Laser displacement sensor calibration jig

Abstract

The utility model discloses a laser displacement sensor calibration jig, which belongs to the technical field of laser displacement sensor calibration, and comprises a positioning part, the positioning part comprises a positioning table, a positioning block and an elastic pressing block, a laser displacement sensor is positioned on the positioning table, and the elastic pressing block elastically presses the laser displacement sensor; the distance between the optical testing plate and the laser displacement sensor is adjustable, so that calibration testing can be carried out on the laser displacement sensor; and the conduction part is used for conducting or disconnecting the laser displacement sensor. The calibration jig for the laser displacement sensor realizes accurate calibration of the laser displacement sensor, is high in calibration accuracy, greatly reduces labor intensity of operators, improves calibration efficiency of the laser displacement sensor, and reduces production cost compared with traditional manual operation. Moreover, the calibration error of the laser displacement sensor can be effectively reduced, and the precision is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser displacement sensor calibration, and particularly relates to a calibration jig for a laser displacement sensor. Background Technique

[0002] A laser displacement sensor is a high-precision sensor that uses laser technology for measurement. It can accurately and non-contactingly measure changes in the position, displacement, etc. of the object to be measured.

[0003] Before the laser displacement sensor is put into use, it needs to be calibrated, that is, the laser displacement sensor needs to record accurate distance data to meet the accuracy requirements of the laser displacement sensor. After recording the accurate data, the laser displacement sensor can be put into use.

[0004] Currently, for the calibration of laser displacement sensors, manual operation is usually adopted. That is, the operator manually places the laser displacement sensor, determines its detection distance, and then connects the laser displacement sensor to enable it to obtain corresponding accuracy data. This method consumes a lot of manpower, is time-consuming and laborious, and has low accuracy. There is a situation where the laser displacement sensor obtains inaccurate data, and accurate calibration of the laser displacement sensor cannot be achieved. Content of the Utility Model

[0005] The utility model overcomes the deficiencies of the prior art and provides a calibration jig for a laser displacement sensor to solve the problems existing in the prior art.

[0006] To achieve the above object, the technical solution adopted by the utility model is: a calibration jig for a laser displacement sensor, comprising

[0007] a positioning part, the positioning part includes a positioning table, a positioning block and an elastic pressing block. The laser displacement sensor is located on the positioning table, and the elastic pressing block elastically presses the laser displacement sensor;

[0008] an optical test board, the distance between the optical test board and the laser displacement sensor is adjustable to calibrate and test the laser displacement sensor;

[0009] a conduction part, the conduction part conducts or disconnects the laser displacement sensor.

[0010] In a preferred embodiment of the utility model, it further includes a base, and both the positioning part and the conduction part are located on the base.

[0011] In a preferred embodiment of the utility model, an installation block is arranged on one side of the base, and a linear module is installed on the installation block to drive the optical test board to move and change the distance between the optical test board and the laser displacement sensor.

[0012] In a preferred embodiment of the present utility model, a standard part is provided on the base to compare the calibrated laser displacement sensor.

[0013] In a preferred embodiment of the present utility model, a positioning protrusion is provided on the positioning table to block and limit the laser displacement sensor.

[0014] In a preferred embodiment of the present utility model, the positioning block is fixedly installed on the positioning table, and the elastic pressing block is installed on the positioning block through a spring to elastically press the laser displacement sensor.

[0015] In a preferred embodiment of the present utility model, the conduction part includes a conduction driver and a conduction probe. The conduction driver drives the conduction probe to enter or exit the laser displacement sensor to conduct or disconnect the laser displacement sensor.

[0016] In a preferred embodiment of the present utility model, the conduction driver is a clamp, and the conduction probe is connected to the conduction driver through a connecting seat.

[0017] The present utility model solves the defects in the background technology and has the following beneficial effects:

[0018] The laser displacement sensor calibration fixture of the present utility model realizes precise calibration of the laser displacement sensor, has high calibration accuracy, greatly reduces the labor intensity of the operator compared with traditional manual operation, improves the calibration efficiency of the laser displacement sensor, and can effectively reduce the calibration error of the laser displacement sensor and improve the accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following further describes the present utility model in conjunction with the drawings and embodiments;

[0020] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the present utility model;

[0021] Figure 2 It is a schematic diagram of the partial structure of a preferred embodiment of the present utility model;

[0022] Figure 3 It is a schematic diagram of the structure of the positioning part of a preferred embodiment of the present utility model;

[0023] Figure 4 It is a schematic diagram of the structure of the conduction part of a preferred embodiment of the present utility model;

[0024] In the figure: 10, positioning part; 11, positioning platform; 111, positioning projection; 12, positioning block; 13, elastic pressing block; 20, optical test board; 30, conduction part; 31, conduction driver; 32, conduction probe; 40, base; 50, mounting block; 51, linear module; 60, standard part; 70, connecting seat. Detailed implementation manners

[0025] The following will disclose multiple implementation manners of the present utility model with the aid of drawings. For the sake of clear illustration, many physical details will be described together in the following narration. However, it should be understood that these physical details are not used to limit the present utility model. That is to say, in some implementation manners of the present utility model, these physical details are unnecessary. In addition, for the purpose of simplifying the drawings, some conventional structures and components will be illustrated in a simple schematic manner in the drawings.

[0026] In addition, in the present utility model, descriptions such as "first", "second", etc. are only for descriptive purposes, and do not particularly refer to the meaning of sequence or order, nor are they used to limit the present utility model. They are merely used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0027] This embodiment provides a calibration fixture for a laser displacement sensor. This calibration fixture for a laser displacement sensor realizes precise calibration of the laser displacement sensor, has high calibration accuracy, greatly reduces the labor intensity of the operator compared with traditional manual operations, improves the calibration efficiency of the laser displacement sensor, and can effectively reduce the calibration error of the laser displacement sensor and improve the accuracy.

[0028] Combined with Figures 1 to 4 As shown, the calibration fixture for a laser displacement sensor in this embodiment includes a positioning part 10, an optical test board 20, and a conduction part 30. The positioning part 10 positions the laser displacement sensor, obtains accurate distance data by moving the optical test board 20, and calibrates the laser displacement sensor. The conduction part 30 conducts or disconnects the laser displacement sensor.

[0029] In this embodiment, the calibration jig for the laser displacement sensor further includes a base 40. The positioning portion 10 and the conduction portion 30 are both located on the base 40. An installation block 50 is provided on one side of the base 40. A linear module 51 is installed on the installation block 50 to drive the optical test board 20 to move, changing the distance between the optical test board 20 and the laser displacement sensor. The linear module 51 in this embodiment can drive the optical test board 20 to change the distance between the optical test board 20 and the laser displacement sensor, so as to realize the calibration process of the laser displacement sensor in different distance states. The linear module 51 drives the optical test board 20, thereby accurately determining the moving distance of the optical test board 20 to determine the distance between the optical test board 20 and the laser displacement sensor, improving the calibration accuracy of the laser displacement sensor.

[0030] Furthermore, a standard component 60 is provided on the base 40 of this embodiment to compare the calibrated laser displacement sensor. There is a display screen on the laser displacement sensor, and the data of the calibrated laser displacement sensor is directly displayed on the display screen. The calibrated laser displacement sensor is compared with the standard component 60 to determine the calibration accuracy of the laser displacement sensor.

[0031] Combined with Figure 1 and Figure 3 As shown, the positioning portion 10 of this embodiment includes a positioning table 11, a positioning block 12, and an elastic pressing block 13. The laser displacement sensor is located on the positioning table 11, and the elastic pressing block 13 elastically presses the laser displacement sensor. The positioning block 12 is fixedly installed on the positioning table 11, and the elastic pressing block 13 is installed on the positioning block 12 through a spring to elastically press the laser displacement sensor. The number of the positioning blocks 12 and the elastic pressing blocks 13 in this embodiment is three each, pressing and positioning the laser displacement sensor from three directions to prevent the position of the laser displacement sensor from shifting during the calibration process, so as to ensure the calibration accuracy of the laser displacement sensor. One of the elastic pressing blocks 13 in this embodiment is provided with a pressing arc, which is located at the corner position of the laser displacement sensor, further improving the pressing and positioning effect on the laser displacement sensor.

[0032] In this embodiment, a positioning protrusion 111 is provided on the positioning table 11 to block and limit the laser displacement sensor. Under the combined action of the positioning protrusion 111 and the elastic pressing block 13, the laser displacement sensor is accurately positioned on the positioning table 11 to ensure the calibration accuracy of the laser displacement sensor.

[0033] Combined with Figure 1 and Figure 4As shown, the conduction part 30 of this embodiment includes a conduction driver 31 and a conduction probe 32. The conduction driver 31 drives the conduction probe 32 to enter or exit the laser displacement sensor to conduct or disconnect the laser displacement sensor. The conduction part 30 of this embodiment is installed on the base 40 through a bracket. The conduction driver 31 drives the conduction probe 32. When the conduction probe 32 is inserted into the laser displacement sensor, it indicates that the laser displacement sensor is in a conduction state. When the conduction probe 32 leaves the laser displacement sensor, it indicates that the laser displacement sensor is disconnected. The laser displacement sensor in the conduction state can be calibrated. Therefore, the presence of the conduction part 30 can quickly realize the on-off of the laser displacement sensor, which is beneficial to the replacement process of the laser displacement sensor and improves the calibration efficiency of the laser displacement sensor.

[0034] In this embodiment, the conduction driver 31 is a clamp. The conduction probe 32 is connected to the conduction driver 31 through a connecting seat 70. The operator can drive the conduction probe 32 through the conduction driver 31. Its structure is simple and the operation is convenient, which is beneficial to improving the calibration efficiency of the laser displacement sensor.

[0035] In actual use of the laser displacement sensor calibration jig of this embodiment, the laser displacement sensor is placed on the positioning table 11 of the positioning part 10, and the laser displacement sensor is elastically pressed and positioned by a plurality of elastic pressing blocks 13. After positioning, the conduction part 30 conducts the laser displacement sensor. The laser displacement sensor in the conduction state changes the position of the optical test board 20 to change the distance between the optical test board 20 and the laser displacement sensor. Precise distance data is obtained by moving the optical test board 20. Then the laser displacement sensor records the data. It uses the precise distance data to calibrate the data of the laser displacement sensor. The calibrated laser displacement sensor is compared with the standard part 60 to determine the calibration accuracy.

[0036] All in all, the laser displacement sensor calibration jig of this embodiment realizes the precise calibration of the laser displacement sensor. Its calibration accuracy is high. Compared with the traditional manual operation, it greatly reduces the labor intensity of the operator, improves the calibration efficiency of the laser displacement sensor, and can effectively reduce the calibration error of the laser displacement sensor and improve the accuracy.

[0037] Although the present utility model has been described above with reference to various embodiments, it should be understood that many changes and modifications can be made without departing from the scope of the present utility model. That is to say, the methods, systems, devices, etc. discussed above are all examples. Various configurations can be appropriately omitted, replaced or added with various processes or components. For example, in an alternative configuration, the method can be executed in an order different from the described order, and / or various stages can be added, omitted and / or combined. Moreover, the features described with respect to certain configurations can be combined in various other configurations. Different aspects and elements of the configurations can be combined in a similar manner. In addition, with the development of technology, many elements are only examples and do not limit the scope of the present disclosure or the claims.

[0038] Specific details are given in the description to provide a thorough understanding of the exemplary configurations including the implementation. However, the configurations can be practiced without these specific details. For example, well-known circuits, processes, algorithms, structures and technologies have been shown without unnecessary details to avoid obscuring the configurations. The description only provides exemplary configurations and does not limit the scope, applicability or configurations of the claims. On the contrary, the foregoing description of the configurations will provide those skilled in the art with an enabling description for implementing the described technology. Various changes can be made to the functions and arrangements of the elements without departing from the spirit or scope of the present disclosure.

[0039] In addition, although each operation can be described as a sequential process, many operations can be performed in parallel or simultaneously. Additionally, the order of the operations can be rearranged. A process may have other steps. Moreover, examples of the method can be implemented by hardware, software, firmware, middleware, code, hardware description language or any combination thereof. When implemented in software, firmware, middleware or code, the program code or code segments for performing the necessary tasks can be stored in a non-transitory computer-readable medium such as a storage medium and executed by a processor to perform the described tasks.

[0040] In summary, it is intended that the above detailed description be considered illustrative rather than restrictive, and it should be understood that the claims (including all equivalents) are intended to define the spirit and scope of the present utility model. The above embodiments should be understood as only illustrative of the present utility model and not restrictive of the protection scope of the present utility model. After reading the content recorded in the present utility model, those skilled in the art can make various changes or modifications to the present utility model, and these equivalent changes and modifications also fall within the scope defined by the claims of the present utility model.

Claims

1. A laser displacement sensor calibration fixture, characterized in that: include A positioning portion (10), the positioning portion (10) comprising a positioning platform (11), a positioning block (12) and an elastic pressing block (13), the laser displacement sensor being located on the positioning platform (11), and the elastic pressing block (13) elastically pressing the laser displacement sensor; An optical test board (20), wherein the distance between the optical test board (20) and the laser displacement sensor is adjustable so as to perform a calibration test on the laser displacement sensor; A conducting part (30) is provided, wherein the conducting part (30) turns on or off the laser displacement sensor.

2. The laser displacement sensor calibration fixture according to claim 1, characterized in that: It also comprises a base (40), and the positioning portion (10) and the conducting portion (30) are both located on the base (40).

3. The laser displacement sensor calibration fixture according to claim 2, characterized in that: A mounting block (50) is provided on one side of the base (40), and a linear module (51) is mounted on the mounting block (50) to drive the optical test board (20) to move and change the distance between the optical test board (20) and the laser displacement sensor.

4. The laser displacement sensor calibration jig according to claim 2, characterized in that: The base (40) is provided with a standard part (60) for comparing the calibrated laser displacement sensor.

5. The laser displacement sensor calibration jig according to claim 1, characterized in that: The positioning platform (11) is provided with a positioning protrusion (111) to block and limit the laser displacement sensor.

6. The laser displacement sensor calibration jig according to claim 1, characterized in that: The positioning block (12) is fixedly mounted on the positioning platform (11), and the elastic pressing block (13) is mounted on the positioning block (12) via a spring to elastically press the laser displacement sensor.

7. The laser displacement sensor calibration jig according to claim 1, characterized in that: The conduction section (30) comprises a conduction driver (31) and a conduction probe (32); the conduction driver (31) drives the conduction probe (32) to enter or exit the laser displacement sensor, so as to turn the laser displacement sensor on or off.

8. The laser displacement sensor calibration jig according to claim 7, characterized in that: The conduction driver (31) is a hand clamp, and the conduction probe (32) is connected to the conduction driver (31) via a connection seat (70).

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