CN110487224B - X-ray imaging detection system - Google Patents
X-ray imaging detection system Download PDFInfo
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- CN110487224B CN110487224B CN201910756397.XA CN201910756397A CN110487224B CN 110487224 B CN110487224 B CN 110487224B CN 201910756397 A CN201910756397 A CN 201910756397A CN 110487224 B CN110487224 B CN 110487224B
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- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B15/00—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons
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Abstract
The invention belongs to the technical field of image detection systems, and particularly relates to an X-ray imaging detection system. This detecting system includes X ray emission subassembly, X ray receiving element, X ray emission subassembly includes the X ray source, X ray receiving element includes X ray receiver, the perpendicular downward irradiation of X ray that the X ray source sent and by X ray receiver receives, still including locating slewing mechanism between X ray emission subassembly and the X ray receiving element, slewing mechanism includes first base plate, first lead screw, second lead screw, first motor, second motor, third motor and first shaft coupling, be equipped with the pivot on the first base plate, first shaft coupling with the pivot is connected. The X-ray imaging detection system provided by the invention can realize the detection of the internal structure and size of the product; and the change of position and angle can be realized in the detection process, thereby realizing the multi-angle detection of the workpiece.
Description
Technical Field
The invention belongs to the technical field of image detection systems, and particularly relates to an X-ray imaging detection system.
Background
The detection principle of X-ray digital imaging is that the ray transilluminates the workpiece to be detected, the attenuated ray photon is received by the digital detector and converted into digital signal through a series of conversions, and the digital signal is amplified and A/D converted and then processed by a computer and output on a display in the form of digital image. The digital imaging detection and the film photography are consistent in the ray transillumination principle, the ray machine emits rays to transilluminate a detected workpiece, and attenuated, absorbed and scattered ray photons are received by the imaging device. The difference lies in the processing technology of the imaging member for the received information: the film photography is that ray photons form a latent image in the film, and the defects are observed by using a film viewing lamp through the treatment of a darkroom; the digital imaging is realized by controlling a digital imaging device by using computer software, realizing the conversion process from ray photons to digital signals and then to digital images, and finally observing and processing the imaging on a display.
Moreover, the traditional camera detection can only detect the external structure and size of a product, but cannot realize accurate positioning detection and global detection or can only carry out global detection by manual assistance for workpieces with special requirements such as a plurality of precise small detected objects. But X-ray digital imaging detection techniques are not so limited.
The detection system completes intelligent imaging algorithm and control by utilizing miniaturized X-ray visual imaging, realizes the weld joint detection of the welding test piece, adopts a digital image form, has high imaging quality, and is easy to analyze and store.
Patent application CN201420585605.7 discloses an X-ray flat-panel imaging inspection table system device. The detection table system device comprises a fixed support, a left lifting rail, an X-ray machine system, a lifting system, a flat X-ray digital imaging system, a right lifting system, a movable support, a connecting device, a second electric crown block, a left and right moving rail, a top rail fixing device, a horizontal fixing rod, a top front and back moving rail, a top rail moving device, a first electric crown block, a movable plate, a connecting and fixing device, a fixed plate, a detection table, a rotating shaft and an engine.
The utility model discloses a dull and stereotyped formation of image of X ray detects platform system device's setting for in detection achievement, detection efficiency improves greatly, intensity of labour reduces, and the work piece location is accurate, can carry out the dull and stereotyped formation of image of X ray that the whole situation detected and detect platform system device.
However, the above-mentioned detection systems cannot be directly used for detecting workpieces with a large number of angles to be detected.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide an X-ray imaging detection system.
In order to achieve the above purpose, the present invention provides the following technical solutions:
an X-ray imaging detection system comprises an X-ray emitting assembly and an X-ray receiving assembly, wherein the X-ray emitting assembly comprises an X-ray source, the X-ray receiving assembly comprises an X-ray receiver, X-rays emitted by the X-ray source vertically irradiate downwards and are received by the X-ray receiver, the X-ray imaging detection system also comprises a rotating mechanism which is arranged between the X-ray emitting assembly and the X-ray receiving assembly and drives a workpiece to rotate,
the rotating mechanism comprises a first substrate, a first screw rod, a second screw rod, a first motor, a second motor, a third motor and a first coupler, and the first substrate is perpendicular to a connecting line between the X-ray source and the X-ray receiver;
the first screw rod and the second screw rod are respectively and vertically fixed on the same side surface of the first substrate and are respectively connected with the first motor and the second motor;
the two ends of the first substrate in the length direction are provided with rotating shafts, the first coupler is connected with the rotating shafts, and the third motor is connected with the first coupler.
Preferably, the detection system further comprises a transmission mechanism arranged below the rotating mechanism, the transmission mechanism comprises a second substrate, a third screw rod and a fourth motor, the second substrate is arranged below the first substrate in parallel and is fixedly connected with the third screw rod, and the fourth motor is connected with the third screw rod and drives the third screw rod to move up and down along the Z-axis direction.
Preferably, the transmission mechanism further comprises two synchronous belts and a second coupling, and the third screw rods are a pair and are parallel to and opposite to each other in the Z-axis direction; the lower end parts of the pair of third screw rods are respectively provided with a belt wheel, and the second coupling is arranged between the two belt wheels and is respectively connected with the belt wheels through the synchronous belt.
Preferably, the X-ray receiving assembly further includes a movable square shielding plate, a cylinder, a third guide rail, and a fixed block, the shielding plate is fixedly connected to the fixed block, the fixed block is slidably connected to the third guide rail, the shielding plate is located above the X-ray receiver, and the cylinder drives the fixed block and the shielding plate to slide along the length direction of the third guide rail.
Preferably, the upper surface, the lower surface, the left surface and the right surface of the X-ray receiver are provided with lead protection plates.
Preferably, the workpiece is detachably fixed on the jig, and the jig is connected with the first substrate through a buckle.
Preferably, a guide rail parallel to the first screw rod and the second screw rod is arranged between the jig and the first substrate.
Preferably, the detection system further comprises a U-shaped fixed support, the X-ray emitting assembly is centrally located above the U-shaped fixed support, the X-ray receiving assembly is fixed at the bottom of the fixed support, and the rotating mechanism is arranged at the upper end of the fixed support.
Preferably, a lead protection cover is arranged outside the detection system, and the lead protection cover is of a hollow cubic structure made of lead plates.
Preferably, the X-ray imaging system further comprises a central control system, a signal acquisition system and a signal conversion system, wherein the central control system controls the rotation angle and the displacement of the rotating mechanism and the time for emitting X rays by the X rays, the signal acquisition system acquires the X rays received by the X ray receiver, and the signal conversion system converts the X ray detection information acquired by the signal acquisition system into visual image information.
The invention also provides a detection method of the X-ray imaging detection system, which comprises the following steps:
fixing a workpiece to be detected on a first substrate of a rotating mechanism; the first motor and the second motor drive the workpiece to move along the X axis and the Y axis respectively to adjust the displacement of the workpiece on the plane of the first substrate;
the third motor drives the first substrate to rotate by taking a connecting line formed by the rotating shafts at the two ends of the first substrate as a shaft through the coupler so as to realize the adjustment of the angle of the workpiece;
the X-ray emitter emits X-rays, and the X-ray receiver receives the X-rays which penetrate through the workpiece; detecting the received X-ray signals;
the signal conversion system converts the received X-ray signals into image signals.
Compared with the prior art, the invention has the beneficial effects that:
(1) the X-ray imaging detection system provided by the invention can realize the detection of the internal structure and size of the product.
(2) The X-ray imaging detection system provided by the invention can realize the change of the position and the angle of the workpiece in the detection process, thereby realizing the multi-angle detection of the workpiece.
(3) According to one preferred mode of the X-ray imaging detection system provided by the invention, the lead protection plate and the movable shielding plate are arranged outside the receiver, so that X-rays can be prevented from leaking when the machine does not work, and meanwhile, the function of protecting equipment can be achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a partial schematic structural view of an X-ray imaging detection system provided in embodiment 1;
FIG. 2 is another view of the X-ray imaging detection system of FIG. 1;
FIG. 3 is a side view of a transport mechanism of the X-ray imaging detection system of FIG. 1;
FIG. 4 is a schematic diagram of the drive train configuration of the X-ray imaging detection system;
FIG. 5 is a top view of an X-ray receiver assembly;
FIG. 6 is a perspective view of an X-ray receiver assembly;
in the figure: 1 is a fixed bracket; 2 is a first substrate; 21 is a rotating shaft; 3 is a first screw rod; 31 is a first guide rail; 4 is a second screw rod; 41 is a second guide rail; 5 is a second substrate; 6 is a third motor; 7 is a second motor; 8 is a first coupling; 9 is a first motor; 10 is a workpiece fixture; 11 is a third screw rod; 12 is a synchronous belt; a fourth motor 13; 14 is a tension wheel; 15 is a fourth guide rail; 16 is an X-ray receiver assembly; 161 is a third guide rail; 162 is a square shutter; 163 is a protective lead plate; 164 is an X-ray receiver; 165 are fixed blocks.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation. Unless otherwise specified, the terms "length," "width," "height," "front," "rear," "left," "right," and the like indicate an orientation or positional relationship based on the orientation of the first substrate and the orientation or positional relationship shown in the drawings, such as the X-axis refers to the lengthwise direction along the first substrate; the Y axis is along the width direction of the first substrate; the Z-axis direction refers to a direction perpendicular to the first substrate, i.e., a vertical direction.
Example 1
As shown in fig. 1-5, the present invention provides an X-ray imaging detection system, which comprises an X-ray emitting assembly and an X-ray receiving assembly 16, wherein the X-ray emitting assembly comprises an X-ray source, the X-ray receiving assembly 16 comprises an X-ray receiver 164, the X-ray emitted from the X-ray source is vertically irradiated downwards and received by the X-ray receiver 164, the present invention further comprises a rotating mechanism disposed between the X-ray emitting assembly and the X-ray receiving assembly to drive a workpiece to rotate, the rotating mechanism is fixed above a U-shaped fixed support 1,
the rotating mechanism comprises a first substrate 2, a first screw rod 3, a second screw rod 4, a first motor 9, a second motor 7, a third motor 6 and a first coupler 8, and the first substrate is perpendicular to a connecting line between the X-ray source and the X-ray receiver;
the first screw rod 3 and the second screw rod 4 are respectively and vertically fixed on the same side surface of the first substrate 2 and are respectively connected with a first motor 9 and a second motor 7; the first motor 9 and the second motor 7 respectively drive the first screw rod 3 and the second screw rod 4 to move along the X axis and the Y axis.
Workpiece detachable fixes on work piece tool 10, work piece tool 10 fixes on the tool base with the mode that the buckle is connected, be equipped with between tool base and the first base plate 2 with the unanimous first guide rail 31 of first lead screw direction, with the unanimous second guide rail 41 of second lead screw direction, tool base side edge is equipped with screw-nut, screw nut with first lead screw 3, 4 threaded connection of second lead screw.
The length direction both ends of first base plate 2 are equipped with the pivot, and one of them pivot is connected with one of them one end of first shaft coupling 8, the other end and the third motor 6 of first shaft coupling 8 are connected, in this embodiment, still are equipped with the reduction gear between first shaft coupling 8 and the third motor 6.
The first substrate 2 is driven by a third motor 6 to rotate around a rotating shaft.
The detection system further comprises a central control system, a signal acquisition system and a signal conversion system, wherein the central control system controls the rotation angle and the displacement of the rotating mechanism and the time for emitting the X rays by the X rays, the signal acquisition system acquires the X rays received by the X ray receiver, and the signal conversion system converts the X ray detection information acquired by the signal acquisition system into visual image information.
As a preferred embodiment, the detection system further includes a transmission mechanism disposed below the rotation mechanism, the transmission mechanism includes a second substrate 5, a third lead screw 11 and a fourth motor 13, the second substrate 5 is disposed below the first substrate 2 in parallel and is fixedly connected to the third lead screw 11, and the fourth motor 13 is connected to the third lead screw 11 and drives the third lead screw 11 to move up and down along the Z-axis direction, i.e., the vertical direction. The two end parts of the second substrate 5 are vertically connected with a square plate, the upper end of the third screw rod 11 is provided with a groove with an upward opening, and the lower end of the square plate is connected with the groove in a matched mode.
And fourth guide rails 15 are arranged on the inner side surfaces of two vertical side plates of the fixed support 1, and the square plates move up and down along the fourth guide rails 15. The movement mechanism of the third screw rod 11 is the same as that of the first screw rod and the second screw rod. In the embodiment, both the third screw rod 11 and the fourth motor 13 are a pair, and the third screw rod 11 and the Z-axis direction are parallel and opposite to each other; a pair of fourth motors 13 are respectively positioned at the lower ends of the third screw rods 11 and directly connected with the third screw rods 11.
Preferably, the transmission mechanism further comprises two synchronous belts and a second coupling, belt pulleys are arranged at the lower ends of the pair of third screw rods 11, and the second coupling is arranged between the two belt pulleys and is respectively connected with the belt pulleys through the synchronous belts; the upper part of the coupler is sequentially connected with a speed reducer and a fourth motor 13; a tension pulley 14 is optionally provided between the coupling and either pulley. Driven by a fourth motor 13, the pair of third screw rods 11 move up and down. In the embodiment, only one motor is adopted, the synchronous belt is used for realizing the movement of the third screw rod, the height of the whole detection system in the Z-axis direction is shortened, and the space of detection equipment is saved.
Preferably, the X-ray receiving assembly further includes a movable square shield 162, an air cylinder, a third guide rail 161, and a fixed block 165, wherein the square shield 162 is fixedly connected to the fixed block 165, the fixed block 165 is slidably connected to the third guide rail 161, the square shield 162 is located above the X-ray receiver 164, and the air cylinder drives the fixed block 165 and the square shield 162 to slide along the length direction of the third guide rail 161.
The lead protection plate and the movable shielding plate are arranged outside the receiver, so that X-ray leakage when the machine does not work can be avoided, and meanwhile, the effect of protecting equipment can be achieved.
Preferably, a lead protection cover is arranged outside the detection system, and the lead protection cover is of a hollow cubic structure made of lead plates. The X-ray detector is used for preventing leakage in the X-ray detection process and protecting the body health of detection personnel.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. An X-ray imaging detection system comprises an X-ray emitting assembly and an X-ray receiving assembly, wherein the X-ray emitting assembly comprises an X-ray source, the X-ray receiving assembly comprises an X-ray receiver, and X-rays emitted by the X-ray source vertically irradiate downwards and are received by the X-ray receiver, and the X-ray imaging detection system is characterized by further comprising a rotating mechanism which is arranged between the X-ray emitting assembly and the X-ray receiving assembly and drives a workpiece to rotate,
the rotating mechanism comprises a first substrate, a first screw rod, a second screw rod, a first motor, a second motor, a third motor and a first coupler, and the first substrate is perpendicular to a connecting line between the X-ray source and the X-ray receiver;
the first screw rod and the second screw rod are respectively and vertically fixed on the same side surface of the first substrate and are respectively connected with the first motor and the second motor;
rotating shafts are arranged at two ends of the first substrate in the length direction, the first coupler is connected with the rotating shafts, and the third motor is connected with the first coupler;
the transmission mechanism is arranged below the rotating mechanism and comprises a second substrate, a third screw rod and a fourth motor, the second substrate is arranged below the first substrate in parallel and is fixedly connected with the third screw rod, and the fourth motor is connected with the third screw rod and drives the third screw rod to move up and down along the vertical direction; the two end parts of the second substrate are vertically connected with a square plate, the upper end of the third screw rod is provided with a groove with an upward opening, and the lower end of the square plate is connected with the groove in a matched manner;
the transmission mechanism further comprises two synchronous belts and a second coupler, and the third screw rods are paired and are parallel to and opposite to the Z-axis direction; belt wheels are arranged at the lower end parts of the pair of third screw rods, and the second coupling is arranged between the two belt wheels and is respectively connected with the belt wheels through the synchronous belt;
the X-ray receiving assembly further comprises a movable square shielding plate, an air cylinder, a third guide rail and a fixed block, the square shielding plate is fixedly connected with the fixed block, the fixed block is connected with the third guide rail in a sliding mode, the square shielding plate is located above the X-ray receiver, and the air cylinder drives the fixed block and the square shielding plate to slide along the length direction of the third guide rail; the detection system also comprises a U-shaped fixed support, the X-ray emission assembly is positioned above the U-shaped fixed support in the center, the X-ray receiving assembly is fixed at the bottom of the U-shaped fixed support, and the rotating mechanism is arranged at the upper end of the fixed support;
the workpiece is detachably fixed on a jig, and the jig is connected with the first substrate through a buckle;
and a first guide rail and a second guide rail which are respectively parallel to the first screw rod and the second screw rod are arranged between the jig and the first substrate.
2. The X-ray imaging detection system according to claim 1, wherein lead protection plates are arranged on the upper, lower, left and right sides of the X-ray receiver.
3. The X-ray imaging detection system according to any one of claims 1-2, wherein a lead shield is provided outside the detection system, the lead shield being a hollow cubic structure made of lead plate.
4. The X-ray imaging detection system of claim 1, further comprising a central control system, a signal acquisition system, and a signal conversion system, wherein the central control system controls the rotation angle and displacement of the rotation mechanism and the time of the X-ray source emitting X-rays, the signal acquisition system acquires X-rays received by the X-ray receiver, and the signal conversion system converts X-ray detection information acquired by the signal acquisition system into visual image information.
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| CN106680302A (en) * | 2016-12-28 | 2017-05-17 | 深圳市卓茂科技有限公司 | X-ray detection equipment |
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| JP2008292414A (en) * | 2007-05-28 | 2008-12-04 | Shimadzu Corp | X-ray ct device |
| CN202486072U (en) * | 2012-02-23 | 2012-10-10 | 朱史胜 | Sapphire crystal X-ray automatic orientation material bonding machine |
| CN102692421B (en) * | 2012-06-18 | 2014-07-23 | 天津三英精密仪器有限公司 | High-precision x-ray microscope sample scanning table with metering rotary shaft |
| DE102013104490A1 (en) * | 2013-01-25 | 2014-07-31 | Werth Messtechnik Gmbh | Method and device for determining the geometry of structures by means of computer tomography |
| CN204116250U (en) * | 2014-10-11 | 2015-01-21 | 烟台华科检测设备有限公司 | A kind of X ray flat panel imaging monitor station system and device |
| JP2019128163A (en) * | 2018-01-19 | 2019-08-01 | 株式会社ミツトヨ | X-ray ct device for measurement and calibration method therefor |
| CN207992096U (en) * | 2018-04-13 | 2018-10-19 | 四川巴斯德环境检测技术有限责任公司 | A kind of welding piece detecting system based on x-ray imaging |
| CN109142397A (en) * | 2018-10-26 | 2019-01-04 | 丹东华日理学电气有限公司 | A kind of air bag X-ray digital imaging detection device for detecting and detection method |
| CN109946326A (en) * | 2019-04-28 | 2019-06-28 | 重庆日联科技有限公司 | A kind of movable imaging device that steel pipe seam detects and the detection device containing the device |
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| CN106680302A (en) * | 2016-12-28 | 2017-05-17 | 深圳市卓茂科技有限公司 | X-ray detection equipment |
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Address after: 215100 south of Huikai Road, west of Gongye Road, Luzhi Town, Wuzhong District, Suzhou City, Jiangsu Province Applicant after: Lima precision measurement technology (Suzhou) Co., Ltd Address before: 215100 south of Huikai Road, west of Gongye Road, Luzhi Town, Wuzhong District, Suzhou City, Jiangsu Province Applicant before: Lima precision technology (Suzhou) Co., Ltd |
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