A laser detection device and method for detecting the profile of a valve workpiece

Abstract

The application relates to the technical field of laser profile detection, in particular to a laser detection equipment and method for valve workpiece profile detection, which comprises a conveying table and a detection main box and further comprises a scanning detection assembly; the scanning detection assembly comprises sliding racks, import sensing laser heads, laser receivers, sensing height adjusting mechanisms, side surface estimation components and scanning components; two sliding racks are slidingly installed at the feeding port of the detection main box; the two sides of each sliding rack are respectively provided with an import sensing laser head and a laser receiver; the laser emitted by the import sensing laser head is inductively received by the laser receiver; two sensing height adjusting mechanisms are connected with the two sliding racks; the valve workpiece size to be detected can be sensed and estimated in advance through the components; then, the laser detection position and range are adjusted according to the sensing and estimation result, so that the overall scanning efficiency is higher.

Description

Technical Field

[0001] This invention relates to the field of laser shape inspection technology, and in particular to a laser inspection device and method for inspecting the shape of valve workpieces. Background Technology

[0002] Laser inspection equipment for valve workpiece shape inspection, with its high precision, non-contact and fast scanning characteristics, can accurately capture the shape parameters of valves such as complex curved surfaces, fine contours and key dimensions. It effectively avoids the inaccuracy of traditional inspection methods caused by contact deformation, human error and other factors, and provides reliable quality data support for valve production. Its role is not only to strictly control the shape accuracy of valves, but also to ensure the precise fit and reliable sealing between valve components, and to ensure the stable operation of valves in fluid control systems. When existing laser inspection equipment scans and inspects the shape of valve workpieces, the distance between the laser emission point and the workpiece significantly affects the final inspection results. If the distance is too close, the laser spot is prone to distortion, the coverage area is limited, and small defects on the workpiece surface have a more obvious impact on the laser, reducing inspection accuracy and potentially damaging the workpiece due to concentrated energy. If the distance is too far, the laser spreads during propagation, causing the spot to become larger and the energy to attenuate, weakening the ability to distinguish details of the workpiece and making it difficult to capture small defects. At the same time, it is more susceptible to environmental factors, and the signal is easily interfered with, resulting in unstable inspection results and increased errors, affecting the reliability and accuracy of the inspection. Therefore, operators usually need to adjust the placement of the workpiece to be inspected and the shooting point in advance according to the inspection range of the laser inspection equipment, which makes it very troublesome to scan and inspect the shape of valve workpieces of different types and sizes, resulting in low overall inspection efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a laser inspection device and method for inspecting the shape of valve workpieces. The device can sense and estimate the size of the valve workpiece to be inspected in advance through a set component, and then adjust the laser inspection position and range accordingly based on the sensing and estimation results, so as to improve the overall scanning efficiency.

[0004] To achieve the above objectives, the present invention provides a laser inspection device for inspecting the shape of valve workpieces, including a conveyor and an inspection main box, wherein the inspection main box is mounted on the conveyor and also includes a scanning inspection component; The scanning and detection assembly includes a sliding frame, an inlet sensing laser head, a laser receiver, a sensing height adjustment mechanism, a side measurement component, and a scanning component. Two sliding frames are slidably mounted on the feed port of the main detection box. The inlet sensing laser head and the laser receiver are respectively installed on both sides of each sliding frame. The laser receiver senses and receives the laser emitted by the inlet sensing laser head. The two sensing height adjustment mechanisms are respectively connected to the two sliding frames and are used to drive the corresponding sliding frames.

[0005] The side measurement component includes an upper lifting frame, a lead screw height adjustment mechanism, a laser ranging mechanism, an adjustment assembly, and a cutoff reflection component. The upper lifting frame is slidably mounted on one side of the main detection box. The lead screw height adjustment mechanism is connected to the upper lifting frame and is used to drive the upper lifting frame. The laser ranging mechanism is connected to the upper lifting frame through the adjustment assembly. The adjustment assembly is connected to the upper lifting frame and is used to adjust the sensing range of the laser ranging mechanism. The cutoff reflection component is connected to the upper lifting frame and is used to cooperate with the laser ranging mechanism to estimate and judge the lateral dimensions of the workpiece to be scanned and detected.

[0006] The scanning component includes a transverse frame, a lead screw transverse mechanism, a laser scanning mechanism, and a scanning adjustment component. The transverse frame is slidably installed inside the main detection box. The lead screw transverse mechanism is connected to the transverse frame and is used to drive the transverse frame. The laser scanning mechanism is connected to the transverse frame through the scanning adjustment component. The scanning adjustment component is connected to the transverse frame and is used to adjust the scanning range of the laser scanning mechanism.

[0007] The loading and adjusting components include a loading box frame, a side slide frame, and a loading plate. The loading box frame is fixedly installed on one side of the upper lifting frame and is located at the discharge port of the main detection box. The side slide frame is slidably installed inside the loading box frame. The laser ranging mechanism is installed on the loading plate, and the loading plate is slidably installed on the side slide frame.

[0008] The truncated reflective component includes a truncated box frame and a reflective plate. The truncated box frame is fixedly installed on the side of the upper lifting frame away from the loading box frame, and the truncated box frame is located at the feeding port of the main detection box. The reflective plate is fixedly installed on the side of the truncated box frame close to the laser scanning mechanism.

[0009] The scanning adjustment component includes a flat rotating frame, a flat rotating motor, a sliding adjustment frame, a side-fixed rack, a drive gear, and a drive motor. The flat rotating frame is rotatably mounted on the bottom of the upper lifting frame. The output shaft of the flat rotating motor is connected to the flat rotating frame, and the flat rotating motor is fixedly mounted on the upper lifting frame. The sliding adjustment frame is slidably mounted on the flat rotating frame. The side-fixed rack is fixedly mounted on one side of the sliding adjustment frame. The drive gear meshes with the side-fixed rack and is rotatably mounted on the upper lifting frame. The output shaft of the drive motor is connected to the drive gear, and the drive motor is fixedly mounted on one side of the upper lifting frame.

[0010] The assembly and adjustment components further include a lead screw side sliding mechanism and a lead screw lifting mechanism. The lead screw side sliding mechanism is connected to the side sliding frame and is used to drive the side sliding frame; the lead screw lifting mechanism is connected to the loading plate and is used to drive the loading plate.

[0011] The scanning adjustment component further includes a movable frame, a lead screw moving mechanism, a lifting frame, a lifting cylinder, a transfer frame, and a rotary drive mechanism. The movable frame is slidably mounted on the sliding adjustment frame; the lead screw moving mechanism is connected to the movable frame and is used to drive the movable frame to move; the lifting frame is slidably mounted on the movable frame; the output end of the lifting cylinder is connected to the lifting frame, and the lifting cylinder is fixedly mounted on the movable frame; the laser scanning mechanism is mounted on the transfer frame, and the transfer frame is rotatably mounted on the lifting frame; the rotary drive mechanism is connected to the transfer frame and is used to drive the transfer frame to rotate.

[0012] The scanning and detection assembly further includes an environmental detection mechanism, an environmental purifier, a side scanning frame, and a scanning frame lateral movement mechanism. The environmental detection mechanism is installed on the top of the main detection box; the environmental purifier is installed on one side of the main detection box; the side scanning frame is slidably installed on the transfer frame; and the scanning frame lateral movement mechanism is connected to the side scanning frame and is used to drive the side scanning frame to move.

[0013] One laser inspection method for inspecting the shape of valve workpieces, using the aforementioned laser inspection equipment for inspecting the shape of valve workpieces, includes the following steps. Valve workpieces that require shape scanning inspection are transported via a conveyor. When the valve workpiece enters the main inspection box, the lateral dimensions of the workpiece are estimated by two sets of imported sensing laser heads and laser receivers. When the two sets of imported sensing laser heads and the laser receiver are detecting the lateral dimensions of the valve workpiece, the two sliding frames, under the action of the sensing height adjustment mechanism, drive the two sets of imported sensing laser heads and the laser receiver to adjust the sensing range accordingly. The lateral height and length of the valve workpiece are detected and estimated by the independent sliding of the imported sensing laser head, the laser receiver, and the two sliding frames. Once the imported sensing laser head and the laser receiver detect that the valve workpiece has completely entered the detection main box, the conveyor stops working and the lateral width of the valve workpiece is detected and estimated by the side measurement component. Finally, the scanning component performs laser shape scanning inspection on the valve workpiece transmitted to the detection main box within a corresponding range based on the estimated size data of the valve workpiece.

[0014] This invention discloses a laser inspection device and method for inspecting the shape of valve workpieces. In actual operation, valve workpieces requiring shape scanning inspection are transported via a conveyor. When the valve workpiece enters the main inspection box, the lateral dimensions of the workpiece are estimated by two sets of imported laser sensing heads and laser receivers. While inspecting the lateral dimensions of the valve workpiece, two sliding frames, under the action of a sensing height adjustment mechanism, drive the two sets of imported laser sensing heads and laser receivers to adjust the sensing range accordingly. The imported laser sensing heads and laser receivers, in conjunction with the two sliding frames, achieve this. The independent sliding mechanism detects and estimates the lateral height and length of the valve workpiece. When the inlet sensing laser head and the laser receiver detect that the valve workpiece has completely entered the detection main box, the conveyor stops working. The lateral measurement component detects and estimates the lateral width of the valve workpiece. Finally, the scanning component performs laser shape scanning detection on the valve workpiece transmitted into the detection main box according to the estimated size data of the valve workpiece. This enables the component to sense and estimate the size of the valve workpiece to be detected in advance, and then adjust the laser detection position and range accordingly based on the sensing and estimation results, resulting in higher overall scanning efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0016] Figure 1 This is a schematic diagram of the overall structure of the laser inspection equipment for valve workpiece shape inspection according to the present invention.

[0017] Figure 2 This is a schematic diagram of the installation structure of the upper lifting frame of the present invention.

[0018] Figure 3 This is a schematic diagram of the structure of the detection main box cut open from the side according to the present invention.

[0019] Figure 4 This is a schematic diagram of the front section of the detection main box of the present invention.

[0020] Figure 5 This is a cross-sectional structural diagram of the lifting frame of the present invention.

[0021] Figure 6 This is the invention Figure 5 Enlarged view of point A.

[0022] Figure 7 This is a cross-sectional structural diagram of the bottom of the sliding adjustment bracket of the present invention.

[0023] Figure 8 This is the invention Figure 7 Enlarged view of point B.

[0024] Figure 9 This is a cross-sectional structural diagram of the top of the loading box frame of the present invention.

[0025] Figure 10 This is a schematic diagram of the side slide frame structure of the present invention cut out from the side.

[0026] Figure 11 This is a flowchart of the laser inspection method for valve workpiece shape inspection according to the present invention.

[0027] In the diagram: 101-Conveyor table, 102-Detection main box, 103-Sliding rack, 104-Imported sensing laser head, 105-Laser receiver, 106-Sensing height adjustment mechanism, 201-Lifting frame, 202-Screw height adjustment mechanism, 203-Laser ranging mechanism, 301-Transverse frame, 302-Screw transverse mechanism, 303-Laser scanning mechanism, 401-Loading box frame, 402-Side sliding frame, 403-Loading plate, 404-Screw side sliding mechanism, 405-Screw lifting mechanism Mechanism, 501-Cut-off box frame, 502-Reflector, 601-Horizontal rotating frame, 602-Horizontal rotating motor, 603-Sliding mounting frame, 604-Side-fixed rack, 605-Drive gear, 606-Drive motor, 607-Moving frame, 608-Screw moving mechanism, 609-Lifting mounting frame, 610-Lifting cylinder, 611-Transfer mounting frame, 612-Rotating drive mechanism, 701-Environmental monitoring mechanism, 702-Environmental purifier, 703-Side sweeping frame, 704-Sweeping frame side-shifting mechanism. Detailed Implementation

[0028] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0029] In the description of this invention, it should be understood that "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] Please see Figures 1 to 10 This invention provides a laser inspection device and method for inspecting the shape of valve workpieces: It includes a conveyor 101, an inspection main box 102, and a scanning inspection component. The scanning inspection component includes a sliding frame 103, an inlet sensing laser head 104, a laser receiver 105, a sensing height adjustment mechanism 106, a side measurement component, and a scanning component. The side measurement component includes an upper lifting frame 201, a lead screw height adjustment mechanism 202, a laser ranging mechanism 203, an adjustment component, and a truncated reflection component. The scanning component includes a transverse frame 301, a lead screw height adjustment mechanism 202, a laser ranging mechanism 203, an adjustment component, and a truncated reflection component. The assembly includes a rod lateral movement mechanism 302, a laser scanning mechanism 303, and a scanning adjustment component. The adjustment component includes a loading box frame 401, a side slide frame 402, and a loading plate 403. The truncated reflective component includes a truncated box frame 501 and a reflective plate 502. The scanning adjustment component includes a horizontal rotating frame 601, a horizontal rotating motor 602, a sliding adjustment frame 603, a side-fixed rack 604, a drive gear 605, and a drive motor 606. The adjustment component also includes a lead screw side-sliding mechanism 404 and a lead screw lifting mechanism 405. The scanning adjustment component further includes... The system includes a moving frame 607, a lead screw moving mechanism 608, a lifting mounting frame 609, a lifting cylinder 610, a transfer frame 611, and a rotating drive mechanism 612. This solution addresses the problem that existing laser inspection equipment suffers from several drawbacks when scanning valve workpieces. Firstly, the distance between the laser emission point and the workpiece significantly affects the final inspection result. If the distance is too close, the laser spot is easily distorted, the coverage area is limited, and minor defects on the workpiece surface cause more significant interference with the laser, reducing inspection accuracy and potentially damaging the workpiece due to concentrated energy. Secondly, if the distance is too far, laser diffusion during propagation leads to a larger spot size and energy attenuation, weakening the ability to distinguish workpiece details and making it difficult to capture minor defects. Furthermore, the system is more susceptible to environmental factors, making the signal easily interfered with, resulting in unstable inspection results and increased errors, thus affecting the reliability and accuracy of the inspection. Therefore, operators often need to adjust the placement of the workpiece and the shooting point in advance according to the inspection range of the laser inspection equipment, making it very troublesome when scanning valve workpieces of different types and sizes, resulting in low overall inspection efficiency.

[0031] Furthermore, the main detection box 102 is mounted on the conveyor table 101, and two sliding frames 103 are slidably installed at the feed port of the main detection box 102. Each sliding frame 103 has an inlet sensing laser head 104 and a laser receiver 105 installed on both sides. The laser receiver 105 senses and receives the laser emitted by the inlet sensing laser head 104. Two sensing height adjustment mechanisms 106 are connected to the two sliding frames 103 respectively and are used to drive the corresponding sliding frames 103.

[0032] Specifically, corresponding light-emitting plates are embedded in both side walls of the main detection box 102 to provide a suitable laser scanning environment within the main detection box 102, thereby further improving the efficiency and quality of the shape laser scanning.

[0033] The sensing height adjustment mechanism 106 mainly consists of a lead screw and a motor. The motor drives the lead screw to rotate, and the rotation of the lead screw drives the sliding frame 103 to move up and down at the feed port of the detection main box 102. The two sets of sensing height adjustment mechanisms 106 can independently drive the two sliding frames 103. The sliding frame 103 is a gantry structure. The sliding frame 103 is provided with the corresponding inlet sensing laser head 104 and the laser receiver 105 on both sides. The laser receiver 105 can receive the laser emitted by the inlet sensing laser head 104. Then, according to the laser receiving frequency of the laser receiver 105 and the up and down movement of the sliding frame 103, the lateral dimension of the valve workpiece can be detected and judged.

[0034] By employing two sets of imported sensing laser heads 104 and laser receivers 105, dynamic multi-segment dimension detection can be performed on the valve workpiece fed into the conveyor 101, making the dimension detection and estimation of the valve workpiece more accurate and facilitating subsequent laser scanning of the corresponding valve workpiece shape.

[0035] In actual operation, valve workpieces requiring shape scanning inspection are transported via the conveyor 101. When the valve workpiece enters the inspection main box 102, the lateral dimensions of the workpiece are estimated by two sets of imported sensing laser heads 104 and laser receivers 105. While the two sets of imported sensing laser heads 104 and laser receivers 105 are detecting the lateral dimensions of the valve workpiece, the two sliding frames 103, under the action of the sensing height adjustment mechanism 106, drive the two sets of imported sensing laser heads 104 and laser receivers 105 to adjust the sensing range accordingly. The imported sensing laser heads 104 and laser receivers 105, in conjunction with the two sliding frames 103, effectively adjust the sensing range. The independent sliding mechanism detects and estimates the lateral height and length of the valve workpiece. When the inlet sensing laser head 104 and the laser receiver 105 detect that the valve workpiece has completely entered the detection main box 102, the conveyor 101 stops working. The lateral measurement component detects and estimates the lateral width of the valve workpiece. Finally, the scanning component performs laser shape scanning detection on the valve workpiece transmitted to the detection main box 102 according to the estimated size data of the valve workpiece. This realizes that the size of the valve workpiece to be detected can be sensed and estimated in advance by the provided components, and then the laser detection position and range can be adjusted accordingly based on the sensing and estimation results, so as to improve the overall scanning efficiency.

[0036] Furthermore, the upper lifting frame 201 is slidably mounted on one side of the detection main box 102; the lead screw height adjustment mechanism 202 is connected to the upper lifting frame 201 and is used to drive the upper lifting frame 201; the laser ranging mechanism 203 is connected to the upper lifting frame 201 through the mounting and adjusting component; the mounting and adjusting component is connected to the upper lifting frame 201 and is used to adjust the sensing range of the laser ranging mechanism 203; the truncated reflection component is connected to the upper lifting frame 201 and is used to cooperate with the laser ranging mechanism 203 to estimate and judge the lateral dimensions of the workpiece that needs to be scanned and detected.

[0037] Furthermore, the loading box frame 401 is fixedly installed on one side of the upper lifting frame 201, and the loading box frame 401 is located at the discharge port of the detection main box 102; the side slide frame 402 is slidably installed inside the loading box frame 401; the laser ranging mechanism 203 is installed on the loading plate 403, and the loading plate 403 is slidably installed on the side slide frame 402.

[0038] Furthermore, the cut-off box frame 501 is fixedly installed on the side of the upper lifting frame 201 away from the loading box frame 401, and the cut-off box frame 501 is located at the feeding port of the detection main box 102; the reflector plate 502 is fixedly installed on the side of the cut-off box frame 501 close to the laser scanning mechanism 303.

[0039] Furthermore, the lead screw side sliding mechanism 404 is connected to the side sliding frame 402 and is used to drive the side sliding frame 402; the lead screw lifting mechanism 405 is connected to the loading plate 403 and is used to drive the loading plate 403.

[0040] In this embodiment, the loading box frame 401 and the cutting box frame 501 are fixed on both sides of the upper lifting frame 201. The loading box frame 401 and the cutting box frame 501 are respectively engaged with the discharge port and the inlet of the detection main box 102. The upper lifting frame 201 is driven by the lead screw height adjustment mechanism 202. The lead screw height adjustment mechanism 202 has the same structural principle as the sensing height adjustment mechanism 106. The up and down movement of the upper lifting frame 201 can drive the loading box frame 401 and the cutting box frame 501 to slide up and down accordingly, so that the inlet and outlet of the detection main box 102 can be blocked by the downward movement of the loading box frame 401 and the cutting box frame 501.

[0041] The side slide 402 is slidably disposed inside the loading box frame 401, and the loading plate 403 is slidably mounted on the side slide 402. The side slide 402 and the loading plate 403 are driven by the lead screw side slide mechanism 404 and the lead screw lifting mechanism 405, respectively. The lead screw side slide mechanism 404 and the lead screw lifting mechanism 405 have the same functional structure as the sensing height adjustment mechanism 106. The laser ranging mechanism 203 is fixedly disposed on the loading plate 403. The laser ranging mechanism 203 used in this solution integrates the laser emitting mechanism and the laser receiving mechanism into one unit. The laser emitter scans the target object at a certain angle, and the receiver receives the reflected laser signal. By analyzing the time and intensity information of the reflected signal, the corresponding size data of the target object can be established.

[0042] Once the valve workpiece requiring shape scanning inspection has fully entered the inspection main box 102, the loading box frame 401 and the cutting box frame 501 will block the outlet and inlet of the inspection main box 102 under the action of the upper lifting frame 201. At this time, the two sets of imported sensing laser heads 104 and the laser receiver 105 have completed the side dimension detection and estimation of the valve workpiece. After the outlet and inlet of the inspection main box 102 are blocked, the laser ranging mechanism 203 can detect and estimate the side contour of the valve workpiece under the action of the side slide frame 402 and the loading plate 403.

[0043] When the laser ranging mechanism 203 performs detection and estimation on the side contour of the valve workpiece, the detection main box 102 is sealed and shielded in advance by the loading box frame 401 and the cutting box frame 501, so that the detection environment inside the detection main box 102 is not affected by the external ambient light, making the laser ranging mechanism 203 more accurate and convenient when performing scanning detection. At the same time, in conjunction with the reflector 502 set on the cutting box frame 501, the laser emitted by the laser ranging mechanism 203 can be quickly received and judged after passing through the top of the valve workpiece.

[0044] Furthermore, the transverse frame 301 is slidably installed inside the detection main box 102; the lead screw transverse mechanism 302 is connected to the transverse frame 301 and is used to drive the transverse frame 301; the laser scanning mechanism 303 is connected to the transverse frame 301 through the scanning adjustment component; the scanning adjustment component is connected to the transverse frame 301 and is used to adjust the scanning range of the laser scanning mechanism 303.

[0045] Furthermore, the flat rotating frame 601 is rotatably mounted on the bottom of the upper lifting frame 201; the output shaft of the flat rotating motor 602 is connected to the flat rotating frame 601, and the flat rotating motor 602 is fixedly mounted on the upper lifting frame 201; the sliding adjustment frame 603 is slidably mounted on the flat rotating frame 601; the side-fixed rack 604 is fixedly mounted on one side of the sliding adjustment frame 603; the driving gear 605 meshes with the side-fixed rack 604 and is rotatably mounted on the upper lifting frame 201; the output shaft of the driving motor 606 is connected to the driving gear 605, and the driving motor 606 is fixedly mounted on one side of the upper lifting frame 201.

[0046] Furthermore, the movable frame 607 is slidably mounted on the sliding mounting frame 603; the lead screw moving mechanism 608 is connected to the movable frame 607 and is used to drive the movable frame 607 to move; the lifting mounting frame 609 is slidably mounted on the movable frame 607; the output end of the lifting cylinder 610 is connected to the lifting mounting frame 609, and the lifting cylinder 610 is fixedly mounted on the movable frame 607; the laser scanning mechanism 303 is mounted on the transfer frame 611, and the transfer frame 611 is rotatably mounted on the lifting mounting frame 609; the rotary drive mechanism 612 is connected to the transfer frame 611 and is used to drive the transfer frame 611 to rotate.

[0047] In this embodiment, the laser scanning mechanism 303 is the main device for performing laser external scanning on the valve workpiece. The laser scanning mechanism 303 is mounted on the transfer frame 611, which is driven by the rotary drive mechanism 612. The rotary drive mechanism 612 mainly consists of a gear set and a motor. The scanning angle of the laser scanning mechanism 303 can be adjusted by rotating the transfer frame 611.

[0048] When the laser scanning mechanism 303 scans and detects the valve workpiece inside the detection main box 102, it can drive the lifting frame 609 to move up and down through the lifting cylinder 610, thereby adjusting the scanning height of the laser scanning mechanism 303. At the same time, it can also drive the moving frame 607 to slide on the sliding mounting frame 603 through the lead screw moving mechanism 608. The driving principle of the lead screw moving mechanism 608 is the same as that of the sensing height adjustment mechanism 106. Both drive the corresponding frame by driving the corresponding lead screw to rotate. The structure for driving the lead screw to rotate is a gear set drive structure, so as to further adjust the scanning position of the laser scanning mechanism 303.

[0049] The sliding mounting bracket 603 can also move on the horizontal rotating bracket 601 via the drive motor 606, the drive gear 605, and the side-fixed rack 604, thereby allowing for more flexible adjustment of the position of the laser scanning mechanism 303. The horizontal rotating bracket 601 rotates on the upper lifting frame 201 via the horizontal rotating motor 602, so that the adjustment angle of the sliding mounting bracket 603 can be adjusted. Finally, the horizontal moving bracket 301 can be driven to slide within the detection main box 102 via the lead screw horizontal moving mechanism 302, thereby achieving multi-range position adjustment of the laser scanning mechanism 303.

[0050] When adjusting the scanning position and scanning angle of the laser scanning mechanism 303, the scanning adjustment path and scanning range can be set and exported in advance based on the estimated sensing valve workpiece size data. Then, the laser scanning mechanism 303 is driven according to the generated scanning adjustment path in conjunction with the above-mentioned scanning position adjustment structure to achieve adaptive scanning detection of the corresponding valve workpiece.

[0051] Preferably, the scanning and detection assembly provided by the present invention further includes an environmental detection mechanism 701, an environmental purifier 702, a side scanning frame 703, and a scanning frame side-moving mechanism 704.

[0052] Furthermore, the environmental testing mechanism 701 is installed on the top of the main testing box 102; the environmental purifier 702 is installed on one side of the main testing box 102; the side sweeping frame 703 is slidably installed on the transfer frame 611; the sweeping frame side-moving mechanism 704 is connected to the side sweeping frame 703 and is used to drive the side sweeping frame 703 to move.

[0053] In this embodiment, the detection probe of the environmental detection mechanism 701 is located inside the main detection box 102. The environmental purifier 702 is equipped with a corresponding inlet channel. When the main detection box 102 is under closed detection, the environmental detection mechanism 701 can continuously detect and judge the detection environment inside the main detection box 102. When it is detected that the detection environment inside the main detection box 102 will affect the scanning quality of laser scanning, the environmental purifier 702 can process the detection environment inside the main detection box 102 to make the laser shape scanning detection more effective.

[0054] The side-sweeping frame 703 is disposed on the top of the transfer frame 611, and a corresponding soft wiping pad is disposed on the bottom of the side-sweeping frame 703. The frame body of the side-sweeping frame 703 and the top sliding groove of the transfer frame 611 is driven by the sweeping frame lateral shifting mechanism 704. The sweeping frame lateral shifting mechanism 704 has the same functional structure as the sensing height adjustment mechanism 106. When it is necessary to wipe and clean the laser emitting surface of the laser scanning mechanism 303, the laser scanning mechanism 303 needs to be flipped by the transfer frame 611 so that the laser emitting surface of the laser scanning mechanism 303 can cooperate with the soft wiping pad at the bottom of the side-sweeping frame 703. Then, the laser emitting surface of the laser scanning mechanism 303 is wiped and cleaned by the lateral movement of the side-sweeping frame 703.

[0055] Please see Figure 11 A laser inspection method for inspecting the shape of valve workpieces, wherein the laser inspection equipment for inspecting the shape of valve workpieces includes the following steps. S1: Valve workpieces that need to be scanned and inspected are transferred through conveyor 101. When the valve workpiece enters the main inspection box 102, the lateral dimensions of the workpiece are estimated by two sets of imported sensing laser heads 104 and laser receivers 105. S2: When the two sets of imported sensing laser heads 104 and the laser receiver 105 are detecting the lateral dimensions of the valve workpiece, the two sliding brackets 103, under the action of the sensing height adjustment mechanism 106, drive the two sets of imported sensing laser heads 104 and the laser receiver 105 to adjust the sensing range accordingly. S3: The lateral height and length of the valve workpiece are detected and estimated by the independent sliding of the imported sensing laser head 104, the laser receiver 105 and the two sliding brackets 103. S4: When the imported sensing laser head 104 and the laser receiver 105 sense that the valve workpiece has completely entered the detection main box 102, the conveyor 101 stops working and the lateral width of the valve workpiece is detected and estimated by the side measurement component. S5: Finally, the scanning component performs laser shape scanning detection on the valve workpiece transmitted to the detection main box 102 within a corresponding range based on the estimated size data of the valve workpiece.

[0056] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that implementing all or part of the above embodiments and making equivalent changes in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A laser inspection device for inspecting the shape of valve workpieces, comprising a conveyor table and an inspection main box, wherein the inspection main box is mounted on the conveyor table, characterized in that, It also includes a scanning and detection component; The scanning and detection assembly includes a sliding frame, an inlet sensing laser head, a laser receiver, a sensing height adjustment mechanism, a side measurement component, and a scanning component. Two sliding frames are slidably mounted on the feed port of the main detection box. The inlet sensing laser head and the laser receiver are respectively installed on both sides of each sliding frame. The laser receiver senses and receives the laser emitted by the inlet sensing laser head. The two sensing height adjustment mechanisms are respectively connected to the two sliding frames and are used to drive the corresponding sliding frames.

2. The laser inspection equipment for valve workpiece shape inspection as described in claim 1, characterized in that, The lateral measurement component includes an upper lifting frame, a lead screw height adjustment mechanism, a laser ranging mechanism, an adjustment assembly, and a cutoff reflection component. The upper lifting frame is slidably mounted on one side of the main detection box. The lead screw height adjustment mechanism is connected to the upper lifting frame and is used to drive the upper lifting frame. The laser ranging mechanism is connected to the upper lifting frame through the adjustment assembly. The adjustment assembly is connected to the upper lifting frame and is used to adjust the sensing range of the laser ranging mechanism. The cutoff reflection component is connected to the upper lifting frame and is used to cooperate with the laser ranging mechanism to estimate and judge the lateral dimensions of the workpiece to be scanned and detected.

3. The laser inspection equipment for valve workpiece shape inspection as described in claim 1, characterized in that, The scanning component includes a transverse frame, a lead screw transverse mechanism, a laser scanning mechanism, and a scanning adjustment component. The transverse frame is slidably installed inside the main detection box. The lead screw transverse mechanism is connected to the transverse frame and is used to drive the transverse frame. The laser scanning mechanism is connected to the transverse frame through the scanning adjustment component. The scanning adjustment component is connected to the transverse frame and is used to adjust the scanning range of the laser scanning mechanism.

4. The laser inspection equipment for valve workpiece shape inspection as described in claim 2, characterized in that, The loading and adjusting components include a loading box frame, a side slide frame, and a loading plate. The loading box frame is fixedly installed on one side of the upper lifting frame and is located at the discharge port of the main detection box. The side slide frame is slidably installed inside the loading box frame. The laser ranging mechanism is installed on the loading plate, and the loading plate is slidably installed on the side slide frame.

5. The laser inspection equipment for valve workpiece shape inspection as described in claim 2, characterized in that, The cut-off reflective component includes a cut-off box frame and a reflective plate. The cut-off box frame is fixedly installed on the side of the upper lifting frame away from the loading box frame, and the cut-off box frame is located at the feeding port of the main detection box. The reflective plate is fixedly installed on the side of the cut-off box frame close to the laser scanning mechanism.

6. The laser inspection equipment for valve workpiece shape inspection as described in claim 3, characterized in that, The scanning adjustment component includes a flat rotating frame, a flat rotating motor, a sliding adjustment frame, a side-fixed rack, a drive gear, and a drive motor. The flat rotating frame is rotatably mounted on the bottom of the upper lifting frame. The output shaft of the flat rotating motor is connected to the flat rotating frame, and the flat rotating motor is fixedly mounted on the upper lifting frame. The sliding adjustment frame is slidably mounted on the flat rotating frame. The side-fixed rack is fixedly mounted on one side of the sliding adjustment frame. The drive gear meshes with the side-fixed rack and is rotatably mounted on the upper lifting frame. The output shaft of the drive motor is connected to the drive gear, and the drive motor is fixedly mounted on one side of the upper lifting frame.

7. The laser inspection equipment for valve workpiece shape inspection as described in claim 4, characterized in that, The assembly and adjustment components also include a lead screw side sliding mechanism and a lead screw lifting mechanism. The lead screw side sliding mechanism is connected to the side sliding frame and is used to drive the side sliding frame; the lead screw lifting mechanism is connected to the loading plate and is used to drive the loading plate.

8. The laser inspection equipment for valve workpiece shape inspection as described in claim 6, characterized in that, The scanning adjustment component further includes a movable frame, a lead screw moving mechanism, a lifting frame, a lifting cylinder, a transfer frame, and a rotary drive mechanism. The movable frame is slidably mounted on the sliding adjustment frame; the lead screw moving mechanism is connected to the movable frame and is used to drive the movable frame to move; the lifting frame is slidably mounted on the movable frame; the output end of the lifting cylinder is connected to the lifting frame, and the lifting cylinder is fixedly mounted on the movable frame; the laser scanning mechanism is mounted on the transfer frame, and the transfer frame is rotatably mounted on the lifting frame; the rotary drive mechanism is connected to the transfer frame and is used to drive the transfer frame to rotate.

9. The laser inspection equipment for valve workpiece shape inspection as described in claim 8, characterized in that, The scanning and detection assembly also includes an environmental detection mechanism, an environmental purifier, a side scanning frame, and a scanning frame lateral movement mechanism. The environmental detection mechanism is installed on the top of the main detection box; the environmental purifier is installed on one side of the main detection box; the side scanning frame is slidably installed on the transfer frame; and the scanning frame lateral movement mechanism is connected to the side scanning frame and is used to drive the side scanning frame to move.

10. A laser inspection method for inspecting the shape of valve workpieces, employing the laser inspection equipment for inspecting the shape of valve workpieces as described in claim 1, characterized in that, Includes the following steps, Valve workpieces that require shape scanning inspection are transported via a conveyor. When the valve workpiece enters the main inspection box, the lateral dimensions of the workpiece are estimated by two sets of imported sensing laser heads and laser receivers. When the two sets of imported sensing laser heads and the laser receiver are detecting the lateral dimensions of the valve workpiece, the two sliding frames, under the action of the sensing height adjustment mechanism, drive the two sets of imported sensing laser heads and the laser receiver to adjust the sensing range accordingly. The lateral height and length of the valve workpiece are detected and estimated by the independent sliding of the imported sensing laser head, the laser receiver, and the two sliding frames. Once the imported sensing laser head and the laser receiver detect that the valve workpiece has completely entered the detection main box, the conveyor stops working and the lateral width of the valve workpiece is detected and estimated by the side measurement component. Finally, the scanning component performs laser shape scanning inspection on the valve workpiece transmitted to the detection main box within a corresponding range based on the estimated size data of the valve workpiece.

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