X-ray detection device for large-thickness seal head structure-like welding seam and use method of X-ray detection device

Abstract

According to the X-ray detection device and method for the large-thickness end socket structure type welding seam, the X-ray detection work of the large-thickness end socket structure type welding seam can be achieved while a conventional straight welding seam can be detected, operation is easy and convenient, the time for adjusting the position of a ray machine and focusing is shortened, labor intensity is reduced, and the detection efficiency is improved. Meanwhile, the directional X-ray machine is moved to the detection position from the equipment storage area through the walking moving device and the adjustable stable fixing support, the adjustable stable fixing support is unfolded, and the stability of the system is guaranteed by adjusting the vertical height adjusting supporting legs.

Description

Technical Field

[0001] The present invention relates to the field of metrology, detection and processing technology, and more specifically, to an X-ray detection device for thick-thickness head structure welds and a method for using the same. Technical Background

[0002] In the X-ray inspection of thick head structure welds, there are two types of X-ray machines commonly used, namely mobile directional X-ray machines and mobile circumferential X-ray machines. The mobile directional X-ray machine has a radiation angle of a fixed window size, and is mainly used for the X-ray inspection of longitudinal welds and some pipe joint fillet welds. The mobile circumferential X-ray machine has a radiation angle of 360°, and is mainly used for the X-ray inspection of cylinder or pipe circumferential welds. However, due to the certain height difference between the longitudinal circumferential weld of the head structure and the ground, according to the X-ray inspection requirements, when the on-site conditions are met, it is preferred to perform transillumination from the inside to obtain a film with high imaging quality. However, due to the geometric volume and weight limitations of the mobile X-ray machine used for the inspection of thick head structure welds, it is impossible to perform transillumination from the inside, and the overweight equipment leads to problems such as excessive physical labor and low inspection efficiency. Summary of the invention

[0003] In response to the above problems, the present invention provides an X-ray detection device and method for thick head structure welds. While being able to detect conventional straight welds, it can also realize X-ray detection of thick head structure welds. The operation is simple and convenient, shortens the time for adjusting the position of the X-ray machine and aligning the light, reduces labor intensity, and greatly improves the detection efficiency.

[0004] First, an X-ray detection device for thick head structure welds is provided, which includes a walking mobile device 1, an adjustable stable fixed bracket 2, a scissor-type lifting mechanism 3, an electric control hydraulic system 4, a directional X-ray machine fixing device 5, and a control center 6. The electric control hydraulic system 4 and the directional X-ray machine fixing device 5 are electrically connected to the control center 6. It is characterized in that the walking mobile device 1 includes a base, two universal wheels 11 fixed at the front lower part of the base and a manual traction mechanism 12, and two walking wheels 13 fixed at the rear lower part of the base. The control center 6 is fixed to the mobile device 1. The manual traction mechanism 12 is close to the side of the manual traction mechanism 12, and the manual traction mechanism 12 can drive the walking device 1 to move. The top of the scissor-type lifting mechanism 3 is provided with a directional X-ray machine fixing platform 31, and the directional X-ray machine is installed on the fixed platform 31 through a directional X-ray machine fixing device 5. The electric-controlled hydraulic system 4 is connected to the scissor-type lifting mechanism 3, and the expansion and contraction of the scissor-type lifting mechanism 3 is controlled by the electric-controlled hydraulic system 4. The directional X-ray machine fixing device 5 can control the directional X-ray machine to move forward and backward and rotate on the fixed platform 31.

[0005] Furthermore, a stable fixed bracket 2 is installed on the base of the walking mobile device 1, which is arranged around the base of the walking mobile device 1, retracts and unfolds when in use, and has upper and lower height adjustment legs to ensure the stability of the fixed bracket 2 and the walking mobile device 1.

[0006] Furthermore, the directional X-ray machine fixing device 5 includes a directional X-ray machine forward and backward moving mechanism 51, a directional X-ray machine rotation adjustment mechanism 52, a directional X-ray machine clamping device 53, and a laser ranging sensor 54. The clamping device 53 fixes the directional X-ray machine on the rotation adjustment mechanism 52. The rotation adjustment mechanism 52 is installed on the forward and backward moving mechanism 51, and the rotation adjustment mechanism 52 can rotate left and right relative to the forward and backward moving mechanism 51. The forward and backward moving mechanism 51 is installed on the fixed platform 31, and the forward and backward moving mechanism 51 can move forward and backward relative to the fixed platform 31.

[0007] Furthermore, the moving distance of the directional X-ray machine forward and backward moving mechanism 51 is limited to -200 mm to +200 mm, so as to achieve precise adjustment of the focal length of the directional X-ray machine.

[0008] Furthermore, the rotation angle of the directional X-ray machine rotation adjustment mechanism 52 is -90° to +20°, which enables fine adjustment of the angle of the directional X-ray machine, and ultimately facilitates accurate alignment.

[0009] Furthermore, the laser distance measuring sensor 54 is fixed at the front end of the directional X-ray machine clamping device 53 close to the beam exit window of the directional X-ray machine, and its numerical display screen is integrated on the control center panel.

[0010] Furthermore, the walking mobile device 1 is equipped with a level monitor for monitoring the horizontal stability of the device system.

[0011] Furthermore, the two universal wheels 11 at the front lower part of the base and the two running wheels at the rear lower part of the base are provided with a movable locking device for locking the wheels.

[0012] The present invention also provides a method for using the above-mentioned detection device, which is characterized in that the product to be inspected is sent to a designated position in the exposure room, and the walking and moving device 1 is operated to move it to the back of the weld to be inspected; the stable fixed bracket 2 is opened and locked; the scissor-type lifting mechanism controller is operated to lift the directional X-ray machine to the detection position; the weld to be inspected is accurately positioned by the directional X-ray machine fixing device 5, and based on the precise positioning structure, the directional X-ray machine is controlled by the directional X-ray machine fixing device 5 to move back and forth and rotate on the fixed platform 31 to achieve precise adjustment of the line focal length and precise alignment of the radiation transillumination; the radiation source is turned on for detection, and after the detection of this position is completed, the directional X-ray machine is moved to the next detection position for detection by the walking and moving device 1 or the scissor-type lifting mechanism 3 until the entire workpiece detection is completed; after the detection work is completed, the scissor-type lifting mechanism 3 is adjusted to the lowest position, the adjustable stable fixed bracket 2 is retracted, and the entire detection device is moved to the equipment storage area.

[0013] The beneficial effects of the present invention are:

[0014] Compared with the prior art, the present invention provides an X-ray detection device for large-thickness head structure welds, which can detect conventional straight welds and realize X-ray detection of large-thickness head structure welds at the same time. The operation is simple and convenient, shortens the time for adjusting the position of the X-ray machine and the light, reduces labor intensity, and greatly improves the detection efficiency. At the same time, the directional X-ray machine is moved from the equipment storage area to the detection position through the walking moving device and the adjustable stable fixed bracket, and the adjustable stable fixed bracket is unfolded and the support feet are adjusted by adjusting the upper and lower heights to ensure the stability of the system. The directional X-ray machine is fixed on the directional X-ray machine fixing device, and then the directional X-ray machine is lifted to the detection position through the scissor-type lifting mechanism and the electric control hydraulic system, and the real-time focal length can be measured by the laser ranging sensor according to the specific detection position, and the focal length can be accurately adjusted and the radiation transillumination can be accurately aligned through the directional X-ray machine forward and backward moving mechanism and the directional X-ray machine rotation adjustment mechanism. The X-ray detection method for thick head structure welds is suitable for directional X-ray detection of heads or other workpieces with a height of 0.5 to 4.5 meters. It shortens the preparation time before detection, reduces the labor intensity of operators, improves the accuracy of light, reduces the generation of useless waste, and greatly improves the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The side view structure of the overall X-ray detection device for thick head structure welds of the present invention;

[0016] Figure 2 The present invention is a front view structure of an X-ray detection device for welds of large-thickness end cap structures. DETAILED DESCRIPTION

[0017] To make the technical solutions and advantages of the present invention more clear, the present invention and its beneficial effects will be described in further detail below in conjunction with specific implementation methods and accompanying drawings, but the implementation methods of the present invention are not limited thereto.

[0018] In the present invention, "at least one" means one or more, and "more than one" means two or more. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, "at least one of a, b, or c", or "at least one of a, b, and c", can all mean: a, b, c, ab (i.e., a and b), ac, bc, or abc, where a, b, c can be single or multiple.

[0019] like Figure 1-2 As shown, an X-ray detection method for thick head structure welds includes a walking mobile device 1, an adjustable stable fixed bracket 2, a scissor-type lifting mechanism 3, an electric control hydraulic system 4, a directional X-ray machine fixing device 5, and a control center 6. The control center 6 integrates a scissor-type lifting mechanism controller and a laser ranging sensor display screen and a controller of the fixing device 5. The product to be inspected is sent to a designated position in the exposure room, and the walking mobile device is operated to move it to the back of the weld to be inspected. The stable fixed bracket is opened and locked. The scissor-type lifting mechanism controller is operated. In some embodiments, the controller can be controlled by a fixed or remote control method to lift the directional X-ray machine to the inspection site and realize precise light alignment, and finally realize exposure of the inspection site. Since the mobile lifting device can simply and conveniently realize movement and precise light alignment, the preparation work before inspection is shortened, the labor intensity is greatly reduced, and the inspection efficiency is improved while reducing the generation of useless waste films.

[0020] In some embodiments, the walking moving device is manually pulled, including a base, two universal wheels 11 fixed at the front lower part of the base and a manual traction mechanism 12, and two walking wheels 13 fixed at the rear lower part of the base, with an overall height of 0.5 meters.

[0021] In some embodiments, the adjustable stable fixed bracket 2 (four in total) is fixed together with the walking mobile device, arranged around the walking mobile device, telescoped and unfolded when in use, and has upper and lower height adjustment legs to ensure the stability of the adjustable stable fixed bracket and the walking mobile device.

[0022] In some embodiments, the maximum load capacity of the scissor-type lifting mechanism is 300 kg, and it is fixed on the walking mobile device. A directional X-ray machine fixed platform 31 is provided on the top of the scissor-type lifting mechanism. The directional X-ray machine fixed platform can be lifted up and down with the scissor-type lifting mechanism. The effective stroke is 4 meters, excluding the height of 0.5 meters of the walking mobile device itself.

[0023] In certain embodiments, the electro-hydraulic system is fixed at the center of the walking mobile device to meet the maximum lifting weight of 300kg of the scissors-type lifting mechanism. One end of the hydraulic rod is fixed to one end of the walking mobile device, and the movable end of the hydraulic rod is connected to the scissors-type lifting mechanism. The electro-hydraulic system is operated by a controller to realize the up and down movement of the scissors-type lift.

[0024] In some embodiments, the directional X-ray machine fixing device 5 is connected to the directional X-ray machine fixing platform on the top platform 31 of the scissors-type lifting mechanism, and includes a directional X-ray machine forward and backward moving mechanism 51, a directional X-ray machine rotation adjustment mechanism 52, a directional X-ray machine clamping device 53, and a laser ranging sensor 54. The clamping device 53 fixes the directional X-ray machine on the rotation adjustment mechanism 52, the rotation adjustment mechanism 52 is installed on the forward and backward moving mechanism 51, and the rotation adjustment mechanism 52 can rotate left and right relative to the forward and backward moving mechanism 51, the forward and backward moving mechanism 51 is installed on the fixed platform 31, and the forward and backward moving mechanism 51 can move forward and backward relative to the fixed platform 31.

[0025] In some embodiments, the walking mobile device has a level monitor for monitoring the horizontal stability of the device system.

[0026] In some embodiments, the two universal wheels at the front lower part of the base and the two running wheels at the rear lower part of the base are provided with movement locking devices for locking the wheels, so as to avoid unnecessary movement of the system.

[0027] In some embodiments, the adjustable stable fixing bracket has a locking and fixing device for adjusting the telescopic expansion length and the upper and lower height of the support legs, which can prevent the adjusted system horizontal stability from changing during operation.

[0028] In some embodiments, the moving distance of the forward and backward moving mechanism of the directional X-ray machine is limited to -200 mm to +200 mm, so as to achieve precise adjustment of the focal length of the directional X-ray machine.

[0029] In some embodiments, the rotation angle of the rotation adjustment mechanism of the directional X-ray machine is -90° to +20°, so as to achieve fine adjustment of the angle of the directional X-ray machine, and ultimately facilitate accurate alignment of the light.

[0030] In some embodiments, the laser ranging sensor is fixed at the front end of the directional X-ray machine clamping device near the directional X-ray machine beam output window, and its numerical display screen is integrated on the control center panel to facilitate reading of real-time transillumination focal length.

[0031] In some embodiments, the control center is fixed to the side of the mobile device, that is, above the universal wheel, for easy operation and observation.

[0032] The method for using the above-mentioned detection device is characterized in that the product to be inspected is sent to the designated position in the exposure room, and the walking and moving device 1 is operated to move it to the back of the weld to be inspected; the stable fixed bracket 2 is opened and locked; the scissor-type lifting mechanism controller is operated to lift the directional X-ray machine to the detection position; the weld to be inspected is accurately positioned by the directional X-ray machine fixing device 5, and at the same time, based on the precise positioning structure, the directional X-ray machine is controlled by the directional X-ray machine fixing device 5 to move back and forth and rotate on the fixed platform 31 to achieve precise adjustment of the line focal length and precise alignment of the radiation transillumination; the radiation source is turned on for detection, and after the detection of this position is completed, the directional X-ray machine is moved to the next detection position for detection by the walking and moving device 1 or the scissor-type lifting mechanism 3 until the entire workpiece detection is completed; after the detection work is completed, the scissor-type lifting mechanism 3 is adjusted to the lowest position, the adjustable stable fixed bracket 2 is retracted, and the entire detection device is moved to the equipment storage area.

[0033] In summary, compared with the prior art, the present invention provides an X-ray detection device and method for thick head structure welds, which can detect conventional straight welds and realize X-ray detection of thick head structure welds at the same time. The operation is simple and convenient, shortens the time for adjusting the position of the X-ray machine and the light, reduces labor intensity, and greatly improves the detection efficiency. At the same time, the directional X-ray machine is moved from the equipment storage area to the detection position through the walking moving device and the adjustable stable fixed bracket, and the adjustable stable fixed bracket is unfolded and the support feet are adjusted up and down to ensure the stability of the system. The directional X-ray machine is fixed on the directional X-ray machine fixing device, and then the directional X-ray machine is lifted to the detection position through the scissor-type lifting mechanism and the electric control hydraulic system, and the real-time focal length can be measured by the laser ranging sensor according to the specific detection position, and the focal length can be accurately adjusted and the radiation transillumination can be accurately aligned through the directional X-ray machine forward and backward moving mechanism and the directional X-ray machine rotation adjustment mechanism. Turn on the radiation source for inspection. After the inspection of this part is completed, move the directional X-ray machine to the next inspection part for inspection through the walking mobile device or the scissor-type lifting mechanism until the inspection of the entire workpiece is completed. After the inspection work is completed, adjust the scissor-type lifting mechanism to the lowest position, retract the adjustable stable fixed bracket, and move the entire mobile lifting device to the equipment storage area through the walking mobile device. This X-ray inspection method for welds of large-thickness head structures is suitable for directional X-ray machine inspection of heads or other workpieces with a height of 0.5 to 4.5 meters. It shortens the preparation time before inspection, reduces the labor intensity of operators, improves the accuracy of light and reduces the generation of useless waste films, greatly improving the inspection efficiency.

[0034] The above are only exemplary embodiments of the present disclosure, and the scope of the present disclosure cannot be limited thereto. That is, any equivalent changes and modifications made according to the teachings of the present disclosure are still within the scope of the present disclosure. After considering the disclosure of the specification and the truth of practice, it will be easy for those skilled in the art to think of other embodiments of the present disclosure. This application is intended to cover any variation, use or adaptive change of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary techniques in the technical field that are not recorded in the present disclosure.

Claims

1. An X-ray detection device for thick head structure welds, comprising a walking moving device (1), an adjustable stable fixed bracket (2), a scissor-type lifting mechanism (3), an electric control hydraulic system (4), a directional X-ray machine fixing device (5), and a control center (6), wherein the electric control hydraulic system (4) and the directional X-ray machine fixing device (5) are electrically connected to the control center (6), characterized in that: The walking mobile device (1) comprises a base, two universal wheels (11) and a manual traction mechanism (12) fixed at the front lower part of the base, and two walking wheels (13) fixed at the rear lower part of the base. The control center (6) is fixed on the upper side of the mobile device (1) close to the manual traction mechanism (12). The manual traction mechanism (12) can drive the walking mobile device (1) to move. A directional X-ray machine fixing platform (31) is provided at the top of the scissor-type lifting mechanism (3). The directional X-ray machine is installed on the fixing platform (31) through a directional X-ray machine fixing device (5). The electric-controlled hydraulic system (4) is connected to the scissor-type lifting mechanism (3). The expansion and contraction of the scissor-type lifting mechanism (3) are controlled by the electric-controlled hydraulic system (4). The directional X-ray machine fixing device (5) can control the directional X-ray machine to move forward and backward and rotate on the fixing platform (31).

2. The X-ray detection device for thick head structure welds according to claim 1 is characterized in that: The base of the walking mobile device (1) is also equipped with a stable fixed bracket (2), which is arranged around the base of the walking mobile device (1) and is telescopically extended and unfolded when in use, and has upper and lower height adjustment legs to ensure the stability of the fixed bracket (2) and the walking mobile device (1).

3. The X-ray detection device for thick head structure welds according to claim 1 is characterized in that: The directional X-ray machine fixing device (5) comprises a directional X-ray machine forward and backward moving mechanism (51), a directional X-ray machine rotation adjustment mechanism (52), a directional X-ray machine clamping device (53), and a laser ranging sensor (54); the clamping device (53) fixes the directional X-ray machine on the rotation adjustment mechanism (52); the rotation adjustment mechanism (52) is mounted on the forward and backward moving mechanism (51), and the rotation adjustment mechanism (52) can rotate left and right relative to the forward and backward moving mechanism (51); the forward and backward moving mechanism (51) is mounted on the fixed platform (31), and the forward and backward moving mechanism (51) can move forward and backward relative to the fixed platform (31).

4. The X-ray detection device for thick head structure welds according to claim 3 is characterized in that: The moving distance of the directional X-ray machine forward and backward moving mechanism 51 is limited to -200mm to +200mm, so as to achieve precise adjustment of the focal length of the directional X-ray machine.

5. The X-ray detection device for thick head structure welds according to claim 3 is characterized in that: The rotation angle of the directional X-ray machine rotation adjustment mechanism 52 is -90° to +20°, which can achieve fine adjustment of the angle of the directional X-ray machine and ultimately achieve precise alignment.

6. The X-ray detection device for thick head structure welds according to claim 3, characterized in that: The laser distance measuring sensor 54 is fixed at the front end of the directional X-ray machine clamping device 53 close to the directional X-ray machine beam exit window, and its numerical display screen is integrated on the control center panel.

7. The X-ray detection device for thick head structure welds according to claim 1, characterized in that: The walking mobile device 1 is equipped with a level monitor for monitoring the horizontal stability of the device system.

8. The X-ray detection device for thick head structure welds according to claim 2, characterized in that: The two universal wheels 11 at the front lower part of the base and the two running wheels at the rear lower part of the base are provided with a moving locking device for locking the wheels.

9. A method for using the detection device according to any one of claims 1 to 8, characterized in that: Send the product to be inspected to the designated position in the exposure room, and operate the moving device 1 to move it to the back of the weld to be inspected; Open and lock the stable fixed bracket 2; operate the scissor-type lifting mechanism controller to lift the directional X-ray machine to the inspection site; accurately position the inspected weld through the directional X-ray machine fixing device 5, and based on the precise positioning structure, control the directional X-ray machine to move back and forth and rotate on the fixed platform 31 through the directional X-ray machine fixing device 5 to achieve precise adjustment of the line focal length and precise alignment of the radiation transillumination, turn on the radiation source for inspection, and after the inspection of this site is completed, move the directional X-ray machine to the next inspection site for inspection through the walking moving device 1 or the scissor-type lifting mechanism 3 until the entire workpiece inspection is completed; after the inspection work is completed, adjust the scissor-type lifting mechanism 3 to the lowest position, retract the adjustable stable fixed bracket 2, and move the entire inspection device to the equipment storage area.

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