Displacement sensor calibration device

Abstract

The utility model provides a displacement sensor calibration device, which belongs to the technical field of displacement sensor production, and comprises a support assembly, a base, a moving part slidably mounted at the upper end of the base, and a support part slidably mounted at the upper end of the moving part; the calibration assembly comprises a fixing plate fixedly connected to the end of the supporting piece, a mounting base slidably connected to the side wall of the base and a positioning rod clamped in the middle of the mounting base. The beneficial effects of the utility model are that the calibration device for the displacement sensor can accurately calibrate the displacement sensor, and can adjust parameters such as zero point, measuring range and the like of the displacement sensor, so that the measurement error of the displacement sensor is controlled within an extremely small range, the situation of unqualified products caused by the measurement error is reduced, and the production efficiency is improved. The sensor can be fixed only by replacing the sensor fixing plate or adding auxiliary mounting parts at the end part of the fixing plate, and the displacement sensor is calibrated and tested, so that technical personnel are helped to quickly find problems.

Description

TECHNICAL FIELD

[0001] The utility model belongs to displacement sensor production technical field, and specifically relates to a displacement sensor calibration device. BACKGROUND

[0002] In the modern industrial automation process, displacement sensors are widely used. For example, in the automated production line of automobile manufacturing, robots need to accurately grasp and place parts, which requires displacement sensors to provide accurate position information. Similarly, in the assembly process of electronic products, precise displacement detection is also essential to ensure the correct installation position of small parts such as chips. With the continuous improvement of industrial automation, the accuracy and reliability of displacement sensors are increasingly required. The technology of displacement sensors is also constantly improving, and new measurement principles and technologies are emerging. For example, new sensors such as fiber optic displacement sensors and capacitive displacement sensors are constantly emerging, which have higher sensitivity and resolution.

[0003] However, displacement sensors also face calibration problems in actual production. Traditional calibration methods often cannot meet the high-precision calibration requirements, and displacement sensors of different specifications have large size differences, requiring multiple calibration devices to be used together, which is costly and inconvenient to move and install calibration test devices. UTILITARIAN CONTENT

[0004] The utility model aims at providing a kind of displacement sensor calibration device, to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of displacement sensor calibration device, comprising,

[0007] Supporting assembly, including base, mobile piece of sliding installation in the upper end of the base, support piece of sliding installation in the upper end of the mobile piece;

[0008] Calibration assembly, including fixedly connected in the end of the support piece Fixed plate, slidingly connected in the side wall of the base Mounting seat, and the positioning rod of clamping in the middle of mounting seat, the positioning rod is installed below the fixed plate.

[0009] As a preferred scheme of the utility model, the calibration assembly further includes a pointer installed on the side wall of the mounting seat, and a scale plate fixedly connected to the side wall of the base, the end of the pointer is in sliding contact with the side wall of the scale plate.

[0010] As a preferred scheme of the utility model, the calibration assembly further includes a first elbow clamp fixedly connected to the side wall of the mounting seat, and the first elbow clamp extends to the side wall of the scale plate.

[0011] As a preferred scheme of the utility model, the calibration assembly further includes a second elbow clamp fixedly connected to the side wall of the fixed plate, and the second elbow clamp extends to the side wall of the moving piece.

[0012] As a preferred scheme of the utility model, the support assembly further includes a limiting plate fixedly installed at the end of the base, and a push rod inserted in the middle of the limiting plate, and the upper end of the push rod is connected to the bottom of the moving piece through bolts.

[0013] As a preferred scheme of the utility model, the support assembly further includes a lead screw threadedly connected to the lower end of the push rod, and the end of the lead screw is connected to the side wall of the base through a bearing.

[0014] As a preferred scheme of the utility model, the support assembly further includes a rotating disc fixedly connected to the side wall of the lead screw, and the rotating disc is installed on the inner side of the base.

[0015] Compared with the prior art, the displacement sensor calibration device can accurately calibrate the displacement sensor, can adjust the zero point, range and other parameters of the displacement sensor, can control the measurement error in a very small range, can reduce the product unqualified condition caused by the measurement error, can keep the performance of different sensors consistent when the displacement sensors are produced in batches, can adjust the key performance indicators (such as linearity, sensitivity, etc.) of the sensors to a similar level by using the calibration device. In this way, in the actual production process, the sensor fixing plate or the auxiliary installation part added at the end of the fixing plate can be replaced to fix the sensor, calibrate and test the displacement sensor, and the calibration device can help the technical personnel quickly find problems when the displacement sensor fails. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor. Among them:

[0017] Figure 1 It is one of the overall structure schematic diagram of the utility model;

[0018] Figure 2 It is the second overall structure schematic diagram of the utility model;

[0019] Figure 3 It is the overhead structure schematic view of the utility model.

[0020] Figure 4 It is the bottom structure schematic view of the utility model.

[0021] In the drawing: 100, support assembly; 101, base; 102, moving piece; 103, support piece; 104, limiting plate; 105, push rod; 106, screw rod; 107, rotary disc; 200, calibration assembly; 201, fixed plate; 202, mounting seat; 203, positioning rod; 204, pointer; 205, scale plate; 206, first elbow clamp; 207, second elbow clamp. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purpose, features and advantages of the utility model more apparent and easy to understand, the specific embodiments of the utility model are described in detail below with the drawings of the specification.

[0023] In the following description, a lot of specific details are set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways different from the description, and those skilled in the art can make similar generalization without departing from the connotation of the utility model, therefore the utility model is not limited by the specific embodiments disclosed below.

[0024] Secondly, the "one embodiment" or "embodiment" referred to here means that specific features, structures or characteristics can be included in at least one implementation of the utility model. In this specification, "in one embodiment" does not mean the same embodiment, nor is it an independent or alternative embodiment that excludes other embodiments.

[0025] EMBODIMENT

[0026] REFERENCE Figures 1-4 For the embodiment of the utility model, the embodiment provides a displacement sensor calibration device, which comprises,

[0027] The support assembly 100 comprises a base 101, a moving piece 102 slidingly installed on the upper end of the base 101, and a support piece 103 slidingly installed on the upper end of the moving piece 102.

[0028] The calibration assembly 200 comprises a fixed plate 201 fixedly connected to the end of the support piece 103, a mounting seat 202 slidingly connected to the side wall of the base 101, and a positioning rod 203 clamped in the middle of the mounting seat 202, wherein the positioning rod 203 is installed below the fixed plate 201.

[0029] The support assembly 100 is used to install the calibration assembly 200, the support 103 is used to butt against the fixed plate 201, the end of the fixed plate 201 is used to install the sensor to be calibrated, the position of the moving part 102 is adjusted along the base 101, and the position of the support 103 is adjusted along the moving part 102, so that the position of the sensor to be calibrated can be adjusted, the positioning rod 203 between the probe of the sensor and the mounting seat 202 is aligned, the calibration of sensors of different specifications is facilitated, adjustment is convenient, and meanwhile the mounting seat 202 can be moved to adjust the height on the side wall of the base 101, further facilitating the calibration of the sensor and convenient adjustment.

[0030] Specifically, the calibration assembly 200 further comprises a pointer 204 installed on the side wall of the mounting seat 202, and a scale plate 205 fixedly connected to the side wall of the base 101, and the end of the pointer 204 is in sliding contact with the side wall of the scale plate 205.

[0031] The pointer 204 is added on the side wall of the mounting seat 202, the height of the mounting seat 202 is observed through the scale plate 205 installed on the side wall of the base 101, the height of the mounting seat 202 is conveniently and accurately adjusted, meanwhile, the upper end side wall of the base 101 and the side wall of the moving part 102 can also be provided with matching scale plates 205 according to requirements for use in cooperation, and the position of the calibration device can be accurately adjusted.

[0032] Further, the calibration assembly 200 further comprises a first elbow clamp 206 fixedly connected to the side wall of the mounting seat 202, and the end of the first elbow clamp 206 extends to the side wall of the scale plate 205.

[0033] The first elbow clamp 206 is added to fix the mounting seat 202 to the side wall of the base 101 after adjustment is completed, so that the position of the mounting seat 202 is maintained stable and the mounting seat 202 is prevented from loosening.

[0034] Still further, the calibration assembly 200 further comprises a second elbow clamp 207 fixedly connected to the side wall of the fixed plate 201, and the end of the second elbow clamp 207 extends to the side wall of the moving part 102.

[0035] The second elbow clamp 207 is added to connect with the fixed plate 201, so that the fixed plate 201 is fixed to the side wall of the moving part 102, the distance of the fixed plate 201 is maintained stable, and the sensors are prevented from colliding or interfering with each other during calibration testing.

[0036] Preferably, the support assembly 100 further comprises a limiting plate 104 fixedly installed at the end of the base 101, and a push rod 105 inserted in the middle of the limiting plate 104, and the upper end of the push rod 105 is connected to the bottom of the moving part 102 through a bolt.

[0037] The limiting plate 104 is used for limiting the movement of the moving piece 102 by cooperating with the push rod 105 at the bottom of the moving piece 102, so that the moving piece 102 can only move in the middle region between the base 101 and the limiting plate 104, and the moving piece 102 is prevented from loosening.

[0038] It should be noted that the support assembly 100 further comprises a lead screw 106 threadedly connected to the lower end of the push rod 105, and the end of the lead screw 106 is connected to the side wall of the base 101 through a bearing.

[0039] The lead screw 106 is connected to the side wall of the base 101, and rotating the lead screw 106 can drive the push rod 105 to move on the basis of the installation provided by the base 101, so as to adjust the position of the moving piece 102 to adapt to different use requirements.

[0040] Preferably, the support assembly 100 further comprises a rotating disc 107 fixedly connected to the side wall of the lead screw 106, and the rotating disc 107 is installed on the inner side of the base 101.

[0041] The rotating disc 107 is added to the side wall of the lead screw 106, which facilitates manual rotation or driving of the lead screw 106 by a driving device to adjust the position of the push rod 105, so that the position can be adjusted more accurately.

[0042] In use, the sensor to be calibrated is installed in the middle of the mounting hole corresponding to the end of the fixed plate 201, the lead screw 106 is driven to rotate by the rotating disc 107, the moving piece 102 is driven to move along the base 101 by the push rod 105, then the position of the support piece 103 is adjusted along the moving piece 102, so that the position of the sensor to be calibrated can be adjusted, the probe of the sensor is aligned with the positioning rod 203 in the mounting seat 202, and the mounting seat 202 can move and adjust the height on the side wall of the base 101, and after the adjustment is completed, the mounting seat 202 is fixed on the side wall of the base 101 by the first elbow clamp 206.

[0043] In summary, the displacement sensor calibration device can accurately calibrate the displacement sensor, can adjust the zero point, range and other parameters of the displacement sensor, so that the measurement error is controlled in a very small range, and the product unqualified condition caused by the measurement error is reduced. When the displacement sensors are produced in batches, the calibration device can keep the performance of different sensors consistent, and by using the calibration device, the key performance indicators (such as linearity and sensitivity) of these sensors can be adjusted to a similar level. In this way, in actual application, the user can conveniently replace the sensor without worrying about the influence on the whole system caused by the too large performance difference of the sensor. When the displacement sensor fails, the calibration device can help the technician to quickly find the problem.

[0044] It is important to note that the construction and arrangements of the application shown in the various exemplary embodiments are illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications can be made to the embodiments without departing from the novel teachings and advantages of the subject matter described herein (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, locations, and the like). For example, the elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of elements or positions can be modified or changed. Thus, all such modifications are intended to be included within the scope of the present inventive subject matter. The order or sequence of any process or method steps can be varied or re-sequenced without departing from the subject matter described herein. Any "open / closed" claims are intended to encompass the structure described herein, and not just the structure equivalent, but also the equivalent structure. Other substitutions, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventive subject matter. Accordingly, the present inventive subject matter is not limited to particular embodiments described, but extends to various modifications that nevertheless fall within the scope of the appended claims.

[0045] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of an actual implementation can be described (i.e., those pertaining to the

[0046] It is understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions can be made. Such development efforts can be complex and time-consuming, but would be a routine undertaking for those of ordinary skill in the art having the benefit of this disclosure.

[0047] It should be noted that the above-mentioned embodiments are only used to illustrate the technical solutions of the present application but not to limit the present application, and although the present application is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalent replaced without departing from the spirit and scope of the present application, and all should be included in the scope of the claims of the present application.

Claims

1. A displacement sensor calibration apparatus, characterized by: The utility model relates to a support assembly (100) and calibration assembly (200), support assembly (100) including base (101), slidingly installed on the upper end of mobile piece (102) of base (101), slidingly installed on the upper end of support piece (103) of mobile piece (102), Calibration assembly (200) including fixedly connected in the end of support piece (103) fixed plate (201), slidingly connected in the side wall of base (101) mounting seat (202), and the positioning rod (203) of clamping in the middle of mounting seat (202), the positioning rod (203) is installed below fixed plate (201). The calibration assembly (200) further includes a pointer (204) installed on the side wall of the mounting seat (202), and a scale plate (205) fixedly connected to the side wall of the base (101), the end of the pointer (204) is in sliding contact with the side wall of the scale plate (205).

2. A displacement sensor calibration device according to claim 1, characterised in that: The calibration assembly (200) further includes a first elbow clamp (206) fixedly connected to the side wall of the mounting seat (202), the first elbow clamp (206) extends to the side wall of the scale plate (205).

3. A displacement sensor calibration apparatus according to claim 2, characterised in that: The calibration assembly (200) further includes a second elbow clamp (207) fixedly connected to the side wall of the fixed plate (201), the second elbow clamp (207) extends to the side wall of the mobile piece (102).

4. A displacement sensor calibration device according to claim 3, characterised in that: The support assembly (100) further includes a limiting plate (104) fixedly installed on the end of the base (101), and a push rod (105) inserted in the middle of the limiting plate (104), the upper end of the push rod (105) is connected to the bottom of the mobile piece (102) by bolts.

5. A displacement sensor calibration device according to claim 4, characterised in that: The support assembly (100) further includes a lead screw (106) screw-connected to the lower end of the push rod (105), the end of the lead screw (106) is connected to the side wall of the base (101) by a bearing.

6. A displacement sensor calibration device according to claim 5, characterised in that: The support assembly (100) further includes a turntable (107) fixedly connected to the side wall of the lead screw (106), the turntable (107) is installed on the inner side of the base (101).

7. A displacement sensor calibration device according to claim 6, characterised in that: ​

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