技术领域technical field
本发明涉及检测领域，具体地，涉及一种用于无损检测装置的定位支架。The invention relates to the detection field, in particular to a positioning bracket for a non-destructive testing device.
背景技术Background technique
随着科学的不断进步，越来越多的无损检测方法以及探伤装置被应用在各行各业。特别是，γ射线检测装置因其轻便、灵活、不受狭窄空间限制、不需要电源等优点，而被广泛地应用在金属无损检测中。With the continuous advancement of science, more and more non-destructive testing methods and flaw detection devices are applied in all walks of life. In particular, gamma-ray detection devices are widely used in metal non-destructive testing due to their advantages of portability, flexibility, freedom from narrow space constraints, and no need for power supplies.
γ射线检测装置包括γ射源头，曝光管，导源管，驱动机构及附件等。尤其适用于锅炉的受热面管屏(过热器、再热器，省煤器等)中的散管焊接接头进行无损检测。The γ-ray detection device includes a γ-ray source, an exposure tube, a source tube, a driving mechanism and accessories, etc. It is especially suitable for non-destructive testing of welded joints of loose tubes in tube panels on the heating surface of boilers (superheaters, reheaters, economizers, etc.).
例如新建机组过热器管安装焊缝在完成后，通常需对焊接接头进行射线检测以了解焊接焊缝质量。现有技术中的射线检测过程主要分为1、确定检测工艺以及参数；2，布置胶片、固定γ射线检测装置；3，对焦调整曝光；4，收回γ源、收回胶片，依此类推重复进行。其中，固定γ源曝光头的方法目前普遍采用橡皮筋、铁丝或绳子把曝光头固定在被检测焊缝对侧的过热器管子上或其他附近的设备上。For example, after the installation of the superheater tube of a new unit is completed, it is usually necessary to conduct radiographic inspection of the welded joints to understand the quality of the welded joints. The ray detection process in the prior art is mainly divided into 1. Determine the detection process and parameters; 2. Arrange the film and fix the γ-ray detection device; 3. Focus and adjust the exposure; 4. Recover the γ source and film, and so on. . Among them, the method of fixing the gamma source exposure head generally adopts rubber band, iron wire or rope to fix the exposure head on the superheater pipe on the opposite side of the weld to be detected or on other nearby equipment.
但是，这种固定曝光头的方法在应用于不同管径时，由于难以保持曝光头与被检测焊缝间距，而是透照角度无法得到有效的保证，对焦困难。而且由于不同的透照焦距影响透照曝光参数选择，进而是焊接接头在底片上投影的椭圆开口度不一，严重影响射线检测的质量和效果，致使底片黑度不一、清晰度不良，容易存在漏检风险等。而且橡皮筋、铁丝、绳子固定等方法还存在固定不牢的问题，容易使曝光头在作业过程中产生晃动，导致透照角度变化、投影模糊不清等，影响检测质量。However, when this method of fixing the exposure head is applied to different pipe diameters, it is difficult to maintain the distance between the exposure head and the weld to be inspected, and the transillumination angle cannot be effectively guaranteed, making it difficult to focus. Moreover, because different transillumination focal lengths affect the selection of transillumination exposure parameters, and the elliptical openings projected by welded joints on the film are not uniform, which seriously affects the quality and effect of radiographic inspection, resulting in uneven blackness and poor clarity of the film, which is easy to There is a risk of missed detection, etc. Moreover, rubber bands, iron wires, ropes and other fixing methods still have the problem of loose fixation, which easily causes the exposure head to shake during the operation process, resulting in changes in the transillumination angle and blurred projections, etc., which affect the quality of inspection.
另外，在很多工况下，管子附近根本不存在适合固定的相邻管或者设备部件，此时需要搭设支撑架，费事费力。In addition, in many working conditions, there are no adjacent pipes or equipment parts suitable for fixing near the pipes. At this time, it is necessary to build a support frame, which is laborious and laborious.
发明内容Contents of the invention
本发明所要解决的技术问题是提供一种用于无损检测装置的定位支架，利用该定位支架能够使无损检测装置固定到多种规格的待检测件上，从而即能够可靠地保证检测的质量和效果，还能够提供定位支架的通用性。The technical problem to be solved by the present invention is to provide a positioning bracket for a non-destructive testing device, which can be used to fix the non-destructive testing device to various specifications of the parts to be tested, so that the quality and quality of the testing can be reliably guaranteed. As a result, the versatility of the positioning bracket can also be provided.
为了解决上述技术问题，本发明提供一种用于无损检测装置的定位支架，所述定位支架包括用于安装到待检测件上的能够调节夹紧直径的变径夹具和设置在所述变径夹具上的无损检测装置固定架。In order to solve the above-mentioned technical problems, the present invention provides a positioning bracket for a non-destructive testing device. The positioning bracket includes a variable-diameter clamp capable of adjusting the clamping diameter for Non-destructive testing device holder on the fixture.
优选地，所述变径夹具中的用于与所述待测件接触的内表面上设置有缓冲垫。Preferably, a buffer pad is provided on the inner surface of the variable diameter jig that is used to be in contact with the object to be tested.
优选地，所述变径夹具包括夹具主体部和移动夹持部，所述移动夹持部能够相对于所述夹具主体部移动以夹紧在所述待检测件上。Preferably, the reducing jig includes a jig main body and a moving clamping part, and the moving clamping part can move relative to the jig main body so as to clamp on the object to be tested.
优选地，所述夹具主体部包括变位支撑杆、相对地设置在所述变位支撑杆前段上的固定支撑部和相对支撑部、以及设置在所述变位支撑杆后段上的变位固定部，所述移动夹持部包括前端设置有夹持部的夹持部拉杆，该夹持部拉杆贯穿所述相对支撑部和变位固定部，从而使得所述夹持部位于所述固定支撑部和相对支撑部之间，且所述夹持部拉杆的后端从所述变位固定部伸出。Preferably, the main body of the clamp includes a displacement support rod, a fixed support portion and an opposite support portion disposed oppositely on the front section of the displacement support rod, and a displacement support portion disposed on the rear portion of the displacement support rod. The fixed part, the moving clamping part includes a clamping part pull rod provided with a clamping part at the front end, and the clamping part pull rod passes through the relative support part and the displacement fixing part, so that the clamping part is positioned at the fixed Between the support part and the opposite support part, and the rear end of the clamping part pull rod protrudes from the displacement fixing part.
优选地，所述夹持部拉杆的后端设置有防脱落止挡部。Preferably, the rear end of the pull rod of the clamping part is provided with a stopper for preventing falling off.
优选地，所述移动夹持部还包括套装在所述夹持部拉杆上的复位弹簧和固定在所述夹持部拉杆上的挡板，该复位弹簧的两端分别抵接到所述变位固定部上和所述挡板上。Preferably, the moving clamping part further includes a return spring sleeved on the clamping part pull rod and a baffle fixed on the clamping part pull rod, and the two ends of the return spring respectively abut against the variable on the fixed part and on the bezel.
优选地，所述夹持部拉杆上设置有用于插入卡止件的多个定位孔，从而能够通过改变所述卡止件插入不同的所述定位孔而调整所述夹持部和所述固定支撑部之间的距离，以夹持不同直径的所述待测部件。Preferably, the pull rod of the clamping part is provided with a plurality of positioning holes for inserting the locking piece, so that the clamping part and the fixed position can be adjusted by changing the insertion of the locking piece into different positioning holes. The distance between the supporting parts is used to clamp the parts under test with different diameters.
优选地，所述无损检测装置固定架包括安装在所述夹具主体部上的连接支撑架和设置在所述连接支撑架上的用于保持无损检测装置的固定支撑架，所述固定支撑架通过万向节连接于所述连接支撑架。Preferably, the non-destructive testing device fixing frame includes a connecting support frame installed on the main body of the fixture and a fixed supporting frame for holding the non-destructive testing device arranged on the connecting support frame, and the fixed supporting frame passes through The universal joint is connected to the connecting support frame.
优选地，所述无损检测装置固定架包括安装在所述夹具主体部上的连接支撑架和设置在所述连接支撑架上的用于保持无损检测装置的固定支撑架，所述变位支撑杆为管状件或槽状件，所述连接支撑架为插入到所述变位支撑杆中的伸出杆，所述变位支撑杆的侧壁设置有安装孔，所述伸出杆通过贯穿所述安装孔的定位件固定。Preferably, the non-destructive testing device fixing frame includes a connecting support frame installed on the main body of the fixture and a fixed supporting frame arranged on the connecting support frame for holding the non-destructive testing device, and the displacement support rod It is a tubular piece or a groove-like piece, the connecting support frame is an extension rod inserted into the displacement support rod, the side wall of the displacement support rod is provided with a mounting hole, and the extension rod passes through the The locating piece of the mounting hole mentioned above is fixed.
优选地，所述固定支撑架为侧壁具有螺纹孔的U形槽件，所述无损检测装置通过与所述螺纹孔螺纹连接的螺栓抵接而固定。Preferably, the fixed support frame is a U-shaped groove with a threaded hole on the side wall, and the non-destructive testing device is fixed by abutting against a bolt threaded with the threaded hole.
通过上述技术方案，通过将变径夹具能够将无损检测装置支撑到待检测件上，从而无需在其他位置搭设支撑架，省时省力，还能够使得安装在定位支架中的无损检测装置能够以一定的姿态稳定可靠地固定在待测部件上，从而能够省却固定无损检测装置，对焦调整等时间，极大地提高了工作效率。Through the above technical solution, the non-destructive testing device can be supported on the piece to be tested by using the variable-diameter fixture, so that there is no need to set up a support frame at other positions, saving time and effort, and also enabling the non-destructive testing device installed in the positioning bracket to be installed in a certain position. The posture is stably and reliably fixed on the part to be tested, which can save the time of fixing the non-destructive testing device, focusing adjustment, etc., and greatly improves the work efficiency.
本发明的其它特征和优点将在随后的具体实施方式部分予以详细说明。Other features and advantages of the present invention will be described in detail in the detailed description that follows.
附图说明Description of drawings
附图是用来提供对本发明的进一步理解，并且构成说明书的一部分，与下面的具体实施方式一起用于解释本发明，但并不构成对本发明的限制。在附图中：The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the description, together with the following specific embodiments, are used to explain the present invention, but do not constitute a limitation to the present invention. In the attached picture:
图1是本发明所述定位支架的结构示意立体图。Fig. 1 is a schematic perspective view of the structure of the positioning bracket of the present invention.
图2是本发明所述定位支架的结构示意主视图。Fig. 2 is a schematic front view of the structure of the positioning bracket of the present invention.
图3是本发明所述定位支架的结构示意右视图。Fig. 3 is a schematic right view of the structure of the positioning bracket of the present invention.
图4是本发明所述万向节40的结构示意立体图。FIG. 4 is a schematic perspective view of the structure of the universal joint 40 of the present invention.
图5是本发明所述无损检测装置固定架20的结构示意立体图。FIG. 5 is a schematic perspective view of the structure of the non-destructive testing device fixing frame 20 of the present invention.
附图标记说明Explanation of reference signs
1 感光单元 2 待检测件1 Photosensitive unit 2 Components to be inspected
3 待测焊缝 4 导源管3 Weld seam to be tested 4 Source tube
5 曝光头5 exposure heads
10 变径夹具 11 固定支撑部10 Variable diameter clamp 11 Fixed support part
12 夹持部 13 相对支撑部12 Clamping part 13 Relative supporting part
14 挡板 15 复位弹簧14 Bezel 15 Return spring
16 变位固定部 17 夹持部拉杆16 Displacement fixed part 17 Clamping part pull rod
18 变位支撑杆 19 定位件18 Displacement support rod 19 Positioning piece
20 无损检测装置固定架 21 固定支撑架20 Non-destructive testing device fixing frame 21 Fixed support frame
22 螺栓 23 连接支撑架22 Bolts 23 Connecting the support frame
40 万向节 41 万向节固定部40 Universal joint 41 Universal joint fixed part
50 缓冲垫50 cushions
具体实施方式Detailed ways
以下结合附图对本发明的具体实施方式进行详细说明。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本发明，并不用于限制本发明。Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
在本发明中，在未作相反说明的情况下，使用的方位词如“上、下、左、右”通常是指参考附图所示的上、下、左、右；“内、外”是指相对于各部件本身的轮廓的内、外。In the present invention, in the case of no contrary description, the used orientation words such as "up, down, left and right" usually refer to the up, down, left and right shown in the accompanying drawings; "inside and outside" Refers to the inside and outside of the outline of each part itself.
本发明提供一种用于无损检测装置的定位支架，该定位支架包括用于安装到待检测件2上的能够调节夹紧直径的变径夹具10和设置在变径夹具10上的无损检测装置固定架20。The present invention provides a positioning bracket for a non-destructive testing device, the positioning bracket includes a variable-diameter fixture 10 capable of adjusting the clamping diameter and a non-destructive testing device arranged on the variable-diameter fixture 10 for being installed on a piece to be tested 2 Fixed frame 20.
如图1所示，利用变径夹具10能够将无损检测装置支撑到待检测件2上，从而无需在其他位置搭设支撑架，省时省力。这样，即使在由于过热器的布置疏密等因素影响而无法找到固定无损检测装置的合适位置的情况下，利用本发明所述定位支架也能够快速可靠地固定无损检测装置，得到较高品质的检测结果。而且，由于变径夹具10夹紧在待检测件2的周面上，使得安装在定位支架中的无损检测装置能够以一定的姿态稳定可靠地固定在待测部件2上，从而能够省却固定无损检测装置，对焦调整等时间，极大地提高了工作效率。而且，利用本发明能够有效地避免现有技术中采用橡皮筋、铁丝或绳子把曝光头固定在被检测焊缝对侧的过热器管子上或其他附近的设备上时所造成的透照角度无法保证，对焦困难的问题。As shown in FIG. 1 , the non-destructive testing device can be supported on the object 2 to be tested by using the reducing fixture 10 , so that there is no need to set up a support frame at other positions, saving time and effort. In this way, even if it is impossible to find a suitable position for fixing the non-destructive testing device due to factors such as the layout of the superheater, the positioning bracket of the present invention can be used to quickly and reliably fix the non-destructive testing device to obtain a higher quality Test results. Moreover, since the reducing fixture 10 is clamped on the peripheral surface of the test piece 2, the non-destructive testing device installed in the positioning bracket can be stably and reliably fixed on the test piece 2 with a certain posture, thereby saving the need for fixing without damage. Detection device, focus adjustment and other time, greatly improving work efficiency. Moreover, the present invention can effectively avoid the failure of the transillumination angle caused when the exposure head is fixed on the superheater pipe on the opposite side of the weld to be detected or on other nearby equipment in the prior art by using rubber bands, iron wires or ropes. Guaranteed, hard-to-focus issues.
另外，也能够使无损检测装置相对于待测部件2的姿态能够调整，关于该部分将在下面的优选实施方式中分别论述。In addition, the posture of the non-destructive testing device relative to the component under test 2 can also be adjusted, and this part will be discussed separately in the following preferred embodiments.
还有，本发明所述定位支架既能够用于夹持到圆柱状的待检测件2上，也能够用于夹持到其他形状的待检测件2上，只要将变径夹具10中与待检测件2接触的表面形成为与其他形状相适合的形状即可。In addition, the positioning bracket of the present invention can be used to be clamped to the cylindrical to-be-tested piece 2, and can also be used to be clamped to other shapes of the to-be-tested piece 2, as long as the reducing fixture 10 and the to-be-tested piece The contact surface of the detection element 2 may be formed in a shape suitable for other shapes.
变径夹具10中与待测件2接触的内表面能够设置为具有一定粗糙度的表面，例如像锉刀面那样，从而能够可靠地抱箍住待检测件2而不使其发生移动滑动。作为本发明的优选具体实施方式，变径夹具10中的用于与待测件2接触的内表面上设置有缓冲垫50。通过该缓冲垫50的设置能够避免变径夹具10直接接触待检测件2的表面而产生损伤。另外，也能够通过替换使用具有不同表面粗糙度的缓冲垫50来使用表面状况不同的待检测件2。该缓冲垫能够为橡胶垫。The inner surface of the variable diameter jig 10 that is in contact with the test piece 2 can be set as a surface with a certain roughness, such as a file surface, so that the test piece 2 can be reliably hugged without moving and sliding. As a preferred embodiment of the present invention, a buffer pad 50 is provided on the inner surface of the reducing fixture 10 for contacting with the test piece 2 . The arrangement of the buffer pad 50 can prevent the reducing jig 10 from directly contacting the surface of the object 2 to be inspected and causing damage. In addition, it is also possible to use the object to be inspected 2 having a different surface condition by replacing the cushion pad 50 having a different surface roughness. The buffer pad can be a rubber pad.
作为本发明的具体实施方式，变径夹具10包括夹具主体部和移动夹持部，移动夹持部能够相对于夹具主体部移动以夹紧在待检测件2上。例如夹具主体部和移动夹持部共同形成类似于夹子的结构，以夹紧在待检测件2上。或者夹具主体部和移动夹持部共同形成为类似三爪卡盘的结构。As a specific embodiment of the present invention, the diameter reducing jig 10 includes a jig main body and a moving clamping part, and the moving clamping part can move relative to the jig main body to clamp on the object 2 to be inspected. For example, the main body part of the clamp and the movable clamping part jointly form a structure similar to a clip, so as to be clamped on the object 2 to be tested. Or the clamp main body part and the movable clamping part are jointly formed into a structure similar to a three-jaw chuck.
作为本发明的优选具体实施方式，如图2所示，夹具主体部包括变位支撑杆18、相对地设置在变位支撑杆18前段上的固定支撑部11和相对支撑部13、以及设置在变位支撑杆18后段上的变位固定部16，移动夹持部包括前端设置有夹持部12的夹持部拉杆17，该夹持部拉杆17贯穿相对支撑部13和变位固定部16，从而使得夹持部12位于固定支撑部11和相对支撑部13之间，且夹持部拉杆17的后端从变位固定部16伸出。此时，能够通过手动调整夹持部拉杆17，使其压紧到待检测件2的周面上实现固定。As a preferred embodiment of the present invention, as shown in FIG. 2 , the clamp main body includes a displacement support rod 18, a fixed support portion 11 and an opposite support portion 13 that are relatively arranged on the front section of the displacement support rod 18, and are arranged on The displacement fixing part 16 on the rear section of the displacement support rod 18, the mobile clamping part includes a clamping part pull rod 17 with a clamping part 12 at the front end, and the clamping part pull rod 17 runs through the relative support part 13 and the displacement fixing part 16, so that the clamping part 12 is located between the fixed support part 11 and the opposite support part 13, and the rear end of the clamping part pull rod 17 protrudes from the displacement fixing part 16. At this time, the pull rod 17 of the clamping part can be manually adjusted to be pressed against the peripheral surface of the object to be detected 2 to realize fixing.
在上述技术方案的基础上，如图3所示，夹持部拉杆17的后端设置有防脱落止挡部。该防脱落止挡部相对于变位固定部16的夹持部拉杆插入口略大，因而能够将夹持部拉杆17始终维持在夹具主体部上，不会发生脱落，是本发明的定位支架操作更便利可靠。On the basis of the above technical solution, as shown in FIG. 3 , the rear end of the clamping part pull rod 17 is provided with an anti-falling stopper. The anti-falling stopper is slightly larger than the clamping part pull rod insertion opening of the displacement fixing part 16, so the clamping part pull rod 17 can always be maintained on the main body of the clamp without falling off. It is the positioning bracket of the present invention. The operation is more convenient and reliable.
作为本发明的一种优选实施方式，移动夹持部还包括套装在夹持部拉杆17上的复位弹簧15和固定在夹持部拉杆17上的挡板14，该复位弹簧15的两端分别抵接到变位固定部16上和挡板14上。这样，在将变径夹具10向待检测件2夹持时，先将夹持部拉杆17向后拉，在夹持部12和固定支撑部11之间的距离大于待检测部件2的直径情况下，将变径夹具10从待检测件2的一侧插入，在待检测件2位于变径夹具10的预定位置时，放开夹持部拉杆17，在复位弹簧15的作用下，夹持部12向固定支撑部11移动并夹持到待检测件2上。As a preferred embodiment of the present invention, the mobile clamping part also includes a return spring 15 sleeved on the clamping part pull rod 17 and a baffle plate 14 fixed on the clamping part pull rod 17, and the two ends of the return spring 15 are respectively It abuts against the displacement fixing part 16 and the baffle plate 14 . In this way, when clamping the variable-diameter clamp 10 to the part 2 to be tested, the clamping part pull rod 17 is pulled back earlier, and the distance between the clamping part 12 and the fixed support part 11 is larger than the diameter of the part 2 to be tested. Next, insert the variable-diameter jig 10 from one side of the test piece 2, and when the to-be-test piece 2 is at the predetermined position of the variable-diameter fixture 10, release the clamping part pull rod 17, and under the action of the return spring 15, clamp The part 12 moves to the fixed support part 11 and is clamped on the object 2 to be tested.
通过上述结构，在夹持到位时，可以不需要人力就能够可靠地将无损检测装置定位到待检测件2上。而且，采用该结构，能够用于夹持直径任意的管状待检测件2，只要其直径小于固定支撑部11和相对支撑部13之间的距离即可。Through the above structure, when clamped in place, the non-destructive testing device can be reliably positioned on the object to be tested 2 without manpower. Moreover, this structure can be used to clamp a tubular object 2 with any diameter, as long as its diameter is smaller than the distance between the fixed support part 11 and the opposite support part 13 .
作为本发明的另一种优选实施方式，夹持部拉杆17上设置有用于插入卡止件的多个定位孔，从而能够通过改变卡止件插入不同的定位孔而调整夹持部12和固定支撑部11之间的距离，以夹持不同直径的待测部件2。这样，在将变径夹具10向待检测件2夹持时，先将夹持部拉杆17向后拉，在夹持部12和固定支撑部11之间的距离大于待检测部件2的直径情况下，将变径夹具10从待检测件2的一侧插入，在待检测件2位于变径夹具10的预定位置时，将夹持部拉杆17向前推送，当夹持部12抵触到待检测件2后，利用卡止件插入到相应定位孔中而固定到待检测件2。As another preferred embodiment of the present invention, the clamping part pull rod 17 is provided with a plurality of positioning holes for inserting the locking pieces, so that the clamping part 12 and the fixed position can be adjusted by changing the locking pieces inserted into different positioning holes. The distance between the supporting parts 11 is used to clamp the parts to be measured 2 with different diameters. In this way, when clamping the variable-diameter clamp 10 to the part 2 to be tested, the clamping part pull rod 17 is pulled back earlier, and the distance between the clamping part 12 and the fixed support part 11 is larger than the diameter of the part 2 to be tested. Next, insert the reducing jig 10 from one side of the piece to be tested 2, when the piece to be tested 2 is located at the predetermined position of the changing jig 10, push the clamping part pull rod 17 forward, when the clamping part 12 interferes with the After detecting the piece 2, use the locking piece to insert into the corresponding positioning hole and fix it to the piece 2 to be tested.
在利用上述结构时，需要在变径夹具10中的用于与待测件2接触的内表面上设置有缓冲垫50，从而能够利用设置在夹持部12和固定支撑部11上的缓冲垫50的自身的恢复力来使无损检测装置能够可靠地保持在待检测件2上。这种结构虽然只能够用于夹持到与定位孔的位置相适应的管径的待检测件2上。但是，由于其对待检测件2表面施加的力是一定的，因此特别适用于一些无法受到较大压力的待检测件2。When using the above-mentioned structure, it is necessary to provide a buffer pad 50 on the inner surface of the reducing fixture 10 that is in contact with the test piece 2, so that the buffer pads provided on the clamping part 12 and the fixed support part 11 can be used. 50 to enable the non-destructive testing device to be reliably held on the object 2 to be tested. Although this structure can only be used for clamping on the to-be-tested piece 2 of the pipe diameter adapted to the position of the positioning hole. However, since the force exerted on the surface of the test piece 2 is constant, it is especially suitable for some test pieces 2 that cannot be subjected to relatively high pressure.
在上述技术方案的基础上，如图4所示，无损检测装置固定架20包括安装在夹具主体部上的连接支撑架23和设置在连接支撑架23上的用于保持无损检测装置的固定支撑架21，固定支撑架21通过万向节40连接于连接支撑架23一端的万向节固定部41。利用该万向节40能够进行横向360度，纵向45度调节，不但操作简单，而且能够实现精准地控制曝光头来调整透照焦距。On the basis of the above technical solution, as shown in Figure 4, the non-destructive testing device fixing frame 20 includes a connecting support frame 23 installed on the main body of the fixture and a fixed support for holding the non-destructive testing device arranged on the connecting support frame 23 Frame 21 , the fixed support frame 21 is connected to the universal joint fixing part 41 connected to one end of the support frame 23 through a universal joint 40 . The universal joint 40 can be used to adjust 360 degrees in the horizontal direction and 45 degrees in the vertical direction, which is not only easy to operate, but also can accurately control the exposure head to adjust the focal length of the transillumination.
该万向节40能够在各方向转动，但应具有一定的卡涩，从而防止胶片曝光过程中，曝光头的位置发生偏移而影响检测透照质量。The universal joint 40 can rotate in all directions, but it should have a certain degree of jamming, so as to prevent the position of the exposure head from shifting during the film exposure process and affect the quality of the transillumination test.
另外，在上述技术方案的基础上，无损检测装置固定架20包括安装在夹具主体部上的连接支撑架23和设置在连接支撑架23上的用于保持无损检测装置的固定支撑架21，变位支撑杆18为管状件或槽状件，连接支撑架23为插入到变位支撑杆18中的伸出杆，变位支撑杆18的侧壁设置有安装孔，伸出杆通过贯穿安装孔的定位件19固定。In addition, on the basis of the above technical solution, the non-destructive testing device fixing frame 20 includes a connecting support frame 23 installed on the main body of the fixture and a fixed supporting frame 21 arranged on the connecting support frame 23 for holding the non-destructive testing device. The position support rod 18 is a tubular part or a groove-shaped part, and the connecting support frame 23 is an extension rod inserted into the displacement support rod 18. The side wall of the displacement support rod 18 is provided with an installation hole, and the extension rod passes through the installation hole. The positioning piece 19 is fixed.
具体地，变位支撑杆18中的至少部分形成为管状件，连接支撑架23形成为外径比变位支撑杆18的内径小的杆件或者管状件，并插入到变位支撑杆18中，而用于保持无损检测装置的固定支架21则安装在该连接支撑架23的尾端上。因而，利用该结构能够通过调整连接支撑架23插入到变位支撑杆18中的深度来调整无损检测装置相对于待检测件2的距离，从而能够实现精准地控制曝光头来调整透照焦距。Specifically, at least part of the displacement support rod 18 is formed as a tubular member, and the connecting support frame 23 is formed as a rod or tubular member whose outer diameter is smaller than the inner diameter of the displacement support rod 18, and is inserted into the displacement support rod 18 , and the fixed bracket 21 for holding the non-destructive testing device is installed on the tail end of the connecting bracket 23 . Therefore, by using this structure, the distance of the non-destructive testing device relative to the object 2 to be tested can be adjusted by adjusting the insertion depth of the connecting support frame 23 into the displacement support rod 18 , so that the exposure head can be accurately controlled to adjust the transillumination focal length.
还有，变位支撑杆18中的至少部分也能够形成为凹槽状件，而连接支撑架23则形成为与该凹槽配合的凸杆，通过调整凸杆在凹槽状件中的位置来调整无损检测装置相对于待检测件2的距离。In addition, at least part of the displacement support rod 18 can also be formed as a groove-shaped member, and the connecting support frame 23 is formed as a protruding rod that cooperates with the groove, by adjusting the position of the protruding rod in the groove-shaped member to adjust the distance of the non-destructive testing device relative to the object 2 to be tested.
另外，在本发明所述的变位支架中，通过将变位支撑杆18和连接支撑架23所组成的用于调节距离的伸缩结构和万向节40配合使用，能够极大地提高调整焦距的灵活性，从而使变位支架能够针对不同直径的待检测件2进行灵活多样的调整，进而获得均衡一致的透照焦距，和透照角度，保证检测质量的稳定。In addition, in the displacement support according to the present invention, the telescopic structure for adjusting the distance composed of the displacement support rod 18 and the connecting support frame 23 is used in conjunction with the universal joint 40, which can greatly improve the efficiency of adjusting the focal length. Flexibility, so that the shifting bracket can be flexibly and variously adjusted for different diameters of the parts to be tested 2, and then obtain a balanced and consistent transillumination focal length and transillumination angle to ensure the stability of the detection quality.
在上述方案的技术上，如图5所示，固定支撑架21为侧壁具有螺纹孔的U形槽件，无损检测装置通过与螺纹孔螺纹连接的螺栓22抵接而固定。In the technical aspect of the above solution, as shown in FIG. 5 , the fixed support frame 21 is a U-shaped groove with a threaded hole on the side wall, and the non-destructive testing device is fixed by abutting against the bolt 22 threadedly connected with the threaded hole.
本发明尤其适用于γ射线检测装置(例如国电电力建设研究所海门探伤设备联营厂制造的DLTS-B型γ射线探伤机)，下面结合γ射线检测装置的结构进行说明，如图1所示，γ射线检测装置包括作为无损检测装置主体的导源管4，位于导源管4一端的曝光头5，该γ射线检测装置中具有射源，能够发射γ射线进行无损检测。该γ射线照射并透过待检测件2的待测焊缝3上，照射到感光单元1上。具体地，该感光单元包括铅板和胶片暗袋。The present invention is especially applicable to gamma ray detection device (such as the DLTS-B type gamma ray flaw detector manufactured by Haimen Flaw Detection Equipment Joint Venture of Guodian Electric Power Construction Research Institute), and is described below in conjunction with the structure of the gamma ray detection device, as shown in Figure 1, The gamma-ray detection device includes a source tube 4 as the main body of the non-destructive testing device, and an exposure head 5 located at one end of the source tube 4. The gamma-ray detection device has a radiation source and can emit gamma-rays for non-destructive testing. The gamma ray irradiates and passes through the weld seam 3 of the component 2 to be tested, and irradiates the photosensitive unit 1 . Specifically, the photosensitive unit includes a lead plate and a film pocket.
在此需要说明的是，本发明的定位支架能够选用厚度为2mm的铝合金材质或者扁钢作为主要材料，以在维持定位支架足够强度的基础上减轻重量，从而提高该定位支架的便携性。It should be noted here that the positioning bracket of the present invention can use aluminum alloy material or flat steel with a thickness of 2mm as the main material, so as to reduce the weight on the basis of maintaining sufficient strength of the positioning bracket, thereby improving the portability of the positioning bracket.
接着，就本发明所述变位支架的使用过程进行详细说明。Next, the use process of the displacement bracket of the present invention will be described in detail.
第一，根据待检测件2的规格尺寸、作为检测目标的待测焊缝3的焊接方法等，并结合设置在待检测件2周围其他部件的间距，按照射线检测规程，制定检测工艺，具体如：透照焦距、透照角度、射源强度、透照时间等检测工艺参数。First, according to the specifications and dimensions of the part to be tested 2, the welding method of the weld 3 to be tested as the detection target, etc., and in combination with the spacing of other components arranged around the part to be tested 2, the detection process is formulated according to the radiographic inspection regulations, specifically Such as: transillumination focal length, transillumination angle, radiation source intensity, transillumination time and other detection process parameters.
第二，按照透照焦距，透照角度，计算确定定位支架的设置参数，即变径夹具10在待检测件2上的设置位置X(该设置位置即为变径夹具10夹持位置距离待测焊缝3的长度，该距离要大于10cm以上，以便在焊缝上布置感光单元1)，伸缩杆(由变位支撑杆和伸出杆组成)的长度Y，曝光管在U型槽伸入长度Z。通过上述设置参数能够使得曝光头(放射源所在位置)、焊缝相对空间位置几何关系，符合投照工艺参数确定的透照焦距、透照角度。Second, according to the transillumination focal length and transillumination angle, calculate and determine the setting parameters of the positioning bracket, that is, the setting position X of the reducing fixture 10 on the piece 2 to be tested (the setting position is the distance between the clamping positions of the reducing fixture 10 and the distance to be tested). Measure the length of the weld 3, the distance should be greater than 10cm, so that the photosensitive unit 1) is arranged on the weld, the length Y of the telescopic rod (composed of the displacement support rod and the extension rod), and the exposure tube extends into the U-shaped groove Length Z. Through the above setting parameters, the geometric relationship of the relative spatial position of the exposure head (the location of the radiation source) and the weld seam can be made to conform to the transillumination focal length and transillumination angle determined by the projection process parameters.
第三，根据上述设置参数，在待检测件2上做好标记；调整伸出杆从变位支撑杆18中伸出的距离，在达到计算确定的位置Y，拧紧变位支撑杆18上定位件19；将导源管4伸入固定支撑架21中(U型槽)，伸入长度按照上述计算值Z。拧紧固定螺丝。Third, according to the above-mentioned setting parameters, make a mark on the part 2 to be tested; adjust the distance that the extension rod protrudes from the displacement support rod 18, and when the position Y determined by calculation is reached, tighten the position on the displacement support rod 18 Part 19; insert the source tube 4 into the fixed support frame 21 (U-shaped groove), and the length of insertion is according to the above-mentioned calculated value Z. Tighten the setscrews.
第四，拉动装置上带弹簧拉杆，将待检测管子放入夹具内，移动到管子上标记位置，松开弹簧拉杆，将管子牢牢抱箍在待检测管子标记的位置上。Fourth, the pulling device is equipped with a spring pull rod, put the pipe to be tested into the fixture, move to the marked position on the pipe, release the spring pull rod, and firmly hold the pipe at the marked position of the pipe to be tested.
第五，在待检测焊缝3上布置感光单元，具体地，该感光单元能包括胶片、透照像质计、焊缝编号铅字等，并在胶片后背贴铅防护板(厚约3mm)。用磁性吸铁将铅板、胶片固定在待检测件2上。Fifth, a photosensitive unit is arranged on the weld 3 to be detected. Specifically, the photosensitive unit can include a film, a transilluminated image quality meter, weld number lead characters, etc., and a lead protective plate (thick about 3mm) is pasted on the back of the film . Fix the lead plate and the film on the piece to be tested 2 with a magnetic iron.
第六，保证待检测焊缝3及焊缝编号铅字识别标记均投影在胶片内。Sixth, ensure that the welding seam 3 to be tested and the lead identification mark of the welding seam number are all projected on the film.
第七，将γ射线探伤机的导源管与曝光头连接。Seventh, connect the source tube of the γ-ray flaw detector to the exposure head.
第八，检查上述透照焦距、透照角度符合工艺参数要求。各种连接是否牢固。Eighth, check that the above transillumination focal length and transillumination angle meet the requirements of process parameters. Whether the various connections are firm.
第九，操γ射线探伤机的射源驱动机构，将γ射线射源输送到曝光管头部，开始曝光，曝光时间根据检测工艺参数确定。Ninth, operate the radiation source driving mechanism of the gamma-ray flaw detector to transport the gamma-ray radiation source to the head of the exposure tube, and start exposure. The exposure time is determined according to the detection process parameters.
第十，曝光完成，操作γ射线射源的射源驱动机构，将γ射线射源收回源罐，取下胶片，完成一次待检测件2的待检测焊缝3现场γ射线探伤。Tenth, after the exposure is completed, operate the radiation source driving mechanism of the gamma ray source, retract the gamma ray source to the source tank, remove the film, and complete an on-site gamma ray flaw detection of the weld 3 to be tested on the piece 2 to be tested.
另外，更换另外的待检测件2，重复上述步骤，开始下一个待检测焊缝3检测，依次类推。In addition, replace another to-be-inspected part 2, repeat the above steps, and start the inspection of the next to-be-inspected weld 3, and so on.
以上结合附图详细描述了本发明的优选实施方式，但是，本发明并不限于上述实施方式中的具体细节，在本发明的技术构思范围内，可以对本发明的技术方案进行多种简单变型，这些简单变型均属于本发明的保护范围。The preferred embodiment of the present invention has been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the specific details of the above embodiment, within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, These simple modifications all belong to the protection scope of the present invention.
另外需要说明的是，在上述具体实施方式中所描述的各个具体技术特征，在不矛盾的情况下，可以通过任何合适的方式进行组合，为了避免不必要的重复，本发明对各种可能的组合方式不再另行说明。In addition, it should be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way if there is no contradiction. The combination method will not be described separately.
此外，本发明的各种不同的实施方式之间也可以进行任意组合，只要其不违背本发明的思想，其同样应当视为本发明所公开的内容。In addition, various combinations of different embodiments of the present invention can also be combined arbitrarily, as long as they do not violate the idea of the present invention, they should also be regarded as the disclosed content of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510153049.5ACN104747886B (en) | 2015-04-01 | 2015-04-01 | Locating support for the cannot-harm-detection device |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510153049.5ACN104747886B (en) | 2015-04-01 | 2015-04-01 | Locating support for the cannot-harm-detection device |
| Publication Number | Publication Date |
|---|---|
| CN104747886Atrue CN104747886A (en) | 2015-07-01 |
| CN104747886B CN104747886B (en) | 2016-09-28 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510153049.5AActiveCN104747886B (en) | 2015-04-01 | 2015-04-01 | Locating support for the cannot-harm-detection device |
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| CN (1) | CN104747886B (en) |
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| CN112509717B (en)* | 2020-11-27 | 2023-05-02 | 中广核检测技术有限公司 | Source guiding pipe lifting device for in-service inspection of claw gaskets of control rod driving mechanism |
| CN112509717A (en)* | 2020-11-27 | 2021-03-16 | 中广核检测技术有限公司 | Source pipe pushing and lifting device for in-service inspection of claw gasket of control rod drive mechanism |
| CN114176977A (en)* | 2021-12-29 | 2022-03-15 | 杭州键嘉机器人有限公司 | Quick-assembling clamp for side guide rail of operating bed |
| CN114176977B (en)* | 2021-12-29 | 2024-08-02 | 杭州键嘉医疗科技股份有限公司 | Quick-mounting fixture for side guide rail of operating table |
| CN115299628B (en)* | 2022-08-29 | 2023-10-10 | 西南大学 | A cigarette rod clamping device |
| CN115299628A (en)* | 2022-08-29 | 2022-11-08 | 西南大学 | Tobacco rod clamping device |
| CN118330018A (en)* | 2024-04-24 | 2024-07-12 | 西南石油大学 | Portable drill rod joint detection device |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |