Auxiliary device for radiographic inspection of welding seam of small-diameter thin-walled tube

Abstract

The invention belongs to the field of aero-engine component manufacturing, and particularly relates to an auxiliary device for small-diameter thin-walled tube weld radiographic inspection, the auxiliary device comprises a support, a base and a clamping part, and the base is provided with a detection plane; and after the thin-walled tube is fixed by the clamping part, the to-be-detected welding seam of the thin wall is placed on the detection plane. The problems that the ray detection position of the small-diameter thin-wall guide pipe welding assembly is difficult to place and the detection efficiency is low are solved.

Description

Technical Field

[0001] The invention belongs to the field of aero-engine component manufacturing, and in particular relates to an auxiliary device for radiographic detection of welds of small-diameter thin-walled pipes. Background Art

[0002] The engine's small-diameter thin-walled duct welding assembly needs to be radiographically inspected in accordance with the standard HB20160-2014 for the duct weld area according to the requirements of the part design drawing to ensure that the duct welding quality meets the acceptance standard requirements. According to the radiographic inspection standard requirements, each pipe weld needs to be radiographed once from a 90° direction perpendicular to each other. However, since the duct assembly has undergone bending and other forming processes, most of the parts are special-shaped structures. Therefore, during radiographic inspection, to ensure that the duct is placed at a certain angle, the inspection personnel need to arrange it skillfully, and some external auxiliary tools are needed to assist. If the placement is not stable, the position of the duct changes during the inspection process, resulting in the failure of the radiography, and the need to re-radiograph, not only wastes the cost of the inspection film, but also has a very low inspection efficiency. Summary of the invention

[0003] In view of this, the present invention provides an auxiliary device for radiographic detection of small-diameter thin-walled pipe welds, which solves the problem of difficult placement of radiographic detection positions for small-diameter thin-walled pipe welding assemblies and low detection efficiency.

[0004] The specific technical scheme of the present invention is:

[0005] An auxiliary device for radiographic detection of welds of small-diameter thin-walled pipes, comprising:

[0006] Bracket;

[0007] a base, mounted above the level of the support, for placing the thin-walled tube;

[0008] A clamping portion, mounted on the base, for fixing the thin-walled tube on the base;

[0009] Wherein: a detection plane is arranged on the base, and after the clamping part fixes the thin-walled tube, the thin-walled weld to be detected is placed on the detection plane.

[0010] Furthermore, a V-shaped groove is installed on the base, and the clamping part presses down the thin-walled tube and clamps it in the V-shaped groove.

[0011] Further, the clamping portion includes a stud, a cross plate, a connecting rod mechanism, a pull rod, a pressure head and a spring;

[0012] The stud is installed on the base perpendicular to the base;

[0013] The double-ended horizontal plate is mounted on one end of the double-ended stud away from the base;

[0014] The connecting rod mechanism is mounted on one end of the transverse plate away from the base;

[0015] The pull rod is perpendicular to the base and passes through the horizontal plate, one end of which is connected to the connecting rod mechanism and the other end of which is installed with the pressure head;

[0016] The spring is sleeved on the pull rod, one end of the spring acts on the pressure head, and the other end acts on the cross plate;

[0017] The spring drives the pull rod to move toward the V-shaped groove, and the connecting rod mechanism is used to drive the pull rod away from the V-shaped groove.

[0018] Further, the connecting rod mechanism includes a connecting rod, a first rotating pin and a second rotating pin of a U-shaped seat;

[0019] The U-shaped seat is fixed to one end of the transverse plate away from the base; the middle part of the connecting rod is connected to the U-shaped seat based on the first rotating pin, and is connected to one end of the pull rod away from the base based on the second rotating pin.

[0020] Furthermore, the preload force of the spring can be adjusted.

[0021] Furthermore, the distance between the transverse plate and the base can be adjusted.

[0022] Furthermore, the base is provided with a plurality of groups of the V-shaped grooves; the number of the clamping parts is a plurality of groups, and each of the clamping parts is used to press a group of the thin-walled tubes down into the corresponding V-shaped grooves.

[0023] Furthermore, the clamping parts are arranged side by side; and the V-shaped grooves are arranged side by side.

[0024] Furthermore, the auxiliary device for radiographic detection of welds of small-diameter thin-walled tubes also includes a frame; the bracket is mounted on the frame; and movable wheels are provided at the horizontal bottom of the frame.

[0025] The beneficial effects of the present invention are as follows: the present invention can solve the problems of difficult placement of the radiographic inspection position and low inspection efficiency of the small-diameter thin-walled conduit welding assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a front view of an auxiliary device for radiographic detection of welds of small-diameter thin-walled pipes in a specific embodiment of the present invention;

[0028] Figure 2 It is a top view of an auxiliary device for radiographic detection of welds of small-diameter thin-walled pipes in a specific embodiment of the present invention;

[0029] Figure 3 It is a partial cross-sectional view of an auxiliary device for radiographic detection of welds of small-diameter thin-walled pipes in a specific embodiment of the present invention;

[0030] Figure 4 It is a partial cross-sectional view of an auxiliary device for radiographic detection of welds of small-diameter thin-walled pipes in a specific embodiment of the present invention;

[0031] Among them: 1. frame; 2. movable wheel; 3. first screw; 4. star-shaped screw; 5. handrail; 6. connecting rod; 7. first pin; 8. U-shaped seat; 9. cross plate; 10. pull rod; 11. shoulder nut; 12. hexagonal thin nut; 13. stud; 14. spring; 15. pressure block; 16. second pin; 17. V-shaped block seat; 18. base; 19. third pin; 20. second screw; 21. fixed wheel; 22. third screw; 23. fourth screw; 24. set screw; 25. fourth pin. DETAILED DESCRIPTION

[0032] The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0033] The following describes the embodiments of the present disclosure through specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present disclosure.

[0034] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present disclosure, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0035] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present disclosure. The drawings only show components related to the present disclosure rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0036] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects described may be practiced without these specific details.

[0037] In one embodiment of the present invention, an auxiliary device for radiographic detection of welds of small-diameter thin-walled pipes is provided. Figure 1-4 As shown, including:

[0038] Bracket;

[0039] A base 18, mounted above the level of the support, for placing the thin-walled tube;

[0040] A clamping portion, mounted on the base 18, for fixing the thin-walled tube on the base 18;

[0041] Wherein: a detection plane is arranged on the base 18, and after the clamping part fixes the thin-walled tube, the thin-walled weld to be detected is placed on the detection plane.

[0042] In this embodiment, a V-shaped groove is installed on the base 18, and the clamping part presses down the thin-walled tube and clamps it in the V-shaped groove.

[0043] In this embodiment, the clamping portion includes a stud 13, a cross plate 9, a connecting rod 6 mechanism, a pull rod 9, a pressure head and a spring 14;

[0044] The stud bolt 13 is installed on the base 18 perpendicularly to the base 18;

[0045] The double-ended horizontal plate 9 is mounted on one end of the double-ended stud 13 away from the base 18;

[0046] The connecting rod 6 mechanism is installed at one end of the horizontal plate 9 away from the base 18;

[0047] The pull rod 10 is perpendicular to the base 18 and passes through the horizontal plate 9, one end of which is connected to the connecting rod 6 mechanism, and the other end of which is installed with the pressure head;

[0048] The spring 14 is sleeved on the pull rod 10, one end of which acts on the pressure head, and the other end of which acts on the horizontal plate 9;

[0049] The spring 14 drives the pull rod 10 to move toward the V-shaped groove, and the connecting rod 6 mechanism is used to drive the pull rod 10 away from the V-shaped groove.

[0050] In this embodiment, the connecting rod 6 mechanism includes a connecting rod 6, a first rotating pin and a second rotating pin of a U-shaped seat 8;

[0051] The U-shaped seat 8 is fixed to one end of the cross plate 9 away from the base 18; the middle part of the connecting rod 6 is connected to the U-shaped seat 8 based on the first rotating pin, and is connected to one end of the pull rod 10 away from the base 18 based on the second rotating pin.

[0052] In this embodiment, a plurality of groups of the V-shaped grooves are provided on the base 18; the number of the clamping parts is a plurality of groups, and each of the clamping parts is used to press a group of the thin-walled tubes down into the corresponding V-shaped grooves.

[0053] In this embodiment, the clamping portions are arranged side by side; and the V-shaped grooves are arranged side by side.

[0054] In this embodiment, the auxiliary device for radiographic detection of welds of small-diameter thin-walled pipes further comprises a frame 1 ; the bracket is mounted on the frame 1 .

[0055] In this embodiment, a movable wheel 2 is provided at the horizontal bottom of the frame 1 .

[0056] In this embodiment, the preload force of the spring 14 can be adjusted.

[0057] In this embodiment, the distance between the transverse plate 9 and the base 18 can be adjusted.

[0058] In some embodiments, the spring 14 of this embodiment is provided with an adjustment knob. By adjusting the adjustment knob, the height and pressure of the pressure rod can be adjusted, and the clamping of small diameter thin-walled tubes of 6-45mm can be achieved, thereby quickly ensuring the fixed detection position and angle requirements of the X-ray detection of small diameter thin-walled catheter welding assemblies, thereby improving the detection efficiency.

[0059] The auxiliary device for radiographic detection of small-diameter thin-walled pipe welds in this embodiment includes, as shown in 1-4, a frame 1, a movable wheel 2, a first screw 3, a star screw 4, a handrail 5, a connecting rod 6, a first pin 7, a U-shaped seat 8, a cross plate 9, a pull rod 10, a shoulder nut 11, a hexagonal thin nut 12, a stud 13, a spring 14, a pressure block 15, a second pin 16, a V-block seat 17, a base 18, a third pin 19, a second screw 20, a fixed wheel 21, a third screw 22, a fourth screw 23, a set screw 24, and a fourth pin 25.

[0060] The auxiliary device for radiographic detection of small-diameter thin-walled pipe welds in this embodiment is designed and manufactured based on the specifications and dimensions of small-diameter conduit welding assemblies commonly used in engines, and a corresponding adjustable pressure fixing device is designed and manufactured to be suitable for radiographic detection of small-diameter conduit welding assemblies with a diameter of 6-45 mm. All materials are made of steel and are painted with anti-rust paint.

[0061] The auxiliary device for radiographic inspection of welds of small-diameter thin-walled tubes in this embodiment is provided with a frame 1 and movable wheels 2, which facilitates on-site position adjustment according to the length and specification of the parts and the inspection transillumination layout.

[0062] The present embodiment adopts the combination of connecting rod 6, cross plate 9, pull rod 10, shoulder nut 11, hexagonal thin nut 12, spring 14, second pin 16, and V-block seat 17 to form a small diameter pipe fixing device (clamping part). The pressure of fixing the pipe can be adjusted according to the diameter of the small diameter pipe to be inspected and the tightness of spring 14. The height can be adjusted by adjusting cross plate 9, shoulder nut 11, and hexagonal thin nut 12. V-block seat 17 can be used for pipe welding components with a diameter of 6-45mm to be in a stable state in the V-groove to prevent the pipe position from slipping.

[0063] In this embodiment, the base 18 is combined with the frame 1 to form a film placement area, and the fixed position can be adjusted according to the detection position of the catheter weld to meet the requirements of film placement in the detection area.

[0064] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An auxiliary device for radiographic detection of welds of small-diameter thin-walled pipes, characterized in that: include: Bracket; a base, mounted above the level of the support, for placing the thin-walled tube; A clamping portion, mounted on the base, for fixing the thin-walled tube on the base; Wherein: a detection plane is arranged on the base; after the thin-walled tube is fixed by the clamping part, the thin-walled weld to be detected is placed on the detection plane.

2. The auxiliary device for radiographic detection of small diameter thin-walled pipe welds according to claim 1 is characterized in that: A V-shaped groove is installed on the base, and the clamping part presses down the thin-walled tube and clamps it in the V-shaped groove.

3. The auxiliary device for radiographic detection of small diameter thin wall pipe welds according to claim 2, characterized in that: The clamping part includes a stud, a horizontal plate, a connecting rod mechanism, a pull rod, a pressure head and a spring; The stud is installed on the base perpendicular to the base; The double-ended horizontal plate is mounted on one end of the double-ended stud away from the base; The connecting rod mechanism is mounted on one end of the transverse plate away from the base; The pull rod is perpendicular to the base and passes through the horizontal plate, one end of which is connected to the connecting rod mechanism and the other end of which is installed with the pressure head; The spring is sleeved on the pull rod, one end of the spring acts on the pressure head, and the other end acts on the cross plate; The spring drives the pull rod to move toward the V-shaped groove, and the connecting rod mechanism is used to drive the pull rod away from the V-shaped groove.

4. The auxiliary device for radiographic detection of small diameter thin wall pipe welds according to claim 3, characterized in that: The connecting rod mechanism comprises a connecting rod, a first rotating pin and a second rotating pin of a U-shaped seat; The U-shaped seat is fixed to one end of the transverse plate away from the base; the middle part of the connecting rod is connected to the U-shaped seat based on the first rotating pin, and is connected to one end of the pull rod away from the base based on the second rotating pin.

5. The auxiliary device for radiographic detection of small diameter thin wall pipe welds according to claim 4, characterized in that: The preload force of the spring can be adjusted.

6. The auxiliary device for radiographic detection of small diameter thin wall pipe welds according to claim 5, characterized in that: The distance between the transverse plate and the base can be adjusted.

7. The auxiliary device for radiographic detection of small diameter thin wall pipe welds according to claim 6, characterized in that: The base is provided with a plurality of groups of the V-shaped grooves; the number of the clamping parts is a plurality of groups, and each of the clamping parts is used to press a group of the thin-walled tubes down into the corresponding V-shaped grooves.

8. The auxiliary device for radiographic detection of small diameter thin wall pipe welds according to claim 7, characterized in that: The clamping parts are arranged side by side; and the V-shaped grooves are arranged side by side.

9. The auxiliary device for radiographic detection of small diameter thin wall pipe welds according to claim 8, characterized in that: The auxiliary device for radiographic detection of weld seams of small-diameter thin-walled pipes also includes a frame; the bracket is mounted on the frame; and movable wheels are arranged at the horizontal bottom of the frame.

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