Sliding rod type displacement sensor calibration device
The modularly designed slide-type displacement sensor calibration device, which combines a screw, displacement sensor, and dial indicator, solves the problems of cumbersome operation and insufficient accuracy of existing devices, achieving high-precision and easy-to-operate calibration results, and is suitable for various sensor types.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FAW CAR CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-05-15
AI Technical Summary
Existing slider displacement sensor calibration devices are complex in structure, cumbersome in operation, have limited accuracy, and poor versatility, failing to meet the requirements for high-precision calibration.
The modular structure, consisting of a screw, displacement sensor, dial indicator, and aluminum profile, is fixed together with bolts to achieve simple and easy-to-operate high-precision calibration. The aluminum alloy material is used to improve the stability and service life of the device.
It achieves high-precision calibration of slider displacement sensors, simplifies the operation process, improves calibration efficiency, reduces maintenance costs, and can be flexibly applied in different environments.
Smart Images

Figure CN224247008U_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of processing technology, specifically a sliding rod type displacement sensor calibration device. Background Technology
[0002] Displacement sensors are widely used in many fields such as industrial production and automation control, and the accuracy of their measurements is crucial. However, after prolonged use or exposure to external factors, displacement sensors may exhibit measurement deviations, thus requiring regular calibration.
[0003] Existing calibration methods for slider displacement sensors have several shortcomings. Firstly, some calibration devices are complex in structure and cumbersome to operate, requiring highly skilled operators and resulting in low calibration efficiency. Secondly, some calibration devices have limited accuracy, failing to meet the calibration requirements of high-precision slider displacement sensors, making it difficult to guarantee the accuracy of calibration results. Furthermore, traditional calibration devices often lack versatility, only applicable to specific models or specifications of slider displacement sensors, and cannot flexibly handle the calibration of various types of sensors. Summary of the Invention
[0004] The purpose of this invention is to provide a calibration device for a slider displacement sensor, so as to solve the problems of cumbersome operation, limited accuracy and poor versatility of existing calibration devices mentioned in the background art.
[0005] The technical solution of this invention is as follows: a sliding rod type displacement sensor calibration device, comprising a screw, a displacement sensor, and a dial indicator arranged sequentially, all of which are fixed on an aluminum profile.
[0006] The screw is threadedly connected to the T-shaped fixture, which is fixed to the aluminum profile.
[0007] The displacement sensor is fixed on an L-shaped plate, which is fixed on an aluminum profile. A displacement sensor slide rod is installed through the displacement sensor, and the displacement sensor slide rod can reciprocate inside the displacement sensor.
[0008] The dial indicator is fixed to the clamp plate, which is fixed to the aluminum profile. A dial indicator slide rod is installed through the dial indicator, and the dial indicator slide rod can reciprocate within the dial indicator.
[0009] The screw, displacement sensor slide bar, and dial indicator slide bar are coaxial.
[0010] Furthermore, the displacement sensor is fixed to the L-shaped plate by bolts.
[0011] Furthermore, the dial indicator is fixed to the clamp plate by bolts.
[0012] Furthermore, the T-shaped tooling is fixed to the aluminum profile with bolts.
[0013] Furthermore, the L-shaped plate is fixed to the aluminum profile with bolts.
[0014] Furthermore, the clamps are fixed to the aluminum profiles with bolts.
[0015] The beneficial effects of this invention are as follows:
[0016] 1. Sliding rod type displacement sensors typically have higher accuracy, are able to detect and calibrate minute displacements, and ensure the accuracy of sensor output data.
[0017] 2. Sliding rod type displacement sensor calibration devices are typically simple in design, easy to operate, and can quickly complete the calibration process, improving work efficiency.
[0018] The 3-slide-type displacement sensor calibration device, made of aluminum alloy and a dial indicator, typically has a long service life, reducing maintenance and replacement costs.
[0019] The 4-slider type displacement sensor calibration device uses a dial indicator, which can display data during the calibration process and provide timely feedback on the status of the displacement sensor. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.
[0021] Figure 2 This is a schematic diagram of the assembly of the device of the present invention.
[0022] In the picture:
[0023] 1. Screw, 101T-type tooling, 2. Displacement sensor, 201 displacement sensor slide bar, 202L-type plate, 3. Dial indicator, 301 dial indicator slide bar, 302 clamping plate, 4. Aluminum profile. Detailed Implementation
[0024] It should be noted that in the description of this invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation.
[0025] In this invention, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; a connection can be a mechanical connection or an electrical connection; a link can be a direct connection or an indirect connection through an intermediate medium, and can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0026] This sliding displacement sensor calibration device adopts a modular design, facilitating installation and simplifying its structure. The base, made of aluminum alloy, serves as the sliding rail for the calibration device, preventing significant errors caused by placing it on the ground during calibration and thus ensuring inaccurate results. A dial indicator is fixed to the left side of the aluminum alloy base, enhancing the precision of the displacement sensor calibration. Two small clamps on the dial indicator further secure it, preventing movement that could affect the calibration results and guaranteeing accuracy.
[0027] A sliding rod type displacement sensor calibration device includes a screw 1, a displacement sensor 2, a dial indicator 3, and an aluminum profile 4.
[0028] The screw 1 is threadedly connected to the T-shaped fixture 101. The screw 1 can rotate and reciprocate along the axial direction of the screw 1. The T-shaped fixture 101 is fixed on the aluminum profile 4.
[0029] The displacement sensor 2 is fixed on the L-shaped plate 202, which is fixed on the aluminum profile 4. The displacement sensor 2 is provided with a displacement sensor slide rod 201 that passes through the displacement sensor 2. A spring is sleeved on the displacement sensor slide rod 201. One end of the spring is fixed to the displacement sensor slide rod 201, and the other end of the spring is fixed to the displacement sensor 2. The displacement sensor slide rod 201 can move along its axis under the action of external force. After the external force disappears, the displacement sensor slide rod 201 is reset by the spring.
[0030] The dial indicator 3 is fixed on the clamping plate 302, and the clamping plate 202 is fixed on the aluminum profile. The dial indicator 3 is provided with a dial indicator slide rod 301 that passes through the dial indicator 3. A spring is sleeved on the dial indicator slide rod 301. One end of the spring is fixed to the dial indicator slide rod 301, and the other end of the spring is fixed to the dial indicator 3. The dial indicator slide rod 301 can move along its axis under the action of external force. After the external force disappears, the dial indicator slide rod 301 is reset by the spring.
[0031] One end of the spring is fixed to the displacement sensor / dial indicator, and the other end of the spring is fixed to the slide rod of the displacement sensor / dial indicator, which achieves the above description.
[0032] In use, screw 1 is turned, and screw 1 presses against displacement sensor slide 201. If screw 1 is turned further, screw 1 will cause displacement sensor slide 201 to move. Displacement sensor slide 201 will press against dial indicator slide 301. If screw 1 is turned further, displacement sensor slide 201 will cause dial indicator slide 301 to move.
[0033] When screw 1 is screwed back to its original position, displacement sensor slide 201 and dial indicator slide 301 are reset under the action of their respective springs.
[0034] All modules of this device are composed of a sliding rod type displacement sensor calibration device. The aluminum alloy base ensures the overall strength of the device while reducing its weight. The upper right is connected to the screw 1. As the displacement sensor 2 is fixed, the screw moves on the aluminum profile 4 until it is just touching the head of the displacement sensor, which is convenient for calibration in different environments. At the same time, there are two hexagonal bolts on the screw 1 that are fixed to the aluminum profile 4 to ensure its stability. The dial indicator 3 installed on the far left is also fixed to the aluminum profile 4. As the screw 1 slowly rotates, the displacement sensor also slowly rotates, making the value displayed on the dial indicator more accurate.
[0035] Screw 1 is used to adjust the position of displacement sensor 2;
[0036] Displacement sensor 2 has two elongated holes with internal hexagonal sockets machined on its upper part for fixing displacement sensor 2;
[0037] Dial indicator 3, with its bottom hexagonal socket fixed to the base plate, displays values as the displacement sensor 2 moves;
[0038] Aluminum profile 4 is connected to screw 1, displacement sensor 2 and dial indicator 3.
[0039] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications, equivalent substitutions, and improvements made by those skilled in the art within the scope of the technology disclosed in the present invention, and within the spirit and principles of the present invention, should be included within the scope of protection of the present invention. Furthermore, all content not described in detail in this specification is prior art known to those skilled in the art.
[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
Claims
1. A calibration device for a slider-type displacement sensor, characterized in that, The device includes a screw, a displacement sensor, and a dial indicator arranged sequentially, all fixed to an aluminum profile. The screw is threadedly connected to a T-shaped fixture, which is also fixed to the aluminum profile. The displacement sensor is fixed to an L-shaped plate, which is also fixed to the aluminum profile. A displacement sensor slide rod passes through the displacement sensor, allowing it to reciprocate within the sensor. The dial indicator is fixed to a clamping plate, which is also fixed to the aluminum profile. A dial indicator slide rod passes through the dial indicator, allowing it to reciprocate within the indicator. The screw, displacement sensor slide rod, and dial indicator slide rod are coaxial.
2. The sliding rod type displacement sensor calibration device according to claim 1, characterized in that, The displacement sensor is fixed to the L-shaped plate with bolts.
3. The sliding rod type displacement sensor calibration device according to claim 1, characterized in that, The dial indicator is fixed to the clamp plate with bolts.
4. The sliding rod type displacement sensor calibration device according to claim 1, characterized in that, The T-shaped fixture is fixed to the aluminum profile with bolts.
5. The sliding rod type displacement sensor calibration device according to claim 1, characterized in that, The L-shaped plate is fixed to the aluminum profile with bolts.
6. The sliding rod type displacement sensor calibration device according to claim 1, characterized in that, The clamps are fixed to the aluminum profiles with bolts.