A portable wire displacement sensor test apparatus

Abstract

The utility model provides a portable line displacement sensor test equipment, including base, one side installation horizontal displacement mechanism on the base, install vertical lifting mechanism on the horizontal displacement mechanism, install stator clamp on the vertical lifting mechanism, be equipped with screw hole for fixing the iron core on the stator clamp, the other side fixed mounting of base has first mover clamp, the first mover clamp fixed mounting second mover clamp, second mover clamp is equipped with the placement hole of placing sensor, the utility model discloses can solve the problem that artificial hold test efficiency is low, frock clamp speciality is strong greatly, can realize the test of automatic many kinds of sensors, and is dedicated to realizing the goal of integration and miniaturization. User can use the test system more conveniently in practical work, promote the popularization of sensor technology in more application scenarios.

Description

Technical Field

[0001] This utility model relates to a portable linear displacement sensor testing device. Background Technology

[0002] LVDT (Low Voltage Displacement) sensors, as key displacement measurement devices, are widely used in aerospace, precision manufacturing, and other fields. Currently, existing testing equipment for LVDT sensor debugging and performance parameter measurement is specialized. It primarily utilizes a coaxial connection between the iron core and the sensor body, connecting to the testing equipment to acquire the sensor's output voltage signal for testing. Manual clamping is required during debugging and performance testing. Furthermore, traditional sensor testing equipment typically operates at a dedicated testing station, which generally only supports one specific type of sensor. Moreover, the testing equipment is bulky and inflexible, causing inconvenience to users. Utility Model Content

[0003] This invention proposes a portable linear displacement sensor testing device that is easy to move and highly adaptable, enabling testing in multiple scenarios.

[0004] The technical solution of this utility model is implemented as follows: A portable linear displacement sensor testing device includes a base, a horizontal displacement mechanism mounted on one side of the base, a vertical lifting mechanism mounted on the horizontal displacement mechanism, a stator clamp mounted on the vertical lifting mechanism, and a screw hole for fixing an iron core on the stator clamp; a first mover clamp is fixedly mounted on the other side of the base, and a second mover clamp is fixedly mounted on the first mover clamp, the second mover clamp having a through hole for placing a sensor.

[0005] Preferably, the base has a plurality of threaded mounting holes evenly distributed on it, and the horizontal displacement mechanism and the first moving part clamp are both mounted on the base at a predetermined position by bolts.

[0006] Preferably, the first moving part clamp is in the shape of an "I", with its bottom end mounted on the base by bolts and its top end mounted on the second moving part clamp by bolts.

[0007] Preferably, the second moving clamp includes a mounting base, on which a clamping plate is provided. The placement hole is provided through the clamping plate from front to back. Below the placement hole, an adjustment hole is also provided through the clamping plate from front to back. The top surface of the clamping plate is provided with a slot that extends through the clamping plate from front to back. The slot extends longitudinally through the placement hole and then to the adjustment hole.

[0008] Preferably, locking holes are provided through the left and right sides of the clamping plate, and locking bolts and nuts are threaded through the locking holes.

[0009] Preferably, the mounting base has several fixing holes evenly distributed on both the left and right sides, and the bolts at the top of the first moving part clamp pass through the fixing holes on the left and right sides for fixing.

[0010] Preferably, handles are fixedly installed on the left and right sides of the base.

[0011] The beneficial effects of this invention are as follows: By integrating a power supply, a high-precision electric displacement stage, a lifting platform, a driver, a controller, and universal clamping fixtures through modular design, an integrated testing platform is constructed. This greatly solves the problems of low efficiency in manual clamping testing and the high specialization of tooling fixtures. It enables automated testing of various types of sensors and strives to achieve the goals of integration and miniaturization. Users can more conveniently use the testing system in actual work, promoting the popularization of sensor technology in more application scenarios. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram showing the installation of the first and second moving part clamps of this utility model. Detailed Implementation

[0015] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0016] like Figure 1-2A portable linear displacement sensor testing device is shown, comprising a base 1. A horizontal displacement mechanism 2 is mounted on one side of the base 1, and a vertical lifting mechanism 3 is mounted on the horizontal displacement mechanism 2. A stator clamp 4 is mounted on the vertical lifting mechanism 3. Both the horizontal displacement mechanism 2 and the vertical lifting mechanism 3 are common horizontal and vertical translation mechanisms, and the pneumatic, hydraulic, or electric methods are not limited. The horizontal mechanism 2 drives the vertical lifting mechanism to move horizontally left and right, while the vertical lifting mechanism 3 moves vertically, causing the stator clamp 4 to move vertically. The stator clamp 4 has screw holes for fixing the iron core. A first moving clamp 5 is fixedly mounted on the other side of the base 1, and a second moving clamp 6 is fixedly mounted on the first moving clamp 5. The second moving clamp 6 has a through hole 7 for placing the sensor. In this way, the iron core is moved coaxially with the sensor via the XZ axis, ensuring a precise, stable, and linear proportional relationship between the sensor output voltage signal and the iron core displacement.

[0017] After the sensor and iron core are installed and fixed, an external testing device (signal generation / acquisition device) is connected using a dedicated cable to achieve power supply and output signal acquisition. The controller moves the displacement mechanism and lifting mechanism, driving the iron core to move and determine the electrical zero position of the sensor. Then, the displacement of the controller is returned to zero. By setting the X-axis step button of the manual / automatic driver controller, the iron core is driven to perform reciprocating linear displacement motion, thereby completing the sensor performance test. After the test is completed, the displacement program can be saved for repeated, efficient, and standardized testing.

[0018] In this embodiment, the base 1 has several threaded mounting holes 8 evenly distributed on it. The horizontal displacement mechanism 2 and the first moving part clamp 5 are both bolted to a predetermined position on the base 1, and their installation positions can be adjusted arbitrarily to adapt to testing requirements of different scenarios and different sizes and lengths. Of course, other devices such as power supplies, drivers, controllers, etc., can also be installed in different designated positions or easily disassembled through the threaded mounting holes 8 according to actual conditions. This device adopts a compact structure and lightweight material design. The overall volume of the device is less than 1 / 3 of that of a traditional testing platform, and the test platform size is only 210mm × 297mm. The base 1 is equipped with mounting handles 9 on both sides for easy movement and adaptation to multi-scenario testing.

[0019] In this embodiment, the first moving clamp 5 is in the shape of an "I", with its bottom end installed on the base 1 by bolts and its top end installed with the second moving clamp 6 by bolts; the second moving clamp 6 includes a mounting base 601, on which a plurality of fixing holes 603 are evenly distributed on the left and right sides, and the bolts at the top of the first moving clamp 5 pass through the fixing holes 603 on the left and right sides respectively for fixed installation.

[0020] Before testing, the first "I"-shaped mover clamp 5 is fixed to the corresponding hole in the base with locking screws, providing a stable base for sensor measurement. The second mover clamp 6 is fixed to the first mover clamp 5 with locking bolts and nuts. The hole spacing of the two clamps is consistent, and the front and rear fixing positions of the second mover clamp 6 can be adjusted according to the actual displacement measured by the sensor. The through holes of the second mover clamp 6 can easily fix linear displacement sensor bodies of different sizes, which is versatile and eliminates the need for repeated clamp disassembly after installation, saving measurement time. Before testing, the linear displacement sensor body is fixed in the placement hole 7 of the second mover clamp 6 and locked with bolts and nuts. The matching iron core is fixed to the corresponding hole in the stator clamp with screws.

[0021] To address the issue of inconsistent sensor sizes, a clamping plate 602 is provided on the mounting base 601. A placement hole 7 extends through the clamping plate 602 from front to back. Below the placement hole 7, an adjustment hole 604 extends through the clamping plate 602 from front to back. A slot 605 extends longitudinally through the placement hole 7 and then to the adjustment hole 604 on the top surface of the clamping plate 602 from front to back. Locking holes 606 are provided on both sides of the clamping plate 602, with locking bolts and nuts threaded through them. Because the clamping plate 602 forms a constricted structure on both sides through the slot 605 and the adjustment hole 604, when a sensor is placed in the placement hole 7 (whether slightly larger or smaller), adjusting the tightness of the locking bolts and nuts according to the sensor size can accommodate different locking scenarios.

[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A portable linear displacement sensor testing device, characterized in that, The device includes a base (1), a horizontal displacement mechanism (2) installed on one side of the base (1), a vertical lifting mechanism (3) installed on the horizontal displacement mechanism (2), a stator clamp (4) installed on the vertical lifting mechanism (3), and a screw hole for fixing the iron core on the stator clamp (4); a first moving clamp (5) is fixedly installed on the other side of the base (1), a second moving clamp (6) is fixedly installed on the first moving clamp (5), and the second moving clamp (6) is provided with a placement hole (7) for placing a sensor through it.

2. The portable linear displacement sensor testing device as described in claim 1, characterized in that, The base (1) has several threaded mounting holes (8) evenly distributed on it. The horizontal displacement mechanism (2) and the first moving clamp (5) are both installed on the base (1) at a predetermined position by bolts.

3. The portable linear displacement sensor testing device as described in claim 1, characterized in that, The first moving part clamp (5) is in the shape of "I". The bottom end is installed on the base (1) by bolts, and the top end is installed on the second moving part clamp (6) by bolts.

4. The portable linear displacement sensor testing device as described in claim 1, characterized in that, The second moving clamp (6) includes a mounting base (601), on which a clamping plate (602) is provided. The placement hole (7) is provided through the clamping plate (602) from front to back. Below the placement hole (7), there is also an adjustment hole (604) that passes through the clamping plate (602) from front to back. The top surface of the clamping plate (602) is provided with a slot (605) that passes through the clamping plate (602) from front to back. The slot (605) extends longitudinally through the placement hole (7) and then to the adjustment hole (604).

5. The portable linear displacement sensor testing device as described in claim 4, characterized in that, Locking holes (606) are provided on both sides of the clamping plate (602), and locking bolts and nuts are threaded through the locking holes (606).

6. The portable linear displacement sensor testing device as described in claim 4, characterized in that, The mounting base (601) has several fixing holes (603) evenly distributed on the left and right sides. The bolts at the top of the first moving clamp (5) pass through the fixing holes (603) on the left and right sides respectively for fixing.

7. The portable linear displacement sensor testing device as described in claim 1, characterized in that, Handles (9) are fixedly installed on the left and right sides of the base (1).

Images