Corrosive wear detection equipment and paddle surface detection method

Abstract

The invention relates to the technical field of roundness detection, and discloses corrosive wear detection equipment and a paddle surface detection method. According to the invention, due to synchronous expansion of the plurality of cambered surface expansion blocks, a workpiece which is not originally placed at the central position of the upper surface of the workpiece support can be gradually pushed to the central position of the upper surface of the workpiece support, and the pin shaft expansion blocks extend into a concave area of the inner wall of the to-be-detected workpiece, so that in the subsequent detection process, the detection precision is improved. Rotation of the workpiece support can drive the pin shaft adaptation mechanism and the to-be-detected workpiece fixed by the pin shaft adaptation mechanism to rotate, and meanwhile, the swing arm driving mechanism can drive the detection arm to move along the outer surface of the to-be-detected workpiece to perform corrosive wear detection on the outer surface of the to-be-detected workpiece. Therefore, through cooperation of rotation of the workpiece to be detected and movement of the detection arm driven by the swing arm driving mechanism, rapid corrosive wear detection is carried out on the outer surface of the workpiece to be detected.

Description

Technical Field

[0001] The present invention relates to the technical field of roundness detection, in particular to a corrosion and wear detection device and a method for detecting the surface of a paddle. Background Art

[0002] Corrosion and wear, as a common form of material failure in industrial production, have long plagued the operational safety and service life of various types of mechanical equipment. In heavy industrial fields such as petrochemicals, energy and electricity, and shipbuilding, equipment parts are often exposed to harsh working conditions such as high temperature, high pressure, and corrosive media for a long time. The synergistic effect of surface corrosion and wear will significantly accelerate material loss, and in severe cases may cause catastrophic accidents. Traditional manual inspection methods rely on visual inspections and handheld measuring tools by technicians. Not only do they have problems such as large subjective judgment errors and low inspection efficiency, but it is also difficult to effectively inspect complex surfaces or internal structures. With the advancement of non-destructive testing technology, automated inspection equipment based on principles such as ultrasonic waves, eddy currents, and lasers has begun to be used.

[0003] For the surface inspection needs of rotating workpieces, especially oars (propellers), when there are irregular features such as depressions and protrusions on the inner wall of the workpiece, conventional corrosion and wear detection equipment is difficult to effectively locate the workpiece and cannot adapt to the inspection needs of workpieces of different sizes, which can easily lead to errors in detection accuracy. In addition, traditional solutions usually fix the detection sensor on the rotating spindle, which leads to the problem of sensor cable entanglement, limits the continuous inspection time, reduces the inspection efficiency, and easily leads to a decrease in sensor detection accuracy. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides a corrosion and wear detection device and a method for detecting the surface of a paddle.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A corrosion wear detection device comprises: a fixed platform and a leveling support, a workpiece support is provided in the center of the upper surface of the fixed platform, a pin shaft adapter mechanism is provided in the center of the workpiece support, a swing arm drive mechanism is provided on one side of the workpiece support, and a detection arm is provided at the movable end of the swing arm drive mechanism; the pin shaft adapter mechanism comprises a plurality of arc surface extension blocks and pin-connected extension blocks, the distance between the outer end of the pin-connected extension block and the center position of the workpiece support is greater than the distance between the outer end of each arc surface extension block and the center position of the workpiece support; the process of each arc surface extension block and the pin-connected extension block synchronously expanding outward In the embodiment, each of the arc surface extension blocks can fit with the inner wall of the pin groove of the workpiece to be inspected, and the pin-connected extension block can extend into the recessed area of the inner wall of the workpiece to be inspected, so as to abut the workpiece to be inspected with the pin shaft adapter mechanism; a rotation drive mechanism is provided at the bottom end of the workpiece support, and under the drive of the rotation drive mechanism, the workpiece support can drive the pin shaft adapter mechanism and the workpiece to be inspected fixed by the pin shaft adapter mechanism to rotate; during the rotation of the workpiece to be inspected, the swing arm drive mechanism can drive the inspection arm to move along the outer surface of the workpiece to be inspected, so as to perform corrosion and wear detection on the outer surface of the workpiece to be inspected.

[0007] Preferably, a receiving groove is provided in the center of the fixed platform, the workpiece support can cover the top of the receiving groove, and a rotation drive mechanism is provided at the bottom end of the workpiece support and inside the receiving groove; a driven gear ring is provided at the bottom end of the workpiece support and inside the receiving groove, and the rotation drive mechanism includes a rotation drive motor and a reduction gear box, power transmission is provided between the rotation drive motor and the reduction gear box, and a drive gear is provided at the output end of the reduction gear box, and the drive gear is meshed with the driven gear ring.

[0008] Preferably, the pin shaft adaptation mechanism also includes a plurality of extension guide rails, which can drive each of the arc surface extension blocks and the pin-connected extension blocks to move synchronously, and keep the distance between the inner ends of each of the arc surface extension blocks and the pin-connected extension blocks and the center position of the workpiece support equal during the synchronous movement; the pin-connected extension block includes a connecting block and an extension block, and the connecting block and the extension block are elastically connected by a plurality of telescopic shafts. Under the drive of the telescopic shaft, the extension block can extend into the recessed area of the workpiece to be inspected.

[0009] Preferably, the detection arm includes a connecting arm, and a plurality of detection probes are provided on one side of the connecting arm, and each of the detection probes includes a fixed section and a movable roller; each of the detection probes can detect the vertical distance from the center of the movable roller to the connecting arm as detection data; a detection terminal is also provided on one side of the upper surface of the fixed platform, and the detection terminal can calculate and obtain the degree of corrosion and wear of the outer surface of the workpiece to be detected based on the detection data output by each of the detection probes.

[0010] Preferably, each of the detection probes also includes a detection rod and a connecting spring, the fixed section is fixed between one end away from the movable roller and the connecting arm, and the detection rod is movably arranged inside the fixed section; the movable roller is arranged at the top end of the detection rod that passes through the fixed section, and the two ends of the connecting spring are respectively fixed between the outer side surface of the detection rod and the inner wall of the fixed section.

[0011] Preferably, a trigger coil is provided at one end of the detection rod located inside the fixed section, and induction coils are provided inside the fixed section and on both sides of the trigger coil, and the induction coils are electrically connected to the detection terminal; the movable roller can be tightly attached to the workpiece under the elastic force of the connecting spring, and the detection rod can be extended and retracted inside the fixed section as the movable roller moves, and when the trigger coil moves inside the induction coil, the induction coil can output detection data to the detection terminal.

[0012] Preferably, the swing arm driving mechanism includes a lifting drive unit, a driving swing arm and a lifting telescopic rod, the detection arm is arranged at the movable end of the lifting telescopic rod, and the two ends of the driving swing arm are respectively connected to the lifting telescopic rod and the lifting drive unit; the lifting drive unit includes a lifting bracket, a lifting screw is arranged inside the lifting bracket, and a lifting drive motor is arranged at the top of the lifting bracket, the output shaft of the lifting drive motor is fixed to the lifting screw, and the lifting screw is threadedly connected to the end of the driving swing arm away from the lifting telescopic rod; the lifting drive motor can drive the driving swing arm to rise and fall under the restriction of the lifting bracket through the lifting screw.

[0013] Preferably, the driving swing arm includes a fixed mounting frame, an intermediate swing arm and a distal swing arm, the two ends of the intermediate swing arm are rotatably connected to the fixed mounting frame and the distal swing arm respectively, the intermediate swing arm can rotate around the fixed mounting frame, and the distal swing arm can rotate around one end of the intermediate swing arm away from the fixed mounting frame; with the cooperation of the intermediate swing arm and the distal swing arm, the lifting telescopic rod can drive the detection arm to move along the outer surface of the workpiece to be detected.

[0014] Preferably, the leveling support includes a supporting base, a mounting platform and a plurality of adjusting screws, the mounting platform is arranged at the top of the supporting base, and the top of each adjusting screw is fixed to the fixed platform through a universal joint; a plurality of accommodating holes are opened at the top of the mounting platform, and a lifting ring is rotatably arranged at the top of each accommodating hole, and the bottom end of each adjusting screw passes through the lifting ring and extends into the interior of the accommodating hole, and each lifting ring is rotatably connected to the corresponding adjusting screw; the fixed platform is fixed to the top of the mounting platform, and when each lifting ring is rotated respectively, the distance between the corresponding adjusting screw and the bottom end of the corresponding accommodating hole changes, so as to adjust and ensure the horizontal state of the mounting platform and the fixed platform.

[0015] A method for inspecting the surface of a paddle, using the aforementioned corrosion and wear inspection device, comprises the following steps:

[0016] Use the leveling support to pre-adjust the fixed platform to a horizontal state;

[0017] The paddle to be inspected is placed on the workpiece support, and the arc-surface extension blocks and the pin-connection extension blocks of the pin adapter mechanism are synchronously extended outwards, first driving the axis of the paddle to be inspected to be collinear with the axis of the workpiece support;

[0018] Each arc-surface extension block can fit with the inner wall of the pin groove of the oar to be tested, and the pin-connected extension block extends into the recessed area of the inner wall of the pin groove of the oar to be tested, so as to abut the workpiece to be tested against the pin shaft adapter mechanism;

[0019] Driven by the rotary drive mechanism, the workpiece support can drive the pin adapter mechanism and the workpiece to be inspected fixed by the pin adapter mechanism to rotate;

[0020] During the rotation of the workpiece to be inspected, the swing arm driving mechanism can drive the inspection arm to move along the outer surface of the workpiece to be inspected, and perform corrosion and wear inspection on the outer surface of the workpiece to be inspected.

[0021] Compared with the prior art, the present invention provides a corrosion and wear detection device and a method for detecting the surface of a paddle, which have the following beneficial effects:

[0022] 1. This corrosion and wear detection equipment, due to the synchronous expansion of multiple arc-surface extension blocks, can gradually push the workpiece that was not originally placed at the center position of the upper surface of the workpiece support to the center position of the upper surface of the workpiece support, and the pin shaft extension block extends into the recessed area of the inner wall of the workpiece to be detected, so that in the subsequent detection process, the rotation of the workpiece support can drive the pin shaft adapter mechanism and the workpiece to be detected fixed by the pin shaft adapter mechanism to rotate, and at the same time, the swing arm drive mechanism can drive the detection arm to move along the outer surface of the workpiece to be detected, and perform corrosion and wear detection on the outer surface of the workpiece to be detected, so that the outer surface of the workpiece to be detected can be quickly detected for corrosion and wear through the coordination between the rotation of the workpiece to be detected and the movement of the detection arm driven by the swing arm drive mechanism.

[0023] 2. This type of corrosion and wear detection equipment, through the cooperation of the pin extension block and the arc surface extension block, can stably position the workpiece at the center of the upper surface of the workpiece support, ensure the accuracy of the detection, and can extend into the recessed area of the workpiece to be detected through the extension block of the pin extension block. During the detection process, the workpiece to be detected and the workpiece support can be fixed by the pin extension block, so as to effectively cooperate with the movement of the detection arm to perform corrosion and wear detection on the outer surface of the workpiece to be detected.

[0024] 3. This type of corrosion and wear detection equipment coordinates the rotation of the workpiece to be detected with the movement of the detection arm driven by the swing arm drive mechanism, so that the detection probe can traverse the outer surface of the workpiece to be detected. By setting up multiple detection probes, the amount of detection data is increased to ensure the accuracy of detection. During specific use, the movable roller can be tightly attached to the workpiece under the elastic force of the connecting spring, and the detection rod can be extended and retracted inside the fixed section as the movable roller moves. When the trigger coil moves inside the induction coil, the induction coil can detect the position of the trigger coil, thereby obtaining the vertical distance between the center of the movable roller and the connecting arm as detection data, and by comparing the detection data at each position with the model data, the degree of corrosion and wear on the outer surface of the workpiece to be detected is obtained. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of a detection state of a corrosion and wear detection device of the present invention;

[0026] Figure 2 This is a schematic diagram of the three-dimensional structure of a corrosion and wear detection device of the present invention;

[0027] Figure 3 For the present invention Figure 2 A magnified view of part A;

[0028] Figure 4 This is a second schematic diagram of the three-dimensional structure of a corrosion and wear detection device of the present invention;

[0029] Figure 5 This is a schematic diagram of the three-dimensional structure of a workpiece support and a pin shaft adapter mechanism of a corrosion and wear detection device of the present invention;

[0030] Figure 6 For the present invention Figure 5 A magnified view of part B;

[0031] Figure 7 This is a schematic diagram of the three-dimensional structure of a workpiece support and a rotary drive mechanism of a corrosion and wear detection device according to the present invention;

[0032] Figure 8 This is a schematic diagram of the three-dimensional structure of a pin adapter mechanism and a detection arm of a corrosion and wear detection device according to the present invention;

[0033] Figure 9 This is a schematic diagram of the internal structure of a detection probe of a corrosion and wear detection device of the present invention.

[0034] In the figure: 1. Fixed platform; 2. Leveling support; 21. Support base; 22. Mounting platform; 221. Accommodating hole; 23. Adjusting screw; 24. Lifting ring; 3. Workpiece support; 31. Driven gear ring; 4. Pin adapter mechanism; 41. Arc surface extension block; 42. Pin extension block; 421. Connecting block; 422. Extension block; 423. Telescopic shaft; 43. Extension guide rail; 5. Swing arm drive mechanism; 51. Lifting drive unit; 511. Lifting bracket; 512. Lifting screw; 5 13. Lifting drive motor; 52. Driving swing arm; 521. Fixed mounting frame; 522. Intermediate swing arm; 523. Remote swing arm; 53. Lifting telescopic rod; 6. Detection arm; 61. Connecting arm; 62. Detection probe; 621. Fixed section; 622. Movable roller; 623. Detection rod; 624. Connecting spring; 625. Trigger coil; 626. Induction coil; 7. Rotational drive mechanism; 71. Rotational drive motor; 72. Reducer; 73. Drive gear; 8. Detection terminal. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] As introduced in the background technology, there are deficiencies in the existing technology. In order to solve the above technical problems, this application proposes a corrosion and wear detection device and a method for detecting the surface of a paddle.

[0037] Example 1:

[0038] See also Figures 1-9 A corrosion wear detection device comprises: a fixed platform 1 and a leveling support 2, a workpiece support 3 is provided in the center of the upper surface of the fixed platform 1, a pin shaft adapter mechanism 4 is provided in the center of the workpiece support 3, a swing arm driving mechanism 5 is provided on one side of the workpiece support 3, and a detection arm 6 is provided at the movable end of the swing arm driving mechanism 5; the pin shaft adapter mechanism 4 comprises a plurality of arc surface extension blocks 41 and pin extension blocks 42, the distance between the outer end of the pin extension block 42 and the center position of the workpiece support 3 is greater than the distance between the outer end of each arc surface extension block 41 and the center position of the workpiece support 3; each arc surface extension block 41 and the pin extension block 42 are synchronously extended outward During the expansion process, each arc-surface extension block 41 can fit with the inner wall of the pin groove of the workpiece to be inspected, and the pin-connected extension block 42 can extend into the recessed area of the inner wall of the workpiece to be inspected, so as to abut the workpiece to be inspected with the pin shaft adapter mechanism 4; a rotation drive mechanism 7 is provided at the bottom end of the workpiece support 3, and under the drive of the rotation drive mechanism 7, the workpiece support 3 can drive the pin shaft adapter mechanism 4 and the workpiece to be inspected fixed by the pin shaft adapter mechanism 4 to rotate; during the rotation of the workpiece to be inspected, the swing arm drive mechanism 5 can drive the detection arm 6 to move along the outer surface of the workpiece to be inspected, and perform corrosion and wear detection on the outer surface of the workpiece to be inspected.

[0039] During use, the fixed platform 1 and the workpiece support 3 are adjusted to a horizontal state in advance by the leveling support 2, and then the workpiece to be inspected (the corrosion and wear detection equipment in this embodiment can detect propellers and various workpieces with pins inside) is placed on the upper surface of the workpiece support 3. Under the action of the pin adapter mechanism 4, during the process of synchronous outward expansion of each arc surface extension block 41 and the pin-connected extension block 42, each arc surface extension block 41 can fit with the inner wall of the pin groove of the workpiece to be inspected. Due to the synchronous expansion of multiple arc surface extension blocks 41, the workpiece that was originally not placed at the center position of the upper surface of the workpiece support 3 can be gradually pushed to the center position of the upper surface of the workpiece support 3, and because the distance between the outer end of the pin-connected extension block 42 and the center position of the workpiece support 3 is greater than the distance between the outer end of each arc surface extension block 41 and the center position of the workpiece support 3, each arc surface extension block 41 can fit with the inner wall of the pin groove of the workpiece to be inspected. The pin-jointed extension block 42 can extend into the recessed area of the inner wall of the workpiece to be inspected, and abut the workpiece to be inspected against the pin adapter mechanism 4. When the pin extension block 42 is not located in the recessed area of the inner wall of the workpiece to be inspected, the workpiece support 3 can be driven to rotate by the rotary drive mechanism 7, which can cause the workpiece support 3 and the workpiece to be inspected to slide, and the pin extension block 42 can be extended into the recessed area of the inner wall of the workpiece to be inspected. In the subsequent inspection process, the rotation of the workpiece support 3 can drive the pin adapter mechanism 4 and the workpiece to be inspected fixed by the pin adapter mechanism 4 to rotate, and at the same time, the swing arm drive mechanism 5 can drive the detection arm 6 to move along the outer surface of the workpiece to be inspected, and perform corrosion and wear detection on the outer surface of the workpiece to be inspected, so that the outer surface of the workpiece to be inspected can be quickly detected for corrosion and wear through the coordination between the rotation of the workpiece to be inspected and the movement of the detection arm 6 driven by the swing arm drive mechanism 5.

[0040] Example 2:

[0041] See also Figures 1-9 The difference from the above embodiment is that a receiving groove is provided in the center of the fixed platform 1, the workpiece support 3 can cover the top of the receiving groove, and a rotation drive mechanism 7 is provided at the bottom end of the workpiece support 3 and inside the receiving groove; a driven gear ring 31 is provided at the bottom end of the workpiece support 3 and inside the receiving groove, and the rotation drive mechanism 7 includes a rotation drive motor 71 and a reduction gear 72, and power is transmitted between the rotation drive motor 71 and the reduction gear 72. A driving gear 73 is provided at the output end of the reduction gear 72, and the driving gear 73 is meshed with the driven gear ring 31.

[0042] The pin adapter mechanism 4 also includes a plurality of extension guide rails 43, which can drive each arc surface extension block 41 and the pin-connected extension block 42 to move synchronously, and keep the distance between the inner end of each arc surface extension block 41 and the pin-connected extension block 42 and the center position of the workpiece support 3 equal during the synchronous movement; the pin-connected extension block 42 includes a connecting block 421 and an extension block 422, and the connecting block 421 and the extension block 422 are elastically connected by a plurality of telescopic shafts 423. Under the drive of the telescopic shaft 423, the extension block 422 can extend into the recessed area of the workpiece to be inspected.

[0043] When in use, the arc extension block 41 can rotate freely around its own axis, and the power output by the rotary drive motor 71 can drive the driving gear 73 to rotate after being decelerated by the reduction gear box 72. Due to the gear meshing between the driving gear 73 and the driven gear ring 31, the entire workpiece support 3 and the pin shaft adapter mechanism 4 set at the top of the workpiece support 3 and the workpiece to be detected can be driven to rotate, and the pin shaft adaptation function of the adaptation pin shaft adapter mechanism 4 and the subsequent detection process of the detection arm 6 are adapted; each expansion guide rail 43 drives each arc extension block 41 and the pin-connected extension block 42 to move synchronously, keeping the distance between the inner end of each arc extension block 41 and the pin-connected extension block 42 and the center position of the workpiece support 3 equal. When the pin shaft extension block 42 is inside the recessed area of the inner wall of the workpiece to be detected, the synchronous expansion of multiple arc extension blocks 41 can move the workpiece that was not originally placed on the workpiece support 3. The workpiece at the center position of the upper surface is gradually pushed to the center position of the upper surface of the workpiece support 3, and the extension block 422 is extended into the recessed area of the inner wall of the workpiece to be detected; when the position of the pin shaft extension block 42 is not inside the recessed area of the inner wall of the workpiece to be detected, the extension block 422 of the pin extension block 42 first fits against the inner wall of the pin groove of the workpiece to be detected, and in the subsequent movement process, the telescopic shaft 423 is compressed, so that the outer end of the extension block 422 gradually maintains the same circumference as the outer end of the arc surface extension block 41, and can be pushed to the center position of the upper surface of the workpiece support 3. At this time, the workpiece support 3 is driven to rotate by the rotary drive mechanism 7, which can drive the workpiece support 3 and the workpiece to be detected to generate relative sliding (rotation). In the relative sliding process, the extension block 422 is extended into the recessed area of the workpiece to be detected by the elastic drive of the telescopic shaft 423.

[0044] Thus, through the cooperation of the pin extension block 42 and the arc surface extension block 41, the workpiece can be stably positioned at the center position of the upper surface of the workpiece support 3, thereby ensuring the accuracy of the detection, and the extension block 422 of the pin extension block 42 can be extended into the recessed area of the workpiece to be detected. During the detection process, the pin extension block 42 can be used to fix the workpiece to be detected and the workpiece support 3, so as to effectively cooperate with the movement of the detection arm 6 to perform corrosion and wear detection on the outer surface of the workpiece to be detected.

[0045] Example 3:

[0046] See also Figures 1-9 , the difference from the above embodiment is that the detection arm 6 includes a connecting arm 61, and a plurality of detection probes 62 are provided on one side of the connecting arm 61, and each detection probe 62 includes a fixed section 621 and a movable roller 622; each detection probe 62 can detect the vertical distance from the center of the movable roller 622 to the connecting arm 61 as detection data; a detection terminal 8 is also provided on one side of the upper surface of the fixed platform 1, and the detection terminal can calculate and obtain the degree of corrosion and wear of the outer surface of the workpiece to be detected based on the detection data output by each detection probe 62.

[0047] Each detection probe 62 also includes a detection rod 623 and a connecting spring 624. The fixed section 621 is fixed between one end away from the movable roller 622 and the connecting arm 61, and the detection rod 623 is movably arranged inside the fixed section 621; the movable roller 622 is arranged at the top end of the detection rod 623 that passes through the fixed section 621, and the two ends of the connecting spring 624 are respectively fixed between the outer side surface of the detection rod 623 and the inner wall of the fixed section 621.

[0048] A trigger coil 625 is provided at one end of the detection rod 623 located inside the fixed section 621, and induction coils 626 are provided inside the fixed section 621 and on both sides of the trigger coil 625. The induction coils 626 are electrically connected to the detection terminal 8; the movable roller 622 can be tightly attached to the workpiece under the elastic force of the connecting spring 624, and the detection rod 623 can be extended and retracted inside the fixed section 621 as the movable roller 622 moves. When the trigger coil 625 moves inside the induction coil 626, the induction coil 626 can output detection data to the detection terminal 8.

[0049] Before testing the corrosion and wear degree of a workpiece, it is necessary to scan intact workpieces of the same batch or unused model data of the workpiece, and compare the detection data detected by the corrosion and wear testing equipment with the model data to obtain the corrosion and wear degree of the outer surface of the workpiece to be tested;

[0050] Specifically, by coordinating the rotation of the workpiece to be inspected and the movement of the inspection arm 6 driven by the swing arm drive mechanism 5, the inspection probe 62 can traverse the outer surface of the workpiece to be inspected. By setting up multiple inspection probes 62, the amount of inspection data is increased and the accuracy of inspection is guaranteed. In specific use, the movable roller 622 can be tightly attached to the workpiece under the elastic force of the connecting spring 624, and the inspection rod 623 can be extended and retracted inside the fixed section 621 as the movable roller 622 moves. When the trigger coil 625 moves inside the induction coil 626, the induction coil 626 can detect the position of the trigger coil 625 (the electrical signal emitted by the trigger coil 625 at each position inside the induction coil 626 is different, and the required vertical distance information from the center of the movable roller 622 to the connecting arm 61 is converted). The vertical distance between the center of the movable roller 622 and the connecting arm 61 is obtained as detection data. By comparing the detection data at each position with the model data, the degree of corrosion and wear on the outer surface of the workpiece to be inspected is obtained.

[0051] Example 4:

[0052] See also Figures 1-9 The difference from the above embodiment is that the swing arm drive mechanism 5 includes a lifting drive unit 51, a driving swing arm 52 and a lifting telescopic rod 53, the detection arm 6 is arranged at the movable end of the lifting telescopic rod 53, and the two ends of the driving swing arm 52 are respectively connected to the lifting telescopic rod 53 and the lifting drive unit 51; the lifting drive unit 51 includes a lifting bracket 511, a lifting screw 512 is arranged inside the lifting bracket 511, and a lifting drive motor 513 is arranged at the top of the lifting bracket 511, the output shaft of the lifting drive motor 513 is fixed to the lifting screw 512, and the lifting screw 512 is threadedly connected to the end of the driving swing arm 52 away from the lifting telescopic rod 53; the lifting drive motor 513 can drive the driving swing arm 52 to rise and fall under the restriction of the lifting bracket 511 through the lifting screw 512.

[0053] The driving swing arm 52 includes a fixed mounting frame 521, an intermediate swing arm 522 and a distal swing arm 523. The two ends of the intermediate swing arm 522 are rotatably connected to the fixed mounting frame 521 and the distal swing arm 523 respectively. The intermediate swing arm 522 can rotate around the fixed mounting frame 521, and the distal swing arm 523 can rotate around one end of the intermediate swing arm 522 away from the fixed mounting frame 521; with the cooperation of the intermediate swing arm 522 and the distal swing arm 523, the lifting telescopic rod 53 can drive the detection arm 6 to move along the outer surface of the workpiece to be detected.

[0054] The leveling support 2 includes a supporting base 21, a mounting platform 22 and a plurality of adjusting screws 23. The mounting platform 22 is arranged at the top of the supporting base 21. The top of each adjusting screw 23 is fixed to the fixed platform 1 through a universal joint. A plurality of accommodating holes 221 are opened at the top of the mounting platform 22. A lifting ring 24 is rotatably provided at the top of each accommodating hole 221. The bottom end of each adjusting screw 23 passes through the lifting ring 24 and extends into the interior of the accommodating hole 221. Each lifting ring 24 is rotatably connected to the corresponding adjusting screw 23; the fixed platform 1 is fixed to the top of the mounting platform 22. When each lifting ring 24 is rotated respectively, the distance between the corresponding adjusting screw 23 and the bottom end of the corresponding accommodating hole 221 changes to adjust and ensure the horizontal state of the mounting platform 22 and the fixed platform 1.

[0055] Embodiment 5:

[0056] A method for inspecting the surface of a paddle, using a corrosion and wear inspection device as described in any one of Embodiments 1 to 4, comprises the following steps:

[0057] Adjust the fixed platform 1 to a horizontal state in advance by means of the leveling support 2;

[0058] The paddle to be inspected is placed on the workpiece support 3. The arc-shaped extension blocks 41 and the pin-connected extension blocks 42 of the pin adapter mechanism 4 are synchronously extended outwards, first driving the axis of the paddle to be inspected to be collinear with the axis of the workpiece support 3.

[0059] Each arc-surface extension block 41 can fit with the inner wall of the pin groove of the oar to be tested, and the pin-connection extension block 42 extends into the recessed area of the inner wall of the pin groove of the oar to be tested, so as to abut the workpiece to be tested against the pin shaft adapter mechanism 4;

[0060] Driven by the rotary drive mechanism 7, the workpiece support 3 can drive the pin adapter mechanism 4 and the workpiece to be inspected fixed by the pin adapter mechanism 4 to rotate;

[0061] During the rotation of the workpiece to be inspected, the swing arm driving mechanism 5 can drive the inspection arm 6 to move along the outer surface of the workpiece to be inspected, so as to perform corrosion and wear inspection on the outer surface of the workpiece to be inspected.

[0062] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A corrosion and wear detection device, characterized in that: include: A fixed platform and a leveling support, wherein a workpiece support is provided in the center of the upper surface of the fixed platform, a pin shaft adapter mechanism is provided in the center of the workpiece support, a swing arm drive mechanism is provided on one side of the workpiece support, and a detection arm is provided at the movable end of the swing arm drive mechanism; The pin shaft adapting mechanism includes a plurality of arc surface extension blocks and pinned extension blocks, wherein the distance between the outer end of the pinned extension block and the center position of the workpiece support is greater than the distance between the outer end of each arc surface extension block and the center position of the workpiece support; During the synchronous outward expansion of each of the arc surface extension blocks and the pin-connected extension blocks, each of the arc surface extension blocks can fit with the inner wall of the pin groove of the workpiece to be inspected, and the pin-connected extension blocks can extend into the recessed area of the inner wall of the workpiece to be inspected, thereby bringing the workpiece to be inspected into contact with the pin shaft adapter mechanism; A rotation drive mechanism is provided at the bottom end of the workpiece support. Driven by the rotation drive mechanism, the workpiece support can drive the pin adapter mechanism and the workpiece to be detected fixed by the pin adapter mechanism to rotate; During the rotation of the workpiece to be inspected, the swing arm driving mechanism can drive the inspection arm to move along the outer surface of the workpiece to be inspected, so as to perform corrosion and wear inspection on the outer surface of the workpiece to be inspected.

2. The corrosion and wear detection device according to claim 1, characterized in that: A receiving groove is provided in the center of the fixed platform, the workpiece support can cover the top of the receiving groove, and a rotation drive mechanism is provided at the bottom of the workpiece support and inside the receiving groove; A driven gear ring is provided at the bottom end of the workpiece support and inside the accommodating groove. The rotary drive mechanism includes a rotary drive motor and a reduction gear box. Power is transmitted between the rotary drive motor and the reduction gear box. A drive gear is provided at the output end of the reduction gear box. The drive gear is meshed with the driven gear ring.

3. The corrosion and wear detection device according to claim 1, characterized in that: The pin adapter mechanism further includes a plurality of expansion guide rails, which are capable of driving the arc surface expansion blocks and the pinned expansion blocks to move synchronously, and maintaining the distances between the inner ends of the arc surface expansion blocks and the pinned expansion blocks and the center position of the workpiece support equal during the synchronous movement; The pin-connected extension block includes a connecting block and an extending block. The connecting block and the extending block are elastically connected via a plurality of telescopic shafts. Driven by the telescopic shafts, the extending block can extend into the recessed area of the workpiece to be inspected.

4. The corrosion and wear detection device according to claim 1, characterized in that: The detection arm includes a connecting arm, and a plurality of detection probes are provided on one side of the connecting arm, and each of the detection probes includes a fixed section and a movable roller; Each of the detection probes is capable of detecting a vertical distance from the center of the movable roller to the connecting arm as detection data; A detection terminal is also provided on one side of the upper surface of the fixed platform. The detection terminal can calculate and obtain the degree of corrosion and wear of the outer surface of the workpiece to be detected based on the detection data output by each detection probe.

5. The corrosion and wear detection device according to claim 4, characterized in that: Each of the detection probes further comprises a detection rod and a connecting spring, wherein the fixed section is fixed between an end away from the movable roller and the connecting arm, and the detection rod is movably arranged inside the fixed section; The movable roller is arranged on the top end of one end of the detection rod passing through the fixed section, and the two ends of the connecting spring are respectively fixed between the outer side surface of the detection rod and the inner wall of the fixed section.

6. The corrosion and wear detection device according to claim 5, characterized in that: A trigger coil is provided at one end of the detection rod located inside the fixed section, and induction coils are provided inside the fixed section and on both sides of the trigger coil, and the induction coils are electrically connected to the detection terminal; The movable roller can be tightly attached to the workpiece under the elastic force of the connecting spring, the detection rod can be extended and retracted inside the fixed section as the movable roller moves, and when the trigger coil moves inside the induction coil, the induction coil can output detection data to the detection terminal.

7. The corrosion and wear detection device according to claim 1, characterized in that: The swing arm driving mechanism includes a lifting drive unit, a driving swing arm and a hoisting telescopic rod, the detection arm is arranged at the movable end of the hoisting telescopic rod, and the two ends of the driving swing arm are respectively connected to the hoisting telescopic rod and the lifting drive unit; The lifting drive unit includes a lifting bracket, a lifting screw is provided inside the lifting bracket, a lifting drive motor is provided at the top of the lifting bracket, an output shaft of the lifting drive motor is fixed to the lifting screw, and the lifting screw is threadedly connected to the end of the driving swing arm away from the lifting telescopic rod; The lifting drive motor can drive the driving swing arm to move up and down under the restriction of the lifting bracket through the lifting screw.

8. The corrosion and wear detection device according to claim 7, characterized in that: The driving swing arm includes a fixed mounting frame, an intermediate swing arm and a distal swing arm, wherein both ends of the intermediate swing arm are rotatably connected to the fixed mounting frame and the distal swing arm respectively, the intermediate swing arm can rotate around the fixed mounting frame, and the distal swing arm can rotate around an end of the intermediate swing arm away from the fixed mounting frame; With the cooperation of the middle swing arm and the distal swing arm, the hoisting telescopic rod can drive the detection arm to move along the outer surface of the workpiece to be detected.

9. The corrosion and wear detection device according to claim 1, characterized in that: The leveling support includes a support base, a mounting platform and a plurality of adjusting screws, wherein the mounting platform is arranged at the top of the support base, and the top of each adjusting screw is fixed to the fixing platform through a universal joint; A plurality of receiving holes are provided at the top of the mounting platform, and a lifting ring is rotatably provided at the top of each receiving hole. The bottom end of each adjusting screw passes through the lifting ring and extends into the receiving hole, and each lifting ring is rotatably connected to the corresponding adjusting screw. The fixed platform is fixed to the top of the mounting platform. When each lifting ring is rotated respectively, the distance between the corresponding adjusting screw and the bottom end of the corresponding accommodating hole changes to adjust and ensure the horizontal state of the mounting platform and the fixed platform.

10. A method for inspecting the surface of a paddle, using a corrosion and wear inspection device according to any one of claims 1 to 9, characterized in that: The steps include: Use the leveling support to pre-adjust the fixed platform to a horizontal state; The paddle to be inspected is placed on the workpiece support, and the arc-surface extension blocks and the pin-connection extension blocks of the pin adapter mechanism are synchronously extended outwards, first driving the axis of the paddle to be inspected to be collinear with the axis of the workpiece support; Each arc-surface extension block can fit with the inner wall of the pin groove of the oar to be tested, and the pin-connected extension block extends into the recessed area of the inner wall of the pin groove of the oar to be tested, so as to abut the workpiece to be tested against the pin shaft adapter mechanism; Driven by the rotary drive mechanism, the workpiece support can drive the pin adapter mechanism and the workpiece to be inspected fixed by the pin adapter mechanism to rotate; During the rotation of the workpiece to be inspected, the swing arm driving mechanism can drive the inspection arm to move along the outer surface of the workpiece to be inspected, and perform corrosion and wear inspection on the outer surface of the workpiece to be inspected.

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