Sample feeding positioning system and positioning method

Abstract

The invention discloses a sample feeding positioning system and a positioning method, and belongs to the technical field of material mechanics test equipment. The positioning system comprises an information acquisition unit, a sample positioning frame, a pressure sensor, a scanning assembly and a control unit, and the control unit receives initial information of a to-be-fed sample and generates a sample feeding number of the sample; receiving pressure data of the pressure sensor, comparing the pressure data with a gravity range of a sample specification corresponding to a preset sample loading position, and if the pressure data is greater than the gravity range, judging that the sample is placed wrongly and sending out a warning signal; the sample type identified by the scanning assembly is received, and if the sample type is inconsistent with the sample type corresponding to the sample loading position, a warning signal is sent out and the mechanical arm is locked; and if no sample is placed wrongly, the control unit sends a sample loading number and a grabbing instruction of the sample to be grabbed to the mechanical arm, and the mechanical arm grabs the corresponding sample. According to the sample positioning frame, multiple samples can be accurately positioned in the sample positioning frame, and the accuracy and the high efficiency of a mechanical test sample feeding link are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of material mechanics testing equipment, and particularly relates to a sample loading and positioning system and a positioning method. Background Art

[0002] Currently, most mechanical testing is done manually on a single testing machine, with samples manually distinguished. While some domestic institutions and manufacturers have implemented automated mechanical testing, these tests are only suitable for a single sample or a single model, and cannot accurately position and load multiple sample types, significantly reducing the accuracy of test data and experimental efficiency. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a sample loading and positioning system and positioning method to accurately load and position various types of samples, ensure the accuracy of test data, and improve the overall efficiency of mechanical testing.

[0004] The present invention provides the following technical solutions: In a first aspect, a sample loading and positioning system is provided, comprising: an information acquisition unit, configured to acquire initial information of a sample to be loaded, the initial information including sample type, sample specification, and initial number; The sample positioning rack is used to store samples. It includes several columns, each column corresponds to a sample type, and different rows in the same column correspond to different sample specifications. Each row includes several sample loading positions, and each sample loading position corresponds to a different number. A pressure sensor is provided at the bottom of each sample loading position of the sample positioning rack, and is used to detect pressure data of the sample loading position; A scanning component is located above each sample loading position and is used to collect image information of the sample and identify the sample type; A control unit is connected to the information acquisition unit, the pressure sensor, the scanning component and the robotic arm for grabbing samples; the control unit receives initial information of the sample to be loaded, determines the corresponding column and row of the sample to be loaded on the sample positioning rack according to the sample type and sample specification, and generates a loading number of the sample based on the initial number and the number of the loading position; the control unit receives pressure data from the pressure sensor, compares it with the gravity range of the sample specification corresponding to the preset loading position, and if the pressure data is greater than the gravity range, determines that the sample is placed incorrectly and issues a warning signal; the control unit receives the sample type identified by the scanning component, and if it is inconsistent with the sample type corresponding to the loading position, issues a warning signal and locks the robotic arm; if there is no sample placement error, the control unit sends the loading number and grabbing instruction of the sample to be grabbed to the robotic arm, and the robotic arm grabs the corresponding sample.

[0005] As an optional technical solution of the present invention, the sample types include thin plates, thick plates, bars and steel bars.

[0006] In a second aspect, a positioning method based on the sample loading and positioning system of the first aspect is provided, comprising: obtaining initial information of a sample to be loaded, the initial information including sample type, sample specifications, and initial number; Determining the corresponding column and row of the sample to be loaded on the sample positioning rack according to the sample type and sample specifications, and generating a loading number of the sample based on the initial number and the number of the loading position of the sample positioning rack; After placing the sample in the sample loading position of the sample positioning frame, obtaining pressure data of the sample loading position and comparing it with the preset gravity range of the sample specification corresponding to the sample loading position; if the pressure data is greater than the gravity range, it is determined that the sample is placed incorrectly and a warning signal is issued; If the pressure data is within the gravity range, the sample type is identified. If it is inconsistent with the sample type corresponding to the loading position, a warning signal is issued and the robotic arm is locked; If there is no sample placement error, the sample number and grabbing instruction of the sample to be grabbed are sent to the robotic arm, and the robotic arm grabs the corresponding sample.

[0007] As an optional technical solution of the present invention, if no sample is placed at the sample loading position, the sample loading position displays an empty state.

[0008] As an optional technical solution of the present invention, a sample is placed in the sample loading position, and the sample loading position displays the sample loading number.

[0009] As an optional technical solution of the present invention, the loading number of the sample is expressed as: initial number-loading position number.

[0010] As an optional technical solution of the present invention, after generating the sample loading number, the operator places the sample to be loaded at the corresponding loading position according to the sample loading number.

[0011] As an optional technical solution of the present invention, after the warning signal is issued, the operator will re-place the incorrectly placed samples until there are no more incorrectly placed samples.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The sample loading and positioning system provided by the present invention effectively avoids the problem of sample misplacement due to operator negligence through pressure sensors and scanning components, ensures that each sample can be accurately placed in the corresponding position, guarantees the accurate correspondence between test data and samples, and improves the authenticity and reliability of data; through the sample positioning rack, it realizes the orderly storage and precise loading and positioning of diversified samples, effectively avoids operator misplacement of samples, ensures the accuracy of test data, and improves the overall efficiency of mechanical testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 4 is a flow chart of the sample loading and positioning method in an embodiment of the present invention. DETAILED DESCRIPTION

[0014] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention. Example

[0015] This embodiment provides a sample loading and positioning system, comprising: The information acquisition unit is used to acquire the initial information of the sample to be loaded, wherein the initial information includes the sample type, sample specifications and initial number.

[0016] The sample positioning rack is used to store samples. It includes several columns, each column corresponds to a sample type, different rows in the same column correspond to different sample specifications, each row includes several sample loading positions, and each sample loading position corresponds to a different number.

[0017] The pressure sensor is arranged at the bottom of each sample loading position of the sample positioning rack and is used to detect the pressure data of the sample loading position.

[0018] The scanning component is located above each sample loading position and is used to collect image information of the sample and identify the type of sample.

[0019] A control unit is connected to the information acquisition unit, the pressure sensor, the scanning component and the robotic arm for grabbing samples; the control unit receives initial information of the sample to be loaded, determines the corresponding column and row of the sample to be loaded on the sample positioning rack according to the sample type and sample specification, and generates a loading number of the sample based on the initial number and the number of the loading position; the control unit receives pressure data from the pressure sensor, compares it with the gravity range of the sample specification corresponding to the preset loading position, and if the pressure data is greater than the gravity range, determines that the sample is placed incorrectly and issues a warning signal; the control unit receives the sample type identified by the scanning component, and if it is inconsistent with the sample type corresponding to the loading position, issues a warning signal and locks the robotic arm; if there is no sample placement error, the control unit sends the loading number and grabbing instruction of the sample to be grabbed to the robotic arm, and the robotic arm grabs the corresponding sample.

[0020] In this embodiment, the samples are mechanical test samples, and the sample types include thin plates, thick plates, bars and steel bars. Example

[0021] This embodiment provides a sample loading and positioning method based on embodiment 1, including: Step 1: Obtain the initial information of the sample to be loaded, which includes the sample type, sample specifications and initial number.

[0022] Each sample to be loaded has a unique initial number.

[0023] Step 2: Determine the corresponding column and row of the sample to be loaded in the sample positioning rack according to the sample type and sample specifications, and generate a loading number of the sample based on the initial number and the number of the loading position of the sample positioning rack.

[0024] After generating the sample loading number, the operator places the sample to be loaded in the corresponding loading position according to the loading number. If the loading position is not loaded with a sample, the loading position will display an empty status. If a sample is placed in the loading position, the loading position will display the sample loading number. The operator can see the numbering of all loading positions on the display device, forming a clear sample storage matrix, which facilitates quick sample search and location.

[0025] The sample loading number is represented by: initial number - loading position number. In this example, a bar sample with initial number WT00123 corresponds to loading position numbered 1 in the first column. Therefore, the loading number for this sample is WT00123-1. When this sample is transferred to the next stage, that position on the sample rack will be released and displayed as vacant.

[0026] Step 3: After placing the sample in the loading position of the sample positioning rack, obtain the pressure data of the loading position and compare it with the gravity range of the sample specification corresponding to the preset loading position. If the pressure data is greater than the gravity range, it is determined that the sample is placed incorrectly and a warning signal is issued.

[0027] Specifically, samples of different sizes have different gravities. When the operator places a sample, a pressure sensor collects real-time pressure data and compares it with the preset gravity range for the sample size at that location. If the pressure data exceeds the gravity range, the system determines that the sample has been placed incorrectly and immediately issues a warning signal, prompting the operator to reposition it.

[0028] Step 4: If the pressure data is within the gravity range, obtain the identified sample type. If it is inconsistent with the sample type corresponding to the loading position, issue a warning signal and lock the robotic arm.

[0029] In this embodiment, to address the problem of mixing rods and plates, a specialized scanner is installed above each sample loading station. Using image recognition and shape analysis technology, the scanner can quickly identify whether the sample being loaded is a rod or a plate. If a sample type mismatches the preset sample type for that location, such as a rod being placed in the plate area, an alarm is immediately triggered and the robotic arm is locked, preventing it from performing the grabbing action until the operator corrects the sample placement error.

[0030] After the warning signal is issued, the operator will re-place the incorrectly placed samples until there is no incorrect placement of the samples.

[0031] Step 5: If there is no sample placement error, send the sample number and grabbing instruction of the sample to be grabbed to the robotic arm, and the robotic arm grabs the corresponding sample.

[0032] Specifically, once the sample is correctly positioned, the robotic arm is unlocked and a grab command is sent to it. The robotic arm then precisely locates the sample, grabs it, and accurately transports it to the mechanical testing machine for testing.

[0033] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Furthermore, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0034] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0035] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0036] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A sample loading and positioning system, characterized in that: include: An information acquisition unit, configured to acquire initial information of a sample to be loaded, the initial information including sample type, sample specification, and initial number; The sample positioning rack is used to store samples. It includes several columns, each column corresponds to a sample type, and different rows in the same column correspond to different sample specifications. Each row includes several sample loading positions, and each sample loading position corresponds to a different number. A pressure sensor is provided at the bottom of each sample loading position of the sample positioning rack, and is used to detect pressure data of the sample loading position; A scanning component is located above each sample loading position and is used to collect image information of the sample and identify the sample type; A control unit is connected to the information acquisition unit, the pressure sensor, the scanning component and the robotic arm for grabbing samples; the control unit receives initial information of the sample to be loaded, determines the corresponding column and row of the sample to be loaded on the sample positioning rack according to the sample type and sample specification, and generates a loading number of the sample based on the initial number and the number of the loading position; the control unit receives pressure data from the pressure sensor, compares it with the gravity range of the sample specification corresponding to the preset loading position, and if the pressure data is greater than the gravity range, determines that the sample is placed incorrectly and issues a warning signal; the control unit receives the sample type identified by the scanning component, and if it is inconsistent with the sample type corresponding to the loading position, issues a warning signal and locks the robotic arm; if there is no sample placement error, the control unit sends the loading number and grabbing instruction of the sample to be grabbed to the robotic arm, and the robotic arm grabs the corresponding sample.

2. The sample loading and positioning system according to claim 1, characterized in that: The sample types include thin plates, thick plates, bars and rebars.

3. A positioning method based on the sample loading and positioning system according to any one of claims 1-2, characterized in that: include: Obtaining initial information of the sample to be loaded, the initial information including sample type, sample specifications and initial number; Determining the corresponding column and row of the sample to be loaded on the sample positioning rack according to the sample type and sample specifications, and generating a loading number of the sample based on the initial number and the number of the loading position of the sample positioning rack; After placing the sample in the sample loading position of the sample positioning frame, obtaining pressure data of the sample loading position and comparing it with the preset gravity range of the sample specification corresponding to the sample loading position; if the pressure data is greater than the gravity range, it is determined that the sample is placed incorrectly and a warning signal is issued; If the pressure data is within the gravity range, the sample type is identified. If it is inconsistent with the sample type corresponding to the loading position, a warning signal is issued and the robotic arm is locked; If there is no sample placement error, the sample number and grabbing instruction of the sample to be grabbed are sent to the robotic arm, and the robotic arm grabs the corresponding sample.

4. The sample loading and positioning method according to claim 3, characterized in that: If no sample is placed at the sample loading position, the sample loading position will display an empty state.

5. The sample loading and positioning method according to claim 3, characterized in that: Place the sample in the sample loading position, and the sample loading position will display the sample loading number.

6. The sample loading and positioning method according to claim 3, characterized in that: The loading number of the sample is expressed as: initial number-loading position number.

7. The sample loading and positioning method according to claim 3, characterized in that: After generating the sample loading number, the operator places the sample to be loaded at the corresponding loading position according to the sample loading number.

8. The sample loading and positioning method according to claim 3, characterized in that: After the warning signal is issued, the operator will re-place the incorrectly placed samples until there is no incorrect placement of the samples.

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