Sensor contact detection device

Abstract

The utility model discloses a sensor contact detection device which comprises an operation table, a positioning clamp used for fixing a sensor to be detected is arranged on the operation table through a lifting mechanism, and a dial indicator is arranged relative to a clamping position of the positioning clamp. In an inspection state, the lifting mechanism can cooperate with the positioning clamp to limit the contact of the sensor to be detected on the axis where the measuring rod of the dial indicator is located so as to ensure that the measuring rod of the dial indicator abuts against the contact of the sensor to be detected in the axial direction, and therefore the inspection reading of the contact of the sensor to be detected is accurately obtained. The utility model aims to provide the sensor contact detection device which can assist manual calibration of the relative position of the dial indicator measuring rod and the sensor contact to be detected and ensure that the dial indicator measuring rod and the sensor contact are located on the same axis, so that accurate and reliable detection readings are obtained after the measuring rod abuts against the contact, detection errors are reduced, and the detection efficiency is improved. And error detection accidents are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of testing instruments, in particular to a sensor contact detection device. Background Art

[0002] A sensor is a data acquisition device that senses the information being measured and transforms it into an electrical signal or other desired form of information output according to a specific pattern, meeting requirements for information transmission, processing, storage, display, recording, and control. Sensors are characterized by miniaturization, digitization, intelligence, multifunctionality, systematization, and networking. They are the primary link in achieving automatic detection and control. The existence and development of sensors have endowed objects with senses such as touch, taste, and smell, bringing them to life. They are generally classified into ten categories based on their basic sensing functions: thermal sensors, light sensors, gas sensors, force sensors, magnetic sensors, humidity sensors, acoustic sensors, radiation sensors, color sensors, and taste sensors.

[0003] At present, in order to ensure the quality of finished sensor products, finished sensors after assembly generally need to be inspected before they can enter the market. However, the existing mainstream inspection method still relies on manual operation without the assistance of relevant equipment. During the inspection process, manual hand-held calibration of the relative position of the sensor contacts and the micrometer probe is required, resulting in low efficiency. At the same time, since the sensor contacts and the micrometer probe are only visually calibrated by workers, they are greatly affected by subjective factors such as workers' skills and experience, which can easily cause inspection errors and frequent misinspection accidents. Utility Model Content

[0004] The purpose of the utility model is to provide a sensor contact detection device, which can assist in manually calibrating the relative position of the dial indicator rod and the sensor contact to be tested, ensuring that the dial indicator rod and the sensor contact are on the same axis, so as to obtain accurate and reliable test readings after the rod touches the contact, thereby reducing test errors and preventing false detection accidents.

[0005] In order to achieve the above purpose, the specific technical solutions adopted by this utility model are as follows:

[0006] A sensor contact detection device, the key of which is that it includes an operating table, on which a positioning fixture for fixing the sensor to be tested is provided through a lifting mechanism, and a dial indicator is provided relative to the clamping position of the positioning fixture; in the inspection state, the lifting mechanism can cooperate with the positioning fixture to limit the contact of the sensor to be tested to the axis where the dial indicator measuring rod is located, so as to ensure that the dial indicator measuring rod and the contact of the sensor to be tested are axially opposed, thereby accurately obtaining the inspection reading of the contact of the sensor to be tested.

[0007] Furthermore, the lifting mechanism includes a vertically downward lifting cylinder, the cylinder body of the lifting cylinder is restricted on the operating table, the telescopic rod of the lifting cylinder is connected to a movable plate, and the positioning fixture is provided on the movable plate.

[0008] Furthermore, the positioning fixture includes two support rods arranged opposite to each other on the left and right sides of the movable plate. The upper end of each support rod passes upward through the operating table and is rotatably connected to a clamping block. When the left and right clamping blocks rotate toward each other, they can respectively act on the left and right side walls of the sensor to be tested in the clamping position to achieve clamping positioning of the sensor to be tested.

[0009] Furthermore, wedge surfaces are respectively provided at the front ends of the left and right clamping blocks relative to the left and right side walls of the sensor to be tested.

[0010] Furthermore, a limiting hole is respectively provided on the left and right clamping blocks, and elastic limiting columns are respectively provided on the operating table through left and right bosses. The left and right limiting columns are respectively adapted to the limiting holes on the corresponding side to limit the rotation position of the clamping block on the corresponding side.

[0011] Furthermore, a support base is provided on the operating table, and an assembly hole for axial extension and retraction of the micrometer measuring rod is provided on the support base.

[0012] Furthermore, an axial extension rod is detachably mounted on the end of the measuring rod.

[0013] Furthermore, it also includes a base, on which the operating platform is arranged through two left and right supporting uprights, and the lifting cylinder is arranged between the left and right supporting uprights.

[0014] Compared with the prior art, the present invention has the following significant effects:

[0015] Since the micrometer is limited to moving only along the axial direction of its measuring rod, and the positioning fixture can limit the contacts of the sensor to be tested to the axis of the micrometer measuring rod with the cooperation of the lifting mechanism, it can assist in manual calibration of the relative position of the micrometer measuring rod and the contacts of the sensor to be tested, ensuring that the micrometer measuring rod and the sensor to be tested are axially aligned during the detection process to obtain accurate and reliable test readings, which is conducive to improving inspection efficiency and reducing inspection errors, thereby preventing the occurrence of false detection accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0017] Figure 1 Schematic diagram of the overall structure of the sensor contact detection device in Example 1 (I);

[0018] Figure 2 Schematic diagram of the overall structure of the sensor contact detection device in Example 1 (II);

[0019] Figure 3 Schematic diagram of the overall structure of the sensor contact detection device in Example 1 (3);

[0020] Figure 4 This is a three-dimensional diagram (1) of the sensor contact detection device in the test state in Example 1;

[0021] Figure 5 This is a perspective view (2) of the sensor contact detection device in the test state in Example 1;

[0022] Figure 6 This is a three-dimensional diagram of the sensor contact detection device in the test state in Example 1 (3);

[0023] Markings in the figure: 1-operating table, 2-lifting mechanism, 3-positioning fixture, 4-micrometer, 401-measuring rod, 201-lifting cylinder, 202-movable plate, 301-support rod, 302-clamping block, 303-wedge surface, 304-limiting hole, 5-boss, 6-elastic limiting column, 7-support seat, 8-assembly hole, 402-axial extension rod, 9-base, 10-support vertical plate, 11-sensor to be tested, 1101-contact. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, a detailed description will be given below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0025] In the description of the present invention, it should be understood that the terms "length," "width," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, in the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0026] Figure 1The first embodiment of the present utility model is shown: a sensor contact detection device, including an operating table 1, on which a positioning fixture 3 for fixing the sensor to be tested 11 is provided through a lifting mechanism 2, and a micrometer 4 is provided at the clamping position relative to the positioning fixture 3; in the inspection state, the lifting mechanism 2 can cooperate with the positioning fixture 3 to limit the contact 1101 of the sensor to be tested 11 to the axis where the measuring rod 401 of the micrometer 4 is located, so as to ensure that the measuring rod 401 of the micrometer 4 is axially opposed to the contact 1101 of the sensor to be tested 11, thereby accurately obtaining the inspection reading of the contact 1101 of the sensor to be tested 11.

[0027] like Figure 2 and Figure 3 As shown, in this embodiment, the lifting mechanism 2 includes a vertically downward lifting cylinder 201. The cylinder body of the lifting cylinder 201 is restrained on the operating platform 1. The telescopic rod of the lifting cylinder 201 is connected to a movable plate 202, and the positioning fixture 3 is disposed on the movable plate 202. When the telescopic rod of the lifting cylinder 201 is extended, the positioning fixture 3 is driven downward. When the telescopic rod of the lifting cylinder 201 is shortened, the positioning fixture 3 is driven upward. In other words, the height of the positioning fixture 3 can be adjusted by controlling the extension length of the telescopic rod of the lifting cylinder 201.

[0028] Please refer to 4 to Figure 6 In a specific implementation, the positioning fixture 3 includes two support rods 301 disposed opposite each other on the movable plate 202. The upper end of each support rod 301 extends upward through the operating platform 1 and is rotatably connected to a clamping block 302. When the left and right clamping blocks 302 rotate toward each other, they can respectively act on the left and right side walls of the sensor under test 11 in the clamping position to clamp and position the sensor under test 11. Preferably, to ensure that the clamping blocks 302 gradually press against the sensor under test 11 during rotation, wedge surfaces 303 are respectively provided at the front ends of the left and right clamping blocks 302 relative to the left and right side walls of the sensor under test 11. Specifically, in order to facilitate workers to correct the fixed position of the sensor 11 to be tested through the positioning fixture 3, a limit hole 304 is respectively provided on the left and right clamping blocks 302. The operating table 1 is also provided with elastic limit columns 6 through the left and right bosses 5. The left and right limit columns are respectively adapted to the limit holes 304 on the corresponding side to limit the rotation position of the clamping block 302 on the corresponding side. Preferably, the left and right bosses 5 are both located between the left and right clamping blocks 302, and the reserved gap between the left and right bosses 5 serves as the clamping position of the positioning fixture 3. In order to limit the movement direction of the measuring rod 401 of the micrometer 4, a support base 7 is also provided on the operating table 1, and the support base 7 is provided with an assembly hole 8 for the micrometer.

[0029] like Figure 6 As shown, considering that the axial movement range of the measuring rod 401 of the micrometer 4 is limited, when the distance between the contact 1101 of the sensor 11 to be measured and the measuring rod 401 of the micrometer 4 is large so that the two cannot offset each other, an axial extension rod 402 of a predetermined length can be installed at the end of the measuring rod 401.

[0030] from Figures 1 to 3 It can be seen that in this embodiment, the sensor contact detection device further includes a base 9 , on which the operating platform 1 is provided via two left and right supporting uprights 10 , and between which the lifting cylinder 201 is provided.

[0031] The principle of this utility model is as follows:

[0032] During use, the sensor 11 to be tested is placed in the clamping position between the two clamping blocks 302. The two clamping blocks 302 are then rotated relative to each other. When the corresponding limit posts are engaged in the limit holes 304 of the two clamping blocks 302, the sensor 11 to be tested is secured. The lifting cylinder 201 is then controlled to retract the telescopic rod to raise the sensor 11 to a predetermined height between the two clamping blocks 302. At this point, the contact 1101 of the sensor 11 to be tested and the measuring rod 401 of the dial indicator 4 are coaxial. The dial indicator 4 is then pushed along the axial direction of its measuring rod 401, so that the measuring rod 401 or an axial extension rod attached to the measuring rod 401 contacts the contact 1101, thereby obtaining an accurate and reliable test reading.

[0033] To sum up, since the micrometer 4 is limited to being able to move only along the axial direction of its measuring rod 401, and the positioning fixture 3 can limit the contact 1101 of the sensor to be tested 11 to the axis of the measuring rod 401 of the micrometer 4 with the cooperation of the lifting mechanism 2, it can assist in manual calibration of the relative position of the measuring rod 401 of the micrometer 4 and the contact 1101 of the sensor to be tested 11, ensuring that the measuring rod 401 of the micrometer 4 and the sensor to be tested 11 are axially aligned during the detection process to obtain accurate and reliable test readings, which is conducive to improving inspection efficiency and reducing inspection errors, thereby preventing the occurrence of false detection accidents.

[0034] Finally, it should be noted that the technical solution disclosed above is only a preferred embodiment of the present invention, and of course it cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment are implemented, and equivalent changes made in accordance with the claims of the present invention are still within the scope covered by the utility model.

Claims

1. A sensor contact detection device, characterized in that: It includes an operating table, on which a positioning fixture for fixing the sensor to be tested is provided through a lifting mechanism, and a dial indicator is provided relative to the clamping position of the positioning fixture; in the inspection state, the lifting mechanism can cooperate with the positioning fixture to limit the contact of the sensor to be tested to the axis where the dial indicator measuring rod is located, so as to ensure that the dial indicator measuring rod and the contact of the sensor to be tested are axially opposed, thereby accurately obtaining the inspection reading of the contact of the sensor to be tested.

2. The sensor contact detection device according to claim 1, characterized in that: The lifting mechanism includes a vertically downward lifting cylinder, a cylinder body of the lifting cylinder is restricted on the operating table, a movable plate is connected to the telescopic rod of the lifting cylinder, and the positioning fixture is provided on the movable plate.

3. The sensor contact detection device according to claim 2, wherein: The positioning fixture includes two support rods arranged opposite to each other on the left and right sides of the movable plate. The upper end of each support rod passes through the operating table upward and is rotatably connected to a clamping block. When the left and right clamping blocks rotate toward each other, they can respectively act on the left and right side walls of the sensor to be tested in the clamping position to achieve clamping positioning of the sensor to be tested.

4. The sensor contact detection device according to claim 3, wherein: Wedge surfaces are respectively provided at the front ends of the left and right clamping blocks relative to the left and right side walls of the sensor to be tested.

5. The sensor contact detection device according to claim 4, characterized in that: A limiting hole is respectively provided on the left and right clamping blocks, and elastic limiting columns are respectively provided on the operating table through left and right bosses. The left and right limiting columns are respectively adapted to the limiting holes on the corresponding side to limit the rotation position of the clamping block on the corresponding side.

6. The sensor contact detection device according to any one of claims 1 to 5, characterized in that: A support base is also provided on the operating table, and an assembly hole for the dial indicator is provided on the support base.

7. The sensor contact detection device according to claim 5, characterized in that: An axial extension rod is detachably mounted on the end of the measuring rod.

8. The sensor contact detection device according to claim 5 or 7, characterized in that: It also includes a base, on which the operating platform is arranged via two left and right supporting uprights, and the lifting cylinder is arranged between the left and right supporting uprights.

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