Tool for testing service life of linear displacement sensor

By designing a fixture for life testing of linear displacement sensors that includes a base plate, movable groove, limit support, and fastening mechanism, the problems of low sensor testing efficiency and inconvenient fixation in traditional devices are solved. This enables simultaneous detection and stable fixation of multiple sensors, improving testing efficiency and the tensile and push resistance of the sensors.

CN223925723UActive Publication Date: 2026-02-17HUNAN AUERBO AUTOMATION TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520730037.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-17
Publication Date
2026-02-17
Estimated Expiration
2035-04-17

AI Technical Summary

Technical Problem

Traditional linear displacement sensor life testing devices can only test one sensor at a time, resulting in low testing efficiency and the fixing method is not convenient for simultaneous testing of multiple sensors.

Method used

A fixture for testing the lifespan of a linear displacement sensor was designed, comprising a base plate, a movable groove, a limiting support mechanism, and a fastening mechanism. By arraying movable grooves on the right side of the base plate and placing a liftable limiting support mechanism within the movable grooves, multiple sensors can be clamped simultaneously, and the sensors are further limited and fixed by the fastening mechanism.

Benefits of technology

Simultaneous detection by multiple sensors is achieved, improving testing efficiency. The sensor's tensile and lateral resistance and stability are enhanced through limiting supports and fastening mechanisms, preventing the detection results from being affected.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223925723U_ABST
    Figure CN223925723U_ABST
Patent Text Reader

Abstract

The utility model is suitable for the technical field of sensor detection, and provides a tool for testing the service life of a linear displacement sensor. A bottom plate; the movable grooves are formed in the right side of the bottom plate in an array manner; the sensor body is placed in the movable groove; the limiting and supporting mechanism is arranged in the movable groove and is used for clamping and fixing the sensor body; and the fastening mechanism is movably arranged at the top of the limiting and supporting mechanism and is used for carrying out secondary limiting on the sensor body. Compared with the prior art, the beneficial effects of the utility model are that when in use, the movable grooves are arranged on the right side of the bottom plate in an array manner, and the liftable limiting support mechanisms are arranged in the movable grooves, so that a plurality of sensor bodies can be placed and clamped at one time, and the plurality of sensor bodies can be detected at the same time; moreover, the sensor can be adjusted according to the size of the sensor body, and is convenient to dismount and replace.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model belongs to sensor detection technical field especially relates to a linear displacement sensor life test frock. BACKGROUND

[0002] The main role of linear displacement sensor is to convert linear mechanical displacement into electrical signal to determine the distance of object movement.

[0003] In order to verify the reliability of linear displacement sensor, life test is needed before delivery, and the linear displacement sensor needs to be tested by life test device due to the requirement of too many times of sliding life, and the traditional linear displacement sensor life test device is generally a device with linear motion output shaft, when using the device, in order to ensure the preparation and safety of test, only one linear displacement sensor can be tested at the same time, the test efficiency is low, and the device cannot meet the demand of high-efficiency batch test, and when fixing, bolts are used for fixing, but this fixing mode is not convenient when detecting multiple sensors at the same time.

[0004] Therefore, how to provide a linear displacement sensor life test frock is a problem to be solved by the person skilled in the art. INVENTION CONTENTS

[0005] The utility model aims at providing a linear displacement sensor life test frock, and aims at solving the problems mentioned in the background art.

[0006] The utility model is realized in this way, a linear displacement sensor life test frock, including;

[0007] Bottom plate;

[0008] Movable slot, movable slot array is set up in the right side of bottom plate;

[0009] Sensor body, the sensor body is placed in the inside of movable slot;

[0010] Limit support mechanism, the limit support mechanism is arranged in the inside of movable slot, and the sensor body is clamped and fixed;

[0011] Fastening mechanism, the fastening mechanism is movably arranged at the top of limit support mechanism, and the sensor body is secondly limited.

[0012] Preferably, the fastening mechanism comprises a receiving groove, a reset rotating rod, a movable clamp block and a clamping groove, the receiving groove and the clamping groove are symmetrically arranged on the left and right sides of the top of the limiting support mechanism, the reset rotating rod is movably installed in the middle of the receiving groove, and a fastening belt is movably installed on the surface of the reset rotating rod, one end of the fastening belt penetrates through the surface of the receiving groove and is movably placed in the clamping groove, the movable clamp block is movably hinged on the front side of the clamping groove, and a limiting block is slidably installed on the right end of the front side of the top of the limiting support mechanism and movably connected with the movable clamp block.

[0013] Preferably, the limiting clamping structure comprises a lifting rod, a lifting frame, a first clamping plate, a spring and a top plate, the lifting rods are arrayed on the front and back sides of the movable slot, the lifting frame is movably installed on the surface of the lifting rod, a guide rod is fixedly installed in the middle of the lifting frame, the first clamping plates are symmetrically inserted into the surface of the guide rod, the spring is sleeved on the surface of the guide rod and movably abuts against the inner side of the first clamping plate, and the top plate is fixedly installed on the top of the lifting frame and penetrates through the upper end of the first clamping plate.

[0014] Preferably, the top of the left side of the bottom plate is arrayed with a telescopic rod, the inner side of the movable end of the telescopic rod is fixedly installed with a positioning block, and the upper and lower sides of the positioning block are provided with second clamping plates for clamping the movable end of the sensor body, and a fixing bolt is arranged between the second clamping plates on the upper and lower sides.

[0015] Preferably, the second clamping plate is fixedly installed at the bottom of the positioning block, and the second clamping plate is movably installed at the top of the positioning block.

[0016] Preferably, the second clamping plate is an L-shaped plate, and the second clamping plates on the upper and lower sides are oppositely arranged.

[0017] Preferably, the inner side of the first clamping plate and the top of the top plate adjacent to the first clamping plate are provided with rubber blocks and movably abut against the side surface and the bottom of the sensor body.

[0018] Compared with the prior art, the sensor body clamping device has the advantages that: when in use, the movable slot is arrayed on the right side of the bottom plate, and the limiting support mechanism that can be lifted is placed in the movable slot, so that multiple sensor bodies can be placed and clamped at one time, multiple sensor bodies can be simultaneously detected, the size of the sensor body can be adjusted, and the sensor body can be conveniently disassembled and replaced.

[0019] The fastening mechanism is arranged on the top of the limiting support mechanism, so that the upper end of the sensor body can be reinforced during use, the tensile resistance and stability of the sensor body are improved, and the sensor body is not easily moved during subsequent experiments, so that the detection result is not affected. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings are used to provide further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation to the present application. In the drawings:

[0021] Figure 1 A schematic diagram of an overall appearance structure of a tool for life test of a linear displacement sensor provided by an embodiment of the present application is shown in the figure;

[0022] Figure 2 A schematic diagram of a right view partial structure of a tool for life test of a linear displacement sensor provided by an embodiment of the present application is shown in the figure;

[0023] Figure 3 A schematic diagram of a right view left end partial cross-sectional structure of a tool for life test of a linear displacement sensor provided by an embodiment of the present application is shown in the figure;

[0024] Figure 4 A schematic diagram of a back view cross-sectional structure of a tool for life test of a linear displacement sensor provided by an embodiment of the present application is shown in the figure;

[0025] Figure 5 A schematic diagram of an enlarged structure of part A of a tool for life test of a linear displacement sensor provided by an embodiment of the present application is shown in the figure. Figure 4

[0026] In the figure: 1 - bottom plate, 2 - movable groove, 3 - lifting rod, 4 - lifting frame, 5 - guide rod, 6 - spring, 7 - first clamping plate, 8 - fastening belt, 9 - sensor body, 10 - storage groove, 11 - reset rotating rod, 12 - clamping groove, 13 - movable clamping block, 14 - limiting sliding block, 15 - telescopic rod, 16 - positioning block, 17 - second clamping plate, 18 - fixing bolt, 19 - top plate. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the present application more clear and understandable, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and do not limit the present application.

[0028] The specific implementation of the present application is described in detail below in combination with specific embodiments.

[0029] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , a schematic diagram of a structure of a tool for life test of a linear displacement sensor provided by an embodiment of the present application is shown, comprising;

[0030] ​The bottom plate 1;

[0031] The movable slot 2 is arranged on the right side of the bottom plate 1.

[0032] The sensor body 9 is placed in the movable slot 2.

[0033] The limiting support mechanism is arranged in the movable slot 2 and clamps and fixes the sensor body 9.

[0034] The fastening mechanism is movably arranged on the top of the limiting support mechanism and secondarily limits the sensor body 9.

[0035] In the embodiment of the utility model, when in use, the sensor body 9 is placed on the limiting support mechanism in the movable slot 2, and then is secondarily fixed by the fastening mechanism.

[0036] The movable slot 2 is arranged on the right side of the bottom plate 1, and the liftable limiting support mechanism is placed in the movable slot 2, so that multiple sensor bodies 9 can be clamped at a time, and multiple sensor bodies 9 can be simultaneously detected, and the size of the sensor body 9 can be adjusted and conveniently disassembled and replaced.

[0037] As shown in Figure 1 , Figure 2 and Figure 3 , as a preferred embodiment of the utility model, the fastening mechanism comprises a receiving groove 10, a reset rotary rod 11, a movable clamp block 13 and a clamping groove 12, the receiving groove 10 and the clamping groove 12 are symmetrically arranged on the left and right sides of the top of the limiting support mechanism, the reset rotary rod 11 is movably installed in the middle of the receiving groove 10, and a fastening belt 8 is movably installed on the surface of the reset rotary rod 11, the other end of the fastening belt 8 penetrates the surface of the receiving groove 10, is movably placed in the clamping groove 12, the movable clamp block 13 is movably hinged on the front side of the clamping groove 12, a limiting sliding block 14 is slidably installed on the right end of the front side of the top of the limiting support mechanism, and is movably inserted with the movable clamp block 13.

[0038] In the embodiment of the utility model, when in use, the fastening belt 8 is pulled out from the reset rotary rod 11, then is engaged with the clamping groove 12, then the movable clamp block 13 is moved to extrude the right end of the fastening belt 8, then the limiting sliding block 14 is slid to fix the position of the movable clamp block 13, then the fastening belt 8 is partially rolled back under the action of the reset rotary rod 11, so that the fastening belt 8 fixes the upper end of the sensor body 9, thereby enhancing the tensile resistance of the sensor body 9.

[0039] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, as a preferred embodiment of the utility model, the limiting and clamping structure comprises a lifting rod 3, a lifting frame 4, a first clamping plate 7, a spring 6 and a top plate 19, the lifting rod 3 is installed on the front and rear sides of the movable groove 2, the lifting frame 4 is movably installed on the surface of the lifting rod 3, the middle part of the lifting frame 4 is fixedly installed with a guide rod 5, the first clamping plate 7 is symmetrically inserted on the surface of the guide rod 5, the spring 6 is sleeved on the surface of the guide rod 5 and movably abuts against the inner side of the first clamping plate 7, the top plate 19 is fixedly installed on the top of the lifting frame 4 and penetrates the upper end of the first clamping plate 7, the sensor body 9 is placed on the top of the first clamping plate 7, and the fastening mechanism is arranged on the top of the first clamping plate 7.

[0040] In the embodiment of the utility model, when using, the first clamping plate 7 is separated to both sides, then the sensor body 9 is placed on the top plate 19 on the top of the lifting frame 4, and the movable end is placed above the lower second clamping plate 17 and abuts against the positioning block 16, then the first clamping plate 7 is loosened, then under the action of the spring 6 on the guide rod 5, the first clamping plate 7 is close to the middle, then the sensor body 9 is clamped and positioned;

[0041] Through the setting of the lifting rod 3, the lifting frame 4 can be lifted in the movable groove 2, then the movable end of the sensor body 9 corresponds to the telescopic rod 15, and the stretching detection is facilitated.

[0042] As shown in Figure 1 , Figure 2 and Figure 4 , as a preferred embodiment of the utility model, the top of the left side of the bottom plate 1 is arrayed with a telescopic rod 15, the inner side of the movable end of the telescopic rod 15 is fixedly installed with a positioning block 16, the upper and lower sides of the positioning block 16 are provided with a second clamping plate 17, the movable end of the sensor body 9 is clamped, and the fixed bolt 18 is arranged between the upper and lower second clamping plates 17.

[0043] In the embodiment of the utility model, when using, the movable end of the sensor body 9 is placed on the lower second clamping plate 17, then the upper second clamping plate 17 is fixed on the positioning block 16 by the fixed bolt 18, then the movable end of the sensor body 9 is clamped, then the telescopic rod 15 is started to repeatedly stretch and retract, then the sensor body 9 is driven to stretch and retract, so that the service life is detected.

[0044] As shown in Figure 1 , Figure 2 and Figure 4 , as a preferred embodiment of the utility model, the lower end second clamping plate 17 is fixedly installed on the bottom of the positioning block 16, and the upper end second clamping plate 17 is movably installed on the top of the positioning block 16.

[0045] In the embodiment of the utility model, when using, through fixedly installing the lower end second clamping plate 17 at the bottom of the positioning block 16, then movably installing the upper end second clamping plate 17 at the top of the positioning block 16, thereby convenient to separate, take down and place the sensor body 9.

[0046] As Figure 1 , Figure 2 and Figure 4 Indicated, as a preferred embodiment of the utility model, the second clamping plate 17 adopts L-shaped plate, and the upper and lower two sides second clamping plate 17 are oppositely arranged.

[0047] In the embodiment of the utility model, when using, through the second clamping plate 17 adopts L-shaped plate, and the upper and lower two sides second clamping plate 17 are oppositely arranged, thereby conveniently control sensor body 9 is drawn to stretch.

[0048] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 Indicated, as a preferred embodiment of the utility model, the inner side of adjacent first clamping plate 7 and the top of top plate 19 are provided with rubber block, and with the side and bottom of sensor body 9 movable abutment.

[0049] In the embodiment of the utility model, when using, through the inner side of adjacent first clamping plate 7 and the top of top plate 19 are provided with rubber block, and with the side and bottom of sensor body 9 movable abutment, thereby reducing the damage to the surface of sensor body 9, and increasing the friction force of its surface.

[0050] The utility model provides a kind of tooling for linear displacement sensor life test in the above embodiment of the utility model, when using, first clamping plate 7 is separated to both sides, then sensor body 9 is placed on the top plate 19 of the top of lifting frame 4, and its movable end is placed above the lower end second clamping plate 17, and is in abutment with positioning block 16;

[0051] Then loosen first clamping plate 7, then under the action of spring 6 on guide rod 5, first clamping plate 7 is close to middle, then sensor body 9 is clamped and positioned, then start lifting rod 3, so that lifting frame 4 is lifted in movable slot 2, then the movable end of sensor body 9 corresponds with telescopic rod 15;

[0052] Then the fastening belt 8 is pulled out from the reset rotating rod 11, then is engaged with the clamping groove 12, then the movable clamping block 13 extrudes the right end of the fastening belt 8, then the sliding limiting sliding block 14 fixes the position of the movable clamping block 13, then under the action of the reset rotating rod 11, the fastening belt 8 is partially rolled back, then the fastening belt 8 fixes the upper end of the sensor body 9, thereby enhancing the tensile resistance of the sensor body 9;

[0053] Then the upper second clamping plate 17 is fixed on the positioning block 16 by the fixing bolt 18, thereby clamping the movable end of the sensor body 9, then the telescopic rod 15 is repeatedly stretched and contracted, thereby driving the sensor body 9 to stretch and contract, thereby detecting the service life thereof.

[0054] The above only describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A jig for linear displacement sensor life test, characterized by, Include; The bottom plate (1); The movable groove (2) is arrayed on the right side of the bottom plate (1); Sensor body (9), the sensor body (9) is placed inside the movable groove (2); Limiting support mechanism, the limiting support mechanism is arranged inside the movable groove (2), and the sensor body (9) is clamped and fixed; Fastening mechanism, the fastening mechanism is movably arranged on the top of the limiting support mechanism, and the sensor body (9) is secondly limited.

2. The straight line displacement sensor life test fixture of claim 1, wherein, The fastening mechanism comprises a receiving groove (10), a reset rotary rod (11), a movable clamp block (13) and a clamping groove (12), the receiving groove (10) and the clamping groove (12) are symmetrically arranged on the left and right sides of the top of the limiting support mechanism, the reset rotary rod (11) is movably installed in the middle of the receiving groove (10), and a fastening belt (8) is movably installed on the surface of the reset rotary rod (11), the other end of the fastening belt (8) penetrates the surface of the receiving groove (10), is movably placed in the clamping groove (12), the movable clamp block (13) is movably hinged on the front side of the clamping groove (12), and the right end of the front side of the top of the limiting support mechanism is slidably installed with a limiting slide block (14) and is movably inserted with the movable clamp block (13).

3. The straight line displacement sensor life test fixture of claim 1, wherein, The limiting support mechanism comprises a lifting rod (3), a lifting frame (4), a first clamping plate (7), a spring (6) and a top plate (19), the lifting rod (3) is arrayed on the front and back sides of the movable groove (2), the lifting frame (4) is movably installed on the surface of the lifting rod (3), the lifting frame (4) is fixedly installed with a guide rod (5) in the middle, the first clamping plate (7) is symmetrically inserted on the surface of the guide rod (5), the spring (6) is sleeved on the surface of the guide rod (5) and movably abuts against the inner side of the first clamping plate (7), and the top plate (19) is fixedly installed on the top of the lifting frame (4) and penetrates the upper end of the first clamping plate (7).

4. The straight line displacement sensor life test fixture of claim 1, wherein, The top of the left side of the bottom plate (1) is arrayed with a telescopic rod (15), the inner side of the movable end of the telescopic rod (15) is fixedly installed with a positioning block (16), the upper and lower sides of the positioning block (16) are provided with a second clamping plate (17), the movable end of the sensor body (9) is clamped, and the second clamping plates (17) on the upper and lower sides are provided with fixing bolts (18).

5. The straight line displacement sensor life test fixture of claim 4, wherein, The second clamping plate (17) is fixedly installed on the bottom of the positioning block (16), and the second clamping plate (17) is movably installed on the top of the positioning block (16).

6. The straight line displacement sensor life test fixture of claim 4, wherein, The second clamping plate (17) is an L-shaped plate, and the second clamping plates (17) on the upper and lower sides are oppositely arranged.

7. The straight line displacement sensor life test fixture of claim 3, wherein, The inner side of the adjacent first clamping plate (7) and the top of the top plate (19) are provided with rubber blocks and movably abut against the side surface and the bottom of the sensor body (9).