Visual inspection device for macroscopic flatness of titanium alloy

Abstract

The invention discloses a titanium alloy macroscopic flatness visual inspection device which comprises a supporting base, two supporting side plates are fixedly connected to the supporting base, a central supporting rod is fixedly connected to the interiors of the supporting side plates, and driving structures are mounted outside a moving seat and a second mounting plate. In the detection process, the detection camera can be continuously adjusted to carry out flatness visual detection on the exterior of the part, and the position of the light irradiated on the part can be continuously adjusted at different angles, so that the light irradiated on the surface of the part at different angles generates different states to assist the detection camera to carry out visual detection, and the detection efficiency is improved. Meanwhile, lamplight of different colors can be generated when auxiliary lamplight is generated, different part features are generated at different angles, the visual detection work of the detection camera on the part is further assisted, and the visual detection effect and speed are improved.

Description

Technical Field

[0001] This invention relates to the field of titanium alloy testing technology, and more specifically, to a visual inspection device for the macroscopic flatness of titanium alloys. Background Technology

[0002] Titanium alloys, due to their high strength, corrosion resistance, and lightweight properties, are widely used in aerospace, medical devices, and precision manufacturing. However, during processing, they are susceptible to thermal stress, cutting vibration, and other factors, leading to macroscopic flatness defects (such as wavy lines, warping, and localized depressions) on the surface of plates, tubes, or parts. These defects not only affect the product's appearance but can also cause quality problems such as stress concentration and seal failure. Therefore, high-precision inspection of the macroscopic flatness of titanium alloy workpieces is a crucial step in ensuring their performance reliability.

[0003] Traditional testing methods, such as dial indicators and coordinate measuring machines, require direct contact with the workpiece surface, which may scratch the titanium alloy surface (especially damaging the passivation layer of medical titanium alloys). Furthermore, the testing efficiency is low and it is difficult to cover large areas or complex curved surfaces.

[0004] The introduction of high-resolution cameras (e.g., 5 megapixels or higher) combined with sub-pixel algorithms can achieve micron-level flatness detection and is easily integrated with robots and automated production lines to improve detection efficiency. However, during the inspection of parts, the camera's shooting conditions are closely related to the shooting light. Different angles of light can display different inspection images, and different angles of light can produce different light patterns and different inspection contours. However, most existing inspection devices require manual adjustment of the inspection light. In continuous production processes, manual adjustment of light to assist visual inspection is prone to errors or inadequate light control. Therefore, a macroscopic flatness visual inspection device for titanium alloys is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a visual inspection device for the macroscopic flatness of titanium alloys, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a visual inspection device for the macroscopic flatness of titanium alloy, comprising a support base, two support side plates fixedly connected to the support base, a central support rod fixedly connected inside the support side plates, a placement seat fixedly connected outside the central support rod, a rotating ring rotatably connected outside the central support rod, a rotating structure mounted outside the rotating ring, a limiting groove formed outside the rotating ring, a movable seat and a second mounting plate slidably connected inside the limiting groove, a driving structure mounted outside both the movable seat and the second mounting plate, a detection camera mounted outside the movable seat via a fine-tuning structure, and a supplementary lighting structure mounted outside the second mounting plate via a fine-tuning structure. The supplementary lighting structure includes an airbag seat, which is mounted on a fine-tuning structure. Multiple multi-color LED beads are mounted on the outside of the airbag seat. These multi-color LED beads are used to emit different colors of light to assist the detection camera in capturing and detecting images.

[0007] Preferably, a miniature air pump is installed on the outside of the second mounting plate, and the air outlet of the miniature air pump is connected to an air delivery hose, with the end of the air delivery hose away from the miniature air pump connected to the airbag seat.

[0008] Preferably, a multi-way electrically controlled valve is installed inside the airbag seat, and another air outlet of the air supply hose is connected to the air inlet of the multi-way electrically controlled valve. At least four air outlets of the multi-way electrically controlled valve are connected to a first delivery pipe. At least four internal push airbags are fixedly connected inside the airbag seat, and the air outlet of the first delivery pipe is connected to the internal push airbag.

[0009] Preferably, multiple external expansion bladders are fixedly connected to the side of the airbag seat away from the micro air pump. Other air outlets of the multi-way solenoid valve are connected to a second delivery pipe. The end of the second delivery pipe away from the multi-way solenoid valve passes through the outer wall of the airbag seat and is connected to the external expansion bladders. The multi-color LED beads are installed on the outside of the external expansion bladders. The power-carrying wires of the multi-color LED beads are located inside the airbag seat. A contact conductive ring is installed on the outside of the rotating ring. The power-carrying wires are connected to the power-carrying contacts and contact the contact conductive ring to achieve power supply.

[0010] Preferably, a plurality of recessed electromagnet plates are fixedly connected to one side of the inner wall of the external expansion bladder, and a protruding electromagnet plate is fixedly connected to the other side of the inner wall of the external expansion bladder.

[0011] Preferably, the fine-tuning structure includes a movable slide groove, which is located on the side of the movable seat and the second mounting plate away from the rotating ring. A first mounting plate is slidably connected inside the movable slide groove. The detection camera and the airbag seat are mounted on the outside of the first mounting plate. A screw is rotatably connected to the outside of the movable seat. A threaded hole is provided on the outside of the first mounting plate. The screw is threadedly connected to the threaded hole. Two guide rods are fixedly connected to the outside of the movable seat. The guide rods penetrate the outer wall of the first mounting plate.

[0012] Preferably, the drive structure includes a toothed plate connected to the outer wall of the rotating ring, a micro motor mounted on the outside of the movable seat, a gear fixedly connected to the output shaft of the micro motor, and a through slot on the outside of the movable seat through which the gear meshes with the toothed plate.

[0013] Preferably, the rotating structure includes a sleeve, which is rotatably connected to the inside of one of the supporting side plates and to the outside of the central support rod. One end of the sleeve passes through the outer wall of one of the supporting side plates and is fixedly connected to a worm gear. A drive motor is fixedly connected to the outside of the supporting side plate, and a worm is fixedly connected to the output shaft of the drive motor. The worm meshes with the worm gear.

[0014] Preferably, a soft bladder is fixedly connected inside the placement base, the soft bladder is filled with electrorheological fluid, a battery module is inserted into the bottom wall of the placement base, and a conductive wire is connected to the outside of the battery module, with the energized end of the conductive wire located inside the electrorheological fluid.

[0015] Preferably, a pressure sensor is installed inside the airbag seat, the multiple internal pushing airbags, and the multiple external expansion airbags. The expansion displacement of the airbag seat causes the multi-color LED beads to shift, and the calculation formula is as follows: ,in, To monitor air pressure in real time, Initial air pressure, , is the proportionality coefficient. The change in airbag seat volume is converted into a linear displacement coefficient; The pressure sensor located inside the internal airbag is used to measure the tilt caused by the multi-color LED beads. The calculation formula is as follows: ,in, and For the maximum and minimum pressures in multiple internal thrust airbags, For average pressure, The angle coefficient is calibrated using the airbag spacing and lever principle. The tilt angle; The pressure sensor located inside the external expansion bladder is used to determine the displacement state produced after the external expansion bladder expands. The calculation formula is as follows: , The image represents the cystic state, with 1 indicating expansion and 0 indicating non-expansion. This is the activation threshold.

[0016] The degree of expansion of each external cyst.

[0017] Compared with the prior art, the beneficial effects of the present invention are: In this invention, a position-adjustable detection camera and multi-color LEDs enable continuous imaging and inspection of different positions on different parts during continuous production. During inspection, the camera can not only continuously adjust to visually inspect the flatness of the parts' exterior, but also continuously adjust the position of the light illuminating the parts at different angles, creating different states of light on the part surface at different angles. This assists the detection camera in visual inspection. Furthermore, auxiliary lighting can produce different colors of light, revealing different part features at different angles, further assisting the detection camera in visual inspection and improving the effectiveness and speed of visual inspection. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the rotational state structure of the rotating ring in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the worm gear and worm in an embodiment of the present invention; Figure 4 This is a cross-sectional view of the airbag seat in an embodiment of the present invention; Figure 5 This is a side view of the movable seat in an embodiment of the present invention; Figure 6 This is a schematic diagram of the expanded state structure of the external expansion bladder in an embodiment of the present invention; Figure 7 This is a schematic cross-sectional view of a single external expansion bladder in an embodiment of the present invention; Figure 8 This is an embodiment of the present invention. Figure 3 A magnified structural diagram of area A in the diagram; Figure 9 This is a schematic diagram of the soft capsule and electrorheological fluid in an embodiment of the present invention.

[0019] In the diagram: 100, Support base; 101, Support side plate; 102, Central support rod; 103, Placement seat; 104, Rotating ring; 105, Limiting slide groove; 106, Moving seat; 107, First mounting plate; 108, Detection camera; 109, Second mounting plate; 110, Miniature air pump; 111, Airbag seat; 200, Internal pushing airbag; 201, Multi-way electrically controlled valve; 202, First delivery pipe; 300, Second delivery pipe; 301, External... Inflatable bladder; 302, multi-color LED bead; 400, recessed electromagnet sheet; 401, protruding electromagnet sheet; 500, screw; 501, guide rod; 600, micro motor; 601, gear plate; 602, gear; 603, through slot; 604, movable slide rail; 700, sleeve; 701, drive motor; 702, worm gear; 703, worm wheel; 800, soft bladder; 801, electrorheological fluid; 802, battery module; 900, pressure sensor. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1, such as Figure 1 As shown, this application discloses a visual inspection device for the macroscopic flatness of titanium alloy, including a support base 100. Two support side plates 101 are fixedly connected to the support base 100. A central support rod 102 is fixedly connected inside the support side plate 101. A placement seat 103 is fixedly connected outside the central support rod 102. A rotating ring 104 is rotatably connected outside the central support rod 102. A rotating structure is installed outside the rotating ring 104. A limiting groove 105 is formed outside the rotating ring 104. A movable seat 106 and a second mounting plate 109 are slidably connected inside the limiting groove 105. A driving structure is installed outside both the movable seat 106 and the second mounting plate 109. A detection camera 108 is installed outside the movable seat 106 through a fine-tuning structure. A supplementary lighting structure is installed outside the second mounting plate 109 through a fine-tuning structure. The supplementary lighting structure includes an airbag seat 111, which is mounted on a fine-tuning structure. Multiple multi-color LED beads 302 are mounted on the outside of the airbag seat 111. The multiple multi-color LED beads 302 are used to emit different colored lights to assist the detection camera 108 in shooting and detection.

[0022] Specifically, during use, the staff places the titanium alloy part to be inspected onto the placement seat 103. After placement, the rotating structure is activated to rotate the rotating ring 104. When the rotating ring 104 rotates, it drives the moving seat 106 and the inspection camera 108 to rotate as a whole. With the inspection camera 108 rotating, the titanium alloy part on the placement seat 103 can be photographed from different angles. At the same time, when it is necessary to photograph and inspect the side of the titanium alloy part, the position of the moving seat 106 and the second mounting plate 109 outside the rotating ring 104 can be adjusted by rotating the moving seat 106 and the second mounting plate 109. By adjusting the position of the moving seat 106 and the second mounting plate 109, the position of the inspection camera 108 and the airbag seat 111 can be adjusted to achieve different positions of the titanium alloy part for photographing and supplementary lighting.

[0023] Furthermore, during the shooting process using the inspection camera 108, multiple multi-color LED beads 302 can be activated to produce different colored lights to assist the inspection camera 108 in shooting. The multi-color LED beads 302 can be red, green, blue, white, or more. Under different lighting conditions, white light is used to check the overall appearance of the parts, whether there is dirt, obvious scratches, or uneven color. If the parts have colored markings or oxidation coloring, white light can most realistically restore the colors. Red light has a longer wavelength, relatively strong penetration, and is not easily scattered. If the titanium alloy surface has a thin transparent protective film, red light can better penetrate it to detect the underlying surface. For some materials, red light can better "bypass" small surface undulations and highlight larger contour features. During the use of blue light, the short wavelength and high energy of blue light make it easier to scatter. Under blue light, small scratches, pits, and cracks will form obvious dark or bright lines at the defect edges due to light scattering, thus greatly enhancing the contrast. This is highly effective for inspecting machined and matte surfaces of titanium alloys. Green light, with its wavelength and brightness between red and blue, is the color most sensitive to the human eye and also the peak sensitivity of many industrial camera sensors. When surface reflectivity is not extremely high, green light is a good compromise. It provides high brightness and good contrast, and is commonly used to inspect the geometry and contours of titanium alloy parts, as well as moderate surface defects. It fully utilizes the camera's performance, obtaining images with an extremely high signal-to-noise ratio.

[0024] like Figure 2As shown, during use, in the process of detailed shooting and inspection, the airbag seat 111 can be moved on the rotating ring 104 by the drive structure alone, moving the airbag seat 111 and the multi-color LED 302 to different positions. For example, the multi-color LED 302 can be placed on the back of the alloy part, facing the camera, for detecting the contour, holes, and dimensional measurement of the part, producing a high-contrast silhouette image, which is very suitable for dimensional inspection with high precision requirements. Alternatively, the multi-color LED 302 can be used to illuminate the part at a very low angle, almost parallel to the surface. Under this illumination, a flat and smooth surface will reflect light out of the camera's field of view, appearing as darkness in the image. However, any uneven defects, such as scratches, pits, or protrusions, will scatter light into the camera, thus appearing as bright features against a dark background.

[0025] like Figures 1-8 As shown, the drive structure includes a toothed plate 601, which is connected to the outer wall of the rotating ring 104. A micro motor 600 is mounted on the outside of the moving seat 106. A gear 602 is fixedly connected to the output shaft of the micro motor 600. A through slot 603 is provided on the outside of the moving seat 106. The gear 602 meshes with the toothed plate 601 through the through slot 603.

[0026] Specifically, when it is necessary to adjust the position of the movable seat 106 and the second mounting plate 109, the micro motor 600 can be started to drive the gear 602 to rotate. When the gear 602 rotates, it can cooperate with the outer toothed plate 601 of the rotating ring 104 to drive the movable seat 106 to slide inside the limiting slide groove 105. The sliding of the movable seat 106 inside the limiting slide groove 105 drives the detection camera 108 to move outside the rotating ring 104.

[0027] like Figures 1-8 As shown, the fine-tuning structure includes a movable slide 604, which is located on the side of the movable base 106 and the second mounting plate 109 away from the rotating ring 104. The first mounting plate 107 is slidably connected inside the movable slide 604. The detection camera 108 and the airbag seat 111 are mounted on the outside of the first mounting plate 107. A screw 500 is rotatably connected to the outside of the movable base 106. A threaded hole is provided on the outside of the first mounting plate 107, and the screw 500 is threadedly connected to the threaded hole. Two guide rods 501 are fixedly connected to the outside of the movable base 106, and the guide rods 501 penetrate the outer wall of the first mounting plate 107.

[0028] Specifically, during use, the operator can rotate the screw 500 by holding the knob on the outside of the screw 500. When the screw 500 rotates, it will cause the first mounting plate 107 to move outside the screw 500. The first mounting plate 107 has a T-shaped slider on top, which is the same as the moving slide 604. Therefore, the first mounting plate 107 will move inside the slide 604 under the action of the screw 500. This allows for fine-tuning of the vertical position of the detection camera 108 and the airbag seat 111 outside the moving seat 106, so as to adjust the shooting and detection of different titanium alloy parts. When the screw 500 is rotated to adjust the position of the first mounting plate 107, the guide rod 501 restricts the first mounting plate 107 from rotating outside the screw 500.

[0029] like Figures 1-3 As shown, the rotating structure includes a sleeve 700, which is rotatably connected to the inside of one of the support side plates 101 and rotatably connected to the outside of the central support rod 102. One end of the sleeve 700 passes through the outer wall of one of the support side plates 101 and is fixedly connected to a worm gear 703. A drive motor 701 is fixedly connected to the outside of the support side plate 101. The output shaft of the drive motor 701 is fixedly connected to a worm 702, which meshes with the worm gear 703.

[0030] Specifically, during use, the operator can start the drive motor 701. When the drive motor 701 is started, it can drive the worm gear 702 to rotate. When the worm gear 702 rotates, it can drive the meshing worm wheel 703 to rotate. When the worm wheel 703 rotates, it can drive the sleeve 700 to rotate. When the sleeve 700 rotates, it can drive the rotating ring 104 to rotate around the central support rod 102. The whole process drives the detection camera 108 and the multi-color LED beads 302 to take pictures around the placement seat 103, so as to capture more detection pictures from different angles and states.

[0031] like Figure 9 As shown, a soft bladder 800 is fixedly connected inside the placement base 103. The soft bladder 800 is filled with electrorheological fluid 801. A battery module 802 is inserted into the bottom wall of the placement base 103. A conductive wire is connected to the outside of the battery module 802. The energized end of the conductive wire is located inside the electrorheological fluid 801.

[0032] Specifically, during use, when the staff places the alloy part onto the soft capsule 800, the soft capsule 800 is relatively soft, and the titanium alloy part will sink when it sits on the soft capsule 800. When the titanium alloy part sinks, the soft capsule 800 on the outside of the titanium alloy part will float up and wrap around the part. At this time, the electrorheological fluid 801 is energized through the battery module 802, which can cause the electrorheological fluid 801 to drive the battery module 802 to form a hardened support, thereby forming a wrapping support and limiting the titanium alloy part, and assisting in the limiting work of the titanium alloy part during shooting.

[0033] The technical solutions in the above-described embodiments of this application have at least the following technical effects or advantages: Compared with the prior art, in this embodiment, the position-adjustable detection camera 108 and multi-color LED beads 302 enable continuous shooting and detection of different positions of different parts during continuous production. In addition to continuously adjusting the detection camera 108 to visually inspect the flatness of the parts, it can also continuously adjust the position of the light shining on the parts at different angles, so that the light shining on the surface of the parts produces different states at different angles, which assists the detection camera 108 in visual inspection. At the same time, it can also generate different colors of light when generating auxiliary lights, producing different part features at different angles, further assisting the detection camera 108 in visual inspection of the parts, and improving the visual inspection effect and speed.

[0034] Example 2: Considering that during use, the detection camera 108 requires the light to constantly change position, and that the light needs to be almost parallel to the surface of the part to detect whether a problem has occurred on the part's surface, in this case, the multi-color LED beads 302 need to be directly attached to the part's surface. To address the above technical problems, this application proposes the following technical solution: like Figures 1-4 As shown, a miniature air pump 110 is installed on the outside of the second mounting plate 109. The air outlet of the miniature air pump 110 is connected to an air delivery hose. The end of the air delivery hose away from the miniature air pump 110 is connected to the airbag seat 111.

[0035] Specifically, during use, the micro air pump 110 can be turned on to continuously supply gas into the airbag seat 111 through the gas delivery hose. During the continuous gas supply, gas continuously enters the airbag seat 111. When gas continuously enters the airbag seat 111, the airbag seat 111 will expand. When the airbag seat 111 expands, it will push the outer expansion bladder 301 located outside the airbag seat 111 to gradually approach the position of the placement seat 103. Thus, during the imaging and testing process, with the help of the fine adjustment structure, the outer expansion bladder 301 can be moved to a position that fits against the surface of the part, so as to achieve flush irradiation with the surface of the part.

[0036] like Figure 4 As shown, a multi-way electrically controlled valve 201 is installed inside the airbag seat 111. Another air outlet of the air supply hose is connected to the air inlet of the multi-way electrically controlled valve 201. At least four air outlets of the multi-way electrically controlled valve 201 are connected to a first delivery pipe 202. At least four internal push airbags 200 are fixedly connected inside the airbag seat 111. The air outlet of the first delivery pipe 202 is connected to the internal push airbag 200.

[0037] Specifically, during use, gas can be delivered to multiple first delivery pipes 202 via a multi-way solenoid valve 201. After gas enters the multiple first delivery pipes 202, it will be delivered to multiple inner push airbags 200 respectively. When gas enters the multiple inner push airbags 200, they will also expand. For example, when the multi-color LED beads 302 need to be tilted for illumination, the operator can use the multi-way solenoid valve 201 to deliver gas to the inner push airbag 200 located below. When the inner push airbag 200 located below expands individually, it will push the outer expansion bladder 301 and the multi-color LED beads 302 to tilt, thereby producing tilted illumination. Furthermore, the multiple inner push airbags 200 are set in different positions. When it is necessary to tilt to a certain position, it is only necessary to deliver gas into the inner push airbag 200 at the corresponding position to push the outer expansion bladder 301 and the multi-color LED beads 302 to produce the corresponding tilted illumination.

[0038] The technical solutions in the above embodiments of this application have at least the following technical effects or advantages: Compared with Embodiment 1, in this embodiment, by continuously injecting gas into the interior of the airbag seat 111, the airbag seat 111 can drive the multi-color LED beads 302 to continuously approach the placement seat 103. When continuously approaching the placement seat 103, the light generated by the multi-color LED beads 302 can be combined with the fine-tuning structure to achieve parallelism with the titanium alloy parts on the placement seat 103. Furthermore, when the airbag seat 111 drives the multi-color LED beads 302 to continuously approach the parts, gas can be injected into the interior of multiple internal pushing airbags 200 respectively. When gas is injected into the internal pushing airbags 200, the internal pushing airbags 200 can push the external expansion bladder 301 and the multi-color LED beads 302 to tilt, showing the effect of tilted lighting, which assists the detection camera 108 in shooting and detection.

[0039] Example 3: Considering that the sizes of titanium alloy parts are not uniform during lighting, when a larger part is placed outside the placement base 103, its volume may directly block the multi-color LED beads 302. In this case, the multi-color LED beads 302 cannot illuminate the back of the part, easily causing the part to block the light. To address the above technical problems, this application proposes the following technical solution to solve the above technical problems, specifically: like Figures 4-6 As shown, multiple external expansion bladders 301 are fixedly connected to the side of the airbag seat 111 away from the micro air pump 110. Other air outlets of the multi-way solenoid valve 201 are connected to a second delivery pipe 300. The end of the second delivery pipe 300 away from the multi-way solenoid valve 201 passes through the outer wall of the airbag seat 111 and is connected to the external expansion bladders 301. Multi-color LED beads 302 are installed on the outside of the external expansion bladders 301. The power-carrying wires of the multi-color LED beads 302 are located inside the airbag seat 111. A contact conductive ring is installed on the outside of the rotating ring 104. The power-carrying wires are connected to the power-carrying contacts and contact the contact conductive ring to achieve power supply.

[0040] Specifically, during use, the top surface of the airbag seat 111 near the placement seat 103 is made of a hard material. When a large part obstructs the light from the multi-color LED beads 302, gas can be continuously supplied to the interior of the outer expansion bladder 301 via the multi-way electric control valve 201 and the second delivery pipe 300. There are at least six outer expansion bladders 301. As gas continuously enters the outer expansion bladder 301, it expands. This expansion causes the multi-color LED beads 302 located on the outside to change position. As the outer expansion bladder 301 expands upwards, the spacing and position of the multiple multi-color LED beads 302 also change accordingly. Therefore, when dealing with larger parts, the expansion of the outer expansion bladder 301 simply moves the multi-color LED beads 302 upwards, allowing some of the multi-color LED beads 302 to be moved above the part, thus re-illuminating the part.

[0041] Furthermore, the power-carrying wires of the multicolor LED bead 302 are in a redundant state inside the outer expansion bladder 301 under normal conditions. When the outer expansion bladder 301 expands, the redundant power-carrying wires are sufficient for the outer expansion bladder 301 to pull the multicolor LED bead 302 to move.

[0042] like Figure 7As shown, considering that during use, when multiple external expansion bladders 301 expand simultaneously, the continuous expansion of multiple external expansion bladders 301 may cause them to misalign with each other. Once misalignment occurs, the expanding external expansion bladders 301 may squeeze and block the multi-color LED beads 302 on the outside of the expanding external expansion bladders 301. Therefore, multiple recessed electromagnet pieces 400 are fixedly connected to one side of the inner wall of the external expansion bladder 301, and a protruding electromagnet piece 401 is fixedly connected to the other side of the inner wall of the external expansion bladder 301.

[0043] Specifically, during use, when multiple external expansion bladders 301 need to expand simultaneously, the concave electromagnet 400 and convex electromagnet 401 can be energized before gas is introduced into the external expansion bladder 301. This causes the concave electromagnet 400 and convex electromagnet 401 to become magnetic, thereby attracting the concave electromagnet 400 or convex electromagnet 401 inside the adjacent external expansion bladder 301. As a whole, the multiple external expansion bladders 301 are attracted together on their sides when expanding, and will not be misaligned due to expansion, thus avoiding the phenomenon of misalignment that would block part of the multicolor LED beads 302.

[0044] Furthermore, when the concave electromagnet piece 400 and the convex electromagnet piece 401 are attached to adjacent outer expansion bladders 301, the concave electromagnet piece 400 on the inner wall of the adjacent outer expansion bladder 301 can produce a concave-convex fitting effect with the convex electromagnet piece 401 inside the current outer expansion bladder 301, making the side wall surfaces of the two outer expansion bladders 301 fit more tightly and reducing misalignment.

[0045] The technical solutions in the above-described embodiments of this application have at least the following technical effects or advantages: Compared with Embodiment 2, in this embodiment, when the worker is providing supplemental lighting to a large part, gas can be continuously supplied into the interior of the outward expansion bladder 301. When gas is continuously supplied into the interior of the outward expansion bladder 301, the outward expansion bladder 301 will expand. When the outward expansion bladder 301 expands, it will increase the spacing between multiple multi-color LED beads 302 and adjust the position of the multi-color LED beads 302, moving the multi-color LED beads 302 to a position where the part cannot be blocked, thereby providing supplemental lighting to the part again.

[0046] like Figure 4 As shown, air pressure sensors 900 are installed inside the airbag seat 111, multiple internal push airbags 200, and multiple external expansion airbags 301. The expansion displacement of the airbag seat 111 causes the multi-color LED beads 302 to move, and the calculation formula is as follows: ,in, To monitor air pressure in real time, Initial air pressure, , is the proportionality coefficient. The volume change of the airbag seat 111 is converted into a linear displacement coefficient; Specifically, displacement Used to determine if the LED bead is in position, when ≥ Threshold (preset distance), stop gas supply.

[0047] The air pressure sensor 900, located inside the internal thrust airbag 200, is used to calculate the tilt amount generated by the multi-color LED beads 302 driven by it. The calculation formula is as follows: ,in, and For the maximum and minimum pressure of multiple internal thrust airbags 200, For average pressure, The angle coefficient is calibrated using the airbag spacing and lever principle. The tilt angle; The pressure sensor 900, located inside the external expansion bladder 301, is used to determine the displacement state of the external expansion bladder 301 after expansion. Its calculation formula is as follows: , The image represents the cystic state, with 1 indicating expansion and 0 indicating non-expansion. This is the activation threshold.

[0048] The degree of expansion of each external expansion cyst 301.

[0049] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A visual inspection device for the macroscopic flatness of titanium alloys, comprising a support base (100), wherein two support side plates (101) are fixedly connected to the support base (100), characterized in that: A central support rod (102) is fixedly connected inside the supporting side plate (101). A placement seat (103) is fixedly connected outside the central support rod (102). A rotating ring (104) is rotatably connected outside the central support rod (102). A rotating structure is installed outside the rotating ring (104). A limiting groove (105) is opened outside the rotating ring (104). A movable seat (106) and a second mounting plate (109) are slidably connected inside the limiting groove (105). A driving structure is installed outside both the movable seat (106) and the second mounting plate (109). A detection camera (108) is installed outside the movable seat (106) through a fine-tuning structure. A supplementary lighting structure is installed outside the second mounting plate (109) through a fine-tuning structure. The supplementary lighting structure includes an airbag seat (111), which is mounted on a fine-tuning structure. Multiple multi-color LED beads (302) are mounted on the outside of the airbag seat (111). The multiple multi-color LED beads (302) are used to emit different colored lights to assist the detection camera (108) in shooting and detection.

2. The visual inspection device for macroscopic flatness of titanium alloy according to claim 1, characterized in that: A miniature air pump (110) is installed on the outside of the second mounting plate (109). The air outlet of the miniature air pump (110) is connected to an air delivery hose. The end of the air delivery hose away from the miniature air pump (110) is connected to the airbag seat (111).

3. The visual inspection device for macroscopic flatness of titanium alloy according to claim 1, characterized in that: The airbag seat (111) is equipped with a multi-way solenoid valve (201). Another outlet of the air supply hose is connected to the inlet of the multi-way solenoid valve (201). At least four outlets of the multi-way solenoid valve (201) are connected to a first delivery pipe (202). At least four internal push airbags (200) are fixedly connected inside the airbag seat (111). The outlet of the first delivery pipe (202) is connected to the internal push airbag (200).

4. The visual inspection device for macroscopic flatness of titanium alloy according to claim 3, characterized in that: Multiple external expansion bladders (301) are fixedly connected to the side of the airbag seat (111) away from the micro air pump (110). The other air outlets of the multi-way solenoid valve (201) are connected to a second delivery pipe (300). The end of the second delivery pipe (300) away from the multi-way solenoid valve (201) passes through the outer wall of the airbag seat (111) and is connected to the external expansion bladder (301). The multi-color LED bead (302) is installed on the outside of the external expansion bladder (301). The power-carrying wire of the multi-color LED bead (302) is located inside the airbag seat (111). A contact conductive ring is installed on the outside of the rotating ring (104). The power-carrying wire connects to the power-carrying contact point and contacts the contact conductive ring to achieve power supply.

5. The visual inspection device for macroscopic flatness of titanium alloy according to claim 4, characterized in that: A plurality of recessed electromagnet plates (400) are fixedly connected to one side of the inner wall of the external expansion bladder (301), and a protruding electromagnet plate (401) is fixedly connected to the other side of the inner wall of the external expansion bladder (301).

6. The visual inspection device for macroscopic flatness of titanium alloy according to claim 1, characterized in that: The fine-tuning structure includes a movable slide (604), which is located on the side of the movable seat (106) and the second mounting plate (109) away from the rotating ring (104). The movable slide (604) is slidably connected to a first mounting plate (107). The detection camera (108) and the airbag seat (111) are mounted on the outside of the first mounting plate (107). The movable seat (106) is rotatably connected to a screw (500). The first mounting plate (107) has a threaded hole on its outside. The screw (500) is threadedly connected to the threaded hole. The movable seat (106) is fixedly connected to two guide rods (501), which penetrate the outer wall of the first mounting plate (107).

7. The visual inspection device for macroscopic flatness of titanium alloy according to claim 1, characterized in that: The drive structure includes a toothed plate (601) connected to the outer wall of the rotating ring (104). A micro motor (600) is mounted on the outside of the movable seat (106). A gear (602) is fixedly connected to the output shaft of the micro motor (600). A through slot (603) is provided on the outside of the movable seat (106). The gear (602) passes through the through slot (603) and meshes with the toothed plate (601).

8. The visual inspection device for macroscopic flatness of titanium alloy according to claim 1, characterized in that: The rotating structure includes a sleeve (700), which is rotatably connected to the inside of one of the support side plates (101) and rotatably connected to the outside of the central support rod (102). One end of the sleeve (700) passes through the outer wall of one of the support side plates (101) and is fixedly connected to a worm gear (703). A drive motor (701) is fixedly connected to the outside of the support side plate (101). A worm (702) is fixedly connected to the output shaft of the drive motor (701), and the worm (702) meshes with the worm gear (703).

9. The visual inspection device for macroscopic flatness of titanium alloy according to claim 1, characterized in that: The placement base (103) is fixedly connected to a soft bladder (800), which is filled with electrorheological fluid (801). A battery module (802) is inserted into the bottom wall of the placement base (103). A conductive wire is connected to the outside of the battery module (802), and the energized end of the conductive wire is located inside the electrorheological fluid (801).

10. The visual inspection device for macroscopic flatness of titanium alloy according to claim 1, characterized in that: Pressure sensors (900) are installed inside the airbag seat (111), multiple internal push airbags (200), and multiple external expansion bladders (301). The expansion displacement of the airbag seat (111) causes the multi-color LED beads (302) to move, and the calculation formula is as follows: ,in, To monitor air pressure in real time, Initial air pressure, , is the proportionality coefficient. The volume change of the airbag seat (111) is converted into a linear displacement coefficient; The air pressure sensor (900) located inside the internal propulsion airbag (200) is used to measure the tilt amount generated by it driving the multi-color LED beads (302). The calculation formula is as follows: ,in, and For the maximum and minimum pressures among multiple internal thrust airbags (200), For average pressure, The angle coefficient is calibrated using the airbag spacing and lever principle. The tilt angle; The pressure sensor (900) located inside the external expansion bladder (301) is used to determine the displacement state generated after the external expansion bladder (301) expands. The calculation formula is as follows: , The image represents the cystic state, with 1 indicating expansion and 0 indicating non-expansion. This is the activation threshold. The degree of expansion of each externally expanding cyst (301).

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