Flange hole position detection device

Abstract

The present invention relates to the field of flange detection technology, and discloses a flange hole detection device, comprising a base and a detection frame, a supporting plate rotatably provided on the base, movable seats for stacking multiple flanges at both ends of the supporting plate being lifted and lowered, a linkage component 1 being provided between the rise of the movable seat at a lower position and the descent of the movable seat at a higher position, and a power switching component being provided between the driving linkage component 1 and the power source for rotating the supporting plate, a clamping component for self-centering the inner wall of the flange being lifted and lowered on the detection frame, a circular disc rotatably provided on the support plate, an extension seat being provided on the circular disc, and two marking pens that slide left and right being provided on the extension seat. The present invention can not only perform convenient and fast detection operations on multiple flanges, but can also perform synchronous detection on multiple positioning holes on the flange during detection, thereby improving the use efficiency of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of flange detection, and in particular to a flange hole position detection device. Background Art

[0002] Flange, also known as flange, is a general term for a disc-shaped metal body with several holes cut around its perimeter for connection. Workers typically place flanges at pipe joints, insert a gasket between the two flanges, and then secure them with bolts through the evenly spaced holes.

[0003] In the processing of medium and large flanges, in order to improve the internal structure and enhance the mechanical properties, they are usually first forged into a disc body. After forging is completed, multiple positioning holes are processed in the circumferential direction of the disc body. In order to ensure the connection accuracy of the multiple positioning holes, the positions of the positioning holes on the flange need to be inspected. During the inspection, it is usually necessary to conduct random inspections on a certain number of flanges according to the proportion. When inspecting multiple flanges, the existing method is usually to first lay the multiple flanges to be inspected flat on a placement rack on the ground, and then use a measuring ruler in conjunction with a tool to measure and inspect the positions of the multiple positioning holes on each flange one by one.

[0004] In the above operation, when placing multiple flanges, a large area is occupied, and the inspection process is not only cumbersome, but also the positions of multiple positioning holes on the flanges cannot be inspected synchronously, which reduces the inspection efficiency of the device. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the above difficulties and provide a flange hole position detection device.

[0006] In order to solve the above technical problems, the technical solution provided by the present invention is as follows: a flange hole position detection device, which is used to detect the positions of multiple positioning holes in the circumferential direction of the flange, comprising a base and a detection frame, a carrying plate rotatably provided on the base, and movable seats for stacking multiple flanges at both ends of the carrying plate being liftable, one of the movable seats at both ends being in a low position and the other being in a high position, a linkage component 1 being provided between the rising of the movable seat at the low position and the descending of the movable seat at the high position, and a power switching component being provided between the power source for driving the linkage component 1 and the rotation of the carrying plate;

[0007] The detection frame is equipped with a lifting type clamping assembly that self-centers the inner wall of the flange, and is also fixed with a support plate that slides with the clamping assembly. A circular disc is rotatably provided on the support plate, and an extension seat is provided on the circular disc. The extension seat is provided with two marking pens that slide left and right. When the clamping assembly moves upward, the marking pen abuts against the top surface of the flange, and the two marking pens are tangent to the two sides of the positioning hole, and the distance between the two tangent points to the center line of the disc is the minimum and maximum distance between the positioning hole and the center line of the disc.

[0008] As an improvement, the linkage assembly includes a hollow rotating cylinder rotatably arranged at the center of the carrier plate. The rotation of the rotating cylinder drives one movable seat to rise while the other movable seat to descend. A rotating shaft located in the rotating cylinder and rotatingly cooperating with the base is provided at the center of the bottom surface of the carrier plate. A power switching assembly is provided between the rotating shaft and the power source of the rotating cylinder.

[0009] When the power switching assembly selectively cooperates with the rotating drum or the rotating shaft, it not only positions or releases the positioning of the carrier plate, but also drives the rotating drum and the rotating shaft to separate or connect.

[0010] As an improvement, the power switching assembly includes a motor mounted on a base, a spline shaft provided on the output shaft of the motor, a gear sleeved on the spline shaft, an extension cylinder provided on the gear, and a lifting cylinder rotatably provided on the extension cylinder, a positioning rod for positioning the carrying plate on the lifting cylinder, and a docking hole for inserting the positioning rod is provided on the carrying plate;

[0011] The rotating cylinder is provided with a gear 2, the rotating shaft is provided with a coaxial spline shaft 2, the spline shaft 2 is sleeved with a gear 3, the upper and lower end surfaces of the gear 3 are provided with an extension cylinder 2 and an extension cylinder 3, the extension cylinder 3 is rotatably provided with a lifting cylinder 2, the extension cylinder 2 is provided with a latching tooth, and the inner wall of the rotating cylinder is provided with a matching seat for the latching tooth to extend into, and a linkage component 2 is provided between the descent and ascent of the lifting cylinder 1 and the ascent and descent of the lifting cylinder 2, the up and down sliding of the lifting cylinder 1 drives the positioning rod and the docking hole to engage or separate, and the up and down sliding of the lifting cylinder 2 drives the latching tooth and the matching seat to engage or separate.

[0012] As an improvement, the linkage assembly 2 includes tooth plates fixedly arranged at the opposite ends of the two lifting cylinders 1 and 2, and a gear 4 is rotatably provided on the base and meshes with the two tooth plates.

[0013] As an improvement, a double-groove pulley is provided on the rotating cylinder, and adjustment screws are rotatably provided at both ends of the carrying plate, which are engaged with the threads of the two moving seats and have opposite spirals. Pulleys are provided on the bottom surfaces of the two adjusting screws, and transmission belts are sleeved between the two pulleys and the double-groove pulleys. Guide rods are fixed at both ends of the carrying plate, which are engaged with the moving seats in a sliding manner.

[0014] As an improvement, the clamping assembly includes a lifting electric cylinder arranged on the detection frame, a connecting seat is sleeved on the outer wall of the fixed end of the electric cylinder, and a lifting seat is provided at the movable end. A plurality of inverted L-shaped swing arms are hingedly provided on the lifting seat at equal distances along the circumferential direction, and the other end of each swing arm is hingedly connected to a positioning seat abutting the inner wall of the flange. A plurality of support plates hinged at the corners of each swing arm are fixed on the bottom surface of the connecting seat, and a rocker arm is hingedly provided between the other end of the support plate and the positioning seat.

[0015] As an improvement, the fixed end of the electric cylinder is slidably connected to the support disk through splines and keyways. A gear ring is provided on the top surface of the disk, a motor 2 is installed on the detection frame, and a gear 5 meshing with the gear ring is provided at the output shaft end of the motor 2.

[0016] As an improvement, the fixed end of the electric cylinder 1 is fixed with a connecting frame that slides with the detection frame, the detection frame is provided with electric cylinder 2, and the movable end of electric cylinder 2 is fixedly connected to the top surface of electric cylinder 1.

[0017] The beneficial effects of the present invention compared with the prior art are:

[0018] 1. Under the action of the lifting movable seats set at both ends of the rotating carrier plate, multiple flanges to be inspected can be stacked and placed on the lower movable seats in sequence during the processing. After the inspection is completed, the carrier plate is rotated, and the inspected flanges are connected by the movable seats at the upper position, thereby reducing the occupied area requirement during the inspection of multiple flanges;

[0019] 2. Under the action of the linkage component 1 set between the two moving seats, when one moving seat is rising, the other moving seat is lowering, so that the movements of the two moving seats can be controlled conveniently and quickly;

[0020] 3. Under the action of the power switching assembly provided between the power source for driving the linkage assembly 1 and the rotation of the carrier plate, the action of the linkage assembly 1 or the rotation of the carrier plate can be selectively controlled as needed under the action of one power source, thereby reducing the power source demand of the device;

[0021] 4. With the cooperation of the self-centering clamping assembly, disc, extension seat and marking pen, the flange can be positioned by the self-centering clamping assembly first, and the center position of the flange can be limited at the same time. Then the disc can be rotated to drive the extension seat and the marking pen to rotate. When it rotates one circle, two concentric circles can be formed on both sides of the multiple positioning holes of the flange, and then it can be judged whether each positioning hole is within the two concentric circles, so that the positions of multiple positioning holes can be detected synchronously, thereby improving the detection efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the present invention Figure 1 .

[0023] Figure 2 This is a schematic diagram of the structure of the present invention Figure 2 .

[0024] Figure 3 It is a schematic structural diagram of the present invention without a blue disk.

[0025] Figure 4 It is a structural diagram of the coordination of the rotating drum, the rotating shaft and the power source in the present invention.

[0026] Figure 5 It is a structural diagram of the power switching component in the present invention.

[0027] Figure 6 This invention Figure 5 Enlarged view of point A in the middle.

[0028] Figure 7 It is a structural diagram of the cooperation between the positioning rod and the carrying plate in the present invention.

[0029] Figure 8 It is a structural diagram of linkage component 1 in the present invention.

[0030] Figure 9 This is a schematic diagram of the structure of the clamping assembly in the present invention. Figure 1 .

[0031] Figure 10 This is a schematic diagram of the structure of the clamping assembly in the present invention. Figure 2 .

[0032] As shown in the figure: 1. Base; 111. Carrying plate; 112. Moving seat; 113. Rotating shaft; 114. Spline shaft 2; 115. Gear 3; 116. Extension cylinder 2; 117. Extension cylinder 3; 118. Lifting cylinder 2; 119. Gear; 120. Blocking nut 2; 121. Slewing bearing; 2. Detection frame; 211. Support plate; 212. Disc; 213. Extension seat; 214. Marking pen; 215. Gear ring; 216. Motor 2; 217. Gear 5; 218. Connecting frame; 219. Electric cylinder 2; 3. Linkage assembly 1; 311. Rotating cylinder; 312. Gear 2; 313. Matching seat; 314 , double-groove pulley; 315, adjusting screw rod; 316, pulley; 317, transmission belt; 318, guide rod; 4, power switching assembly; 411, motor one; 412, spline shaft one; 413, gear one; 414, extension cylinder one; 415, lifting cylinder one; 416, positioning rod; 417, blocking nut one; 418, electric push rod; 5, clamping assembly; 511, electric cylinder one; 512, connecting seat; 513, lifting seat; 514, swing arm; 515, positioning seat; 516, support plate; 517, rocker arm; 6, linkage assembly two; 611, tooth plate; 612, gear four; 7, flange; 711, positioning hole. DETAILED DESCRIPTION

[0033] The present invention will be described in further detail below with reference to the accompanying drawings.

[0034] Combined with attachment Figure 1 , Attachment Figure 2 and attached Figure 3 As shown, a flange hole position detection device is used to detect the positions of multiple positioning holes 711 in the circumferential direction of the flange 7, including a base 1 and a detection frame 2, the base 1 is movable, and a carrying plate 111 is rotatably provided on the base 1. In order to ensure the stability of the carrying plate 111 during rotation, the bottom surface of the carrying plate 111 is fixedly connected to the inner ring of the slewing bearing 121, and the outer ring of the slewing bearing 121 is fixedly connected to the base 1 through a support rod, and both ends of the carrying plate 111 are symmetrically provided with a movable seat 112 for stacking multiple flanges 7, one of the movable seats 112 at both ends is in a low position and the other is in a high position, a linkage component 3 is provided between the rise of the movable seat 112 in the low position and the descent of the movable seat 112 in the high position, and a power switching component 4 is provided between the power source for driving the linkage component 3 and the rotation of the carrying plate 111;

[0035] The detection frame 2 is provided with a lifting clamping assembly 5 for self-centering the inner wall of the flange 7, and the base 1 is provided with a detection assembly for detecting the rotation of the carrier plate 111 by 180 degrees. The detection frame 2 is also fixed with a support plate 211 that slides with the clamping assembly 5. A circular disc 212 is rotatably provided on the support plate 211, and an extension seat 213 is provided on the circular disc 212. The extension seat 213 is provided with two marking pens 214 that slide left and right. When the clamping assembly 5 moves upward, the marking pen 214 is brought into contact with the top surface of the flange 7. The two marking pens 214 are tangent to the two sides of the positioning hole 711, and the distance between the two tangent points to the center line of the disk 212 is the minimum and maximum distance between the positioning hole 711 and the center line of the disk 212.

[0036] Through the above structure, first, multiple flanges to be tested are stacked and placed on the moving seat 112 at the lower position in sequence, then the base 1 is moved to the detection frame 2 and the flange 7 is made to correspond to the clamping assembly 5, and then the power switching assembly 4 is coordinated with the linkage assembly 13, and the moving seat 112 at the lower position is controlled to move upward and the moving seat 112 at the higher position is moved downward through the linkage assembly 13, and the top flange 7 after the stacking is covered with the clamping assembly 5, and the action of the clamping assembly 5 is controlled to perform self-centering positioning on the top flange 7, so that the center position of the flange 7 can be limited, and then the clamping assembly 5 is controlled to move upward. The disc 212 and the marking pen 214 are then controlled to rotate, and when the marking pen 214 rotates one circle, two concentric circles are formed at both ends of the multiple positioning holes 711 on the flange 7, and then it is determined whether each positioning hole 711 is within the two concentric circles, thereby being able to perform synchronous detection of the positions of the multiple positioning holes 711, thereby improving the detection efficiency of the device.

[0037] After the inspection is completed, the power switching component 4 is matched with the carrier plate 111, and then the carrier plate 111 is driven to rotate 180 degrees, so that the clamping component 5 corresponds to another movable seat 112 and the inspected flange 7 is placed through this movable seat 112. Similarly, multiple stacked flanges 7 can be effectively inspected one by one.

[0038] Combined with attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 , Attachment Figure 6 , Attachment Figure 7 and attached Figure 8As shown, the linkage assembly 1-3 includes a hollow rotating cylinder 311 rotatably disposed at the center of the carrier plate 111. The rotation of the rotating cylinder 311 drives one movable seat 112 to rise while the other movable seat 112 to descend. A rotating shaft 113 is provided at the center of the bottom surface of the carrier plate 111, which is located inside the rotating cylinder 311 and rotates with the base 1. A power switching assembly 4 is provided between the rotating shaft 113 and the power source of the rotating cylinder 311.

[0039] When the power switching assembly 4 selectively cooperates with the rotating cylinder 311 or the rotating shaft 113, it not only positions or releases the positioning of the carrier plate 111, but also drives the rotating cylinder 311 and the rotating shaft 113 to separate or connect.

[0040] The power switching assembly 4 includes a motor 411 mounted on the base 1, a spline shaft 412 is provided on the output shaft of the motor 411, a gear 413 is sleeved on the spline shaft 412, an extension cylinder 414 is provided on the gear 413 to cooperate with the spline shaft 412, and a lifting cylinder 415 is rotatably provided on the extension cylinder 414, an external thread is provided on the extension cylinder 414, and a blocking nut 417 is threaded on the external thread to limit the lifting cylinder 415, a positioning rod 416 for positioning the carrying plate 111 is fixed on the outer wall of the lifting cylinder 415, and the carrying plate 111 is provided with a docking hole for inserting the positioning rod 416, and an electric push rod 418 hingedly connected to the lifting cylinder 415 is provided on the base 1;

[0041] The rotating cylinder 311 is provided with a gear 2 312 that can mesh with the gear 1 413, the rotating shaft 113 is provided with a coaxial spline shaft 2 114, the spline shaft 2 114 is sleeved with a gear 3 115 that can mesh with the gear 1 413, the upper and lower end surfaces of the gear 3 115 are provided with an extension cylinder 2 116 and an extension cylinder 3 117 that cooperate with the spline shaft 2 114, the extension cylinder 3 117 is rotatably provided with a lifting cylinder 2 118, the extension cylinder 3 117 is provided with an external thread and a threaded connection with the lifting cylinder The second blocking nut 120 is limited by the second 118, and the extension cylinder 116 is provided with a latch 119. The inner wall of the rotating cylinder 311 is provided with a matching seat 313 for the latch 119 to extend into. A linkage component 26 is provided between the descent and ascent of the lifting cylinder 1 415 and the ascent and descent of the lifting cylinder 2 118. The up and down sliding of the lifting cylinder 1 415 drives the positioning rod 416 and the docking hole to engage or separate, and the up and down sliding of the lifting cylinder 2 118 drives the latch 119 and the matching seat 313 to engage or separate.

[0042] The principle of the separation of the linkage component 13 and the power switching component 4 and the cooperation between the carrier plate 111 and the power switching component 4 is to control the electric push rod 418 to shrink, driving the lifting cylinder 1 415 and the positioning rod 416 to slide downward. The downward sliding of the lifting cylinder 1 415 drives the gear 1 413 to slide downward and separate from the gear 2 312. The downward sliding of the positioning rod 416 separates from the docking hole, so that the positioning of the carrier plate 111 is released. When the lifting cylinder 1 415 slides downward, under the action of the linkage component 2 6, the lifting cylinder 1 The second gear 118 slides upward, driving the third gear 115 to slide upward. During the process of gear one 413 sliding downward and gear three 115 sliding upward, the two are engaged, starting the motor one 411, driving gear one 413 to rotate, and then driving gear three 115 and the rotating shaft 113 to rotate, and then driving the supporting plate 111 to rotate. The upward sliding of the lifting cylinder two 118 also drives the locking teeth 119 and the matching seat 313 to engage with each other, so that the rotating cylinder 311 can be driven to rotate synchronously when the rotating shaft 113 rotates.

[0043] Combined with attachment Figure 4 As shown, the linkage assembly 2 6 includes tooth plates 611 fixedly arranged at the opposite ends of the two lifting cylinders 1 415 and the lifting cylinder 2 118 respectively, and a groove body for the two tooth plates 611 to extend into is opened on the base 1, and the two tooth plates 611 slide in cooperation with the inner wall of the groove body, and a gear 4 612 is rotatably provided on the base 1 to mesh with the two tooth plates 611.

[0044] The working principle of linkage assembly 2 6 is that when lifting cylinder 1 415 descends, it drives the tooth plate 611 connected to it to slide downward, and then drives gear 4 612 to rotate, and then drives another tooth plate 611 to slide upward, and at the same time drives lifting cylinder 2 118 to slide upward.

[0045] Combined with attachment Figure 8 As shown, a double-groove pulley 314 is provided on the rotating cylinder 311, and adjusting screws 315 that are threadedly matched with the two moving seats 112 and have opposite spirals are rotatably provided at both ends of the supporting plate 111. Pulleys 316 are provided on the bottom surfaces of the two adjusting screws 315, and a transmission belt 317 is sleeved between the two pulleys 316 and the double-groove pulley 314. Guide rods 318 that are slidably matched with the moving seat 112 are fixedly provided at both ends of the supporting plate 111, and the diameter of the guide rods 318 is smaller than the diameter of the positioning holes 711, so that the positioning holes 711 at both ends of the flange 7 can be sleeved on the guide rods 318, which plays a certain limiting role in the position of the flange 7.

[0046] The working principle of the two movable seats 112 rising and falling is that when the rotating cylinder 311 rotates, the double-groove pulley 314 is driven to rotate, and under the action of the transmission belt 317, the pulleys 316 at both ends are driven to rotate, and then the adjusting screw rods 315 with opposite spirals at both ends are driven to rotate. Under the action of the positive and negative thread forces, the movable seat 112 at the lower position is driven to move upward, and the movable seat 112 at the high position is moved downward. The movable seat 112 moving upward can lift the stacked flanges 7, and the movable seat 112 moving downward can place the flanges 7 after inspection.

[0047] Combined with attachment Figure 9 and attached Figure 10 As shown, the clamping assembly 5 includes an electric cylinder 511 that is lifted and lowered and is arranged on the detection frame 2. A connecting seat 512 is fixedly sleeved on the outer wall of the fixed end of the electric cylinder 511, and a lifting seat 513 is provided on the movable end. A plurality of inverted L-shaped swing arms 514 are hingedly provided on the lifting seat 513 at equal distances along the circumferential direction. The other end of each swing arm 514 is hingedly connected to a positioning seat 515 that abuts against the inner wall of the flange 7, and the ends of the plurality of positioning seats 515 abutting against the inner wall of the flange 7 are arc-shaped structures. A plurality of support plates 516 hingedly connected to the corners of each swing arm 514 are fixed on the bottom surface of the connecting seat 512. In order to ensure the stability of the positioning seat 515 during the swinging process, a rocker rod 517 is hingedly provided between the other end of the support plate 516 and the positioning seat 515.

[0048] The working principle of the clamping assembly 5 is that when the uppermost flange 7 is covered with the clamping assembly 5, the electric cylinder 511 is controlled to extend, driving the lifting seat 513 to slide downward, and then driving the multiple swing arms 514 hinged to it to swing, and then driving the multiple positioning seats 515 to swing toward the inner wall of the flange 7, performing a self-centering positioning operation on the flange 7.

[0049] In order to ensure the concentricity of the electric cylinder 511 and the support disk 211, the fixed end of the electric cylinder 511 is slidably connected to the support disk 211 by means of splines and keyways. A gear ring 215 concentric with the disc 212 is fixedly provided on the top surface of the disc 212. A motor 216 is installed on the detection frame 2, and a gear 5 217 meshing with the gear ring 215 is provided at the output shaft end of the motor 216. When the motor 216 is started, the gear 5 217 is driven to rotate, and then the gear ring 215 and the disc 212 are driven to rotate.

[0050] The fixed end of the electric cylinder 1 511 is fixed with a connecting frame 218 that slides with the detection frame 2. The detection frame 2 is provided with an electric cylinder 219. The movable end of the electric cylinder 219 is fixedly connected to the top surface of the electric cylinder 1 511.

[0051] During the specific implementation of the present invention, the multiple flanges 7 to be inspected are first stacked and placed on the movable seat 112 at the lower position, and then the base 1 is moved to the detection frame 2 so that the flanges 7 correspond to the clamping assembly 5. The power switching assembly 4 is first coordinated with the linkage assembly 1-3. Through the action of the linkage assembly 1-3, the movable seat 112 and the flanges 7 are driven to lift upward, and then the uppermost flange 7 is positioned by the clamping assembly 5. Then, the clamping assembly 5 and the flange 7 are controlled to slide upward so that the flange 7 and the two marking pens 214 abut against each other, and the disc 212 and the two marking pens 214 are controlled to rotate so that two concentric circles are formed at both ends of the positioning hole 711, thereby effectively detecting the positions of the multiple positioning holes 711.

[0052] After the inspection is completed, the power switching component 4 and the carrier plate 111 are matched to control the carrier plate 111 to rotate 180 degrees, so that the other movable seat 112 is rotated to the position corresponding to the clamping component 5 and the flange after inspection is connected.

[0053] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above and, without departing from the purpose of the present invention, designs structures and embodiments similar to the technical solution without creatively designing, they shall fall within the scope of protection of the present invention.

Claims

1. A flange hole position detection device for detecting the positions of a plurality of positioning holes (711) in the circumferential direction of a flange (7), characterized in that: The invention comprises a base (1) and a detection frame (2), wherein a carrier plate (111) is rotatably provided on the base (1), and movable seats (112) for stacking a plurality of flange plates (7) are provided at both ends of the carrier plate (111) in a lifting manner, one of the movable seats (112) at both ends is in a low position and the other is in a high position, and a linkage component (3) is provided between the rising of the movable seat (112) at the low position and the descending of the movable seat (112) at the high position, and a power switching component (4) is provided between the power source for driving the linkage component (3) and the rotation of the carrier plate (111); The detection frame (2) is provided with a lifting type clamping assembly (5) for self-centering positioning on the inner wall of the flange (7), and is also fixed with a support plate (211) that slides with the clamping assembly (5). A circular disc (212) is rotatably provided on the support plate (211), and an extension seat (213) is provided on the circular disc (212). The extension seat (213) is provided with two marking pens (214) that slide left and right. When the clamping assembly (5) moves upward, the marking pens (214) are in contact with the top surface of the flange (7), and the two marking pens (214) are tangent to both sides of the positioning hole (711), and the distance between the two tangent points and the center line of the circular disc (212) is the minimum and maximum distance between the positioning hole (711) and the center line of the circular disc (212); The linkage assembly (3) includes a rotating cylinder (311) rotatably arranged at the center of the carrier plate (111) and having a hollow structure. The rotation of the rotating cylinder (311) drives one movable seat (112) to rise while the other movable seat (112) to descend. A rotating shaft (113) located in the rotating cylinder (311) and rotatably engaged with the base (1) is provided at the center of the bottom surface of the carrier plate (111). A power switching assembly (4) is provided between the rotating shaft (113) and the power source of the rotating cylinder (311). When the power switching assembly (4) selectively cooperates with the rotating cylinder (311) or the rotating shaft (113), it not only positions or releases the positioning of the carrier plate (111), but also drives the rotating cylinder (311) and the rotating shaft (113) to separate or combine.

2. The flange hole position detection device according to claim 1, characterized in that: The power switching assembly (4) includes a motor (411) mounted on a base (1), a spline shaft (412) being provided on an output shaft of the motor (411), a gear (413) being sleeved on the spline shaft (412), an extension cylinder (414) being provided on the gear (413), and a lifting cylinder (415) being rotatably provided on the extension cylinder (414), a positioning rod (416) for positioning the supporting plate (111) being provided on the lifting cylinder (415), and a docking hole for inserting the positioning rod (416) being provided on the supporting plate (111); The rotating cylinder (311) is provided with a gear 2 (312), the rotating shaft (113) is provided with a coaxial spline shaft 2 (114), the spline shaft 2 (114) is sleeved with a gear 3 (115), the upper and lower end surfaces of the gear 3 (115) are provided with an extension cylinder 2 (116) and an extension cylinder 3 (117), the extension cylinder 3 (117) is rotatably provided with a lifting cylinder 2 (118), the extension cylinder 2 (116) is provided with a latching tooth (119), the rotating cylinder (3 11) A matching seat (313) is provided on the inner wall for the latch (119) to extend into, and a linkage assembly (6) is provided between the descent and ascent of the lifting cylinder 1 (415) and the ascent and descent of the lifting cylinder 2 (118). The upward and downward sliding of the lifting cylinder 1 (415) drives the positioning rod (416) and the docking hole to engage or separate, and the upward and downward sliding of the lifting cylinder 2 (118) drives the latch (119) and the matching seat (313) to engage or separate.

3. The flange hole position detection device according to claim 2, characterized in that: The linkage assembly 2 (6) includes tooth plates (611) fixedly arranged at the opposite ends of the two lifting cylinders 1 (415) and 2 (118), and a gear 4 (612) is rotatably provided on the base (1) and meshes with the two tooth plates (611).

4. A flange hole position detection device according to any one of claims 1 to 3, characterized in that: The rotating cylinder (311) is provided with a double-grooved pulley (314), and both ends of the carrier plate (111) are rotatably provided with adjustment screws (315) that are threadedly engaged with the two movable seats (112) and have opposite spirals. The bottom surfaces of the two adjustment screws (315) are provided with pulleys (316), and a transmission belt (317) is sleeved between the two pulleys (316) and the double-grooved pulley (314). Guide rods (318) that are slidably engaged with the movable seats (112) are fixedly provided at both ends of the carrier plate (111).

5. The flange hole position detection device according to claim 1, characterized in that: The clamping assembly (5) comprises an electric cylinder (511) which is arranged on the detection frame (2) in a lifting manner. A connecting seat (512) is sleeved on the outer wall of the fixed end of the electric cylinder (511), and a lifting seat (513) is provided on the movable end. A plurality of swing arms (514) with an inverted L-shaped structure are hingedly provided on the lifting seat (513) at equal intervals along the circumferential direction. The other end of each swing arm (514) is hingedly connected to a positioning seat (515) which abuts against the inner wall of the flange (7). A plurality of support plates (516) hingedly connected to the corners of each swing arm (514) are fixedly provided on the bottom surface of the connecting seat (512). A rocker rod (517) is hingedly connected between the other end of the support plate (516) and the positioning seat (515).

6. The flange hole position detection device according to claim 5, characterized in that: The fixed end of the electric cylinder 1 (511) is slidably connected to the support disk (211) by means of a spline and a keyway, a gear ring (215) is provided on the top surface of the disk (212), a motor 2 (216) is installed on the detection frame (2), and a gear 5 (217) meshing with the gear ring (215) is provided at the output shaft end of the motor 2 (216).

7. The flange hole position detection device according to claim 5, characterized in that: The fixed end of the electric cylinder 1 (511) is fixedly provided with a connecting frame (218) that is slidably matched with the detection frame (2), and the detection frame (2) is provided with an electric cylinder 2 (219), and the movable end of the electric cylinder 2 (219) is fixedly connected to the top surface of the electric cylinder 1 (511).

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