Three-pin frame nondestructive inspection device with adjusting structure

Abstract

The utility model relates to the technical field of automobile part detection, and discloses a tripod nondestructive inspection device with an adjusting structure, which comprises a workbench, an instrument desk is fixedly arranged on the upper surface of the workbench, and a turnover structure is arranged on the upper surface of the workbench. The overturning structure is arranged and is matched with the driving of the transmission belt to drive the transmission roller, so that the three-pin frame is limited by the guide groove and the guide rod when reaching the overturning plate along with the movement of the transmission belt, the overturning plate can overturn at a certain height while moving upwards, and the three-pin frame on the transmission belt is promoted to overturn; the surface, originally close to one side of the transmission belt, of the three-pin frame is exposed above, then the three-pin frame is subjected to magnetic powder spraying of the second spraying frame along with movement of the transmission belt and finally detected through the second magnetizing device, the final detection result is displayed on an instrument desk, and therefore a worker can master the surface defect quality of the three-pin frame workpiece.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile part detection, in particular to a non-destructive testing device for a three-pin bracket with an adjustment structure. Background Technique

[0002] The drive shaft of an automobile is an important transmission part of the automobile, and the three-pin bracket is a related supporting operation part of the drive shaft. Such workpieces play an important role in the power transmission of the automobile. Therefore, relatively strict production quality inspections are required before leaving the factory. In the prior art, batch detection of mechanical workpieces usually uses non-destructive testing devices for operation.

[0003] According to a disclosed fluorescent magnetic particle non-destructive testing device for valve cores (publication number: CN113607806A), the above application can perform circumferential and longitudinal composite magnetization on workpieces respectively, and is applicable to magnetic particle inspection of valve core parts, and can detect cracks and slag caused by materials, forging, quenching, grinding, fatigue, etc. on the surface and near the surface of parts. and other extremely fine defects.

[0004] However, in the actual use process of the above equipment, since the automatic detection of workpieces needs to be continuously driven by a conveyor belt or a transmission device, it is very difficult to completely spray the fluorescent magnetic powder of the workpiece on the side close to the conveyor belt, which will to a certain extent affect the subsequent detection data of the workpiece surface. Accuracy; In view of this, we propose a non-destructive testing device for a three-pin bracket with an adjustment structure. Content of the Utility Model

[0005] The purpose of the utility model is to provide a non-destructive testing device for a three-pin bracket with an adjustment structure to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A non-destructive testing device for a three-pin bracket with an adjustment structure, including a workbench, a driving motor is fixedly installed on the side wall of the workbench, and the output end of the driving motor is connected to a conveyor belt in a transmission manner. A magnetization device is fixedly installed on the upper surface of the workbench, a spraying rack is fixedly installed on the upper surface of the workbench, an instrument table is fixedly installed on the upper surface of the workbench, and a flipping structure is arranged on the upper surface of the workbench. The flipping structure includes:

[0007] A transmission roller is rotatably installed on the inner surface of the workbench, a disc is fixedly installed at the end of the transmission roller, a circular pin is detachably connected to the outer wall of the disc away from the workbench, the circular pin penetrates and is rotatably connected to a thin rod, and the top of the thin rod is movably installed with a hinge sleeve. A fastening bolt is threadedly connected to the inner wall of the bottom end of the hinge sleeve;

[0008] The drive plate, one end of the hinge sleeve away from the thin rod is hinged with the drive plate, the top of the drive plate is fixedly connected with an elastic telescopic rod, the upper surface of the workbench is fixedly installed with a U-shaped frame, and a guiding groove is opened on the outer wall of the U-shaped frame close to one side of the center of the workbench;

[0009] The rotating rod, the rotating rod is rotatably installed on the inner wall of the drive plate close to one side of the center of the workbench, the rotating rod penetrates and is fixedly installed with a turning plate, a volute spring is sleeved on the arc-shaped outer wall of the rotating rod, and a guiding rod is fixedly installed on the side wall of the turning plate.

[0010] Preferably, a plurality of retractable elastic contact pieces are arranged on the arc-shaped outer surface of the drive roller, so that when the drive roller and the drive belt are in transmission, even if the wrap angle between the two is small, through the transmission of the elastic contact pieces, the drive roller can still rotate due to the movement of the drive belt.

[0011] Preferably, a plurality of jacks adapted to the size of the circular pin are linearly distributed on the arc-shaped outer wall of the disc, so as to facilitate the user to change the length of the combination of the thin rod and the hinge sleeve according to the size of the three-pin frame and the feeding detection frequency.

[0012] Preferably, the guiding groove includes a vertical section and an arc section, the arc section is arranged at the top of the vertical section, and the bending direction of the arc section is close to the feeding direction of the drive belt.

[0013] Preferably, a circular hole with a diameter larger than the outer diameter of the volute spring is opened on the outer wall of the drive plate close to one side of the center of the workbench, and the two ends of the volute spring are respectively fixedly connected to the bottom inner wall of the circular hole and the arc-shaped outer wall of the rotating rod, and a limiting block is arranged on the inner wall of the circular hole to limit the maximum downward deflection angle of the turning plate.

[0014] Preferably, a blocking structure for preventing the three-pin frame from shifting or slipping is arranged on the upper surface of the turning plate, the blocking structure includes a blocking plate, a deflection groove is opened on the upper surface of the turning plate, the blocking plate is rotatably installed on the inner wall of the deflection groove, and a return spring is fixedly connected between the lower surface of the blocking plate and the bottom inner wall of the deflection groove.

[0015] Preferably, a plurality of rubber ridges are arranged on the upper surface of the blocking plate to increase the friction coefficient between the blocking plate and the three-pin frame.

[0016] Compared with the prior art, the utility model provides a non-destructive testing device for a three-pin frame with an adjusting structure, and has the following beneficial effects:

[0017] 1. The non-destructive testing device for the three-pin frame with an adjustment structure, by setting a flipping structure and cooperating with the drive belt to drive the drive roller, when the three-pin frame reaches the flipping plate with the movement of the drive belt, it is restricted by the guiding groove and the guiding rod, so that the flipping plate will flip at a certain height while moving upward, so as to cause the three-pin frame on the drive belt to flip, making the surface that was originally close to the drive belt side exposed above. Then, with the movement of the drive belt, the three-pin frame is sprayed with magnetic powder by the second set of spraying frames and finally detected by the second set of magnetization devices. The final detection results are displayed on the instrument panel, so that the staff can master the surface defect quality of the three-pin frame workpiece.

[0018] 2. The non-destructive testing device for the three-pin frame with an adjustment structure, by setting a blocking structure, when the three-pin frame approaches and gradually enters the upper surface of the flipping plate with the movement of the drive belt, due to the inclined setting of the blocking plate, the three-pin frame will not be blocked when moving upward relative to the flipping plate, and at the same time, it can better grasp the three-pin frame, avoid the slipping phenomenon on the drive belt, ensure that the flipping plate can smoothly drive the three-pin frame to flip, and thus improve the detection efficiency of the device for the three-pin frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the main structure of the present utility model;

[0020] Figure 2 Schematic sectional view of the workbench of the present utility model;

[0021] Figure 3 Schematic diagram of the U-shaped frame structure of the present utility model;

[0022] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of area A in;

[0023] Figure 5 Schematic diagram of the flipping plate structure of the present utility model;

[0024] Figure 6 Schematic diagram of the blocking plate structure of the present utility model.

[0025] In the figure: 1. Workbench; 2. Driving motor; 3. Drive belt; 4. Magnetization device; 5. Spraying frame; 6. Instrument panel; 7. Flipping structure; 71. Drive roller; 72. Disc; 73. U-shaped frame; 74. Circular pin; 75. Thin rod; 76. Hinge sleeve; 77. Tightening bolt; 78. Drive plate; 79. Elastic telescopic rod; 710. Guiding groove; 711. Rotating rod; 712. Flipping plate; 713. Volute spring; 714. Guiding rod; 8. Blocking structure; 81. Blocking plate; 82. Return spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] As Figures 1-6 shown, the present utility model provides a technical solution: a non-destructive testing device for a three-pin frame with an adjustment structure, including a workbench 1, a driving motor 2 is fixedly installed on the side wall of the workbench 1, the output end of the driving motor 2 is drivingly connected with a transmission belt 3, a magnetization device 4 is fixedly installed on the upper surface of the workbench 1, a spray rack 5 is fixedly installed on the upper surface of the workbench 1, an instrument table 6 is fixedly installed on the upper surface of the workbench 1, and a flipping structure 7 is arranged on the upper surface of the workbench 1. The flipping structure 7 includes a transmission roller 71, a disc 72, a circular pin 74, a thin rod 75, a hinge sleeve 76, a fastening bolt 77, a transmission plate 78, an elastic telescopic rod 79, a U-shaped frame 73, a guiding groove 710, a rotating rod 711, a flipping plate 712, a scroll spring 713 and a guiding rod 714.

[0027] In an embodiment of the present utility model, a transmission roller 71 is rotatably installed on the inner surface of the workbench 1, a disc 72 is fixedly installed at the end of the transmission roller 71, a circular pin 74 is detachably connected to the outer wall of the disc 72 away from the workbench 1, the circular pin 74 penetrates and is rotatably connected with a thin rod 75, the top end of the thin rod 75 is movably installed with a hinge sleeve 76, the inner wall of the bottom end of the hinge sleeve 76 is threadedly connected with a fastening bolt 77, one end of the hinge sleeve 76 away from the thin rod 75 is hinged with a transmission plate 78, the top of the transmission plate 78 is fixedly connected with an elastic telescopic rod 79, a U-shaped frame 73 is fixedly installed on the upper surface of the workbench 1, a guiding groove 710 is opened on the outer wall of the U-shaped frame 73 close to the center of the workbench 1, a rotating rod 711 is rotatably installed on the inner wall of the transmission plate 78 close to the center of the workbench 1, the rotating rod 711 penetrates and is fixedly installed with a flipping plate 712, a scroll spring 713 is sleeved on the arc-shaped outer wall of the rotating rod 711, and a guiding rod 714 is fixedly installed on the side wall of the flipping plate 712.

[0028] Furthermore, two sets of magnetization devices 4 are provided, and each set of magnetization devices 4 is respectively provided with two, and they are symmetrically arranged on the left and right sides of the workbench 1 with the vertical central axis of the workbench 1 as the axis of symmetry. At the same time, the two sets of magnetization devices 4 are arranged in a linear array on the upper surface of the workbench 1. At the same time, a circumferential magnetization assembly and a longitudinal magnetization coil are provided on the inner wall of the magnetization device 4 close to the center of the workbench 1. The circumferential magnetization assembly is connected to the circumferential transformer through a wire, and the longitudinal magnetization coil is connected to the longitudinal transformer through a wire. And both the circumferential transformer and the longitudinal transformer are arranged inside the magnetization device 4, so as to perform magnetization detection operations on the three-pin bracket passing through the front side of the magnetization device 4. And the magnetization device 4 is electrically connected to the instrument panel 6, so that the magnetization parameters of the currently detected workpiece can be displayed on the instrument panel 6, and then the surface defect degree of the three-pin bracket in the current detection area can be detected. At the same time, multiple groups of magnetic powder spray heads are provided on the lower surface of the top of the spray rack 5, and a magnetic powder interface is provided on the side of the spray rack 5, so that the magnetic powder spray heads can be connected to a magnetic powder interface pump and a liquid storage tank through a pipeline, and then continuously spray powder on the surface of the three-pin bracket to be detected on the conveyor belt 3 to complete the defect detection of the three-pin bracket. Specifically, two sets of spray racks 5 are provided, and both sets of spray racks 5 are arranged on the side of the magnetization device 4 close to the feeding end, so as to facilitate relatively accurate defect detection of both the upper and lower surfaces of the three-pin bracket of the automotive drive shaft.

[0029] Specifically, a number of retractable elastic contact pieces are provided on the arc-shaped outer surface of the driving roller 71, so that when the driving roller 71 drives the conveyor belt 3, even if the wrap angle between the two is less than 120°, through the transmission of the elastic contact pieces, the driving roller 71 can still rotate due to the movement of the conveyor belt 3. At the same time, two sets of discs 72 are provided, and the two sets of discs 72 are mirror-image arranged at both ends of the driving roller 71 to make the flipping movement of the flipping plate 712 more stable. In addition, a number of jacks adapted to the size of the circular pin 74 are linearly distributed on the arc-shaped outer wall of the disc 72, so as to facilitate the user to change the length of the combination of the thin rod 75 and the hinge sleeve 76 according to the size of the three-pin bracket and the feeding detection frequency, and then change the cycle duration of the flipping of the flipping plate 712 once, ensuring the detection accuracy and efficiency of the device for the three-pin bracket. At the same time, by tightening the fastening bolt 77 on the hinge sleeve 76, the positioning effect between the hinge sleeve 76 and the thin rod 75 can be achieved, ensuring the stability between the two during transmission. Further, a rectangular groove adapted to the size of the transmission plate 78 is opened on the inner wall of the U-shaped frame 73, and the transmission plate 78 is arranged inside the rectangular groove. As the disc 72 rotates, with the transmission of the combination of the thin rod 75 and the hinge sleeve 76, the transmission plate 78 performs a reciprocating movement in the vertical direction along the inner wall of the rectangular groove, and the top end of the elastic telescopic rod 79 is fixedly connected to the inner wall of the top of the U-shaped frame 73.

[0030] In addition, the guiding groove 710 includes a vertical section and an arc section. The arc section is arranged at the top of the vertical section, and the bending direction of the arc section is close to the feeding direction of the conveyor belt 3. Specifically, the guiding rod 714 is arranged inside the guiding groove 710. At the same time, a circular hole with a diameter larger than the outer diameter of the scroll spring 713 is formed on the outer wall of the transmission plate 78 close to the center of the workbench 1, and both ends of the scroll spring 713 are fixedly connected to the bottom inner wall of the above circular hole and the arc-shaped outer wall of the rotating rod 711 respectively. So that when the rotating rod 711 rotates along with the turning plate 712, due to the elastic force limitation of the scroll spring 713, the rotating rod 711 always has a movement tendency to drive the turning plate 712 to rotate in the reverse direction to achieve reset, so as to ensure the relative stability of the turning plate 712 during the turning movement and avoid the situation that the to-be-detected three-pin bracket is flipped up. At the same time, a limiting block is arranged on the inner wall of the circular hole to limit the maximum downward deflection angle of the turning plate 712 and prevent the turning plate 712 from deflecting downward excessively and causing insertion and movement interference to the conveyor belt 3.

[0031] In the embodiment of the present utility model, a blocking structure 8 for preventing the three-pin bracket from shifting or slipping is arranged on the upper surface of the turning plate 712. The blocking structure 8 includes a blocking plate 81. A deflection groove is formed on the upper surface of the turning plate 712, and the blocking plate 81 is rotatably installed on the inner wall of the deflection groove. A reset spring 82 is fixedly connected between the lower surface of the blocking plate 81 and the bottom inner wall of the deflection groove. Specifically, the number of the blocking structures 8 is set to be multiple groups, and the multiple groups of blocking structures 8 are evenly distributed in a linear array on the upper surface of the turning plate 712. At the same time, multiple groups of rubber ridges are arranged on the upper surface of the blocking plate 81 to increase the friction coefficient between the blocking plate 81 and the three-pin bracket. When the three-pin bracket approaches and gradually enters the upper surface of the turning plate 712 along with the movement of the conveyor belt 3, due to the inclined arrangement of the blocking plate 81, the three-pin bracket will not be blocked when moving upward relative to the turning plate 712, and at the same time, the three-pin bracket can be better grasped to avoid slipping on the conveyor belt 3, ensuring that the turning plate 712 can smoothly drive the three-pin bracket to turn, thereby improving the detection efficiency of the device for the three-pin bracket.

[0032] In the present utility model, during use, a worker places the three-pin frame workpiece to be detected on the conveyor belt 3. At this time, the drive motor 2 is started to drive the conveyor belt 3 to continuously transport the three-pin frame. Meanwhile, the spraying frame 5 is started to continuously spray magnetic powder on the three-pin frame on the conveyor belt 3. At this time, with the movement of the conveyor belt 3, the three-pin frame passes through the first magnetization device 4 on the workbench 1 to detect the defects on the upper surface of the three-pin frame. After that, with the continuous movement of the conveyor belt 3, when the three-pin frame moves below the U-shaped frame 73, the three-pin frame will gradually enter the turning plate 712 under the push of the conveyor belt 3. Due to the rotation of the transmission roller 71, with the transmission of the thin rod 75 and the hinge sleeve 76, the transmission plate 78 drives the turning plate 712 to lift upward. At this time, under the guidance and restriction of the guide groove 710 and the guide rod 714, the turning plate 712 will turn at a certain height while moving upward, so as to cause the three-pin frame on the conveyor belt 3 to turn, making the surface that was originally close to the conveyor belt 3 side exposed above. After that, with the movement of the conveyor belt 3, the three-pin frame is sprayed with magnetic powder by the second spraying frame 5 and finally detected by the second magnetization device 4. The final detection result is displayed on the instrument table 6, so that the staff can master the surface defect quality of the three-pin frame workpiece.

[0033] The above has generally described the present utility model in detail. However, based on the present utility model, some modifications or improvements can be made, which are obvious to those of ordinary skill in the technical field. Therefore, the modifications or improvements made without departing from the spirit of the present utility model are within the protection scope of the present utility model.

Claims

1. A tripod nondestructive flaw detection device with an adjustment structure, comprising a workbench (1), a drive motor (2) is fixedly mounted on the side wall of the workbench (1), a drive belt (3) is connected to the output end of the drive motor (2), a magnetizing device (4) is fixedly mounted on the upper surface of the workbench (1), a spray rack (5) is fixedly mounted on the upper surface of the workbench (1), and an instrument panel (6) is fixedly mounted on the upper surface of the workbench (1), characterized in that: The upper surface of the workbench (1) is provided with a turning structure (7), and the turning structure (7) comprises: A transmission roller (71), a transmission roller (71) is rotatably mounted on the inner surface of the workbench (1), a disc (72) is fixedly mounted on the end of the transmission roller (71), a round pin (74) is detachably connected to the outer wall of the disc (72) on the side away from the workbench (1), a thin rod (75) is passed through and rotatably connected to the round pin (74), an articulated sleeve (76) is movably mounted on the top end of the thin rod (75), and a fastening bolt (77) is threadedly connected to the inner wall of the bottom end of the articulated sleeve (76); A transmission plate (78), one end of the hinge sleeve (76) away from the thin rod (75) is hingedly connected with the transmission plate (78), the top of the transmission plate (78) is fixedly connected with an elastic telescopic rod (79), a U-shaped frame (73) is fixedly installed on the upper surface of the workbench (1), and a guide groove (710) is opened on the outer wall of the U-shaped frame (73) on the side close to the center of the workbench (1); A rotating rod (711) is rotatably mounted on the inner wall of the transmission plate (78) close to the center of the workbench (1), and a flip plate (712) is fixedly mounted on the rotating rod (711). A spiral spring (713) is sleeved on the arc-shaped outer wall of the rotating rod (711), and a guide rod (714) is fixedly mounted on the side wall of the flip plate (712).

2. A tripod nondestructive flaw detection device with an adjustment structure according to claim 1, characterized in that: A plurality of retractable elastic contact sheets are arranged on the arc-shaped outer surface of the driving roller (71).

3. The tripod nondestructive flaw detection device with an adjustment structure according to claim 1, characterized in that: A plurality of groups of insertion holes whose sizes match those of the circular plug pins (74) are distributed in a straight line on the arc-shaped outer wall of the circular disk (72).

4. The tripod nondestructive flaw detection device with an adjustment structure according to claim 1, characterized in that: The guide groove (710) comprises a vertical section and an arc section, and the arc section is arranged on the top of the vertical section.

5. The tripod nondestructive flaw detection device with an adjustment structure according to claim 1, characterized in that: A circular hole having a diameter greater than the outer diameter of the spiral spring (713) is provided on the outer wall of the transmission plate (78) close to the center of the workbench (1), and the two ends of the spiral spring (713) are respectively fixedly connected to the bottom inner wall of the circular hole and the arc-shaped outer wall of the rotating rod (711), and a limiting block is provided on the inner wall of the circular hole.

6. The tripod nondestructive flaw detection device with an adjustment structure according to claim 1, characterized in that: A blocking structure (8) is provided on the upper surface of the flip plate (712) to prevent the tripod from deflecting or slipping, and the blocking structure (8) includes a blocking plate (81). A deflection groove is provided on the upper surface of the flip plate (712), and a blocking plate (81) is rotatably mounted on the inner wall of the deflection groove. A return spring (82) is fixedly connected between the lower surface of the blocking plate (81) and the bottom inner wall of the deflection groove.

7. A tripod nondestructive flaw detection device with an adjustment structure according to claim 6, characterized in that: A plurality of groups of rubber ridges are arranged on the upper surface of the blocking plate (81).

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