阅读说明：本技术 一种精密直线运动位移压力加载智能化系统 (Precise linear motion displacement pressure loading intelligent system ) 是由 鲍诺 张兴启 彭演宾 魏亮 桂普国 钟正虎 于 2020-12-10 设计创作，主要内容包括：本发明涉及一种精密直线运动位移压力加载智能化系统,包括平面基座结构、支架组件、动力系统、直线滑动系统、安装台面、锁紧机构组件、传感器系统、万向水准器和可调支脚组件；动力系统通过支架组件与平面基座结构连接；直线滑动系统包括滑块结构组件与直线导轨组件,滑块结构组件与直线导轨组件为直线滑动连接；安装台面固定在滑块结构组件上。本发明采用机电一体化的模块化组合设计,能实现实时闭环控制,具有输出高精度微位移、高稳定性压力的优点。(The invention relates to a precise linear motion displacement pressure loading intelligent system which comprises a plane base structure, a support assembly, a power system, a linear sliding system, an installation table board, a locking mechanism assembly, a sensor system, a universal level and an adjustable support leg assembly, wherein the support assembly is arranged on the plane base structure; the power system is connected with the plane base structure through the bracket component; the linear sliding system comprises a sliding block structure assembly and a linear guide rail assembly, and the sliding block structure assembly is in linear sliding connection with the linear guide rail assembly; the mounting table is fixed on the sliding block structural component. The invention adopts electromechanical integrated modular combination design, can realize real-time closed-loop control, and has the advantages of outputting high-precision micro-displacement and high-stability pressure.)

1. A precise linear motion displacement pressure loading intelligent system is characterized by comprising a plane base structure (1), a support assembly (2), a power system (3), a linear sliding system (4), an installation table top (5), a locking mechanism assembly (6), a sensor system (7), a universal level (8) and an adjustable supporting leg assembly (9);

the power system (3) is connected with the plane base structure (1) through the bracket component (2);

the linear sliding system (4) comprises a sliding block structure assembly and a linear guide rail assembly, and the sliding block structure assembly is in linear sliding connection with the linear guide rail assembly;

the mounting table top (5) is fixed on the sliding block structural component;

the sensor system (7) comprises a pressure sensor assembly and a laser displacement sensor assembly, wherein a pressure sensor in the pressure sensor assembly is connected to the vertical side surface of the mounting table top (5) through a table top adapter; a laser displacement sensor in the laser displacement sensor assembly is connected with the plane base structure (1) through a base adapter;

the locking mechanism assembly (6) comprises a locking connecting plate and a locking screw rod, and the sliding block structure assembly and the plane base structure (1) are connected through the locking connecting plate and the locking screw rod so as not to generate relative displacement;

the universal level (8) is fixed on the plane base structure (1);

an adjustable foot assembly (9) provides horizontal adjustment for the planar base structure.

2. The intelligent precise linear motion displacement pressure loading system as claimed in claim 1, wherein the planar base structure (1) comprises a universal level mounting counter bore, a locking track groove and an adjustable leg assembly mounting hole,

the universal level mounting counter bore is positioned on the central line of the lower end of the plane base structure;

the two locking track grooves comprise a left locking track groove and a right locking track groove which are symmetrically distributed along the central line on the left side and the right side of the plane base structure;

the mounting holes of the adjustable supporting leg assembly are distributed in an isosceles triangle shape, one of the mounting holes is positioned on the central line of the upper end of the plane base structure, and the other two mounting holes are positioned at the lower end and are symmetrically distributed along the central line.

3. The intelligent system for precise linear motion displacement pressure loading according to claim 1, wherein the bracket assembly (2) comprises a front bracket and a rear bracket, and the bracket assembly is mainly used for fixing and supporting the power system;

the front bracket is fixed on the plane base structure (1) and is connected with the front end of a ball screw electric push rod of the power system (3); the rear support is fixed on the plane base structure (1) and is connected with the rear end of a ball screw electric push rod of the power system (3).

4. The intelligent precise linear motion displacement pressure loading system as claimed in claim 1, wherein the power system (3) comprises a servo motor, a ball screw electric push rod and a tool head,

the servo motor is installed on the ball screw electric push rod, the ball screw electric push rod is connected with the plane base structure (1) through the front support and the rear support, and the tool head is fixedly connected to the front end of the ball screw electric push rod.

5. The intelligent system for precise linear motion displacement pressure loading according to claim 1, wherein the linear guide rail assembly comprises a left guide rail, a right guide rail, a front limit, a rear limit and a photoelectric switch,

the left guide rail is arranged on the inner side of a left locking rail groove of the plane base structure (1), and the right guide rail is arranged on the inner side of a right locking rail groove of the plane base structure (1); the front limit and the rear limit are respectively positioned at the front end and the rear end of the left guide rail and the right guide rail, and the photoelectric switch is positioned on the rear end surface of the left guide rail;

the sliding block structure component comprises a sliding block and a photoelectric shifting fork,

the slider has two slide way grooves, corresponds and installs on left guide rail and right guide rail, and the rear end face left side of slider installs the photoelectricity shift fork, and photoelectricity shift fork and photoelectric switch correspond each other, provide electric spacing signal.

6. The intelligent precise linear motion displacement pressure loading system as claimed in claim 1, wherein the mounting table (5) is of an L-shaped structure and is fixedly mounted on the upper end face of the slider structure component of the linear sliding system (4), the horizontal plane and the vertical plane of the mounting table are provided with threaded mounting holes which are arranged at equal intervals, and the pressure sensor is fixedly mounted on the vertical side face of the mounting table.

7. The intelligent precise linear motion displacement pressure loading system as claimed in claim 1, wherein the locking mechanism assembly (6) further comprises a locking nut,

the T-shaped locking screw penetrates through the locking connecting plate, the upper end of the T-shaped locking screw is provided with the locking nut, the lower end T-shaped head is arranged in the locking track groove, the plane base structure (1) and the locking connecting plate are fixed through the locking screw, and then the sliding block fixedly connected with the locking connecting plate is locked.

8. The intelligent precise linear motion displacement pressure loading system according to claim 1, wherein the sensor system (7) comprises a pressure sensor assembly and a laser displacement sensor assembly,

the pressure sensor assembly comprises a pressure sensor and a table-board adapter, the pressure sensor is fixedly connected to the mounting table board (5) through the table-board adapter and used for providing pressure data measurement and feedback when a product is loaded;

the laser displacement sensor assembly comprises a laser displacement sensor and a base adapter, wherein the laser displacement sensor is fixedly connected to the plane base structure (1) through the base adapter and used for providing displacement data measurement and feedback during product displacement measurement.

9. The intelligent precise linear motion displacement pressure loading system as claimed in claim 1, wherein the adjustable leg assembly (9) comprises a leg base, a pillar and a fixing nut;

the support column penetrates through the plane base structure (1) and is in threaded connection with the plane base structure, the upper end of the support column is provided with a fixing nut, the lower end of the support column is supported through the support foot seat, and the horizontal position of the plane base structure (1) can be obtained by adjusting the three adjustable support foot components according to the display state of the universal level (8).

10. The intelligent system for precise linear motion displacement pressure loading according to claim 1, wherein when pressure is output under working conditions, the locking mechanism assembly (6) locks the slider structure assembly to generate no relative displacement, the mounting table (5) fixedly connected with the slider structure assembly is correspondingly fixed, the ball screw electric push rod of the power system (3) pushes a load product to generate pressure, the pressure sensor feeds real-time pressure data back to a servo motor of the power system (3) in a closed loop manner, and the pressure numerical index generated by the ball screw electric push rod is adjusted in real time.

Technical Field

The invention relates to an intelligent system for loading precise linear motion displacement pressure, and belongs to the technical field of precise intelligent equipment.

Background

Due to the urgent need of high precision micro-displacement movement and constant pressure test environment in the process of precise product design. Usually, the manual operation mode cannot provide micro displacement and constant pressure, the precision and stability cannot be guaranteed for a long time, and the consistency of batch products is difficult to realize.

Especially in the assembly process of precision miniaturized products, the accuracy of assembly pressure and displacement has a significant influence on the performance of the product.

Disclosure of Invention

The technical problem solved by the invention is as follows: the defects of the prior art are overcome, the precise linear motion displacement pressure loading intelligent system is provided, high-precision displacement and high-stability pressure can be output, and the requirements of displacement, pressure measurement and assembly in product design are met.

The technical scheme of the invention is as follows:

an intelligent system for precise linear motion displacement pressure loading comprises a plane base structure, a support assembly, a power system, a linear sliding system, an installation table top, a locking mechanism assembly, a sensor system, a universal level and an adjustable support leg assembly;

the power system is connected with the plane base structure through the bracket component;

the linear sliding system comprises a sliding block structure assembly and a linear guide rail assembly, and the sliding block structure assembly is in linear sliding connection with the linear guide rail assembly;

the mounting table top is fixed on the sliding block structural component;

the sensor system comprises a pressure sensor assembly and a laser displacement sensor assembly, wherein a pressure sensor in the pressure sensor assembly is connected to the vertical side surface of the mounting table board through a table board adapter; a laser displacement sensor in the laser displacement sensor assembly is connected with the planar base structure through a base adapter;

the locking mechanism assembly comprises a locking connecting plate and a locking screw rod, and the sliding block structure assembly and the plane base structure are connected through the locking connecting plate and the locking screw rod so as not to generate relative displacement;

the universal level is fixed on the plane base structure;

the adjustable foot assembly provides horizontal adjustment for the planar base structure.

Further, the plane base structure comprises a universal level mounting counter bore, a locking track groove and an adjustable supporting leg component mounting hole,

the universal level mounting counter bore is positioned on the central line of the lower end of the plane base structure;

the two locking track grooves comprise a left locking track groove and a right locking track groove which are symmetrically distributed along the central line on the left side and the right side of the plane base structure;

the mounting holes of the adjustable supporting leg assembly are distributed in an isosceles triangle shape, one of the mounting holes is positioned on the central line of the upper end of the plane base structure, and the other two mounting holes are positioned at the lower end and are symmetrically distributed along the central line.

Furthermore, the bracket assembly comprises a front bracket and a rear bracket, and the bracket assembly is mainly used for fixing and supporting the power system;

the front bracket is fixed on the plane base structure and is connected with the front end of a ball screw electric push rod of the power system; the rear support is fixed on the plane base structure and is connected with the rear end of a ball screw electric push rod of the power system.

Further, the power system comprises a servo motor, a ball screw electric push rod and a tool head,

the servo motor is installed on ball screw electric push rod, and ball screw electric push rod passes through fore-stock and after-poppet and is connected with plane base structure, and the first fixed connection of frock is at ball screw electric push rod front end.

Further, the linear guide rail assembly comprises a left guide rail, a right guide rail, a front limit, a rear limit and a photoelectric switch,

the left guide rail is arranged on the inner side of the left locking rail groove of the plane base structure, and the right guide rail is arranged on the inner side of the right locking rail groove of the plane base structure; the front limit and the rear limit are respectively positioned at the front end and the rear end of the left guide rail and the right guide rail, and the photoelectric switch is positioned on the rear end surface of the left guide rail;

the sliding block structure component comprises a sliding block and a photoelectric shifting fork,

the slider has two slide way grooves, corresponds and installs on left guide rail and right guide rail, and the rear end face left side of slider installs the photoelectricity shift fork, and photoelectricity shift fork and photoelectric switch correspond each other, provide electric spacing signal.

Furthermore, the mounting table top is of an L-shaped structure and is fixedly mounted on the upper end face of a sliding block structure component of the linear sliding system, the horizontal plane and the vertical plane of the mounting table top are provided with threaded mounting holes which are arranged at equal intervals, and the pressure sensor is fixedly mounted on the vertical side face of the mounting table top.

Further, the locking mechanism assembly also comprises a locking nut,

and a T-shaped locking screw penetrates through the locking connecting plate, the upper end of the T-shaped locking screw is provided with a locking nut, and a T-shaped head at the lower end of the T-shaped locking screw is arranged in the locking track groove, and the plane base structure and the locking connecting plate are fixed through the locking screw so as to lock the sliding block fixedly connected with the locking connecting plate.

Further, the sensor system comprises a pressure sensor assembly and a laser displacement sensor assembly,

the pressure sensor assembly comprises a pressure sensor and a table adapter, the pressure sensor is fixedly connected to the mounting table through the table adapter and used for providing pressure data measurement and feedback when a product is loaded;

the laser displacement sensor assembly comprises a laser displacement sensor and a base adapter, wherein the laser displacement sensor is fixedly connected to the plane base structure through the base adapter and used for providing displacement data measurement and feedback during product displacement measurement.

Furthermore, the adjustable supporting leg assembly comprises a supporting leg seat, a supporting column and a fixing nut;

the pillar runs through the plane base structure and is connected with the plane base structure through screw threads, the upper end of the pillar is provided with a fixing nut, the lower end of the pillar is supported through the supporting foot seat, and the horizontal position of the plane base structure can be obtained by adjusting the three adjustable supporting foot assemblies according to the display state of the universal level.

Furthermore, when pressure is output under working conditions, the locking mechanism assembly locks the sliding block structure assembly to generate no relative displacement, the mounting table top fixedly connected with the sliding block structure assembly is correspondingly fixed, the ball screw electric push rod of the power system pushes a load product to generate pressure, the pressure sensor feeds real-time pressure data back to the servo motor of the power system in a closed loop mode, and the pressure numerical index generated by the ball screw electric push rod is adjusted in real time.

Compared with the prior art, the invention has the beneficial effects that:

(1) the high-precision ball screw provides movement of micro displacement, has higher displacement resolution and repeatability, can feed back and adjust the displacement of the electric push rod of the ball screw in a closed loop in real time, is used for providing a high-precision displacement measuring environment, and can realize automatic high-precision linear motion;

(2) the locking mechanism component locks the mounting table top, so that a high-stability pressure environment can be provided, the locking mechanism component is used for pressure measurement of precise products or a press mounting process of precise assembly, and the locking mechanism component has the advantages that the pressure environment output is stable, and the pressure of the ball screw electric push rod can be fed back and adjusted in a closed loop manner in real time;

(3) the invention adopts electromechanical integrated modular combination design, can realize real-time closed-loop control, and has the advantages of outputting high-precision micro-displacement and high-stability pressure.

Drawings

FIG. 1 is a front view of an intelligent system for precise linear motion displacement pressure loading according to an embodiment of the present invention;

FIG. 2 is a right side view of an intelligent system for precise linear motion displacement pressure loading according to an embodiment of the present invention;

FIG. 3 is a top view of an intelligent system for precise linear motion displacement pressure loading according to an embodiment of the present invention;

FIG. 4 is a sectional view of an intelligent system for precise linear motion displacement pressure loading according to an embodiment of the present invention;

fig. 5 is a perspective view of an intelligent system for precise linear motion displacement pressure loading according to an embodiment of the present invention.

Detailed Description

The invention is further illustrated by the following examples.

The invention discloses an intelligent system for loading precise linear motion displacement pressure, which adopts an electromechanical integration method combining a power system, a linear sliding system and a sensor system to realize the functions of outputting high-precision micro-displacement measurement and high-stability constant pressure. The system can provide a micro-displacement measuring environment for measuring and calibrating precise products. Meanwhile, high-stability output pressure is realized, and a table top is fixedly installed through the locking mechanism assembly, so that a high-stability pressure environment can be provided, and the device is used for pressure measurement of precise products or a press mounting process of precise assembly. The intelligent system for precise linear motion displacement pressure loading solves the problems that manual operation is difficult to realize, testing efficiency is low and consistency is unstable.

As shown in fig. 1 to 5, in this embodiment, the intelligent system for loading pressure in precise linear motion displacement includes: the device comprises a plane base structure 1, a bracket component 2, a power system 3, a linear sliding system 4, a mounting table top 5, a locking mechanism component 6, a sensor system 7, a universal level 8 and an adjustable supporting leg component 9;

wherein, the power system 3 is fixedly connected with the plane base structure 1 through the bracket component 2 to provide the driving force of linear motion; the linear guide rail assembly 18 is fixed on the plane base structure 1; the sliding block structural component 19 is connected with the linear guide rail component 18 in a sliding way, so that the linear motion of the sliding block structural component 19 can be realized; the mounting table 5 is fixedly connected to the upper surface of the sliding block structural component 19; the pressure sensor assembly 23 is fixed on the vertical side surface of the mounting table 5; the locking mechanism assembly 6 connects the slider structure assembly 19 and the planar base structure 1; the laser displacement sensor assembly 24 is connected with the planar base structure 1; the universal level 8 is fixed on the plane base structure 1 and provides horizontal state display; three adjustable foot assemblies 9 are connected to the planar base structure 1 to provide horizontal position adjustment. It can be seen that, in the present embodiment, the intelligent system for loading pressure by precise linear motion displacement is in the form of a platform structure, and all the devices are installed on the planar base structure 1.

Further, when the displacement of the working condition 1 is measured, the ball screw electric push rod 16 pushes the load product to generate displacement, the laser displacement sensor 37 feeds back real-time micro-displacement data to the servo motor 15 in a closed loop manner, and the displacement of the ball screw electric push rod 16 is adjusted.

When the pressure is output under the working condition 2, the locking mechanism assembly 6 locks the sliding block structure assembly 19 and does not generate relative displacement, the mounting table surface 5 is correspondingly fixed, the ball screw electric push rod 16 pushes a load product to generate pressure, the pressure sensor 35 feeds real-time pressure data back to the servo motor 15 in a closed loop mode, and the pressure of the ball screw electric push rod 16 is adjusted in real time.

In conclusion, an intelligent system for loading the displacement pressure of the precise linear motion is formed, and the functions of high-precision micro-displacement measurement and high-stability pressure under the linear motion of a loaded product can be respectively realized.

In a preferred embodiment of the present invention, the planar base structure 1 may specifically include: the universal level mounting counter bore 10, the locking track groove 11 (comprising a left locking track groove 39 and a right locking track groove 40), and the adjustable leg assembly mounting hole 12;

the universal level mounting counter bore 10 is located on the center line of the lower end of the planar base structure 1. The locking track grooves 11 are a left locking track groove 39 and a right locking track groove 40 which are respectively positioned on the left side and the right side of the plane base structure 1 and symmetrically distributed along the central line; the mounting holes 12 of the adjustable supporting leg assembly are distributed in an isosceles triangle shape, one of the mounting holes is positioned on the upper end center line of the plane base structure 1, and the other two mounting holes are positioned on the lower end of the plane base structure 1 and are symmetrically distributed along the center line.

The locking mechanism assembly 6 is pre-tightened by a locking nut 20 to fix the sliding block structure assembly 19 and the planar base structure 1, and a locking screw 21 slides in the locking track groove 11, so that the distance between the ball screw electric push rod 16 and the mounting table top 5 can be adjusted, and the locking mechanism assembly can adapt to the space sizes of different loaded products.

In a preferred embodiment of the present invention, the bracket assembly 2 may specifically include: a front bracket 13, a rear bracket 14;

the front bracket 13 fixedly supports the front end of the ball screw electric push rod 16; the rear bracket 14 fixedly supports the rear end of the ball screw electric push rod 16; the bottom portions of the front bracket 13 and the rear bracket 14 are fixed to the planar base structure 1, and both maintain good coaxiality in the axial direction of the ball screw electric push rod 16.

In a preferred embodiment of the present invention, the power system 3 may specifically include: a servo motor 15, a ball screw electric push rod 16 and a tool head 17;

the servo motor 15 is arranged on the rear end face of the ball screw electric push rod 16, the ball screw electric push rod 16 is connected with the plane base structure 1 through the front support 13 and the rear support 14, and the tool head 17 is fixedly connected to the front end of the ball screw electric push rod 16;

the rotation of the servo motor 15 realizes the input of torque, and the torque is transmitted to the ball screw electric push rod 16 and then transmitted to the tool head 17, so as to further push the mounting table 5 to perform linear motion displacement measurement or provide a pressure environment when the mounting table 5 is locked. The tool head 17 can be adaptively replaced according to the size and characteristics of the product.

In a preferred embodiment of the present invention, the linear sliding system 4 may specifically include: a linear guide rail assembly 18, a slider structure assembly 19;

linear guide assembly 18, comprising: a left guide rail 28, a right guide rail 29, a front limit 30, a rear limit 31 and a photoelectric switch 32; the left guide rail 28 is installed inside the left locking rail groove 39, and the right guide rail 29 is installed inside the right locking rail groove 40; the front and rear stops 30, 31 are located at the front and rear ends of the left and right rails 28, 29, respectively. The photoelectric switch 32 is located at the rear end of the left guide rail 29.

A slider block structural assembly 19 comprising: a slider 33, a photoelectric shift fork 34; the sliding block 33 is provided with two sliding ways and is arranged on the left guide rail 28 and the right guide rail 29, the photoelectric shifting fork 34 is arranged on the left side of the rear end face of the sliding block 33 and is matched with the photoelectric switch 32 for use, and the sliding block can be used for feeding back an electric limit signal.

In a preferred embodiment of the present invention, the mounting platform 5 is an L-shaped structure and is fixedly mounted on the upper end surface of the slider block assembly 19.

When the displacement is measured under the working condition 1, the ball screw electric push rod 16 pushes the load product to generate displacement, the laser displacement sensor 37 feeds back real-time micro-displacement data to the servo motor 15 in a closed loop manner, and the displacement numerical index generated by the ball screw electric push rod 16 is adjusted.

When the pressure is output under the working condition 2, the locking mechanism assembly 6 locks the sliding block structure assembly 19 to generate no relative displacement, the mounting table surface 5 fixedly connected with the sliding block structure assembly 19 is correspondingly fixed, and the ball screw electric push rod 16 pushes a load product to generate the pressure. The pressure sensor 35 feeds back real-time pressure data to the servo motor 15 in a closed loop manner, and adjusts the pressure numerical index generated by the ball screw electric push rod 16 in real time.

In a preferred embodiment of the present invention, the locking mechanism assembly 6 may specifically include: a locking nut 20, a locking screw 21 and a locking connecting plate 22;

wherein, the locking screw 21 of the T-shape is connected with the locking connection plate 22 through screw threads, and the T-shape head is placed in the locking track groove 11 and can slide linearly along the locking track groove 11. When the locking nut 20 is rotated and pre-tightened, the T-shaped head of the locking screw 21 is in contact with the upper surface of the locking track groove 11 to be fixed and locked in a friction manner, and thus the locking connecting plate 22 and the slider structure assembly 19 fixedly connected with the locking connecting plate do not move relative to the planar base structure 1. The locking mechanism assembly 6 is mainly used for the output pressure condition of the precision linear motion displacement pressure loading intelligent system.

In a preferred embodiment of the present invention, the sensor system 7 may specifically include: pressure sensor assembly 23, laser displacement sensor assembly 24.

Wherein the pressure sensor assembly 23 includes: a pressure sensor 35, a table adapter plate 36; the pressure sensor 35 is connected to the mounting table 5 via a table adapter plate 36. The pressure sensor assembly 23 is used to output pressure data.

The laser displacement sensor assembly 24 includes: a laser displacement sensor 37, a base adapter 38; the laser displacement sensor 37 is mounted on a base adapter 38, the base adapter 38 being mounted on the planar base structure 1. The laser displacement sensor 37 is used to output displacement data.

In a preferred embodiment of the present invention, the universal level 8 is a measuring tool, and the circular level bubble can measure the level of the object and provide a horizontal line reference; a universal level 8 is mounted on the planar base structure 1 to provide an adjustment indication for the adjustable foot assembly 9.

In a preferred embodiment of the present invention, the adjustable leg assembly 9 may specifically include: a leg base 25, a pillar 26, and a fixing nut 27;

the post 26 of the adjustable foot assembly 9 is mounted on the planar base structure 1 by means of a screw connection, the post 26 being perpendicular to the foot seat 25, and a fixing nut 27 is mounted on the upper region of the post 26 for locking the adjustable foot assembly 9. The three adjustable leg assemblies 9 are distributed in an isosceles triangle. The height position of the adjustable leg assembly 9 can be adjusted by rotating the support post 26 according to the indication of the universal level 8, thereby being used for leveling the position of the plane base structure 1.

In summary, in this embodiment, the operation principle of the intelligent system for loading pressure by precise linear motion displacement is as follows: the servo motor provides power for the ball screw electric push rod, and linear motion of the ball screw electric push rod with high resolution is achieved. When working condition 1 displacement measurement: the locking mechanism assembly is unlocked, the ball screw electric push rod pushes the loaded product to move, and the laser displacement sensor provides real-time accurate displacement information and feeds back the information to the servo motor for adjustment. When the working condition 2 outputs pressure: the locking mechanism component is locked, the installation table top and the plane base structure have no relative displacement, and the ball screw electric push rod pushes a load product to trigger the pressure sensor on the table top. The pressure sensor provides real-time pressure data and feeds back the servo motor for regulation, so that the output pressure is kept constant. Therefore, the intelligent system for precise linear motion displacement pressure loading has the functions of providing high-resolution micro-displacement and high-stability constant-pressure test environment.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make variations and modifications of the present invention without departing from the spirit and scope of the present invention by using the methods and technical contents disclosed above.