A solution volume determination and transfer robot for chemical analysis

Abstract

The invention relates to the technical field of solution preparation and volume determination, in particular to a solution volume determination and transfer manipulator for chemical analysis, comprising a mechanical arm, a volumetric flask being placed below the mechanical arm, and an efficient volume determination mechanism being installed at the end of the mechanical arm. The invention adopts a plurality of drippers, and compared with the dripper of a single rubber-tipped dropper in the prior art, the volume of a single water droplet is reduced, the potential energy thereof is reduced, the water splash aroused by subsequent falling becomes smaller, and the time for the liquid surface to return to calm is further shortened. Moreover, the aroused water splash becomes smaller, so that the dripper can be closer to the liquid surface of the volumetric flask, further shortening the time for the liquid surface to return to calm. Furthermore, in the prior art, water ripples generated by the collision of a single water droplet with the liquid surface of the volumetric flask can only contact with the inner side wall of the volumetric flask to consume kinetic energy, while in the invention, a plurality of water ripples spread on the liquid surface of the volumetric flask, the ripples contact and consume each other, again shortening the time for the liquid surface to return to calm, and improving the volume determination efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of solution preparation and volume determination, in particular to a solution volume determination and transfer manipulator for chemical analysis. Background Art

[0002] Solution volume determination is a key step in chemical experiments, which ensures that the prepared solution has an accurate concentration. Volumetric flasks are usually used as volume determination containers because they have precise graduations and fixed volumes, which can ensure accurate preparation of solutions. The choice of containers should take into account the properties of the solution and the corrosion resistance of the container. Glass containers are often selected due to their excellent corrosion resistance.

[0003] During the specific test, when the experimenter adds the dissolved liquid and the solid to the volumetric flask to 1-2 cm from the scale line of the volumetric flask, he uses a rubber-tipped dropper to add water drop by drop to the scale line. The experimenter's line of sight should be level with the lowest point of the concave liquid surface to ensure the accuracy of the water addition. To ensure the accuracy of the preparation, multiple drops are required when the rubber-tipped dropper is used subsequently. The labor intensity of the experimenter is high and it is time-consuming, resulting in low preparation efficiency. Especially for the volume adjustment of large quantities of solution, the above defects are more obvious. Summary of the invention

[0004] In response to the above problems, the present application provides a solution volume determination and transfer robot for chemical analysis, which solves the problem in the prior art that in order to ensure the accuracy of preparation, multiple dropwise additions need to be made when using a rubber-tipped dropper, which is labor-intensive and time-consuming for experimenters, resulting in low preparation efficiency, especially when determining the volume of large quantities of solutions, the above defects are more obvious.

[0005] The technical solution of the present invention is:

[0006] A solution volume determination and transfer robot for chemical analysis, comprising a robot arm, a volumetric flask is placed below the robot arm, an efficient volume determination mechanism is installed at the end of the robot arm, the efficient volume determination mechanism comprises an extrusion tube and a piston plate for adding a dissolving solution to the volumetric flask, a conical frame is connected to the bottom of the extrusion tube, and a plurality of drippers for dispersing water droplets are evenly fixed and connected and installed at the bottom of the conical frame;

[0007] A large electric push rod for controlling the distance between the dripper and the liquid level of the volumetric flask is fixedly connected to the top of the squeeze tube;

[0008] A liquid injection mechanism for accelerating the liquid on the side wall of the volumetric flask is installed on the outside of the extrusion tube. The liquid injection mechanism includes a circle of gas injection unit nozzles, and the axis of the nozzle gas outlet is in contact with the side wall of the volumetric flask.

[0009] Furthermore, a mounting plate is fixedly installed at the end of the robotic arm, a plurality of L-shaped rods are evenly fixedly installed on the outside of the mounting plate, electromagnets are fixedly installed at the bottom of the L-shaped rods, a support plate is installed on the periphery of the electromagnets in contact with each other, and a plurality of adsorption grooves that are plugged into and matched with the electromagnets are opened on the top of the support plate.

[0010] Furthermore, the top of the large electric push rod is fixedly mounted on the bottom of the mounting plate, a small electric push rod is fixedly mounted on the top of the inner side of the extrusion tube, the small electric push rod is electrically connected to the large electric push rod, a piston plate is fixedly mounted on the telescopic end of the small electric push rod, and the piston plate is slidably mounted on the inner side of the extrusion tube;

[0011] The top of the conical frame at the bottom of the extrusion tube is connected and fixedly installed with a liquid outlet one-way valve.

[0012] Furthermore, a liquid storage tank is fixedly installed on the outside of the extrusion tube, and a liquid inlet one-way valve is fixedly installed between the outside of the liquid storage tank near the bottom and the extrusion tube, and the liquid inlet one-way valve is located below the piston plate.

[0013] Furthermore, a fixing plate is fixedly installed on the outside of the L-shaped rod, an air chamber is fixedly installed on the top of the fixing plate, an extrusion plate is slidably installed on the inside of the air chamber, and a linkage rod is fixedly installed between the top of the extrusion plate and the outside of the extrusion tube.

[0014] Furthermore, the outer side of the gas bin near the bottom is connected and fixedly installed with an air outlet one-way valve, the outer side of the air outlet one-way valve is connected and fixedly installed with a connecting pipe, the end of the connecting pipe is connected and fixedly installed with a hollow jet frame, the hollow jet frame is fixedly connected to the fixed plate, and the nozzle is connected and fixedly installed at the bottom of the hollow jet frame.

[0015] Furthermore, an air intake one-way valve is fixedly installed on the outer side of the air bin near the bottom.

[0016] Furthermore, a linear displacement mechanism is fixedly installed on the top of the mechanical arm, and a traveling frame is installed on the outside of the linear displacement mechanism.

[0017] Furthermore, a conveying mechanism is installed at the bottom of the support plate.

[0018] Furthermore, a connecting rod is fixedly installed on the bottom of the fixing plate, a visual detection unit is fixedly connected to the bottom of the connecting rod, and the visual detection unit is electrically connected to the small electric push rod.

[0019] The beneficial effects of the present invention are as follows:

[0020] (1) The present invention discloses a solution volume determination and transfer robot for chemical analysis. Before volume determination, gas is sprayed from a nozzle toward the inner wall of the volumetric flask to accelerate the falling of the dissolved solution adhered to the inner wall of the volumetric flask, thereby ensuring that the subsequent volume determination results are more accurate. The prior art mostly adopts a static method. The present invention can greatly shorten the static time and improve the test efficiency.

[0021] (2) The present invention discloses a manipulator for volume determination and transfer of chemical analysis solution. When determining the volume, the large electric push rod drives the dripper closer to the liquid surface of the volumetric flask, thereby reducing the gravitational potential energy of the solution flowing out of the dripper, thereby reducing the subsequent splashes of the solution in the volumetric flask. The liquid surface returns to calm faster, and the visual detection unit can more quickly capture the accurate liquid level, thereby improving the efficiency of volume determination.

[0022] By using multiple drippers, compared with the dripper of a single rubber-tipped dropper in the prior art, the volume of a single water drop is reduced, its potential energy is reduced, the splash caused by subsequent falling becomes smaller, and the time for the liquid surface to return to calm is further shortened. In addition, the splash caused is smaller, so that the dripper can be closer to the liquid surface of the volumetric flask, further shortening the time for the liquid surface to return to calm. Furthermore, in the prior art, water ripples generated by the collision of a single water drop with the liquid surface of the volumetric flask can only contact with the inner wall of the volumetric flask to consume kinetic energy, while in the present invention, multiple water ripples spread on the liquid surface of the volumetric flask, and the ripples contact and consume each other, which once again shortens the time for the liquid surface to return to calm and improves the volume setting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Figure 1 A schematic diagram of the overall structure of a solution volume determination and transfer robot for chemical analysis provided by the present invention;

[0025] Figure 2 A schematic diagram of the connection of a mounting plate of a solution volume determination and transfer robot for chemical analysis provided by the present invention;

[0026] Figure 3 for Figure 2 A magnified image of point A;

[0027] Figure 4 A schematic diagram of the internal structure of a gas chamber of a solution volume determination and transfer robot for chemical analysis provided by the present invention;

[0028] Figure 5 A schematic diagram of the internal structure of an extrusion tube of a solution volume determination and transfer robot for chemical analysis provided by the present invention.

[0029] In the figure:

[0030] 1. Walking rack;

[0031] 2. Linear displacement mechanism;

[0032] 3. Robotic arm;

[0033] 4. High-efficiency constant volume mechanism; 41. Mounting plate; 42. Electromagnet; 43. Large electric push rod; 44. Extrusion tube; 45. Liquid storage tank; 46. Liquid inlet check valve; 47. Piston plate; 48. Liquid outlet check valve; 49. Conical frame; 410. Dripper; 411. Support plate; 412. Adsorption tank; 413. L-shaped rod; 414. Small electric push rod;

[0034] 5. Liquid injection mechanism; 51. Linkage rod; 52. Air chamber; 53. Extrusion plate; 54. Air inlet check valve; 55. Fixed plate; 56. Air outlet check valve; 57. Connecting pipe; 58. Hollow injection frame; 59. Nozzle; 510. Connecting rod; 511. Visual inspection unit;

[0035] 6. Conveying mechanism;

[0036] 7. Volumetric flask. DETAILED DESCRIPTION

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0038] As shown in Figure 1- Figure 5 As shown, an embodiment of the present invention provides a solution volume determination and transfer robot for chemical analysis, including a robot arm 3, a volumetric flask 7 is placed below the robot arm 3, and an efficient volume determination mechanism 4 for rapid volume determination is installed at the end of the robot arm 3, and the efficient volume determination mechanism 4 includes an extrusion tube 44 and a piston plate 47 for adding a dissolving solution to the volumetric flask 7 for volume determination, and a conical frame 49 is connected to the bottom of the extrusion tube 44, and a plurality of drippers 410 for dispersing water droplets are evenly fixed and connected and installed at the bottom of the conical frame 49, and the large water droplets added are decomposed into small water droplets for the volume determination operation of a single rubber-tipped dropper in the prior art;

[0039] A large electric push rod 43 is fixedly connected to the top of the squeeze tube 44 for controlling the distance between the dripper 410 and the liquid level of the volumetric flask 7, thereby reducing the distance between the drop of dissolved liquid and the liquid level, thereby reducing its gravitational potential energy;

[0040] A liquid injection mechanism 5 for accelerating the drop of liquid on the side wall of the volumetric flask 7 is installed outside the extrusion tube 44 . The liquid injection mechanism 5 includes a circle of gas injection unit nozzles 59 , and the axis of the gas outlet of the nozzle 59 is in contact with the side wall of the volumetric flask 7 .

[0041] In this embodiment, the gas sprayed from the nozzle 59 can accelerate the falling of the dissolved liquid adhering to the inner wall of the volumetric flask 7, thereby ensuring that the subsequent volume determination results are more accurate. The prior art mostly adopts a static method, and the present invention can greatly shorten the static time and improve the test efficiency.

[0042] Specifically, a mounting plate 41 is fixedly installed at the end of the robotic arm 3, a plurality of L-shaped rods 413 are evenly fixedly installed on the outside of the mounting plate 41, an electromagnet 42 is fixedly installed at the bottom of the L-shaped rod 413, a support plate 411 is installed on the periphery of the electromagnet 42 in contact with each other, the electromagnet 42 is energized and becomes magnetic, and is adsorbed to the support plate 411, and the robotic arm 3 can subsequently drive the mounting plate 41, the support plate 411, and the volumetric flask 7 to move, and a plurality of adsorption grooves 412 that are plugged into and matched with the electromagnet 42 are provided on the top of the support plate 411, so as to increase the adsorption area and improve the stability.

[0043] Specifically, a conveying mechanism 6 is installed at the bottom of the support plate 411 for moving the support plate 411 and the volumetric flask 7 .

[0044] In this embodiment, the staff manually or with the help of a machine puts the solution ingredients into the volumetric flask 7, adds the dissolving liquid until the liquid level of the dissolving liquid is a certain distance away from the scale line of the volumetric flask 7. The distance here can be freely adjusted by the staff. This belongs to the prior art and will not be repeated in this article. Then the volumetric flask 7 is placed on the support plate 411 of the conveying mechanism 6 and transported to the next workstation by the conveying mechanism 6.

[0045] Specifically, the top of the large electric push rod 43 is fixedly installed on the bottom of the mounting plate 41, and a small electric push rod 414 is fixedly installed on the top of the inner side of the extrusion tube 44. The small electric push rod 414 is electrically connected to the large electric push rod 43. Every time the small electric push rod 414 is extended, the liquid level of the volumetric flask 7 rises, and an electrical signal is sent to the data processor. The data processor sends an electrical signal to the large electric push rod 43, and the telescopic end of the large electric push rod 43 is shortened, driving the dripper 410 to move up and maintain a set distance from the liquid level of the volumetric flask 7. The piston plate 47 is fixedly installed on the telescopic end of the small electric push rod 414, and the piston plate 47 is slidably installed on the inner side of the extrusion tube 44. The top of the conical frame 49 at the bottom of the extrusion tube 44 is connected and fixedly installed with a liquid outlet one-way valve 48.

[0046] In this embodiment, the telescopic end of the small electric push rod 414 is extended, driving the piston plate 47 to move downward to squeeze the dissolved liquid inside the squeezing tube 44. At this time, the liquid outlet one-way valve 48 is opened and the liquid inlet one-way valve 46 is closed. The dissolved liquid inside the squeezing tube 44 drips into the volumetric flask 7 from the conical frame 49 and the dripper 410. The large electric push rod 43 drives the dripper 410 to be closer to the liquid surface of the volumetric flask 7, and the water splashes generated by the constant volume will not splash upward to the dripper 410, thereby reducing the gravitational potential energy of the dissolved liquid flowing out of the dripper 410, thereby reducing the subsequent splashes of water impacting the dissolved liquid inside the volumetric flask 7, and the liquid surface returns to calm faster, and the visual detection unit 511 can capture the accurate liquid level more quickly. , improve the volume setting efficiency. Compared with the dripper of a single rubber-tipped dropper in the prior art, the volume of a single water droplet of multiple drippers 410 is reduced, its potential energy is reduced, the splash caused by subsequent falling becomes smaller, and the time for the liquid surface to return to calm is further shortened. In addition, the splash caused is smaller, so that the dripper 410 can be closer to the liquid surface of the volumetric flask 7, further shortening the time for the liquid surface to return to calm. Furthermore, in the prior art, the water ripples generated by the collision of a single water drop with the liquid surface of the volumetric flask 7 can only contact with the inner wall of the volumetric flask 7 to consume kinetic energy, while in the present invention, multiple water ripples spread on the liquid surface of the volumetric flask 7, and the ripples contact and consume each other, which once again shortens the time for the liquid surface to return to calm, thereby improving the volume setting efficiency.

[0047] Specifically, a liquid storage tank 45 is fixedly installed on the outside of the squeeze tube 44 for storing the dissolved liquid and replenishing it into the squeeze tube 44. A liquid inlet check valve 46 is fixedly installed between the outside of the liquid storage tank 45 near the bottom and connected to the squeeze tube 44. The liquid inlet check valve 46 is located below the piston plate 47.

[0048] Specifically, a fixing plate 55 is fixedly installed on the outer side of the L-shaped rod 413, an air chamber 52 is fixedly installed on the top of the fixing plate 55, an extrusion plate 53 is slidably installed on the inner side of the air chamber 52 for changing the internal pressure of the air chamber 52, and a linkage rod 51 is fixedly installed between the top of the extrusion plate 53 and the outer side of the extrusion tube 44.

[0049] In this embodiment, the robotic arm 3 drives the electromagnet 42 to enter the adsorption groove 412, and the telescopic end of the large electric push rod 43 extends, driving the extrusion tube 44, the dripper 410, and the linkage rod 51 to move downward into the interior of the volumetric flask 7. The linkage rod 51 drives the extrusion plate 53 to move downward to squeeze the gas inside the gas warehouse 52. At this time, the air inlet check valve 54 is closed and the air outlet check valve 56 is opened. The gas is sprayed from the air outlet check valve 56, the connecting pipe 57, the hollow jet rack 58, and the nozzle 59 to the inner wall of the volumetric flask 7, accelerating the falling of the dissolved liquid adhered to the inner wall of the volumetric flask 7, thereby ensuring that the subsequent constant volume results are more accurate. The prior art mostly adopts a static method. The present invention can greatly shorten the static time and improve the test efficiency.

[0050] Specifically, a connecting rod 510 is fixedly installed at the bottom of the fixing plate 55 , and a visual detection unit 511 is fixedly connected to the bottom of the connecting rod 510 . The visual detection unit 511 will detect the liquid level of the volumetric flask 7 at all times, and the visual detection unit 511 is electrically connected to the small electric push rod 414 .

[0051] In this embodiment, when the liquid level of the volumetric flask 7 approaches the scale line, the visual detection unit 511 controls the extension distance of the telescopic end of the small electric push rod 414 through data processing, thereby changing the single liquid output of the dripper 410.

[0052] Specifically, the outer side of the gas bin 52 near the bottom is connected and fixedly installed with an air outlet one-way valve 56, the outer side of the air outlet one-way valve 56 is connected and fixedly installed with a connecting pipe 57, the end of the connecting pipe 57 is connected and fixedly installed with a hollow jet frame 58, the hollow jet frame 58 is fixedly connected to the fixing plate 55, and the nozzle 59 is connected and fixedly installed at the bottom of the hollow jet frame 58.

[0053] Specifically, an air intake check valve 54 is fixedly installed on the outer side of the air bin 52 near the bottom.

[0054] Specifically, a linear displacement mechanism 2 is fixedly installed on the top of the mechanical arm 3 , and a traveling frame 1 is installed on the outer side of the linear displacement mechanism 2 .

[0055] In this embodiment, after the volume is set, the large electric push rod 43 and the small electric push rod 414 drive the various components to reset, the liquid storage tank 45 replenishes the dissolved liquid into the extrusion tube 44, and the gas chamber 52 sucks in the supplementary gas from the outside. The specific working process is obvious to the staff in this field and will not be repeated in this article. Then the electromagnet 42 is energized to adsorb the support plate 411, and the volumetric flask 7 and the support plate 411 after the volume is set are transported to the next workstation through the linear displacement mechanism 2 and the robotic arm 3.

[0056] How it works:

[0057] The staff manually or with the help of a machine puts the solution ingredients into the volumetric flask 7, adds the dissolving liquid until the liquid level of the dissolving liquid is a certain distance away from the scale line of the volumetric flask 7. The distance here can be freely adjusted by the staff. This belongs to the prior art and will not be repeated in this article. Then the volumetric flask 7 is placed on the support plate 411 of the conveying mechanism 6 and transported to the next workstation by the conveying mechanism 6.

[0058] The mechanical arm 3 drives the electromagnet 42 to enter the adsorption groove 412, and the telescopic end of the large electric push rod 43 extends, driving the squeezing tube 44, the dripper 410, and the linkage rod 51 to move downward into the volumetric flask 7. The linkage rod 51 drives the squeezing plate 53 to move downward to squeeze the gas inside the gas chamber 52. At this time, the air inlet check valve 54 is closed and the air outlet check valve 56 is opened. The gas is sprayed from the air outlet check valve 56, the connecting pipe 57, the hollow jet rack 58, and the nozzle 59 to the inner wall of the volumetric flask 7, accelerating the falling of the dissolved liquid adhered to the inner wall of the volumetric flask 7, thereby ensuring that the subsequent constant volume result is more accurate. The existing technology mostly adopts the static method, and the present invention can greatly shorten the static time and improve the test efficiency;

[0059] The telescopic end of the small electric push rod 414 extends, driving the piston plate 47 to move downward to squeeze the dissolved liquid in the squeezing tube 44. At this time, the liquid outlet one-way valve 48 is opened and the liquid inlet one-way valve 46 is closed. The dissolved liquid in the squeezing tube 44 drips into the volumetric flask 7 from the conical frame 49 and the dripper 410. The large electric push rod 43 drives the dripper 410 to be closer to the liquid surface of the volumetric flask 7, and the water splashes generated by the constant volume will not splash upward to the dripper 410, thereby reducing the gravitational potential energy of the dissolved liquid flowing out of the dripper 410, thereby reducing the subsequent splashes of water that collide with the dissolved liquid in the volumetric flask 7, and the liquid surface returns to calm faster, and the visual detection unit 511 can capture the accurate liquid level more quickly, thereby improving Regarding the volume setting efficiency, compared with the dripper of a single rubber-tipped dropper in the prior art, the volume of a single water droplet of the multiple drippers 410 is reduced, and its potential energy is reduced. The splash caused by the subsequent fall becomes smaller, and the time for the liquid surface to return to calm is further shortened. In addition, the smaller the splash caused, the dripper 410 can be closer to the liquid surface of the volumetric flask 7, further shortening the time for the liquid surface to return to calm. Furthermore, in the prior art, the water ripples generated by the collision of a single water drop with the liquid surface of the volumetric flask 7 can only contact with the inner wall of the volumetric flask 7 to consume kinetic energy, while in the present invention, multiple water ripples diffuse on the liquid surface of the volumetric flask 7, and the ripples contact and consume each other, which once again shortens the time for the liquid surface to return to calm, thereby improving the volume setting efficiency.

[0060] Each time the small electric push rod 414 is extended, the liquid level in the volumetric flask 7 rises and sends an electrical signal to the data processor. The data processor sends an electrical signal to the large electric push rod 43. The telescopic end of the large electric push rod 43 shortens, driving the dripper 410 to move up and maintain a set distance from the liquid level in the volumetric flask 7. The visual detection unit 511 will constantly detect the liquid level in the volumetric flask 7. When the liquid level in the volumetric flask 7 is close to the scale line, the visual detection unit 511 controls the extension distance of the telescopic end of the small electric push rod 414 through data processing, thereby changing the single liquid output of the dripper 410.

[0061] After the volume is set, the large electric push rod 43 and the small electric push rod 414 drive the various components to reset, the liquid storage tank 45 replenishes the dissolved liquid into the extrusion tube 44, and the gas chamber 52 sucks in the supplementary gas from the outside. The specific working process is obvious to the staff in this field and will not be repeated in this article. Then the electromagnet 42 is energized to adsorb the support plate 411, and the volumetric flask 7 and the support plate 411 after the volume is set are transported to the next workstation through the linear displacement mechanism 2 and the robotic arm 3.

[0062] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A robot for volume determination and transfer of chemical analysis solution, comprising a robot arm (3), a volumetric flask (7) being placed below the robot arm (3), characterized in that: The end of the mechanical arm (3) is equipped with an efficient volume-fixing mechanism (4), the efficient volume-fixing mechanism (4) comprising an extrusion tube (44) and a piston plate (47) for adding a dissolving liquid to the volumetric flask (7) to a constant volume, the bottom of the extrusion tube (44) being connected to a conical frame (49), the bottom of the conical frame (49) being evenly fixedly connected and equipped with a plurality of drippers (410) for dispersing water droplets; A large electric push rod (43) for controlling the distance between the dripper (410) and the liquid level in the volumetric flask (7) is fixedly connected to the top of the squeezing tube (44); A liquid injection mechanism (5) for accelerating the drop of liquid on the side wall of the volumetric flask (7) is installed outside the extrusion tube (44). The liquid injection mechanism (5) includes a circle of gas injection unit nozzles (59). The axis of the gas outlet of the nozzles (59) is in contact with the side wall of the volumetric flask (7).

2. A chemical analysis solution volume determination and transfer robot as claimed in claim 1, characterized in that: A mounting plate (41) is fixedly mounted on the end of the mechanical arm (3); a plurality of L-shaped rods (413) are evenly fixedly mounted on the outside of the mounting plate (41); electromagnets (42) are fixedly mounted on the bottom of the L-shaped rods (413); a support plate (411) is mounted on the periphery of the electromagnets (42) in contact with each other; and a plurality of adsorption grooves (412) are provided on the top of the support plate (411) and are plugged into and matched with the electromagnets (42).

3. A chemical analysis solution volume determination and transfer robot as claimed in claim 2, characterized in that: The top of the large electric push rod (43) is fixedly mounted on the bottom of the mounting plate (41), a small electric push rod (414) is fixedly mounted on the top of the inner side of the extrusion tube (44), the small electric push rod (414) is electrically connected to the large electric push rod (43), a piston plate (47) is fixedly mounted on the telescopic end of the small electric push rod (414), and the piston plate (47) is slidably mounted on the inner side of the extrusion tube (44); A liquid outlet one-way valve (48) is fixedly installed between the bottom of the extrusion tube (44) and the top of the conical frame (49).

4. A chemical analysis solution volume determination and transfer robot as claimed in claim 1, characterized in that: A liquid storage tank (45) is fixedly mounted on the outside of the squeeze tube (44); a liquid inlet check valve (46) is fixedly mounted between the outside of the liquid storage tank (45) near the bottom and the squeeze tube (44); the liquid inlet check valve (46) is located below the piston plate (47).

5. A chemical analysis solution volume determination and transfer robot as claimed in claim 2, characterized in that: A fixing plate (55) is fixedly mounted on the outside of the L-shaped rod (413), an air chamber (52) is fixedly mounted on the top of the fixing plate (55), an extrusion plate (53) is slidably mounted on the inside of the air chamber (52), and a linkage rod (51) is fixedly mounted between the top of the extrusion plate (53) and the outside of the extrusion tube (44).

6. A chemical analysis solution volume determination and transfer robot as claimed in claim 5, characterized in that: The outer side of the gas bin (52) near the bottom is connected to and fixedly mounted with an air outlet check valve (56); the outer side of the air outlet check valve (56) is connected to and fixedly mounted with a connecting pipe (57); the end of the connecting pipe (57) is connected to and fixedly mounted with a hollow jet frame (58); the hollow jet frame (58) is fixedly connected to the fixing plate (55); and the nozzle (59) is connected to and fixedly mounted at the bottom of the hollow jet frame (58).

7. A chemical analysis solution volume determination and transfer robot as claimed in claim 5, characterized in that: An air intake check valve (54) is fixedly installed on the outer side of the air bin (52) near the bottom.

8. A chemical analysis solution volume determination and transfer robot as claimed in claim 1, characterized in that: A linear displacement mechanism (2) is fixedly mounted on the top of the mechanical arm (3), and a traveling frame (1) is mounted on the outside of the linear displacement mechanism (2).

9. A chemical analysis solution volume determination and transfer robot as claimed in claim 2, characterized in that: A conveying mechanism (6) is installed at the bottom of the support plate (411).

10. A chemical analysis solution volume determination and transfer robot as claimed in claim 5, characterized in that: A connecting rod (510) is fixedly mounted on the bottom of the fixing plate (55), a visual detection unit (511) is fixedly connected to the bottom of the connecting rod (510), and the visual detection unit (511) is electrically connected to the small electric push rod (414).

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