CN112881442B - Detachable sliding door type industrial online CT - Google Patents
Detachable sliding door type industrial online CT Download PDFInfo
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- CN112881442B CN112881442B CN202110110959.0A CN202110110959A CN112881442B CN 112881442 B CN112881442 B CN 112881442B CN 202110110959 A CN202110110959 A CN 202110110959A CN 112881442 B CN112881442 B CN 112881442B
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- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
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- G01N23/046—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
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Abstract
The invention provides a detachable sliding door type industrial online CT (computed tomography), which solves the problems that the size of a detectable part is relatively small and the conventional self-shielding device can only be used for offline detection because a self-shielding device adopted by the conventional industrial CT conflicts with the detection of large-size parts. The detachable sliding door type industrial online CT comprises a radiation shielding bin, a detector, a ray source, a bin body connecting piece and a rotating mechanism; the radiation shielding bin is a trapezoidal bin body, the detector and the ray source are arranged on the radiation shielding bin, and the radiation shielding bin is connected with the bin body connecting piece through the rotating mechanism. The industrial online CT increases the detectable range, can realize the defect detection of large annular parts in the additive manufacturing process, can be quickly disassembled and assembled according to the actual working conditions, meets the requirements of different-angle scanning, and also ensures the radiation safety requirement in the detection process.
Description
Technical Field
The invention belongs to the technical field of nondestructive testing, and particularly relates to a detachable sliding door type industrial online CT.
Background
Industrial CT is a short name for industrial computed tomography, and the technology adopts nuclear imaging technology to meet the detection requirement of a detected piece, and is a common nondestructive detection method in industry, and the principle of the technology is to utilize the characteristic that rays have penetrability, and reversely deduce the attenuation rule and distribution condition of emergent rays in the detected piece according to the radiation intensity information obtained from a detector, so as to realize two-dimensional or three-dimensional reconstruction imaging of the detected piece, and finally obtain the information of the defect, size, material and the like of the detected piece according to the reconstructed image, thereby conveniently evaluating the states of the structure, defect and the like of the part, and improving the safety of the part.
At present, the industrial CT mostly adopts an offline self-shielding manner to detect parts, the offline detection is performed after the parts are formed, once a defect is detected, the parts can be scrapped and cannot be repaired, and the risk that the whole batch of parts adopting the same process is scrapped can be caused, so that the earlier defect detection in the process flow is more beneficial to reducing the scrapping rate.
Meanwhile, the industrial CT radiation protection design is carried out by adopting a self-shielding mode or a radiation protection room at present. The self-shielding design is that the shielding body and the main structure of the X-ray flaw detection device are integrally designed and manufactured, the detection device and the motion system are arranged in the shielding body, and the shielding body can reduce the X-ray dose generated by the device to be below a specified dose limit value, but the size of the part which can be detected by the mode is relatively small; the other method is to construct a radiation protection room, which increases the degree of freedom of the detection equipment and the size of the detectable parts to a certain extent, but because the manufacturing cost and the construction difficulty of the radiation protection room are much higher than those of the self-shielding design, and the flexibility of the self-shielding design is better than that of the radiation protection room, the self-shielding design is adopted in the current industrial CT, and the problem of detecting the large-size parts under the self-shielding condition is a problem to be solved urgently.
Disclosure of Invention
The invention aims to solve the problems that the size of a detectable part is relatively small and the conventional self-shielding device can only be used for offline detection due to the fact that the conventional industrial CT adopts the self-shielding device and the large-size part is detected in a mutual conflict manner, and provides a detachable sliding door type industrial online CT. The industrial online CT increases the detectable range, can realize the defect detection of large annular parts in the additive manufacturing process, can be quickly disassembled and assembled according to the actual working conditions, meets the requirements of different-angle scanning, and ensures the radiation safety requirement in the detection process.
In order to achieve the purpose, the invention provides the following technical scheme:
a detachable sliding door type industrial on-line CT comprises a radiation shielding bin, a detector, a ray source, a bin body connecting piece and a rotating mechanism; the radiation shielding bin comprises a shielding bin body, a front large lead sliding door, a front small lead sliding door, a rear large lead sliding door and a rear small lead sliding door; the shielding bin body is a trapezoidal bin body, the length direction of the shielding bin body is set to be the X direction, the width direction is the Y direction, and the height direction is the Z direction; the left side plate and the right side plate of the shielding bin body are arranged along the X direction, and the width of the left side plate in the Y direction is larger than that of the right side plate in the Y direction; openings are formed in a front side plate and a rear side plate of the shielding bin body, the front large lead sliding door and the front small lead sliding door are arranged at the opening of the front side plate through sliding rails and sliding blocks, and the rear large lead sliding door and the rear small lead sliding door are arranged at the opening of the rear side plate through sliding rails and sliding blocks; the radiation source is arranged on the right side plate, the detector is arranged on the left side plate, rays emitted by the radiation source are perpendicular to the detector, the emitting center of the radiation source and the receiving center of the detector are coaxial, the radiation source and the detector are used for detecting a detected piece, and the detected piece is wholly or partially arranged in the radiation shielding bin; the radiation shielding bin is connected with the bin body connecting piece through the rotating mechanism, the rotating mechanism is used for rotating the radiation shielding bin and scanning a detected piece at multiple angles, and the bin body connecting piece is used for being connected with the moving mechanism, so that the radiation shielding bin can move in multiple dimensions.
Further, the rotating mechanism is an electric turntable or a manual turntable, and the manual turntable comprises a rotating part, a main annular buckle and an auxiliary annular buckle; the rotating piece comprises a first cylindrical section, a second cylindrical section and a third cylindrical section which are sequentially connected, the diameter of the second cylindrical section is smaller than that of the third cylindrical section, the diameter of the third cylindrical section is smaller than that of the first cylindrical section, the first cylindrical section is arranged at the top end of the shielding bin body, the second cylindrical section and the third cylindrical section penetrate through a bottom plate of the bin body connecting piece, the main annular buckle and the auxiliary annular buckle form a clamping ring, and the clamping ring is sleeved on the second cylindrical section and is arranged between the bottom plate of the bin body connecting piece and the third cylindrical section.
Furthermore, the gaps between the front large lead sliding door, the front small lead sliding door and the opening of the front side plate are sealed by adopting sealing lead rubber, and the gaps between the rear large lead sliding door, the rear small lead sliding door and the opening of the rear side plate are sealed by adopting sealing lead rubber.
Further, rollers are arranged on the front large lead sliding door and the front small lead sliding door, and the rollers are matched with a guide rail arranged on the shielding bin body to realize the directional sliding of the front large lead sliding door and the front small lead sliding door; the rear large lead sliding door and the rear small lead sliding door are provided with rollers, and the rollers are matched with guide rails arranged on the shielding bin body to realize directional sliding of the rear large lead sliding door and the rear small lead sliding door.
Further, the shielding bin body comprises a skin, a main body frame, a shielding layer and a shielding layer adjusting assembly; the main body frame is of multiple layers, the multiple layers of main body frames are sequentially nested from inside to outside, and the main body frame is provided with an installation track; the shielding layer is an M layer, the M layer shielding layer is arranged in an installation track of the main body frame, the shielding layer is fixed on the main body frame through a shielding layer adjusting assembly, and M is more than or equal to 1; the skin is arranged on the inner side and/or the outer side of the main body frame and used for wrapping the main body frame.
Further, main body frame adopts the triangle-shaped strengthening rib structure of integral type, the shielding layer mainly comprises lead layer and the iron sheet of setting in the lead layer outside, shielding layer adjustment subassembly includes first backing plate, second backing plate and adjusting bolt, first backing plate sets up in the shielding layer outside, the second backing plate sets up in the main body frame outside, adjusting bolt passes the second backing plate, and its end supports and leans on first backing plate.
Further, the detector passes through the mounting panel setting on the left side board, the ray source passes through the support frame setting on the right side board, and the outside of ray source still is provided with the protection casing.
Further, the movement mechanism comprises an upright column turntable, an upright column and a cross beam; the upright post is arranged on the upright post rotary table, and the upright post rotary table is used for driving the upright post to do rotary motion; the cross beam is arranged on the upright post, and the upright post is used for driving the cross beam to move up and down; the bin body connecting piece is hung at the lower end of the cross beam, and the cross beam is used for realizing the left and right movement of the radiation shielding bin.
Further, the upright column comprises an upright column body, and a first motor, a first speed reducer and a first screw rod which are arranged in the upright column body; an output shaft of the first motor is connected with the first screw rod through a first speed reducer and is used for driving the first screw rod to rotate; the first screw rod is provided with a first nut in threaded connection with the first screw rod and used for driving the first nut to move up and down, and the first nut is fixedly connected with the cross beam and can drive the cross beam to move up and down.
Further, the cross beam comprises a cross beam body, and a second motor, a second speed reducer and a second screw rod which are arranged in the cross beam body; an output shaft of the second motor is connected with the second screw rod through a second speed reducer and used for driving the second screw rod to rotate; and the second screw rod is provided with a second nut in threaded connection with the second screw rod and used for driving the second nut to move left and right, and the second nut is fixedly connected with the bin body connecting piece so as to drive the radiation shielding bin to move left and right.
Compared with the prior art, the technical scheme of the invention has the beneficial effects that:
1. according to the detachable sliding door type industrial online CT, the openings are formed in the front side and the rear side of the shielding bin body, so that part of the structure of a large annular part is located in the bin body, the detection requirements of large annular parts and small-size parts can be met, and the detachable sliding door type industrial online CT has a more flexible application scene. Meanwhile, the open bin body is integrated with the manufacturing equipment to meet the requirement of online detection, has good expansibility, and can find defects in time in the manufacturing process, so that the manufacturing cost of products is reduced, the production efficiency is improved, and the quality of the products is finally ensured.
2. The radiation shielding bin is a trapezoidal bin body, the installation width of the ray source end is smaller than that of the detector end, so that the ray source end can adopt a miniaturized and compact design, and compared with a traditional cubic structure with the same size of the ray source and the detector end, the device reduces the minimum detection radius of the ring-shaped piece and increases the size detection range of the ring-shaped piece, so that the radiation shielding bin has stronger adaptability, can be adapted to workpieces of various types and sizes, and can be adapted to detect the workpieces more widely.
3. The radiation shielding bin disclosed by the invention has the advantages that the design of the lead sliding door and the sliding rail is utilized, the bin door can be closed more conveniently and safely, the X-ray can be blocked to the maximum extent, and gaps generated in the detection process can be covered by lead rubber, so that the integral radiation level reaches the specified requirements.
4. The main body frame of the radiation shielding bin is provided with the mounting rail, the mounting rail can be provided with a plurality of shielding layers, and the number of the shielding layers and the maximum shielding thickness can be selected according to actual conditions, so that the function of freely adjusting the thickness of the shielding layers is realized. The main body frame of the radiation shielding bin adopts an integrated triangular reinforcing rib structure, so that the stress motion requirement of hanging or other connection modes of the on-line industrial CT integral device is met, and the applicability is high.
5. The detection mechanism of the detachable sliding door type industrial online CT is arranged on the movement mechanism in a hanging mode, the detection mechanism and the movement mechanism are independent of each other, and the detection mechanism has a wider movement track, so that large parts can be detected. Meanwhile, the industrial online CT adopts a multi-motion-axis self-shielding type online detection design, and the motion structure of the multi-motion-axis realizes the multi-degree-of-freedom motion of the detection mechanism, so that the detection function switching of the multi-size parts is realized.
6. The detachable sliding door type industrial online CT is provided with the bin body connecting piece and the rotating mechanism, so that the online detection multi-working condition and the installation requirement can be realized, the detachable sliding door type industrial online CT is suitable for wider working conditions, the manual rotating structure realizes angle adjustment under manual control, and multi-angle scanning in the printing process of the additive manufactured part is realized.
Drawings
FIG. 1 is a schematic structural view of an industrial on-line CT with a detachable sliding door according to the present invention;
FIG. 2 is a schematic view of a rotary mechanism according to the present invention;
FIG. 3 is a schematic view of the engagement of the rollers and guide tracks of the present invention;
FIG. 4 is a schematic structural view of the shielded cartridge body of the present invention;
FIG. 5 is a schematic view of a shield adjustment assembly according to the present invention;
FIG. 6 is a schematic view of an installation of the radiation source of the present invention;
FIG. 7 is a schematic view of the installation of the detector of the present invention;
fig. 8 is a schematic view of the detachable sliding door type industrial online CT applied to additive manufacturing according to the present invention.
Description of the drawings: 1-radiation shielding bin, 2-detector, 3-ray source, 4-bin body connecting piece, 5-rotating mechanism, 6-mounting plate, 7-support frame, 8-protective cover, 9-column rotating table, 10-column, 11-beam, 12-detected piece, 13-printing head, 14-workpiece rotating table, 101-shielding bin body, 102-front large lead sliding door, 103-front small lead sliding door, 104-rear large lead sliding door, 105-rear small lead sliding door, 106-sliding rail, 107-sealing lead rubber, 108-roller, 109-guide rail, 110-skin, 111-main body frame, 112-shielding layer, 113-shielding layer adjusting component, 114-mounting rail, 115-first backing plate, 116-second backing plate, 117-adjusting bolt, 501-rotating piece, 502-main annular buckle and 503-auxiliary annular buckle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments do not limit the present invention.
The invention provides a detachable sliding door type industrial online CT (computed tomography), which is characterized in that openings are formed in a front side plate and a rear side plate of a shielding bin body, so that part of a large annular part is positioned in the shielding bin body, the offline detection and online detection functions of a large annular part and a small-sized part can be met, and a more flexible application scene can be provided. Simultaneously, this shielding storehouse body is the trapezoidal storehouse body, and the installation width of ray source end is less than the installation width of detector end for the ray source end can adopt miniaturization, compact design, thereby can adapt the work piece of multiple type and size, and what can adapt is detected the piece more extensively. In addition, this industry online CT can carry out nimble dismouting according to operating condition when guaranteeing radiation safety, is fit for the detection demand of multiplex condition, and rotary mechanism designs and makes whole detection mechanism can rotate certain angle, carries out multi-angle scanning to being detected the piece.
As shown in fig. 1, the detachable sliding door type industrial on-line CT of the present invention comprises a radiation shielding bin 1, a detector 2, a ray source 3, a bin body connecting piece 4 and a rotating mechanism 5; the whole radiation shielding bin 1 can be hung on a moving mechanism and used for detecting defects in the additive part forming process. The radiation shielding bin 1 comprises a shielding bin body 101, a front large lead sliding door 102, a front small lead sliding door 103, a rear large lead sliding door 104 and a rear small lead sliding door 105. To describe the structure of the radiation shielding bin 1 more clearly, the length direction of the shielding bin body 101 is set as the X direction, the width direction is the Y direction, and the height direction is the Z direction, and the specific structure of the radiation shielding bin 1 will be described in detail below.
As shown in fig. 1, the shielding bin body 101 of the present invention is a trapezoidal bin body, and specifically comprises a left side plate, a right side plate, a front side plate, a rear side plate and an upper side plate, wherein the left side plate and the right side plate are arranged along the X direction, and the width of the left side plate in the Y direction is greater than the width of the right side plate in the Y direction; the front side plate and the rear side plate of the shielding bin body 101 are provided with openings, at the moment, the front large lead sliding door 102 and the front small lead sliding door 103 are arranged at the opening of the front side plate through the sliding rail 106 and the sliding block, so that the front large lead sliding door 102 and the front small lead sliding door 103 can slide on the front side plate, the rear large lead sliding door 104 and the rear small lead sliding door 105 are arranged at the opening of the rear side plate through the sliding rail 106 and the sliding block, and the rear large lead sliding door 104 and the rear small lead sliding door 105 can slide on the rear side plate. The front large lead sliding door 102, the front small lead sliding door 103, the rear large lead sliding door 104 and the rear small lead sliding door 105 are in a form that lead cores are clamped by steel plates on two sides to realize radiation shielding, meanwhile, gaps between the front large lead sliding door 102, the front small lead sliding door 103 and the opening of the front side plate are sealed by sealing lead rubber 107, gaps between the rear large lead sliding door 104, the rear small lead sliding door 105 and the opening of the rear side plate are sealed by sealing lead rubber 107, and at the moment, the shielding bin body 101, the front large lead sliding door 102, the front small lead sliding door 103, the rear large lead sliding door 104, the rear small lead sliding door 105 and the sealing lead rubber 107 form a radiation protection system to prevent radiation leakage. When large-scale annular part detection is carried out, the side wall of the annular part penetrates through the openings of the front side plate and the rear side plate, then the front side large lead sliding door 102, the front side small lead sliding door 103, the rear side large lead sliding door 104, the rear side small lead sliding door 105 and the sealing lead rubber 107 are closed in a sliding mode on the shielding bin body 101, a self-shielding design is formed, ray leakage in the detection process is prevented, radiation shielding is achieved, and the problem of radiation leakage in the online detection process is greatly solved.
As shown in fig. 3, in order to make the sliding of the front big lead sliding door 102, the front small lead sliding door 103, the rear big lead sliding door 104 and the rear small lead sliding door 105 more stable, the invention is provided with rollers 108 on the front big lead sliding door 102 and the front small lead sliding door 103, the rollers 108 are matched with the guide tracks 109 arranged on the shielding bin 101, so as to realize the directional sliding of the front big lead sliding door 102 and the front small lead sliding door 103; the large lead sliding door 104 on the rear side and the small lead sliding door 105 on the rear side are provided with rollers 108, and the rollers 108 are matched with guide rails 109 arranged on the shielding bin body 101 to realize the directional sliding of the large lead sliding door 104 on the rear side and the small lead sliding door 105 on the rear side.
As shown in fig. 1, fig. 6 and fig. 7, the radiation source 3 and the detector 2 of the present invention constitute a signal emitting and receiving system, the radiation source 3 and the detector 2 are used for detecting the detected object 12, and the detected object 12 is wholly or partially disposed in the radiation shielding bin 1. The detector 2 is arranged on the left side plate through a mounting plate 6, the ray source 3 is arranged on the right side plate through a support frame 7, and a protective cover 8 is further arranged on the outer side of the ray source. The ray source 3 emits rays perpendicular to the detector 2, and the emergent center of the ray source 3 and the receiving center of the detector 2 are coaxial. The shielding bin body 101 of the invention adopts a trapezoidal structure, and the structure can reduce the minimum detection radius of the ring-shaped piece and increase the radius range of the detectable ring-shaped piece. When detecting annular work piece, whether the ray source 3 that needs to confirm the storehouse body can put into the gyration work piece inside, if can alright detect, if can't put into annular work piece inside, whether need confirm whole work piece and can put into storehouse internal portion, if examined the work piece and can't make ray source 3 put into its inside and can't put into storehouse internal portion totally again, then CT check out test set can't detect this work piece. Based on the structure, the invention breaks through the structural design of the self-shielding industrial CT equipment, adopts an open bin body structure to bear the radiation source 3 and the detector 2, simultaneously sets the shielding bin body 101 as a trapezoidal bin body, installs the radiation source 3 on the right side plate of the short side, and installs the detector 2 on the left side plate of the long side, so that the radiation source side is asymmetrical to the structure on the two sides of the detector, the structure of the radiation source end is miniaturized as far as possible, the miniaturization can meet the requirement of detecting small-diameter annular workpieces, and the detection requirements of workpieces with various sizes can be met. The scheme flexibly solves the problem that the equipment can simultaneously meet the detection requirements of various-diameter revolving body workpieces, large-size flat plate workpieces and small workpieces which can be completely placed in the bin body, particularly large revolving body workpieces and flat plate workpieces, and can be used for online detection.
As shown in fig. 4 and 5, the radiation shielding bin 1 of the present invention reduces the X-ray dose generated by the radiation source 3 below a prescribed dose limit, and the specific structure thereof is as follows: the radiation shielding bin 1 comprises a skin 110, a main body frame 111, a shielding layer 112 and a shielding layer adjusting assembly 113; the main body frame 111 is of multiple layers, the multiple layers of main body frames 111 are sequentially nested from inside to outside, and the main body frame 111 is provided with an installation track 114; the shielding layer 112 is M layers, the M layers of shielding layer 112 are installed in the installation rail 114 of the main body frame 111, and the shielding layer 112 is fixed on the main body frame 111 through the shielding layer adjusting component 113, wherein M is greater than or equal to 1; the shielding layer 112 is mainly composed of a lead layer and an iron sheet disposed outside the lead layer. In order to meet the detection requirement of the large-sized annular part, openings are arranged on two sides of the main body frame 111, so that part of the side wall of the large-sized annular part is positioned in the main body frame 111. The mounting rail 114 of the main body frame 111 of the present invention can mount multiple shielding layers 112, and the number of the shielding layers 112 and the maximum shielding thickness can be selected according to actual situations. The shielding layer adjusting assembly 113 ensures that the whole device provides a more convenient function of adjusting the thickness of the shielding layer 112, and the skin 110 is arranged on the inner side and/or the outer side of the main body frame 111 and used for coating the main body frame 111, so that the safety and the aesthetic property of the main body frame 111 are ensured.
In the radiation shielding bin 1, the main body frame 111 is in a multilayer structure and adopts an integrated triangular reinforcing rib structure, the type and the structural layer number of the reinforcing ribs can meet the stressed motion requirements of suspension or other connection modes of an online industrial CT integral device, and can be selected according to the field conditions, but at least two layers are required. The shielding layer 112 is formed by sandwiching a lead layer with an iron sheet, and the thickness of the lead layer and the thickness of the iron sheet can be selected according to actual conditions. The shielding layer adjusting assembly 113 adopts a threaded fastening manner to achieve the fixing and thickness adjusting functions of the shielding layer 112.
As shown in fig. 5, in the radiation shielding bin 1 of the present invention, the shielding layer adjusting assembly 113 specifically includes a first pad 115, a second pad 116 and an adjusting bolt 117, the first pad 115 is disposed outside the shielding layer 112, the second pad 116 is disposed outside the main body frame 111, and the adjusting bolt 117 passes through the second pad 116, and the end of the adjusting bolt abuts against the first pad 115. The main body frame 111 is provided with the mounting rail 114 to mount the shielding layer 112, and the shielding layer adjusting assembly 113 is used to fix the shielding layer 112, and the shielding layer adjusting assembly 113 adopts a threaded fastening mode, so that the thickness of the shielding layer 112 can be increased according to the radiation protection requirement of actual engineering while the fixing function is realized. The specific method comprises the following steps: the shielding layer 112 with a fixed thickness is placed in the mounting rail 114 of the main body frame 111, the shielding layer 112 is fastened by the shielding layer adjusting assembly 113, and when the thickness needs to be increased, the adjusting bolt 117 is loosened, and the shielding layer 112 with a specific thickness is mounted and fastened, so that the effect of increasing the thickness of the shielding layer 112 is achieved.
As shown in figures 1 and 2, the radiation shielding bin 1 is connected with a bin body connecting piece 4 through a rotating mechanism 5, the rotating mechanism 5 enables the whole detection mechanism to rotate for a certain angle to scan a detected piece 12 at multiple angles, and the bin body connecting piece 4 connects the whole detection mechanism with a movement mechanism, so that the whole detection mechanism can be conveniently assembled and disassembled, and can be connected with multiple types of movement mechanisms. The rotating mechanism 5 can be an electric rotating table or a manual rotating table, and the manual rotating table comprises a rotating piece 501, a main annular buckle 502 and an auxiliary annular buckle 503; rotating member 501 is including the first cylinder section, second cylinder section and the third cylinder section that connect gradually, and the diameter of second cylinder section is less than the diameter of third cylinder section, the diameter of third cylinder section is less than the diameter of first cylinder section, first cylinder section sets up on the top of the shielding storehouse body 101, second cylinder section and third cylinder section pass bin body connecting piece 4's bottom plate, main annular buckle 502, vice annular buckle 503 form the joint ring, joint ring suit is on the second cylinder section, and set up between bin body connecting piece 4's bottom plate and third cylinder section. When the whole detection mechanism needs to be rotated, the rotation can be realized only by pushing the shielding bin body 101, and the rotation angle can be manually adjusted according to the scanning requirement to complete CT scanning at different angles. In addition, when the main equipment is disassembled, the shielding cabin body 101 is only required to be placed on the ground, and the main annular buckle 502 and the auxiliary annular buckle 503 are taken down to realize the separation of the connecting piece and the equipment.
As shown in fig. 8, the detachable sliding door type industrial online CT of the present invention employs cantilever type installation for defect detection in the large ring-shaped additive manufacturing process. The movement mechanism comprises a vertical column rotary table 9, a vertical column 10 and a cross beam 11; the upright post 10 is arranged on the upright post rotary table 9, and the upright post rotary table 9 is used for driving the upright post 10 to rotate; the beam 11 is arranged on the upright post 10, and the upright post 10 is used for driving the beam 11 to move up and down; the bin body connecting piece 4 is hung on the cross beam 11, and the cross beam 11 is used for realizing the left-right movement of the radiation shielding bin 1. The upright post 10 comprises an upright post body, and a first motor, a first speed reducer and a first screw rod which are arranged in the upright post body; an output shaft of the first motor is connected with the first screw rod through a first speed reducer and is used for driving the first screw rod to rotate; be provided with the first nut rather than threaded connection on the first screw rod for drive first nut and reciprocate, first nut and crossbeam 11 fixed connection, thereby can drive crossbeam 11 and realize reciprocating. The crossbeam 11 comprises a crossbeam body, and a second motor, a second speed reducer and a second screw rod which are arranged in the crossbeam body; an output shaft of the second motor is connected with the second screw rod through a second speed reducer and used for driving the second screw rod to rotate; the second screw rod is provided with a second nut in threaded connection with the second screw rod and used for driving the second nut to move left and right, and the second nut is fixedly connected with the bin body connecting piece 4 and can drive the bin body connecting piece 4 to move left and right.
When defects are detected in the additive manufacturing process, the vertical column 10 drives the cross beam 11 to move up and down, the adjusting detection mechanism moves to the position above the annular piece, the rear cross beam 11 adjusts the detection mechanism to be placed at a proper position, the detection mechanism descends under the action of the vertical column 10, a part of the annular piece is contained between the radiation source 3 and the detector 2, after the adjustment is proper, the lead sliding door is closed, the lead rubber is sealed, the printing head 13 starts printing, the radiation source 3 and the detector 2 are opened, the annular piece rotates under the action of the workpiece rotary table 14, after scanning for one circle is completed, the scanning angle is adjusted through the rotating mechanism 5, then the scanning is completed for one circle again, after the previous action is circulated until the scanning movement of one layer with the required angle is completed, the printing head 13 and the industrial online CT move upwards and translate for one layer of printing height at the same time, and the previous action is circulated until CT scanning of all printed layers is completed, and the defect detection is completed. After the size of the ring-shaped part required to be detected is changed, the detection requirements of the ring-shaped parts with different sizes can be realized only by adjusting the upright post 10, the cross beam 11 and the upright post rotary table 9 together.
Claims (10)
1. The utility model provides a dismantled and assembled sliding door formula industry online CT which characterized in that: comprises a radiation shielding bin (1), a detector (2), a ray source (3), a bin body connecting piece (4) and a rotating mechanism (5);
the radiation shielding bin (1) comprises a shielding bin body (101), a front large lead sliding door (102), a front small lead sliding door (103), a rear large lead sliding door (104) and a rear small lead sliding door (105); the shielding bin body (101) is a trapezoidal bin body, the length direction of the shielding bin body (101) is set to be the X direction, the width direction is the Y direction, and the height direction is the Z direction; the left side plate and the right side plate of the shielding bin body (101) are arranged along the X direction, and the width of the left side plate in the Y direction is larger than that of the right side plate in the Y direction; openings are formed in the front side plate and the rear side plate of the shielding bin body (101), the front large lead sliding door (102) and the front small lead sliding door (103) are arranged at the opening of the front side plate through a sliding rail (106) and a sliding block, and the rear large lead sliding door (104) and the rear small lead sliding door (105) are arranged at the opening of the rear side plate through the sliding rail (106) and the sliding block;
the radiation source (3) is arranged on the right side plate, the detector (2) is arranged on the left side plate, rays emitted by the radiation source (3) are perpendicular to the detector (2), the emergent center of the radiation source (3) is coaxial with the receiving center of the detector (2), the radiation source (3) and the detector (2) are used for detecting a detected piece (12), and the detected piece (12) is wholly or partially arranged in the radiation shielding bin (1);
the radiation shielding bin (1) is connected with the bin body connecting piece (4) through the rotating mechanism (5), the rotating mechanism (5) is used for rotating the radiation shielding bin (1) and scanning a detected piece (12) at multiple angles, and the bin body connecting piece (4) is used for being connected with the moving mechanism, so that the radiation shielding bin (1) can move in multiple dimensions.
2. The detachable sliding door type industrial on-line CT of claim 1, wherein: the rotary mechanism (5) is an electric rotary table or a manual rotary table, and the manual rotary table comprises a rotary piece (501), a main annular buckle (502) and an auxiliary annular buckle (503); the rotary piece (501) comprises a first cylindrical section, a second cylindrical section and a third cylindrical section which are sequentially connected, the diameter of the second cylindrical section is smaller than that of the third cylindrical section, the diameter of the third cylindrical section is smaller than that of the first cylindrical section, the first cylindrical section is arranged at the top end of the shielding bin body (101), the second cylindrical section and the third cylindrical section penetrate through a bottom plate of the bin body connecting piece (4), the main annular buckle (502) and the auxiliary annular buckle (503) form a clamping ring, and the clamping ring is sleeved on the second cylindrical section and is arranged between the bottom plate of the bin body connecting piece (4) and the third cylindrical section.
3. The detachable sliding door type industrial on-line CT of claim 2, wherein: gaps between the front large lead sliding door (102), the front small lead sliding door (103) and the opening of the front side plate are sealed by adopting sealing lead rubber (107), and gaps between the rear large lead sliding door (104), the rear small lead sliding door (105) and the opening of the rear side plate are sealed by adopting sealing lead rubber (107).
4. The detachable sliding door type industrial on-line CT of claim 1, 2 or 3, wherein: the front large lead sliding door (102) and the front small lead sliding door (103) are provided with rollers (108), and the rollers (108) are matched with guide rails (109) arranged on the shielding bin body (101) to realize the directional sliding of the front large lead sliding door (102) and the front small lead sliding door (103); the rear large lead sliding door (104) and the rear small lead sliding door (105) are provided with rollers (108), and the rollers (108) are matched with guide rails (109) arranged on the shielding bin body (101) to realize directional sliding of the rear large lead sliding door (104) and the rear small lead sliding door (105).
5. The detachable sliding door type industrial on-line CT of claim 4, wherein: the shielding cabin body (101) comprises a skin (110), a main body frame (111), a shielding layer (112) and a shielding layer adjusting assembly (113); the main body frame (111) is of multiple layers, the multiple layers of main body frames (111) are sequentially nested from inside to outside, and the main body frame (111) is provided with an installation track (114); the shielding layer (112) is an M layer, the M layer shielding layer (112) is installed in an installation rail (114) of the main body frame (111), the shielding layer (112) is fixed on the main body frame (111) through a shielding layer adjusting assembly (113), and M is larger than or equal to 1; the skin (110) is arranged on the inner side and/or the outer side of the main body frame (111) and is used for covering the main body frame (111).
6. The detachable sliding door type industrial on-line CT of claim 5, wherein: main body frame (111) adopts the triangle-shaped strengthening rib structure of integral type, shielding layer (112) mainly comprise lead layer and the iron sheet that sets up in the lead layer outside, shielding layer adjustment subassembly (113) include first backing plate (115), second backing plate (116) and adjusting bolt (117), first backing plate (115) set up in shielding layer (112) outside, second backing plate (116) set up in main body frame (111) outside, adjusting bolt (117) pass second backing plate (116), and its end supports and leans on first backing plate (115).
7. The detachable sliding door type industrial on-line CT of claim 6, wherein: detector (2) pass through mounting panel (6) and set up on the left side board, radiation source (3) pass through support frame (7) and set up on the right side board, and the outside of radiation source (3) still is provided with protection casing (8).
8. The detachable sliding door type industrial on-line CT of claim 7, wherein: the movement mechanism comprises an upright column turntable (9), an upright column (10) and a cross beam (11); the upright post (10) is arranged on an upright post rotary table (9), and the upright post rotary table (9) is used for driving the upright post (10) to rotate; the cross beam (11) is arranged on the upright post (10), and the upright post (10) is used for driving the cross beam (11) to move up and down; the bin body connecting piece (4) is hung on a cross beam (11), and the cross beam (11) is used for realizing the left-right movement of the radiation shielding bin (1).
9. The detachable sliding door type industrial on-line CT of claim 8, wherein: the upright post (10) comprises an upright post body, and a first motor, a first speed reducer and a first screw rod which are arranged in the upright post body; an output shaft of the first motor is connected with the first screw rod through a first speed reducer and is used for driving the first screw rod to rotate; the first screw rod is provided with a first nut in threaded connection with the first screw rod and used for driving the first nut to move up and down, and the first nut is fixedly connected with the cross beam (11) so as to drive the cross beam (11) to move up and down.
10. The detachable sliding door type industrial on-line CT of claim 9, wherein: the cross beam (11) comprises a cross beam body, and a second motor, a second speed reducer and a second screw rod which are arranged in the cross beam body; an output shaft of the second motor is connected with the second screw rod through a second speed reducer and used for driving the second screw rod to rotate; and a second nut in threaded connection with the second screw is arranged on the second screw and used for driving the second nut to move left and right, and the second nut is fixedly connected with the bin body connecting piece (4) so as to drive the radiation shielding bin (1) to move left and right.
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