A multi-channel automatic liquid transfer system for automatic chemical synthesis experiments

Abstract

The utility model discloses a kind of multi-channel automatic pipetting systems for automatic chemical synthesis experiment, including mechanical movement mechanism, multi-channel pipetting mechanism, locking structure and control system;Mechanical movement mechanism contains the X, Y axis mechanical arm of vertical setting, is driven by step servo push rod motor, cooperate X / Y axis photoelectric switch calibration displacement, construct plane motion coordinate system;Multi-channel pipetting mechanism is equipped with several pipetting heads, each channel is connected by connecting pipeline peristaltic pump and installs flow switch real-time monitoring liquid flow.Locking structure includes pipetting fixed head, inverted trapezoidal compression ring and pipetting locking head, pipette tube penetrates three, realizes sealing by screwing into compression ring;Control system connects step motor, peristaltic pump and flow switch, calculates motion trajectory and pump parameter after receiving instruction, synchronously controls pipetting operation and processes flow signal;The system realizes multi-channel accurate positioning, stable flow control and leak prevention, significantly improves chemical synthesis experiment proportioning precision, safety and automation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of chemical experimental equipment technology, specifically to a multi-channel automatic liquid transfer system for automated chemical synthesis experiments. Background Technology

[0002] In the field of chemical synthesis experiments, pipetting is one of the most fundamental and frequent operations, and its accuracy and efficiency directly affect the reliability and throughput of experimental results. For a long time, this operation has primarily relied on manual pipetting by researchers. Manual operation is not only time-consuming and labor-intensive, and difficult to maintain consistently, but more importantly, it is prone to introducing subjective errors. This is especially true when performing multi-step continuous synthesis or handling trace amounts of toxic reagents, where the repeatability and safety of the operation face severe challenges. As synthetic chemistry develops towards high throughput and automation, this traditional method, reliant on manual labor, is gradually becoming a bottleneck for efficiency improvement and precise process control.

[0003] Although some automated pipetting devices have emerged on the market in an attempt to replace manual operation, these existing technologies still have significant shortcomings in practical applications. For example, when pipetting operations need to be performed simultaneously at multiple different locations, existing systems often struggle to achieve precise and coordinated control of multiple pipetting channels, leading to inconsistent pipetting volumes or inaccurate positioning in each channel. Furthermore, the stability of liquid transport during pipetting is poor, easily resulting in flow fluctuations or even loss of control, affecting the reliability of pipetting accuracy. The sealing and securing of the liquid transport links also pose risks, potentially leading to liquid leakage, which not only pollutes the environment but also poses safety hazards, failing to meet the stringent requirements of complex chemical synthesis experiments for precise proportioning of multiple reagents, rapid and stable pipetting, and safe operation.

[0004] Therefore, there is an urgent need in this field to develop a new type of automated pipetting system that can effectively overcome the above-mentioned difficulties. Specifically, there is a need for a solution that can achieve high-precision multi-channel parallel pipetting control, ensure stable and reliable liquid delivery throughout the process, have an effective leak-proof mechanism, and be easy to integrate into automated synthesis experimental procedures, so as to truly meet the comprehensive requirements of modern chemical synthesis experiments for automation, high throughput, high precision, and safety. Utility Model Content

[0005] In view of the above-mentioned technical problems in related technologies, this utility model proposes a multi-channel automatic liquid transfer system and method for automated chemical synthesis experiments, which can overcome the above-mentioned shortcomings of the prior art.

[0006] To achieve the above-mentioned technical objectives, the technical solution of this utility model is implemented as follows:

[0007] A multichannel automated pipetting system for automated chemical synthesis experiments;

[0008] This automated multichannel pipetting system for chemical synthesis experiments includes a mechanical motion mechanism, a multichannel pipetting mechanism, a locking structure, and a control system. The mechanical motion mechanism comprises an X-axis robotic arm and a Y-axis robotic arm arranged perpendicularly to each other, forming a planar motion coordinate system. Both the X-axis and Y-axis robotic arms are driven by stepper servo motors and are equipped with X-axis and Y-axis photoelectric switches respectively for displacement calibration. The multichannel pipetting mechanism includes at least two pipetting heads, each independently forming a pipetting channel. Each pipetting channel is connected via... The piping is connected to a peristaltic pump, and each pipetting channel is equipped with a flow switch for real-time monitoring of liquid flow. The locking structure includes a pipetting fixing head, a pressure ring, and a pipetting locking head. The pipetting tube is sequentially inserted through the U-shaped hole of the pipetting fixing head, the pressure ring, and the pipetting locking head. The pressure ring adopts an inverted trapezoidal design and presses the pipetting tube tightly when screwed into the pipetting locking head. The control system is connected to the stepper servo push rod motor, the peristaltic pump, and the flow switch, respectively, and is used to receive pipetting commands, calculate motion trajectory and pump parameters, control pipetting operations, and process flow feedback signals.

[0009] Furthermore, it also includes an intelligent liquid level detection unit and a waste liquid recovery unit; the intelligent liquid level detection unit is a non-contact liquid level sensor installed on the side wall of the reaction solvent tank for real-time detection of liquid level and alarm; the waste liquid recovery unit includes a waste liquid collection box located below the pipette head and a waste liquid recovery tank connected to the waste liquid pipeline, the waste liquid pipeline being controlled by the control system to transport waste liquid.

[0010] Furthermore, the X-axis robotic arm and Y-axis robotic arm adopt a high-precision linear guide and slider structure; the peristaltic pump controls the liquid delivery flow rate by adjusting the rotation speed.

[0011] Furthermore, when the flow switch detects an abnormal flow rate, the control system automatically adjusts the peristaltic pump speed or stops the pipetting operation.

[0012] Furthermore, the inverted trapezoidal conical surface of the pressure ring forms a linear extrusion structure with the internal thread of the pipetting locking head, and the pipetting tube is fixed by radial locking force; the non-contact liquid level sensor adopts a flexible capacitive liquid level detection method, and the data of the non-contact liquid level sensor is transmitted to the control system in real time, triggering an audible and visual alarm when the liquid level is lower than the threshold.

[0013] Furthermore, the waste liquid recovery tank is located on the side of the reaction solvent tank, and the waste liquid pipeline transport path is controlled by the control system commands.

[0014] Furthermore, the stepper servo push rod motor is connected to the X-axis robotic arm and the Y-axis robotic arm through a transmission mechanism, and the displacement accuracy is calibrated in real time by the X-axis photoelectric switch and the Y-axis photoelectric switch.

[0015] The beneficial effects of this utility model are as follows: through precise control of the mechanical motion mechanism and coordinated design of the multi-channel pipetting mechanism, the positioning of the multi-channel pipetting is accurate and the flow rate is stable and reliable, effectively solving the problems of inaccurate multi-channel pipetting control and liquid leakage; combined with intelligent liquid level monitoring and automated recovery mechanism, it achieves the comprehensive goal of improving the proportioning accuracy, operational safety and automation efficiency of chemical synthesis experiments. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments 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.

[0017] Figure 1 This is a schematic diagram of the overall structure of a multi-channel automated liquid handling system for automated chemical synthesis experiments according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of several pipetting heads and waste liquid collection box of a multi-channel automatic pipetting system for automated chemical synthesis experiments according to an embodiment of the present invention;

[0019] Figure 3 This is a partial structural schematic diagram of a multichannel automated liquid handling system for automated chemical synthesis experiments according to an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of a single pipette head in an automated multichannel automatic pipetting system for chemical synthesis experiments according to an embodiment of the present invention;

[0021] Figure 5 This is an exploded view of a single pipette head of a multichannel automated pipetting system for automated chemical synthesis experiments according to an embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram showing the X-axis photoelectric switch setting position of a multi-channel automatic pipetting system for automated chemical synthesis experiments according to an embodiment of this utility model;

[0023] Figure 7 This is a schematic diagram showing the Y-axis photoelectric switch setting position of a multi-channel automatic pipetting system for automated chemical synthesis experiments according to an embodiment of this utility model;

[0024] Figure 8 This is a schematic diagram showing the location of the non-contact liquid level sensor on the reaction solvent tank of a multi-channel automatic liquid transfer system for automated chemical synthesis experiments according to an embodiment of this utility model;

[0025] Figure 9 This is a schematic diagram of the liquid inlet principle of a multi-channel automatic liquid transfer system for automated chemical synthesis experiments according to an embodiment of the present invention;

[0026] Figure 10 This is a schematic diagram of the liquid discharge principle of a multi-channel automatic liquid transfer system for automated chemical synthesis experiments according to an embodiment of this utility model;

[0027] In the diagram: 1. X-axis robotic arm; 2. Y-axis robotic arm; 3. Pipette head; 4. Waste liquid collection box; 5. Peristaltic pump; 6. Reaction solvent tank; 7. Liquid level detection switch; 8. Waste liquid recovery tank; 9. Control system; 10. Pipette fixing head; 11. Pressure ring; 12. Pipette locking head; 13. X-axis photoelectric switch; 14. Y-axis photoelectric switch; 15. Non-contact liquid level sensor; 16. Flow switch; 17. Reaction vessel; 18. Reagent container. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art are within the protection scope of the present utility model.

[0029] It should be understood that in the description of the embodiments of this utility model, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model 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. Therefore, they should not be construed as limitations on the embodiments of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of the embodiments of this utility model, "several" means two or more, unless otherwise explicitly specified.

[0030] like Figure 1-10As shown in the embodiment of this utility model, an automated multi-channel automatic pipetting system for chemical synthesis experiments includes a mechanical motion mechanism, a multi-channel pipetting mechanism, a locking structure, and a control system 9. The mechanical motion mechanism includes an X-axis robotic arm 1 and a Y-axis robotic arm 2 arranged perpendicularly to each other, forming a planar motion coordinate system. Both the X-axis robotic arm 1 and the Y-axis robotic arm 2 are driven by stepper servo pushrod motors and are respectively equipped with an X-axis photoelectric switch 13 and a Y-axis photoelectric switch 14 for displacement calibration. The multi-channel pipetting mechanism includes at least two pipetting heads 3, each pipetting head 3 independently forming a pipetting channel. Each pipetting channel is connected to... The system is connected to the peristaltic pump 5 via a connecting pipe, and each pipetting channel is equipped with a flow switch 16 for real-time monitoring of liquid flow. The locking structure includes a pipetting fixing head 10, a pressure ring 11, and a pipetting locking head 12. The pipetting tube is sequentially inserted into the U-shaped hole of the pipetting fixing head 10, the pressure ring 11, and the pipetting locking head 12. The pressure ring 11 adopts an inverted trapezoidal design and presses the pipetting tube when screwed into the pipetting locking head 12. The control system 9 is connected to the stepper servo push rod motor, the peristaltic pump 5, and the flow switch 16, respectively, and is used to receive pipetting commands, calculate motion trajectory and pump parameters, control pipetting operations, and process flow feedback signals.

[0031] According to an embodiment of the present invention, a multi-channel automatic liquid transfer system for automated chemical synthesis experiments further includes, in a specific embodiment, an intelligent liquid level detection unit and a waste liquid recovery unit. The intelligent liquid level detection unit is a non-contact liquid level sensor 15 installed on the side wall of the reaction solvent tank 6 for real-time detection of liquid level and alarm. The waste liquid recovery unit includes a waste liquid collection box 4 located below the pipette head 3 and a waste liquid recovery tank 8 connected to a waste liquid pipeline. The waste liquid pipeline is controlled by a control system 9 to transport waste liquid.

[0032] According to an embodiment of the present invention, a multi-channel automatic liquid transfer system for automated chemical synthesis experiments is provided. In a specific embodiment, the X-axis robotic arm 1 and the Y-axis robotic arm 2 adopt a high-precision linear guide rail and slider structure; the peristaltic pump 5 controls the liquid delivery flow rate by adjusting the rotation speed.

[0033] According to an embodiment of the present invention, a multi-channel automatic pipetting system for automated chemical synthesis experiments is provided. In a specific embodiment, when the flow switch 16 detects an abnormal flow rate, the control system 9 automatically adjusts the speed of the peristaltic pump 5 or stops the pipetting operation.

[0034] According to an embodiment of the present invention, a multi-channel automatic pipetting system for automated chemical synthesis experiments is provided. In a specific embodiment, the inverted trapezoidal conical surface of the pressure ring 11 and the internal thread of the pipetting locking head 12 form a linear compression structure, and the pipetting tube is fixed by radial locking force. The non-contact liquid level sensor 15 adopts a flexible capacitive liquid level detection method. The data of the non-contact liquid level sensor 15 is transmitted to the control system 9 in real time, and an audible and visual alarm is triggered when the liquid level is lower than the threshold.

[0035] According to an embodiment of the present invention, a multi-channel automatic liquid transfer system for automated chemical synthesis experiments is provided. In a specific embodiment, the waste liquid recovery tank 8 is located on the side of the reaction solvent tank 6, and the waste liquid pipeline transport path is controlled by the control system 9.

[0036] According to an embodiment of the present invention, a multi-channel automatic liquid transfer system for automated chemical synthesis experiments is provided. In a specific embodiment, the stepper servo push rod motor is connected to the X-axis robotic arm 1 and the Y-axis robotic arm 2 through a transmission mechanism, and the displacement accuracy is calibrated in real time by the X-axis photoelectric switch 13 and the Y-axis photoelectric switch 14.

[0037] To facilitate understanding of the above-mentioned technical solutions of this utility model, the following detailed description of the above-mentioned technical solutions of this utility model is provided through specific usage methods.

[0038] More specifically, the automated multichannel automatic pipetting system for automated chemical synthesis experiments according to this utility model includes:

[0039] 1. Mechanical Motion Mechanism: Composed of an X-axis robotic arm 1 and a Y-axis robotic arm 2, which are set perpendicularly to each other, forming a planar motion coordinate system. Both X-axis robotic arm 1 and Y-axis robotic arm 2 adopt high-precision linear guides and slider structures to ensure smooth and accurate movement. The X-axis robotic arm and Y-axis robotic arm 2 are driven by stepper servo actuator motors, which are connected to the X-axis robotic arm and Y-axis robotic arm 2 through a transmission mechanism. This allows for precise control of the movement distance and speed of the X-axis robotic arm and Y-axis robotic arm 2 in the X and Y axes, respectively. The X-axis robotic arm and Y-axis robotic arm 2 are respectively calibrated using high-precision X-axis photoelectric switches 13 and Y-axis photoelectric switches 14, thereby achieving precise positioning of the pipette head 3 above the experimental platform.

[0040] 2. Multi-channel pipetting mechanism: This includes several pipetting heads 3, each corresponding to a single pipetting channel. The pipetting heads 3 are connected to a peristaltic pump 5 via connecting pipes. The peristaltic pump 5 serves as the power source for liquid transport, and its speed can be adjusted to precisely control the liquid flow rate, enabling accurate pipetting of different volumes of liquid. Each pipetting channel is equipped with a flow switch 16, which monitors the liquid flow status and flow rate in real time and feeds the monitoring signal back to the control system 9. When the liquid flow rate becomes abnormal, the control system 9 can react promptly, adjusting the speed of the peristaltic pump 5 or stopping the pipetting operation to ensure the accuracy and safety of the pipetting.

[0041] 3. Locking structure: The pipette is inserted into the U-shaped hole in the middle of the pipette fixing head 10 of the pipette head 3. After the pipette passes through the pressure ring 11 and the pipette locking head 12 of the pipette head 3, the pressure ring 11 adopts an inverted trapezoidal design. When the pipette locking head 12 is screwed in, the pressure ring 11 and the thread can effectively lock the pipette, ensuring the reliability and stability of the liquid during the pipetting process and avoiding the impact on experimental results or the creation of safety hazards due to liquid leakage.

[0042] 4. Control System: The control system 9 is connected to the stepper servo actuator motors of the X-axis robotic arm 1 and the Y-axis robotic arm 2, the peristaltic pump 5, and the flow switch 16. The control system 9 receives pipetting commands input by the user, calculates the motion trajectory of the X-axis robotic arm 1 and / or the Y-axis robotic arm 2 and the operating parameters of the peristaltic pump 5 based on the commands, and controls the movement of the X-axis robotic arm 1 and / or the Y-axis robotic arm 2, as well as the start / stop and speed of the peristaltic pump 5, achieving precise control of multi-channel automatic pipetting. Simultaneously, the control system 9 can also process and analyze the signals fed back from the flow switch, monitor the pipetting process in real time, and ensure the smooth execution of the pipetting operation.

[0043] 5. Intelligent liquid level detection: A non-contact liquid level sensor 15 is installed on the side wall of the reaction solvent tank 6. The non-contact liquid level sensor 15 is used to realize an integrated flexible non-contact capacitive liquid level detection method, which can provide real-time feedback on the positioning accuracy of the liquid level in the reaction solvent tank 6 and can trigger an alarm in case of abnormal liquid level.

[0044] 6. Waste liquid recovery: A waste liquid collection box for collecting waste liquid is provided below the pipette head 3; a waste liquid recovery tank 8 connected to the waste liquid pipeline is provided on the side of the reaction solvent tank 6. The waste liquid pipeline is used to transport waste liquid and discharge it into the waste liquid recovery tank 8 under the command of the control system 9.

[0045] In practical use, the method of the automated multichannel automatic pipetting system for automated chemical synthesis experiments according to this utility model is as follows:

[0046] 1. When using the automated chemical synthesis experiment multichannel automatic liquid transfer device of this utility model to carry out chemical synthesis reaction experiments, first put the reagents to be used into the reagent container 18 and place them in the designated positions on the experimental table, and also place the reaction container 17 in the corresponding position.

[0047] 2. Users input pipetting instructions through the operation interface of control system 9. The pipetting instructions include information such as the type of reagent to be pipetted, the volume of pipetting, and the target container for pipetting.

[0048] 3. After receiving the pipetting command, the control system 9 calculates the motion trajectory of the X-axis robotic arm 1 and the Y-axis robotic arm 2 and the working parameters of the stepper servo push rod motor according to the preset algorithm, and controls the X-axis robotic arm 1 and the Y-axis robotic arm 2 to move the pipetting head 3 above the designated reagent container 18.

[0049] 4. Once the pipette tip 3 reaches the designated position, the control system 9 activates the corresponding peristaltic pump 5. The speed of the peristaltic pump 5 is adjusted according to the set pipetting volume. The peristaltic pump 5 uses its squeezing action to draw the reagent from the reagent container 18 into the connecting pipe and deliver it to the pipette tip 3. During the liquid delivery process, the flow switch 16 monitors the liquid flow rate in real time and feeds the monitoring signal back to the control system 9.

[0050] 5. When the volume of liquid transferred reaches the set value, the control system 9 controls the peristaltic pump 5 to stop working, and then controls the X-axis robotic arm 1 and Y-axis robotic arm 2 to move the pipette head 3 above the reaction container 17, and restarts the peristaltic pump 5 to accurately inject the reagent into the reaction container 17.

[0051] 6. Repeat the above steps to complete the multi-channel liquid transfer operation in sequence, so as to achieve accurate proportioning and automatic liquid transfer of various reagents in chemical synthesis reaction experiments.

[0052] 7. After the pipetting operation is completed, the liquid recovery process will be started. The control system 9 will control the peristaltic pump 5 to adjust the flow direction and discharge the remaining reagent in the pipetting head 3 into the reagent container 18 in the opposite direction, thus completing the reagent recovery.

[0053] In summary, by utilizing the above-mentioned technical solution of this utility model, through precise control of the mechanical motion mechanism and collaborative design of the multi-channel pipetting mechanism, accurate positioning and stable and reliable flow of multi-channel pipetting are achieved, effectively solving the problems of inaccurate multi-channel pipetting control and liquid leakage; combined with intelligent liquid level monitoring and automated recovery mechanism, the overall goal of improving the proportioning accuracy, operational safety and automation efficiency of chemical synthesis experiments is achieved.

[0054] 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 multichannel automated pipetting system for automated chemical synthesis experiments, characterized in that, The system includes a mechanical motion mechanism, a multi-channel pipetting mechanism, a locking structure, and a control system (9); the mechanical motion mechanism includes an X-axis robotic arm (1) and a Y-axis robotic arm (2) arranged perpendicularly to each other, which together form a planar motion coordinate system; the X-axis robotic arm (1) and the Y-axis robotic arm (2) are both driven by stepper servo push rod motors and are respectively equipped with an X-axis photoelectric switch (13) and a Y-axis photoelectric switch (14) for displacement calibration; the multi-channel pipetting mechanism includes at least two pipetting heads (3), each pipetting head (3) independently forming a pipetting channel; each pipetting channel is connected to a peristaltic pump (5) through a connecting pipe and each pipetting channel has A flow switch (16) is provided for real-time monitoring of liquid flow rate; the locking structure includes a pipetting head (10), a pressure ring (11) and a pipetting locking head (12); the pipette is sequentially inserted into the U-shaped hole of the pipetting head (10), the pressure ring (11) and the pipetting locking head (12). The pressure ring (11) adopts an inverted trapezoidal design and presses the pipette when screwed into the pipetting locking head (12) by thread; the control system (9) is connected to the stepper servo push rod motor, the peristaltic pump (5) and the flow switch (16) respectively, and is used to receive pipetting instructions, calculate motion trajectory and pump parameters, control pipetting operation and process flow feedback signals.

2. The multichannel automated pipetting system for automated chemical synthesis experiments according to claim 1, characterized in that, It also includes an intelligent liquid level detection unit and a waste liquid recovery unit; the intelligent liquid level detection unit is a non-contact liquid level sensor (15) installed on the side wall of the reaction solvent tank (6) for real-time detection of liquid level and alarm; the waste liquid recovery unit includes a waste liquid collection box (4) located below the pipette head (3) and a waste liquid recovery tank (8) connected to the waste liquid pipeline, the waste liquid pipeline being controlled by the control system (9) to transport waste liquid.

3. The multichannel automated liquid handling system for automated chemical synthesis experiments according to claim 1, characterized in that, The X-axis robotic arm (1) and Y-axis robotic arm (2) adopt a high-precision linear guide and slider structure; the peristaltic pump (5) controls the liquid delivery flow rate by adjusting the rotation speed.

4. The multichannel automated pipetting system for automated chemical synthesis experiments according to claim 1, characterized in that, When the flow switch (16) detects an abnormal flow rate, the control system (9) automatically adjusts the speed of the peristaltic pump (5) or stops the pipetting operation.

5. The automated multichannel automatic pipetting system for automated chemical synthesis experiments according to claim 2, characterized in that, The inverted trapezoidal conical surface of the pressure ring (11) forms a linear extrusion structure with the internal thread of the pipetting locking head (12), and the pipetting tube is fixed by radial locking force; the non-contact liquid level sensor (15) adopts a flexible capacitive liquid level detection method, and the data of the non-contact liquid level sensor (15) is transmitted to the control system (9) in real time. When the liquid level is lower than the threshold, an audible and visual alarm is triggered.

6. The multichannel automated liquid handling system for automated chemical synthesis experiments according to claim 2, characterized in that, The waste liquid recovery tank (8) is located on the side of the reaction solvent tank (6), and the waste liquid pipeline transportation path is controlled by the control system (9).

7. The multichannel automated liquid handling system for automated chemical synthesis experiments according to claim 1, characterized in that, The stepper servo push rod motor is connected to the X-axis robotic arm (1) and the Y-axis robotic arm (2) through a transmission mechanism, and the displacement accuracy is calibrated in real time by the X-axis photoelectric switch (13) and the Y-axis photoelectric switch (14).

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