A Measuring Device for Radial Dimensions of Ring-shaped Large Forgings and Its Measuring Method

Abstract

The present invention relates to the field of ring size measurement of large forgings, and provides a device and a measurement method for measuring the radial size of a ring of a large forging. The device includes a bottom plate, support legs, a feeding mechanism, a stop block, a moving mechanism, a lifting mechanism, a detection mechanism, and an interaction panel. Support legs are provided at the four corners of the bottom of the bottom plate. A feeding mechanism is provided at the middle position of the top of the bottom plate. An installation block is provided at the input end of the feeding mechanism. The other end of the feeding mechanism is provided with a stop block through a moving mechanism. A first laser measuring head for measuring the interval between the installation block and the stop block is provided at the upper end of the installation block; through the first laser measuring head and the second laser measuring head, the outer diameter of the ring can be initially detected, and then the inner diameter and roundness are detected by a measuring instrument, which not only satisfies the function of radial measurement, but also can detect the state of the side surface and roundness of the ring, thus greatly increasing the functionality and practicality of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of large forging ring size measurement, and particularly relates to a large forging ring radial size measurement device and a measurement method thereof. Background Art

[0002] In the processing of wind power flanges, due to the large size of large forging rings, it is not easy to measure them. The traditional measurement methods using micrometers and calipers cannot meet the requirements of modern production. In recent years, the coordinate measuring machines and laser measuring instruments that have entered the market only have the function of measurement, but their prices are not cheap. Therefore, the present invention proposes a large forging ring radial size measurement device and a measurement method thereof to solve the problems existing in the prior art. Summary of the Invention

[0003] In view of the above problems, the present invention proposes a large forging ring radial size measurement device and a measurement method thereof. The large forging ring radial size measurement device can initially detect the outer diameter of the ring through a first laser measurement head and a second laser measurement head, and then detect the inner diameter and roundness through a measuring device. It not only meets the function of radial measurement, but also can detect the state of the side and roundness of the ring.

[0004] To achieve the object of the present invention, the present invention is realized through the following technical solutions: A large forging ring radial size measurement device includes a bottom plate, legs, a feeding mechanism, a stop block, a moving mechanism, a lifting mechanism, a detection mechanism, and an interaction panel. Legs are provided at the four corners of the bottom of the bottom plate. A feeding mechanism is provided at the middle position of the top of the bottom plate. An installation block is provided at the input end of the feeding mechanism. The other end of the feeding mechanism is provided with a stop block through a moving mechanism. A first laser measurement head for measuring the interval between the installation block and the stop block is provided at the upper end of the installation block. A second laser measurement head for measuring the distance between the outer wall of the ring and the installation block is provided below the first laser measurement head. A detection mechanism for detecting the thickness of the ring and the roundness of the inner and outer walls of the ring is installed above the stop block through a lifting mechanism. The interaction panel is fixed on the bottom plate;

[0005] The detection mechanism includes a telescopic component, a first motor, a connecting block, a first electric telescopic rod, an L-shaped mounting plate, a second electric telescopic rod, and a measuring device. A first motor is vertically and fixedly provided at one end of the telescopic component. A connecting block is fixed to the output end of the first motor. One end of the connecting block is fixedly connected to the first electric telescopic rod. The first electric telescopic rod is fixedly connected to the upper end of the L-shaped mounting plate. Second electric telescopic rods are fixedly provided on both sides of the lower end of the L-shaped mounting plate. Measuring devices are fixed to one end of the two groups of second electric telescopic rods. The connection end of the connecting block and the first electric telescopic rod is vertically flush with the connection end of the first motor and the telescopic component;

[0006] The measuring device includes a strip-shaped mounting plate, a third laser measuring head, a fixing plate, an adjusting assembly, a measuring chamber, attaching blocks and elastic connectors. Inside the upper end of the strip-shaped mounting plate, there is a third laser measuring head. Below the third laser measuring head, there is a fixing plate fixedly connected to the strip-shaped mounting plate. Inside the fixing plate, a measuring chamber is installed through the adjusting assembly. On one side of the measuring chamber, multiple groups of attaching blocks are installed through elastic connectors. Inside the measuring chamber, there is a sensing block that cooperates with the elastic connectors. On the side of the attaching block that fits against the side wall of the ring-shaped part, there is an induction block.

[0007] The further improvement lies in that: there are at least three groups of attaching blocks, and the three groups of attaching blocks are vertically arranged in sequence to respectively measure the roundness of the upper end, middle end and lower end of the side wall of the ring-shaped part.

[0008] The further improvement lies in that: the adjusting assembly includes an adjusting air cylinder and an auxiliary spring. The lower end of the fixing plate is hinged to the lower end of the measuring chamber. Between the upper end side wall of the fixing plate and the upper end side wall of the measuring chamber, there is an adjusting air cylinder hinged. Below the adjusting air cylinder, there is an auxiliary spring, and one end of the auxiliary spring is fixedly connected to the fixing plate.

[0009] The further improvement lies in that: the elastic connector includes a spring, a damper, a sliding shaft and a probe. The damper is located inside the spring. Both the spring and the damper are fixed between the attaching block and the measuring chamber. Inside the damper, there is a sliding shaft. One end of the sliding shaft is fixedly connected to the attaching block. The other end of the sliding shaft slides through the side wall of the measuring chamber and is fixedly connected to the probe. The induction block is adapted to the probe and monitors the dynamic position of the probe.

[0010] The further improvement lies in that: the feeding mechanism includes a material plate, a chute, a slider, a threaded rod, a pushing column and a second motor. The material plate is fixed on the bottom plate. Horizontally in the middle position of the material plate, there is a chute. Inside the chute, a threaded rod is rotatably installed. Inside the chute, there is a slider. The slider is threadedly connected to the threaded rod. Above the slider, there is a pushing column for moving the ring-shaped part. On one side of the material plate, there is a second motor for driving the threaded rod to rotate.

[0011] The further improvement lies in that: the moving mechanism includes a hydraulic cylinder, a limiting groove and a limiting block. At the position of the bottom plate directly below the stop block, limiting grooves are symmetrically arranged. Inside the limiting grooves, limiting blocks are slidably installed. The limiting blocks are fixedly connected to the stop block. On the bottom plate, there is also a hydraulic cylinder for pushing the stop block to move.

[0012] The further improvement lies in that: the lifting mechanism includes a lifting cylinder and a lifting plate. At the top of the stop block, a lifting cylinder is fixed. At the top of the lifting cylinder, a lifting plate is fixed. The lifting plate is fixedly connected to the telescopic assembly.

[0013] A further improvement lies in that mounting frames are symmetrically arranged on both sides of the material plate. A plurality of rotating rollers are rotatably mounted in the mounting frames. A support block is fixed to the inner side of the lower end of the mounting block. An anti-collision strip is provided at the edge of the mounting block on the side close to the feeding end of the material plate. A driving assembly for driving the mounting frame to move is provided on the bottom plate.

[0014] A further improvement lies in that the driving assembly includes a strip-shaped groove, a strip-shaped block, a mounting groove, a bidirectional screw, a nut sleeve and a third motor. Strip-shaped blocks are symmetrically arranged at the bottom of the mounting frame. A strip-shaped groove adapted to the strip-shaped block is provided on the bottom plate. The strip-shaped block is adapted to the strip-shaped groove. A mounting groove is provided on the bottom plate. A bidirectional screw is rotatably mounted in the mounting groove. A third motor for driving the bidirectional screw to rotate is provided on one side of the bottom plate. Nut sleeves are symmetrically arranged on the bidirectional screw. The tops of the nut sleeves are respectively fixedly connected to the two mounting frames.

[0015] The measuring method using the above-mentioned measuring device for the radial dimension of the large forging ring includes the following steps;

[0016] S1. Enter the production dimension Z of the ring through the interactive panel. Then place the ring to be detected on the material plate. By starting the third motor, the third motor drives the bidirectional screw to rotate, thereby driving the nut sleeve to move, and further driving the rotating rollers on the mounting frame to move inward so that the distance between the rotating rollers on the two mounting frames is Z + 2 mm.

[0017] S2. By starting the second motor, the second motor drives the threaded rod to rotate, thereby driving the slider to move in the chute, further driving the push column to move, and thus driving the ring to move towards the stop block and fit with the stop block. At this time, a preliminary screening of the ring is carried out. When the ring can enter, the next detection work is carried out. When the ring cannot enter, it means that the dimension is unqualified.

[0018] S3. After the ring fits with the stop block, the first laser measuring head and the second laser measuring head work. Measure that the distance between the mounting block and the stop block is A, and the distance between the mounting block and the outer wall of the ring is B. Obtain the diameter of the flange as C, where C = A - B.

[0019] S4. After the distance measurement is completed, start the hydraulic cylinder to drive the block to move outward. When the block moves to the outermost side, start the telescopic assembly to drive the two groups of measuring devices to extend. Then, start the lifting cylinder to drive the two groups of measuring devices to move down a certain distance so that the bottom of the measuring device fits the top surface of the material plate. Then, start the first electric telescopic rod to drive the measuring device away from the center of the ring to move towards the outer wall of the ring, record the stroke G, and stop when the induction block works. Then, start a group of second electric telescopic rods to drive the other group of measuring devices to move towards the inner wall of the ring, record the stroke F, and stop when the induction block works. At this time, the third laser measuring head works, and then the distance between the two patch blocks on the measuring device is obtained as D. At this time, the inner diameter of the ring is calculated as E, where E = C - 2D;

[0020] S5. Then, reset half of the stroke of the moving second electric telescopic rod, specifically F / 2. At the same time, the first electric telescopic rod also extends F / 2 so that the patch block on the inner measuring device fits the inner wall of the ring again. Then, start another group of second electric telescopic rods, and its stroke is also F / 2. At the same time, make the patch block on the outer measuring device fit the outer wall of the ring. At this time, the strokes of the two groups of second electric telescopic rods are equal, both F / 2, and the actual moving stroke of the first electric telescopic rod is H, where H = G - (F / 2). And at this time, the centers of the two groups of measuring devices are located in the middle of the thickness of the ring. At this time, the distance between the centers of the two groups of measuring devices and the center of the circle is obtained as (E / 2) + (D / 2). Given the length J from the position where the connecting block is connected to the first electric telescopic rod to the central axis of the first motor, the initial length K of the first electric telescopic rod, and the distance N from the position where the upper end surface of the L-shaped mounting plate is connected to the first electric telescopic rod to the middle position of the two groups of second electric telescopic rods, the distance M that the telescopic assembly needs to move again can be calculated, so that the central axis of the first motor is located directly above the center of the circular ring. Among them, M = (E / 2) + (D / 2) - (J - H + K + N). At the same time, the first electric telescopic rod extends the distance M synchronously so that the position of the measuring device does not change, achieving the purpose of centering different-sized rings;

[0021] S6. After the first motor is located directly above the center of the ring, start the first motor. The first motor drives the measuring device to rotate, so that the patch block makes a circular motion along the side wall of the ring, and then the side wall of the ring is detected. When there are problems such as concavity and convexity, insufficient roundness, and uneven thickness on the side wall, the side wall surface pushes the patch block inward or the spring pushes the patch block outward, so that the probe moves on the sensing block, and the sensing block feeds back to the interactive panel to determine unqualified.

[0022] Through the first laser measuring head and the second laser measuring head, the outer diameter of the ring part can be preliminarily detected. Then, the inner diameter and roundness are detected by a measuring instrument. This not only meets the function of radial measurement but also can detect the state of the side wall and roundness of the ring part, thus greatly increasing the functionality and practicality of this device and further reducing the production cost. Through the design of multiple groups of patch blocks, the accuracy of measuring the side wall of the ring part by this device can be increased. When the patch blocks rotate along the side wall of the ring part, when there is an inconsistency in the thickness on the surface of the ring part, it can all be reflected by the movement of the probe on the sensing block. When there is no problem, the probe will not move on the sensing block. The use of a damper ensures the stability of the spring, preventing it from vibrating easily and further increasing the accuracy of this device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a three-dimensional schematic diagram of the present invention;

[0024] Figure 2 is a schematic diagram of the positions of the first laser measuring head and the second laser measuring head of the present invention;

[0025] Figure 3 is a schematic diagram of the working state of the present invention;

[0026] Figure 4 is a schematic diagram of the connection between the detection mechanism and the ring part of the present invention;

[0027] Figure 5 is a schematic diagram of the position of the threaded rod of the present invention;

[0028] Figure 6 is a schematic diagram of the structure of the rotating roller of the present invention;

[0029] Figure 7 is a schematic diagram of the structure of the push column of the present invention;

[0030] Figure 8 is a schematic diagram of the structure of the detection mechanism of the present invention;

[0031] Figure 9 is a disassembled schematic diagram of the measuring instrument of the present invention;

[0032] Figure 10 is a schematic diagram of the parameter of the length of each component of the detection mechanism of the present invention;

[0033] Figure 11 is a schematic diagram of the length parameter after the movement of the measuring instrument of the present invention.

[0034] Wherein: 1. Bottom plate; 2. Leg; 3. Stop block; 4. Interaction panel; 5. Mounting block; 6. First laser measuring head; 7. Second laser measuring head; 8. Telescopic assembly; 9. First motor; 10. Connecting block; 11. First electric telescopic rod; 12. L-shaped mounting plate; 13. Second electric telescopic rod; 14. Measuring device; 15. Strip-shaped mounting plate; 16. Third laser measuring head; 17. Fixed plate; 18. Measuring chamber; 19. Patch block; 20. Sensing block; 21. Induction block; 22. Adjusting air cylinder; 23. Auxiliary spring; 24. Spring; 25. Damper; 26. Sliding shaft; 27. Probe; 28. Material plate; 29. Chute; 30. Slide block; 31. Threaded rod; 32. Push column; 33. Second motor; 34. Hydraulic cylinder; 35. Limit groove; 36. Limit block; 37. Lifting cylinder; 38. Lifting plate; 39. Mounting frame; 40. Rotating roller; 41. Support block; 42. Anti-collision strip; 43. Strip-shaped groove; 44. Strip-shaped block; 45. Mounting groove; 46. Bidirectional screw; 47. Nut sleeve; 48. Third motor. Detailed implementation mode

[0035] To deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments. These embodiments are only used to explain the present invention and do not constitute a limitation to the protection scope of the present invention.

[0036] According to Figures 1-11 As shown, this embodiment provides a device for measuring the radial dimensions of a large forging ring, including a bottom plate 1, legs 2, a feeding mechanism, a stop block 3, a moving mechanism, a lifting mechanism, a detection mechanism, and an interaction panel 4. Legs 2 are provided at the four corners of the bottom of the bottom plate 1. A feeding mechanism is provided at the middle position of the top of the bottom plate 1. A mounting block 5 is provided at the input end of the feeding mechanism. The other end of the feeding mechanism is provided with a stop block 3 through the moving mechanism. A first laser measuring head 6 for measuring the interval between the mounting block 5 and the stop block 3 is provided at the upper end of the mounting block 5. A second laser measuring head 7 for measuring the distance between the outer wall of the ring and the mounting block 5 is provided below the first laser measuring head 6. A detection mechanism for detecting the thickness of the ring and the roundness of the inner and outer walls of the ring is installed above the stop block 3 through the lifting mechanism. The interaction panel 4 is fixed on the bottom plate 1;

[0037] The interaction panel 4 is a prior art and has separate storage, calculation, and human-computer interaction functions, and will not be specifically introduced in terms of structure here;

[0038] The detection mechanism includes a telescopic component 8, a first motor 9, a connecting block 10, a first electric telescopic rod 11, an L-shaped mounting plate 12, a second electric telescopic rod 13, and a measuring device 14. One end of the telescopic component 8 is vertically and fixedly provided with the first motor 9. The output end of the first motor 9 is fixed with the connecting block 10. One end of the connecting block 10 is fixedly connected to the first electric telescopic rod 11. The first electric telescopic rod 11 is fixedly connected to the upper end of the L-shaped mounting plate 12. Both sides of the lower end of the L-shaped mounting plate 12 are fixedly provided with the second electric telescopic rods 13. One end of each of the two groups of second electric telescopic rods 13 is fixed with a measuring device 14. The connecting end of the connecting block 10 and the first electric telescopic rod 11 is vertically flush with the connecting end of the first motor 9 and the telescopic component 8;

[0039] The measuring device 14 includes a strip-shaped mounting plate 15, a third laser measuring head 16, a fixing plate 17, an adjusting component, a measuring chamber 18, a sticking block 19, and an elastic connecting piece. The inner side of the upper end of the strip-shaped mounting plate 15 is provided with the third laser measuring head 16. Below the third laser measuring head 16 is a fixing plate 17 fixedly connected to the strip-shaped mounting plate 15. The inner side of the fixing plate 17 is provided with a measuring chamber 18 through the adjusting component. One side of the measuring chamber 18 is provided with multiple groups of sticking blocks 19 through the elastic connecting piece. A sensing block 20 for cooperating with the elastic connecting piece is arranged in the measuring chamber 18. An induction block 21 is arranged on the side of the sticking block 19 that fits the side wall of the ring part.

[0040] Through the first laser measuring head 6 and the second laser measuring head 7, the outer diameter of the ring part can be initially detected. Then, the inner diameter and roundness of the ring part are detected through the measuring device 14. It not only satisfies the function of radial measurement but also can detect the state of the side surface and roundness of the ring part, thus greatly increasing the functionality and practicality of the device and further reducing the production cost.

[0041] At least three groups of sticking blocks 19 are provided. The three groups of sticking blocks 19 are vertically distributed in sequence to respectively measure the roundness of the upper end, middle end, and lower end of the side wall of the ring part.

[0042] Through the design of multiple groups of sticking blocks 19, the accuracy of measuring the side wall of the ring part by the device can be increased.

[0043] The adjusting component includes an adjusting air cylinder 22 and an auxiliary spring 23. The lower end of the fixing plate 17 is hinged to the lower end of the measuring chamber 18. An adjusting air cylinder 22 is hinged between the upper end side wall of the fixing plate 17 and the upper end side wall of the measuring chamber 18. An auxiliary spring 23 is arranged below the adjusting air cylinder 22. One end of the auxiliary spring 23 is fixedly connected to the fixing plate 17.

[0044] By starting the adjusting air cylinder 22, the inclination angle of the attaching block 19 can be adjusted, so that the measuring device 14 can detect the annular part with an inclined side wall, further increasing the detection range of the device. The design of the auxiliary spring 23 facilitates the opening of the measuring chamber 18.

[0045] The elastic connecting piece includes a spring 24, a damper 25, a sliding shaft 26 and a probe 27. The damper 25 is located inside the spring 24. Both the spring 24 and the damper 25 are fixed between the attaching block 19 and the measuring chamber 18. A sliding shaft 26 is arranged inside the damper 25. One end of the sliding shaft 26 is fixedly connected with the attaching block 19, and the other end of the sliding shaft 26 slidably passes through the side wall of the measuring chamber 18 and is fixedly connected with the probe 27. The sensing block 21 is adapted to the probe 27 and monitors the position dynamics of the probe 27.

[0046] When the attaching block 19 rotates along the side wall of the annular part, when the surface of the annular part has inconsistent thickness, it can be reflected by the movement of the probe 27 on the sensing block 20. When there is no problem, the probe 27 will not move on the sensing block 20. The use of the damper 25 ensures the stability of the spring 24 and prevents it from vibrating easily, further increasing the precision of the device.

[0047] The feeding mechanism includes a material plate 28, a chute 29, a slider 30, a threaded rod 31, a pushing column 32 and a second motor 33. The material plate 28 is fixed on the bottom plate 1. A chute 29 is horizontally arranged at the middle position of the material plate 28. A threaded rod 31 is rotatably installed in the chute 29. A slider 30 is arranged in the chute 29. The slider 30 is threadedly connected with the threaded rod 31. A pushing column 32 for moving the annular part is fixed above the slider 30. A second motor 33 for driving the threaded rod 31 to rotate is arranged on one side of the material plate 28.

[0048] By starting the second motor 33, the second motor 33 drives the threaded rod 31 to rotate, thereby driving the slider 30 to move in the chute 29, further driving the pushing column 32 to move, so as to drive the annular part to move towards the stop block 3 and fit with the stop block 3. Then, by reversing the second motor 33, the pushing column 32 is moved away from the side wall of the annular part.

[0049] The moving mechanism includes a hydraulic cylinder 34, a limiting groove 35 and a limiting block 36. Limiting grooves 35 are symmetrically arranged at the positions of the bottom plate 1 directly below the stop block 3. Limiting blocks 36 are slidably installed in the limiting grooves 35. The limiting blocks 36 are fixedly connected with the stop block 3. A hydraulic cylinder 34 for pushing the stop block 3 to move is also fixed on the bottom plate 1.

[0050] By starting the hydraulic cylinder 34 to drive the stopper 3 to move, so that the stopper 3 moves to a suitable position, and then the next detection work is carried out. The setting of the limit block 36 and the limit groove 35 ensures the stability of the movement of the stopper.

[0051] The lifting mechanism includes a lifting cylinder 37 and a lifting plate 38. The top of the stopper 3 is fixed with a lifting cylinder 37. The top of the lifting cylinder 37 is fixed with a lifting plate 38. The lifting plate 38 is fixedly connected with the telescopic assembly 8.

[0052] By starting the lifting cylinder 37, the lifting plate 38 is driven to move, and then the height of the measuring device 14 is adjusted.

[0053] On both sides of the material plate 28, mounting frames 39 are symmetrically arranged. A plurality of rotating rollers 40 are rotatably installed in the mounting frames 39. A support block 41 is fixed to the inner side of the lower end of the mounting block 5. An anti-collision strip 42 is provided at the edge of the mounting block 5 on the side close to the feeding end of the material plate 28. A driving assembly for driving the mounting frame 39 to move is provided on the bottom plate 1.

[0054] Through the arrangement of the rotating rollers 40 and the support block 41, the ring part can be supported and limited assistantly. By adjusting the distance between the two rotating rollers 40, a preliminary screening of the ring part can be carried out, and then the functionality of the device is increased.

[0055] The driving assembly includes a strip-shaped groove 43, a strip-shaped block 44, a mounting groove 45, a bidirectional screw 46, a nut sleeve 47 and a third motor 48. Strip-shaped blocks 44 are symmetrically arranged at the bottom of the mounting frame 39. A strip-shaped groove 43 adapted to the strip-shaped blocks 44 is provided on the bottom plate 1. The strip-shaped blocks 44 are adapted to the strip-shaped groove 43. A mounting groove 45 is provided on the bottom plate 1. A bidirectional screw 46 is rotatably installed in the mounting groove 45. A third motor 48 for driving the bidirectional screw 46 to rotate is provided on one side of the bottom plate 1. Nut sleeves 47 are symmetrically arranged on the bidirectional screw 46. The tops of the nut sleeves 47 are respectively fixedly connected with the two mounting frames 39.

[0056] By starting the third motor 48, the third motor 48 drives the bidirectional screw 46 to rotate, thereby driving the nut sleeve 47 to move, and further driving the rotating rollers 40 on the mounting frame 39 to move.

[0057] The measurement method using the above-mentioned large forging ring part radial dimension measurement device includes the following steps;

[0058] S1. Input the production size Z of the ring through the interactive panel 4. Then, place the ring to be detected on the material plate 28. By starting the third motor 48, the third motor 48 drives the bidirectional screw 46 to rotate, thereby driving the nut sleeve 47 to move, and further driving the rotating roller 40 on the mounting frame 39 to move inward, so that the distance between the rotating rollers 40 on the two mounting frames 39 is Z + 2 mm;

[0059] S2. By starting the second motor 33, the second motor 33 drives the threaded rod 31 to rotate, thereby driving the slider 30 to move in the chute 29, further driving the push rod 32 to move, and thus driving the ring to move towards the stop block 3 and fit with the stop block 3. At this time, a preliminary screening of the ring is carried out. When the ring can enter, the next detection work is carried out. When the ring cannot enter, it means that the size is unqualified;

[0060] S3. After the ring fits with the stop block 3, the first laser measuring head 6 and the second laser measuring head 7 work. Measure the distance between the mounting block 5 and the stop block 3 as A, and the distance between the mounting block 5 and the outer wall of the ring as B, and obtain the diameter of the flange as C, where C = A - B;

[0061] S4. After the distance measurement is completed, by starting the hydraulic cylinder 34 to drive the stop block 3 to move outward. When the stop block 3 moves to the outermost side, by starting the telescopic assembly 8, the telescopic assembly 8 drives the two measuring devices 14 to extend. Then, by starting the lifting cylinder 37 to drive the two measuring devices 14 to move down a certain distance, so that the bottom of the measuring device 14 is in contact with the top surface of the material plate 28. Then, by starting the first electric telescopic rod 11 to drive the measuring device 14 away from the center of the ring to move towards the outer wall of the ring, and record the stroke G, and stop when the induction block 21 works. Then, by starting a group of second electric telescopic rods 13 to drive the other measuring device 14 to move towards the inner wall of the ring, and record the stroke F, and stop when the induction block 21 works. At this time, the third laser measuring head 16 works, and then the distance between the two patch blocks 19 on the measuring device 14 is obtained as D. At this time, the inner diameter of the ring is calculated as E, where E = C - 2D;

[0062] S5. Then, reset half of the stroke of the moving second electric telescopic rod 13, specifically F / 2. At the same time, the stroke of the first electric telescopic rod 11 also extends by F / 2, so that the sticker 19 on the inner measuring device 14 fits the ring again. Then, start another group of second electric telescopic rods 13, and its stroke is also F / 2. At the same time, make the sticker 19 on the outer measuring device 14 fit the ring. At this time, the actual moving stroke of the first electric telescopic rod 11 is H, where H = G - (F / 2). And the centers of the two groups of measuring devices 14 are located in the middle of the thickness of the ring. At this time, the distance between the centers of the two groups of measuring devices 14 and the center of the circle is (E / 2) + (D / 2). Knowing the length J from the connection position of the connecting block 10 and the first electric telescopic rod 11 to the central axis of the first motor 9, the initial length K of the first electric telescopic rod 11, and the distance N from the connection position of the upper end surface of the L-shaped mounting plate 12 and the first electric telescopic rod 11 to the middle position between the two groups of second electric telescopic rods 13, the distance M that the telescopic assembly 8 needs to move again can be calculated, so that the central axis of the first motor 9 is located directly above the center of the circle of the ring. Among them, M = (E / 2) + (D / 2) - (J - H + K + N). At the same time, the first electric telescopic rod 11 extends synchronously by the distance M, so that the position of the measuring device 14 does not change, achieving the purpose of centering rings of different sizes;

[0063] S6. When the first motor 9 is directly above the center of the circle of the ring, by starting the first motor 9, the first motor 9 drives the measuring device 14 to rotate, so that the sticker 19 makes a circular motion along the side wall of the ring, and then the side wall of the ring is detected. When there are problems such as concavity and convexity, insufficient roundness, and uneven thickness on the side wall, the side wall surface pushes the sticker 19 inward or the spring 24 pushes the sticker 19 outward, so that the probe 27 moves on the sensing block 20, and the sensing block 20 feeds back to the interaction panel 4 to determine that it is unqualified.

[0064] Finally, for the positioning of the center of the ring, during the production of this device, the position distance between the connection end face of the connection block 10 and the first electric telescopic rod 11 and the central axis of the first motor 9 is determined and recorded as J. The initial length of the first electric telescopic rod 11 is recorded as K, and the distance between the upper end face of the L-shaped mounting plate 12 and the middle position of the two second electric telescopic rods 13 is N, which is entered into the interactive panel 4. First, the telescopic assembly 8 is moved so that the two measuring devices 14 are respectively located on the inner and outer sides of the side wall of the ring. Then, the thickness of the ring is determined by starting the first electric telescopic rod 11 and the second electric telescopic rod 13. Then, through the moving distance of one of the second electric telescopic rods 13, the stroke of the other second electric telescopic rod 13 is determined, so that the strokes of the two second electric telescopic rods 13 are equal, so that the connection point of the two second electric telescopic rods 13 is located in the middle of the top surface of the ring. At this time, the distance from the center of the ring to the middle of the thickness of the ring is obtained. Also knowing the length K of the first electric telescopic rod 11 itself, the length J of the connecting plate, and the stroke H of the second electric telescopic rod 13, the distance between the central axis of the first motor 9 and the center of the ring can be calculated. Then, by driving the telescopic assembly 8 and simultaneously extending the first electric telescopic rod 11 by the same length, the central axis of the first motor 9 is aligned with the center of the ring.

[0065] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for measuring radial dimensions of large forging rings, characterized in that: It includes a bottom plate, legs, a feeding mechanism, a stopper, a moving mechanism, a lifting mechanism, a detection mechanism and an interactive panel. The four corners of the bottom of the bottom plate are provided with legs. The middle position of the top of the bottom plate is provided with a feeding mechanism. The input end of the feeding mechanism is provided with a mounting block. The other end of the feeding mechanism is provided with a stopper through a moving mechanism. The upper end of the mounting block is provided with a first laser measuring head for measuring the interval between the mounting block and the stopper. The lower part of the first laser measuring head is provided with a second laser measuring head for measuring the interval between the outer wall of the ring and the mounting block. The upper part of the stopper is provided with a detection mechanism for detecting the thickness of the ring and the roundness of the inner and outer walls of the ring through a lifting mechanism. The interactive panel is fixed on the bottom plate. The detection mechanism comprises a telescopic assembly, a first motor, a connecting block, a first electric telescopic rod, an L-shaped mounting plate, a second electric telescopic rod and a measuring device, wherein a first motor is vertically fixedly arranged at one end of the telescopic assembly, a connecting block is fixedly arranged at an output end of the first motor, one end of the connecting block is fixedly connected to the first electric telescopic rod, the first electric telescopic rod is fixedly connected to the upper end of the L-shaped mounting plate, second electric telescopic rods are fixedly arranged on both sides of the lower end of the L-shaped mounting plate, and a measuring device is fixedly arranged at one end of two groups of the second electric telescopic rods, wherein a connecting end of the connecting block and the first electric telescopic rod is vertically flush with an end face of a connecting end of the first motor and the telescopic assembly; The measuring device comprises a strip-shaped mounting plate, a third laser measuring head, a fixing plate, an adjustment component, a measuring chamber, a sticker and an elastic connecting piece. The inner side of the upper end of the strip-shaped mounting plate is provided with a third laser measuring head. A fixing plate fixedly connected to the strip-shaped mounting plate is provided below the third laser measuring head. The inner side of the fixing plate is provided with a measuring chamber via the adjustment component. One side of the measuring chamber is provided with a plurality of stickers via an elastic connecting piece. A sensor block used in conjunction with the elastic connecting piece is provided in the measuring chamber. A sensing block is provided on a side of the sticker that is in contact with the side wall of the ring. The lifting mechanism comprises a lifting cylinder and a lifting plate. The lifting cylinder is fixed on the top of the stopper, the lifting plate is fixed on the top of the lifting cylinder, and the lifting plate is fixedly connected to the telescopic assembly.

2. A large forging ring radial dimension measuring device according to claim 1, characterized in that: At least three groups of the stickers are provided, and the three groups of the stickers are vertically distributed in sequence and measure the roundness of the upper end, the middle end and the lower end of the side wall of the ring respectively.

3. A large forging ring radial dimension measuring device according to claim 1, characterized in that: The adjusting assembly includes an adjusting pneumatic cylinder and an auxiliary spring. The lower end of the fixed plate is hinged to the lower end of the measuring chamber. The adjusting pneumatic cylinder is hinged between the upper side wall of the fixed plate and the upper side wall of the measuring chamber. An auxiliary spring is provided below the adjusting pneumatic cylinder, and one end of the auxiliary spring is fixedly connected to the fixed plate.

4. A large forging ring radial dimension measuring device according to claim 1, characterized in that: The elastic connecting part includes a spring, a damper, a sliding shaft and a probe. The damper is located on the inner side of the spring. The spring and the damper are fixed between the patch and the measuring chamber. A sliding shaft is provided on the inner side of the damper. One end of the sliding shaft is fixedly connected to the patch, and the other end of the sliding shaft slides through the side wall of the measuring chamber and is fixedly connected to the probe. The sensing block is adapted to the probe and monitors the position dynamics of the probe.

5. A large forging ring radial dimension measuring device according to claim 1, characterized in that: The feeding mechanism includes a material plate, a slide groove, a slider, a threaded rod, a pushing column and a second motor. The material plate is fixed on the bottom plate. A slide groove is horizontally provided at the middle position of the material plate. A threaded rod is rotatably installed in the slide groove. A slider is provided in the slide groove. The slider is threadedly connected to the threaded rod. A pushing column for pushing the ring to move is fixed above the slider. A second motor for driving the threaded rod to rotate is provided on one side of the material plate.

6. A large forging ring radial dimension measuring device according to claim 1, characterized in that: The moving mechanism includes a hydraulic cylinder, a limit groove and a limit block. The bottom plate is symmetrically provided with a limit groove at a position directly below the stop block. The limit block is slidably installed in the limit groove. The limit block is fixedly connected to the stop block. A hydraulic cylinder for pushing the stop block to move is also fixed on the bottom plate.

7. A large forging ring radial dimension measuring device according to claim 5, characterized in that: Installation frames are symmetrically provided on both sides of the material plate, and multiple groups of rotating rollers are rotatably installed in the installation frames. A support block is fixed to the inner side of the lower end of the installation block. An anti-collision strip is provided at the edge of the installation block close to the feeding end of the material plate, and a driving component for driving the installation frame to move is provided on the bottom plate.

8. A large forging ring radial dimension measuring device according to claim 7, characterized in that: The driving assembly includes a strip groove, a strip block, a mounting groove, a bidirectional screw, a nut sleeve and a third motor. The bottom of the mounting frame is symmetrically provided with a strip block, the bottom plate is provided with a strip groove matched with the strip block, the strip block is matched with the strip groove, the bottom plate is provided with a mounting groove, a bidirectional screw is rotatably installed in the mounting groove, a third motor for driving the bidirectional screw to rotate is provided on one side of the bottom plate, nut sleeves are symmetrically provided on the bidirectional screw, and the tops of the nut sleeves are respectively fixedly connected to the two groups of mounting frames.

9. A method for measuring the radial dimension of a large forging ring according to any one of claims 1 to 8, characterized in that: The steps include: S1. Enter the production size Z of the ring through the interactive panel, then place the ring to be tested on the material plate, start the third motor, the third motor drives the bidirectional screw to rotate, thereby driving the nut sleeve to move, and further drives the rotating roller on the installation frame to move inward, so that the distance between the rotating rollers on the two sets of installation frames is Z+2mm; S2, by starting the second motor, the second motor drives the threaded rod to rotate, thereby driving the slider to move in the slide slot, further driving the push column to move, thereby driving the ring to move to the stopper and fit with the stopper, at this time, the ring is preliminarily screened, when the ring can enter, the next step of detection is carried out, when the ring cannot enter, it means that the size is unqualified; S3, after the ring and the stopper are fitted, the first laser measuring head and the second laser measuring head work to measure the distance between the mounting block and the stopper as A, the distance between the mounting block and the outer wall of the ring as B, and the diameter of the flange as C, where C=AB; S4. After the distance measurement is completed, the stopper is driven to move outward by starting the hydraulic cylinder. When the stopper moves to the outermost side, the telescopic assembly is started to drive the two sets of measuring instruments to extend. Then, the lifting cylinder is started to drive the two sets of measuring instruments to move down a certain distance so that the bottom of the measuring instrument fits with the top surface of the material plate. Then, the first electric telescopic rod is started to drive the measuring instrument away from the center of the ring to move toward the outer wall of the ring, and the stroke G is recorded. The measuring instrument stops when the induction block works. Then, a second electric telescopic rod is started to drive another set of measuring instruments to move toward the inner wall of the ring, and the stroke F is recorded. The measuring instrument stops when the induction block works. At this time, the third laser measuring head works, and the spacing between the two side blocks on the measuring instrument is obtained as D. At this time, the inner diameter of the ring is calculated as E, where E=C-2D. S5, then reset half of the stroke of the second electric telescopic rod, specifically F / 2, and at the same time, the stroke of the first electric telescopic rod is also extended by F / 2, so that the sticker on the inner measuring device is again fitted with the inner wall of the ring, and then another set of second electric telescopic rods is started, and its stroke is also F / 2, and at the same time, the sticker on the outer measuring device is fitted with the outer wall of the ring. At this time, the strokes of the two sets of second electric telescopic rods are equal, both F / 2, and the actual moving stroke of the first electric telescopic rod is H, where H=G-(F / 2), and at this time, the centers of the two sets of measuring devices are located in the middle of the thickness of the ring, and the distance between the center of the two sets of measuring devices and the center of the circle is ( E / 2)+(D / 2), when the length J from the connection position of the connecting block and the first electric telescopic rod to the central axis of the first motor, the initial length K of the first electric telescopic rod, and the distance N from the connection position of the upper end surface of the L-shaped mounting plate and the first electric telescopic rod to the middle position of the two sets of second electric telescopic rods are known, the distance M that the telescopic assembly needs to move again can be calculated, so that the central axis of the first motor is located directly above the circle of the ring, where M=(E / 2)+(D / 2)-(J-H+K+N), and the first electric telescopic rod is synchronously extended by a distance of M, so that the position of the measuring device does not change, thereby achieving the purpose of locating the center of the rings of different sizes; S6. When the first motor is located directly above the center of the ring, the first motor is started, and the first motor drives the measuring device to rotate, so that the sticker moves in a circle along the side wall of the ring, and then the side wall of the ring is detected. When there are bumps, insufficient roundness, and uneven thickness on the side wall, the side wall surface pushes the sticker to move inward or the spring pushes the sticker to move outward, so that the probe moves on the sensor block, and the sensor block feeds back to the interactive panel to determine that it is unqualified.

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