Flange plate hole site detection device

Abstract

The invention relates to the technical field of flange plate detection, and discloses a flange plate hole site detection device which comprises a base and a detection frame, a bearing plate is rotationally arranged on the base, and moving seats for stacking a plurality of flange plates are arranged at the two ends of the bearing plate in a lifting mode; a first linkage assembly is arranged between ascending of the moving seat at the low position and descending of the moving seat at the high position, a power switching assembly is arranged between power sources for driving the first linkage assembly and the bearing disc to rotate, a clamping assembly for self-centering and positioning the inner wall of the flange plate is arranged on the detection frame in a lifting mode, and a disc is rotationally arranged on the supporting disc. An extending base is arranged on the disc, and two marking pens sliding left and right are arranged on the extending base. According to the invention, a plurality of flange plates can be conveniently and rapidly detected, and a plurality of positioning holes in the flange plates can be synchronously detected during detection, so that the use efficiency of the device is improved.

Description

Technical Field

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

[0002] The flange is simply called a flange, which is just a general term. Usually, it refers to a disk-shaped metal body with several fixing holes on its periphery for connecting other things. Generally, workers will place the flange at the pipe interface, add a gasket between two flanges, and then use bolts to penetrate the evenly distributed holes for fastening.

[0003] During the processing of medium and large-sized flanges, in order to improve the internal structure and enhance the mechanical properties, the disk body is usually processed by forging first. After forging, multiple positioning holes on the circumferential direction of the disk body are processed. In order to ensure the connection accuracy of multiple positioning holes, it is necessary to detect the positions of the positioning holes on the flange. During detection, it is usually necessary to conduct spot checks on a certain proportion of flanges. When detecting multiple flanges, usually, multiple flanges to be detected are laid flat on the placement rack on the ground first, and then a measuring ruler and a tooling are used to measure and detect the positions of multiple positioning holes on each flange one by one.

[0004] In the above operation, when placing multiple flanges, the occupied area is large, and during detection, not only the process is cumbersome, but also the positions of multiple positioning holes on the flange cannot be detected synchronously, reducing the detection 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] To solve the above technical problem, the technical solution provided by the present invention is: A flange hole position detection device for detecting the positions of multiple positioning holes in the circumferential direction of a flange, including a base and a detection frame. A bearing disk is rotatably provided on the base. At both ends of the bearing disk, movable seats for stacking multiple flanges are provided in a lifting manner. One of the movable seats at both ends is in a low position, and the other is in a high position. A first linkage component is provided between the upward movement of the movable seat in the low position and the downward movement of the movable seat in the high position, and a power switching component is provided between the driving of the first linkage component and the power source for rotating the bearing disk; The lifting detection frame is provided with a clamping assembly for self-centering and positioning the inner wall of the flange, and a support disk fixedly arranged and slidably matched with the clamping assembly is also provided. A disk is rotatably arranged on the support disk, an extension seat is arranged on the disk, and two marking pens that slide left and right are arranged on the extension seat. When the clamping assembly moves upward, the marking pens are abutted against the top surface of the flange, the two marking pens are tangent to both sides of the positioning hole, and the distances from the two tangent points to the center line of the disk are the minimum and maximum distances between the positioning hole and the center line of the disk.

[0007] As an improvement, the first linkage assembly includes a rotating cylinder rotatably arranged at the central position of the bearing disk and having a hollow structure. When the rotating cylinder rotates, one moving seat rises while the other moving seat descends. A rotating shaft located inside the rotating cylinder and rotatably matched with the base is arranged at the central position of the bottom surface of the bearing disk. A power switching assembly is arranged between the power source of the rotating shaft and the rotating cylinder. When the power switching assembly selectively cooperates with the rotating cylinder or the rotating shaft, it not only positions or releases the positioning of the bearing disk, but also drives the separation or combination operation between the rotating cylinder and the rotating shaft.

[0008] As an improvement, the power switching assembly includes a first motor installed on the base. A spline shaft one is arranged on the output shaft of the first motor. A first gear is sleeved on the spline shaft one. An extension cylinder one is arranged on the first gear and a lifting cylinder one is rotatably arranged on the extension cylinder one. A positioning rod for positioning the bearing disk is arranged on the lifting cylinder one, and a docking hole for inserting the positioning rod is formed on the bearing disk. A second gear is arranged on the rotating cylinder, a coaxial spline shaft two is arranged on the rotating shaft, a third gear is sleeved on the spline shaft two. Extension cylinders two and three are arranged on the upper and lower end faces of the third gear respectively. A lifting cylinder two is rotatably arranged on the extension cylinder three. A clamping tooth is arranged on the extension cylinder two, and a matching seat for the clamping tooth to extend into is arranged on the inner wall of the rotating cylinder. A second linkage assembly is arranged between the downward and upward movement of the lifting cylinder one and the upward and downward movement of the lifting cylinder two. The up and down sliding of the lifting cylinder one drives the combination or separation operation between the positioning rod and the docking hole, and the up and down sliding of the lifting cylinder two drives the combination or separation operation between the clamping tooth and the matching seat.

[0009] As an improvement, the second linkage assembly includes toothed plates respectively fixedly arranged at the opposite ends of the two lifting cylinders one and two. A fourth gear rotatably arranged on the base and meshing with the two toothed plates is provided.

[0010] As an improvement, a double-groove pulley is arranged on the rotating cylinder. Adjusting lead screws that are rotatably arranged at both ends of the bearing disk and are in threaded cooperation with the two moving seats and have opposite helix directions are provided. Belt pulleys are arranged on the bottom surfaces of the two adjusting lead screws. Transmission belts are sleeved between the two belt pulleys and the double-groove pulley. Guide rods fixedly arranged at both ends of the bearing disk and slidably matched with the moving seats are provided.

[0011] As an improvement, the clamping assembly includes an electric cylinder I which is arranged on the detection frame in a lifting manner. A connecting seat is sleeved on the outer wall of the fixed end of the electric cylinder I, and a lifting seat is arranged at the movable end. A plurality of swing arms with an inverted L-shaped structure are hinged on the lifting seat at equal intervals in the circumferential direction. The other end of each swing arm is hinged to a positioning seat which abuts against the inner wall of the flange. A plurality of support plates which are hinged to the corners of each swing arm are fixedly arranged on the bottom surface of the connecting seat. A swing rod is jointly hinged between the other end of the support plate and the positioning seat.

[0012] As an improvement, the fixed end of the electric cylinder I is slidably connected with the support disk by means of a spline and a keyway. A gear ring is arranged on the top surface of the disk. A motor II is installed on the detection frame, and a gear V which meshes with the gear ring is arranged at the output shaft end of the motor II.

[0013] As an improvement, a connecting frame which is slidably matched with the detection frame is fixedly arranged at the fixed end of the electric cylinder I. An electric cylinder II is arranged on the detection frame, and the movable end of the electric cylinder II is fixedly connected to the top surface of the electric cylinder I.

[0014] The beneficial effects of the present invention compared with the prior art are as follows: 1. Under the action of the lifting mobile seats arranged at both ends of the rotating bearing disk, multiple flanges to be detected can be stacked and placed on the mobile seat at the lower position in sequence during the processing. After the detection is completed, the bearing disk is rotated, and then the detected flanges are received by the mobile seat at the higher position, thereby reducing the area requirement occupied during the detection of multiple flanges; 2. Under the action of the linkage assembly I arranged between the two mobile seats, when one mobile seat rises, the other mobile seat can perform a descending operation, thereby enabling convenient and quick control of the actions of the two mobile seats; 3. Under the action of the power switching assembly arranged between the power source for driving the linkage assembly I and the rotation of the bearing disk, under the action of one power source, the action of the linkage assembly I or the rotation of the bearing disk can be selectively controlled as needed, thereby reducing the requirement of the device for the power source; 4. With the cooperation of the self-centering clamping assembly, the disk, the extension seat and the marking pen, the flange can be positioned by the self-centering clamping assembly first, and the central position of the flange can be limited at the same time. Then, the disk is rotated to drive the extension seat and the marking pen to rotate. When rotating 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, thereby enabling synchronous detection of the positions of the multiple positioning holes and improving the detection efficiency of the device. Description of the Drawings

[0015] Figure 1 is the structural schematic diagram of the present invention Figure 1 .

[0016] Figure 2 is the structural schematic diagram of the present invention Figure 2 .

[0017] Figure 3 is the structural schematic diagram of the flange - less structure in the present invention.

[0018] Figure 4 is the structural diagram of the cooperation of the rotating cylinder, the rotating shaft and the power source in the present invention.

[0019] Figure 5 is the structural diagram of the power - switching component in the present invention.

[0020] Figure 6 is the present invention Figure 5 the enlarged view of part A in.

[0021] Figure 7 is the structural diagram of the cooperation of the positioning rod and the bearing plate in the present invention.

[0022] Figure 8 is the structural diagram of the first linkage component in the present invention.

[0023] Figure 9 is the structural schematic diagram of the clamping component in the present invention Figure 1 .

[0024] Figure 10 is the structural schematic diagram of the clamping component in the present invention Figure 2 .

[0025] As shown in the figure: 1. Base; 111. Bearing plate; 112. Moving seat; 113. Rotating shaft; 114. Spline shaft two; 115. Gear three; 116. Extension cylinder two; 117. Extension cylinder three; 118. Lifting cylinder two; 119. Tooth; 120. Blocking nut two; 121. Slewing bearing; 2. Detection frame; 211. Support plate; 212. Disc; 213. Extension seat; 214. Marker pen; 215. Ring gear; 216. Motor two; 217. Gear five; 218. Connecting frame; 219. Electric cylinder two; 3. First linkage component; 311. Rotating cylinder; 312. Gear two; 313. Fitting seat; 314. Double - groove pulley; 315. Adjusting screw rod; 316. Pulley; 317. Transmission belt; 318. Guide rod; 4. Power - switching component; 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 component; 511. Electric cylinder one; 512. Connecting seat; 513. Lifting seat; 514. Swing arm; 515. Positioning seat; 516. Support plate; 517. Swing rod; 6. Second linkage component; 611. Rack; 612. Gear four; 7. Flange; 711. Positioning hole. Detailed implementation manners

[0026] The present invention will be further described in detail below with reference to the accompanying drawings.

[0027] Combined with the attached Figure 1 and the attached Figure 2 and the attached Figure 3 As shown, a flange hole position detection device is used to detect the positions of a plurality of positioning holes 711 in the circumferential direction of the flange 7, and includes a base 1 and a detection frame 2. The base 1 is mobile. A bearing plate 111 is rotatably provided on the base 1. To ensure the stability of the bearing plate 111 during rotation, the bottom surface of the bearing plate 111 is fixedly connected to the inner ring of a slewing bearing 121, and the outer ring of the slewing bearing 121 is fixedly connected to the base 1 through a support rod. Symmetrically arranged on both ends of the bearing plate 111 are lifting movable seats 112 for stacking a plurality of 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 first linkage assembly 3 is provided between the upward movement of the movable seat 112 in the low position and the downward movement of the movable seat 112 in the high position, and a power switching assembly 4 is provided between the driving first linkage assembly 3 and the power source for rotating the bearing plate 111. A clamping assembly 5 for self-centering and positioning the inner wall of the flange 7 is provided on the detection frame 2 in a lifting manner. A detection assembly for detecting a 180-degree rotation of the bearing plate 111 is provided on the base 1. A support plate 211 slidably engaged with the clamping assembly 5 is also fixedly provided on the detection frame 2. A disc 212 is rotatably provided on the support plate 211. An extension seat 213 is provided on the disc 212. Two marking pens 214 that slide left and right are provided on the extension seat 213. When the clamping assembly 5 moves upward, the marking pens 214 are brought into contact with the top surface of the flange 7. The two marking pens 214 are tangent to both sides of the positioning hole 711, and the distances from the two tangent points to the center line of the disc 212 are the minimum and maximum distances between the positioning hole 711 and the center line of the disc 212.

[0028] With the above structure, first, a plurality of flanges to be detected are sequentially stacked on the moving seat 112 at the lower position. Then, the base 1 is moved to the detection frame 2 so that the flange 7 corresponds to the clamping assembly 5. Next, the power switching assembly 4 is cooperated with the first linkage assembly 3. By controlling the first linkage assembly 3, the moving seat 112 at the lower position moves upward, and the moving seat 112 at the higher position moves downward. The topmost flange 7 after stacking is sleeved on the clamping assembly 5, and the action of the clamping assembly 5 is controlled to perform self-centering positioning on the topmost flange 7, so that the central position of the flange 7 can be limited. Then, the clamping assembly 5 is controlled to move upward, and at the same time, the positioned flange 7 is driven to move upward. In this way, not only the top surface of the flange 7 abuts against the marking pen 214, but also the independence of the flange 7 can be ensured, thus avoiding the interference phenomenon of the flange 7 during the rotation of the bearing plate 111. Then, the rotation of the disc 212 and the marking pen 214 is controlled. When the marking pen 214 rotates one circle, two concentric circles will be formed at both ends of the plurality of positioning holes 711 on the flange 7. Furthermore, it is judged whether each positioning hole 711 is within the two concentric circles, so that the positions of the plurality of positioning holes 711 can be synchronously detected, improving the detection efficiency of the device; After the detection is completed, the power switching assembly 4 is cooperated with the bearing plate 111, and then the bearing plate 111 is driven to rotate 180 degrees, so that the clamping assembly 5 corresponds to another moving seat 112, and the detected flange 7 is placed through this moving seat 112. By analogy, a plurality of stacked flanges 7 can be effectively detected one by one.

[0029] Combined with attached Figure 3 、attached Figure 4 、attached Figure 5 、attached Figure 6 、attached Figure 7 and attached Figure 8 As shown in the figure, the first linkage assembly 3 includes a rotating cylinder 311 which is rotatably arranged at the center position of the bearing plate 111 and has a hollow structure. The rotation of the rotating cylinder 311 drives one moving seat 112 to rise while the other moving seat 112 descends. A rotating shaft 113 which is arranged at the center position of the bottom surface of the bearing plate 111 and is rotatably matched with the base 1 is arranged inside the rotating cylinder 311. A power switching assembly 4 is arranged between the power sources of the rotating shaft 113 and the rotating cylinder 311; When the power switching assembly 4 is selectively cooperated with the rotating cylinder 311 or the rotating shaft 113, not only the bearing plate 111 is positioned or the positioning is released, but also the separation or combination operation between the rotating cylinder 311 and the rotating shaft 113 is driven; 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 matched with the spline shaft 412 is provided on the gear 413, 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 for limiting the lifting cylinder 415 is threaded on the external thread, a positioning rod 416 for positioning the bearing plate 111 is fixedly provided on the outer wall of the lifting cylinder 415, and a docking hole for inserting the positioning rod 416 is provided on the bearing plate 111, and an electric push rod 418 hinged to the lifting cylinder 415 is provided on the base 1; 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 match 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 lifting cylinder is threaded on the external thread A blocking nut 120 is limited by the second 118, a latch tooth 119 is provided on the extension tube 116, a matching seat 313 for the latch tooth 119 to extend into is provided on the inner wall of the rotating tube 311, and a linkage component 26 is provided between the descent and ascent of the lifting tube 1 415 and the ascent and descent of the lifting tube 2 118, the up and down sliding of the lifting tube 1 415 drives the positioning rod 416 and the docking hole to engage or separate, and the up and down sliding of the lifting tube 2 118 drives the latch tooth 119 and the matching seat 313 to engage or separate.

[0030] The linkage assembly 13 and the power switching assembly 4 are separated and the bearing plate 111 and the power switching assembly 4 cooperate with each other to control the electric push rod 418 to contract, 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 bearing plate 111 is released. When the lifting cylinder 1 415 slides downward, the lifting cylinder 1 is driven by the linkage assembly 2 6. The second gear 118 slides upward, driving the third gear 115 to slide upward. During the process of gear 1 413 sliding downward and gear 3 115 sliding upward, the two are meshed, starting the motor 1 411, driving the gear 1 413 to rotate, and then driving the gear 3 115 and the rotating shaft 113 to rotate, and then driving the supporting plate 111 to rotate. The upward sliding of the lifting cylinder 118 also drives the locking tooth 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.

[0031] Combined withFigure 4 As shown, the second linkage assembly 6 includes toothed plates 611 respectively and fixedly arranged at the opposite ends of two first lifting cylinders 415 and the second lifting cylinder 118. A groove body for the two toothed plates 611 to extend into is formed on the base 1, and the two toothed plates 611 are in sliding fit with the inner wall of the groove body. A fourth gear 612 meshing with the two toothed plates 611 is rotatably arranged on the base 1.

[0032] The working principle of the second linkage assembly 6 is as follows. When the first lifting cylinder 415 descends, it drives the toothed plate 611 connected thereto to slide downward, then drives the fourth gear 612 to rotate, and further drives the other toothed plate 611 to slide upward, while driving the second lifting cylinder 118 to perform an upward sliding operation.

[0033] Combined with the attached Figure 8 As shown, a double-groove pulley 314 is arranged on the rotating cylinder 311. Adjusting lead screws 315 that are rotatably arranged at both ends of the bearing plate 111 and are in threaded fit with the two moving seats 112 and have opposite helix directions are provided. Belt pulleys 316 are arranged on the bottom surfaces of the two adjusting lead screws 315. Transmission belts 317 are sleeved between the two belt pulleys 316 and the double-groove pulley 314. Guide rods 318 that are fixedly arranged at both ends of the bearing plate 111 and are in sliding fit with the moving seats 112 are provided, and the diameter of the guide rods 318 is smaller than the diameter of the positioning holes 711. In this way, the positioning holes 711 at both ends of the flange 7 can be sleeved on the guide rods 318, playing a certain limiting role in the position of the flange 7.

[0034] The working principle of the two moving seats 112 ascending and descending is as follows. When the rotating cylinder 311 rotates, it drives the double-groove pulley 314 to rotate. Under the action of the transmission belt 317, it drives the belt pulleys 316 at both ends to rotate, and then drives the adjusting lead screws 315 with opposite helix directions at both ends to rotate. Under the action of the positive and reverse thread forces, it drives the lower moving seat 112 to move upward and the higher moving seat 112 to move downward. The upward-moving moving seat 112 can perform a jacking operation on the stacked flanges 7, and the downward-moving moving seat 112 can perform a placing operation on the inspected flanges 7.

[0035] Combined with the attached Figure 9 and the attached Figure 10As shown in the figure, the clamping assembly 5 includes an electric cylinder 511 which is arranged on the detection frame 2 in a lifting manner. 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 arranged at the movable end. A plurality of swing arms 514 with an inverted L-shaped structure are hinged on the lifting seat 513 at equal intervals in the circumferential direction. The other end of each swing arm 514 is hinged to a positioning seat 515 which abuts against the inner wall of the flange 7. The ends of the plurality of positioning seats 515 which abut against the inner wall of the flange 7 are of an arc structure. A plurality of support plates 516 which are hinged to the corners of each swing arm 514 are fixedly arranged 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 swing rod 517 is jointly hinged between the other end of the support plate 516 and the positioning seat 515.

[0036] The working principle of the clamping assembly 5 is as follows. When the uppermost flange 7 is sleeved on the clamping assembly 5, control the electric cylinder 511 to extend, drive the lifting seat 513 to slide downward, then drive the plurality of swing arms 514 hinged thereto to swing, and then drive the plurality of positioning seats 515 to swing towards the inner wall of the flange 7 to perform a self-centering positioning operation on the flange 7.

[0037] In order to ensure the concentricity of the electric cylinder 511 and the support plate 211, the fixed end of the electric cylinder 511 is slidably connected to the support plate 211 by means of a spline and a keyway. A toothed ring 215 concentric with it is fixedly arranged on the top surface of the disc 212. A motor 216 is installed on the detection frame 2, and a gear 217 meshing with the toothed ring 215 is arranged at the output shaft end of the motor 216. Start the motor 216 to drive the gear 217 to rotate, and then drive the toothed ring 215 and the disc 212 to rotate.

[0038] A connecting frame 218 which is slidably matched with the detection frame 2 is fixedly arranged at the fixed end of the electric cylinder 511. An electric cylinder 219 is arranged on the detection frame 2, and the movable end of the electric cylinder 219 is fixedly connected to the top surface of the electric cylinder 511.

[0039] When the present invention is specifically implemented, first stack a plurality of flanges 7 to be detected on the moving seat 112 at a low position, then move the base 1 to the detection frame 2 and make the flange 7 correspond to the clamping assembly 5. First, cooperate the power switching assembly 4 with the linkage assembly 3. Through the action of the linkage assembly 3, drive the moving seat 112 and the flange 7 to be lifted upward, then position the uppermost flange 7 through the clamping assembly 5, and then control the clamping assembly 5 and the flange 7 to slide upward so that the flange 7 abuts against the two marking pens 214. Control the disc 212 and the two marking pens 214 to rotate so as to form two concentric circles at both ends of the positioning hole 711, thereby effectively detecting the positions of the plurality of positioning holes 711. After the detection is completed, the power switching component 4 and the carrier plate 111 are coordinated to control the carrier plate 111 to rotate 180 degrees, so that the other moving seat 112 rotates to the position corresponding to the clamping component 5 and performs the material receiving operation on the detected flange.

[0040] The above describes the present invention and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and without departing from the purpose of the present invention creation, without creative design, the structural manners and embodiments similar to the technical solution should all fall within the protection scope 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: It includes a base (1) and a detection frame (2). A bearing disc (111) is rotatably arranged on the base (1). At both ends of the bearing disc (111), moving seats (112) for stacking multiple flange discs (7) are arranged in a lifting manner. One of the moving seats (112) at both ends is in a low position, and the other is in a high position. A first linkage assembly (3) is arranged between the upward movement of the moving seat (112) in the low position and the downward movement of the moving seat (112) in the high position. And a power switching assembly (4) is arranged between the driving first linkage assembly (3) and the power source for driving the bearing disc (111) to rotate; A clamping assembly (5) for self-centering and positioning the inner wall of the flange disc (7) is arranged in a lifting manner on the detection frame (2). A support disc (211) slidably matched with the clamping assembly (5) is also fixedly arranged. A disc (212) is rotatably arranged on the support disc (211). An extension seat (213) is arranged on the disc (212). Two marking pens (214) sliding left and right are arranged on the extension seat (213). When the clamping assembly (5) moves upward, the marking pens (214) are in contact with the top surface of the flange disc (7). The two marking pens (214) are tangent to both sides of the positioning hole (711), and the distances from the two tangent points to the center line of the disc (212) are the minimum and maximum distances between the positioning hole (711) and the center line of the disc (212).

2. The flange hole position detection device according to claim 1, characterized in that: The first linkage assembly (3) includes a rotating cylinder (311) rotatably arranged at the center position of the bearing disc (111) and having a hollow structure. The rotation of the rotating cylinder (311) drives one moving seat (112) to rise while the other moving seat (112) descends. A rotating shaft (113) located inside the rotating cylinder (311) and rotatably matched with the base (1) is arranged at the center position of the bottom surface of the bearing disc (111). A power switching assembly (4) is arranged 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 bearing disc (111), but also drives the separation or combination operation between the rotating cylinder (311) and the rotating shaft (113).

3. The flange hole position detection device according to claim 2, characterized in that: The power switching assembly (4) includes a first motor (411) installed on the base (1). A spline shaft one (412) is arranged on the output shaft of the first motor (411). A first gear (413) is sleeved on the spline shaft one (412). An extension cylinder one (414) is arranged on the first gear (413), and a lifting cylinder one (415) is rotatably arranged on the extension cylinder one (414). A positioning rod (416) for positioning the bearing disc (111) is arranged on the lifting cylinder one (415), and a docking hole for inserting the positioning rod (416) is formed on the bearing disc (111); A second gear (312) is provided on the rotating cylinder (311). A spline shaft two (114) coaxial with the rotating shaft (113) is provided on the rotating shaft (113). A third gear (115) is sleeved on the spline shaft two (114). Extension cylinders two (116) and extension cylinders three (117) are provided on the upper and lower end faces of the third gear (115). A second lifting cylinder (118) is rotatably provided on the extension cylinder three (117). A clamping tooth (119) is provided on the extension cylinder two (116). A mating seat (313) for the clamping tooth (119) to extend into is provided on the inner wall of the rotating cylinder (311). A second linkage assembly (6) is provided between the downward and upward movement of the first lifting cylinder (415) and the upward and downward movement of the second lifting cylinder (118). The up and down sliding of the first lifting cylinder (415) drives the positioning rod (416) and the docking hole to be combined or separated. The up and down sliding of the second lifting cylinder (118) drives the clamping tooth (119) and the mating seat (313) to be combined or separated.

4. The flange hole position detection device according to claim 3, characterized in that: The second linkage assembly (6) includes toothed plates (611) respectively and fixedly provided at the opposite end parts of the two first lifting cylinders (415) and the second lifting cylinder (118). A fourth gear (612) meshing with the two toothed plates (611) together is rotatably provided on the base (1).

5. A flange hole position detection device according to any one of claims 2-4, characterized in that: A double-groove pulley (314) is provided on the rotating cylinder (311). Adjusting lead screws (315) which are rotatably provided at both ends of the bearing disc (111) and are in threaded fit with the two moving seats (112) and have opposite helix directions are provided. Belt pulleys (316) are provided on the bottom surfaces of the two adjusting lead screws (315). Transmission belts (317) are sleeved between the two belt pulleys (316) and the double-groove pulley (314). Guide rods (318) which are fixedly provided at both ends of the bearing disc (111) and are in sliding fit with the moving seats (112) are provided.

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

7. The flange hole position detection device according to claim 6, characterized in that: The fixed end of the electric cylinder one (511) is slidably connected with the support disc (211) by means of a spline and a key groove. A toothed ring (215) is provided on the top surface of the disc (212). A second motor (216) is installed on the detection frame (2). And a fifth gear (217) meshing with the toothed ring (215) is provided at the output shaft end of the second motor (216).

8. A flange hole position detecting device according to claim 6, characterized in that: A connecting frame (218) which is fixedly provided at the fixed end of the electric cylinder one (511) and is in sliding fit with the detection frame (2) is provided. An electric cylinder two (219) is provided on the detection frame (2). The movable end of the electric cylinder two (219) is fixedly connected to the top surface of the electric cylinder one (511).

Images