阅读说明：本技术 焊缝射线检测胶片暗袋固定装置 (Welding seam radiographic inspection film camera bag fixing device ) 是由 石爱玲 陈太军 谢进 谭云华 陈小明 张友文 于 2020-10-19 设计创作，主要内容包括：本发明公开了一种可一次实现整条焊缝的胶片暗袋固定的焊缝射线检测胶片暗袋固定装置,所述装置包括串联有至少两个调节滑块的固定带,所述调节滑块通过设置在调节滑块上的安装孔和与安装孔匹配的塞块与固定带连接,塞块以具有弹性的橡胶制成,调节滑块以相较于塞块具有刚性的材料制成,每个调节滑块通过一组连接定位机构与一个暗袋固定组件连接,暗袋固定组件包括定位块和与定位块可伸缩调节连接的暗袋垫片。本发明采用大面积的垫片接触,可保证胶片有效紧贴工件,提高检测底片质量,可一次实现整条焊缝的胶片暗袋固定,有效提高检测效率,尤其适用于各种规格的筒身和接管角焊缝的射线检测胶片暗袋固定。(The invention discloses a welding seam radiographic testing film camera bag fixing device capable of realizing film camera bag fixing of a whole welding seam at one time, which comprises a fixing belt connected with at least two adjusting slide blocks in series, wherein the adjusting slide blocks are connected with the fixing belt through mounting holes arranged on the adjusting slide blocks and plug blocks matched with the mounting holes, the plug blocks are made of elastic rubber, the adjusting slide blocks are made of materials with rigidity compared with the plug blocks, each adjusting slide block is connected with a camera bag fixing component through a group of connecting and positioning mechanisms, and the camera bag fixing component comprises a positioning block and a camera bag gasket connected with the positioning block in a telescopic and adjustable mode. The film camera bag fixing device adopts large-area gasket contact, can ensure that the film is effectively attached to the workpiece, improves the quality of the detection negative, can realize film camera bag fixing of the whole welding line at one time, effectively improves the detection efficiency, and is particularly suitable for radiographic detection of film camera bags of cylinder bodies and corner welding lines of connecting pipes of various specifications.)

1. Welding seam ray detection film camera bag fixing device, characterized by: the device is including establishing ties fixed band (5) that has two at least adjusting slide (6), adjusting slide (6) are connected with fixed band (5) through mounting hole (61) that set up on adjusting slide (6) and chock (62) that match with mounting hole (61), and every adjusting slide (6) are connected with a dark fixed subassembly (8) of bag through a set of connection positioning mechanism (7).

2. The weld radiographic inspection film camera bag securing apparatus according to claim 1, wherein: the camera bag fixing component (8) comprises a positioning block (81) and a camera bag gasket (82) which is connected with the positioning block (81) in a telescopic adjusting mode.

3. The weld radiographic inspection film camera bag securing apparatus according to claim 2, wherein: the camera bag gasket (82) is formed by compounding a rigid supporting plate (821) and a flexible rubber pad (822).

4. The weld radiographic inspection film camera bag securing apparatus according to claim 2, wherein: the positioning block (81) is connected with a lifting button (83), the tail end of the lifting button (83) is fixedly connected with the hidden bag gasket (82), and a spring (10) is sleeved between the lifting button (83) and the positioning block (81).

5. The weld radiographic inspection film camera bag securing apparatus according to claim 2, wherein: the connecting and positioning mechanism (7) comprises a first connecting rod (72) and a second connecting rod (74) which are hinged with each other, the first connecting rod (72) is hinged with the adjusting slide block (6), the second connecting rod (74) is connected with the positioning block (81) through a universal ball joint (75), the first connecting rod (72) and the second connecting rod (74) are connected through a supporting rod (76), and two ends of the supporting rod (76) can move and be fixed along the first connecting rod (72) and the second connecting rod (74).

6. The weld radiographic inspection film camera bag securing apparatus according to claim 5, wherein: the first connecting rod (72) and the second connecting rod (74) are both rods with sliding grooves, and two ends of the supporting rod (76) are respectively fixed on small sliding blocks (763) which are in sliding connection with the sliding grooves (761) on the first connecting rod (72) and the second connecting rod (74).

7. The weld radiographic inspection film camera bag securing apparatus according to claim 6, wherein: and a small slide block positioning device (762) acting on the sliding groove (761) is arranged on the small slide block (763).

8. The seam-welding radiographic testing film camera bag fixing device according to any one of claims 1 to 7, wherein: the fixing bands (5) are arranged side by side, and two mounting holes (61) which are arranged at intervals are correspondingly formed in the adjusting sliding blocks (6).

9. The seam-welding radiographic testing film camera bag fixing device according to any one of claims 1 to 7, wherein: a lock catch (9) with adjustable length is connected between the head end and the tail end of the fixing band (5).

10. The seam-welding radiographic testing film camera bag fixing device according to any one of claims 1 to 7, wherein: the plug (62) is made of elastic rubber, and the adjusting slider (6) is made of a material having rigidity compared with the plug (62).

Technical Field

The invention relates to the field of welding seam ray detection, in particular to a fixing device for detecting a film camera bag.

Background

With the rapid development of chemical technology, large-scale complex high-parameter chemical heat exchanger products continuously emerge, the normal operation of the products is ensured under severe operating conditions, and the quality control of welding seams becomes an important part. The fillet weld is discontinuous in structure, stress distribution is complex after bearing, stress concentration is serious, a flange is machined on the fillet weld for some important weld joints such as the fillet weld joints on the end sockets and the cylinder bodies, the joint weld joint is converted into a weld joint with an embedded structure similar to a butt weld joint, and 100% ray detection is required according to TSG 0001-2012 boiler safety technology supervision procedure and TSG21-2016 fixed pressure vessel safety technology supervision procedure, wherein the weld joints are butt weld joints and are NB/T47013.

During the ray detection of the embedded welding line, the ray detection device is arranged on one side of the welding line, and the camera bag provided with the special film for the ray detection is arranged on the other side of the welding line. Due to the special structure of the embedded welding line, the common belt binding and various tightening devices are difficult to use force and cannot be implemented. The prior hidden bag is mainly fixed by an adhesive tape or a magnetic clamp, but the adhesive tape has adhesive marks and is damaged, the subsequent process is easily influenced by the adhesive marks left on a workpiece, the magnetic clamp is in point contact, the film is easily bulged, the quality of the negative film is detected by image rays, the adhesive tape and the magnetic clamp can be fixed one by one, and the adhesive tape and the magnetic clamp are easily separated or shifted in the detection process, so that the double-shot, the image detection efficiency and the detection quality are caused.

At present, no film camera bag fixing device which can be conveniently used in fillet weld radiographic inspection exists.

Disclosure of Invention

The invention aims to solve the technical problem of providing a welding seam radiographic inspection film camera bag fixing device which can realize the fixation of the film camera bag of the whole welding seam at one time.

The technical scheme adopted by the invention for solving the technical problems is as follows: the device comprises a fixing band which is connected with at least two adjusting slide blocks in series, wherein the adjusting slide blocks are connected with the fixing band through mounting holes formed in the adjusting slide blocks and plug blocks matched with the mounting holes, and each adjusting slide block is connected with a camera bag fixing component through a group of connecting and positioning mechanisms.

The camera bag fixing component comprises a positioning block and a camera bag gasket which is connected with the positioning block in a telescopic adjusting mode.

The camera bag gasket is formed by compounding a rigid supporting plate and a flexible rubber pad.

The positioning block is connected with a lifting button, the tail end of the lifting button is fixedly connected with the hidden bag gasket, and a spring is sleeved between the lifting button and the positioning block.

The connecting and positioning mechanism comprises a first connecting rod and a second connecting rod which are hinged with each other, the first connecting rod is hinged with the adjusting slide block, the second connecting rod is connected with the positioning block through a universal ball joint, the first connecting rod and the second connecting rod are connected through a supporting rod, and two ends of the supporting rod can move and be fixed along the first connecting rod and the second connecting rod.

The first connecting rod and the second connecting rod are both rods with sliding grooves, and two ends of the supporting rod are respectively fixed on small sliding blocks which are in sliding connection with the sliding grooves on the first connecting rod and the second connecting rod.

And a small sliding block positioning device acting on the sliding groove is arranged on the small sliding block.

The fixed belts are arranged side by side, and two mounting holes arranged at intervals are correspondingly formed in the adjusting sliding block.

And a lock catch with adjustable length is connected between the head end and the tail end of the fixing band.

The chock is made of elastic rubber, and the adjusting slider is made of a material having rigidity compared with the chock.

The invention has the beneficial effects that: the film camera bag fixing device has the advantages that the film camera bag fixing device is in contact with a large-area gasket, so that the film can be guaranteed to be effectively attached to a workpiece, the quality of a detection film is improved, the film camera bag fixing device can realize fixation of the film camera bag of the whole welding line at one time, the fixing and taking-down operations are convenient, the detection efficiency can be effectively improved, and the film camera bag fixing device is suitable for fixing the film camera bag of the cylinder body and. The fixation of other equipment of fillet weld type structures can also be realized by referring to the device of the invention.

Drawings

FIG. 1 is a schematic view of a fillet weld of an embedded structure.

FIG. 2 is a schematic view of the seam radiographic testing film camera bag fixture of the present invention for camera bag attachment.

FIG. 3 is a schematic view of the camera bag securing assembly of FIG. 2.

Fig. 4 is a schematic view of the connection portion of the first connecting rod and the supporting rod in fig. 2.

Labeled as: 1-shell, 2-welding seam, 3-connecting pipe, 4-film camera bag, 5-fixing belt, 6-adjusting slide block, 7-connecting positioning mechanism, 8-camera bag fixing component, 9-lock catch, 10-spring, 61-mounting hole, 62-plug block, 71-hinge joint, 72-connecting rod I, 73-hinge joint, 74-connecting rod II, 75-universal ball joint, 76-supporting rod, 761-sliding groove 762, 762-small slide block positioning device, 763-small slide block, 81-positioning block, 82-camera bag gasket, 83-lifting button, 821-supporting plate and 822-rubber pad.

Detailed Description

The invention is further illustrated with reference to the following figures and examples.

As shown in fig. 1, 2 and 3, the welding seam radiographic testing film camera bag fixing device of the invention comprises a fixing band 5 connected in series with a plurality of adjusting sliders 6, the adjusting sliders 6 are connected with the fixing band 5 through mounting holes 61 arranged on the adjusting sliders 6 and plugs 62 matched with the mounting holes 61, wherein holes for the fixing band 5 to pass through are arranged on the plugs 62, the plugs 62 are made of elastic rubber, the adjusting sliders 6 are made of rigid material compared with the plugs 62, each plug 62 can be fixed on the fixing band 5 at a proper position by using the friction force between the rubber and the fixing band 5 and the adjusting slider 6, so that the relative position of each adjusting slider 6 and the fixing band 5 is determined, and meanwhile, each adjusting slider 6 is connected with one camera bag fixing component 8 through a group of connecting and positioning mechanisms 7, so that a plurality of camera bag fixing components 8 are arranged in a circle, and can be used for fixing a circle of film camera bags 4, so that the fixing work of all the film camera bags 4 required by the whole annular welding line can be completed at one time, and the detection efficiency can be effectively improved.

When in use, the number of the needed film camera bags 4 is determined according to the length of the annular welding line, and the adjusting slide blocks 6 with the same number are correspondingly stringed in the fixing band 5.

As shown in fig. 2, the bag fixing assembly 8 includes a positioning block 81 and a bag pad 82, the positioning block 81 is connected with a lifting button 83, the end of the lifting button 83 is fixedly connected with the bag pad 82, and a spring 10 is sleeved between the lifting button 83 and the positioning block 81, so that the bag pad 82 can be adjusted in a certain range in a telescopic manner relative to the positioning block 81, and the film bag 4 is fixed between the bag pad 82 and the housing 1 by the spring force. The camera bag gasket 82 increases the fixing area, can ensure that the film is tightly attached to the workpiece, and improves the quality of the detection film, and the camera bag gasket 82 is formed by compounding a rigid supporting plate 821 and a flexible rubber pad 822, thereby forming flexible protection for the film camera bag 4 and avoiding damaging the film.

As shown in FIG. 2, in practical application, the relative position between the film camera bag fixing position and the fixing belt needs to be adjusted, and the adjustment is realized by adjusting the position between the adjusting positioning block 81 and the adjusting slide block 6, and in particular, the invention is realized by connecting the positioning mechanism 7. The connecting and positioning mechanism 7 comprises a first connecting rod 72 and a second connecting rod 74 which are mutually hinged to a hinge point 73, the first connecting rod 72 and the adjusting slide block 6 are hinged to a hinge joint 71, the hinge joint 71 is arranged on the adjusting slide block 6, the second connecting rod 74 is connected with a positioning block 81 through a universal ball joint 75, the universal ball joint 75 is arranged on the positioning block 81, the first connecting rod 72 and the second connecting rod 74 are further connected through a supporting rod 76, two ends of the supporting rod 76 can move and be fixed along the first connecting rod 72 and the second connecting rod 74, the supporting rod 76 is used for adjusting the opening angle of the first connecting rod 72 and the second connecting rod 74 so as to determine the approximate distance between the positioning block 81 and the adjusting slide block 6, and the universal ball joint 75 is adopted for properly adjusting the orientation of the film bag gasket 82.

Referring to fig. 4, the first connecting rod 72 and the second connecting rod 74 are both rods with sliding slots, two ends of the supporting rod 76 are respectively fixed on a small sliding block 763 slidably connected with the sliding slots 761 on the first connecting rod 72 and the second connecting rod 74, and a small sliding block positioning device 762 acting on the sliding slots 761 is arranged on the small sliding block 763. After the support bar 76 is adjusted in position, it is positioned by a small slide positioning device 762. For example, the small slide positioning device 762 is a nut that can press and fix the small slide 762 on the sliding slot 761, and other positioning devices can be used.

As shown in fig. 1, be connected with adjustable length's hasp 9 between the head end of fixed band 5 and the tail end, the convenience is fixed to the takeover 3 of different diameters, and fixed band 5 has two of arranging side by side, and is corresponding be provided with two mounting holes 61 of interval arrangement on the regulating slide 6 to more firmly fix regulating slide 6 and then the position of fixed camera bag gasket 82, finally fix film camera bag 4 better.

From the above, the invention is suitable for fixing the radiographic testing film camera bags of the cylinder bodies and the connecting pipes of various specifications without the limitation of the materials of the cylinder bodies and the connecting pipes, and is a universal and practical testing device.

Example (b):

the method is explained by taking an example that an applicant finishes the radiographic inspection of the butt-joint welding seam of the barrel body connecting pipe embedded structure of a chemical container, and comprises 9 steps, wherein the steps 1 to 2 are the processing of a sliding rod part, the step 3 is the processing of a camera bag gasket part, the step 4 is a fixed belt part, and the steps 5 to 9 are the using operation of the device, and the detailed operation of each step is as follows.

Step 1: as shown in fig. 2, an L-shaped adjusting slider 6 is processed, and two mounting holes 61 and corresponding plugs 62 are processed on the adjusting slider 6, wherein the diameters of the mounting holes 61 and the plugs 62 are matched to fix the adjusting slider 6 on the fixing band 5. The body of the adjusting slider 6 is made of rigid material, such as alloy steel, and the stopper 62 can be made of slightly flexible rubber. The L-shaped adjusting slide block has the advantages that the part matched with the fixing belt can be as close to the outer wall of the connecting pipe as possible, namely firm binding can be realized, the adjusting slide block 6 can be reliably fixed, and the position far away from the outer wall of the connecting pipe in the L-shaped structure is used for installing the hinge joint 71 which is described later, so that the connecting and positioning mechanism 7 is easy to arrange and adjust and is suitable for the condition that a certain distance exists between the common welding seam position and the outer wall of the connecting pipe.

Step 2: as shown in fig. 2 and 4, the connection positioning mechanism 7 is processed, two connecting rods with appropriate lengths, namely a first connecting rod 72 and a second connecting rod 74, are prepared, the first connecting rod 72 and the second connecting rod 74 are connected through a hinge, the other end of the first connecting rod 72 is connected with a hinge joint 71, the hinge joint 71 is installed on the adjusting slide block 6, the first connecting rod 72 is connected with the adjusting slide block 6 in the step 1, and the other end of the second connecting rod 74 is connected with a universal ball joint 75. The side surfaces of the first connecting rod 72 and the second connecting rod 74 are provided with sliding grooves 761, so that the two ends of the supporting rod 76 can respectively slide on the two connecting rods and are fixed by a small slide block positioning device 762. The connecting rod and the supporting rod can be made of rigid and light alloy materials. The connecting rod type connecting and positioning mechanism 7 has a certain adjusting room in the axis direction of the connecting pipe, can adapt to the change of the distance between the position of the welding line and the outer wall of the connecting pipe through flexible adjustment in a certain range, presses and fixes the film camera bag 4 in the direction close to the positive pressure as much as possible, and has better adaptability.

And step 3: as shown in fig. 2 and 3, the processing bag fixing assembly 8, the bag fixing assembly 8 includes a positioning block 81 and a bag gasket 82, the bag gasket 82 is formed by combining a rigid supporting plate 821 and a flexible rubber pad 822, the rigid supporting plate 821 can be made of a alloy material, a lifting button 83 is connected to the positioning block 81, the end of the lifting button 83 is fixedly connected to the supporting plate 821 of the bag gasket 82, a spring 10 is sleeved on the lifting button 83, the spring 10 is located between the supporting plate 821 and the positioning block 81 and is a pressure spring, the bag gasket 82 can move in the vertical direction through the lifting button 83, and the positioning block 81 is connected to the second connecting rod 74 through a universal ball joint 75.

And 4, step 4: as shown in fig. 2, a fixing band 5 is prepared, the fixing band 5 may be made of a slightly flexible iron wire or steel wire, and a length-adjustable lock catch 9 is connected between the head end and the tail end of the fixing band 5.

And 5: and determining the number of the film transphotographs, namely the number of the film camera bags 4 according to the corresponding detection standard and the specification size of the welding seam. One film camera 4 corresponds to one of the attachment and positioning mechanisms 7 and camera mounting assemblies 8 processed in steps 1 through 3. The prepared corresponding number of connecting and positioning mechanisms 7 and the prepared corresponding number of the dark bag fixing components 8 are sleeved and fixed on the fixing belt 5 at equal intervals through the adjusting slide block 6.

Step 6: the length of the fixing band 5 is adjusted according to the specification of the connection pipe 3, and the fixing band 5 fixed with all the adjusting sliding blocks 6 is fastened on the connection pipe 3 through the lock catch 9. In this process, the height of the entire device is adjusted, preferably such that most of the camera bag gasket 82 just touches the weld 2.

And 7: the support rods 76 are adjusted according to the change of curvature of the weld 2 so that the black pocket gasket 82 of each device corresponds to the position of the weld 2.

And 8: the prepared film pouches 4 are placed one by one between the pouch gasket 82 and the weld 2. By adjusting the knob 83, the distance between the camera bag shim 82 and the weld 2 is shortened, thereby causing the film camera bag 4 to be tightly clamped between the camera bag shim 82 and the weld 2.

And step 9: the fixing of the film camera 4 for the radiographic inspection is completed after a check has been made again to confirm that all the film camera 4 has been reliably fixed.

The device of the embodiment is also suitable for fixing the inserted and riding type fillet weld radiographic inspection film camera bags and fixing other inspection equipment of fillet weld structures, and can be realized by referring to the device of the invention.