Automatic sample assembling equipment and method for preparing glass nano channel

Abstract

The invention discloses automatic sample assembling equipment and method for preparing a glass nano channel. The equipment comprises an objective table displacement module, a material assembling module, a circuit communication module and a man-machine interaction module, the objective table displacement module comprises an objective table and a guide rail, a plurality of grooves are formed in the objective table side by side and used for synchronously carrying a plurality of metal pipe through rods, and the objective table moves in the direction of the guide rail. The material assembling module is sequentially provided with five layers of working positions including a chuck position, a nut position, a reaming position, a copper rod or capillary tube position and a locking position along a guide rail path, and a plurality of through holes are formed in the positions, located on the two axial sides of the metal tube through rod, of the working positions side by side; the circuit communication module is used for signal transmission between the modules; and the man-machine interaction module is used for controlling the module to move. According to the metal pipe clamping device, the metal pipe clamping device used for clamping the to-be-machined sample can be assembled automatically, in batches, in a customized and standardized mode, and the problems that manual assembling efficiency is low, the assembling completion state is inconsistent, and the sample is prone to being damaged are effectively solved.

Description

Technical Field

[0001] The invention belongs to the technical field of laboratory instruments and equipment, and in particular relates to an automatic sample assembly device and method for preparing a glass nanochannel. Background Art

[0002] Glass single nanochannel is a micro-nanostructure material with important application value. One of its common preparation methods is the "Bench-Top" template method. This method prepares sharpened metal platinum wire nanoneedle tips through an electrochemical corrosion process, and uses glass embedding technology to replicate the morphology of the nanoneedle tip into glass. After mechanical polishing to expose the tip, the template material is dissolved by aqua regia to obtain a glass nanoporous channel. The prepared glass nanochannel is widely used in biomedicine, nanoscience and technology, materials science, and energy, and has important scientific and industrial value in the fields of sensing, biomolecule screening, and nanoreactors.

[0003] When researchers use a series of automated experimental devices to process glass nanochannel samples, a metal tube clamp serves as a key sample fixing carrier, which has the following important functions: on the one hand, the metal tube clamp can provide effective protection for extremely thin and easily bendable platinum wires and fragile capillary glass tubes waiting to be processed during the preparation of glass nanochannels; on the other hand, the metal tube clamp, as a circuit conducting component, can conveniently realize the experimental device's collection and transmission of electrical signals during the preparation process, thereby ensuring the communication and signal processing of the entire automated process.

[0004] However, the current assembly of samples to be processed mainly relies on manual operation, and each sample needs to be assembled separately. This method has many shortcomings. Due to the small size of the components of the metal tube clamp and the complicated assembly steps, manual assembly is not only inefficient and time-consuming, but also leads to inconsistent sample lengths after assembly, which in turn affects the subsequent processing accuracy. In addition, manual assembly requires a high level of proficiency for the operator. If the operation is improper or the force is uneven, it is easy to cause damage to the sample to be processed, thereby increasing costs. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide an automated sample assembly device and method for preparing glass nanochannels, which solves the problems in the above-mentioned background technology.

[0006] The technical solution adopted by the present invention to solve the technical problem is: providing an automated sample assembly device for glass nanochannel preparation, including a stage displacement module, a material assembly module, a circuit communication module and a human-computer interaction module;

[0007] The stage displacement module includes a stage and a guide rail, a plurality of grooves are arranged side by side on the stage for synchronously carrying a plurality of metal tube through rods, and the stage moves along the guide rail direction;

[0008] The material assembly module is located beside the stage and is provided with five layers of working positions, namely, a chuck position, a nut position, a hole expansion position, a copper rod or capillary position, and a locking position, in sequence along the guide rail path. The working positions are located on both sides of the axial direction of the metal tube through rod, and a plurality of through holes are arranged side by side.

[0009] The circuit communication module is used to control the stage displacement module and the material assembly module, and to transmit signals with the human-computer interaction module and the host computer;

[0010] The human-computer interaction module is used to control the movement of the stage displacement module and the material assembly module.

[0011] In the present invention, the device can assemble multiple samples to be processed at the same time, or can assemble a single sample, and the number of the grooves of the stage and the through holes of the material assembly workstation can be set according to demand.

[0012] In the present invention, the stage module is hollowed out in the middle of the device shell to set the stage, and also includes two displacement blocks symmetrically arranged along the y-axis, the displacement blocks are fixedly connected to the stage, the guide rail is arranged along the z-axis, and two synchronous motors are provided on both sides of the guide rail for simultaneously driving the displacement blocks to move up and down along the z-axis guide rail direction; the stage is also provided with fasteners, including a pressure rod spanning above the groove, and the metal tube through rod is fixed to the groove through the fasteners.

[0013] In the present invention, the material assembly module is arranged in the equipment shell, and is divided into five layers (ten in total) of working positions from bottom to top, and each layer of working positions has a through hole corresponding to the side wall of the equipment shell, and the number of through holes is adapted to the number of grooves on the worktable; the working positions on one side of the material assembly module are arranged from bottom to top in sequence as (large aperture) chuck position, nut position, hole expansion position, capillary position and locking position, and the working positions on the other side are arranged from bottom to top in sequence as (small aperture) chuck position, nut position, hole expansion position, copper rod position and locking position.

[0014] In the present invention, a material push rod is provided in each of the through holes; two chucks with different apertures are placed at the material push rods at the two chuck positions respectively; a sleeve is provided at the two nut positions and the two locking positions, the inner texture of the sleeve fits with the nut, a gear is provided at the end, and the gears of each layer are connected by a synchronous belt; nuts are placed at the sleeves of the two nut positions; a pin is provided at the material push rods at the two hole expansion positions, and the diameter of the pin is larger than the initial aperture of the chuck; a capillary glass tube is placed at the material push rod at the capillary position, and the two ends of the capillary glass tube are open; a copper rod is placed at the material push rod at the copper rod position, and the diameter of the copper rod is smaller than the capillary glass tube.

[0015] In the present invention, the material push rod can accurately control the depth of the capillary glass tube inserted into the metal tube through rod and the depth of the copper rod inserted into the capillary glass tube through program setting, thereby accurately adjusting the length of the capillary glass tube and the copper rod exposed from the metal tube through rod, so that each batch of samples to be processed can be assembled into the same state, providing important guarantee for the smooth implementation of subsequent automated processing steps.

[0016] In the present invention, a fastener is provided on the groove, and the fastener comprises a pressure rod straddling the groove, and the metal pipe through rod is fixed to the groove through the fastener.

[0017] In the present invention, the circuit communication module includes a controller for controlling and processing various signals and data. The controller controls the lifting displacement of the stage along the z-axis and the horizontal displacement or rotational displacement of the material push rod along the x-axis through a motor, and communicates with the human-computer interaction module via a serial port; the circuit communication module also includes an ESP8266 module and an HC05 module for wireless communication with a host computer.

[0018] In the present invention, the human-computer interaction module is provided with a control panel, and the control panel is located on the surface of the device housing and is used to set assembly parameters.

[0019] Another technical solution adopted by the present invention to solve the technical problem is: providing an automated sample assembly method for glass nanochannel preparation, using the above-mentioned equipment to perform automated sample assembly, comprising the following steps:

[0020] 1) Place the metal tube through rod into the groove of the stage, and use the pressure rod to press and fix the metal tube through rod;

[0021] 2) Set the corresponding parameters through the human-computer interaction module, use the controller to control the stage to the initial position, and start the material assembly module;

[0022] 3) The assembly steps of the material assembly module are as follows:

[0023] ① The material push rod at the chuck position is driven by the motor at this position to push the chucks with small and large apertures to insert into the two ends of the metal pipe through rod;

[0024] ② The material push rod at the nut position carries the nut and moves horizontally to the chuck. The nut is installed on the chuck by rotating the sleeve of the material push rod, leaving a certain locking space;

[0025] ③The ejector pin at the end of the material push rod at the hole expansion position is inserted into the chuck and retracted to expand the chuck aperture;

[0026] ④The material push rod at the copper rod position pushes the copper rod into the chuck with a small aperture, and the material push rod at the capillary position pushes the capillary glass tube into the chuck with a large aperture;

[0027] ⑤The material push rod in the locking position drives the nut to lock through the sleeve;

[0028] 4) Unloading.

[0029] In the present invention, the device supports users to customize the assembly steps and related parameters through a human-computer interaction interface. Users can flexibly select assembly steps according to specific needs and adjust related parameters, such as whether to assemble the chuck and nut, and the depth of the copper rod and capillary glass tube inserted into the metal tube through rod. When used for the first time, the parameter configuration set by the user can be saved as a preset scheme for one-click loading for subsequent use. In addition, users can also manage saved parameter scripts, including deleting existing scripts or creating new scripts, to meet the operation requirements in different scenarios.

[0030] Compared with the background technology, this technical solution has the following advantages:

[0031] The present invention proposes an automated sample assembly device and method for glass nanochannel preparation, and the components (including but not limited to metal tube rods, chucks, nuts, capillary glass tubes and copper rods) of the sample carrier to be processed are automatically assembled. By synchronously carrying multiple metal tube rods, multiple samples to be processed can be assembled simultaneously; the depth of the capillary glass tube inserted into the metal tube rod and the depth of the copper rod inserted into the capillary glass tube can be accurately controlled by the material push rod, so as to accurately adjust the length of the capillary glass tube and the copper rod exposed from the metal tube rod, which provides an important guarantee for the smooth implementation of the subsequent automated processing steps; through the human-computer interaction function, users are supported to customize parameters according to needs, and flexibly adapt to the requirements of different preparation process flows; by clearly defining an assembly method, efficient, stable, automated, batch, customized and standardized assembly operations are achieved, solving the problems of low efficiency of manual assembly, inconsistent assembly completion status and easy damage to samples. At the same time, as an important link in the whole process of automated preparation of glass nanochannels, the present invention not only further optimizes the degree of automation of laboratory research, but also lays a technical foundation for the large-scale preparation and industrial application of glass nanochannels, and has important engineering application value and broad market prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a front cross-sectional view of the device of Example 1;

[0033] Figure 2 is a side sectional view of the device of Example 1;

[0034] Figure 3 It is a structural schematic diagram of the device of Example 1;

[0035] Figure 4 This is a diagram of the human-computer interaction function interface of the device in Example 1;

[0036] Figure 5 This is a flow chart of the automated sample assembly method of Example 2;

[0037] in:

[0038] 1. Stage; 2. Displacement block; 3. (z-axis) guide rail; 4. Metal tube through rod; 5. Chuck position; 6. Nut position; 7. Hole expansion position; 8. Copper rod position / capillary position; 9. Locking position; 10. Slide rail; 11. Controller (main control circuit board); 12. DC power interface; 13. Motor; 14. Human-computer interaction panel; 15. Power button; 16. (Chuck position) through hole; 17. (Nut position) through hole; 18. (Hole expansion position) through hole; 19. (Copper rod position or capillary position) through hole; 20. (Locking position) through hole; 21. Gear; 22. Synchronous belt; DETAILED DESCRIPTION

[0039] It should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0040] Example

[0041] This embodiment provides an automated sample assembly device for preparing glass nanochannels, such as Figure 1 The equipment is equipped with a stage displacement module, a material assembly module, a circuit communication module and a human-computer interaction module;

[0042] The stage displacement module includes a stage 1, a displacement block 2, a guide rail 3, a synchronous motor and a screw. The stage 1 is located outside the device housing (at the hollowed-out groove in the middle). Several grooves are arranged side by side on the stage 1 for carrying a metal tube through rod 4. A fastener is arranged on the groove. The fastener includes a pressure rod arranged across the groove. Both ends of the pressure rod are arranged as a press-type locking structure. The metal tube through rod 4 is fixed to the groove by the fastener, which is convenient for fixing before assembly and releasing the metal tube through rod 4 after assembly. The stage 1 moves up and down along the z-axis guide rail 3. Two displacement blocks 2 are symmetrically arranged along the y-axis at the bottom of the stage 1. The displacement blocks 2 are fixedly connected to the stage 1. Two synchronous motors are arranged at the bottom of the guide rail 3. The synchronous motor converts the rotational motion into the lifting motion of the displacement block 2 along the z-axis guide rail 3 through the screw.

[0043] The material assembly module is divided into five layers (ten in total) of working positions from bottom to top, and is set as a groove-type grid structure, wherein the working positions on one side are sequentially arranged from bottom to top as (large aperture) chuck position 5, nut position 6, hole expansion position 7, capillary position 8 and locking position 9, and the working positions on the other side are sequentially arranged from bottom to top as (small aperture) chuck position 5, nut position 6, hole expansion position 7, copper rod position 8 and locking position 9. Each layer of working positions has corresponding through holes 16 to 20 opened on the side wall of the equipment housing, and the number of through holes matches the number of grooves of the stage 1. Material push rods are arranged in the through holes 16 to 20; the material push rods of the working positions on the same layer are connected to the same motor 13, and driven by the motor 13, they move from both sides of the stage 1 to the center in the x-axis direction along the bottom slide rail 10 of the working position, pushing each sub-component to be assembled onto the metal pipe through rod 4.

[0044] The material assembly module of this embodiment starts with the first chuck position, and the two chuck positions are used to place and assemble chucks of two different apertures. The material push rod is driven by the motor at this position to push the chuck through the through hole 16 and insert it into the metal pipe through rod 4.

[0045] The two nut positions on the second layer are used to place and assemble nuts of the same specifications. The material push rods of the two nut positions are specially set as sleeve structures. The internal texture of the sleeve fits the nut. The end of the sleeve is connected to the gear 21. The gear 21 of the same working position is connected through the synchronous belt 22 to achieve synchronous and unidirectional rotation. Each nut position is respectively provided with two motors 13, one of which drives the sleeve to move horizontally along the bottom slide rail 10 to push the nut onto the chuck, and the other motor 13 controls the rotation of the synchronous belt 22 and the gear 21, so that the sleeve rotates the nut a certain number of times, slightly clamping the chuck while reserving a certain space for the next assembled parts.

[0046] The two hole-expanding positions of the third layer are used to enlarge the chuck aperture. The material push rods of the two hole-expanding positions are specially configured as ejector pin structures, and the ejector pin diameter is larger than the initial aperture of the chuck. The ejector pins are respectively driven by corresponding motors to be inserted into the chuck through the through holes 18, and expand the chuck aperture after retreating.

[0047] The copper rod position and the capillary glass tube position of the fourth layer are used to place and assemble the capillary glass tube and the copper rod respectively. The material push rod of the copper rod position pushes the copper rod through the through hole 19 and inserts it into the chuck with a small aperture under the drive of the motor of the position, and the material push rod of the capillary glass tube position pushes the capillary glass tube and inserts it into the chuck with a large aperture under the drive of the motor of the position.

[0048] The two locking positions on the fifth layer are numbered to realize the functions of locking the nut before unloading and loosening the nut for unloading. The material push rods of the two locking positions are also specially set as sleeve structures, the internal texture of the sleeve fits the nut, the end of the sleeve is connected to the gear 21, and the gears 21 of the same working position are connected by the synchronous belt 22 to achieve the same direction of rotation. Each locking position is respectively provided with two motors 13, one of which drives the sleeve to move horizontally along the bottom slide rail 10, and the other motor 13 controls the rotation of the synchronous belt 22 and the gear 21, so that the sleeve locks the nut clockwise or loosens the nut counterclockwise.

[0049] The four feeding work positions of the chuck position 5, nut position 6, capillary position and copper rod position 8 can be drawn out from both sides of the equipment along the slide rail 10 to replenish the sub-components to be assembled. The length of the feeding box is the same as the length of the components to be assembled.

[0050] The circuit communication module is used to control the stage displacement module and the material assembly module, and to transmit signals with the human-computer interaction module and the host computer; the circuit communication module in this embodiment includes a controller (main control circuit board) 11 equipped with a microcontroller minimum system, a power control system, a motor drive system, a communication system and an external interface system. The circuit communication module transmits the signal of completing the filling, locking and loosening of the metal tube through rod 4 on the stage 1 to the controller 11, and the controller 11 controls the movement of the stage 1 along the z-axis and the displacement or rotation displacement of the material push rod along the x-axis through the motor 13, and performs two-way communication with the human-computer interaction module. Through this module, the user can accurately control the device and monitor the operating status and data of the device in real time. In this embodiment, the microcontroller minimum system is the main control core, realizing data calculation, information processing and equipment working logic control; the power system is used to realize the 12-24V voltage conversion input from the outside, converting it into 5V and 3.3V, and powering each chip. The motor drive system is used to realize the transmission of enable signals, direction signals and speed signals of each motor 13, and control the operation of each motor; the communication system includes ESP8266 module and HC05 module, which are used to realize WIFI communication and Bluetooth communication between the automated assembly equipment and the remote equipment; the external interface system reserves the equipment debugging cable interface, the human-computer interaction cable interface and the motor 13 control system cable interface.

[0051] The human-computer interaction module is connected to the host computer through the circuit communication module, and the user controls the movement of the stage displacement module and the material assembly module through the human-computer interaction module. The human-computer interaction module in this embodiment is provided with a control panel 14 and a power button 15. The control panel 14 uses a serial port screen (including an LCD display and a touch screen) located on the surface of the device housing for setting assembly parameters, and a DC power interface 12 is provided on the back of the device housing for connecting an external power supply. The user realizes the position control, positioning and calibration of the stage 1 through the human-computer interaction module, and displays the current working position sequence number, lack of material display, start button display, screen brightness display, one-key Internet access function display and Bluetooth connection display. In addition, the device of this embodiment also supports users to customize the assembly steps and related parameters through the human-computer interaction interface. Users can flexibly select assembly steps according to specific needs and adjust related parameters, such as whether to install the chuck and nut, and the depth of the copper rod and capillary glass tube inserted into the metal tube through rod 4. When used for the first time, the parameter configuration set by the user can be saved as a preset scheme for one-key loading for subsequent use. In addition, users can also manage saved parameter scripts, including deleting existing scripts or creating new scripts, to meet operational requirements in different scenarios.

[0052] Example 2

[0053] An automated sample assembly method for preparing a glass nanochannel is performed using the device of Example 1, comprising the following steps:

[0054] 1) Place a batch of metal tube through rods 4 into the grooves of the stage 1 and fix them with a pressure rod; then pull out the feed boxes from both sides of the equipment, put the corresponding sub-components to be assembled into them, and then push the feed boxes into the equipment.

[0055] 2) Turn on the power of the equipment and click the "one-key reset" button on the human-machine interface. The equipment automatically resets the material push rods, sleeves and ejectors of all working positions, and the stage 1 moves to the first layer, i.e., the "zero reset state". Set and save the assembly steps and corresponding parameters on the human-machine interface, click the start button, and the serial port screen will send a work enable signal to the microcontroller 11 through the serial port. The equipment starts working and displays the current working position and work completion status in real time through the human-machine interface.

[0056] 3) The assembly steps of the material assembly module are as follows:

[0057] Step 1: The material push rod at the chuck position is driven by a motor to push the chucks with small aperture and large aperture to insert into the metal pipe through rod 4;

[0058] Step 2: The stage 1 rises to the second level, and the sleeve at the nut position is driven by the motor to push the nut into the chuck and pre-tighten it;

[0059] Step 3: The stage 1 rises to the third level, and the ejector pin at the hole expansion position is driven by a motor to insert into the chuck and expand the hole diameter;

[0060] Step 4: The stage 1 rises to the fourth level, and the material push rods at the capillary position and the copper rod position push the capillary glass tube and the copper rod into the chuck respectively;

[0061] Step 5: The stage 1 rises to the fifth level, and the sleeve at the locking position tightens the nut driven by the motor.

[0062] The display area of ​​the human-computer interaction interface displays the serial number of the currently working workstation in real time. When the workstation is assembled, the icon changes from gray to green. The user can adjust the screen brightness, turn on the one-key Internet access function and Bluetooth connection function through the button in the upper right corner of the human-computer interaction interface. The automated assembly equipment and the host computer can realize real-time data transmission, remote control and monitoring through WIFI communication and Bluetooth communication.

[0063] The stage displacement module can either pass through the five-layer structure of the material assembly module from bottom to top to complete all assembly steps of the sample to be processed from the beginning, or it can only pass through the third to fifth layers to complete the assembly of a new sample to be processed after unloading, thereby omitting the assembly steps of the chuck and the nut, saving assembly time and realizing the reuse of parts.

[0064] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automated sample assembly device for glass nanochannel preparation, characterized in that: It includes a stage displacement module, a material assembly module, a circuit communication module and a human-computer interaction module; The stage displacement module includes a stage and a guide rail, a plurality of grooves are arranged side by side on the stage for carrying metal pipe rods, and the stage moves along the guide rail direction; The material assembly module is provided with five layers of working positions, namely, a chuck position, a nut position, a hole expansion position, a copper rod or capillary position, and a locking position, in sequence along the guide rail path. The working positions are located on both sides of the axial direction of the metal tube through rod, and a plurality of through holes are arranged side by side; The circuit communication module is used to control the stage displacement module and the material assembly module, and to transmit signals with the human-computer interaction module and the host computer; The human-computer interaction module is used to control the movement of the stage displacement module and the material assembly module.

2. The automated sample assembly device for glass nanochannel preparation according to claim 1, characterized in that: The number of the grooves of the loading platform matches the number of the through holes of each layer of the working position.

3. The automated sample assembly device for glass nanochannel preparation according to claim 1, characterized in that: The stage module is provided with the stage in the hollow part in the middle of the equipment shell, and also includes two displacement blocks symmetrically arranged along the y-axis, the displacement blocks are fixedly connected to the stage, the guide rail is arranged along the z-axis, and two synchronous motors are arranged under the guide rail for simultaneously driving the displacement blocks and the stage to move up and down along the z-axis guide rail.

4. The automated sample assembly device for glass nanochannel preparation according to claim 1, characterized in that: The material assembly module is arranged in the equipment shell, and the through hole is opened in the side wall of the equipment shell; the working positions on one side of the material assembly module are arranged in order from bottom to top as a large-aperture chuck position, a nut position, a hole expansion position, a capillary position and a locking position, and the working positions on the other side are arranged in order from bottom to top as a small-aperture chuck position, a nut position, a hole expansion position, a copper rod position and a locking position.

5. The automated sample assembly device for glass nanochannel preparation according to claim 4, characterized in that: A material push rod is provided in the through hole; two chucks with different apertures are placed on the material push rods at the large-aperture chuck position and the small-aperture chuck position respectively; a sleeve is provided at the material push rods at the nut position and the locking position, a nut is placed on the sleeve at the nut position, the internal texture of the sleeve fits with the nut, a gear is provided at the end, and the gears of each layer are connected by a synchronous belt; a thimble is provided at the material push rod at the hole expansion position, and the diameter of the thimble is larger than the initial aperture of the chuck; a capillary glass tube is placed at the material push rod at the capillary position, and both ends of the capillary glass tube are opened; a copper rod is placed at the material push rod at the copper rod position, and the diameter of the copper rod is smaller than the capillary glass tube.

6. The automated sample assembly device for glass nanochannel preparation according to claim 5, characterized in that: The material push rod controls the depth of the capillary glass tube inserted into the metal tube through rod and the depth of the copper rod inserted into the capillary glass tube through program setting.

7. The automated sample assembly device for glass nanochannel preparation according to claim 1, characterized in that: The circuit communication module includes a controller, which controls the movement of the stage along the z-axis and the horizontal displacement or rotational displacement of the material push rod along the x-axis through a motor, and is connected to the human-computer interaction module by electrical signals; the circuit communication module also includes an ESP8266 module and an HC05 module.

8. The automated sample assembly device for glass nanochannel preparation according to claim 7, characterized in that: The human-computer interaction module is provided with a control panel, and the control panel is located on the surface of the device housing and is used to set controller parameters.

9. An automated sample assembly method for glass nanochannel preparation, characterized in that: The automated sample assembly is performed using the device as described in any one of claims 1 to 8, wherein the material assembly process comprises the following steps: ① The material push rod at the chuck position is driven by the motor to push the chucks with small and large apertures to insert into the two ends of the metal pipe through rod; ② The material push rod at the nut position carries the nut and moves horizontally to the chuck. The nut is installed on the chuck by rotating the sleeve of the material push rod, leaving a certain locking space; ③The ejector pin at the end of the material push rod at the hole expansion position is inserted into the chuck and retracted to expand the chuck aperture; ④The material push rod at the copper rod position pushes the copper rod into the chuck with a small aperture, and the material push rod at the capillary position pushes the capillary glass tube into the chuck with a large aperture; ⑤The material push rod in the locking position drives the nut to lock through the sleeve.

10. An automated sample assembly method for glass nanochannel preparation according to claim 9, characterized in that: Customize assembly steps and parameters through the human-computer interaction panel, including: saving the parameter configuration set for initial use as a preset scheme for one-click loading for subsequent use; managing saved parameter scripts, including deleting existing scripts or creating new scripts.

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