Device for measuring the electrical conductivity of a sampling probe

Abstract

The utility model discloses a kind of sampling suction head conductivity performance parameter's measuring equipment, comprising: installation bottom plate;Suction head conveying device, the suction head conveying device is set on the installation bottom plate, the suction head conveying device is carried with the sampling suction head to be measured;Detection device, the detection device is set on the installation bottom plate, the detection device includes the electrically conductive device for with sampling suction head contact to carry out conductivity parameter measurement;Mechanical arm, the mechanical arm is set on the installation bottom plate, the mechanical arm includes guide rail assembly and the detection needle installed on the guide rail assembly. Through the cooperation of mechanical arm and guide rail assembly, the quick, accurate measurement of sampling suction head conductivity performance parameter is realized, the measurement efficiency and precision are improved, and the error and labor intensity of manual operation are reduced.

Description

Technical Field

[0001] This utility model relates to the field of automation equipment technology, specifically to a device for measuring the conductivity parameters of a sampling tip. Background Technology

[0002] In modern laboratory and industrial applications, sampling pipette tips, as tools for the precise aspiration and transfer of minute amounts of liquid, have conductivity properties that are crucial for certain experimental and production processes. For example, in fields such as biochemical analysis, drug development, and microelectronics manufacturing, the conductivity of sampling pipette tips can affect the accuracy of experimental results or the quality of products. Traditional methods for measuring the conductivity parameters of sampling pipette tips typically require manual operation, which is not only time-consuming and labor-intensive but also prone to introducing operational errors, affecting measurement accuracy and repeatability.

[0003] In existing technologies, the measurement of conductivity parameters of sampling tips typically employs manual or semi-automatic methods. These methods include the use of traditional electronic measuring equipment such as multimeters, bridges, and LCR meters. Operators need to manually install the tip onto the measuring device and perform a series of measurement steps. This method is not only time-consuming but also susceptible to the operator's skill level, leading to inconsistent and poor repeatability of measurement results.

[0004] Furthermore, existing measurement methods typically cannot provide a continuous measurement process, meaning that changes in the conductivity parameters of the suction tip cannot be monitored in real time, thus hindering the timely detection and correction of problems in the production process. In large-scale production environments, this delay can lead to a large number of defective products, resulting in wasted resources and increased costs.

[0005] Therefore, there is an urgent need for a device that can automatically measure the conductivity parameters of the sampling tip to improve measurement efficiency, accuracy, and repeatability, while reducing errors and costs associated with manual operation, thereby ensuring product quality and improving production efficiency. Utility Model Content

[0006] Therefore, this utility model provides a device for measuring the conductivity parameters of a sampling tip to solve at least one of the above-mentioned technical problems.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] This utility model provides a device for measuring the conductivity parameters of a sampling pipette tip, comprising:

[0009] Install base plate;

[0010] A suction tip conveying device is mounted on the mounting base plate and carries a sampling suction tip to be tested.

[0011] A detection device is mounted on the mounting base plate. The detection device includes a conductive device for contacting a sampling tip to measure conductivity parameters. A signal line from the detection device is connected to a first circuit board, which is connected to an external electronic device for communication via a signal transmission line.

[0012] A robotic arm is mounted on a mounting base plate. The robotic arm includes a guide rail assembly and a detection pin mounted on the guide rail assembly. A signal line from the detection pin in the robotic arm is connected to a second circuit board, and the second circuit board is connected to a first circuit board via a signal line. The guide rail assembly includes a horizontal motor, a vertical motor, a horizontal guide rail, a horizontal slider, a vertical guide rail, and a vertical slider. The horizontal guide rail is mounted on the mounting base plate. The horizontal slider moves along the horizontal guide rail under the drive of the horizontal motor. The vertical guide rail is mounted on the horizontal slider. The vertical slider moves along the vertical guide rail under the drive of the vertical motor. The detection pin is mounted on the vertical slider.

[0013] A suction head removal structure is disposed on the mounting base plate;

[0014] The outer casing is mounted on the mounting base plate. The outer casing has a suction head unloading clearance hole, a detection clearance hole, and a suction head conveying clearance hole. The suction head unloading clearance hole corresponds to the location of the suction head structure, the detection clearance hole corresponds to the location of the detection device, and the suction head conveying clearance hole corresponds to the location of the suction head transmission device.

[0015] During operation, the robotic arm, through the movement of the guide rail assembly, accurately inserts the detection probe into the sampling tip, forming a closed circuit with the conductive element of the detection device to measure the conductivity parameters. After measurement, the robotic arm moves the sampling tip to the tip removal structure for removal. In this way, the robotic arm and guide rail assembly enable rapid and accurate measurement of the conductivity parameters of the sampling tip. Furthermore, the tip removal structure eliminates the need for manual release of the tip after testing, reducing errors and labor intensity associated with manual operation. The outer shell structure not only provides protection but also, through multiple clearance holes, prevents interference between the shell and other structures, resulting in a more rational design.

[0016] In some embodiments, the suction head conveying device includes:

[0017] Place the suction head on the tray;

[0018] A suction tip holder is placed on a suction tip placement tray. The suction tip holder has multiple receiving holes, and the sampling suction tips are inserted into the receiving holes one by one.

[0019] The drive mechanism is connected to the suction head placement tray and moves it to a preset suction head position under the action of the drive mechanism.

[0020] In some embodiments, the drive mechanism includes:

[0021] Drive motor;

[0022] A drive pulley is mounted on the output shaft of the drive motor;

[0023] The driven pulley is connected to the drive pulley via a drive belt;

[0024] A linear bearing module, wherein the linear bearing module is mounted on the drive belt and moves with the drive belt;

[0025] A linear bearing module is slidably mounted on the mounting base plate and extends horizontally and is perpendicular to the extension direction of the horizontal guide rail.

[0026] In some embodiments, the detection device includes:

[0027] The conductive element is mounted insulated from the mounting bracket by an insulating block and / or an insulating pad.

[0028] In some embodiments, the suction head structure includes:

[0029] A portal frame, wherein the two side plates of the portal frame are mounted on the mounting base plate;

[0030] A strip-shaped hole is formed on the horizontal plate of the gantry frame. The strip-shaped hole has a first hole section and a second hole section. The diameter of the first hole section is larger than the outer diameter of the sampling tip, and the diameter of the second hole section is smaller than the outer diameter of the sampling tip but larger than the outer diameter of the detection needle.

[0031] In some embodiments, the robotic arm is fixed to the mounting base plate by a support.

[0032] In some embodiments, the measured value is transmitted to the main circuit board via the signal line connected to the conductive device and the signal line on the detection probe. The main circuit board is communicatively connected to an external electronic device to transmit the measured value to the display end of the electronic device. Attached Figure Description

[0033] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0034] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0035] Figure 1 One of the structural schematic diagrams of the device for measuring the conductivity parameters of the sampling tip provided by this utility model;

[0036] Figure 2 The second schematic diagram shows the structure of the device for measuring the conductivity parameters of the sampling tip provided by this utility model.

[0037] Figure 3 This is a schematic diagram of the structure of the sampling tip disassembly head in the device for measuring the conductivity parameters of the sampling tip provided by this utility model.

[0038] Figure 4 This is a schematic diagram of the detection device in the equipment for measuring the conductivity parameters of the sampling tip provided by this utility model.

[0039] Figure 5 This is a schematic diagram of the pipette tip conveying device in the device for measuring the conductivity parameters of the sampling pipette tip provided by this utility model.

[0040] Figure 6 This is a schematic diagram of the structure of the sampling tip in the device for measuring the conductivity parameters of the sampling tip provided by this utility model;

[0041] Figure 7 This is a partial structural schematic diagram of the device for measuring the conductivity parameters of the sampling tip provided by this utility model.

[0042] Explanation of reference numerals in the attached figures:

[0043] 1-Robotic arm, 2-Outer shell, 3-Mounting base plate, 4-Unloading suction head structure;

[0044] 5-Detection device, 501-Insulating block, 502-Conductive device, 503-Insulating pad, 504-Mounting bracket;

[0045] 6-Suction head conveying device, 601-Drive motor, 602-Motor mounting bracket, 603-Optical bar bracket;

[0046] 604 - Linear bearing module, 605 - Optical bar, 606 - Driven pulley, 607 - Drive belt;

[0047] 608 - Nozzle placement tray; 609 - Nozzle holder; 610 - Drive pulley;

[0048] 7-First circuit board, 8-Support post, 9-Suction head, 10-Detection probe, 11-Second circuit board. Detailed Implementation

[0049] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0050] Existing methods for measuring the conductivity parameters of sampling tips typically cannot provide a continuous measurement process. This means that changes in the conductivity parameters of the tips cannot be monitored in real time, making it impossible to detect and correct problems in the production process in a timely manner. In large-scale production environments, this delay may lead to the generation of a large number of defective products, resulting in resource waste and increased costs.

[0051] To address the aforementioned problems in the existing technology, the sampling probe conductivity parameter measuring device provided by this utility model achieves fully automated detection, reduces manual intervention, and can measure a variety of different parameters. This not only improves detection efficiency and reduces the waste of manual labor costs, but also effectively reduces measurement errors caused by manual operation and ensures the consistency of results.

[0052] In one specific implementation, such as Figures 1-7As shown, the sampling tip conductivity parameter measuring device provided by this utility model includes a housing 2, a mounting base plate 3, a tip conveying device 6, a detection device 5, a robotic arm 1, and a control system; wherein, the housing 2 is mounted on the mounting base plate 3, and the housing 2 is provided with a tip unloading clearance hole, a detection clearance hole, and a tip conveying clearance hole. The tip unloading clearance hole corresponds to the location of the tip unloading structure 4, the detection clearance hole corresponds to the location of the detection device 5, and the tip conveying clearance hole corresponds to the location of the tip transmission device. The suction tip conveying device 6 is mounted on the mounting base plate 3, and carries the sampling suction tip to be tested. The detection device 5 is mounted on the mounting base plate 3, and includes a conductive device 502 for contacting the sampling suction tip to measure conductivity parameters. The robotic arm 1 is mounted on the mounting base plate 3, and includes a guide rail assembly and a detection needle mounted on the guide rail assembly. The control system generates motion commands based on the acquired position signals. The motion commands control the robotic arm 1 to pick up the sampling suction tip from the suction tip conveying device 6, move the sampling suction tip above the detection device 5, so that the detection needle is located inside the sampling suction tip, and the sampling suction tip contacts the conductive element of the detection device 5, so that the conductivity parameters of the sampling suction tip are measured by the measurement circuit formed by the detection needle and the conductive element, and the measurement result is output.

[0053] Among them, the robotic arm 1 can be a multi-joint robotic arm, which has higher flexibility and range of motion and can adapt to the measurement needs of sampling tips of different shapes and sizes; or it can be a pneumatic or hydraulically driven robotic arm 1, which has greater driving force and is suitable for handling and measuring larger or heavier sampling tips.

[0054] During operation, under the command of the control system, the robotic arm 1 accurately inserts the detection needle into the sampling tip through the precise movement of the guide rail assembly, forming a closed circuit with the conductive element of the detection device 5 to complete the measurement of conductivity parameters. After the measurement is completed, the robotic arm 1 moves the sampling tip to the removal tip structure 4 for removal. In this way, through the automated robotic arm 1 and the precise guide rail assembly, the conductivity performance parameters of the sampling tip are measured quickly and accurately, improving measurement efficiency and accuracy, and reducing errors and labor intensity caused by manual operation.

[0055] In the above embodiments, the guide rail assembly includes a horizontal motor and a vertical motor, a horizontal guide rail, a horizontal slider, a vertical guide rail, and a vertical slider; wherein, the horizontal guide rail is mounted on the mounting base plate 3, the horizontal slider moves along the horizontal guide rail under the drive of the horizontal motor, the vertical guide rail is mounted on the horizontal slider, the vertical slider moves along the vertical guide rail under the drive of the vertical motor, and the detection probe is mounted on the vertical slider.

[0056] During operation, a horizontal motor drives a horizontal slider along a horizontal guide rail, adjusting the horizontal position of the probe; a vertical motor drives a vertical slider along a vertical guide rail, raising and lowering the probe vertically, thus accurately inserting it into the sampling tip. This precise control of movement in both the horizontal and vertical directions ensures accurate contact between the probe and the sampling tip, improving measurement accuracy and reliability. Besides the guide rail and slider configuration described above, linear modules or flexible guide rail systems can also be used as the guiding motion structure, allowing for adaptive adjustment based on the shape and position of the sampling tip, enhancing the equipment's versatility and adaptability.

[0057] Specifically, the suction tip conveying device 6 includes a suction tip placement tray 608, a suction tip holder 609, and a driving mechanism. The suction tip holder 609 is placed on the suction tip placement tray 608 and has multiple receiving holes. The sampling suction tips are inserted into these receiving holes one by one. The suction tip placement tray 608 is connected to the driving mechanism and moves to a preset suction tip picking position under the action of the driving mechanism. During operation, the driving mechanism moves the suction tip placement tray 608 to the preset suction tip picking position according to the instructions of the control system, enabling the robotic arm 1 to accurately pick up the sampling suction tip to be tested from the suction tip holder 609. This achieves automatic conveying and positioning of the sampling suction tips, improves the automation level and working efficiency of the measuring equipment, and reduces manual intervention.

[0058] In addition to the above structure, the pipette tip conveying device 6 can also adopt a rotary conveyor plate, which can carry multiple sampling pipette tips at the same time and send the sampling pipette tips to the sampling pipette tip position in sequence through the rotation action, which is suitable for the measurement of a large number of sampling pipette tips; or a pneumatic conveying device can be used to use the thrust of airflow to convey the sampling pipette tips from one position to another, which has the characteristics of simple structure and fast operation speed.

[0059] In some embodiments, the driving mechanism includes a drive motor 601, a drive pulley 610, a driven pulley 606, a linear bearing module 604, and a guide bar 605; wherein, the drive pulley 610 is mounted on the output shaft of the drive motor 601, the driven pulley 606 is connected to the drive pulley 610 via a drive belt 607, the linear bearing module is mounted on the drive belt 607 and moves with the drive belt 607; the guide bar 605 is mounted on the mounting base plate 3, the linear bearing module 604 is slidably mounted on the guide bar 605, and the guide bar 605 extends in the horizontal direction and is perpendicular to the extension direction of the horizontal guide rail.

[0060] During operation, the drive motor 601 operates, driving the drive belt 607 via the drive pulley 610 and driven pulley 606. This, in turn, causes the linear bearing module 604 to slide along the guide bar 605, achieving horizontal movement of the suction head placement tray 608. Thus, the combination of belt drive and linear bearing module 604 ensures smooth and precise movement of the suction head placement tray 608, guaranteeing accurate delivery and positioning of the sampling suction heads. It should be understood that to achieve the movement of the suction head delivery device 6, a rack and pinion transmission mechanism can also be used, which has high transmission accuracy and rigidity, providing greater driving force and is suitable for applications requiring high delivery accuracy; alternatively, a screw and nut transmission mechanism can be used, where the motor drives the screw to rotate, causing the nut to move axially along the screw, thereby achieving precise position adjustment of the suction head placement tray 608.

[0061] Specifically, the detection device 5 includes a mounting bracket 504, and the conductive element is insulated from the mounting bracket 504 by an insulating block 501 and / or an insulating pad 503. During operation, when the sampling tip comes into contact with the conductive element, the conductive element is isolated from the mounting bracket 504 by the insulating block 501 and / or the insulating pad 503, preventing current leakage and ensuring the normal operation of the measurement circuit, thereby accurately measuring the conductivity parameters of the sampling tip. The insulated mounting by the insulating block 501 and / or the insulating pad 503 improves the accuracy and safety of the measurement, preventing measurement errors and equipment damage caused by current leakage. In addition to the above-mentioned mounting structure of the insulating block 501 and the insulating pad 503, air insulation can also be used, using air as the insulating medium to isolate the conductive element from the mounting bracket 504, which has the characteristics of simple structure and low cost; or liquid insulating material can be used to fill the gap between the conductive element and the mounting bracket 504, which has good insulation performance and heat dissipation effect.

[0062] Furthermore, the device for measuring the conductivity parameters of the sampling tip also includes a tip removal structure 4, which is mounted on the mounting base plate 3. The control system is also used to control the robotic arm 1 to move the sampling tip to the tip removal structure 4 and remove it after the measurement is completed. During operation, under the command of the control system, the robotic arm 1 moves the completed sampling tip to the tip removal structure 4 and removes the sampling tip from the detection needle through specific actions (such as descent, rotation, etc.), allowing it to fall into the recycling box. This achieves automatic removal and recycling of the sampling tip, further improving the automation level and working efficiency of the measuring equipment and reducing manual intervention and operational risks.

[0063] Specifically, the unloading suction head structure 4 includes a gantry frame and a strip hole; wherein, the two side plates of the gantry frame are mounted on the mounting base plate 3; the strip hole is opened on the horizontal plate of the gantry frame, and the strip hole has a first hole section and a second hole section, the diameter of the first hole section is larger than the outer diameter of the sampling suction head, and the diameter of the second hole section is smaller than the outer diameter of the sampling suction head but larger than the outer diameter of the detection needle.

[0064] During operation, robotic arm 1 moves the sampling tip above the slot in the gantry frame. The detection needle and sampling tip pass through the first slot at the first position. Then, robotic arm 1 continues to move forward, and the detection needle and sampling tip enter the second slot at the second position through the first slot. Robotic arm 1 then moves the detection needle upward. Because the diameter of the second slot is smaller than the outer diameter of the sampling tip, the sampling tip is blocked below the second slot. The detection needle passes through the second slot, achieving retraction and thus separating the sampling tip from the detection needle. In this way, by designing slots of different sizes, automatic removal of the sampling tip is achieved. The structure is simple, reliable, and easy to implement. Besides the above-mentioned different slot sizes, a rotary tip removal device can also be used, which separates the sampling tip from the detection needle through rotation; or a pneumatic tip removal device can be used, which uses the impact force of airflow to blow the sampling tip off the detection needle; or an electromagnetic tip removal device can be used, which separates the sampling tip from the detection needle through electromagnetic force.

[0065] Furthermore, the robotic arm 1 is fixed to the mounting base plate 3 by a support column. In this way, the robotic arm 1 is firmly fixed to the mounting base plate 3 by the support column, which improves the stability and reliability of the robotic arm 1, ensures the precise movement of the robotic arm 1 during the measurement process, and ensures that the robotic arm 1 has sufficient vertical height.

[0066] In some embodiments, the measured values ​​obtained by the detection device 5 and the detection probe are transmitted to the main circuit board via the signal lines connected to the conductive device 502 and the detection probe. The main circuit board is communicatively connected to an external electronic device to transmit the measured values ​​to the display end of the electronic device. During operation, the signal lines on the conductive device 502 and the detection probe transmit the measured conductivity parameter signals to the main circuit board. After processing and converting the signals, the main circuit board transmits the measured values ​​to the external electronic device through a communication interface (such as a serial port, network port, etc.). The display end of the electronic device displays the measured values ​​for the user to view and record, thereby achieving fast and accurate transmission and display of measured values. This facilitates the user's real-time understanding of the conductivity parameters of the sampling tip, improving the practicality of the device and the user experience. The signal line of the detection probe can first be connected to an auxiliary circuit board, and then electrically connected to the main circuit board through the auxiliary circuit board to achieve signal transmission. The measured values ​​can also be transmitted to external electronic devices via wireless communication methods, such as Bluetooth or Wi-Fi, which has the advantages of long transmission distance and no cable limitations; or fiber optic communication can be used, which has the characteristics of strong anti-interference ability and fast transmission speed, and is suitable for occasions with high requirements for measurement accuracy and reliability.

[0067] To facilitate understanding, the following uses a specific application scenario as an example to briefly describe the overall structure and working process of the technical solution provided by this utility model.

[0068] Please continue to refer to this. Figures 1-7 The robotic arm 1 is fixed to the mounting base plate 3 by the support column 8. The power supply 12, the suction head removal structure 4, the detection device 5, the suction head conveying device 6, the first circuit board 7, and necessary switches, filters, serial port / network port transmission structures are sequentially installed on the mounting base plate 3 to form the main body of the measuring device. The detection device 5 leads out a signal line and connects to the first circuit board 7. The signal line led out by the detection needle 10 in the robotic arm 1 is connected to the second circuit board 11. Then, the signal line from the second circuit board 11 is connected to the first circuit board 7. From the first circuit board 7, the signal line is connected to the serial port / network port transmission structure via a serial port / network cable. Finally, the signal line is connected to a PC computer via a serial port / network cable, and the corresponding measurement values ​​are displayed by software.

[0069] The drive pulley 610 is mounted on the drive motor 601 and then installed together on the motor mounting bracket 602. The linear bearing module 604 is inserted into the optical bar 605, and the optical bar mounting bracket 603 is mounted on the optical bar and then placed on the mounting base plate 3. The suction head placement tray 608 is placed on the linear bearing module 604, and the driven pulley 606 is placed on the mounting base plate 3 and connected to the drive pulley 610 via the drive belt 607 to form the suction head conveying device 6.

[0070] The insulating block 501, the conductive device 502, and the insulating pad 503 are sequentially installed on the mounting bracket 504 to form the detection device 5. The conductive device 502 leads out a signal line and connects to the first circuit board 7.

[0071] After placing the suction head 9 on the suction head holder 609, the entire assembly is placed on the suction head placement tray 608. The power is turned on and connected to the PC software. During operation, the suction head placement tray 608 automatically moves to the suction head retrieval position, which is on the same straight line as the suction head unloading structure 4 and the detection device 5. The robotic arm 1 automatically moves above the suction head placement tray 608 and retrieves the suction heads sequentially from the first position at the upper left corner of the suction head holder 609. The detection needle 10 on the robotic arm 1 is fitted onto the suction head 9 and moved above the detection device 5. Then, the detection needle 10 moves downward to the detection position and contacts the conductive device 502 to begin detection. At this time, the measured value is transmitted to the first circuit board 7 through the signal line connected to the conductive device 502 and the signal line on the detection needle 10. Then, the serial port / network cable on the first circuit board 7 is transmitted to the PC for display of the corresponding measured value through the serial port / network transmission structure.

[0072] After the measurement is completed, the detection needle 10 moves upward with the suction head 9 back to the vertical origin. Then, the robotic arm 1 moves to the first position above the suction head removal structure 4. The detection needle 10 descends to the bottom of the suction head removal structure 4, past the position where the suction head 9 is covered. Then, the robotic arm 1 moves to the second position of the suction head removal structure 4. Then, the detection needle 10 moves upward to remove the suction head. The suction head falls into the recycling box placed below the suction head removal structure 4. The robotic arm 1 moves to the suction head placement tray 608 and repeats the detection action until all suction heads on the suction head tray 609 have been detected.

[0073] The above specific embodiments further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above are only specific embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solution of this utility model should be included within the scope of protection of this utility model.

Claims

1. A device for measuring the conductivity parameters of a sampling pipette tip, characterized in that, include: Install base plate; A suction tip conveying device is mounted on the mounting base plate and carries a sampling suction tip to be tested. A detection device is mounted on the mounting base plate. The detection device includes a conductive device for contacting a sampling tip to measure conductivity parameters. A signal line from the detection device is connected to a first circuit board, which is connected to an external electronic device for communication via a signal transmission line. A robotic arm is mounted on a mounting base plate. The robotic arm includes a guide rail assembly and a detection pin mounted on the guide rail assembly. A signal line from the detection pin in the robotic arm is connected to a second circuit board, and the second circuit board is connected to a first circuit board via a signal line. The guide rail assembly includes a horizontal motor, a vertical motor, a horizontal guide rail, a horizontal slider, a vertical guide rail, and a vertical slider. The horizontal guide rail is mounted on the mounting base plate. The horizontal slider moves along the horizontal guide rail under the drive of the horizontal motor. The vertical guide rail is mounted on the horizontal slider. The vertical slider moves along the vertical guide rail under the drive of the vertical motor. The detection pin is mounted on the vertical slider. A suction head removal structure is disposed on the mounting base plate; The outer casing is mounted on the mounting base plate. The outer casing has a suction head unloading clearance hole, a detection clearance hole, and a suction head conveying clearance hole. The suction head unloading clearance hole corresponds to the location of the suction head structure, the detection clearance hole corresponds to the location of the detection device, and the suction head conveying clearance hole corresponds to the location of the suction head transmission device.

2. The measuring device for the conductivity parameters of the sampling tip according to claim 1, characterized in that, The suction head conveying device includes: Place the suction head on the tray; A suction tip holder is placed on a suction tip placement tray. The suction tip holder has multiple receiving holes, and the sampling suction tips are inserted into the receiving holes one by one. The drive mechanism is connected to the suction head placement tray and moves it to a preset suction head position under the action of the drive mechanism.

3. The measuring device for the conductivity parameters of the sampling tip according to claim 2, characterized in that, The drive mechanism includes: Drive motor; A drive pulley is mounted on the output shaft of the drive motor; The driven pulley is connected to the drive pulley via a drive belt; A linear bearing module, wherein the linear bearing module is mounted on the drive belt and moves with the drive belt; A linear bearing module is slidably mounted on the mounting base plate and extends horizontally and is perpendicular to the extension direction of the horizontal guide rail.

4. The measuring device for the conductivity parameters of the sampling tip according to claim 1, characterized in that, The detection device includes: The conductive element is mounted insulated from the mounting bracket by an insulating block and / or an insulating pad.

5. The measuring device for the conductivity parameters of the sampling tip according to claim 1, characterized in that, The unloading suction head structure includes: A portal frame, wherein the two side plates of the portal frame are mounted on the mounting base plate; A strip-shaped hole is formed on the horizontal plate of the gantry frame. The strip-shaped hole has a first hole section and a second hole section. The diameter of the first hole section is larger than the outer diameter of the sampling tip, and the diameter of the second hole section is smaller than the outer diameter of the sampling tip but larger than the outer diameter of the detection needle.

6. The measuring device for the conductivity parameters of the sampling tip according to claim 1, characterized in that, The robotic arm is fixed to the mounting base plate by a support column.

7. The measuring device for the conductivity parameters of the sampling tip according to claim 1, characterized in that, The measured value is transmitted to the main circuit board via the signal line connected to the conductive device and the signal line on the detection probe. The main circuit board is communicatively connected to an external electronic device to transmit the measured value to the display terminal of the electronic device.

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