Ultrasonic automatic detection device suitable for welding seam of pressure vessel

Abstract

The utility model discloses an ultrasonic automatic detection device suitable for a pressure vessel welding seam, which comprises a base, an ultrasonic detection probe, a positioning mechanism and a rotating mechanism, the positioning mechanism is used for positioning and aligning a pressure vessel to be detected, and the rotating mechanism is used for driving the pressure vessel to rotate at a constant speed. According to the utility model, one end of the pressure container to be detected is placed in the inner cavity of the fixed seat, and the plurality of supporting blocks are extruded downwards, so that the outer wall of one end of the pressure container and the inclined surface of the inner wall of the fixed seat are extruded, the pressure container is pushed, and the axis of the pressure container and the axis of the fixed seat are located on the same vertical line; and then the screw rod is rotated to drive the extrusion block to vertically move downwards, the lower surface of the extrusion block extrudes the upper surface of the other end of the pressure container and extrudes and fixes the pressure container, it is guaranteed that the rotating disc drives the pressure container to stably rotate, and the welding seam of the pressure container is conveniently detected.

Description

Technical Field

[0001] The utility model relates to the field of pressure vessel welding, and particularly relates to an ultrasonic automatic detection device suitable for pressure vessel welds. Background Technique

[0002] A pressure vessel is a sealed container used to hold gases or liquids and can work safely under a certain pressure. It is widely used in the fields of petrochemical industry, medical and health, national defense security, and scientific research.

[0003] During the production process of pressure vessels, welding operations are usually required on the pressure vessels to form welds at one end. To ensure the tightness of the pressure vessels, the weld positions of the pressure vessels are often detected. To detect the tightness of the weld positions, ultrasonic detection devices are usually used to detect the pressure vessel welds. Workers need to move the pressure vessels and adjust their positions to ensure alignment with the detection device, which increases the labor intensity of the workers and is not convenient for detecting the pressure vessels. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an ultrasonic automatic detection device suitable for pressure vessel welds to solve the problems mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An ultrasonic automatic detection device suitable for pressure vessel welds, including a base;

[0006] An ultrasonic detection probe, which is arranged on one side above the base;

[0007] It further includes a positioning mechanism, which is arranged on the base. The positioning mechanism is used to form a placement structure on the upper surface of the base and position and align the pressure vessel to be detected;

[0008] A rotating mechanism, which is arranged on the positioning mechanism. The rotating mechanism is used to form a rotating structure on the positioning mechanism and drive the pressure vessel to rotate at a constant speed.

[0009] Preferably, the positioning mechanism:

[0010] A rotating disk, which is arranged on the top of the base;

[0011] A fixed seat, the lower surface of which is fixedly connected to the upper surface of the rotating disk, and the inner wall of the fixed seat is inclined;

[0012] Support blocks, which are arranged in the inner cavity of the fixed seat and are arranged at equal intervals in a circular array.

[0013] Preferably, the positioning mechanism further includes:

[0014] An installation groove which is arranged in an annular array on the inner wall of the fixed seat, and one end of the support block is slidably inserted into the inner cavity of the installation groove;

[0015] A fixing rod, the top end of which is fixedly connected to the top of the inner wall of the installation groove, and one end of the support block is slidably inserted into the fixing rod;

[0016] A compression spring which is movably sleeved on the fixing rod, and the top end of the compression spring is in contact with the lower surface of the support block.

[0017] Preferably, the rotating mechanism includes:

[0018] A driving motor, the output end of which is in transmission connection with the lower surface of the rotating disc;

[0019] A fixing frame, the lower surface of which is fixedly connected to one side of the upper surface of the base, and the fixing frame is arranged in a Z shape.

[0020] Preferably, the rotating mechanism further includes:

[0021] A screw rod which is threadedly inserted through the top of the fixing frame, and the screw rod corresponds to the axial center position of the rotating disc;

[0022] An extrusion block, the upper surface of which is rotatably connected to the bottom end of the screw rod, and the extrusion block is arranged in a circular block shape.

[0023] Preferably, the rotating disc is rotatably inserted through the top of the base, the outer wall of the support block is in contact with the inner wall of the installation groove, and the support block is arranged in a long strip shape.

[0024] The technical effects and advantages of the present utility model:

[0025] The present utility model uses a setting method in which the fixed seat, the rotating disc, the support block, the compression spring, the screw rod and the extrusion block are cooperated. By placing one end of the pressure vessel to be detected into the inner cavity of the fixed seat, the multiple support blocks are pressed downward along the fixing rod, and the support blocks compress and deform the compression spring, so that the outer wall of one end of the pressure vessel is pressed against the inclined surface of the inner wall of the fixed seat, and the pressure vessel is pushed, so that the axis of the pressure vessel is on the same vertical line as the axis of the fixed seat, which is convenient for positioning the pressure vessel and ensuring that the pressure vessel is aligned with the ultrasonic detection probe. Then, the screw rod is rotated to drive the extrusion block to move vertically downward, and the lower surface of the extrusion block presses against the upper surface of the other end of the pressure vessel to fix the pressure vessel by extrusion, ensuring that the rotating disc drives the pressure vessel to rotate stably, which is convenient for detecting the weld of the pressure vessel. Description of the Drawings

[0026] Figure 1This is a schematic diagram of the overall structure of the utility model.

[0027] Figure 2 This is a schematic diagram of the front cross-sectional structure at the rotating disk of the utility model.

[0028] Figure 3 This is a schematic diagram of the front cross-sectional structure at the fixed seat of the utility model.

[0029] In the figure: 1, base; 2, ultrasonic detection probe; 3, positioning mechanism; 31, rotating disk; 32, fixed seat; 33, support block; 34, installation groove; 35, fixing rod; 36, compression spring; 4, rotating mechanism; 41, drive motor; 42, fixing frame; 43, screw; 44, extrusion block. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0031] The present utility model provides a Figures 1-3 shown ultrasonic automatic detection device for pressure vessel welds, including a base 1, an ultrasonic detection probe 2, a positioning mechanism 3, and a rotating mechanism 4. The base 1 plays a role in fixing and supporting. The ultrasonic detection probe 2 is arranged on one side above the base 1. The ultrasonic detection probe 2 is a USM86 / USM88 ultrasonic flaw detector, which is used to detect the weld position of the pressure vessel. The positioning mechanism 3 is arranged on the base 1. The positioning mechanism 3 is used to form a placement structure on the upper surface of the base 1 and position and align the pressure vessel to be detected. The position of the pressure vessel to be detected is limited by the positioning mechanism 3 to ensure that the pressure vessel is aligned with the ultrasonic detection probe 2. The rotating mechanism 4 is arranged on the positioning mechanism 3. The rotating mechanism 4 is used to form a rotating structure on the positioning mechanism 3 and drive the pressure vessel to rotate at a constant speed. The pressure vessel is stably rotated by the rotating mechanism 4, which is convenient for the ultrasonic detection probe 2 to detect the pressure vessel.

[0032] The positioning mechanism 3 includes a rotating disk 31, a fixed seat 32, a support block 33, an installation groove 34, a fixed rod 35 and a compression spring 36. The rotating disk 31 is arranged on the top of the base 1. The rotating disk 31 is used to install the fixed seat 32 and drive the fixed seat 32 and the pressure vessel to rotate. The lower surface of the fixed seat 32 is fixedly connected to the upper surface of the rotating disk 31. The inner wall of the fixed seat 32 is arranged in an inclined plane. The fixed seat 32 is used to install and support the pressure vessel. One end of the pressure vessel is inserted into the inner cavity of the fixed seat 32, so that the outer wall of one end of the pressure vessel is pressed against the inner wall of the fixed seat 32, and the axis of the pressure vessel is on the same vertical line as the axis of the fixed seat 32. The support block 33 is arranged in the inner cavity of the fixed seat 32. The support blocks 33 are arranged at equal intervals in a circular array. The support block 33 is used to support the bottom end of the pressure vessel. And by the gravity of the pressure vessel, the support blocks 33 are pressed downward. The installation grooves 34 are arranged in a circular array on the inner wall of the fixed seat 32. The inner cavity of the installation groove 34 is slidably inserted and connected to one end of the support block 33. The installation groove 34 is used to install the support block 33, so that the support block 33 slides vertically in the inner cavity of the installation groove 34. The top end of the fixed rod 35 is fixedly connected to the top of the inner wall of the installation groove 34. The fixed rod 35 is used to install the support block 33 and the compression spring 36 to ensure the stable movement of the support block 33 in the vertical direction. The fixed rod 35 is slidably inserted and connected to one end of the support block 33. The compression spring 36 is movably sleeved on the fixed rod 35. The top end of the compression spring 36 is in contact with the lower surface of the support block 33. The compression spring 36 is used to support the support block 33. And when the pressure vessel presses the support block 33 downward, the support block 33 compresses the compression spring 36 deforming it. And by the elastic action of the compression spring 36, the support block 33 is pushed upward. By placing one end of the pressure vessel to be detected into the inner cavity of the fixed seat 32, the support blocks 33 are pressed downward along the fixed rod 35. The support blocks 33 compress the compression spring 36 deforming it, so that the outer wall of one end of the pressure vessel is pressed against the inclined plane of the inner wall of the fixed seat 32, pushing the pressure vessel, and making the axis of the pressure vessel on the same vertical line as the axis of the fixed seat 32, which is convenient for positioning the pressure vessel and ensuring the alignment of the pressure vessel with the ultrasonic detection probe 2.

[0033] The rotating mechanism 4 includes a driving motor 41, a fixing frame 42, a screw rod 43 and a pressing block 44. The output end of the driving motor 41 is in transmission connection with the lower surface of the rotating disk 31. The driving motor 41 is fixedly installed inside the base 1. The driving motor 41 is electrically connected to an external power supply through an external switch and is used to drive the rotating disk 31 and the pressure vessel to rotate. The lower surface of the fixing frame 42 is fixedly connected to one side of the upper surface of the base 1. The fixing frame 42 is arranged in a Z shape and is used to install the screw rod 43. The screw rod 43 is in threaded insertion connection with the top of the fixing frame 42. The screw rod 43 corresponds to the axial center position of the rotating disk 31. The screw rod 43 is used to install the pressing block 44. The screw rod 43 rotates in a threaded manner on the fixing frame 42. The upper surface of the pressing block 44 is rotatably connected to the bottom end of the screw rod 43. The pressing block 44 is arranged in a circular block shape. As the screw rod 43 rotates, the pressing block 44 drives its movement in the vertical direction, so that the lower surface of the pressing block 44 presses against the upper surface of the other end of the pressure vessel, squeezing and fixing the pressure vessel to ensure that the rotating disk 31 drives the pressure vessel to rotate stably. The rotating disk 31 is rotatably inserted through the top of the base 1. The outer wall of the support block 33 fits against the inner wall of the installation groove 34. The support block 33 is arranged in a long strip shape.

[0034] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An ultrasonic automatic detection device suitable for pressure vessel welds, comprising: A base (1); An ultrasonic detection probe (2), which is arranged on one side above the base (1); It is characterized in that it further includes a positioning mechanism (3), the positioning mechanism (3) is arranged on the base (1), and the positioning mechanism (3) is used to form a placement structure on the upper surface of the base (1) and position and align the pressure vessel to be detected; A rotating mechanism (4), the rotating mechanism (4) is arranged on the positioning mechanism (3), and the rotating mechanism (4) is used to form a rotating structure on the positioning mechanism (3) and drive the pressure vessel to rotate at a constant speed.

2. The ultrasonic automatic inspection device for pressure vessel welds according to claim 1, wherein The positioning mechanism (3) includes: A rotating disk (31), which is arranged on the top of the base (1); A fixed seat (32), the lower surface of the fixed seat (32) is fixedly connected to the upper surface of the rotating disk (31), and the inner wall of the fixed seat (32) is arranged in an inclined plane; Support blocks (33), which are arranged in the inner cavity of the fixed seat (32), and the support blocks (33) are arranged at equal intervals in a circular array.

3. The ultrasonic automatic inspection device for pressure vessel welds according to claim 2, characterized in that, The positioning mechanism (3) further includes: Mounting grooves (34), which are arranged in a circular array on the inner wall of the fixed seat (32), and the inner cavity of the mounting grooves (34) is slidably inserted and connected with one end of the support block (33); Fixed rods (35), the top ends of the fixed rods (35) are fixedly connected to the top of the inner wall of the mounting grooves (34), and the fixed rods (35) are slidably inserted and connected with one end of the support block (33); Compression springs (36), which are movably sleeved on the fixed rods (35), and the top ends of the compression springs (36) are in contact with the lower surface of the support block (33).

4. The ultrasonic automatic inspection device for pressure vessel welds according to claim 3, characterized in that, The rotating mechanism (4) includes: A driving motor (41), the output end of the driving motor (41) is in transmission connection with the lower surface of the rotating disk (31); A fixed frame (42), the lower surface of the fixed frame (42) is fixedly connected to one side of the upper surface of the base (1), and the fixed frame (42) is arranged in a Z shape.

5. An ultrasonic automatic inspection device for pressure vessel welds according to claim 4, characterized in that, The rotating mechanism (4) further includes: A screw rod (43), which is threadedly inserted and connected to the top of the fixed frame (42), and the screw rod (43) corresponds to the axial center position of the rotating disk (31); An extrusion block (44), the upper surface of the extrusion block (44) is rotatably connected to the bottom end of the screw rod (43), and the extrusion block (44) is arranged in a circular block shape.

6. The ultrasonic automatic inspection device for pressure vessel welds according to claim 5, characterized in that, The rotating disk (31) is rotatably inserted and connected to the top of the base (1), the outer wall of the support block (33) is in contact with the inner wall of the mounting groove (34), and the support block (33) is arranged in a long strip shape.

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