A high-precision displacement detection sensor

Abstract

The utility model discloses a high precision displacement detection sensor, including first sensing part, first sensing part outside is connected with the installation ring, and first sensing part axial displacement detection end inside slidingly connected with telescopic slide rod, the telescopic slide rod is connected with the abutting wheel seat away from first sensing part one end, and the abutting wheel seat is away from telescopic slide rod one end inside and is connected with detection abutting wheel through the pivot rotation, and is contacted with the detection object through detection abutting wheel, the utility model discloses the magnetic induction between the magnetic induction part in first sensing part inside and first magnet is to the displacement of detection object in the axial direction of first sensing part and carries out accurate judgement, and simultaneously through the magnetic induction between the second magnet in second sensing part inside and multiple magnetic induction lines is to the displacement of detection object in the radial direction of first sensing part and carries out accurate judgement, thereby carries out multidimensional displacement detection to detection object, can more comprehensive, accurate capture the displacement state of detection object, reduces the error, avoids the misjudgment.

Description

Technical Field

[0001] This utility model relates to the field of displacement detection, and in particular to a high-precision displacement detection sensor. Background Technology

[0002] In the fields of precision manufacturing, automation control, and equipment condition monitoring, high-precision, multi-dimensional real-time detection of object displacement is a critical requirement. Traditional displacement detection sensors have relatively limited functionality, typically only capable of detecting linear displacement in a single direction (such as the axial direction). They struggle to comprehensively capture the multi-dimensional displacement changes generated by objects under complex motion conditions, which can easily lead to misjudgments.

[0003] To address the aforementioned issues, this patent proposes a displacement detection sensor capable of simultaneously detecting axial and radial displacement, thereby resolving the technical problems mentioned above. Utility Model Content

[0004] The main purpose of this invention is to propose a high-precision displacement detection sensor, which aims to solve the problem that traditional displacement detection sensors can only detect linear displacement in a single direction, which is prone to misjudgment.

[0005] To address the aforementioned problems, this utility model proposes a high-precision displacement detection sensor, comprising a first sensing unit, an externally connected mounting ring, and a telescopic slide rod slidably connected inside the axial displacement detection end of the first sensing unit. A stop wheel seat is connected to the end of the telescopic slide rod away from the first sensing unit, and a detection stop wheel is rotatably connected inside the end of the stop wheel seat away from the telescopic slide rod via a rotating shaft, contacting the object being detected. A second sensing unit is provided outside each of the two rotating shafts of the detection stop wheel, connected to the outside of the stop wheel seat. An axial detection component is provided inside the first sensing unit to accurately detect the axial displacement of the object in the first sensing unit. A radial detection component is provided inside the second sensing unit to accurately detect the radial position of the object in the first sensing unit.

[0006] Preferably, the axial detection component includes a magnetic sensing part, the first sensing part is provided with a magnetic sensing part, and the magnetic sensing part is provided with a square first magnetic sensing cavity, which is connected to the outside through a wire harness.

[0007] Preferably, a first magnet is slidably connected inside the first magnetic cavity, and a square connecting pivot is connected to one end of the first magnet near the telescopic slide rod, and the telescopic slide rod is rotatably connected inside the connecting pivot.

[0008] Preferably, a spring telescopic tube is connected to the center of the end of the first sensing unit away from the telescopic slide rod, and a displacement spring is provided inside the spring telescopic tube, the displacement spring being located between the first magnet and the spring telescopic tube.

[0009] Preferably, the radial detection component includes a second magnetic cavity, the second sensing part has a second magnetic cavity inside, and the rotating shaft of the detection wheel passes through the center of the second magnetic cavity.

[0010] Preferably, the rotating shaft of the detection wheel is connected to a second magnet rotatably connected inside the second magnetic cavity, and a plurality of magnetic field lines located inside the second sensing unit are provided outside the second magnetic cavity and the second magnet.

[0011] Preferably, the plurality of magnetic field lines are connected to connecting rings on both axial directions of the rotating shaft, and both connecting rings are connected to the outside via wire harnesses.

[0012] Beneficial effects: This invention accurately determines the displacement of the object in the axial direction of the first sensing unit by the magnetic induction between the magnetic sensing part inside the first sensing unit and the first magnet, and accurately determines the displacement of the object in the radial direction of the first sensing unit by the magnetic induction between the second magnet inside the second sensing unit and multiple magnetic lines. This allows for multi-dimensional displacement detection of the object, enabling more comprehensive and accurate capture of the object's displacement state, reducing errors, and avoiding misjudgments. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional structural diagram of the displacement detection sensor of this utility model; Figure 2 This is a three-dimensional cross-sectional structural diagram of the displacement detection sensor of this utility model; Figure 3 This is a schematic diagram of the axial detection component structure of this utility model; Figure 4 This is a schematic diagram of the radial detection component structure of this utility model; Figure 5 For the present utility model Figure 4 Enlarged diagram of point A in the middle.

[0015] The annotations in the attached figures are explained as follows: 1. First sensing unit; 2. Mounting ring; 3. Telescopic slide bar; 4. Abutment wheel seat; 5. Detection abutment wheel; 6. Second sensing unit; 7. Magnetic sensing unit; 8. First magnetic sensing cavity; 9. First magnet; 10. Connecting rotating seat; 11. Spring telescopic tube; 12. Displacement spring; 13. Second magnetic sensing cavity; 14. Second magnet; 15. Magnetic field lines; 16. Connecting ring. Detailed Implementation

[0016] 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.

[0017] To achieve the above-mentioned utility model objectives, such as Figures 1-5 As shown, this utility model provides a high-precision displacement detection sensor, including a first sensing unit 1. A mounting ring 2 is externally connected to the first sensing unit 1, and a telescopic slide rod 3 is slidably connected inside the axial displacement detection end of the first sensing unit 1. A stop wheel seat 4 is connected to the end of the telescopic slide rod 3 away from the first sensing unit 1, and a detection stop wheel 5 is rotatably connected inside the end of the stop wheel seat 4 away from the telescopic slide rod 3 via a rotating shaft. The detection stop wheel 5 contacts the object being detected. Second sensing units 6 are provided outside both rotating shafts of the detection stop wheel 5, connected to the outside of the stop wheel seat 4. An axial detection component is provided inside the first sensing unit 1, and the axial detection component measures the axial displacement of the object detected in the first sensing unit 1. The upward displacement is accurately detected. The second sensing unit 6 is equipped with a radial detection component, which accurately detects the radial position of the object to be detected in the first sensing unit 1. During the displacement detection of the object, the first sensing unit 1 is mounted on the equipment through the mounting ring 2 and contacts the object to be detected through the detection abutment 5. The telescopic slide rod 3 is compressed into the first sensing unit 1 by a certain length. When the object to be detected is displaced in the axial direction of the first sensing unit 1, the first sensing unit 1 can convert the displacement of the object to an electrical signal through the internal axial detection component, and accurately determine whether the object to be detected has been displaced in the axial direction of the first sensing unit 1 based on the electrical signal.

[0018] Furthermore, when the object being detected is displaced radially in the first sensing unit 1, the second sensing unit 6 can cooperate with the rotation of the detection wheel 5 and the internal radial detection component to convert the displacement of the object into an electrical signal, and accurately determine whether the object has been displaced radially in the first sensing unit 1 based on the electrical signal. This allows the displacement detection sensor to perform multi-dimensional displacement detection on the object, capture the displacement state of the object more comprehensively and accurately, reduce errors, and avoid misjudgment.

[0019] Preferably, the axial detection assembly includes a magnetic sensing unit 7. The magnetic sensing unit 7 is located inside the first sensing unit 1, and a square first magnetic sensing cavity 8 is located inside the magnetic sensing unit 7. This cavity is connected to the outside via a wiring harness. A first magnet 9 is slidably connected inside the first magnetic sensing cavity 8, and a square connecting pivot 10 is connected to the end of the first magnet 9 near the telescopic slide rod 3. The telescopic slide rod 3 is rotatably connected inside the connecting pivot 10. A spring telescopic tube 11 is connected to the center of the end of the first sensing unit 1 away from the telescopic slide rod 3, and a displacement spring 12 is located inside the spring telescopic tube 11. The displacement spring 12 is located between the first magnet 9 and the spring telescopic tube 11. During the axial displacement detection of the first sensing unit 1, the object being detected moves the telescopic slide rod through the detection abutment 5. The first magnet 9 is compressed into the first sensing part 1 by a certain length and is always in contact with the outside of the object under the action of the displacement spring 12. Therefore, the first magnet 9 does not contact the inner wall of the first sensing part 1 under the pushing of the telescopic slide rod 3 and can slide bidirectionally inside the first magnetic cavity 8. When the object is displaced in the axial direction of the first sensing part 1, the first magnet 9 can slide inside the first magnetic cavity 8 under the dual action of the displacement of the object and the displacement spring 12, and slide inside the magnetic sensing part 7, so that the magnetic sensing part 7 generates an induced current, i.e., an electrical signal. The electrical signal is transmitted out through the wire harness for analysis and judgment of whether the first magnet 9 has moved inside the first magnetic cavity 8, thereby accurately judging whether the object has been displaced in the axial direction of the first sensing part 1.

[0020] Preferably, the radial detection assembly includes a second magnetic cavity 13. The second sensing unit 6 has the second magnetic cavity 13 inside, and the rotating shaft of the detection abutment 5 passes through the center of the second magnetic cavity 13. The rotating shaft of the detection abutment 5 is connected to a second magnet 14 rotatably connected inside the second magnetic cavity 13. Multiple magnetic field lines 15 located inside the second sensing unit 6 are arranged outside the second magnetic cavity 13 and the second magnet 14. Each of the multiple magnetic field lines 15 is connected to a connecting ring 16 on both axial directions of the rotating shaft, and both connecting rings 16 are connected to the outside via wire harnesses. This allows for displacement detection in the radial direction of the detection unit 1. During the process, since multiple magnetic field lines 15 are connected head-to-head through two connecting rings 16, and the two connecting rings 16 are respectively connected to the outside through wire harnesses, when the object being detected is displaced in the radial direction of the first sensing part 1, the object being detected will drive the detection abutment 5 to rotate inside the abutment seat 4, so that the detection abutment 5 drives the second magnet 14 to rotate inside the multiple magnetic field lines 15 through the rotating shaft, thereby generating an induced current, i.e. an electrical signal. The electrical signal is transmitted out through the wire harness for analysis and judgment of whether the second magnet 14 is rotating inside the second magnetic cavity 13, thereby accurately judging whether the object being detected is displaced in the radial direction of the first sensing part 1.

[0021] Since the detection abutment 5 can rotate in the axial direction of the first sensing part 1 via the telescopic slide rod 3 and the first magnet 9, and the detection abutment 5 is spherically shaped, when the object being detected is displaced in the radial direction of the first sensing part 1, the object will cause the detection abutment 5 to deflect to the direction of least resistance. That is, the two shafts of the detection abutment 5 will deflect to be perpendicular to the displacement direction of the object being detected under the action of the detection abutment 5, so that the detection abutment 5 can rotate smoothly and drive the second magnet 14 to rotate inside the multiple magnetic field lines 15.

[0022] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A high-precision displacement detection sensor, comprising a first sensing unit (1), an external mounting ring (2) connected to the first sensing unit (1), and a telescopic slide rod (3) slidably connected inside the axial displacement detection end of the first sensing unit (1), a stop wheel seat (4) connected to one end of the telescopic slide rod (3) away from the first sensing unit (1), and a detection stop wheel (5) rotatably connected inside the end of the stop wheel seat (4) away from the telescopic slide rod (3) via a rotating shaft, and contacting the detection object through the detection stop wheel (5), wherein a second sensing unit (6) connected to the outside of the stop wheel seat (4) is provided on both rotating shafts of the detection stop wheel (5), characterized in that: The first sensing unit (1) is equipped with an axial detection component, and the displacement of the object to be detected in the axial direction of the first sensing unit (1) is accurately detected by the axial detection component. The second sensing unit (6) is provided with a radial detection component, and the radial detection component is used to accurately detect the position of the object to be detected in the radial direction of the first sensing unit (1).

2. The high-precision displacement detection sensor as described in claim 1, characterized in that, The axial detection component includes a magnetic sensing part (7), which is provided inside the first sensing part (1). The magnetic sensing part (7) has a square first magnetic sensing cavity (8) inside and is connected to the outside via a wire harness.

3. The high-precision displacement detection sensor as described in claim 2, characterized in that, The first magnetic cavity (8) is slidably connected to a first magnet (9), and a square connecting seat (10) is connected to one end of the first magnet (9) near the telescopic slide rod (3). The telescopic slide rod (3) is rotatably connected inside the connecting seat (10).

4. The high-precision displacement detection sensor as described in claim 3, characterized in that, The first sensing unit (1) is connected to a spring telescopic tube (11) at the center of the end away from the telescopic slide rod (3), and a displacement spring (12) is provided inside the spring telescopic tube (11). The displacement spring (12) is located between the first magnet (9) and the spring telescopic tube (11).

5. A high-precision displacement detection sensor as described in claim 1, characterized in that, The radial detection assembly includes a second magnetic cavity (13), the second sensing part (6) has a second magnetic cavity (13) inside, and the rotating shaft of the detection wheel (5) passes through the center of the second magnetic cavity (13).

6. The high-precision displacement detection sensor as described in claim 5, characterized in that, The rotating shaft of the detection wheel (5) is connected to a second magnet (14) rotatably connected inside the second magnetic cavity (13). Multiple magnetic field lines (15) located inside the second sensing part (6) are provided outside the second magnetic cavity (13) and the second magnet (14).

7. A high-precision displacement detection sensor as described in claim 6, characterized in that, The multiple magnetic field lines (15) are connected to connecting rings (16) on both axes of the rotating shaft, and both connecting rings (16) are connected to the outside through wire harnesses.

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