A weld flaw detection device

Abstract

The utility model discloses a kind of weld flaw detection detection devices, belong to weld flaw detection detection field, a kind of weld flaw detection detection device, including base, the side surface of base is fixedly installed with mounting bracket, the inside of mounting bracket top is provided with detection device, the top surface of mounting bracket bottom end is fixedly installed with rotating mechanism, the top of base is rotatably installed with preloading mechanism, the inside of the four corners of preloading mechanism is rotatably installed with placing mechanism, the top of placing mechanism is provided with clamping fixed mechanism, the top surface of preloading mechanism is fixedly installed with positioning mechanism in the inside of placing mechanism, it can realize simultaneously loading four flywheels, then sequentially rotating to detection position carries out flaw detection, so it can overlap detection time and flywheel preloading time, improve detection efficiency, finally through positioning component can ensure that each flywheel enters to predetermined position and carries out predetermined trajectory movement, improve the overall degree of automation of device, further improve the detection efficiency of device.

Description

Technical Field

[0001] This utility model relates to the field of weld flaw detection, and more specifically, to a weld flaw detection device. Background Technology

[0002] Weld flaw detection is a technology that can test the weld strength of welded parts. Patent publication number CN216560413U discloses a weld flaw detection device, including a frame, a detection component mounted on top of the frame, and a moving component. A flywheel is fixed to the moving component and moves it to below the detection component. The movable end of the detection component moves to the surface of the flywheel and rotates to detect the weld seam. The detection component includes a support frame, a lifting cylinder, an ultrasonic probe, and a display screen. The lifting cylinder is located on the top of the support frame, and a telescopic cylinder is fixedly connected to the movable end of the lifting cylinder. An ultrasonic probe is fixedly connected to the end of the telescopic cylinder, and the ultrasonic probe is connected to a communication line, the end of which is connected to the display screen mounted on top of the support frame. This invention eliminates the need for manual detection, reduces labor intensity, and simplifies the method of fixing the flywheel, thus accelerating flaw detection efficiency.

[0003] While existing technologies can perform rapid flaw detection on welded parts, some problems still exist in actual use. After each flywheel is inspected, it needs to be slid out of the inspection position using a slide rail before being disassembled and then the next flywheel is loaded. This causes the inspection time to not coincide with the loading time of the next flywheel, which greatly reduces the inspection efficiency when performing batch inspection operations, thus reducing the practicality of existing weld flaw detection devices. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a weld flaw detection device that can simultaneously load four flywheels and then rotate them sequentially to the detection position for flaw detection. This allows the detection time and the pre-loading time of the flywheels to coincide, improving detection efficiency. Finally, the positioning component ensures that each flywheel enters the predetermined position and moves along the predetermined trajectory, improving the overall automation level of the device and further enhancing its detection efficiency.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A weld flaw detection device includes a base, a mounting frame fixedly installed on the side of the base, a detection device disposed inside the top of the mounting frame, a rotating mechanism fixedly installed on the top surface of the bottom of the mounting frame, a pre-assembly mechanism rotatably installed on the top of the base, a placement mechanism rotatably installed inside each of the four corners of the pre-assembly mechanism, a clamping and fixing mechanism disposed on the top of the placement mechanism, and a positioning mechanism fixedly installed on the top surface of the pre-assembly mechanism inside the placement mechanism.

[0009] Furthermore, the rotating mechanism includes a servo motor, the output shaft of which is fixedly sleeved with a connecting disc, and an arc-shaped plate is fixedly installed on the top of the connecting disc.

[0010] Furthermore, there are two arc-shaped plates, and the edges of both arc-shaped plates are set with rounded corners.

[0011] Furthermore, the pre-installation mechanism includes a cross disc and a stepper motor. The cross disc has a rotating groove 1 inside each of its four corners. A worm gear is fixedly installed at the bottom of the cross disc. A rotating groove 2 is opened at the bottom of the worm gear. A worm is fixedly sleeved on the output shaft of the stepper motor.

[0012] Furthermore, the bottom end of the limit frame is rotatably mounted on both the left and right ends of the worm gear and fixedly mounted on the top surface of the base, and the stepper motor is fixedly mounted on the top surface of the base.

[0013] Furthermore, the worm and the worm wheel mesh with each other.

[0014] Furthermore, the placement mechanism includes a placement tray, a limiting ring is fixedly installed in the middle of the placement tray, the shape of the limiting ring is adapted to the shape of the rotating groove, an arc-shaped embedding plate is fixedly installed at the bottom end of the placement tray, the shape of the arc-shaped embedding plate is adapted to the shape of the arc plate, and a positioning post is fixedly installed on one side of the top surface of the placement tray.

[0015] Furthermore, the positioning mechanism includes a fixed block, a protruding rod is movably sleeved inside the fixed block, a spring is movably sleeved on the side of the protruding rod, one end of the spring is fixedly connected to the side of the fixed block, a telescopic plate is fixedly connected to the outer end of the protruding rod, and a positioning groove is formed on the inner side of the telescopic plate, the shape of the positioning groove being adapted to the shape of the positioning post.

[0016] 3. Beneficial Effects

[0017] Compared with existing technologies, the advantages of this utility model are:

[0018] (1) This scheme utilizes a pre-installation mechanism to install four flywheels simultaneously, and then rotates them sequentially to the designated detection position to cooperate with the detection device for flaw detection. Therefore, it allows for the disassembly and assembly of other flywheels while conducting the detection, thus improving the overall flywheel detection efficiency.

[0019] (2) This scheme utilizes a rotating mechanism to automatically rotate the flywheel of the placement mechanism in one revolution. Combined with a positioning mechanism, it ensures that each placement mechanism has the same initial position when it enters the top of the rotating mechanism, which facilitates timely positioning by the staff and ensures that the placement mechanism does not rotate during the rotation of the pre-installed mechanism, thus ensuring the normal transmission operation of the testing process. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the rotating mechanism in this utility model;

[0022] Figure 3 This is a schematic diagram of the pre-assembly mechanism in this utility model;

[0023] Figure 4 This is a schematic diagram of the placement mechanism in this utility model;

[0024] Figure 5 This is a schematic diagram of the positioning mechanism in this utility model.

[0025] Explanation of the labels in the diagram:

[0026] 1. Base; 2. Mounting bracket; 3. Detection device; 4. Rotation mechanism; 5. Pre-assembly mechanism; 6. Placement mechanism; 7. Positioning mechanism; 8. Clamping and fixing mechanism; 401. Servo motor; 402. Connecting plate; 403. Arc plate; 501. Cross plate; 502. Rotation slot one; 503. Worm gear; 504. Rotation slot two; 505. Stepper motor; 506. Worm; 507. Limiting bracket; 601. Placement plate; 602. Limiting ring; 603. Positioning post; 604. Arc-shaped embedded plate; 701. Fixing block; 702. Protruding rod; 703. Spring; 704. Telescopic plate; 705. Positioning slot. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0028] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Example 1:

[0031] Please see Figure 1-5 A weld flaw detection device includes a base 1, a mounting frame 2 fixedly mounted on the side of the base 1, a detection device 3 disposed inside the top of the mounting frame 2, a rotating mechanism 4 fixedly mounted on the top surface of the bottom of the mounting frame 2, a pre-assembly mechanism 5 rotatably mounted on the top of the base 1, a placement mechanism 6 rotatably mounted inside the four corners of the pre-assembly mechanism 5, a clamping and fixing mechanism 8 disposed on the top of the placement mechanism 6, and a positioning mechanism 7 fixedly mounted on the top surface of the pre-assembly mechanism 5 inside the placement mechanism 6.

[0032] It should be noted that the detection device 3 in this application is an ultrasonic testing device for weld flaw detection, which is a mature existing technology, so it will not be described in detail in this application.

[0033] The pre-assembly mechanism 5 includes a cross disk 501 and a stepper motor 505. The cross disk 501 has a rotating groove 502 inside each of its four corners. A worm gear 503 is fixedly installed at the bottom of the cross disk 501. A rotating groove 504 is opened at the bottom of the worm gear 503. A worm 506 is fixedly sleeved on the output shaft of the stepper motor 505. The bottom of the limit frame 507 is rotatably installed at both ends of the worm 506 and fixedly installed on the top surface of the base 1. The stepper motor 505 is fixedly installed on the top surface of the base 1. The worm 506 and the worm gear 503 mesh with each other.

[0034] Specifically, the cross structure of the cross disc 501 can ensure that four placement mechanisms 6 can be placed inside the four corners, thereby performing workpiece placement operations on the four flywheels. Furthermore, when the first flywheel is being inspected, the second flywheel can be pre-installed, and so on, which greatly saves the mutual exclusion time of workpiece inspection and pre-installation, improves work efficiency, and, in conjunction with the worm gear 506 and worm wheel 503 transmission, can achieve a more precise and accurate rotation control effect.

[0035] The rotating mechanism 4 includes a servo motor 401, the output shaft of which is fixedly sleeved with a connecting plate 402. An arc-shaped plate 403 is fixedly installed at the top of the connecting plate 402. There are two arc-shaped plates 403, and the edges of both arc-shaped plates 403 are rounded. The placement mechanism 6 includes a placement plate 601, with a limiting ring 602 fixedly installed in the middle. The shape of the limiting ring 602 matches the shape of the rotating groove 502. An arc-shaped embedded plate 604 is fixedly installed at the bottom of the placement plate 601. The shape of plate 604 is adapted to the shape of arc plate 403. A positioning post 603 is fixedly installed on one side of the top surface of the placement tray 601. The positioning mechanism 7 includes a fixing block 701. A protruding rod 702 is movably sleeved inside the fixing block 701. A spring 703 is movably sleeved on the side of the protruding rod 702. One end of the spring 703 is fixedly connected to the side of the fixing block 701. A telescopic plate 704 is fixedly connected to the outer end of the protruding rod 702. A positioning groove 705 is opened on the inner side of the telescopic plate 704. The shape of the positioning groove 705 is adapted to the shape of the positioning post 603.

[0036] Specifically, the telescopic plate 704, in conjunction with the spring 703, has an adaptive telescopic function. The positioning groove 705 and the positioning post 603 are mutually compatible, but both are rounded arc surface structures. Thus, when the placement mechanism 6 is not subjected to external force, the positioning groove 705 provides a corresponding fixing force to the positioning post 603, preventing it from rotating and shifting when it rotates with the pre-installation mechanism 5. Furthermore, their positions are both set on the inner side, which facilitates the positioning check after initial installation by the staff. The purpose of both is to ensure that the arc-shaped embedded plate 604 can stably enter the interior of the arc-shaped plate 403, so as to facilitate the overall rotation of the placement mechanism 6. The limiting ring 602 can ensure that the rotation is performed in place with the rotating groove 502, thus achieving the purpose of limiting. Finally, the rounded corner structure of the two arc plates 403 can reduce the collision-type entry with the arc-shaped embedded plate 604, preventing the two planes from mutually repelling each other and affecting the connection.

[0037] The working principle of this utility model is as follows: First, three corresponding flywheels are placed directly on the top surface of the placement plate 601 and placed in conjunction with the clamping and fixing mechanism 8. It should be noted that the positioning post 603 on the side of the placement plate 601 needs to be engaged with the positioning groove 705 inside the telescopic plate 704 for positioning. After pre-assembly, the stepper motor 505 is started to drive the worm gear 506 to rotate, which in turn drives the cross plate 501 to rotate, so that the flywheel workpiece enters the detection area below the detection device 3 in sequence. When it enters the area, the arc-shaped embedding plate 604 enters the interior of the two arc plates 403. Then, the servo motor 401 is started to drive the arc plate 403 to rotate in place, which drives the arc-shaped embedding plate 604 to rotate. At this time, the positioning post 603 is forced to disengage from the interior of the positioning groove 705 by external force. Finally, it rotates one revolution and then resets. The stepper motor 505 continues to rotate, driving the tested flywheel to move out of the detection area. The staff removes the flywheel, and at the same time, the next flywheel enters the detection area for detection. The two are synchronized.

[0038] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A weld flaw detection device, comprising a base (1), characterized in that: A mounting bracket (2) is fixedly installed on the side of the base (1). A detection device (3) is provided inside the top of the mounting bracket (2). A rotating mechanism (4) is fixedly installed on the top surface of the bottom end of the mounting bracket (2). A pre-installation mechanism (5) is rotatably installed on the top of the base (1). A placement mechanism (6) is rotatably installed inside the four corners of the pre-installation mechanism (5). A clamping and fixing mechanism (8) is provided at the top of the placement mechanism (6). A positioning mechanism (7) is fixedly installed on the top surface of the pre-installation mechanism (5) inside the placement mechanism (6).

2. The weld flaw detection device according to claim 1, characterized in that: The rotating mechanism (4) includes a servo motor (401), the output shaft of which is fixedly sleeved with a connecting plate (402), and an arc plate (403) is fixedly installed on the top of the connecting plate (402).

3. The weld flaw detection device according to claim 2, characterized in that: There are two arc-shaped plates (403), and the edges of both arc-shaped plates (403) are set to rounded corners.

4. The weld flaw detection device according to claim 1, characterized in that: The pre-installation mechanism (5) includes a cross disk (501) and a stepper motor (505). The cross disk (501) has a rotating groove (502) inside each of its four corners. A worm gear (503) is fixedly installed at the bottom of the cross disk (501). A rotating groove (504) is opened at the bottom of the worm gear (503). A worm (506) is fixedly sleeved on the output shaft of the stepper motor (505).

5. The weld flaw detection device according to claim 4, characterized in that: The worm gear (506) is rotatably mounted on both the left and right ends, and the bottom end of the limit frame (507) is fixedly mounted on the top surface of the base (1). The stepper motor (505) is fixedly mounted on the top surface of the base (1).

6. The weld flaw detection device according to claim 4, characterized in that: The worm (506) and worm wheel (503) mesh with each other.

7. The weld flaw detection device according to claim 1, characterized in that: The placement mechanism (6) includes a placement tray (601), a limiting ring (602) is fixedly installed in the middle of the placement tray (601), the shape of the limiting ring (602) is adapted to the shape of the rotating groove (502), an arc-shaped embedding plate (604) is fixedly installed at the bottom end of the placement tray (601), the shape of the arc-shaped embedding plate (604) is adapted to the shape of the arc plate (403), and a positioning post (603) is fixedly installed on one side of the top surface of the placement tray (601).

8. The weld flaw detection device according to claim 1, characterized in that: The positioning mechanism (7) includes a fixed block (701), a protruding rod (702) is movably sleeved inside the fixed block (701), a spring (703) is movably sleeved on the side of the protruding rod (702), one end of the spring (703) is fixedly connected to the side of the fixed block (701), a telescopic plate (704) is fixedly connected to the outer end of the protruding rod (702), and a positioning groove (705) is provided on the inner side of the telescopic plate (704), the shape of the positioning groove (705) is adapted to the shape of the positioning post (603).

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