Image acquisition automatic positioning device for flange visual inspection

Abstract

The present invention belongs to the field of automatic positioning technology, and in particular relates to an image acquisition automatic positioning device for flange visual inspection, comprising a first positioning component and a second positioning component, wherein a support shed is installed on the first positioning component, the second positioning component is installed on the support shed, a barrel component is also installed on the support shed, an image acquisition device is fixed on the second positioning component, the first positioning component positions the flange below the image acquisition device, the first positioning component can position the flange directly below the image acquisition device, so that the flange can face the image acquisition device during inspection and maintain a preset inspection orientation, the second positioning component is fixed with an image acquisition device, the second positioning component adjusts the position of the image acquisition device, and then can acquire flange images from multiple angles, thereby solving the problem that during visual inspection, the flange cannot be accurately located at a preset position and preset orientation for image acquisition, there is a depth error during inspection, and the workload of subsequent image processing is increased.

Description

Technical Field

[0001] The invention belongs to the technical field of automatic positioning, and in particular relates to an image acquisition automatic positioning device for flange visual detection. Background Art

[0002] During visual inspection of existing automobile exhaust pipe flanges, the flanges cannot be accurately located at the preset position and orientation of image acquisition, and there is a depth error during inspection, which increases the workload of subsequent image processing.

[0003] For example, the patent application number CN202110776691.4 is a flange positioning method based on binocular vision, including photographing the flange to be positioned with a binocular camera to obtain a left image and a right image; identifying the target flange from the left image, and calculating the coordinates of the center of the target flange in the left image and the pixel length of the inner diameter of the target flange in the left image, and calculating the approximate depth of field of the target flange; determining the approximate coordinates of the center of the target flange in the right image according to the approximate depth of field of the target flange, identifying the target flange in the right image, and determining the precise coordinates of the center of the target flange in the right image; calculating the position of the target flange in the binocular camera coordinate system according to the coordinates of the center of the target flange in the left and right images, the distance between the left and right cameras, and the focal length of the binocular camera to obtain the flange positioning result, but the disadvantage of this technical solution is that the flange cannot be accurately located at the preset position and preset orientation of the image acquisition, there is a depth error during detection, and the workload of subsequent image processing is increased. Summary of the invention

[0004] The purpose of the present invention is to provide an image acquisition automatic positioning device for flange visual inspection to solve the problems in the prior art. The specific technical solution is as follows:

[0005] The image acquisition automatic positioning device for flange visual inspection includes a first positioning component and a second positioning component. The first positioning component is installed with a support shed, and the second positioning component is installed on the support shed. The support shed is also installed with a barrel component. The second positioning component is fixed with an image acquisition device. The first positioning component positions the flange below the image acquisition device.

[0006] Furthermore, the barrel component includes a fixed barrel, which is installed on a supporting shed. A mobile barrel is provided below the fixed barrel. An adjustment space is provided between the fixed barrel and the mobile barrel. A discharge space is provided between the mobile barrel and the first positioning component bracket. The mobile barrel is fixed to one end of a pull rod, and the other end of the pull rod passes through the fixed barrel and is threadedly connected to a locking screw.

[0007] Furthermore, a ruler is fixed on the side of the fixed barrel, a scale line is arranged at the lower end of the ruler, and the lower edge of the movable barrel corresponds to the scale line.

[0008] Furthermore, a limiting block is slidably connected to the support shed, the limiting block is fixedly connected to one end of the second spring, the other end of the second spring is fixed to the support shed, and the front end of the limiting block is against the fixed barrel.

[0009] Further, the first positioning component includes an inspection platform, which is fixedly connected to the supporting shed, and a baffle is fixed on the inspection platform. A rack is slidably connected inside the baffle, and a pin extends from the side of the rack. The pin is threadedly connected to a locking screw. A movable plate is slidably connected in the area enclosed by the inspection platform and the baffle, and a placement groove is provided in the movable plate. When the movable plate rests against the end of the baffle, the placement groove corresponds to the discharge port of the movable barrel.

[0010] Furthermore, the end of the movable plate is rotatably connected to a push plate 1, and gears 1 are fixed at both ends of the push plate 1. Gear 1 is meshed with a rack gear for transmission. Bosses are fixed at both ends of the push plate 1, and a groove is provided at the end of the movable plate. The boss can be snapped into the groove. A baffle bar is also fixed at the end of the movable plate, and the push plate 1 can rest against the baffle bar.

[0011] Furthermore, connecting rods are fixed at both ends of the movable plate, and the connecting rods are fixedly connected to the bent rods. A cylinder 1 and a motor 1 are fixed at the lower end of the testing platform. The output end of the cylinder 1 is connected to the bent rod, and the output end of the motor 1 is connected to the bevel gear. The bevel gear is meshed with the turntable gear for transmission. The turntable is rotatably connected to the testing platform, and an inclined plate is provided at the end of the testing platform.

[0012] Furthermore, the second positioning component includes a second support plate, which is fixed on the support shed, a second motor is fixed on the second support plate, an output end of the second motor is connected to the central support plate, and an arc frame is fixed at the lower end of the central support plate.

[0013] Furthermore, a shell is fixed to the side of the arc frame, the shell is fixedly connected to the turn button, the turn button is fixedly connected to the screw, the screw rotates in the shell, the screw is threadedly connected to the fixed component, the fixed component slides in the shell, and the image acquisition device is fixed on the fixed component. In the initial state, the center point of the second output end of the motor, the center point of the central support plate, the image acquisition device and the center point of the turntable are on the same vertical line.

[0014] Furthermore, a motor three is fixed on the central support plate, an output end of the motor three is connected to a rotating rod one, the rotating rod one is rotatably connected to the central support plate, one end of the rotating rod is hingedly connected to two rotating rods two, the two ends of the two rotating rods are respectively hingedly connected to two rotating rods three, two rotating rods four are rotatably connected to the central support plate, the two rotating rods four are respectively hingedly connected to two rotating rods three, the two rotating rods three rotate in a fixed block, and the fixed block is fixed on a slider two.

[0015] The advantages of the present invention are:

[0016] The flange to be inspected can be placed in the barrel component. The first positioning component can position the flange directly below the image acquisition device, so that the flange can face the image acquisition device during inspection and maintain a preset inspection orientation. The image acquisition device is fixed on the second positioning component. The second positioning component adjusts the position of the image acquisition device, and thus can capture the flange image from multiple angles, thereby solving the problem that the flange cannot be accurately located at the preset position and preset orientation for image acquisition during visual inspection, resulting in depth error during inspection and increasing the workload of subsequent image processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0018] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0019] Figure 3 The overall structure of the present invention is shown in FIG. Figure 3 ;

[0020] Figure 4 The first positioning component structure of the present invention is schematically shown in FIG. Figure 1 ;

[0021] Figure 5 The first positioning component structure of the present invention is schematically shown in FIG. Figure 2 ;

[0022] Figure 6 The first positioning component structure of the present invention is schematically shown in FIG. Figure 3 ;

[0023] Figure 7 The first positioning component structure of the present invention is schematically shown in FIG. Figure 4 ;

[0024] Figure 8 The first positioning component structure of the present invention is schematically shown in FIG. Figure 5 ;

[0025] Fig. 9 The first positioning component structure of the present invention is schematically shown in FIG. Figure 6 ;

[0026] Fig.10 The second positioning component structure of the present invention is schematically shown in FIG. Figure 1 ;

[0027] Fig.11 The second positioning component structure of the present invention is schematically shown in FIG. Figure 2 ;

[0028] Fig.12 The second positioning component structure of the present invention is schematically shown in FIG. Figure 3 ;

[0029] Fig.13 The fixing component structure of the present invention is shown in FIG. Figure 1 ;

[0030] Fig.14 The fixing component structure of the present invention is shown in FIG. Figure 2 ;

[0031] Fig.15 The fixing component structure of the present invention is shown in FIG. Figure 3 ;

[0032] Fig.16 The fixing component structure of the present invention is shown in FIG. Figure 4 ;

[0033] Fig.17 The structure of the flip component of the present invention is schematically shown in FIG. Figure 1 ;

[0034] Fig.18 The structure of the flip component of the present invention is schematically shown in FIG. Figure 2 ;

[0035] Fig.19 The structure of the flip component of the present invention is schematically shown in FIG. Figure 3 ;

[0036] Fig. 20 The structure of the flip component of the present invention is schematically shown in FIG. Figure 4 ;

[0037] Description of the markings in the figure:

[0038] 1. First positioning component; 101. Fixed barrel; 102. Mobile barrel; 103. Pull rod; 104. Locking screw 1; 105. Ruler; 106. Testing table; 107. Baffle plate; 108. Rack 1; 109. Locking screw 2; 110. Mobile plate; 111. Placement slot; 112. Push plate 1; 113. Gear 1; 114. Boss; 115. Groove; 116. Baffle bar; 117. Connecting rod; 118. Bending rod ; 119, cylinder 1; 120, motor 1; 121, bevel gear; 122, turntable; 123, inclined plate; 2, flip component; 201, support plate 1; 202, track plate 1; 203, cylinder 2; 204, push rod 1; 205, track plate 2; 206, cylinder 3; 207, push rod 2; 208, slider 1; 209, rack 2; 210, gear 2; 211, rotating column; 212, limit column; 213, upper limit slot; 214, moving plate; 215, lower limit slot; 216, clamping frame; 217, cylinder four; 218, push plate two; 219, slide plate; 220, clamp arm; 3, second positioning component; 301, support plate two; 302, motor two; 303, center support plate; 304, motor three; 305, rotating rod one; 306, rotating rod two; 307, rotating rod three; 308, rotating rod four; 309, fixed block; 310, slider two; 3 11. Arc frame; 312. Shell; 313. Turning knob; 314. Screw; 4. Fixed parts; 401. Support plate three; 402. Disc frame; 403. Wrench; 404. Slider three; 405. Arc rack; 406. Long rod; 407. Spring one; 408. Turntable; 409. Turntable five; 410. Kit; 411. Support plate; 412. Rubber ring; 5. Support shed; 501. Limit block; 502. Spring two. DETAILED DESCRIPTION

[0039] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0041] Embodiment 1

[0042] like Figure 1-20 As shown, the image acquisition automatic positioning device for flange visual inspection includes a first positioning component 1 and a second positioning component 3, the first positioning component 1 is mounted with a support shed 5, the second positioning component 3 is mounted on the support shed 5, the support shed 5 is also mounted with a barrel component, the second positioning component 3 is fixed with an image acquisition device, and the first positioning component 1 positions the flange below the image acquisition device;

[0043] The working principle of the above technical solution is as follows: the flange to be inspected can be placed in the barrel component, and the first positioning component 1 can position the flange directly below the image acquisition device, so that the flange can face the image acquisition device during inspection and maintain the preset inspection orientation. The image acquisition device is fixed on the second positioning component 3, and the second positioning component 3 adjusts the position of the image acquisition device, thereby being able to capture flange images from multiple angles, thereby solving the problem that the flange cannot be accurately located at the preset position and orientation for image acquisition during visual inspection, resulting in depth error during inspection and increasing the workload of subsequent image processing.

[0044] Embodiment 2

[0045] like Figure 1-20 As shown, the barrel component includes a fixed barrel 101, which is installed on the support shed 5, a mobile barrel 102 is provided below the fixed barrel 101, an adjustment space is provided between the fixed barrel 101 and the mobile barrel 102, a discharge space is provided between the mobile barrel 102 and the first positioning component 1 bracket, the mobile barrel 102 is fixed to one end of the pull rod 103, and the other end of the pull rod 103 passes through the fixed barrel 101 and is threadedly connected with a locking screw 104;

[0046] The support shed 5 is slidably connected to a limit block 501, the limit block 501 is fixedly connected to one end of a second spring 502, the other end of the second spring 502 is fixed to the support shed 5, and the front end of the limit block 501 is against the fixed barrel 101;

[0047] The working principle of the above technical solution is as follows: the fixed barrel 101 can be inserted into the support shed 5 from the side of the support shed 5. When the outer wall of the fixed barrel 101 abuts against the limit block 501, the spring 2 502 is compressed, and the fixed barrel 101 continues to be pushed forward. The fixed barrel 101 abuts against the innermost side of the support shed 5. Under the action of the restoring elastic force of the spring 2 502, the limit block 501 is driven forward and abuts against the outer wall of the fixed barrel 101 to prevent the fixed barrel 101 from loosening at will, thereby facilitating the installation of the fixed barrel 101 and facilitating the replacement of barrel parts that can accommodate flanges of different models.

[0048] Embodiment 3

[0049] like Figure 1-20As shown, a ruler 105 is fixed to the side of the fixed barrel 101, and a scale line is provided at the lower end of the ruler 105, and the lower edge of the movable barrel 102 corresponds to the scale line;

[0050] The first positioning component 1 includes a detection platform 106, which is fixedly connected to the support shed 5, a baffle 107 is fixed on the detection platform 106, a rack 108 is slidably connected in the baffle 107, a pin extends from the side of the rack 108, and the pin is threadedly connected to the locking screw 2 109, and a movable plate 110 is slidably connected in the enclosed area of ​​the detection platform 106 and the baffle 107, and a placement groove 111 is provided in the movable plate 110, and when the movable plate 110 is against the end of the baffle 107, the placement groove 111 corresponds to the discharge port of the movable barrel 102;

[0051] The working principle of the above technical solution is: the height of the movable barrel 102 can be adjusted according to the flanges of different thicknesses, thereby changing the distance between the lower edge of the movable barrel 102 and the detection platform 106, and the lower edge of the movable barrel 102 corresponds to the scale line on the ruler 105;

[0052] Measure the height of the flange, remove the locking screw 104, move the mobile barrel 102 upward or downward, locate the position of the mobile barrel 102 corresponding to the scale line on the ruler 105, and fix the locking screw 104 on the pull rod 103 again. Under the gravity of the mobile barrel 102 and the locking action of the locking screw 104, the positions of the fixed barrel 101 and the mobile barrel 102 are relatively fixed, and the flange is inserted from the upper end of the fixed barrel 101. The flange is arranged in the fixed barrel 101 and the mobile barrel 102, and the lowermost flange falls into the placement groove 111.

[0053] Embodiment 4

[0054] like Figure 1-20 As shown, the end of the movable plate 110 is rotatably connected to a push plate 112, both ends of the push plate 112 are fixed with a gear 113, the gear 113 is meshed with the rack 108 for transmission, both ends of the push plate 112 are fixed with a boss 114, the end of the movable plate 110 is provided with a groove 115, the boss 114 can be snapped into the groove 115, the end of the movable plate 110 is also fixed with a stop bar 116, the push plate 112 can be against the stop bar 116;

[0055] The two ends of the movable plate 110 are fixed with connecting rods 117, and the connecting rods 117 are fixedly connected with the bent rods 118. The lower end of the detection platform 106 is fixed with a cylinder 119 and a motor 120. The output end of the cylinder 119 is connected with the bent rod 118, and the output end of the motor 120 is connected with a bevel gear 121. The bevel gear 121 is engaged with the gears of the turntable 122 for transmission. The turntable 122 is rotatably connected to the detection platform 106, and an inclined plate 123 is provided at the end of the detection platform 106.

[0056] The working principle of the above technical solution is as follows: start cylinder 119, drive the bent rod 118 to move forward, drive the connecting rod 117 to move forward, drive the moving plate 110 to move forward, the moving plate 110 pushes the flange in the placement groove 111 to move forward, the moving plate 110 body blocks the lower opening of the moving barrel 102, and while the moving plate 110 moves forward, the gear 113 and the rack 108 are engaged with each other, driving the gear 113 to rotate, driving the push plate 112 to rotate, and driving the protruding column 114 to abut against the groove 115. At this time, the push plate 112 cannot rotate, the gear 113 cannot rotate, the gear 113 drives the rack 108 to slide forward on the baffle 107, the push plate 112 pushes the flange on the turntable 122 off the inclined plate 123, and the moving plate 110 pushes the flange to fall on the turntable 122, the turntable 122 is located directly below the image acquisition device, and then the flange is pushed to the image acquisition device. Directly below the collecting equipment, the moving plate 110 stops moving forward, the cylinder 119 drives the bent rod 118 to move backward, drives the connecting rod 117 to move backward, drives the moving plate 110 to move backward, drives the gear 113 to mesh with the rack 108, drives the gear 113 to rotate, drives the push plate 112 to rotate, drives the push plate 112 to abut against the baffle 116, and the moving plate 110 continues to move backward. The gear 113 pulls the rack 108 to move backward on the baffle 107, and the push plate 112 passes over the flange on the turntable 122 until the moving plate 110 returns to the initial position. The moving plate 110 body is separated from the lower mouth of the moving barrel 102, and the flanges in the fixed barrel 101 and the moving barrel 102 move downward, and the lower flange falls into the placement groove 111. At this time, the previously detected flange is pushed away, and the next flange is positioned to the preset position, with a high degree of automation;

[0057] Turn the locking screw 2 109 to increase the friction between the baffle 107 and the rack 1 108, so that when the gear 1 113 and the rack 1 108 rotate, the baffle 107 and the rack 1 108 cannot slide;

[0058] The motor 120 is started to drive the bevel gear 121 to rotate, drive the turntable 122 to rotate, and then drive the flange on the turntable 122 to rotate, so that the image acquisition device can collect flange images at different angles.

[0059] Embodiment 5

[0060] like Figure 1-20 As shown, the second positioning component 3 includes a second support plate 301, the second support plate 301 is fixed on the support shed 5, a second motor 302 is fixed on the second support plate 301, the output end of the second motor 302 is connected to the central support plate 303, and an arc frame 311 is fixed at the lower end of the central support plate 303;

[0061] A shell 312 is fixed to the side of the arc frame 311, the shell 312 is fixedly connected to the knob 313, the knob 313 is fixedly connected to the screw 314, the screw 314 rotates in the shell 312, the screw 314 is threadedly connected to the fixed component 4, the fixed component 4 slides in the shell 312, the image acquisition device is fixed on the fixed component 4, and in the initial state, the center point of the output end of the motor 2 302, the center point of the central support plate 303, the image acquisition device and the center point of the turntable 122 are on the same vertical line;

[0062] The central support plate 303 is fixed with a motor 304, the output end of the motor 304 is connected to a rotating rod 1 305, the rotating rod 1 305 is rotatably connected to the central support plate 303, the end of the rotating rod 1 305 is hingedly connected to two rotating rods 2 306, the ends of the two rotating rods 2 306 are respectively hingedly connected to two rotating rods 3 307, the central support plate 303 is rotatably connected with two rotating rods 4 308, the two rotating rods 4 308 are respectively hingedly connected to the two rotating rods 3 307, the two rotating rods 3 307 are rotated in a fixed block 309, and the fixed block 309 is fixed to a slider 2 310;

[0063] The working principle of the above technical solution is as follows: the image acquisition device is installed in the fixed component 4, the image acquisition device can acquire the flange image on the turntable 122, the motor 304 is started, the rotating rod 1 305 is driven to rotate, the rotating rod 2 306 is driven to rotate, the rotating rod 3 307 and the rotating rod 4 308 are driven to rotate, the fixed block 309 and the slider 2 310 are driven to slide in the arc frame 311, the fixed component 4 is driven to move with the slider 2 310, and the image acquisition device is driven to move. Since the center point of the output end of the motor 2 302, the center point of the central support plate 303, the image acquisition device and the center point of the turntable 122 are on the same vertical line, and the arc frame 31 The center position of the circle 1 is set at the flange position on the turntable 122. When the image acquisition device follows the slider 2 310 to slide on the arc frame 311, the front end of the image acquisition device is always aligned with the flange on the turntable 122, so as to acquire flange images at different angles. The motor 2 302 is started to drive the central support plate 303 to rotate, drive the arc frame 311 to rotate, drive the fixing component 4 and the image acquisition device to rotate, and then acquire flange images at different positions and angles. The knob 313 is turned to drive the screw 314 to rotate, drive the fixing component 4 to rise or fall, and then change the distance between the image acquisition device and the flange, and then change the distance of the flange image acquisition.

[0064] Embodiment 6

[0065] like Figure 1-20As shown, the fixing component 4 includes a support plate 3 401, the support plate 3 401 is threadedly connected with the screw rod 314, the support plate 3 401 slides in the housing 312, a disc frame 402 is fixed at the lower end of the support plate 3 401, two sliders 3 404 are slidably connected in the disc frame 402, a wrench 403 is fixed on each of the two sliders 3 404, the sliders 3 404 are provided with helical teeth on the edges, the sliders 3 404 are gear-matched with the arc-shaped rack 405, the arc-shaped rack 405 slides in the disc frame 402, and the arc-shaped rack 405 is fixedly connected with the long rod 406 The long rod 406 is slidably connected to the disc frame 402, a spring 1 407 is sleeved on the outside of the long rod 406, one end of the spring 1 407 is fixedly connected to the arc rack 405, and the other end of the arc rack 405 is fixed to the disc frame 402, two sliders 3 404 are fixedly connected to the rotating disk 408, the disc frame 402 is rotatably connected to the rotating rod 5 409, the rotating rod 5 409 is slidably connected to the set 410, the set 410 rotates in the rotating disk 408, and a support disk 411 is fixed to the end of the rotating rod 5 409, and a rubber ring 412 is provided on the outer cover of the support disk 411;

[0066] The working principle of the above technical solution is as follows: insert the image acquisition device into the disc frame 402, rotate the two wrenches 403, drive the two sliders 3 404, drive the turntable 408 to rotate, drive the kit 410 and the rotating rod 5 409 to slide, drive the turntable 408 and the kit 410 to rotate, drive the rotating rod 5 409 and the disc frame 402 to rotate, drive the three support disks 411 to gather in the middle, the three support disks 411 clamp the image acquisition device, the three rubber rings 412 are in contact with the image acquisition device to increase the friction with the image acquisition device, the arc-shaped rack 405 can prevent the slider 3 404 from automatically reversing, pull the long rod 406 backwards, drive the arc-shaped rack 405 to move backward, drive the spring 1 407 to be compressed, drive the arc-shaped rack 405 to separate from the slider 3 404, and the slider 3 404 can be reversed, so as to facilitate the removal of the image acquisition device.

[0067] Embodiment 7

[0068] like Figure 1-20As shown, the flip component 2 includes a support plate 1 201, which is fixed on the support shed 5, and the support plate 1 201 is fixedly connected to the track plate 1 202, and the track plate 1 202 is fixedly connected to the cylinder 2 203, and the output end of the cylinder 203 is connected to the push rod 1 204, and the end of the push rod 1 204 is fixedly connected to the track plate 2 205, and the track plate 2 205 slides in the track plate 1 202, and the track plate 2 205 is fixedly connected to the cylinder 3 206, and the output end of the cylinder 3 206 is connected to the push rod 2 207, and the end of the push rod 207 is connected to the slider 1 208, and the slider 1 208 slides in the track plate 205, and the track plate 205 is provided with a rack 209, and the rack 209 is meshed with the gear 2 210 for transmission, and the gears are meshed with each other. Wheel 210 is fixedly connected to rotating column 211, rotating column 211 rotates in slider 1 208, slider 1 208 is slidably connected with moving plate 214, moving plate 214 is rotatably connected to rotating column 211, limiting column 212 is fixed on moving plate 214, upper limiting groove 213 and lower limiting groove 215 are provided on track plate 205, end of rotating column 211 is fixedly connected to clamping frame 216, clamping frame 216 is fixedly connected to cylinder 4 217, output end of cylinder 4 217 is connected to push plate 218, push plate 218 is slidably connected to clamping frame 216, push plate 218 is slidably connected to two slide plates 219, both slide plates 219 slide in clamping frame 216, and two slide plates 219 are respectively fixed to ends of two clamp arms 220;

[0069] The working principle of the above technical solution is as follows: after the image acquisition device completes acquiring the image of one side of the flange on the turntable 122, the flange needs to be flipped over to acquire the image of the other side of the flange. In the initial state, the track plate 205 is located at the end of the track plate 1 202 near the cylinder 203, so that the clamp arm 220 is not directly above the turntable 122, to prevent obstruction of the image acquisition device from acquiring the image of the flange. When the flange needs to be flipped over, the cylinder 203 is started to drive the push rod 1 204 to extend, drive the track plate 205 to slide in the track plate 1 202, so that the clamp arm 220 is located directly above the turntable 122, and the cylinder 3 206 is started to drive the push rod 207 to move downward, drive the slider 1 208 to the track plate 2 205 slides downward, driving the clamp arm 220 to move downward, starting the cylinder four 217, driving the push plate two 218 to move forward, driving the two slide plates 219 to slide to both sides in the clamping frame 216, driving the two clamp arms 220 to move to both sides, the limiting column 212 moves down to the lower limiting groove 215, and the two clamp arms 220 are located on both sides of the flange, and the cylinder four 217 is started again to drive the push plate two 218 to move backward, driving the two slide plates 219 to move together in the clamping frame 216, driving the two clamp arms 220 to move together, and the two clamp arms 220 clamp the flange, and the cylinder three 206 is started again to drive the push rod two 207 to move upward, driving the slider one 208 to move upward, and the clamp arm 220 clamps the flange When the gear 210 moves upward, it contacts the rack 209, and the gear 210 and the rack 209 are meshed, driving the gear 210 to rotate 180 degrees, driving the rotating column 211 to rotate 180 degrees, driving the clamping frame 216 to rotate 180 degrees, driving the clamp arm 220 and the clamp flange to rotate 180 degrees, and the slider 1 208 continues to move upward. The limit column 212 enters the upper limit groove 213, driving the limit column 212 to move right, driving the moving plate 214 to move right, and the moving plate 214 pulls the rotating column 211 to move right, driving the gear 210 to move right, and starting the cylinder 3 206 again, driving the push rod 207 to extend, pushing the slider 1 208 to move downward, and the right-moving gear 210 cannot Contacting with rack 209, slider 1 208 moves down to the lowest end, limiting column 212 contacts with lower limiting groove 215, lower limiting groove 215 drives limiting column 212 to move left, drives clamp arm 220 to clamp the flipped flange and put it back on turntable 122, starts cylinder 4 217, drives push plate 218 to move forward, drives two slide plates 219 to move toward both ends on clamping frame 216, drives two clamp arms 220 to move toward both ends, two clamp arms 220 are separated from flange, starts cylinder 203, drives push rod 1 204 to retract, drives track plate 205 to slide on track plate 1 202, drives two clamp arms 220 to move out of the area above turntable 122, and completes the flipping of flange.

[0070] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. Image acquisition automatic positioning device for flange visual inspection, characterized in that: The device comprises a first positioning component (1) and a second positioning component (3), wherein a support shed (5) is mounted on the first positioning component (1), the second positioning component (3) is mounted on the support shed (5), a barrel component is also mounted on the support shed (5), an image acquisition device is fixed on the second positioning component (3), and the first positioning component (1) positions the flange below the image acquisition device; The barrel component comprises a fixed barrel (101), the fixed barrel (101) is mounted on a support shed (5), a movable barrel (102) is arranged below the fixed barrel (101), an adjustment space is arranged between the fixed barrel (101) and the movable barrel (102), a discharge space is arranged between the movable barrel (102) and a bracket of the first positioning component (1), the movable barrel (102) is fixed to one end of a pull rod (103), and the other end of the pull rod (103) passes through the fixed barrel (101) and is threadedly connected to a locking screw (104); The first positioning component (1) comprises a detection platform (106), the detection platform (106) is fixedly connected to the support shed (5), a baffle (107) is fixed on the detection platform (106), a rack (108) is slidably connected inside the baffle (107), a pin extends from the side of the rack (108), the pin is threadedly connected to a locking screw (109), a moving plate (110) is slidably connected in the enclosed area of ​​the detection platform (106) and the baffle (107), a placement groove (111) is provided in the moving plate (110), and when the moving plate (110) is against the end of the baffle (107), the placement groove (111) corresponds to the discharge port of the moving barrel (102); The end of the movable plate (110) is rotatably connected to a push plate (112), and a gear (113) is fixed to both ends of the push plate (112), and the gear (113) is meshed with a rack (108) for transmission. A convex column (114) is fixed to both ends of the push plate (112), and a groove (115) is provided at the end of the movable plate (110), and the convex column (114) can be snapped into the groove (115). A stop bar (116) is also fixed to the end of the movable plate (110), and the push plate (112) can be pressed against the stop bar (116); Both ends of the movable plate (110) are fixed with connecting rods (117), the connecting rods (117) are fixedly connected to the bent rods (118), a cylinder (119) and a motor (120) are fixed to the lower end of the detection platform (106), the output end of the cylinder (119) is connected to the bent rod (118), the output end of the motor (120) is connected to a bevel gear (121), the bevel gear (121) is gear-engaged with a rotating disk (122), the rotating disk (122) is rotatably connected to the detection platform (106), and an inclined plate (123) is provided at the end of the detection platform (106); The second positioning component (3) comprises a second support plate (301), the second support plate (301) is fixed on the support shed (5), a second motor (302) is fixed on the second support plate (301), the output end of the second motor (302) is connected to the central support plate (303), and an arc frame (311) is fixed at the lower end of the central support plate (303); A shell (312) is fixed to the side of the arc frame (311), the shell (312) is fixedly connected to a rotating knob (313), the rotating knob (313) is fixedly connected to a screw rod (314), the screw rod (314) rotates in the shell (312), the screw rod (314) is threadedly connected to a fixed component (4), the fixed component (4) slides in the shell (312), the image acquisition device is fixed on the fixed component (4), and in an initial state, the center point of the output end of the second motor (302), the center point of the central support plate (303), the image acquisition device and the center point of the turntable (122) are on the same vertical line; A motor three (304) is fixed on the central support plate (303), the output end of the motor three (304) is connected to the rotating rod one (305), the rotating rod one (305) is rotatably connected to the central support plate (303), the end of the rotating rod one (305) is hingedly connected to the two rotating rods two (306), the ends of the two rotating rods two (306) are respectively hingedly connected to the two rotating rods three (307), the central support plate (303) is rotatably connected to two rotating rods four (308), the two rotating rods four (308) are respectively hingedly connected to the two rotating rods three (307), the two rotating rods three (307) are rotatable in a fixed block (309), and the fixed block (309) is fixed on a slider two (310).

2. The image acquisition automatic positioning device for flange visual inspection according to claim 1 is characterized in that: A ruler (105) is fixed on the side of the fixed barrel (101), and a scale line is arranged at the lower end of the ruler (105), and the lower edge of the movable barrel (102) corresponds to the scale line.

3. The image acquisition automatic positioning device for flange visual inspection according to claim 2 is characterized in that: The support shed (5) is slidably connected to a limit block (501), the limit block (501) is fixedly connected to one end of spring 2 (502), the other end of spring 2 (502) is fixed to the support shed (5), and the front end of the limit block (501) is against the fixed barrel (101).

Images