CN215449112U - A welding seam detection scanning frame for ultrasonic testing instrument using diffraction time difference method - Google Patents

A welding seam detection scanning frame for ultrasonic testing instrument using diffraction time difference method Download PDF

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Publication number
CN215449112U
CN215449112U CN202121985573.6U CN202121985573U CN215449112U CN 215449112 U CN215449112 U CN 215449112U CN 202121985573 U CN202121985573 U CN 202121985573U CN 215449112 U CN215449112 U CN 215449112U
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China
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scanning
welding seam
probe
testing instrument
ultrasonic testing
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Expired - Fee Related
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CN202121985573.6U
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Chinese (zh)
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李修能
吴远建
闫河
石秀山
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China Special Equipment Inspection and Research Institute
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China Special Equipment Inspection and Research Institute
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Abstract

The utility model discloses a welding seam detection scanning frame for a diffraction time difference method ultrasonic detector, which relates to the field of welding seam detection equipment and comprises two supports and a graduated scale, wherein each support comprises a connecting end and a scanning end, the connecting ends of the two supports are rotatably connected, the scanning end of each support is provided with a scanning probe, the scanning probe is used for detecting a welding seam, a guide device which is in sliding connection with the graduated scale is arranged between the connecting end and the scanning end of each support, and when the center distance between the two scanning probes is adjusted, the size of the center distance between the two scanning probes can be obtained according to the graduated scale. The welding seam detection scanning frame for the diffraction time difference ultrasonic detector can enable the scanning frame to be more convenient to use.

Description

Weld joint detection scanning frame for diffraction time difference method ultrasonic detector
Technical Field
The utility model relates to the field of welding line detection equipment, in particular to a welding line detection scanning frame for an ultrasonic detector by a diffraction time difference method.
Background
After the pressure pipeline is welded, a scanning frame is required to be used for carrying out nondestructive detection on a welding line of the pressure pipeline by utilizing an ultrasonic diffraction time difference method, two probes are fixed on the scanning frame, one probe transmits an ultrasonic signal in the detection process, the other probe receives the ultrasonic signal, in order to ensure that when the pressure pipeline with different thicknesses is detected, the ultrasonic wave transmitted by the probes can completely cover the detected surface, the center distance between the two probes is required to be set according to the thickness of the detected pressure pipeline, the center distance between the two probes can be adjusted in the working process of the existing scanning frame, but the scanning frame cannot measure the distance between the centers of the two probes, other measuring tools are required to measure the distance between the centers of the two probes, and inconvenience is brought to the use of the scanning frame.
Disclosure of Invention
The utility model aims to provide a welding seam detection scanning frame for a diffraction time difference method ultrasonic detector, which solves the problems in the prior art and can enable the scanning frame to be more convenient to use.
In order to achieve the purpose, the utility model provides the following scheme: the scanning device comprises two supports and a graduated scale, wherein each support comprises a connecting end and a scanning end, the connecting ends of the two supports are rotatably connected, the scanning ends of the supports are respectively provided with a scanning probe, the scanning probes are used for detecting a welding seam, a guide device which is in sliding connection with the graduated scale is arranged between the connecting end and the scanning end of each support, and when the central distance between the two scanning probes is adjusted, the size of the central distance between the two scanning probes can be obtained according to the graduated scale.
Preferably, the scale comprises at least one scale fastening means for locking the relative position of the scale and each guide means.
Preferably, the support device further comprises support rotating shafts, the connecting end of each support is coaxially provided with a rotating shaft hole, and the support rotating shafts penetrate through the rotating shaft holes in the supports so that the two supports are rotatably connected.
Preferably, the support device further comprises at least two support fastening nuts, the fastening nuts are in threaded connection with the support rotating shaft, at least one support fastening nut is arranged at each of two ends of the support rotating shaft, and the support fastening nuts are screwed down to lock the relative positions of the two supports.
Preferably, the device further comprises fixing rods, each support comprises two support rods arranged in parallel, one end of each fixing rod is fixedly connected with one support rod of each support, and the other end of each fixing rod is fixedly connected with the other support rod of each support.
Preferably, the scanning probe is used for being respectively and rotatably connected with the two support rods on the same support.
Preferably, the device further comprises an encoder, wherein the encoder comprises a distance measuring roller, and the encoder is rotatably arranged at the scanning end of one bracket.
Preferably, the scanning device further comprises probe fixing devices, two ends of each probe fixing device are rotatably connected with the scanning end of one support, and the probe fixing devices are used for being fixedly connected with the scanning probes.
Preferably, a sliding groove is formed in the graduated scale, and the guide device can slide along the side wall of the sliding groove.
Preferably, a probe fixing cavity is formed in the probe fixing device, and the scanning probe is fixed in the probe fixing cavity.
Compared with the prior art, the utility model has the following technical effects:
according to the welding line detection scanning frame for the diffraction time difference method ultrasonic detector, the guide devices which are connected with the graduated scales in a sliding mode are arranged between the connecting ends and the scanning ends of the supports, the guide devices can guide the graduated scales, the graduated scales are prevented from deviating during adjustment, the measurement accuracy is improved, and when the center distance between the two scanning probes is adjusted, the size of the center distance between the two scanning probes can be obtained according to the graduated scales. The central distance between the two scanning probes can be adjusted by adjusting the angles of the two supports, after the central distance between the two scanning probes is adjusted according to the thickness of a measured pressure pipeline, the two supports correspond to two different scales on the graduated scale, the size of the central distance between the two scanning probes can be obtained according to the difference between the two scales, the scales on the graduated scale can be angle scales for measuring the angle between the two supports, and also can be size scales for measuring the size of the central distance between the two scanning probes after the angle between the two supports is converted, the central distance between the two scanning probes is not required to be measured by using an additional measuring tool, and the scanning frame is more convenient to use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a weld inspection scanning frame for a diffraction time difference ultrasonic detector provided in the present invention;
FIG. 2 is a top view of a weld inspection scanning frame for the ultrasonic testing apparatus of FIG. 1;
fig. 3 is a side view of a weld inspection scanning frame for the ultrasonic testing apparatus using the diffraction time difference method in fig. 1.
In the figure: 1-a welding seam detection scanning frame for an ultrasonic detector by a diffraction time difference method; 2-a scaffold; 3-bracket fastening nuts; 4-a bracket rotating shaft; 5-scanning the probe; 6-probe fixing device; 7-a graduated scale; 8-a scale fastening device; 9-an encoder; 10-distance measuring roller.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model aims to provide a welding seam detection scanning frame for a diffraction time difference method ultrasonic detector, which solves the problems in the prior art and can enable the scanning frame to be more convenient to use.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The embodiment provides a welding seam detection scanning frame 1 for a diffraction time difference method ultrasonic detector, as shown in fig. 1-3, the welding seam detection scanning frame comprises two supports 2 and a graduated scale 7, each support 2 comprises a connecting end and a scanning end, the connecting ends of the two supports 2 are rotatably connected, the scanning ends of the supports 2 are provided with scanning probes 5, the scanning probes 5 are used for detecting welding seams, a guiding device in sliding connection with the graduated scale 7 is arranged between the connecting end and the scanning end of each support 2, and when the center distance between the two scanning probes 5 is adjusted, the size of the center distance between the two scanning probes 5 can be obtained according to the graduated scale 7. During the use, can adjust two central intervals of scanning probe 5 through the angle of adjusting two supports 2, after two central intervals of scanning probe 5 are adjusted according to the thickness of measurand pipeline under pressure, two supports 2 correspond on scale 7 and have two different scales, according to the difference between two scales, can obtain two central intervals's of scanning probe 5 size, need not to use extra measuring tool to measure two central intervals of scanning probe 5, make the use of scanning the frame more convenient.
In this embodiment, the scanning probe 5 detects the pressure pipeline, performs detection signal acquisition, and transmits the detection signal to the detection host electrically connected to the scanning probe 5 for processing, so as to complete nondestructive detection of the weld joint of the pressure pipeline.
In this embodiment, the scale on the scale 7 may be an angle scale for measuring an angle between the two supports 2, or may be a dimension scale for measuring a dimension of a center distance between the two scanning probes 5 after the angle between the two supports 2 is converted, and if the scale is the angle scale, the distance between the rotating shafts of the scanning probes 5 and the two supports 2 rotating with each other is combined according to the measured angle between the two supports 2, that is, according to the cosine theorem, a2＝b2+c22bccos theta, where a is the center-to-center distance of the two scanning probes, b and c are the length of each stent, respectively, and theta is the angle between the two stents. Obtaining the size of the center distance between the two scanning probes 5; if the scales are size scales, the scales 7 with the scales calculated according to the cosine law and the distance between the rotating shafts of the scanning probes 5 and the two supports 2 rotating mutually are selected. In the present embodiment, a size scale is preferred as the scale of the scale 7, and the center-to-center distance between the two scanning probes 5 can be directly read from the scale 7.
In this embodiment, the weld detection scanning frame 1 for the ultrasonic detector using the diffraction time difference method further includes at least one scale fastening device 8, and each scale fastening device 8 is used to lock the relative position between the scale value and each guide device. After the center distance between the two scanning probes 5 is adjusted according to the thickness of the measured pressure pipeline, the scale fastening device 8 is used for locking the relative positions of the scale values and the guide devices, and the scale 7 is fastened with at least one bracket 2 so as to keep the adjusting and measuring state.
The scale fastening device 8 in this embodiment is a fastening nut, the fastening nut is screwed with the guide device, and when the fastening nut is screwed, the fastening nut and the supports 2 can clamp the scale 7 tightly so as to fix the scale 7 on each support 2, thereby fixing the center of the two scanning probes 5.
In this embodiment, the weld detection scanning frame 1 for the diffraction time difference method ultrasonic detector further includes a support rotating shaft 4, the connecting end of each support 2 is coaxially provided with a rotating shaft hole, and the support rotating shaft 4 penetrates through the rotating shaft holes on each support 2 to rotatably connect the two supports 2. In the embodiment, the support rotating shaft 4 is preferably used for connecting the two supports 2 to realize the rotating connection of the two supports 2, and the two supports 2 can rotate mutually.
In this embodiment, the weld detection scanning frame 1 for the ultrasonic detector based on the diffraction time difference method further comprises at least two support fastening nuts 3, the fastening nuts are in threaded connection with the support rotating shaft 4, at least one support fastening nut 3 is respectively arranged at two ends of the support rotating shaft 4, and the support fastening nuts 3 are screwed up to lock the relative positions of the two supports 2. After the center distance between the two scanning probes 5 is adjusted according to the measured thickness of the pressure pipeline, the two brackets 2 are fastened with each other by using the bracket fastening nuts 3 so as to keep the adjusted centers of the two scanning probes 5.
In this embodiment, the weld detection scanning frame 1 for the ultrasonic detector using the diffraction time difference method further includes fixing rods, each of the brackets 2 includes two support rods arranged in parallel, one end of each fixing rod is fixedly connected with one support rod of the bracket 2, and the other end of each fixing rod is fixedly connected with the other support rod of the bracket 2. The arrangement of the fixed rod can enable the overall structure of the bracket 2 to be more stable.
In this embodiment, the scanning probe 5 is used to be rotatably connected to two support rods on the same bracket 2. The scanning probe 5 can be rotated to adapt to the outer surface of pressure pipelines with different diameters.
In this embodiment, the weld detection scanning frame 1 for the ultrasonic detector based on the diffraction time difference method further comprises an encoder 9, the encoder 9 comprises a distance measuring roller 10, and the encoder 9 is rotatably arranged at a scanning end of one support 2. The distance measuring roller 10 of the encoder 9 can be adapted to the outer surfaces of pressure pipes with different diameters. In this embodiment, the scanning frame can be positioned by the moving distance of the scanning frame measured by the distance measuring roller 10.
In this embodiment, the diffraction time difference method ultrasonic detector for detecting and scanning a weld seam further comprises probe fixing devices 6, two ends of each probe fixing device 6 are rotatably connected with the scanning end of one support 2, and the probe fixing devices 6 are used for being fixedly connected with the scanning probes 5. In this embodiment, the scanning probe 5 is preferably fixed by a probe fixing device 6. The probe fixing device 6 can be adjusted in a rotating mode according to the surface shapes of the pressure pipelines with different sizes, so that the scanning probe 5 in the probe fixing device 6 is suitable for the surfaces of the pressure pipelines with different curvatures.
In this embodiment, a sliding groove is formed in the scale 7, and the guide device can slide along the side wall of the sliding groove. In this embodiment, the sliding groove is preferably slidably connected to the guide.
In this embodiment, the probe fixing device 6 is provided with a probe fixing cavity, and the scanning probe 5 is fixed in the probe fixing cavity. The scanning probe 5 can further adjust the position of the scanning probe 5 in the probe fixing cavity according to the shapes of the outer surfaces of the pressure pipelines with different sizes, and the scanning probe 5 is fixed by screws after being adjusted, so that the scanning probe 5 is further attached to the pressure pipelines, the scanning probe is suitable for detection surfaces with different curvatures, and the detection precision is improved.
The principle and the implementation mode of the utility model are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the utility model; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the utility model.

Claims (10)

1.一种衍射时差法超声检测仪器用焊缝检测扫查架，其特征在于：包括两个支架和刻度尺，各所述支架均包括连接端和扫查端，两个所述支架的连接端转动连接，各所述支架的扫查端均设置有扫查探头，所述扫查探头用于对焊缝进行检测，各所述支架上的所述连接端和所述扫查端之间均设置有与所述刻度尺滑动连接的导向装置，当调整好两个扫查探头的中心间距时，能够根据所述刻度尺获得两个所述扫查探头的中心间距的尺寸。1. a diffraction time-difference method ultrasonic testing instrument detects a scanning frame for welding seam, it is characterized in that: comprise two supports and scale, each described support all comprises connecting end and scanning end, the connection of two described supports The scanning end of each bracket is provided with a scanning probe, and the scanning probe is used to detect the welding seam. The connection end on each bracket and the scanning end are connected Both are provided with a guide device slidably connected to the scale. When the center-to-center spacing of the two scanning probes is adjusted, the size of the center-to-center spacing of the two scanning probes can be obtained according to the scale. 2.根据权利要求1所述的衍射时差法超声检测仪器用焊缝检测扫查架，其特征在于：还包括至少一个刻度尺紧固装置，所述刻度尺紧固装置用于锁定所述刻度尺与各所述导向装置的相对位置。2. The welding seam detection scanning frame for a time-of-flight diffraction method ultrasonic testing instrument according to claim 1, characterized in that: it further comprises at least one scale fastening device, and the scale fastening device is used to lock the scale The relative position of the ruler and each of the guide devices. 3.根据权利要求1所述的衍射时差法超声检测仪器用焊缝检测扫查架，其特征在于：还包括支架转轴，各所述支架的所述连接端均同轴设置有转轴孔，所述支架转轴穿过各所述支架上的所述转轴孔以使两个所述支架转动连接。3. The welding seam detection scanning frame for a time-of-flight diffraction method ultrasonic testing instrument according to claim 1, characterized in that: further comprising a support shaft, and the connecting ends of each of the supports are coaxially provided with a shaft hole, so The rotating shafts of the brackets pass through the rotating shaft holes on each of the brackets so as to connect the two brackets rotatably. 4.根据权利要求3所述的衍射时差法超声检测仪器用焊缝检测扫查架，其特征在于：还包括至少两个支架紧固螺母，所述紧固螺母与所述支架转轴螺纹连接，所述支架转轴两端各设置至少一个支架紧固螺母，所述支架紧固螺母拧紧用于锁定两个所述支架的相对位置。4. The welding seam detection scanning frame for a time-of-flight diffraction method ultrasonic testing instrument according to claim 3, characterized in that: it further comprises at least two bracket tightening nuts, and the tightening nuts are threadedly connected to the rotating shaft of the bracket, At least one bracket fastening nut is provided at each end of the bracket rotating shaft, and the bracket fastening nut is tightened to lock the relative positions of the two brackets. 5.根据权利要求1所述的衍射时差法超声检测仪器用焊缝检测扫查架，其特征在于：还包括固定杆，各所述支架均包括两根平行设置的支杆，所述固定杆一端与所述支架的一根支杆固定连接，所述固定杆的另一端与所述支架的另一根支杆固定连接。5. The welding seam detection scanning frame for a time-of-flight diffraction method ultrasonic testing instrument according to claim 1, characterized in that: it further comprises a fixing rod, and each of the supports comprises two supporting rods arranged in parallel, and the fixing rods One end of the fixed rod is fixedly connected with one support rod of the bracket, and the other end of the fixed rod is fixedly connected with another support rod of the support frame. 6.根据权利要求5所述的衍射时差法超声检测仪器用焊缝检测扫查架，其特征在于：所述扫查探头用于分别与同一个所述支架上的两根所述支杆转动连接。6 . The welding seam detection scanning frame for a time-diffraction method ultrasonic testing instrument according to claim 5 , wherein the scanning probe is used to rotate with the two described struts on the same frame respectively. 7 . connect. 7.根据权利要求1所述的衍射时差法超声检测仪器用焊缝检测扫查架，其特征在于：还包括编码器，所述编码器包括测距滚轮，所述编码器转动设置在一个所述支架的所述扫查端。7. The welding seam detection scanning frame for a time-of-flight diffraction method ultrasonic testing instrument according to claim 1, characterized in that: it further comprises an encoder, and the encoder comprises a ranging roller, and the encoder is rotatably arranged in a the scanning end of the stent. 8.根据权利要求1所述的衍射时差法超声检测仪器用焊缝检测扫查架，其特征在于：还包括探头固定装置，各所述探头固定装置两端均与一个所述支架的所述扫查端转动连接，所述探头固定装置用于与所述扫查探头固定连接。8. The welding seam detection scanning frame for a time-of-flight diffraction method ultrasonic testing instrument according to claim 1, characterized in that: further comprising a probe fixing device, and both ends of each said probe fixing device are connected to the one of said brackets. The scanning end is rotatably connected, and the probe fixing device is used for fixed connection with the scanning probe. 9.根据权利要求1所述的衍射时差法超声检测仪器用焊缝检测扫查架，其特征在于：所述刻度尺内开设有滑动槽，所述导向装置能够沿所述滑动槽的侧壁滑动。9 . The welding seam detection scanning frame for a time-of-flight diffractometry ultrasonic testing instrument according to claim 1 , wherein a sliding groove is provided in the scale, and the guiding device can move along the side wall of the sliding groove. 10 . slide. 10.根据权利要求8所述的衍射时差法超声检测仪器用焊缝检测扫查架，其特征在于：所述探头固定装置上开设有探头固定腔，所述扫查探头用于固定在所述探头固定腔内。10. The welding seam detection scanning frame for a time-of-flight diffraction method ultrasonic testing instrument according to claim 8, wherein a probe fixing cavity is provided on the probe fixing device, and the scanning probe is used to be fixed on the probe fixing device. The probe is fixed in the cavity.
CN202121985573.6U 2021-08-23 2021-08-23 A welding seam detection scanning frame for ultrasonic testing instrument using diffraction time difference method Expired - Fee Related CN215449112U (en)

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CN202121985573.6U CN215449112U (en) 2021-08-23 2021-08-23 A welding seam detection scanning frame for ultrasonic testing instrument using diffraction time difference method

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CN202121985573.6U CN215449112U (en) 2021-08-23 2021-08-23 A welding seam detection scanning frame for ultrasonic testing instrument using diffraction time difference method

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Granted publication date: 20220107