat and the sleeve.

[0012] The advantages of this utility model are: This invention utilizes a piston rod for limiting and locking external moving structures. A stepper motor drives the piston rod to perform unidirectional reciprocating motion. When the piston rod moves forward to limit and lock the external structure, the moving arm drives the sensing arm to move forward. Upon receiving the proximity signal from the sensing arm, the sensor feeds the data back to the MCU, which issues a corresponding stop command. The stepper motor then stops. The MCU also receives and processes signals from external devices. The stepper motor is a dual-axis stepper motor used to provide kinetic energy in the automated marching restraint system. The core component provides the necessary kinetic energy for automatic control. The forward or reverse rotation of the stepper motor rotates the front lead screw, driving the piston base forward or backward, thus achieving the limit locking of the automated marching restraint against the external structure. The lead screw thread of the stepper motor has a lead of 5.08mm, and 2.96 rotations of the stepper motor are sufficient to achieve a lead greater than or equal to 15mm. The output shaft at the tail of the stepper motor, together with the handwheel, forms the kinetic energy input for manual control. Turning the handwheel counterclockwise closes the manual operation, while turning it clockwise opens it. Manual control enables the automated marching restraint to limit and lock against the external structure. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 3 for Figure 1 A schematic diagram showing the location of the cutting line; Figure 4 for Figure 3 A sectional view along section AA; Explanation of markings in the diagram: Power component 1; Stepper motor 1-1; Piston base 1-2; Motor rear cover 1-3; Handwheel 1-4; Drive controller 2; Control box 2-1; Sensor 2-2; Sensing arm 2-3; MCU 2-4; Linear motion actuator 3; Piston rod 3-1; Front cover 3-2; Bushing 3-3; Sleeve 3-4; Follower arm 3-5; Connecting seat 4. Detailed Implementation

[0014] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0015] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0016] Example 1 like Figure 1-4 As shown, a locking mechanism based on a stepper motor and linear motion includes a power component 1, a drive controller 2, a linear motion actuator 3, and a connecting base 4. The power component 1 is connected to the drive controller 2 and the linear motion actuator 3. The connecting base 4 is simultaneously equipped with the power component 1, the drive controller 2, and the linear motion actuator 3.

[0017] Example 2 like Figure 1-4As shown, the drive controller 2 includes a control box 2-1, a sensor 2-2, a sensing arm 2-3, and an MCU 2-4. The control box 2-1 is fixedly mounted on the connector 4. The sensor 2-2 is installed inside the control box 2-1, the sensing arm 2-3 is installed inside the control box 2-1, and the MCU 2-4 is installed inside the control box 2-1. The sensor 2-2 and the MCU 2-4 are communicatively connected.

[0018] An O-ring is provided inside the control box 2-1.

[0019] Example 3 like Figure 1-4 As shown, the power component 1 includes a stepper motor 1-1, a piston base 1-2, a motor rear cover plate 1-3, and a handwheel 1-4. The stepper motor 1-1 is fixedly installed on the connecting seat 4. The stepper motor 1-1 is a dual-output shaft motor, with one output shaft being a custom lead screw. The piston base 1-2 and the stepper motor 1-1 are connected by a lead screw thread. The piston base 1-2 is connected to the linear motion actuator 3. The motor rear cover plate 1-3 is installed on the stepper motor 1-1, and the handwheel 1-4 is fixedly installed on one end of the dual output shaft of the stepper motor 1-1.

[0020] Example 4 like Figure 1-4 As shown, the linear motion actuator 3 includes a piston rod 3-1, a front cover plate 3-2, a bushing 3-3, a sleeve 3-4, and a follower arm 3-5. The sleeve 3-4 is fixedly installed on the connecting seat 4, the piston rod 3-1 is slidably installed inside the sleeve 3-4, the bushing 3-3 is fixedly installed on the sleeve 3-4, the front cover plate 3-2 is fixedly installed on the bushing 3-3, and the piston base 1-2 is fixedly connected to the piston rod 3-1.

[0021] A sealing gasket is provided between the connecting seat 4 and the front cover plate 3-2.

[0022] The other end of the dual output shaft of the stepper motor 1-1 is threadedly engaged with the piston rod 3-1.

[0023] An oil plug seal is provided between the connecting seat 4 and the sleeve 3-4. This configuration allows the piston rod 3-1 to limit and lock the movement of the external structure. The stepper motor 1-1 drives the piston rod 3-1 to perform a unidirectional reciprocating motion. When the piston rod 3-1 moves forward to limit and lock the external structure, the follower arm 3-5 drives the sensing arm 2-3 forward. After receiving the proximity signal from the sensing arm 2-3, the sensor feeds the data back to the MCU 2-4, which issues a corresponding stop command. Then, the stepper motor 1-1 stops moving. The MCU 2-4 also has the function of receiving and processing signals from external devices. The stepper motor 1-1 is a dual-axis stepper motor. This is a core component providing kinetic energy in an automated marching restraint system, supplying the necessary kinetic energy for automatic control. The forward or reverse rotation of stepper motor 1-1 rotates the front lead screw, driving the piston base 1-2 forward or backward, thus achieving the limit locking of the automated marching restraint system against external structures. The lead screw thread of stepper motor 1-1 has a lead of 5.08 mm, and a 2.96-turn rotation of stepper motor 1-1 is sufficient to achieve a lead greater than or equal to 15 mm. The output shaft at the tail of stepper motor 1-1, together with the handwheel 1-4, forms the kinetic energy input for manual control. Turning the handwheel 1-4 counterclockwise is the manual off state, and turning it clockwise is the manual on state. Manual control enables the automated marching restraint system to limit and lock against external structures.

[0024] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are protected by this utility model.

Claims

1. A locking mechanism based on a stepper motor and linear motion, characterized in that, It includes a power component (1), a drive controller (2), a linear motion actuator (3), and a connecting seat (4). The power component (1) is connected to the drive controller (2), and the power component (1) is connected to the linear motion actuator (3). The power component (1), the drive controller (2), and the linear motion actuator (3) are installed on the connecting seat (4).

2. The locking mechanism based on a stepper motor and linear motion according to claim 1, characterized in that, The drive controller (2) includes a control box (2-1), a sensor (2-2), a sensing arm (2-3), and an MCU (2-4). The control box (2-1) is fixedly installed on the connector (4). The sensor (2-2) is installed inside the control box (2-1). The sensing arm (2-3) is installed inside the control box (2-1). The MCU (2-4) is installed inside the control box (2-1). The sensor (2-2) and the MCU (2-4) are connected in communication.

3. A locking mechanism based on a stepper motor and linear motion according to claim 2, characterized in that, An O-ring is provided inside the control box (2-1).

4. A locking mechanism based on a stepper motor and linear motion according to claim 1, characterized in that, The power component (1) includes a stepper motor (1-1), a piston base (1-2), a motor rear cover plate (1-3), and a handwheel (1-4). The stepper motor (1-1) is fixedly installed on the connecting seat (4). The stepper motor (1-1) is a dual-output shaft motor, with one end of the output shaft being a custom lead screw. The piston base (1-2) and the stepper motor (1-1) are connected by a lead screw thread. The piston base (1-2) is connected to the linear motion actuator (3). The motor rear cover plate (1-3) is installed on the stepper motor (1-1), and the handwheel (1-4) is fixedly installed on one end of the dual output shaft of the stepper motor (1-1).

5. A locking mechanism based on a stepper motor and linear motion according to claim 1, characterized in that, The linear motion actuator (3) includes a piston rod (3-1), a front cover plate (3-2), a bushing (3-3), a sleeve (3-4), and a follower arm (3-5). The sleeve (3-4) is fixedly installed on the connecting seat (4). The piston rod (3-1) is slidably installed inside the sleeve (3-4). The bushing (3-3) is fixedly installed on the sleeve (3-4). The front cover plate (3-2) is fixedly installed on the bushing (3-3). The piston base (1-2) is fixedly connected to the piston rod (3-1).

6. A locking mechanism based on a stepper motor and linear motion according to claim 5, characterized in that, A sealing gasket is provided between the connecting seat (4) and the front cover plate (3-2).

7. A locking mechanism based on a stepper motor and linear motion according to claim 5, characterized in that, The other end of the dual output shaft of the stepper motor (1-1) is threaded into the piston rod (3-1).

8. A locking mechanism based on a stepper motor and linear motion according to claim 5, characterized in that, An oil plug seal is provided between the connecting seat (4) and the sleeve (3-4).

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