Mobile intelligent steel bar comprehensive performance detection system

Abstract

The utility model discloses a mobile intelligent steel bar comprehensive performance detection system. The detection system comprises a steel bar storage and return frame for placing a steel bar test piece, a weight deviation instrument, a steel bar temporary storage frame, a stretching device and a robot, the robot comprises a mechanical arm and a clamping jaw extending out of the tail end of the mechanical arm. The steel bar storage and return frame, the weight deviation instrument, the steel bar temporary storage frame and the stretching device are sequentially arranged in the range where the tail end of the mechanical arm moves in the upstream and downstream relation. The tensile device is used for measuring the tensile property of the steel bar test piece; the weight deviation instrument is used for measuring the weight and length data of the steel bar test piece; the steel bar temporary storage frame is located between the weight deviation instrument and the stretching device and used for placing a steel bar test piece measured by the weight deviation instrument. The device has the characteristics of high automation degree, high detection accuracy and flexibility in use.

Description

Technical Field

[0001] The utility model relates to the technical field of reinforced concrete detection, and particularly relates to a mobile intelligent comprehensive performance detection system for steel bars. Background Art

[0002] In a reinforced concrete structure, concrete mainly plays a role in compression resistance, while steel bars mainly play a role in tensile resistance. The mechanical response of a reinforced concrete structure depends to a large extent on the material properties of itself. The determination of steel bars mainly includes tensile tests, bending tests, etc. Among them, the test for determining a series of characteristics of a material under a tensile load is also called a tensile test. It is one of the basic methods for material mechanical property tests, mainly used to test whether the material meets the specified standards and study the properties of the material. The tensile test can determine a series of strength indexes and plastic indexes of the material, such as the conditional yield limit, the strength limit, the elongation rate, the reduction of area, as well as the elastic modulus E and the lower yield strength of the material.

[0003] At present, the vast majority of quality inspection institutions still use manual loading and unloading of steel bar specimens during the determination of steel bar tensile tests. The staff takes a steel bar specimen to be tested from a material turnover trolley, places it at the center position of the jaw fixture of a universal testing machine, presses the chuck start button, the chuck acts and clamps the steel bar specimen to be tested, and then presses the test start button, and the universal testing machine conducts a tensile strength test determination. After the test is completed, the test specimen is taken out manually, and then the next steel bar specimen is taken from the material turnover trolley to repeat the above operation. However, on the one hand, when the jaw fixture of the universal testing machine clamps the steel bar specimen, if it fails to grasp firmly or the position is inaccurate, it may cause harm to the operator and there are potential safety hazards. On the other hand, the steel bar specimens are not screened. If unqualified steel bar specimens are used for tensile tests, it will also affect the test results. At the same time, there are also the following problems: most of the current equipment relies on manual labor, with high labor intensity, low efficiency, and high cost; the equipment is fixed in position, and the site is restricted, and it cannot be moved flexibly. Content of the Utility Model

[0004] Purpose of the utility model: The purpose of the utility model is to provide a mobile intelligent comprehensive performance detection system for steel bars with high automation, high detection accuracy, and flexible use.

[0005] Technical solution: The mobile intelligent comprehensive performance detection system of the utility model includes a steel bar storage and return rack for placing steel bar specimens, a weight deviation meter, a steel bar buffer rack, a tensile device, and a robot; the robot includes a robotic arm and a gripper extending from the end of the robotic arm; the steel bar storage and return rack, the weight deviation meter, the steel bar buffer rack, and the tensile device are arranged in sequence in the upstream-downstream relationship within the range reached by the movement of the end of the robotic arm; the tensile device is used to measure the tensile performance of the steel bar specimens, and the weight deviation meter is used to measure the weight and length data of the steel bar specimens; the steel bar buffer rack is located between the weight deviation meter and the tensile device and is used to place the steel bar specimens after being measured by the weight deviation meter.

[0006] Further, the tensile device includes a tensile testing machine and an extensometer. The tensile testing machine conducts a tensile test on the steel bar specimens, and the extensometer obtains the tensile performance.

[0007] Further, a corresponding bar code is provided on each steel bar specimen. The detection results and numbers corresponding to the steel bar specimens are stored in the bar code. The detection results include tensile performance, weight, and length data.

[0008] Further, the weight deviation meter includes a measurement component and a code scanning device. The measurement component detects the weight and length data. The code scanning device includes a code reader that identifies the bar code and is used to obtain the detection results and numbers corresponding to the steel bar specimens in real time.

[0009] Further, the steel bar buffer rack includes a square bracket and several groups of trays. Each group of trays is provided with two brackets symmetrically arranged along the height extension direction of the square bracket. The brackets extend horizontally inward from the square bracket, and each bracket is recessed downward to form a groove.

[0010] Further, the trays include a qualified specimen tray and an unqualified specimen tray. The qualified specimen tray is used to place the steel bar specimens when the weight and length data are qualified, and the unqualified specimen tray is used to place the steel bar specimens when the weight and length data are unqualified; the tensile device is used to detect the steel bar specimens in the qualified specimen tray.

[0011] Further, the comprehensive performance detection system further includes a mobile material frame. The mobile material frame is close to the tensile device and is used to place the steel bar specimens after being detected by the tensile device. The mobile material frame includes a frame body and rollers, and the rollers are fixedly installed at the bottom of the frame body.

[0012] Further, the robot further includes a connection component, a power device, and a fixture adapter plate. The connection component connects the robotic arm and the power device. The power device is connected to the gripper through the fixture adapter plate, and the power device drives the gripper to rotate.

[0013] Furthermore, the comprehensive performance detection system is arranged on a platform with a certain height.

[0014] Furthermore, the platform adopts a standard container.

[0015] Beneficial effects: The utility model has the following remarkable effects: 1. The utility model has a high degree of automation: The device proposed by the utility model includes a steel bar storage and return rack for placing steel bar specimens, a weight deviation meter, a steel bar buffer rack, a stretching device, and a robot, and the steel bar storage and return rack, the weight deviation meter, the steel bar buffer rack, and the stretching device are arranged in sequence in the range reached by the end of the robotic arm in an upstream-downstream relationship; The robot is used to replace manual labor to load and unload steel bar specimens and perform performance tests in sequence, enabling the robot to quickly and accurately pick and place materials at an appropriate distance, reducing labor intensity, potential safety hazards for staff, and test costs, and improving the efficiency of performance detection; At the same time, the utility model provides a scanning device, and uses barcodes to update and store the test results of steel bar specimens in real time. Only by scanning the barcode can the test results of the corresponding steel bar specimens be identified and updated, enhancing the effect and practicability of detection and update; 2. The utility model has high detection accuracy: The weight deviation meter is used to weigh and measure the length of steel bar specimens, eliminate unqualified specimens, and qualified specimen trays and unqualified specimen trays are arranged on the steel bar buffer rack, facilitating the robot to accurately grasp qualified specimens for subsequent tensile property tests, avoiding the influence of all steel bar specimens undergoing tensile property tests on the accuracy of tensile properties, and improving the accuracy of test results; 3. Flexible use: On the one hand, the utility model integrates the equipment used in the detection process of reinforced concrete, and on this basis, emphasizes the mobility of the equipment, and sets up equipment conducive to mobility such as a mobile material frame and a robot; On the other hand, since all the equipment of the utility model is concentrated on a platform with a certain height, when the mobile platform moves, all the detection equipment moves simultaneously. Therefore, the working site is flexible, the movement and turnover are convenient, and tests can be carried out in a designated area according to customer needs; At the same time, for different detection items, it can also be modularly combined with other mobile detection systems for flexible use. Description of the Drawings

[0016] Figure 1 It is a top view of the structure of a mobile intelligent comprehensive performance detection system for steel bars;

[0017] Figure 2 It is a schematic diagram of the structure of a weight deviation meter;

[0018] Figure 3 It is a schematic diagram of the structure of a steel bar buffer rack;

[0019] Figure 4 It is a schematic diagram of the structure of a robot fixture. Detailed Embodiments

[0020] The present utility model will be further illustrated below in conjunction with the accompanying drawings and specific embodiments.

[0021] In the figure, 1 is a standard container, 2 is an oil source cabinet, 3 is a robot control cabinet, 4 is a steel bar buffer rack, 5 is a weight deviation meter, 6 is an electric control cabinet, 7 is a steel bar storage and return rack, 8 is a robot, 9 is a mobile material box, 10 is a tensile testing machine, 11 is an extensometer, 12 is a steel bar test piece, 13 is a measurement component, 14 is a code reader, 15 is a qualified test piece tray, 16 is an unqualified test piece tray, 17 is a connection component, 18 is a power device, 19 is a fixture adapter plate, 20 is a jaw, 21 is a bracket, and 22 is a square bracket.

[0022] Please refer to Figure 1 As shown, the present utility model discloses a mobile intelligent comprehensive performance detection system for steel bars, including a steel bar storage and return rack 7 for placing the steel bar test piece 12, a weight deviation meter 5, a steel bar buffer rack 4, a stretching device, and a robot 8; the robot 8 includes a robotic arm and jaws extending from the end of the robotic arm; the steel bar storage and return rack 7, the weight deviation meter 5, the steel bar buffer rack 4, and the stretching device are arranged in sequence in an upstream and downstream relationship within the range reached by the movement of the end of the robotic arm; the stretching device is used to measure the tensile performance of the steel bar test piece 12, and the weight deviation meter 5 is used to measure the weight and length data of the steel bar test piece 12; the steel bar buffer rack 4 is located between the weight deviation meter 5 and the stretching device and is used to place the steel bar test piece 12 after being measured by the weight deviation meter 5.

[0023] In this embodiment, the control device of the robot 8 adopts the robot control cabinet 3. And an electric control cabinet 6 is set to schedule and control each device of the mobile intelligent comprehensive performance detection system for steel bars and process and transmit data. The electric control cabinet 6 includes a PLC and a PC industrial computer.

[0024] Specifically, the stretching device includes a tensile testing machine 10 and an extensometer 11. The tensile testing machine 10 conducts a tensile test on the steel bar test piece 12, and the extensometer 11 obtains the tensile performance. An oil source cabinet 2 is set to control the oil circuit of the tensile testing machine 10 and store the oil used for oil circuit control at the same time. In order to conduct a better tensile test, multiple tensile testing machines 10 with different tensile force values can also be set. For example, multiple stretching devices with different tensile forces can be set at different positions on the platform in each comprehensive performance detection system, and a steel bar buffer rack 4 is correspondingly set between each stretching device and the weight deviation meter 5. Or three comprehensive performance detection systems are set, and each comprehensive performance detection system is provided with a stretching device with different tensile forces. The extensometer 11 is a video extensometer, which is installed behind the tensile testing machine 10 to record the stress and deformation conditions of the steel bar test piece 12 in real time. In this embodiment, an LED lamp is provided on the bracket for fixing the extensometer 11 for supplementary lighting so that the tensile test is not affected by the environment and weather.

[0025] The utility model also provides a corresponding bar code on each of the steel bar specimens 12, and the test results and numbers corresponding to the steel bar specimens 12 are stored in the bar code. The test results include tensile properties, weight and length data. On this basis, please refer to Figure 2 As shown, the weight deviation instrument 5 includes a measurement component 13 and a bar code scanning device. The measurement component 13 detects the weight and length data. The bar code scanning device includes a bar code reader 14, and the bar code reader 14 identifies the bar code and is used to obtain the test results and numbers corresponding to the steel bar specimens 12 in real time. In this embodiment, before performance testing, a bar code is pasted on the surface of the steel bar specimen 12, and each steel bar specimen 12 has a corresponding number. The bar code is linked with the electric control cabinet 6 to store and update the test results of the steel bar specimen 12 corresponding to the number in real time.

[0026] The steel bar storage and return rack 7 includes a plurality of placement layers, and the steel bar specimens 12 are placed on the placement layers. Specifically, the steel bar specimens 12 with bar codes pasted are sequentially placed into the placement layers of the steel bar storage and return rack 7 by the robot 8, and then the robot 8 grabs the steel bar specimens 12 with bar codes and places them on the weight deviation instrument 5 for length and weight measurement. The utility model sets the qualified indexes for the weight and length data. When the qualified indexes are not met, the steel bar specimen 12 is considered an unqualified product. The weight deviation instrument 5 can detect the weight and length data of five steel bar specimens 12 at a time.

[0027] The steel bar specimens 12 after length and weight measurement are placed into the steel bar buffer rack 4. Please refer to Figure 3 As shown, specifically, the steel bar buffer rack 4 includes a square bracket 22 and several groups of trays. Each group of trays is provided with two brackets 21 symmetrically arranged along the height extension direction of the square bracket 22. The brackets 21 extend horizontally inward from the square bracket 22, and each bracket 21 is recessed downward to form a groove. One end of the steel bar specimen 12 is clamped in the groove of one bracket 21, and the other end is clamped in the groove of the other bracket 21. In order to place a plurality of steel bar specimens 12, a plurality of grooves are symmetrically arranged on the two brackets 21 of the same group of trays. Among them, in order to save resources, improve work efficiency and the accuracy of detection, only the steel bar specimens 12 with qualified weight and length are subjected to tensile property detection, that is, the tensile device is used to detect the steel bar specimens 12 in the qualified specimen tray 15, and the trays in the steel bar buffer rack 4 are divided into a qualified specimen tray 15 and an unqualified specimen tray 16. The qualified specimen tray 15 places the steel bar specimens 12 when the weight and length data are qualified, and the robot 8 grabs the qualified specimens from here and places them into the corresponding tensile testing machine 10 for tensile testing. The unqualified specimen tray 16 places the steel bar specimens 12 when the weight and length data are unqualified, and the robot 8 grabs the unqualified specimens from here and places them at the designated position. In this embodiment, four layers of trays are provided, and from top to bottom, there are three layers of qualified specimen trays 15 and one layer of unqualified specimen trays 16.

[0028] The comprehensive performance detection system further includes a movable material frame 9. The movable material frame 9 is close to the stretching device and is used to place the steel bar specimens 12 after being detected by the stretching device. The movable material frame 9 includes a frame body and rollers, and the rollers are fixedly installed at the bottom of the frame body. The movable material frame 9 is arranged in front of the stretching testing machine 10. The steel bar specimens 12 that have completed the stretching test are grabbed by the robot 8 and placed in the movable material frame 9. When the movable material frame 9 is full, the movable material frame 9 is pushed out. In addition, the comprehensive performance detection system is arranged on a platform with a certain height. In this embodiment, the platform adopts a standard container 1.

[0029] In addition, please refer to Figure 4 As shown, the robot 8 further includes a connecting component 17, a power device 18, and a fixture adapter plate 19. The connecting component 17 connects the robotic arm and the power device 18. The power device 18 is connected to the jaw 20 through the fixture adapter plate 19. The power device 18 drives the jaw 20 to rotate, and the jaw 20 can grip three steel bar specimens 12 at the same time.

[0030] Based on the above detection system settings, the following detection method can be realized, including the following necessary steps: Step 1): Stick barcodes on the surface of the steel bar specimens 12, and after sticking, put them into the steel bar storage and return rack 7; Step 2): The robot 8 grabs the steel bar specimens 12 from the steel bar storage and return rack 7 to the weight deviation meter 5. The barcode reader 14 scans the barcode. After successful identification, weight and length detection are carried out. The steel bar specimens 12 with unqualified weight and length data are put into the unqualified specimen tray 16 by the robot 8; Step 3): The robot grabs the qualified steel bar specimens 12 that need to be subjected to tensile performance detection and puts them into the qualified specimen tray 15, and then puts them into the stretching device for tensile performance detection; The qualified steel bar specimens 12 that do not need to be subjected to tensile performance detection are put into the storage and return rack 7; Step 4): The robot puts the steel bar specimens after the tensile performance detection into the movable material frame 9.

[0031] Next, a detailed description will be given of an implementation manner of the detection method based on the mobile intelligent steel bar comprehensive performance detection system. Step 1: The test personnel sequentially stick barcodes on the steel bar specimens 12 and place them in the placement layers of the steel bar storage and return rack 7 in sequence. When placing in the steel bar storage and return rack 7, they are placed in sequence from bottom to top without allowing gaps in the middle, and the placement state is recorded in the electric control cabinet 6.

[0032] Step 2: The robot 8 sequentially grabs the steel bar specimens 12 from the uppermost placement layer of the first steel bar storage and return rack 7 and moves them to the barcode reader 14 for scanning and identification. After successful identification, the steel bar specimens 12 are assigned corresponding numbers, and the data is processed by the electric control cabinet 6. Then, the robot 8 places the steel bar specimens 12 on the weight deviation meter 5 for length measurement and weighing. If the inspection is unqualified, the robot 8 clamps the unqualified specimens and places them on the unqualified specimen tray 16 on the fourth layer of the steel bar buffer rack 4, and then arranges them in order from top to bottom.

[0033] Step 3: If the inspection is qualified, it is judged whether tensile property testing is required. If tensile property testing is required, the robot 8 clamps the steel bar specimen 12 and places it on the qualified specimen tray 15 on the first layer of the adjacent steel bar buffer rack 4, and then arranges them in order from top to bottom. Then, the robot 8 clamps the steel bar specimen 12 that needs to be subjected to tensile property testing on the steel bar buffer rack 4 and places it in the jaw device of the first tensile testing machine 10 on the left for tensile testing. The video extensometer corresponding to the first tensile testing machine 10 records the force and deformation conditions of the measured specimen. If tensile property testing is not required, the qualified steel bar specimens 12 are placed on the steel bar storage and return rack 7.

[0034] Step 4: After the test is completed, the robot 8 removes the specimen from the tensile testing machine 10 and places it in the moving material frame 9 in front of the tensile testing machine 10. After the moving material frame 9 is full, the staff removes the frame.

[0035] In addition, to improve efficiency, during the tensile testing process of the first steel bar specimen 12, the above steps 2 to 4 are repeated to continue the experiment and conduct the inspection process of the second steel bar specimen 12. Specifically, the robot 8 clamps another steel bar specimen 12 from the steel bar storage and return rack 7 and moves it to the barcode reader 14 for scanning. After successful scanning and identification, it is clamped onto the weight deviation meter 5. Then, the robot 8 places the qualified specimens waiting on the steel bar buffer rack 4 into the tensile testing machine 10, and places the steel bar specimens 12 that have completed tensile property testing into the moving material frame 9. After the material frame 9 is full, it is pushed to a designated position to remove the steel bar specimens 12 inside, and the empty moving material frame 9 is placed in front of the tensile testing machine 10. During this process, through the interaction among the electric control cabinet 6, the robot control cabinet 3, and the barcode, the test results are updated in real time to the storage space within the barcode. After scanning by the barcode reader 14, not only the number of the steel bar specimen 12 can be obtained, but also the real-time test results such as length, weight data, and tensile properties can be obtained.

Claims

1. A mobile intelligent comprehensive performance detection system for steel bars, characterized in that, The comprehensive performance detection system includes a steel bar storage and return rack for placing steel bar specimens, a weight deviation meter, a steel bar buffer rack, a tensile device, and a robot; the robot includes a robotic arm and a gripper extending from the end of the robotic arm; the steel bar storage and return rack, the weight deviation meter, the steel bar buffer rack, and the tensile device are arranged in sequence in the order of upstream and downstream within the range reached by the movement of the end of the robotic arm; the tensile device is used to measure the tensile performance of the steel bar specimens, and the weight deviation meter is used to measure the weight and length data of the steel bar specimens; the steel bar buffer rack is located between the weight deviation meter and the tensile device and is used to place the steel bar specimens after being measured by the weight deviation meter.

2. The mobile intelligent comprehensive performance detection system for steel bars according to claim 1, wherein The tensile device includes a tensile testing machine and an extensometer. The tensile testing machine conducts a tensile test on the steel bar specimens, and the tensile performance is obtained by the extensometer.

3. The mobile intelligent comprehensive performance detection system for steel bars according to claim 1, characterized in that, Each of the steel bar specimens is provided with a corresponding bar code, and the bar code stores the detection results and numbers of the corresponding steel bar specimens. The detection results include tensile performance, weight, and length data.

4. The mobile intelligent comprehensive performance detection system for steel bars according to claim 3, characterized in that, The weight deviation meter includes a measurement component and a code scanning device. The measurement component detects and obtains the weight and length data. The code scanning device includes a code reader that identifies the bar code and is used to obtain the detection results and numbers of the corresponding steel bar specimens in real time.

5. The mobile intelligent comprehensive performance detection system for steel bars according to claim 1, wherein The steel bar buffer rack includes a square bracket and several groups of trays. Each group of trays is provided with two brackets symmetrically arranged along the height extension direction of the square bracket. The brackets extend horizontally inward from the square bracket, and each bracket is recessed downward to form a groove.

6. The mobile intelligent comprehensive performance detection system for steel bars according to claim 5, wherein, The trays include a qualified specimen tray and an unqualified specimen tray. The qualified specimen tray is used to place the steel bar specimens when the weight and length data are qualified, and the unqualified specimen tray is used to place the steel bar specimens when the weight and length data are unqualified; the tensile device is used to detect the steel bar specimens in the qualified specimen tray.

7. The mobile intelligent comprehensive performance detection system for steel bars according to claim 1, characterized in that The comprehensive performance detection system further includes a movable material frame. The movable material frame is close to the tensile device and is used to place the steel bar specimens after being detected by the tensile device. The movable material frame includes a frame body and rollers, and the rollers are installed and fixed at the bottom of the frame body.

8. The mobile intelligent comprehensive performance detection system for steel bars according to claim 1, wherein, The robot further includes a connection component, a power device, and a fixture adapter plate. The connection component connects the robotic arm and the power device. The power device is connected to the gripper through the fixture adapter plate, and the power device drives the gripper to rotate.

9. The mobile intelligent comprehensive performance detection system for steel bars according to claim 1, characterized in that, The comprehensive performance detection system is arranged on a platform with a certain height.

10. The mobile intelligent comprehensive performance detection system for steel bars according to claim 9, characterized in that, The platform adopts a standard container.

Images