Optical fiber sensing control teaching experiment table

Abstract

The utility model discloses an optical fiber sensing control teaching experiment table, and relates to the technical field of teaching experiments, the teaching experiment table comprises a support platform, a rotating platform and a test article, the support platform is provided with an execution unit, a detection unit and a control unit; the execution unit is used for driving the rotating platform to rotate, and the test article is installed on the rotating platform; the detection unit is used for detecting position information of a test article, the detection unit comprises an optical fiber sensor, a mounting rack is arranged on the supporting platform, the optical fiber sensor is fixedly mounted on the mounting rack, and when the rotating platform rotates, the test article passes through a measurement range of the optical fiber sensor; the control unit is used for collecting data information of the optical fiber sensor and controlling start and stop of the execution unit; according to the utility model, an actual execution mechanism is matched to carry out a teaching experiment on optical fiber sensor control, and the teaching effect of students can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching experiments, in particular to an optical fiber sensing control teaching experiment table. Background Art

[0002] At present, with the continuous progress and development of electronic control technology, the requirements for the automation of the system are getting higher and higher. As a commonly used sensor in electronic control systems, the research and teaching of optical fiber sensors are very common.

[0003] In the existing fiber optic sensor testing teaching experiments, the fiber optic sensors are of a single model, and the experiments are often just for collecting data. There is no actual actuator to cooperate with it to achieve process control and simulate the actual process flow. Students cannot intuitively understand the actual application of fiber optic sensors in industry, which affects the teaching effect. Utility Model Content

[0004] The utility model provides an optical fiber sensing control teaching experiment platform, which is convenient for students to intuitively understand the practical application of optical fiber sensors in industry and helps to improve teaching effects.

[0005] The utility model specifically adopts the following technical solutions:

[0006] An optical fiber sensing control teaching experiment platform, comprising: a supporting platform, a rotating platform and a test object, wherein the supporting platform is provided with an execution unit, a detection unit and a control unit;

[0007] The execution unit is used to drive the rotating platform to rotate, and the test object is installed on the rotating platform;

[0008] The detection unit is used to detect the position information of the test object. The detection unit includes an optical fiber sensor. A mounting frame is provided on the support platform. The optical fiber sensor is fixedly mounted on the mounting frame. When the rotating platform rotates, the test object passes through the measurement range of the optical fiber sensor.

[0009] The control unit is used to collect data information of the optical fiber sensor and control the start and stop of the execution unit.

[0010] Optionally, there is at least one detection unit.

[0011] Optionally, the execution unit includes a servo motor and a reducer, the body of the servo motor is arranged inside the support platform, the reducer is connected to the output shaft of the servo motor, the output shaft of the reducer is coaxially fixedly connected to the rotating platform through a coupling, and the side wall of the support platform is provided with a rotating hole for the coupling to pass through.

[0012] Optionally, the control unit includes a start button, an emergency stop button, and a touch panel arranged on the support platform, and a PLC controller is arranged inside the support platform;

[0013] The execution unit and the detection unit are both electrically connected to the PLC controller, and the PLC controller displays the status information of the execution unit and the detection unit on the touch panel;

[0014] The start button is used to control the servo motor to start running. Each time the start button is pressed, the PLC controller receives the start button signal, thereby triggering the start signal of the servo motor to make the PLC controller control the rotating platform to rotate 90°;

[0015] The emergency stop button is used to control the servo motor to stop urgently.

[0016] Optionally, an automatic mode option is displayed on the touch panel. Under the automatic mode option, when the test object on the rotating platform passes through the measuring range of the optical fiber sensor, the PLC controller triggers a start signal to control the operation of the servo motor to automatically rotate the rotating platform 360°.

[0017] Optionally, the control unit further includes an origin switch, an extension plate is provided on the side wall of the mounting frame, the origin switch is installed on the free end side wall of the extension plate, and the origin switch is electrically connected to the servo motor.

[0018] Optionally, a mounting seat is provided on the rotating platform, and a clamp for fixing the test object is provided on the mounting seat.

[0019] Optionally, a safety door is hingedly provided on the top wall of the support platform, a transparent observation window is provided on the safety door, and the safety door is fixed to the support platform by a lock.

[0020] Optionally, a power socket and a network cable interface are installed on the side wall of the support platform.

[0021] Optionally, handles are provided on both side walls of the support platform, and nylon blocks are provided at the four corners of the bottom of the support platform.

[0022] The utility model provides an optical fiber sensing control teaching experiment platform, which has the following beneficial effects:

[0023] 1. The servo motor drives the rotating platform to rotate, so that several test objects can rotate, and then the test objects can be detected by the optical fiber sensor. By using the actual actuator and the optical fiber sensor to control the teaching, it is convenient for students to understand the application of optical fiber sensors in industry, which helps to improve the teaching effect for students;

[0024] 2. Use a clamp to fix the optical fiber sensor on the mounting base, which is convenient for disassembly and replacement of optical fiber sensors of different models, and helps to improve students' learning experience;

[0025] 3. The teaching experiment table has two modes: manual control of the rotating platform rotation and automatic control of the rotating platform rotation, which helps to enrich students' learning experience and improve teaching effectiveness.

[0026] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present utility model, nor are they intended to limit the scope of the present utility model. Other features of the present utility model will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 This is a schematic diagram of the overall structure of the teaching experiment platform in the embodiment of the present application;

[0029] Figure 2 This is a front view structural diagram of a teaching experiment table in an embodiment of the present application;

[0030] Figure 3 for Figure 2 The cross-sectional structure schematic diagram along the BB direction is shown in FIG.

[0031] Figure numerals: 1. Support platform; 2. Rotating platform; 21. Mounting seat; 22. Fixture; 3. Test item; 4. Execution unit; 41. Servo motor; 42. Reducer; 43. Coupling; 5. Detection unit; 51. Mounting bracket; 52. Fiber optic sensor; 6. Control unit; 61. Start button; 62. Emergency stop button; 63. Touch panel; 64. Origin switch; 65. Extension plate; 7. Safety door; 8. Lock; 9. Power socket; 10. Network cable interface; 11. Handle; 12. Nylon block; 13. Transparent observation window. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0033] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0034] This embodiment provides a fiber optic sensing control teaching experiment platform. Figure 1 The teaching experiment table includes a supporting platform 1 arranged in a box body, and control components are arranged inside the supporting platform 1. A safety door 7 is hingedly connected to the top wall of the supporting platform 1, and a transparent observation window 13 is embedded in the safety door 7. The state of the control components inside the supporting platform 1 can be observed through the transparent observation window 13. The safety door 7 is fixedly connected to the supporting platform 1 through a lock buckle 8. The operator can open the lock buckle 8 with a key to repair and replace the control components inside the supporting platform 1.

[0035] Both side walls of the support platform 1 are provided with handles 11 , which facilitate personnel to lift and move the support platform 1 .

[0036] Nylon stoppers 12 are respectively installed at the four corners of the bottom of the support platform 1 to raise the support platform 1 and prevent the bottom of the support platform 1 from being worn during use.

[0037] The side wall of the support platform 1 is also designed to be equipped with a power socket 9 and a network cable interface 10, and the power cord and the network cable can be directly inserted into the outside of the support platform 1, which is convenient for powering on the equipment and programming and debugging.

[0038] Reference Figure 1The side wall of the support platform 1 is provided with a rotating platform 2 and a test object 3, and the support platform 1 is provided with an execution unit 4, a detection unit 5 and a control unit 6. In order to improve the user experience of the experimental operator, the side wall of the support platform 1 located at the rotating platform 2, the test object 3, the execution unit 4, the detection unit 5 and the control unit 6 is set as an inclined surface, which is convenient for the experimental operator to perform experimental tests.

[0039] In this embodiment, the number of test objects 3 is four, and the rotating platform 2 is arranged in a disc shape. The four test objects 3 are all arranged on the rotating platform 2 and arranged in a circumferential array along the rotating platform 2. The rotating platform 2 is provided with a mounting seat 21 corresponding to each test object 3. The mounting seat 21 is fixed to the supporting platform 1 by mounting bolts, and a clamp 22 for fixing the test object 3 is provided on the mounting seat 21.

[0040] Among them, the detection unit 5 is used to detect the position information of the test object 3. The detection unit 5 includes three optical fiber sensors 52. The three optical fiber sensors 52 can be respectively a reflective optical fiber sensor 52, a regression reflective optical fiber sensor 52, and a transmission optical fiber sensor 52. A mounting frame 51 is correspondingly provided on the support platform 1. The mounting frame 51 is set in an inverted L shape. The vertical end of the mounting frame 51 can be detachably connected to the side wall of the support platform 1, and the horizontal end of the mounting frame 51 extends to the top of the rotating platform 2. The optical fiber sensor 52 is fixedly installed on the side wall and bottom wall position of the horizontal end of the mounting frame 51.

[0041] The execution unit 4 is used to be arranged inside the supporting platform 1 , and the control unit 6 is used to collect data information of the optical fiber sensor 52 and control the start and stop of the execution unit 4 .

[0042] The optical fiber sensor 52 in this embodiment includes two detection probes, and a measurement range is reserved between the two detection probes. When the control unit 6 controls the execution unit 4 to start, the rotating platform 2 rotates under the drive of the execution unit 4, and then when the four test objects 3 pass through the measurement range between the two detection probes of the optical fiber sensor 52, the optical fiber sensor 52 can detect whether there is an object passing.

[0043] The teaching experiment platform with the above structure has an actual actuator to cooperate with the optical fiber sensor 52 to control teaching, and the three optical fiber sensors 52 can be detachably installed on the mounting frame 51, which is convenient for the experiment operator to replace the optical fiber sensors 52 of different models, and helps to improve the teaching effect on students.

[0044] Reference Figure 2 and Figure 3The execution unit 4 includes a servo motor 41 and a reducer 42. The body of the servo motor 41 is fixedly installed inside the support platform 1. The reducer 42 is connected to the output shaft of the servo motor 41. The output shaft of the reducer 42 is coaxially fixedly connected to the rotating platform 2 through a coupling 43. The side wall of the support platform 1 is provided with a rotating hole for the coupling 43 to pass through.

[0045] Reference Figure 1 and Figure 2 The control unit 6 includes a start button 61, an emergency stop button 62 and a touch panel 63 arranged on the support platform 1. A PLC controller is provided inside the support platform 1. The optical fiber sensor 52 and the touch panel 63 of the execution unit 4 and the detection unit 5 are all electrically connected to the PLC controller.

[0046] The start button 61 is used to control the servo motor 41 to start running. Each time the operator presses the start button 61, the PLC controller receives the signal of the start button 61, thereby triggering the start signal for controlling the operation of the servo motor 41, so as to control the rotating platform 2 to rotate 90°. The emergency stop button 62 is used to control the servo motor 41 to stop running urgently. After the rotating platform 2 rotates 90°, if the optical fiber sensor 52 detects the test object, the detection information can be sent to the PLC controller, and the PLC controller processes the detection information and sends the detection information to the touch panel 63 for display, so that students can intuitively understand the actual application scenarios of the optical fiber sensor 52.

[0047] In order to further enhance the richness of the control teaching of the optical fiber sensor 52, the operator can write a program in the PLC controller so that the operator can control the automatic start function of the servo motor 41 through the touch panel 63, so the touch panel 63 can be set to display an automatic mode option; under the automatic mode option, when the test object on the rotating platform 2 passes through the measuring range of the optical fiber sensor 52, the PLC controller triggers the start signal to control the operation of the servo motor, so that the rotating platform 2 automatically rotates 360°.

[0048] In this embodiment, the control unit 6 combines the two modes of manually controlling the operation of the servo motor 41 and automatically controlling the operation of the servo motor, which helps to enrich the teaching effect and enhance the students' learning experience.

[0049] Reference Figure 1 The control unit 6 also includes an origin switch 64. In this embodiment, the origin switch 64 can be a proximity switch. The free end side wall of the horizontal side wall of the mounting frame 51 is provided with an extension plate 65. The extension plate 65 includes an upper horizontal portion, a vertical portion and a lower horizontal portion connected in sequence. One end of the upper horizontal portion is fixed to the top wall of the horizontal side wall of the mounting frame 51 by a fastening bolt. The origin switch 64 is detachably mounted on the lower horizontal portion of the extension plate 65.

[0050] In this embodiment, the upper horizontal portion is arranged in an L-shape, so that the origin switch 64 and the other three optical fiber sensors 52 are arranged opposite to each other in pairs along the axis of the rotating platform 2 .

[0051] The origin switch 64 is electrically connected to the servo motor 41. As the rotating platform 2 rotates, when the origin switch 64 detects that there is a test object 3 nearby, it means that the output shaft of the servo motor 41 rotates to the origin starting position, thereby achieving reset calibration of the origin position of the output shaft of the servo motor 41.

[0052] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A fiber optic sensing control teaching experiment platform, It is characterized in that It comprises a supporting platform (1), a rotating platform (2) and a test object (3), wherein the supporting platform (1) is provided with an execution unit (4), a detection unit (5) and a control unit (6); The execution unit (4) is used to drive the rotating platform (2) to rotate, and the test object (3) is installed on the rotating platform (2); The detection unit (5) is used to detect position information of the test article (3), the detection unit (5) comprises an optical fiber sensor (52), a mounting frame (51) is provided on the support platform (1), the optical fiber sensor (52) is fixedly mounted on the mounting frame (51), and when the rotating platform (2) rotates, the test article (3) passes through the measurement range of the optical fiber sensor (52); The control unit (6) is used to collect data information from the optical fiber sensor (52) and control the start and stop of the execution unit (4).

2. The teaching experiment platform according to claim 1, It is characterized in that The detection unit (5) is at least one.

3. The teaching experiment platform according to claim 1, It is characterized in that The execution unit (4) comprises a servo motor (41) and a reducer (42); the body of the servo motor (41) is arranged inside the support platform (1); the reducer (42) is connected to the output shaft of the servo motor (41); the output shaft of the reducer (42) is coaxially fixedly connected to the rotating platform (2) via a coupling (43); and the side wall of the support platform (1) is provided with a rotating hole for the coupling (43) to pass through.

4. The teaching experiment platform according to claim 1, It is characterized in that The control unit (6) comprises a start button (61), an emergency stop button (62), and a touch panel (63) arranged on the support platform (1); a PLC controller is arranged inside the support platform (1); The execution unit (4) and the detection unit (5) are both electrically connected to a PLC controller, and the PLC controller displays status information of the execution unit (4) and the detection unit (5) on a touch panel (63); The start button (61) is used to control the servo motor (41) to start running. Each time the start button (61) is pressed, the PLC controller receives a start button (61) signal, thereby triggering a start signal for the servo motor (41) to run, so that the PLC controller controls the rotating platform (2) to rotate 90 degrees. The emergency stop button (62) is used to control the servo motor (41) to stop urgently.

5. The teaching experiment platform according to claim 4, It is characterized in that An automatic mode option is displayed on the touch panel (63). Under the automatic mode option, when the test object (3) on the rotating platform (2) passes through the measuring range of the optical fiber sensor (52), the PLC controller triggers a start signal to control the operation of the servo motor (41), so that the rotating platform (2) automatically rotates 360 degrees.

6. The teaching experiment platform according to claim 4, It is characterized in that The control unit (6) further comprises an origin switch (64); an extension plate (65) is provided on the side wall of the mounting frame (51); the origin switch (64) is mounted on the free end side wall of the extension plate (65); and the origin switch (64) is electrically connected to the servo motor (41).

7. The teaching experiment platform according to claim 1, It is characterized in that A mounting seat (21) is provided on the rotating platform (2), and a clamp (22) for fixing the test object (3) is provided on the mounting seat (21).

8. The teaching experiment platform according to claim 1, It is characterized in that A safety door (7) is hingedly provided on the top wall of the support platform (1), a transparent observation window (13) is provided on the safety door (7), and the safety door (7) is fixed to the support platform (1) via a lock (8).

9. The teaching experiment platform according to claim 1, It is characterized in that A power socket (9) and a network cable interface (10) are installed on the side wall of the support platform (1).

10. The teaching experiment platform according to claim 1, It is characterized in that Both side walls of the support platform (1) are provided with handles (11), and nylon stoppers (12) are provided at the four corners of the bottom of the support platform (1).

Images