CN218097829U - Detection apparatus for photoelectric shaft encoder graduation error - Google Patents
Detection apparatus for photoelectric shaft encoder graduation error Download PDFInfo
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- CN218097829U CN218097829U CN202222373841.XU CN202222373841U CN218097829U CN 218097829 U CN218097829 U CN 218097829U CN 202222373841 U CN202222373841 U CN 202222373841U CN 218097829 U CN218097829 U CN 218097829U
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- 230000005693 optoelectronics Effects 0.000 claims 1
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- 238000005259 measurement Methods 0.000 abstract description 5
- 230000005622 photoelectricity Effects 0.000 abstract description 5
- 230000008878 coupling Effects 0.000 abstract description 3
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Abstract
The utility model belongs to the technical field of the instrument measurement, a detection device and method of photoelectricity shaft angle encoder graduation error are related to, the utility model discloses a parallel bracing mechanism and shaft coupling link together photoelectricity shaft angle encoder and numerical control servo angle device, and coaxial with the operation axis of photoelectricity shaft angle encoder and numerical control servo angle device through horizontal adjustment mechanism. The numerical control servo angle device is controlled to generate a standard angle position with random numbers, the photoelectric shaft angle encoder generates angle signals accordingly, the angle signals are output and displayed by a signal processing unit of the photoelectric shaft angle encoder, and the difference value of the standard angle position and the output angle value of the photoelectric shaft angle encoder is calculated and is the index error value of the current angle position. The utility model discloses an accurate measurement of photoelectricity shaft angle encoder graduation error improves the scientificity, the degree of accuracy and the efficiency that detect.
Description
Technical Field
The utility model belongs to the technical field of the instrument measurement, concretely relates to detection device of photoelectric shaft angle encoder graduation error.
Background
The photoelectric shaft-position encoder (hereinafter referred to as encoder) mainly uses a grating disk or a code disk as a measuring element for measuring a rotation angle. It can be used as angle measuring instrument alone or as measuring part of some equipment or instrument.
Currently, the method for detecting the encoder indexing error is the method introduced in the national measurement and calibration standard of "encoder" of JJF1115-2004, that is, the method uses a turntable (an indexing table, a goniometer) or a polygon and an autocollimator to detect. The main problems of the detection method and the detection device are as follows: 1. the installation and debugging of the rotary table and the encoder are complicated, and the workload is large; 2. the phenomenon of serious misjudgment is easy to occur, and because the traditional method generally adopts integer division, the subdivision error of the encoder to be detected can not be found, and the phenomenon that the division error of the encoder to be detected is smaller when the resolution or the precision is lower can occur, which is obviously inconsistent with the fact; 3. the operation is complex, the detection efficiency is low, and errors are easy to occur.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model provides a can realize encoder graduation error the accuracy measure, improve the detection scientific, the degree of accuracy and the detection device of the photoelectric shaft angle encoder graduation error of efficiency. For solving the technical problem in the background art, the utility model discloses the technical scheme who takes does:
an apparatus for detecting an indexing error of an electro-optical shaft encoder, comprising: a numerical control servo angle device and a photoelectric shaft angle encoder; the numerical control servo angle device is coaxially connected with the photoelectric shaft angle encoder through a coupler, and a signal processing unit on the photoelectric shaft angle encoder displays a rotation angle value generated by the photoelectric shaft angle encoder.
The device for detecting the indexing error of the photoelectric shaft angle encoder further comprises a parallel supporting mechanism, the parallel supporting mechanism comprises a vertical supporting mechanism and a horizontal adjusting mechanism, the horizontal adjusting mechanism comprises a two-dimensional slide rail which is used for adjusting the photoelectric shaft angle encoder and a numerical control servo angle device, the operation axes of the two-dimensional slide rail are coaxial, and the photoelectric shaft angle encoder is connected to the two-dimensional slide rail.
The utility model discloses a parallel support mechanism and shaft coupling link together photoelectric shaft angle encoder and the servo angle device of numerical control, and it is coaxial with photoelectric shaft angle encoder and the servo angle device's of numerical control operation axis through horizontal adjustment mechanism, and installation and debugging are convenient. The numerical control servo angle device is controlled to generate a standard angle position with random numbers, the photoelectric shaft angle encoder generates angle signals accordingly, the angle signals are output and displayed by a signal processing unit of the photoelectric shaft angle encoder, and the difference value of the standard angle position and the output angle value of the photoelectric shaft angle encoder is calculated and is the index error value of the current angle position.
The utility model has the advantages that:
the utility model discloses an accurate measurement of photoelectricity shaft angle encoder graduation error, detection device simple and practical, easy and simple to handle improve the scientificity, the degree of accuracy and the efficiency that detect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are illustrative of some embodiments of the invention, and that those skilled in the art will be able to derive other drawings without inventive step from these drawings, which are within the scope of the present application.
FIG. 1 is a schematic structural diagram of a device for detecting the indexing error of a photoelectric shaft-position encoder;
the device comprises a numerical control servo angle device 1, a coupler 2, a photoelectric shaft angle encoder 3, a parallel supporting mechanism 4, a signal processing unit 41, a vertical supporting mechanism 42 and a horizontal adjusting mechanism.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention.
An indexing error detecting device for an optical-electric shaft angle encoder, as shown in fig. 1, comprises: a numerical control servo angle device 1 and a photoelectric shaft angle encoder 3; the numerical control servo angle device 1 is coaxially connected with the photoelectric shaft angle encoder 3 through a coupler 2, and the coupler 2 is fixed through a connecting flange; the signal processing unit 5 on the photoelectric shaft angle encoder 3 displays the rotation angle value generated by the photoelectric shaft angle encoder 3.
The detection device for the indexing error of the photoelectric shaft angle encoder further comprises a parallel supporting mechanism 4, the parallel supporting mechanism 4 comprises a vertical supporting mechanism 41 and a horizontal adjusting mechanism 42, the vertical supporting mechanism 41 and the horizontal adjusting mechanism 42 are fixedly connected into a whole in a right angle mode, the horizontal adjusting mechanism 42 comprises a two-dimensional sliding rail which is used for adjusting the photoelectric shaft angle encoder 3 and is coaxial with the running axis of the numerical control servo angle device 1, and the photoelectric shaft angle encoder 3 is connected to the two-dimensional sliding rail.
The detection device for realizing the indexing error detection of the photoelectric shaft-position encoder comprises the following steps:
step one, connecting a photoelectric shaft angle encoder 3 and a numerical control servo angle device 1 together through a parallel supporting mechanism 4 and a coupler 2, and enabling the photoelectric shaft angle encoder 3 to be coaxial with the running axis of the numerical control servo angle device 1 through a horizontal adjusting mechanism 42 in the parallel supporting mechanism 4; the specific method comprises the following steps:
a two-dimensional sliding rail which is used for adjusting the operation axes of the photoelectric shaft angle encoder 3 and the numerical control servo angle device 1 to be coaxial is arranged on the horizontal adjusting mechanism 42, the photoelectric shaft angle encoder 3 is connected to the two-dimensional sliding rail, and the operation axes of the photoelectric shaft angle encoder 3 and the numerical control servo angle device 1 are coaxial by adjusting the position of the two-dimensional sliding rail;
step two, opening the photoelectric shaft angle encoder 3 and the numerical control servo angle device 1;
thirdly, resetting the indicating values of the photoelectric shaft angle encoder 3 and the numerical control servo angle device 1;
step four, control the servo angle device of numerical control1 generating a 1 st standard angular position theta with random number 1 The photoelectric shaft angle encoder 3 thus generates a first angle value θ 1 ' and output and display by the signal processing unit 5 of the photoelectric shaft angle encoder 3, and calculate the 1 st standard rotation angle position theta 1 To a first value of angle of rotation theta 1 ' Difference δ 1 ＝θ 1 ′-θ 1 The difference value is the indexing error value of the current corner position;
step five, repeating the step four, wherein the numerical control servo angle device sequentially generates the 2 nd standard angle position theta, the 3 rd standard angle position theta, the i standard angle position theta and the n standard angle position theta 2 、θ 3 、...θ i ...θ n And calculating to obtain the indexing error value delta corresponding to the corner position 2 、δ 3 、...δ i ...δ n (ii) a N standard angular positions θ of the 1 st, 2 nd, 3 nd 1 、θ 2 、θ 3 、...θ i ...θ n Collectively referred to as the standard corner position θ, the magnitude of which is represented by equation (1):
θ＝T+r (1)
in the formula:
t is the integral division part of the standard corner position;
r is the non-integer division part of the standard corner position and is a random number in the range of (0-T).
The embodiment of the utility model provides an in the servo angle device of numerical control, shaft coupling related are prior art, adopt the product commonly used on the market can realize the utility model discloses, no longer detailed description here. In the embodiment of the present invention, the components and the connection relationship thereof are not described in detail, and are prior art or conventional technical means.
Finally, it is to be noted that: the above embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solutions of the present invention, and the scope of the present invention is not limited thereto. Those skilled in the art will understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (3)
1. The device for detecting the indexing error of the photoelectric shaft angle encoder is characterized by comprising a numerical control servo angle device (1) and a coupler (2), wherein the numerical control servo angle device (1) is coaxially connected with the photoelectric shaft angle encoder (3) to be detected through the coupler (2), and a signal processing unit (5) on the photoelectric shaft angle encoder (3) displays a rotation angle value generated by the photoelectric shaft angle encoder (3).
2. The apparatus for detecting the indexing error of an optoelectronic shaft angle encoder according to claim 1, further comprising a square-shaped parallel support mechanism (4), wherein the parallel support mechanism (4) comprises: the lower end part of the vertical supporting mechanism (41) is fixed on one side of the numerical control servo angle device (1), the upper end part of the vertical supporting mechanism (41) is fixedly connected with one end of the horizontal adjusting mechanism (42), the horizontal adjusting mechanism (42) is positioned above the photoelectric shaft angle encoder (3), and the vertical supporting mechanism (41) and the horizontal adjusting mechanism (42) are arranged in a mutually perpendicular mode.
3. A device for detecting indexing errors of an electro-optical shaft angle encoder according to claim 2, characterized in that the leveling mechanism (42) comprises a two-dimensional slide rail for adjusting the running axes of the electro-optical shaft angle encoder (3) and the numerical control servo angle device (1) to be coaxial, and the electro-optical shaft angle encoder (3) is connected to the two-dimensional slide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222373841.XU CN218097829U (en) | 2022-09-07 | 2022-09-07 | Detection apparatus for photoelectric shaft encoder graduation error |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222373841.XU CN218097829U (en) | 2022-09-07 | 2022-09-07 | Detection apparatus for photoelectric shaft encoder graduation error |
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| Publication Number | Publication Date |
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| CN218097829U true CN218097829U (en) | 2022-12-20 |
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| CN202222373841.XU Expired - Fee Related CN218097829U (en) | 2022-09-07 | 2022-09-07 | Detection apparatus for photoelectric shaft encoder graduation error |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115752536A (en) * | 2022-09-07 | 2023-03-07 | 山东省计量科学研究院 | Method and device for detecting indexing error of photoelectric shaft-position encoder |
-
2022
- 2022-09-07 CN CN202222373841.XU patent/CN218097829U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115752536A (en) * | 2022-09-07 | 2023-03-07 | 山东省计量科学研究院 | Method and device for detecting indexing error of photoelectric shaft-position encoder |
| CN115752536B (en) * | 2022-09-07 | 2024-07-02 | 山东省计量科学研究院 | Detection method and detection device for indexing error of photoelectric shaft angle encoder |
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Granted publication date: 20221220 |
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| CF01 | Termination of patent right due to non-payment of annual fee |