Three-system detection equipment and method for die steel

Abstract

The invention relates to the field of die steel detection, and discloses die steel three-system detection equipment and method, and the equipment comprises a rack which is internally provided with a rotating roller and is used for conveying a workpiece; the top of the electric sliding block is connected with a support, and the electric sliding block is arranged in the rack in a sliding mode and used for driving the support to move; the support is arranged on one side of the support, and a first laser range finder is installed on one side of the support; and the base is located above the rack and connected with the support, a second laser range finder is installed at the bottom of the base, and a driving mechanism is installed on one side of the outer wall of the support and used for driving the base and the support to move. By arranging the electric push rod and the driving mechanism, integrated automatic driving of the laser range finder can be realized, and manual measurement operation is not needed, so that the problems of low measurement precision, low detection efficiency, large personal error and the like in traditional manual measurement are avoided, and the automation degree and the stability of detection are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mold steel detection, and in particular to a three-series detection device and method for mold steel. Background Art

[0002] During the production and processing of mold steel, the accuracy of processing parameters directly affects the quality and performance of the mold steel, which in turn affects the subsequent mold manufacturing and the production of related products. Traditional mold steel processing parameter measurement methods, such as manual measurement or simple mechanical measurement methods, have problems such as low measurement accuracy, low efficiency, and large human errors. Although some existing methods use laser detection for measurement, there are deficiencies in the comprehensive and multi-dimensional accurate detection of mold steel. It is impossible to achieve efficient and accurate detection based on the XYZ three-axis coordinate system, and there is a lack of effective means to quickly compare the parameters after detection and accurately evaluate the degree of product qualification. It is difficult to meet the needs of modern mold steel production and processing for high-precision and high-efficiency detection. Summary of the Invention

[0003] The purpose of the present invention is to provide a three-series detection device and method for mold steel, which solves the problems of low precision and poor efficiency of the existing detection method, inability to achieve all-round three-dimensional detection of mold steel, and lack of effective parameter comparison and qualification assessment means.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a three-series detection device for mold steel, comprising: The frame has rollers installed inside for conveying the workpiece; An electric slider, the top of which is connected to a bracket, the electric slider is slidably arranged in the frame, and is used to drive the bracket to move; a support is arranged on one side of the bracket, and a laser rangefinder is installed on one side of the support; The base is located above the frame and is connected to the bracket. A laser rangefinder 2 is installed at the bottom of the base. A driving mechanism is installed on one side of the outer wall of the bracket, which is used to drive the base and the bracket to move.

[0005] Preferably, the driving mechanism includes a motor 1, which is fixedly connected to the top of the outer wall of the bracket, and the output end of the motor 1 is fixedly connected to a threaded rod 1, which is threadedly connected to the base, and a support rod is provided above the threaded rod 1, which is fixedly connected to the bracket, and the outer wall of the support rod is slidably connected to the base.

[0006] Preferably, the end of the outer wall of the threaded rod 1 is fixedly connected to a bevel gear 1, one side of the bracket is fixedly connected to a support plate, the middle part of the support plate is rotatably connected to a threaded rod 2, the threaded rod 2 is threadedly connected to the support, the top of the threaded rod 2 is fixedly connected to a bevel gear 2, the bevel gear 1 and the bevel gear 2 are meshed and connected, and the outer wall of the support is slidably connected to one side of the outer wall of the bracket.

[0007] Preferably, an electric push rod is fixedly connected to one side of the outer wall of the base, the output end of the electric push rod is fixedly connected to a mounting plate, the second laser rangefinder is installed in the middle of the mounting plate, a sliding rod is fixedly connected to one side of the mounting plate, and a slide plate is fixedly connected to the other side of the outer wall of the base, and the outer wall of the sliding rod is slidably connected to the middle of the slide plate.

[0008] Preferably, the bottom of one side of the outer wall of the frame is fixedly connected to motor 2, the output end of motor 2 is fixedly connected to a bidirectional screw, the rotation of the bidirectional screw is connected to the inner bottom of the frame, both sides of the outer wall of the bidirectional screw are threadedly connected to pull rods, the tops of the pull rods on both sides are fixedly connected to clamping rods, and the clamping rods are located between two adjacent rollers, the insides of the pull rods on both sides are slidably connected to pillars, and the pillars are fixedly connected to the frame.

[0009] Preferably, a slide groove is provided on the top surface of the frame, a guide rod is fixedly connected to the inside of the slide groove, an outer wall of the guide rod is slidably connected to the middle part of the electric slider, and the outer wall of the electric slider is slidably connected to the inner wall of the slide groove.

[0010] Preferably, a controller is fixedly connected to one side of the bottom of the frame, a display screen is installed on one side of the outer wall of the frame, and the controller is electrically connected to the display screen, motor 1, electric push rod, motor 2, electric slider, laser rangefinder 1 and laser rangefinder 2.

[0011] Preferably, the controller includes: A receiving unit, configured to receive data from the first laser rangefinder and the second laser rangefinder; A preprocessing unit, configured to preprocess the data received by the receiving unit, wherein the preprocessing includes denoising, unifying timestamps, and normalizing; Modeling unit, which builds a three-dimensional model of the workpiece based on the pre-processed data; The calibration and evaluation unit compares the preprocessed data with the standard data, calibrates the comparison results on the three-dimensional model, and outputs them to the display screen for display.

[0012] Preferably, the denoising includes: The original collected data of laser rangefinder 1 and laser rangefinder 2 are filtered using the sliding average filtering method, and the calculation formula is: Among them, D denoise (i) is the value of the data point after denoising; D raw (j) the value of the jth original collected data point; i is the index of the data point currently undergoing denoising; j is the index of the adjacent data point for calculating the average; 2k+1 is the length of the sliding window; the unified timestamp includes: The denoised data is mapped to a unified time axis through linear interpolation. Assuming the original timestamps of the measured data are t1 and t2, and the interpolation time point is t, its value is: Among them, D aligned (t) is the aligned distance measurement data value at time point t; D denoise (t1) is the denoised distance measurement value at time point t1, which serves as the starting point of interpolation; D denoise (t2) is the denoised distance measurement value at time point t2, which serves as the end point of interpolation; t is the target time point to be interpolated; The normalization includes: The data with unified timestamps are normalized to limit their range to the interval [0,1]. The normalization formula is: Among them, D aligned is the distance measurement data value after alignment; D norm is the normalized data value; D min For all D in the current processing batch aligned The minimum value in the data; D max For all D in the current processing batch aligned The maximum value in the data.

[0013] A three-series detection method for mold steel comprises the following steps: Place the workpiece on the roller and push it to the middle of the frame; The second driving motor drives the bidirectional screw to rotate so that the clamping rods on both sides approach each other, thereby squeezing the workpiece in the middle of the frame; Turn on laser rangefinder 1 and laser rangefinder 2; The driving motor 1 drives the threaded rod 1 and the bevel gear 1 to rotate, and the threaded rod 1 drives the base to move the laser rangefinder 2 along the top surface of the workpiece, and monitors the distance between the laser rangefinder 2 and the top surface of the workpiece. The bevel gear 1 drives the bevel gear 2 and the threaded rod 2 to rotate, thereby driving the support and the side wall of the laser rangefinder 1 to move, and monitors the distance between the laser rangefinder 1 and the side wall of the workpiece. The electric slider is driven to drive the bracket to move along the guide rod so that the monitoring range of the second laser rangefinder and the first laser rangefinder covers both sides of the outer wall and the top surface of the workpiece; The controller then receives data from the laser rangefinder 1 and the laser rangefinder 2 and displays them on the display screen.

[0014] In summary, the present invention includes at least one of the following beneficial technical effects: 1. The present invention realizes the integrated automatic driving of the laser rangefinder by providing an electric push rod and a driving mechanism, eliminating the need for manual measurement operations. This avoids the problems of low measurement accuracy, low detection efficiency, and large human errors in traditional manual measurement, and significantly improves the degree of automation and stability of detection.

[0015] 2. The present invention improves the electric push rod and the driving mechanism to respectively drive the laser rangefinder 1 and the laser rangefinder 2 to move in different directions, so that the equipment can synchronously scan and detect the top surface and the opposite surfaces on both sides of the mold steel outer wall, thereby realizing all-round coverage measurement of the outer contour of the workpiece, further improving the integrity and accuracy of the detection.

[0016] 3. The present invention improves the coordination between the second motor and the bidirectional screw, which can effectively clamp and accurately position the mold steel workpiece, ensuring that the workpiece remains stable during the detection process, avoiding interference with the measurement results caused by displacement or offset, and improving the reliability and measurement consistency of the system.

[0017] 4. The present invention uses the pre-processing unit in the controller to denoise, unify the timestamp and normalize the collected data, effectively improving the accuracy and availability of the ranging data, providing high-quality basic data support for subsequent three-dimensional modeling and standard comparison, and further enhancing the overall detection effect of the system.

[0018] 5. The present invention can push out the mounting plate and then push out the second laser rangefinder by driving the electric push rod. Therefore, by extending or retracting the output end of the electric push rod, the distance between the second laser detector and the frame can be adjusted, and mold steels of different sizes can be tested, thereby improving the versatility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic structural diagram of the clamping rod portion of the present invention; Figure 3 It is a schematic structural diagram of the roller part of the present invention; Figure 4 It is a partial structural diagram of the electric slider of the present invention; Figure 5 This is a diagram showing the structure of the base portion of the present invention; Figure 6 This is a diagram showing the structure of the support rod of the present invention; Figure 7 This is a partial structural breakdown diagram of the mounting plate of the present invention.

[0020] Among them, 1. Frame; 2. Bracket; 3. Electric slider; 4. Support; 5. Laser rangefinder 1; 6. Base; 7. Laser rangefinder 2; 8. Roller; 9. Motor 1; 10. Threaded rod 1; 11. Support rod; 12. Bevel gear 1; 13. Bevel gear 2; 14. Threaded rod 2; 15. Support plate; 16. Electric push rod; 17. Mounting plate; 18. Slide rod; 19. Slide plate; 20. Motor 2; 21. Bidirectional screw; 22. Pull rod; 23. Clamp rod; 24. Pillar; 25. Controller; 26. Display screen; 27. Slide chute; 28. Guide rod. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1 -Attached Figure 7 , the present invention is described in further detail.

[0022] The present invention provides a three-system detection device for mold steel, comprising: a frame 1, inside which a roller 8 is installed for conveying a workpiece; an electric slider 3, the top of which is connected to a bracket 2, the electric slider 3 is slidably arranged in the frame 1, and is used to drive the bracket 2 to move; a support 4, which is arranged on one side of the bracket 2, and a laser rangefinder 5 is installed on one side of the support 4; a base 6, which is located above the frame 1 and connected to the bracket 2, and a laser rangefinder 7 is installed on the bottom of the base 6, and a driving mechanism is installed on one side of the outer wall of the bracket 2, which is used to drive the base 6 and the support 4 to move.

[0023] In this embodiment, the electric slider 3 can drive the bracket 2 to move, and then drive the support 4 and the base 6 to move. At this time, the laser rangefinder 1 5 and the laser rangefinder 2 7 can detect and scan the top surface and the opposite surfaces on both sides of the outer wall of the mold steel, thereby completing the measurement of the surface of the mold steel.

[0024] The drive mechanism includes a motor 19, which is fixedly connected to the top of the outer wall of bracket 2. The output end of motor 19 is fixedly connected to a threaded rod 10, which is threadedly connected to base 6. A support rod 11 is provided above threaded rod 10, which is fixedly connected to bracket 2, and the outer wall of support rod 11 is slidably connected to base 6. The end of the outer wall of threaded rod 10 is fixedly connected to a bevel gear 12. A support plate 15 is fixedly connected to one side of bracket 2. The middle of support plate 15 is rotatably connected to threaded rod 2 14, which is threadedly connected to bracket 4. The top of threaded rod 14 is fixedly connected to bevel gear 2 13. Bevel gear 12 and bevel gear 2 13 are meshed and connected. The outer wall of bracket 4 is slidably connected to one side of the outer wall of bracket 2.

[0025] In this embodiment, the driving motor 19 can drive the threaded rod 10 and the bevel gear 12 to rotate, and the threaded rod 10 can drive the base 6 to slide along the support rod 11. The bevel gear 12 can drive the bevel gear 2 13 and the threaded rod 2 14 to rotate, thereby driving the support 4 to move. Therefore, the laser rangefinder 2 7 and the laser rangefinder 1 5 can be driven to move respectively through the base 6 and the support 4. At this time, the two opposite surfaces and the top surface of the outer wall of the mold steel can be scanned and detected.

[0026] An electric push rod 16 is fixedly connected to one side of the outer wall of the base 6, and the output end of the electric push rod 16 is fixedly connected to a mounting plate 17. The laser rangefinder 2 7 is installed in the middle of the mounting plate 17. A slide rod 18 is fixedly connected to one side of the mounting plate 17. A slide plate 19 is fixedly connected to the other side of the outer wall of the base 6, and the outer wall of the slide rod 18 is slidably connected to the middle of the slide plate 19.

[0027] In this embodiment, by driving the electric push rod 16, the mounting plate 17 can be driven to move downward close to the frame 1. At this time, the height of the laser rangefinder can be adjusted, and mold steels of different sizes can be tested.

[0028] The bottom of one side of the outer wall of the frame 1 is fixedly connected to a motor 20, and the output end of the motor 20 is fixedly connected to a bidirectional screw 21. The rotation of the bidirectional screw 21 is connected to the inner bottom of the frame 1. Both sides of the outer wall of the bidirectional screw 21 are threadedly connected to pull rods 22. The tops of the pull rods 22 on both sides are fixedly connected to clamping rods 23, and the clamping rods 23 are located between two adjacent rollers 8. The insides of the pull rods 22 on both sides are slidably connected to pillars 24, and the pillars 24 are fixedly connected to the frame 1.

[0029] In this embodiment, the bidirectional screw 21 can be driven to rotate by motor 20. At this time, the bidirectional screw 21 can drive the pull rods 22 on both sides of its outer wall to approach each other, and then drive the clamping rods 23 on both sides to approach each other, so that the mold steel can be clamped to achieve calibration of the mold steel position.

[0030] A chute 27 is defined on the top surface of the frame 1. A guide rod 28 is fixedly connected to the interior of the chute 27. The outer wall of the guide rod 28 is slidably connected to the middle portion of the electric slider 3. The outer wall of the electric slider 3 is slidably connected to the inner wall of the chute 27. A controller 25 is fixedly connected to one side of the bottom of the frame 1. A display screen 26 is mounted on one side of the outer wall of the frame 1. The controller 25 is electrically connected to the display screen 26, motor 1 9, electric push rod 16, motor 2 20, electric slider 3, laser rangefinder 1 5, and laser rangefinder 2 7.

[0031] In this embodiment, the moving direction of the electric slider 3 can be guided by the slide groove 27 and the guide rod 28. Therefore, after the electric slider 3 is driven to operate, it can drive the bracket 2 to move, and then drive the laser rangefinder 1 5 and the laser rangefinder 2 7 to move in and out, and cooperate with the operation of the motor 2 20, so that the opposite surfaces and the top surface on both sides of the outer wall of the mold steel can be fully covered, and the final detection results can be displayed in real time using the display screen 26.

[0032] The controller 25 includes: A receiving unit, used to receive data from the laser rangefinder 1 5 and the laser rangefinder 2 7; A preprocessing unit, used to preprocess the data received by the receiving unit, including denoising, unified timestamp and normalization; Modeling unit, which builds a three-dimensional model of the workpiece based on the pre-processed data; The calibration evaluation unit compares the pre-processed data with the standard data, calibrates the comparison results on the three-dimensional model, and outputs them to the display screen 26 for display.

[0033] Denoising includes: The original collected data of laser rangefinder 15 and laser rangefinder 27 are filtered using the sliding average filtering method, and the calculation formula is: Among them, D denoise (i) is the value of the data point after denoising; D raw (j) The value of the jth original collected data point; i is the index of the data point currently undergoing denoising; j is the index of the neighboring data point for calculating the average; 2k+1 is the length of the sliding window; the unified timestamp includes: The denoised data is mapped to a unified time axis through linear interpolation. Assuming the original timestamps of the measured data are t1 and t2, and the interpolation time point is t, its value is: Among them, D aligned (t) is the aligned distance measurement data value at time point t; D denoise (t1) is the denoised distance measurement value at time point t1, which serves as the starting point of interpolation; D denoise (t2) is the denoised distance measurement value at time point t2, which serves as the end point of interpolation; t is the target time point to be interpolated; Normalization includes: The data with unified timestamps are normalized to limit their range to the interval [0,1]. The normalization formula is: Among them, D alignedis the distance measurement data value after alignment; D norm is the normalized data value; D min For all D in the current processing batch aligned The minimum value in the data; D max For all D in the current processing batch aligned The maximum value in the data.

[0034] In this embodiment, the controller 25 is mainly composed of the following core units: Receiving unit This unit is responsible for receiving real-time data from laser rangefinder 1 5 and laser rangefinder 2 7, ensuring the integrity and timeliness of data collection. Through efficient data collection methods, the receiving unit can obtain ranging data in a timely manner, providing a foundation for subsequent data processing.

[0035] Preprocessing unit The preprocessing unit processes the received data to ensure data quality. Its main tasks include denoising, timestamp unification, and normalization. The details are as follows: Denoising To eliminate the noise that may be generated during the laser rangefinder's measurement process, the preprocessing unit first applies a sliding average filter to the raw data. This method effectively smooths the measured data, removes random errors, and ensures the accuracy of subsequent data analysis. This denoising process significantly improves the accuracy of measurement results and avoids errors caused by noise interference.

[0036] Unified timestamp Because the acquisition times of laser rangefinder 1 5 and laser rangefinder 2 7 may differ, a unified timestamp is used to map the two sets of data onto a unified timeline through linear interpolation. This operation ensures the synchronization of the data from the two rangefinders, making subsequent comparison and analysis more accurate and avoiding the impact of data misalignment at different time points on the analysis results. This process effectively integrates data from multiple measurement channels, providing accurate time series data for 3D modeling of workpieces.

[0037] Normalization Normalization converts data from different ranges into a standardized numerical range of [0, 1], avoiding processing bias caused by varying data magnitudes. This step is crucial for enhancing the robustness of subsequent modeling and comparison, making comparisons between different measurement devices or datasets fairer and more accurate.

[0038] Through this series of preprocessing, the controller 25 can effectively filter out interference in the data and ensure the efficiency and accuracy of subsequent processing.

[0039] Modeling Unit After data preprocessing is complete, the modeling unit creates a 3D model of the workpiece based on the processed data. This process ensures high-fidelity reproduction of the workpiece's surface contours through precise data input. By creating an accurate 3D model, the system can fully analyze the workpiece's dimensions, shape, and other characteristics.

[0040] Calibration evaluation unit The calibration evaluation unit compares preprocessed data with standard data and applies the comparison results to the 3D model for calibration. This function compares deviations between the standard data and the measured results, performing real-time error correction to ensure high accuracy. The comparison results are displayed in real time on the display 26, allowing the operator to intuitively understand the workpiece's conformity and deviations.

[0041] De-noising can effectively eliminate random errors in the measurement process, significantly improve the accuracy and reliability of the data, and avoid the interference of low-quality data on subsequent analysis. Unified timestamp processing ensures that the data of laser rangefinders 15 and 2 can be effectively compared and analyzed within a unified time frame, avoiding data inconsistencies caused by time dislocation and improving the accuracy of data integration. At the same time, normalization processing reduces the impact of differences between different data sources on system performance by converting data of different magnitudes into a standardized numerical range, ensuring the efficiency and accuracy of calculations. Therefore, when the calibration evaluation unit compares with the standard data, it can correct the errors of the workpiece detection results in real-time monitoring and display the final detection results, ensuring that the detection data of each workpiece meets the set standards, thereby improving the reliability and automation level of the entire detection process.

[0042] This embodiment also provides a detection method based on the above device, including the following steps: Place the workpiece on the roller 8 and push the workpiece to the middle of the frame 1; The second driving motor 20 drives the bidirectional screw 21 to rotate so that the clamping rods 23 on both sides approach each other, thereby squeezing the workpiece into the middle of the frame 1; Turn on laser rangefinder 1 5 and laser rangefinder 2 7; The driving motor 19 drives the threaded rod 10 and the bevel gear 12 to rotate, and the threaded rod 10 drives the base 6 to move the laser rangefinder 2 7 along the top surface of the workpiece, and monitors the distance between the laser rangefinder 2 7 and the top surface of the workpiece. The bevel gear 12 drives the bevel gear 2 13 and the threaded rod 2 14 to rotate, thereby driving the support 4 and the side wall of the laser rangefinder 5 to move, and monitors the distance between the laser rangefinder 5 and the side wall of the workpiece; Drive the electric slider 3 to drive the bracket 2 to move along the guide rod 28, so that the monitoring range of the laser rangefinder 2 7 and the laser rangefinder 1 5 covers both sides of the outer wall and the top surface of the workpiece; The controller 25 then receives the data from the laser rangefinder 1 5 and the laser rangefinder 2 7 and displays the data on the display screen 26 .

[0043] Working principle: When using: First, the workpiece to be tested, i.e., the mold steel, is placed on the rotating roller 8 located in the middle of the frame 1. The mold steel is moved to the center of the frame 1 by pushing. Then, the controller 25 starts the motor 20, which drives the bidirectional screw 21 to rotate. The bidirectional screw 21 can simultaneously drive the pull rod 22 and the clamping rod 23 on both sides thereof to move synchronously and approach each other. At this time, the pull rod 22 slides along the support 24. At this time, the clamping rod 23 can squeeze the mold steel to move it to the center of the frame 1. Next, turn on the laser rangefinder 15 and the laser rangefinder 27, which are used to measure the top surface and side wall of the workpiece respectively. Then start the motor 19 to drive the threaded rod 10 and the bevel gear 12 to rotate. The rotation of the threaded rod 10 can drive the base 6 and the laser rangefinder 27 to move along the support rod 11 on the top surface of the mold steel to scan the top surface contour. At the same time, the bevel gear 12 drives the meshing bevel gear 2 13 and the threaded rod 2 14 to rotate, so that the support 4 equipped with the laser rangefinder 15 moves along the side wall of the bracket 2 to measure the surfaces of the two opposite sides of the outer wall of the mold steel. Subsequently, the electric slider 3 is driven to drive the bracket 2 to move along the guide rod 28, thereby driving the laser rangefinder 1 5 and the laser rangefinder 2 7 to move laterally as a whole, so that the device can fully measure both sides and the top surface of the outer contour of the mold steel; Finally, the controller 25 collects the measurement data obtained by the two groups of laser rangefinders and displays them synchronously on the display screen 26 to realize the visualization of the surface morphology of the workpiece.

[0044] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A three-series detection equipment for mold steel, characterized in that: include: A frame (1) is provided with a roller (8) installed therein for conveying the workpiece; An electric slider (3) is connected to a bracket (2) on its top, and the electric slider (3) is slidably arranged in the frame (1) to drive the bracket (2) to move; A support (4) is provided on one side of the bracket (2), and a laser rangefinder (5) is installed on one side of the support (4); A base (6) is located above the frame (1) and is connected to the bracket (2). A second laser rangefinder (7) is installed at the bottom of the base (6). A driving mechanism is installed on one side of the outer wall of the bracket (2) for driving the base (6) and the bracket (4) to move.

2. The mold steel three-series detection equipment according to claim 1 is characterized in that: The driving mechanism includes a motor (9), the motor (9) is fixedly connected to the top of the outer wall of the bracket (2), the output end of the motor (9) is fixedly connected to a threaded rod (10), the threaded rod (10) is threadedly connected to the base (6), a support rod (11) is provided above the threaded rod (10), the support rod (11) is fixedly connected to the bracket (2), and the outer wall of the support rod (11) is slidably connected to the base (6).

3. The three-series detection equipment for mold steel according to claim 2, characterized in that: The end of the outer wall of the threaded rod (10) is fixedly connected to a bevel gear (12), one side of the bracket (2) is fixedly connected to a support plate (15), the middle part of the support plate (15) is rotatably connected to the threaded rod (14), the threaded rod (14) is threadedly connected to the support (4), the top of the threaded rod (14) is fixedly connected to the bevel gear (13), the bevel gear (12) and the bevel gear (13) are meshed and connected, and the outer wall of the support (4) is slidably connected to one side of the outer wall of the bracket (2).

4. The mold steel three-series detection equipment according to claim 2, characterized in that: An electric push rod (16) is fixedly connected to one side of the outer wall of the base (6), an output end of the electric push rod (16) is fixedly connected to a mounting plate (17), the second laser rangefinder (7) is mounted on the middle of the mounting plate (17), a slide bar (18) is fixedly connected to one side of the mounting plate (17), a slide plate (19) is fixedly connected to the other side of the outer wall of the base (6), and the outer wall of the slide bar (18) is slidably connected to the middle of the slide plate (19).

5. The three-series detection equipment for mold steel according to claim 4, characterized in that: The bottom of one side of the outer wall of the frame (1) is fixedly connected to a second motor (20), the output end of the second motor (20) is fixedly connected to a bidirectional screw (21), the rotation of the bidirectional screw (21) is connected to the inner bottom of the frame (1), both sides of the outer wall of the bidirectional screw (21) are threadedly connected to pull rods (22), the tops of the pull rods (22) on both sides are fixedly connected to clamping rods (23), and the clamping rods (23) are located between two adjacent rollers (8), the insides of the pull rods (22) on both sides are slidably connected to pillars (24), and the pillars (24) are fixedly connected to the frame (1).

6. The three-series detection equipment for mold steel according to claim 1, characterized in that: A slide groove (27) is provided on the top surface of the frame (1), a guide rod (28) is fixedly connected to the interior of the slide groove (27), an outer wall of the guide rod (28) is slidably connected to the middle part of the electric slider (3), and an outer wall of the electric slider (3) is slidably connected to the inner wall of the slide groove (27).

7. The three-series detection equipment for mold steel according to claim 5, characterized in that: A controller (25) is fixedly connected to one side of the bottom of the frame (1), a display screen (26) is installed on one side of the outer wall of the frame (1), and the controller (25) is electrically connected to the display screen (26), the first motor (9), the electric push rod (16), the second motor (20), the electric slider (3), the first laser rangefinder (5) and the second laser rangefinder (7).

8. The three-series detection equipment for mold steel according to claim 7, characterized in that: The controller (25) includes: a receiving unit for receiving data from the first laser rangefinder (5) and the second laser rangefinder (7); A preprocessing unit, configured to preprocess the data received by the receiving unit, wherein the preprocessing includes denoising, unifying timestamps, and normalizing; Modeling unit, which builds a three-dimensional model of the workpiece based on the pre-processed data; The calibration evaluation unit compares the pre-processed data with the standard data, calibrates the comparison results on the three-dimensional model, and outputs them to the display screen (26) for display.

9. The three-series detection equipment for mold steel according to claim 8, characterized in that: The denoising comprises: The original collected data of laser rangefinder 1 (5) and laser rangefinder 2 (7) are filtered using the sliding average filtering method, and the calculation formula is: Among them, D denoise (i) is the value of the ground and data point after denoising; D raw (j) is the value of the jth original collected data point; is the index of the data point currently undergoing denoising; is the index of the adjacent data point used to calculate the average value; is the length of the sliding window; The unified timestamp includes: The denoised data is mapped to a unified time axis through linear interpolation. Assuming the original timestamps of the measured data are t1 and t2, and the interpolation time point is t, its value is: Among them, D aligned (t) is the aligned distance measurement data value at time point t; D denoise (t1) is the denoised distance measurement value at time point t1, which serves as the starting point of interpolation; D denoise (t2) is the denoised distance measurement value at time point t2, which serves as the end point of interpolation; t is the target time point to be interpolated; The normalization includes: The data with unified timestamps are normalized to limit their range to the interval [0,1]. The normalization formula is: Among them, D aligned is the distance measurement data value after alignment; D norm is the normalized data value; D min For all D in the current processing batch aligned The minimum value in the data; D max For all D in the current processing batch aligned The maximum value in the data.

10. A three-series detection method for mold steel, based on the three-series detection device for mold steel according to any one of claims 1 to 9, characterized in that: The following steps are included: Placing the workpiece on the roller (8) and pushing the workpiece to the middle of the frame (1); The second driving motor (20) drives the bidirectional screw (21) to rotate so that the clamping rods (23) on both sides approach each other, thereby squeezing the workpiece to the center of the frame (1); Turn on the laser rangefinder 1 (5) and the laser rangefinder 2 (7); The driving motor 1 (9) drives the threaded rod 1 (10) and the bevel gear 1 (12) to rotate, and the threaded rod 1 (10) drives the base (6) to move the laser rangefinder 2 (7) along the top surface of the workpiece, and monitors the distance between the laser rangefinder 2 (7) and the top surface of the workpiece, and the bevel gear 1 (12) drives the bevel gear 2 (13) and the threaded rod 2 (14) to rotate, thereby driving the support (4) and the side wall of the laser rangefinder 1 (5) to move, and monitors the distance between the laser rangefinder 1 (5) and the side wall of the workpiece; The electric slider (3) is driven to drive the bracket (2) to move along the guide rod (28), so that the monitoring range of the second laser rangefinder (7) and the first laser rangefinder (5) covers both sides of the outer wall and the top surface of the workpiece; The controller (25) then receives the data from the laser rangefinder 1 (5) and the laser rangefinder 2 (7) and displays them on the display screen (26).

Images