CN115951077A - A fully automatic detection system and method for alloy composition - Google Patents

Abstract

The invention discloses a full-automatic detection system for alloy components, which relates to the field of alloy component detection and comprises an automatic sample weighing system, a heating and stirring system, a titration system, a cleaning system, a robot system and a control system, wherein the robot system is used for completing the transfer of metal samples in the automatic sample weighing system, the heating and stirring system, the titration system and the cleaning system, and the control system is used for completing the communication and instruction control of the automatic sample weighing system, the heating and stirring system, the titration system, the cleaning system and the robot system so as to complete the determination of the component content of the metal samples. The invention also discloses a method for automatically detecting the components by using the alloy component full-automatic detection system. The invention has the characteristics of high efficiency, labor cost saving, high accuracy and reliability, low equipment maintenance and wide applicability, and can avoid the harm of human health.

Description

A fully automatic detection system and method for alloy composition

technical field

The invention relates to the field of alloy composition detection, in particular to an alloy composition automatic detection system and method.

Background technique

The traditional detection method of alloy composition is mainly carried out manually. The test steps include the weighing of the sample, sample pretreatment (rinsing of the sample beaker, adding dissolved sample acid, passing protective gas (nitrogen), exhausting air), heating and cooling of the sample, and then to the titration process (weighing of the solution , preparation, mixing, titration, observation), analysis, recording, and finally discharge of waste liquid, cleaning of sample cup, cleaning of titration device, etc. This series of complicated work is all done by manual operation. Even for a small number of sample experiments, such a workload will take up a lot of time and energy of a skilled chemical experimenter. Moreover, since it relies entirely on manual operation, human factors are very large, and the degree of chemical reaction, solution preparation, and observation and analysis of titration results are all judged by personal experience, so human errors are extremely prone to occur. If there is a turnover of personnel, the judgment results may vary greatly.

For large iron and steel enterprises, the workload of this kind of chemical analysis will be huge every day. Manual testing not only consumes a lot of manpower and time, reduces work efficiency, but more importantly, lacks the accuracy and reliability of data collection and analysis. A large amount of chemical analysis, once human error occurs, will have a direct impact on the subsequent manufacturing analysis and raw material selection. In addition, when the sample reacts with the acid reagent, it will have a certain impact on the human body and endanger human health.

Therefore, the technical problem to be solved by the present invention is the low efficiency, poor accuracy and health damage to practitioners of traditional manual component detection methods.

In view of this series of shortcomings, those skilled in the art are committed to developing a fully automatic detection system and method for alloy composition, which can replace the traditional manual detection and analysis method with an intelligent automatic chemical test system, and double the sample processing and test results. The efficiency of the analysis minimizes the occurrence of human errors, greatly improving the completeness of chemical reactions and the accuracy and reliability of data collection and analysis. At the same time, the damage to human health is also reduced.

Contents of the invention

In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is the problems of low efficiency, high labor cost, poor accuracy and reliability, and harm to human health caused by traditional manual component detection methods.

In order to achieve the above object, the present invention provides a fully automatic detection system for alloy components, including an automatic weighing system, a heating and stirring system, a titration system, a cleaning system, a robot system and a control system, wherein the function of the automatic weighing system is Yes: Weigh and add a metal powder sample with a specified weight, output the weighing information and the weighed sample; the function of the heating and stirring system is: install the lifting cover, ventilate, add acid, heat, ventilate and cool, and make the metal The powder sample is fully chemically reacted under specified conditions to obtain the sample solution to be tested; the function of the titration system is to determine the content of a certain metal component in the sample solution to be tested after passing through the heating and stirring system by potentiometric titration; The function of the cleaning system is to realize waste liquid treatment and automatic cleaning and drying of the sample cup after titration; the robot system completes the metal sample in the automatic weighing system, heating and stirring system, titration system and cleaning system. Transfer, the control system completes the communication and command control of the automatic weighing system, heating and stirring system, titration system, cleaning system and robot system, and completes the determination of the component content of the metal sample.

Further, the automatic weighing system includes a sampling head, a sampling head bracket, a sample cup, a sampling weighing instrument, and a sample table; manually add the metal powder sample into the sampling head, and paste a barcode, After scanning the barcode to obtain the information and storing it in the host computer, place the metal powder sample in the sampling area; manually trigger the automatic work start mode, and the robot system takes the sampling head and places it in the sampling weighing instrument At the sampling place, the automatic weighing system locks the sampling head, and at the same time, the sampling weighing instrument reads the information of the sampling head, compares it with the scanned barcode information, and stores it in the Host computer; after receiving the correct signal from the PLC, the robot system takes the sample cup and puts it on the workbench; after receiving the in-position signal of the photoelectric switch, the sample adding weighing instrument controls the work of the sample adding head, A set weight of sample is added to the sample cup.

Further, the adding and weighing instrument is provided with an automatic switch hatch, before the robot system takes the sample adding head, the adding and weighing instrument automatically opens the door, and the sample adding and weighing instrument adds a sample Automatically open the door when finished.

Further, the heating and stirring system includes a heating stirrer, a lifting and grabbing cylinder, an automatic liquid addition system, an automatic ventilation system and a pneumatic system; the robot system sends the sample cup containing the metal powder sample into the heating and stirring system , and specifically placed on the heating stirrer; the lifting cover cylinder fixes the lifting cover on the sample cup, after the lifting cover is pressed, the automatic ventilating system first feeds nitrogen to discharge the air, The automatic liquid addition system turns on the peristaltic pump to add water and acid solution of a specified volume, then turns on the heating function of the heating agitator, stops heating after heating for a specified time, until evaporated; and is ventilated by the automatic ventilation system Nitrogen gas is added to speed up the cooling of the solution in the sample cup, and the acid mist in the sample cup is discharged, and then the lifting cover cylinder releases the lifting cover to obtain the sample solution to be tested.

Further, the heating and stirring system also includes a solenoid valve, which is used to control the feeding and stopping of nitrogen gas, and adjust the pressure; the hydrochloric acid storage tank in the automatic liquid addition system contains a capacitive liquid level switch to report liquid level information , reminding to add liquid in time.

Further, the titration system includes a titrator, a magnetic stirrer, and a titration lifting cylinder; after the robot system moves the sample cup containing the sample solution to be tested from the heating and stirring system to the designated position of the titration system, the robot The finger is released, and the titration lifting cylinder clamps and installs the titration lifting cover; the titrator adds quantitative mixed acid solution to the sample solution to be tested; after the mixed acid solution is added, automatic titration starts; , output the volume of standard solution used to the upper computer, and the titration lifting cylinder clamps and removes the titration lifting cover; the robot system sends the sample cup and waste liquid to the designated position; the titrator can realize automatic Titration, automatic cleaning of electrodes and the ability to output the volume of the standard solution used in titration; the titration system includes a mixed acid container with a liquid level sensor, which can output the volume of the mixed acid solution to the host computer And the liquid level information in the mixed acid container; the titration system also includes a water adding channel to realize the dilution of the sample solution.

Further, the cleaning system includes: a washing and drying machine, a waste liquid barrel, a clean bottle rack, and a dirty bottle rack; the robot system takes out the sample cup containing the waste liquid from the titration system and sends it into the Dirty bottle rack, then collect 8 sample cups to trigger the photoelectric switch, the cleaning and drying machine is turned on, the robot system receives the instruction to send the sample cups into the cleaning and drying machine for cleaning and drying, the robot system The cleaned sample cups are sent to the clean bottle rack for use in the next detection.

Further, the robot system includes a robot arm, a robot bracket, a robot guide rail, and a robot finger; wherein, the robot bracket is fixed on the ground, and the robot guide rail is installed on the robot bracket, so that the robot arm can The robot moves horizontally in the direction of the guide rail; the robot finger is installed at the end of the robot arm, and cooperates with the robot arm to complete the clamping of the sample cup and the sample cup in the automatic weighing system, heating Stirring system, titration system, transfer in cleaning system.

Further, the control system includes control system hardware, control system software, and a communication system; the control system hardware includes a PLC and a host computer, and the PLC realizes the logic control of the control system, and controls the robot system according to the operation flow Sequentially grasp and place the sampling heads and sample cups, and send relevant operation control instructions to the automatic weighing system, heating and stirring system, titration system and cleaning system to complete the entire detection; The human-computer interaction function of the automatic detection system includes manual setting of process parameters, data collection and storage, and calculation output; at the same time, the host computer is responsible for the titration system command call and data calculation, and performs human-computer interaction through the touch screen. Visually present the results.

The present invention also provides a method for fully automatic detection of alloy components, using the fully automatic detection system for alloy components described in any one of claims 1 to 9, said method comprising the following steps:

Step 1. The operator places the metal powder sample and pastes the barcode, and starts the automatic detection system;

Step 2, the robot system cooperates with the weighing system to weigh a set number of metal powder samples into the sample cup;

Step 3, the robot system transfers the weighed metal powder sample to the heating and stirring system;

Step 4: After adding water and acid solution, heat and stir to obtain the sample solution to be tested, the robot system transfers the sample solution to be tested to the titration system, and automatically titrates the composition of the certain metal powder sample content;

Step 5, the robot system takes out the sample cup containing the waste liquid from the titration system, transfers it to the cleaning system, and completes the cleaning;

Step 6: The system returns to the initial state and waits for the next batch of measurements.

In a preferred embodiment of the present invention, the heating and stirring system can be carried out in groups, and 8 samples can be heated and stirred at the same time and filled with gas and liquid, and the number of samples to be tested can also be controlled according to needs. The start and stop of heating are both Automatic control, no need to open and close all solenoid valves, during the first batch of heating, the second batch can carry out operations such as weighing samples, inflating, and adding liquids.

Compared with the prior art, the present invention has the following beneficial technical effects:

1. The present invention uses an intelligent automatic chemical test system to replace the traditional manual detection test analysis method, which can double the work efficiency of sample processing and test analysis. The high-precision digital equipment itself has high precision, and the fully automated process avoids errors caused by manual measurement, greatly improving the completeness of chemical reactions and the accuracy and reliability of data collection and analysis.

2. Since direct contact with humans is avoided during the entire chemical reaction process, the health and safety of personnel is also guaranteed, realizing the replacement of humans by machines and providing solutions for intelligent chemical factories. Special pipelines are designed for acid liquid and gas, which effectively avoids the leakage of toxic substances, avoids the occurrence of safety accidents, and makes the environment cleaner and safer.

3. From the perspective of cost, this scheme combines mature manufacturing experience at home and abroad, and the reliability and stability of the developed instrument can be more than ten years under normal use and regular maintenance. Moreover, the operation is simple, the training is easy, and the requirements for personnel experience are relatively low. Compared with traditional detection methods, a set of equipment can complete the workload of 3 to 4 people, so as to achieve the purpose of improving work efficiency and saving labor costs.

4. This set of instruments is not only suitable for analyzing alloy composition, but also other chemical composition analysis, only need to replace the control software and database, so it has very wide applicability.

Therefore, no matter from the reliability of the analysis quality or the cost of use, this solution is undoubtedly superior to the traditional detection method.

The idea, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of the present invention.

Description of drawings

Fig. 1 is the schematic diagram of the alloy composition automatic detection system of a preferred embodiment of the present invention;

Fig. 2 is a communication control network architecture diagram of an alloy composition automatic detection system of a preferred embodiment of the present invention;

Fig. 3 is the flow chart that the alloy composition automatic detection system and method of a preferred embodiment of the present invention measure;

Among them: 1-host computer; 2-robot system; 3-clean bottle rack; 4-cleaning and drying machine; 5-dirty bottle rack; 6-waste liquid bucket; 7-titration system; 8-heating and stirring system; Automatic weighing system.

Detailed ways

The following describes several preferred embodiments of the present invention with reference to the accompanying drawings, so as to make the technical content clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned herein.

In the drawings, components with the same structure are denoted by the same numerals, and components with similar structures or functions are denoted by similar numerals. The size and thickness of each component shown in the drawings are shown arbitrarily, and the present invention does not limit the size and thickness of each component. In order to make the illustration clearer, the thickness of parts is appropriately exaggerated in some places in the drawings.

As shown in Figure 1, it is a schematic diagram of the three-dimensional structure of the automatic detection system for alloy composition. The alloy composition automatic detection system includes host computer 1, robot system 2, clean bottle rack 3, washing and drying machine 4, dirty bottle rack 5, waste liquid bucket 6, titration system 7, heating and stirring system 8 and automatic sample weighing system 9.

Figure 2 is a diagram of the communication control network architecture of the alloy composition automatic detection system. The communication control network completes the information exchange between each system; specifically, the scanner is directly connected to the host computer through a USB cable to realize the code scanning function; the titrator, heating stirrer , The peristaltic pump is connected to the RS232 to Ethernet port through RS232, and then connected to the Ethernet switch through the network cable; the Ethernet switch is directly connected to the balance, robot, upper computer, and PLC, and the PLC is directly connected to each sensor to obtain the data of each sensor. State information, so as to realize the communication function of the whole system.

As shown in FIG. 3 , it is a flow chart of the alloy composition automatic detection system and method of the embodiment of the present invention. The specific implementation steps of the automatic detection method for alloy composition are as follows:

Step 1. The operator prints the barcode of the sample type, pastes it on the small brown bottle, takes the metal powder and puts it into the small brown bottle, scans the barcode on the bottle with a scanner, enters the sample number and installs the small brown bottle on the sampling head Put them on the sampling head placement area in order, and repeat until 8 sampling heads are placed. Add a stirring bar to each sample cup, check the above steps, and press the ready button on the industrial computer after confirming that it is correct.

Step 2. The robot system takes the sampling head containing the sample and installs it on the sampling device of the scale, then takes the empty bottle and places it on the scale, and the scale adds the sample according to the set value.

Step 3. The robot system takes the weighed sample cup and places it on the magnetic stirrer, and clamps the bottle by clamping the cylinder. The peristaltic pump adds water, the magnetic stirrer starts to stir, and the lift and catch cylinder moves to close the lift cover, fill with nitrogen, and discharge the air.

Step 4, the hydrochloric acid valve is opened, the peristaltic pump works, hydrochloric acid is added, the hydrochloric acid valve is closed, and the magnetic stirrer starts heating and stirring. The heating temperature was changed until evaporation to dryness, heating and stirring were stopped. Lifting and grabbing the lid cylinder moves to move the sample cup up and away from the heating plate for cooling. Lifting and grabbing cylinder moves, the sample cup is moved down, the water valve is opened, and the water pump adds water. The water valve is closed and the agitation is turned on. The mixed acid valve is opened, the peristaltic pump adds an appropriate amount of mixed acid solution, the nitrogen valve is closed, and the stirring is closed.

Step 5. The robot arm moves the cup to the magnetic stirrer of the titrator, and the titration lifting cylinder moves to clamp the bottle. The titration lifting cylinder descends, and the electrode and burette of the titrator are extended into the cup. The magnetic stirrer starts to stir and the titrator starts to titrate. After the titration is completed, the magnetic stirrer is turned off, and the data is transmitted to the host computer. The water valve is opened, the peristaltic pump works, and the burette is cleaned.

Step 6. The robot arm grabs the sample cup containing the waste liquid from the titration system. The robot arm pours the waste liquid into the waste liquid bucket. sample cup. The door of the washing machine is opened, and the robot puts 8 sample cups into the washing machine one by one for cleaning. After the cleaning is completed, the door of the washing machine is opened, and the robot takes the sample cup from the washing machine and puts it into the clean bottle rack.

Step 7, the system returns to the initial state, and waits for the determination of the next batch of samples.

The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make many modifications and changes according to the concept of the present invention without creative efforts. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art shall be within the scope of protection defined by the claims.

Claims (10)

1. The full-automatic alloy component detection system is characterized by comprising an automatic sample weighing system, a heating and stirring system, a titration system, a cleaning system, a robot system and a control system, wherein the automatic sample weighing system is used for: weighing and adding a metal powder sample with specified weight, and outputting weighing weight information and the weighed sample; the heating and stirring system has the functions of: installing a lifting cover, ventilating, adding acid liquor, heating, ventilating and cooling to ensure that the metal powder sample is subjected to full chemical reaction under the specified condition to obtain a sample solution to be detected; the titration system functions as: determining the content of a certain metal component in the sample solution to be detected after passing through the heating and stirring system by a potentiometric titration method; the cleaning system has the following functions: the automatic cleaning and drying of the sample cup after waste liquid treatment and titration are realized; the robot system is used for transferring the metal sample in the automatic sample weighing system, the heating and stirring system, the titration system and the cleaning system, and the control system is used for controlling the communication and the instruction of the automatic sample weighing system, the heating and stirring system, the titration system, the cleaning system and the robot system so as to measure the component content of the metal sample.

2. The system of claim 1, wherein the automated sample weighing system comprises a sample loading head, a sample loading head holder, a sample cup, a sample loading weighing instrument; manually adding the metal powder sample into a sample adding head, attaching a bar code, scanning the bar code to obtain information, storing the information into an upper computer, and placing the metal powder sample in a sampling area; manually triggering an automatic working starting mode, taking the sampling head by the robot system and placing the sampling head at a sampling position of the sampling weighing instrument, locking the sampling head by the automatic sampling weighing system, reading the information of the sampling head by the sampling weighing instrument, comparing the information with the scanned bar code information, and storing the information into the upper computer after the information is accurate; when a correct signal of the PLC is received, the robot system samples a sample cup and puts the sample cup on a workbench; and after receiving the in-place signal of the photoelectric switch, the sample adding weighing instrument controls the sample adding head to work, and a sample with set weight is added into the sample cup.

3. The system for fully automatically detecting the alloy components according to claim 1, wherein the heating and stirring system comprises a heating stirrer, a lifting cover-grabbing cylinder, an automatic liquid adding system, an automatic ventilating system and a pneumatic system; the robot system sends a sample cup containing a metal powder sample into the heating and stirring system, and is specifically placed on the heating stirrer; the lifting cover is fixed on the sample cup through the lifting cover grabbing cylinder, after the lifting cover is tightly pressed, nitrogen is firstly introduced into the automatic ventilation system to exhaust air, the automatic liquid adding system is started up to add water and acid liquor with specified volumes through a peristaltic pump, then the heating function of the heating stirrer is started, and heating is stopped until the heating is finished after the heating is carried out for specified time; and introducing nitrogen gas through the automatic ventilation system to accelerate the cooling of the solution in the sample cup, discharging acid mist in the sample cup, and then loosening the lifting cover by the lifting cover-grabbing cylinder to obtain the sample solution to be detected.

4. The system for fully automatically detecting the alloy components according to claim 1, wherein the titration system comprises a titrator, a magnetic stirrer, a titration lifting cylinder; after the robot system moves a sample cup containing a sample solution to be detected from the heating and stirring system to a designated position of the titration system, the fingers of the robot are loosened, and the titration lifting cylinder clamps and installs the titration lifting cover; adding a quantitative mixed acid solution into the sample solution to be detected by the titrator; after the mixed acid solution is added, starting automatic titration; after titration is finished, outputting the used standard liquid volume to an upper computer, and clamping and taking down the titration lifting cover by the titration lifting cylinder; the robot system sends the sample cup and waste liquid to a designated position; the titrator can realize automatic titration and automatic cleaning of the electrode and can output the volume of standard liquid used for titration; the titration system comprises a mixed acid container, a liquid level sensor is arranged in the mixed acid container, and the volume of the added mixed acid solution and the liquid level information in the mixed acid container can be output to an upper computer; the titration system further comprises a water adding channel for realizing the dilution of the sample solution.

5. The system of claim 1, wherein the cleaning system comprises: cleaning a dryer, a waste liquid barrel, a clean bottle rack and a dirty bottle rack; the robot system takes out the sample cups containing waste liquid from the titration system, sends the sample cups into the dirty bottle rack, then collects 8 sample cups to trigger the photoelectric switches, the cleaning and drying machine is turned on, the robot system receives an instruction to send the sample cups into the cleaning and drying machine for cleaning and drying, and the robot system sends the cleaned sample cups to the clean bottle rack for use when waiting for next detection.

6. The system for fully automatically detecting alloy composition according to claim 1, wherein the robot system comprises a robot arm, a robot support, a robot guide rail, a robot finger; the robot support is fixed on the ground, and the robot guide rail is mounted on the robot support, so that the robot arm can horizontally move in the direction of the robot guide rail; the robot fingers are arranged at the tail ends of the robot arms and matched with the robot arms to clamp the sample cups and transfer the sample cups in the automatic sample weighing system, the heating and stirring system, the titration system and the cleaning system.

7. The system of claim 1, wherein the control system comprises control system hardware, control system software, and a communication system; the control system hardware comprises a PLC and an upper computer, the PLC realizes the logic control of the control system, controls the robot system to grab and place the sample adding head and the sample cup according to the operation flow sequence, and sends related operation control instructions to the automatic sample weighing system, the heating and stirring system, the titration system and the cleaning system to complete the whole detection; the upper computer realizes the man-machine interaction function of the alloy composition full-automatic detection system, and comprises manual setting of technological process parameters, data acquisition and storage, and calculation and output; meanwhile, the upper computer is responsible for instruction calling and data calculation of the titration system, man-machine interaction is carried out through the touch screen, and results are visually presented.

8. The system according to claim 2, wherein the sample-adding weighing device has a door capable of being opened and closed automatically, and the door is opened automatically before the robotic system extracts the sample-adding head and opened automatically after the sample-adding weighing device finishes adding the sample.

9. The system for automatically detecting alloy components according to claim 3, wherein the heating and stirring system further comprises an electromagnetic valve for controlling the introduction and stop of nitrogen gas and adjusting the pressure; a hydrochloric acid storage tank in the automatic liquid adding system is provided with a capacitance type liquid level switch to report liquid level information and remind users of adding liquid in time.

10. A method for fully automatically detecting alloy components, which is characterized by using the system for fully automatically detecting alloy components as claimed in any one of claims 1 to 9, and comprises the following steps:

firstly, placing a metal powder sample and sticking a bar code by an operator, and starting an automatic detection system;

secondly, the robot system is matched with the sample weighing system to weigh a set number of metal powder samples into a sample cup;

thirdly, transferring the weighed metal powder sample to the heating and stirring system by the robot system;

step four, after water and acid liquor are added, heating and stirring are carried out, so as to obtain a sample solution to be tested, the robot system transfers the sample solution to be tested into the titration system, and the component content of a certain metal powder sample is automatically titrated and tested;

taking the sample cup filled with the waste liquid out of the titration system by the robot system, transferring the sample cup to the cleaning system, and finishing cleaning;

and step six, the system restores the initial state and waits for the next batch of measurement.

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