Angle positioning device

Abstract

The utility model discloses an angle positioning device, which comprises a mounting plate and a polarization seat, the polarization seat is parallel to the mounting plate and can rotate around the mounting plate, an induction plate is arranged on the polarization seat, a pair of proximity switches is arranged on the mounting plate, and when the polarization seat drives the induction plate to rotate, the proximity switches are switched on and switched off. The proximity switches rotate relative to the induction plate in position, when the induction plate is close to the proximity switches, the proximity switches work, and therefore the proximity switches output electric signals of different signal types to achieve angle positioning. The system is suitable for high-precision and anti-interference rapid positioning scenes.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment technology, and in particular to an angle positioning device. Background Technology

[0002] Traditional mechanical equipment angle positioning technology has the following problems:

[0003] 1. Mechanical structural defects: Traditional contact encoders suffer from mechanical wear, which leads to a decrease in accuracy after long-term use;

[0004] 2. Calibration complexity: Existing solutions require periodic zero-point calibration, resulting in high maintenance costs. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide an angle positioning device that is suitable for high-precision, interference-resistant, and rapid positioning scenarios.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: an angle positioning device, comprising: a mounting plate and a polarization seat parallel to the mounting plate and rotatable around the mounting plate. The polarization seat is provided with a sensing plate, and the mounting plate is provided with a pair of proximity switches. When the polarization seat drives the sensing plate to rotate, the positions of the pair of proximity switches and the sensing plate rotate relative to each other. When the sensing plate approaches the proximity switches, the proximity switches are activated, thereby achieving angle positioning by outputting electrical signals of different signal types through the pair of proximity switches.

[0007] As a further improvement of this utility model, during the rotation of the sensing plate, the positional relationship between the sensing plate and the pair of proximity switches includes: the sensing plate not contacting the pair of proximity switches at the same time, the sensing plate contacting only one of the proximity switches at the same time, and the sensing plate contacting the pair of proximity switches at the same time.

[0008] As a further improvement of this utility model, when the sensing plate senses the proximity switch, the output signal category is 1, and when the sensing plate does not sense the proximity switch, the output signal category is 0. Therefore, the signal categories output by a pair of proximity switches include (0,0), (1,0), (0,1) and (1,1).

[0009] The beneficial effects of this utility model are:

[0010] This invention analyzes and judges different signals output by a proximity switch to find a reference point and accurately position the angle; it solves the problems of high operating threshold, high environmental sensitivity, and high maintenance cost of existing mechanical equipment in complex environments. Attached Figure Description

[0011] Figure 1 This is an exploded view of an embodiment of the present invention;

[0012] Figure 2 This is a schematic diagram illustrating different working states provided in the embodiments of this utility model;

[0013] Figure 3 This is a schematic diagram of the working state (0,0) in an embodiment of this utility model;

[0014] Figure 4 This is a schematic diagram of the working state (1,0) in an embodiment of this utility model;

[0015] Figure 5 This is a schematic diagram of one of the working states (1,1) in an embodiment of this utility model;

[0016] Figure 6 This is a schematic diagram of the working state (0,1) in an embodiment of this utility model;

[0017] Figure 7 This is a schematic diagram of another working state (0,0) in an embodiment of this utility model.

[0018] Figure label:

[0019] 1. Polarization base, 2. Sensing plate, 3. Mounting plate, 4. Proximity switch. Detailed Implementation

[0020] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0021] Example

[0022] like Figure 1 As shown, an angle positioning device achieves its positioning function through non-contact angle positioning using proximity switches 4 and precise positioning of a reference point. The required components include: two proximity switches 4 mounted on a mounting plate 3, and a sensing plate 2 mounted on a polarization base 1. When the positioning device is in operation, the proximity switches 4 are stationary relative to the support, while the sensing plate 2 is fixed to the polarization base 1 and rotates about its axis. The proximity switches 4 cooperate with the sensing plate 2. As the sensing plate 2 rotates about its axis, the proximity switches and the sensing plate 2 rotate relative to each other. When the sensing plate 2 approaches the proximity switches 4, the proximity switches 4 are activated. Utilizing this principle, by setting two proximity switches 4, the device can automatically find a reference point upon startup, thereby achieving precise positioning.

[0023] Two proximity switches 4 provide different signal types, and these different electrical signals are used to determine the angular orientation. "1,0" indicates whether the proximity switch 4 has detected the sensing plate 2. Different forms of "1,0" signals are used to initially estimate the position. Then, by recording the angle at the moment the signal changes instantaneously, a specific angle range is obtained. Finally, the median value of the determined range is used as a reference. This allows for accurate determination of the reference position every time the device is powered on, improving the satellite alignment accuracy and stability.

[0024] like Figure 2 As shown, Figure 2 In the diagram, "1" and "2" represent proximity switches 1 and 2, respectively. The dashed circles indicate different positions of proximity switches 4, while the solid circles represent proximity switches 4 at specific angles. The rotating component is the sensing plate 2. The diagram is for relative position reference only; different operating states may vary. Figures 3-7 As shown, the possible states when the device is powered on are:

[0025] ① "0,0" state: Neither proximity switch 1 nor proximity switch 2 overlaps with the sensing plate, and neither generates an electrical signal. (Hereinafter, "1" and "2" refer to proximity switches 1 and 2 respectively.)

[0026] ② "1,0" state: No. 1 overlaps with the induction plate and generates an electrical signal; No. 2 does not overlap with the induction plate and does not generate an electrical signal.

[0027] ③ "1,1" state: Both No. 1 and No. 2 overlap with the induction plate to generate an electrical signal.

[0028] ④ "0,1" state: No. 1 does not overlap with the sensing plate and does not generate an electrical signal; No. 2 overlaps with the sensing plate and generates an electrical signal.

[0029] ⑤ "1,1" state: Both No. 1 and No. 2 overlap with the induction plate to generate an electrical signal.

[0030] Among them, states ① and ② are located in angle interval 1; state ③ is located in angle interval 2; and states ④ and ⑤ are located in angle interval 3.

[0031] The positioning principle of this embodiment will be further explained below:

[0032] When the power-on signal is in either "0,0" or "1,0", a clockwise rotation program is input (the rotation refers to the rotation of the induction plate 2 fixed on the polarization base 1). By capturing the signal change of the proximity switch 4, when a "1,1" signal is captured, the angle value x at that position is recorded. Continuing to rotate and capturing the "0,1" position, the angle value y at that position is recorded. The output angle interval [x,y] is then defined as "Interval Two". The default reference point is the middle position of "Interval Two". The calculation is as follows:

[0033] Reference point angle = (x+y) / 2;

[0034] When the power-on signal is in the "1,1" state, a counter-clockwise rotation program is input. By capturing the signal change of the proximity switch, if a "1,0" signal is captured first, the angle value m at that position is recorded, and a clockwise rotation program is input. When a "0,1" signal is captured, the angle value n at that position is recorded, and the output angle interval [m,n] is defined as "Interval Two". The default value is the middle position of "Interval Two" as the reference point. The calculation is as follows:

[0035] Reference point angle = (m+n) / 2;

[0036] If a "0, 1" signal is captured first, continue rotating counterclockwise. When a "1, 1" signal is captured, record the angle value y1 at that position. Continue rotating counterclockwise until a "1, 0" signal is captured, then record the angle value x1 at that position. Output the angle interval [x1, y1]. [x1, y1] is "Interval Two". The default value is the middle position of "Interval Two". Calculations are performed as follows:

[0037] Reference point angle = (x1 + y1) / 2;

[0038] When the power-on signal is in the "0,1" state, a fixed input counter-clockwise rotation program is used. By capturing the signal changes of the proximity switch, when a "1,1" signal is captured, the angle value n1 at that position is recorded. The counter-clockwise rotation continues until a "1,0" signal is captured, at which point the angle value m1 at that position is recorded. The output angle interval [m1,n1] is then defined as "Interval Two," with the default reference point being the middle position of "Interval Two." The calculation is as follows:

[0039] Reference point angle = (m1 + n1) / 2;

[0040] This method allows for precise location of the "reference point" each time the device is powered on, enabling accurate angle positioning.

[0041] This embodiment utilizes four states output by two sensors (i.e., proximity switches) to accurately calculate the reference point position. It is characterized by high efficiency, stability, and speed, perfectly solving the problem of angle positioning every time the device is turned on.

[0042] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. An angular positioning device, characterized by The application relates to a polarizing seat rotating device, which comprises an installation plate and a polarizing seat parallel to the installation plate and rotatable around the installation plate, wherein an inductive plate is arranged on the polarizing seat, and a pair of proximity switches are arranged on the installation plate; when the polarizing seat drives the inductive plate to rotate, a pair of the proximity switches and the inductive plate are relatively rotated; when the inductive plate approaches the proximity switches, the proximity switches work, thereby realizing angle positioning through a pair of the proximity switches outputting different signal types of electric signals. In the rotating process of the inductive plate, the positional relationship between the inductive plate and a pair of the proximity switches comprises that the inductive plate is not in contact with a pair of the proximity switches, the inductive plate is in contact with only one of the proximity switches, and the inductive plate is in contact with a pair of the proximity switches.

2. The angular positioning device of claim 1, wherein, When the inductive plate senses the proximity switches, the signal type output is 1; when the inductive plate does not sense the proximity switches, the signal type output is 0; and the signal types output by a pair of the proximity switches comprise (0, 0), (1, 0), (0, 1) and (1, 1).

3. The angular positioning device of claim 2, wherein, ​

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