Ray transillumination detection arrangement tool and detection method for inner receiver of helicopter engine

Abstract

The invention discloses a ray transillumination detection arrangement tool and a detection method for a receiver in a helicopter engine, and relates to the technical field of product ray detection. A support frame; and a rotating disc. One end of the detected workpiece is locked through the fixing piece on the rotating disc, meanwhile, the bearing assembly supports the inner wall of the detected workpiece, and meanwhile, an acquisition film can be arranged on the bearing assembly, so that the wall seam condition of the detected workpiece is acquired; and then one end of the rotation adjusting assembly and one end of the second limiting assembly integrally drive the bearing assembly to cooperate with the rotating disc to drive the detected workpiece to perform detection position adjustment, so that the detection position adjustment work of the detected workpiece is completed. The detection arrangement tool does not need multiple persons to cooperate for detection work, and the whole detection process is simple and convenient. The defect that in the prior art, transillumination arrangement detection of the helicopter engine inner case is extremely inconvenient is effectively overcome.

Description

Technical Field

[0001] The invention relates to the technical field of product radiation detection, and in particular to a helicopter engine inner casing radiation transillumination detection arrangement tool and a detection method. Background Art

[0002] At present, when performing X-ray inspection on the inner casing of a helicopter engine, since the inner casing of a helicopter engine is a ring structure, the product is generally padded with wooden blocks for arrangement of X-ray inspection. At the same time, in order to prevent the product from tipping over, at least two people are required, one person holds the product steady, and the other person places the wooden pad next to the product, and then a film is placed on the inspection area for arrangement inspection, which makes it extremely inconvenient to arrange the X-ray inspection of the inner casing of a helicopter engine, resulting in low inspection efficiency. Summary of the invention

[0003] The purpose of the present invention is to solve the disadvantage of the prior art that it is extremely inconvenient to perform radiographic detection on the inner casing of a helicopter engine, and to propose a tool and a detection method for the radiographic detection arrangement of the inner casing of a helicopter engine.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] In a first aspect, the present invention provides a helicopter engine inner casing radiographic inspection arrangement tool, comprising:

[0006] Base;

[0007] A support frame, wherein the support frame is arranged on one side of the base, and the arrangement direction of the support frame is perpendicular to the arrangement direction of the base;

[0008] A rotating disk, the rotating disk is arranged at one side of the support frame, the rotating disk is arranged parallel to the support frame, a surface of the rotating disk away from the support frame is provided with a plurality of fixing members, the plurality of fixing members are distributed in a circular array along the rotating disk, and the fixing members are used to cooperate with the rotating disk to lock and support one end of the inspected workpiece;

[0009] A rotation adjustment component, wherein the rotation adjustment component sequentially passes through the support frame and the rotating disk, one end of the rotation adjustment component is rotationally connected to the support frame, and the other end of the rotation adjustment component is connected to the rotating disk, and the setting direction of the rotation adjustment component is parallel to the setting direction of the base;

[0010] A first limiting assembly, wherein the first limiting assembly is disposed on the support frame, the first limiting assembly is located at one side of the rotating disk, the limiting direction of the first limiting assembly is perpendicular to the outer circumference of the rotating disk, and the first limiting assembly is used to abut against and limit the rotating disk to rotate;

[0011] A bearing assembly, the bearing assembly is arranged on the rotating disk, the bearing assembly is located on a surface away from the supporting frame, and the bearing assembly is used to bear and support the inner wall of the inspected workpiece and collect the inner wall conditions of the inspected workpiece;

[0012] A second limiting component, wherein the second limiting component passes through the rotation adjustment component, one end of the second limiting component is connected to the bearing component, and the other end of the second limiting component is detachably connected to the rotation adjustment component.

[0013] In some feasible solutions, the rotation adjustment component includes:

[0014] A rotating sleeve, one end of which passes through the support frame and the rotating disk in sequence, a fixed sleeve is provided on the outer sleeve of the rotating sleeve, and the rotating sleeve is rotatably connected to the support frame through the fixed sleeve;

[0015] A first locking disk, the first locking disk is disposed on one surface of the rotating disk, and the first locking disk is located away from the supporting frame, and the first locking disk is fixedly connected to the rotating disk;

[0016] The second locking plate is arranged on one end of the rotating sleeve that passes through the rotating plate. The second locking plate is located on a side of the rotating plate away from the supporting frame. The second locking plate is connected to the first locking plate.

[0017] In some feasible solutions, the first limiting component includes:

[0018] A limit block, wherein the limit frame is in an inverted L shape, one end of the limit frame is detachably arranged on the support frame, and the other end of the limit frame is located above the rotating disk;

[0019] A limiting rod, the limiting rod passes through the other end of the limiting frame, the setting direction of the limiting rod is perpendicular to the outer circumference of the rotating disk, and the limiting rod is threadedly connected to the limiting frame;

[0020] The limit block is arranged on one side of the rotating disk, a limit slot is arranged on the limit block, the limit slot is clamped on the outer circumference of the rotating disk, and the limit block is rotatably connected to the limit rod away from the limit slot.

[0021] In some feasible solutions, the bearing assembly includes:

[0022] A rotating shaft, one end of which passes through the rotating sleeve, the first locking plate and the second locking plate in sequence and extends to a side away from the support frame, and the rotating shaft is rotatably connected within the rotating sleeve, the first locking plate and the second locking plate;

[0023] A locking member, the locking member is in the shape of a plate, one end of the locking member is sleeved on the end of the rotating shaft extending away from the supporting frame, and the setting direction of the locking member is perpendicular to the setting direction of the rotating shaft;

[0024] The bearing plate is arc-shaped, one end of the bearing plate is arranged at the other end of the locking member, the bearing plate is rotatably connected to the rotating sleeve through the locking member, and the arc-shaped side of the bearing plate is located inside the inspected workpiece.

[0025] In some feasible solutions, the locking member includes:

[0026] A first connecting plate, one end of which is sleeved on the rotating shaft, and a plurality of locking holes are provided on the first connecting plate;

[0027] A second connecting plate, the second connecting plate is arranged in parallel with the first connecting plate, the second connecting plate is provided with strip holes, the arrangement positions of the strip holes correspond to the plurality of locking holes, and one end of the second connecting plate is arranged on one end of the bearing plate;

[0028] A connecting piece, wherein the connecting piece passes through the strip hole and the locking hole in sequence, and the connecting piece is threadedly connected to the locking hole.

[0029] In some feasible solutions, the rotating sleeve is provided with a locking hole at one end away from the rotating disk; the second limiting assembly includes:

[0030] A clamping piece, one end of which is abutted and connected to the rotating shaft through a locking hole, and the clamping piece is threadedly connected to the locking hole.

[0031] In a second aspect, the present invention provides a helicopter engine inner casing radiographic inspection method, which adopts a helicopter engine inner casing radiographic inspection arrangement tool as described in any one of the first aspects.

[0032] In some feasible solutions, the detection method includes:

[0033] Obtain the circumferential outer diameter information of the inspected workpiece, determine the position of each equally divided inspection area on the inspected workpiece, and connect the inspected workpiece to the rotating disk through a fixing member;

[0034] According to the position of each equally divided detection area on the inspected workpiece, the acquisition receiving surface information of the inspected workpiece is determined, and according to the acquisition receiving surface information of the inspected workpiece, the acquisition film is selected;

[0035] According to the position of each equally divided detection area on the inspected workpiece, determine the order of transillumination collection work and determine the first transillumination collection position;

[0036] According to the first transillumination collection position, the collection film is arranged on the carrying plate of the carrying assembly, so that the collection film is located between the inner wall of the inspected workpiece and the carrying plate of the carrying assembly, and specific marks are arranged at the transillumination collection positions of the carrying plate and the inspected workpiece to complete the transillumination arrangement;

[0037] According to the first transillumination collection position, the transillumination radiation source position is set so that the transillumination position of the transillumination radiation source is perpendicular to the first transillumination collection position;

[0038] The transillumination work is started, and the transillumination radiation source is allowed to perform transillumination detection on the first transillumination collection position, and at this time, the collection film collects the transillumination situation of the first transillumination collection position;

[0039] According to the position of each equally divided detection area on the inspected workpiece and the order of transillumination acquisition work, according to the transillumination condition of the first transillumination acquisition position acquired by the acquisition film, the other transillumination acquisition positions on the inspected workpiece are rotated in sequence to determine the transillumination condition of each equally divided detection area position on the inspected workpiece;

[0040] The qualified information of the inspected workpiece is determined based on the transillumination conditions of each equally divided inspection area on the inspected workpiece.

[0041] In some feasible solutions, the method of determining the transillumination condition of each equally divided inspection area position on the inspected workpiece includes:

[0042] Determine the next transillumination acquisition position of the inspected workpiece according to the position of each equally divided inspection area on the inspected workpiece and the transillumination acquisition work order;

[0043] According to the next transillumination collection position of the inspected workpiece, the first limit assembly is separated from the rotating disk, and the second limit assembly is separated from the rotating adjustment assembly. The inspected workpiece on the rotating disk is driven by the rotating adjustment assembly to change the transillumination collection position, so that the next transillumination collection position of the inspected workpiece is above the carrying assembly, and the collection film and specific mark of the current transillumination collection position are replaced and installed;

[0044] The first limit assembly is locked with the rotating disk, and the second limit assembly is locked with the rotating adjustment assembly at the same time, and the transillumination work is started, and the transillumination radiation source is allowed to perform transillumination detection on the current transillumination collection position, and the transillumination situation collection of the current transillumination collection position on the inspected workpiece is completed;

[0045] Repeat the above work and collect the radiography conditions of each equally divided inspection area on the inspected workpiece in turn according to the radiography collection work sequence.

[0046] In some feasible solutions, the methods for determining the qualified information of the inspected workpiece include:

[0047] According to the acquisition films at different transillumination acquisition positions, the transillumination image of each equally divided detection area on the inspected workpiece is determined;

[0048] Performing image processing on the transillumination image of each equally divided detection area position on the inspected workpiece to determine the image feature information of the transillumination image of each equally divided detection area position on the inspected workpiece;

[0049] Determine the position of the abnormal area on the inspected workpiece according to the image feature information of the transillumination situation of each equally divided inspection area on the inspected workpiece;

[0050] According to the position of the abnormal area on the inspected workpiece and the size of the image feature area of ​​the abnormal area on the inspected workpiece, the qualified information of the inspected workpiece is determined.

[0051] The beneficial effects of the present invention are:

[0052] The present invention locks one end of the inspected workpiece by a fixing on a rotating disk, and allows the bearing assembly to support the inner wall of the inspected workpiece. At the same time, a collection film can be set on the bearing assembly to complete the collection of the wall seam conditions of the inspected workpiece, and then the rotating adjustment assembly and one end of the second limit assembly are integrally driven to drive the bearing assembly to cooperate with the rotating disk to drive the inspected workpiece to adjust the inspection position, thereby completing the inspection position adjustment work of the inspected workpiece. That is, the detection arrangement tool does not require multiple people to cooperate in the detection work, and the overall detection process is simple. That is, it effectively solves the disadvantage of the prior art that it is extremely inconvenient to arrange the transmission detection of the inner casing of the helicopter engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 A schematic diagram of the use of a helicopter engine inner casing radiographic inspection arrangement tool provided in an embodiment of the present invention;

[0054] Figure 2 It is a schematic diagram of the overall structure of a helicopter engine inner casing radiographic inspection arrangement tooling provided in an embodiment of the present invention;

[0055] Figure 3 It is a structural exploded schematic diagram (first perspective) of a rotation adjustment assembly in a helicopter engine inner casing radiographic inspection arrangement provided in an embodiment of the present invention;

[0056] Figure 4It is a schematic structural explosion diagram (second viewing angle) of a rotation adjustment assembly in a helicopter engine inner casing radiographic inspection arrangement provided in an embodiment of the present invention;

[0057] Figure 5 It is a schematic diagram of the structural explosion of a first limiter assembly in a helicopter engine inner casing radiographic inspection arrangement provided in an embodiment of the present invention.

[0058] The markings in the figure are as follows:

[0059] 1. Base; 11. Support frame; 12. Fixing sleeve;

[0060] 2. Rotation adjustment assembly; 21. Rotation disk; 211. Fixing member; 22. Rotation sleeve; 221. First locking disk; 222. Second locking disk;

[0061] 3. First limiting assembly; 31. Limiting block; 32. Limiting rod; 33. Limiting frame;

[0062] 4. The workpiece to be inspected;

[0063] 5. Carrying assembly; 51. Carrying plate; 52. First connecting plate; 521. Second connecting plate; 522. Connecting piece; 53. Rotating shaft; 531. Clamping piece. DETAILED DESCRIPTION

[0064] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0065] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0066] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0067] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0068] Reference Figures 1 to 5In order to solve the problem of the inconvenience of the radiographic inspection arrangement of the helicopter engine inner casing in the prior art, the present invention provides a helicopter engine inner casing radiographic inspection arrangement tooling in this embodiment. The inspected workpiece 4 (i.e., the helicopter engine inner casing) is sleeved on the inspection arrangement tooling, and the inspection arrangement tooling includes: a base 1, a support frame 11, a rotating disk 21, a rotation adjustment component 2, a first limit component 3, a bearing component 5, and a second limit component. The base 1 is plate-shaped and horizontally arranged on the ground to form a detection platform. The support frame 11 is arranged on one side of the base 1, and the arrangement direction of the support frame 11 is perpendicular to the arrangement direction of the base 1, so that the support frame 11 and the base 1 form a vertical support. The rotating disk 21 is arranged on one side of the support frame 11, and the rotating disk 21 is arranged parallel to the support frame 11. A plurality of fixing parts 211 are arranged on the side of the rotating disk 21 away from the support frame 11. The fixing parts 211 are distributed in a circular array along the rotating disk 21, and the fixing parts 211 are used to cooperate with the rotating disk 21 to lock and support one end of the inspected workpiece 4. The rotation adjustment component sequentially passes through the support frame 11 and the rotating disk 21, one end of the rotation adjustment component is connected to the support frame 11 for rotation, and the other end of the rotation adjustment component is connected to the rotating disk 21, and the setting direction of the rotation adjustment component is parallel to the setting direction of the base 1. That is, the rotation adjustment component drives the rotating disk 21 to rotate on the support frame 11, and cooperates with the rotating disk 21 to drive the inspected workpiece 4 to adjust the detection position. The first limiting component 3 is arranged on the support frame 11, and the first limiting component 3 is located on one side of the rotating disk 21. The limiting direction of the first limiting component 3 is perpendicular to the outer periphery of the rotating disk 21, and the first limiting component 3 is used to abut and limit the rotation of the rotating disk 21. The bearing component 5 is arranged on the rotating disk 21, and the bearing component 5 is located on a side away from the support frame 11. The bearing component 5 is used to support the inner wall of the inspected workpiece 4, and collect the inner wall conditions of the inspected workpiece 4 at the same time, so as to cooperate with the fixing part 211 on the rotating disk 21 to fix the inspected workpiece 4. The second limiting component runs through the rotation adjustment component 2, one end of the second limiting component is connected to the bearing component 5, and the other end of the second limiting component is detachably connected to the rotation adjustment component 2. That is, the second limiting component passes through the rotation adjustment component 2 and rotates inside the rotation adjustment component 2. One end of the second limiting component drives the supporting component 5 to cooperate with the rotating disk 21 to drive the inspected workpiece 4 to adjust the detection position. When the detection position does not need to be adjusted, the other end of the second limiting component is connected to the rotation adjustment component 2 for limiting, so as to fix the position of the supporting component 5.That is, in this embodiment, one end of the inspected workpiece 4 is locked by the fixing member 211 on the rotating disk 21, and the inner wall of the inspected workpiece 4 is supported by the bearing assembly 5. At the same time, a collection film can be set on the bearing assembly 5 to complete the collection of the wall seam of the inspected workpiece 4, and then the rotating adjustment assembly 2 and one end of the second limit assembly are integrally driven to drive the bearing assembly 5 to cooperate with the rotating disk 21 to drive the inspected workpiece 4 to adjust the detection position, thereby completing the inspection position adjustment work of the inspected workpiece 4. That is, this detection arrangement tool does not require multiple people to cooperate in the detection work, and the overall detection process is simple. That is, it effectively solves the disadvantage of the existing technology that it is extremely inconvenient to arrange the transmission detection of the inner casing of the helicopter engine.

[0069] Reference Figure 3 and Figure 4 In this embodiment, in order to achieve the detection position of the workpiece 4 to be detected by rotating the rotating disk 21, the rotation adjustment assembly 2 includes: a rotating sleeve 22, a first locking disk 221 and a second locking disk 222. One end of the rotating sleeve 22 passes through the support frame 11 and the rotating disk 21 in sequence, and the outer sleeve of the rotating sleeve 22 is provided with a fixed sleeve 12. The rotating sleeve 22 is rotatably connected to the support frame 11 through the fixed sleeve 12, that is, the fixed sleeve 12 is fixedly connected to the support frame 11, and the rotating sleeve 22 rotates inside the fixed sleeve 12. The first locking disk 221 is arranged on one side of the rotating disk 21, and the first locking disk 221 is located away from the support frame 11, and the first locking disk 221 is fixedly connected to the rotating disk 21. The second locking disk 222 is arranged on one end of the rotating sleeve 22 that passes through the rotating disk 21, and the second locking disk 222 is located on the side of the rotating disk 21 away from the support frame 11, and the second locking disk 222 is connected to the first locking disk 221. That is, the rotating disk 21 is detachably connected to the rotating sleeve 22 via the first locking disk 221 and the second locking disk 222 , so that the rotating sleeve 22 can drive the rotating disk 21 to rotate.

[0070] Reference Figure 4 and Figure 5In this embodiment, in order to enable the rotating disk 21 to fix the adjusted position of the rotating disk 21, the first limiting assembly 3 includes: a limiting block 31, a limiting frame 33 and a limiting rod 32. The limiting frame 33 is in an inverted L shape, one end of the limiting frame 33 is detachably arranged on the support frame 11 by a bolt, and the other end of the limiting frame 33 is located above the rotating disk 21. The limiting rod 32 passes through the other end of the limiting frame 33, the setting direction of the limiting rod 32 is perpendicular to the outer periphery of the rotating disk 21, and the limiting rod 32 is threadedly connected to the limiting frame 33. The limiting block 31 is arranged on one side of the rotating disk 21, and a limiting groove is arranged on the limiting block 31, and the limiting groove is clamped on the outer periphery of the rotating disk 21, and the limiting block 31 is rotatably connected to the limiting rod 32 away from the limiting groove. That is, in this embodiment, by vertically moving the limiting rod 32 , the limiting groove on the limiting block 31 is driven to be tightly clamped on the rotating disk 21 , so as to achieve the rotation limiting of the rotating disk 21 .

[0071] Reference Figure 5In this embodiment, in order to facilitate the use of film to collect the wall crack conditions of the inspected workpiece 4, the bearing assembly 5 includes: a bearing plate 51, a rotating shaft 53 and a locking member. One end of the rotating shaft 53 passes through the rotating sleeve 22, the first locking disk 221 and the second locking disk 222 in sequence, and extends to a side away from the support frame 11. The rotating shaft 53 is rotatably connected in the rotating sleeve 22, the first locking disk 221 and the second locking disk 222. The locking member is in the shape of a plate, and one end of the locking member is sleeved on the end of the rotating shaft 53 extending away from the support frame 11. The setting direction of the locking member is perpendicular to the setting direction of the rotating shaft 53, so that the rotating shaft 53 can drive the locking member to rotate. The bearing plate 51 is arc-shaped, one end of the bearing plate 51 is arranged at the other end of the locking member, the bearing plate 51 is rotatably connected with the rotating sleeve 22 through the locking member, the arc-shaped side of the bearing plate 51 is located inside the inspected workpiece 4, the bearing plate 51 can collect the wall seam conditions of the inspected workpiece 4 by arranging a film on the arc-shaped side, and can also detect and support the inspected workpiece 4. In this embodiment, in order to enable the bearing plate to detect and support the inspected workpieces 4 of different sizes, the locking member includes: a first connecting plate 52, a second connecting plate 521 and a connecting member 522. One end of the first connecting plate 52 is sleeved on the rotating shaft 53, and the first connecting plate 52 is provided with a plurality of locking holes (not marked in the figure). The second connecting plate 521 is arranged parallel to the first connecting plate 52, and the second connecting plate 521 is provided with a strip hole (not marked in the figure), and the setting position of the strip hole corresponds to the plurality of locking holes, and one end of the second connecting plate 521 is arranged on one end of the bearing plate 51. The connecting member 522 passes through the strip hole and the locking hole in sequence, and the connecting member 522 is threadedly connected to the locking hole. That is, through the locking position of the connecting member 522 in the strip hole and the locking hole, the first connecting plate 52 and the second connecting plate 521 are moved and unfolded, and the common length of the first connecting plate 52 and the second connecting plate 521 is adjusted, that is, the bearing height of the bearing plate 51 is adjusted, so as to realize the detection support of the inspected workpieces 4 of different sizes.

[0072] Reference Figure 2 , Figure 3 and Figure 4In this embodiment, in order to achieve the ability to individually adjust the bearing assembly 5 to support the detection position of the inspected workpiece 4, the rotating sleeve 22 is provided with a locking hole at one end away from the rotating disk 21, and the second limiting assembly abuts against the rotating shaft 53 inside the rotating sleeve 22 through the locking hole. Specifically, the second limiting assembly includes: a clamping member 531, one end of the clamping member 531 abuts against the rotating shaft 53 through the locking hole, and the clamping member 531 is threadedly connected to the locking hole. That is, in this embodiment, after the bearing plate 51 is rotated and adjusted by the rotating shaft 53, the rotation of the rotating shaft 53 is limited by allowing the clamping member 531 to abut against the rotating shaft 53 inside the rotating sleeve 22, thereby limiting the rotation of the rotating shaft 53, thereby achieving the adjustment and limitation of the detection position of the bearing plate 51.

[0073] In the second aspect, in order to solve the problem of the inconvenience of the prior art in the radiographic detection of the internal casing of a helicopter engine, this embodiment also provides a method for the radiographic detection of the internal casing of a helicopter engine, wherein the detection method adopts the above-mentioned tooling for the radiographic detection of the internal casing of a helicopter engine. The detection method also includes:

[0074] Obtain the circumferential outer diameter information of the inspected workpiece 4, determine the position of each equally divided inspection area on the inspected workpiece 4, and connect the inspected workpiece to the rotating disk 21 through the fixing member 211;

[0075] According to the position of each equally divided detection area on the inspected workpiece 4, the acquisition receiving surface information of the inspected workpiece 4 is determined, and according to the acquisition receiving surface information of the inspected workpiece 4, the acquisition film is selected;

[0076] According to the position of each equally divided detection area on the inspected workpiece 4, the order of transillumination collection work is determined, and the first transillumination collection position is determined;

[0077] According to the first transillumination acquisition position, the acquisition film is arranged on the carrying plate of the carrying assembly 5, so that the acquisition film is located between the inner wall of the inspected workpiece 4 and the carrying plate of the carrying assembly 5, and specific marks are arranged on the carrying plate and the transillumination acquisition position of the inspected workpiece 4 to complete the transillumination arrangement;

[0078] According to the first transillumination collection position, the transillumination radiation source position is set so that the transillumination position of the transillumination radiation source is perpendicular to the first transillumination collection position;

[0079] The transillumination work is started, and the transillumination radiation source is allowed to perform transillumination detection on the first transillumination collection position, and at this time, the collection film collects the transillumination situation of the first transillumination collection position;

[0080] According to the position of each equally divided detection area on the inspected workpiece 4 and the order of transillumination acquisition work, according to the transillumination condition of the first transillumination acquisition position acquired by the acquisition film, the other transillumination acquisition positions on the inspected workpiece 4 are rotated in sequence to determine the transillumination condition of each equally divided detection area position on the inspected workpiece 4;

[0081] According to the transillumination conditions of each equally divided detection area position on the inspected workpiece 4, the qualified information of the inspected workpiece 4 is determined.

[0082] In this embodiment, in order to facilitate understanding of how to determine the transillumination condition of each equally divided detection area position on the inspected workpiece 4, specifically, the method for determining the transillumination condition of each equally divided detection area position on the inspected workpiece 4 includes:

[0083] Determine the next transillumination acquisition position of the inspected workpiece 4 according to the position of each equally divided inspection area on the inspected workpiece 4 and the transillumination acquisition work order;

[0084] According to the next transillumination collection position of the inspected workpiece 4, the first limit assembly 3 is separated from the rotating disk 21, and the second limit assembly is separated from the rotating adjustment assembly 2. The inspected workpiece 4 on the rotating disk 21 is driven by the rotating adjustment assembly 2 to change the transillumination collection position, so that the next transillumination collection position of the inspected workpiece 4 is above the carrying assembly 5, and the collection film and specific mark of the current transillumination collection position are replaced and installed;

[0085] The first limit assembly is locked with the rotating disk 21, and the second limit assembly is locked with the rotating adjustment assembly 2, and the transillumination work is started, and the transillumination radiation source is allowed to perform transillumination detection on the current transillumination collection position, and the transillumination situation collection of the current transillumination collection position on the inspected workpiece 4 is completed;

[0086] Repeat the above work and collect the radiography situation of each equally divided detection area position on the inspected workpiece 4 in turn according to the radiography collection work sequence.

[0087] In this embodiment, in order to facilitate understanding, how to perform transillumination inspection on the inspected workpiece 4 is described below by way of example:

[0088] Step 1: First, divide the inspection area into 6 equal parts according to the outer diameter of the circumference of the workpiece 4 to be inspected, select the acquisition film specifications and quantity suitable for the inspection of the workpiece 4 to be inspected, and prepare an image quality meter and valid lead type for marking the position (that is, set a specific mark to facilitate the subsequent search for abnormal areas).

[0089] Step 2: Place the inspected workpiece 4 on the layout fixture, fix the inspected workpiece 4 with a fixing piece, and place the selected acquisition film tightly between the inside of the inspected workpiece 4 and the carrier plate to complete the transillumination layout.

[0090] Step three, when collecting the first transillumination collection position on the inspected tool, place the collection film on the carrier plate, set the transillumination radiation source position according to the first transillumination collection position, and make the transillumination position of the transillumination radiation source perpendicular to the first transillumination collection position. Then, by adjusting the focal length of the X-ray machine and using a laser collimator to align the first transillumination collection position area to be detected, the X-ray source should be perpendicular to the first transillumination collection position area during transillumination.

[0091] Step 4: After the above-mentioned transillumination arrangement work is completed, the jaws are closed, the tube voltage, tube current, and exposure time are adjusted, and the X-ray machine is started for transillumination. The X-ray source of the X-ray machine emits radiation, and the radiation signal is received by the acquisition film to collect the transillumination situation of the first transillumination acquisition position area. At the same time, the above-mentioned rotating adjustment component 2 can be used to select the inspected workpiece 4 according to the transillumination acquisition work sequence, so as to complete the transillumination situation collection of each equally divided detection area position on the inspected workpiece 4.

[0092] Step five, after the inspection is completed, the film collecting the transillumination conditions of each equally divided inspection area on the inspected workpiece 4 is developed, fixed, stopped, washed, dried, etc. by an automatic film processor, so that the collected film receives the information and undergoes a chemical reaction in a darkroom to form a negative film for product inspection.

[0093] Step six, film evaluation is the process of detecting, recording, analyzing and evaluating the internal defects of the product by observing the image on the X-ray detection film. First, check and evaluate that the film blackness should be within the specified range, and there should be no overexposure or underexposure to ensure the clarity and recognizability of the internal defects of the product. Check that the film radiographic sensitivity should meet the specified requirements, the marking system should meet the standard requirements, and the apparent quality should meet the requirements. After all the collected films are processed in the darkroom, the film is observed on a viewing light with brightness that meets the requirements. The film reviewers observe and evaluate the internal defects of the film on the viewing light in turn according to the product acceptance requirements, and evaluate whether the product inspection quality is qualified or not, that is, the quality inspection of the product is completed. Among them, qualified films include marking systems, lead type, image quality meter, and appropriate blackness.

[0094] In this embodiment, in order to facilitate understanding of how to determine the qualified information of the inspected workpiece 4, the following description is given. Specifically, the method for determining the qualified information of the inspected workpiece 4 includes:

[0095] Determine the transillumination image of each equally divided detection area position on the inspected workpiece 4 according to the acquisition films at different transillumination acquisition positions;

[0096] Performing image processing on the transillumination image of each equally divided detection area position on the inspected workpiece 4 to determine the image feature information of the transillumination image of each equally divided detection area position on the inspected workpiece 4;

[0097] According to the image characteristic information (such as gray value or black value, etc.) of the transillumination condition of each equally divided detection area position on the inspected workpiece 4, the position of the abnormal area on the inspected workpiece 4 is determined;

[0098] According to the abnormal area position on the inspected workpiece 4 and the image feature area size of the abnormal area position on the inspected workpiece 4, the qualified information of the inspected workpiece 4 is determined. That is, in this embodiment, since the size of the acquisition film is fixed and consistent, when the abnormal area position appears on the acquisition film of the inspected workpiece 4, the size of the abnormal area position can be determined according to the feature value size of the abnormal image feature information in the abnormal area position and the selected acquisition film size. Here, in order to facilitate understanding of how to determine the size of the abnormal area position, the following description is made:

[0099] According to the model and specification of the acquisition film, a point is randomly selected on the transillumination image of the acquisition film as a coordinate reference point, and a reference coordinate system is constructed on the transillumination image of the acquisition film with the coordinate reference point;

[0100] According to the characteristic information of the transillumination image, determine the abnormal area on the transillumination image of the acquisition film, and determine the contour point distribution information of the abnormal area on the transillumination image in combination with the reference coordinate system;

[0101] According to the distribution information of the contour points of the abnormal area on the transillumination image, the area ratio of the abnormal area to the transillumination image is determined, and the qualification of the abnormal area on the transillumination image is determined. That is, according to the size of the abnormal area on the transillumination image of the acquisition film, whether the transillumination acquisition position is qualified is determined. Specifically,

[0102] Assume that there are n triangles formed by points A, B, and C in the abnormal area on the transillumination image of the acquisition film, then the area of ​​the abnormal area on the transillumination image of the acquisition film is:

[0103] S 异常 =nS ΔABC ,

[0104]

[0105] in, |AB| is the straight-line distance from point A to point B; |AC| is the straight-line distance from point A to point C; |BC| is the straight-line distance from point B to point C; that is, in this embodiment, the coordinates of point A are (x1, y1), the coordinates of point B are (x2, y2), and the coordinates of point C are (x3, y3), then:

[0106]

[0107] At this time, since the size of the acquisition film is fixed, the area of ​​the abnormal region on the image can be directly compared with the area of ​​the acquisition film according to the obtained transillumination condition of the acquisition film.

[0108] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A helicopter engine inner casing radiographic inspection arrangement tool, characterized in that: include: Base; A support frame, wherein the support frame is arranged on one side of the base, and the arrangement direction of the support frame is perpendicular to the arrangement direction of the base; A rotating disk, the rotating disk is arranged at one side of the support frame, the rotating disk is arranged parallel to the support frame, a surface of the rotating disk away from the support frame is provided with a plurality of fixing members, the plurality of fixing members are distributed in a circular array along the rotating disk, and the fixing members are used to cooperate with the rotating disk to lock and support one end of the inspected workpiece; A rotation adjustment component, wherein the rotation adjustment component sequentially passes through the support frame and the rotating disk, one end of the rotation adjustment component is rotationally connected to the support frame, and the other end of the rotation adjustment component is connected to the rotating disk, and the setting direction of the rotation adjustment component is parallel to the setting direction of the base; A first limiting assembly, wherein the first limiting assembly is disposed on the support frame, the first limiting assembly is located at one side of the rotating disk, the limiting direction of the first limiting assembly is perpendicular to the outer circumference of the rotating disk, and the first limiting assembly is used to abut against and limit the rotating disk to rotate; A bearing assembly, the bearing assembly is arranged on the rotating disk, the bearing assembly is located on a surface away from the supporting frame, and the bearing assembly is used to bear and support the inner wall of the inspected workpiece and collect the inner wall conditions of the inspected workpiece; A second limiting component, wherein the second limiting component passes through the rotation adjustment component, one end of the second limiting component is connected to the bearing component, and the other end of the second limiting component is detachably connected to the rotation adjustment component.

2. A helicopter engine inner casing radiographic inspection arrangement tooling according to claim 1, characterized in that: The rotation adjustment assembly comprises: A rotating sleeve, one end of which passes through the support frame and the rotating disk in sequence, a fixed sleeve is provided on the outer sleeve of the rotating sleeve, and the rotating sleeve is rotatably connected to the support frame through the fixed sleeve; A first locking disk, the first locking disk is disposed on one surface of the rotating disk, and the first locking disk is located away from the supporting frame, and the first locking disk is fixedly connected to the rotating disk; The second locking plate is arranged on one end of the rotating sleeve that passes through the rotating plate. The second locking plate is located on a side of the rotating plate away from the supporting frame. The second locking plate is connected to the first locking plate.

3. A helicopter engine inner casing radiographic inspection arrangement tooling according to claim 2, characterized in that: The first limiting component comprises: A limit block, wherein the limit frame is in an inverted L shape, one end of the limit frame is detachably arranged on the support frame, and the other end of the limit frame is located above the rotating disk; A limiting rod, the limiting rod passes through the other end of the limiting frame, the setting direction of the limiting rod is perpendicular to the outer circumference of the rotating disk, and the limiting rod is threadedly connected to the limiting frame; The limit block is arranged on one side of the rotating disk, a limit slot is arranged on the limit block, the limit slot is clamped on the outer circumference of the rotating disk, and the limit block is rotatably connected to the limit rod away from the limit slot.

4. A helicopter engine inner casing radiographic inspection arrangement tooling according to claim 3, characterized in that: The bearing assembly comprises: A rotating shaft, one end of which passes through the rotating sleeve, the first locking plate and the second locking plate in sequence and extends to a side away from the support frame, and the rotating shaft is rotatably connected within the rotating sleeve, the first locking plate and the second locking plate; A locking member, the locking member is in the shape of a plate, one end of the locking member is sleeved on the end of the rotating shaft extending away from the supporting frame, and the setting direction of the locking member is perpendicular to the setting direction of the rotating shaft; The bearing plate is arc-shaped, one end of the bearing plate is arranged at the other end of the locking member, the bearing plate is rotatably connected to the rotating sleeve through the locking member, and the arc-shaped side of the bearing plate is located inside the inspected workpiece.

5. A helicopter engine inner casing radiographic inspection arrangement tooling according to claim 4, characterized in that: The locking member comprises: A first connecting plate, one end of which is sleeved on the rotating shaft, and a plurality of locking holes are provided on the first connecting plate; A second connecting plate, the second connecting plate is arranged in parallel with the first connecting plate, the second connecting plate is provided with strip holes, the arrangement positions of the strip holes correspond to the plurality of locking holes, and one end of the second connecting plate is arranged on one end of the bearing plate; A connecting piece, wherein the connecting piece passes through the strip hole and the locking hole in sequence, and the connecting piece is threadedly connected to the locking hole.

6. A helicopter engine inner casing radiographic inspection arrangement tool as claimed in claim 5, characterized in that: The rotating sleeve is provided with a locking hole at one end away from the rotating disk; the second limiting assembly comprises: A clamping piece, one end of which is abutted and connected to the rotating shaft through a locking hole, and the clamping piece is threadedly connected to the locking hole.

7. A method for detecting the inner casing of a helicopter engine by radiographic inspection, characterized in that: A helicopter engine inner casing radiographic inspection arrangement tool as described in any one of claims 1 to 6 is used.

8. A helicopter engine inner casing radiographic detection method according to claim 7, characterized in that: The detection method comprises: Obtain the circumferential outer diameter information of the inspected workpiece, determine the position of each equally divided inspection area on the inspected workpiece, and connect the inspected workpiece to the rotating disk through a fixing member; According to the position of each equally divided detection area on the inspected workpiece, the acquisition receiving surface information of the inspected workpiece is determined, and according to the acquisition receiving surface information of the inspected workpiece, the acquisition film is selected; According to the position of each equally divided detection area on the inspected workpiece, determine the order of transillumination collection work and determine the first transillumination collection position; According to the first transillumination collection position, the collection film is arranged on the carrying plate of the carrying assembly, so that the collection film is located between the inner wall of the inspected workpiece and the carrying plate of the carrying assembly, and specific marks are arranged at the transillumination collection positions of the carrying plate and the inspected workpiece to complete the transillumination arrangement; According to the first transillumination collection position, the transillumination radiation source position is set so that the transillumination position of the transillumination radiation source is perpendicular to the first transillumination collection position; The transillumination work is started, and the transillumination radiation source is allowed to perform transillumination detection on the first transillumination collection position, and at this time, the collection film collects the transillumination situation of the first transillumination collection position; According to the position of each equally divided detection area on the inspected workpiece and the order of transillumination acquisition work, according to the transillumination condition of the first transillumination acquisition position acquired by the acquisition film, the other transillumination acquisition positions on the inspected workpiece are rotated in sequence to determine the transillumination condition of each equally divided detection area position on the inspected workpiece; The qualified information of the inspected workpiece is determined based on the transillumination conditions of each equally divided inspection area on the inspected workpiece.

9. A helicopter engine inner casing radiographic detection method according to claim 8, characterized in that: The method for determining the transillumination condition of each equally divided inspection area position on the inspected workpiece includes: Determine the next transillumination acquisition position of the inspected workpiece according to the position of each equally divided inspection area on the inspected workpiece and the transillumination acquisition work order; According to the next transillumination collection position of the inspected workpiece, the first limit assembly is separated from the rotating disk, and the second limit assembly is separated from the rotating adjustment assembly. The inspected workpiece on the rotating disk is driven by the rotating adjustment assembly to change the transillumination collection position, so that the next transillumination collection position of the inspected workpiece is above the carrying assembly, and the collection film and specific mark of the current transillumination collection position are replaced and installed; The first limit assembly is locked with the rotating disk, and the second limit assembly is locked with the rotating adjustment assembly at the same time, and the transillumination work is started, and the transillumination radiation source is allowed to perform transillumination detection on the current transillumination collection position, and the transillumination situation collection of the current transillumination collection position on the inspected workpiece is completed; Repeat the above work and collect the radiography conditions of each equally divided inspection area on the inspected workpiece in turn according to the radiography collection work sequence.

10. A helicopter engine inner casing ray transillumination detection method according to claim 9, characterized in that: Methods for determining qualified information of inspected workpieces include: According to the acquisition films at different transillumination acquisition positions, the transillumination image of each equally divided detection area on the inspected workpiece is determined; Performing image processing on the transillumination image of each equally divided detection area position on the inspected workpiece to determine the image feature information of the transillumination image of each equally divided detection area position on the inspected workpiece; Determine the position of the abnormal area on the inspected workpiece according to the image feature information of the transillumination situation of each equally divided inspection area on the inspected workpiece; According to the position of the abnormal area on the inspected workpiece and the size of the image feature area of ​​the abnormal area on the inspected workpiece, the qualified information of the inspected workpiece is determined.

Images