Material counting machine with movable X-ray source

Abstract

The utility model relates to the technical field of X-ray detection, and provides a material counting machine with a movable X-ray source, which comprises a control system; a cabinet; the shielding chamber is arranged in the cabinet; the material supporting frame is movably arranged on the machine cabinet so as to enter and exit from the shielding chamber, and the bearing surface of the material supporting frame is divided into four front illumination areas; the detection system comprises an X-ray source, a two-dimensional horizontal driving device and a positioning device, the two-dimensional horizontal driving device comprises an X-direction movement adjusting mechanism and a Y-direction movement adjusting mechanism, the positioning device and the X-ray source move synchronously, and the positioning device is used for detecting the projection position of the X-ray source on the bearing surface. According to the utility model, the X-ray source can be selectively moved according to different types of component trays, and the adhesion phenomenon of components in an image is reduced, so that the material dispensing precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of X-ray detection, in particular to a material spotting machine with a mobile X-ray source. Background Art

[0002] like Figure 1 As shown, in the existing counting machines, the X-ray cone beam 02 emitted by the fixed ray source 01 is used to transmit the material tray 03 to be inspected. Since the perspective of different materials will be different, the image of the material tray 03 to be inspected is obtained on the imaging detector 04. The components in the material tray 03 to be inspected on the image are counted according to a preset algorithm. Therefore, the accuracy of the counting is directly related to the clarity of the obtained image. However, for some special materials, such as ultra-high components or components whose height is much greater than their width, components far away from the optical center of the fixed ray source 01 will produce image adhesion due to the oblique illumination of the X-ray cone beam 02, thereby causing problems with inaccurate counting or inability to identify the components in the material tray 03 to be inspected. For example, when detecting a diameter of When the height of the material tray 03 to be detected is 20 mm, the distance between the material tray 03 to be detected and the imaging detector 04 is 20 mm. The outermost edge of the material tray 03 to be detected is elongated by about 2.52 mm during imaging. If the distance between two adjacent components along the radial direction of the material tray 03 to be detected is less than 2.52 mm, the images of the two adjacent components will overlap with each other, that is, image adhesion will occur, which will make the counting calculation difficult and it is difficult to ensure the accuracy of the counting operation. Figure 2 The image shown is of a high-size component. It can be seen from the image that due to the oblique illumination of the X-ray cone beam 02, the high-size component W at the upper left corner of the image has serious image adhesion, affecting the accuracy of the material counting operation.

[0003] In the existing point-feeding machines, the following are adopted Figure 3 The tray placement shown in the figure, that is, for the tray 03 to be tested that is less than 7 inches, the fixed radiation source 01 is located just above the center of the cross reference line for irradiation. The components at the outer edges of the four trays to be tested 03 can only be imaged by the oblique illumination of the X-ray cone beam 02, which inevitably causes the image of the components to be deformed, resulting in Figure 2 The image adhesion of the components shown in the figure affects the counting accuracy, which is a technical problem caused by the existing counting machine. Figure 4 and Figure 5 As shown, for large-sized material trays 03 to be tested (the diameter of the material trays 03 to be tested is greater than 7 inches), the material can only be selected according to Figure 4 Place it in the form shown, and place it at the outer edge Y of the material tray 03 to be tested (see Figure 5) also experience image adhesion, and the higher the component, the more serious the adhesion. In addition, for the material tray 03 to be detected that is 7 inches or less, in the existing material counting machine, in order to achieve accurate material counting, the material tray 03 to be detected can also be placed directly under the fixed ray source 01 for material counting, but only one tray of material can be counted at a time, and the efficiency of material counting is much lower. For the material tray 03 to be detected that is larger than 7 inches, the existing material counting machine cannot solve the problem of material counting accuracy caused by the image adhesion phenomenon.

[0004] In addition, in the prior art, there is also a technical solution of moving the material tray 03 to be detected, but this will make the structure of the stage of the existing material counting machine complicated, and the accuracy requirements will be increased, the equipment cost and manufacturing difficulty will be increased, and the practicality will be poor. There is also a method of placing the material tray 03 to be detected at an angle, but this method can only solve the imaging quality of the local material in the material tray 03 to be detected, and cannot obtain a complete, high-quality and clear image of the entire material tray 03 to be detected.

[0005] Finally, in the existing algorithm, the adhering components are cut apart according to the position of the components in the image to achieve counting. In this existing counting method, before accurate counting is achieved, it is necessary to use known components in advance and place them at various imaging positions to collect images. After that, the algorithm parameters are adjusted according to the images of these known components. The accuracy of the counting depends on the comprehensiveness of the collected image information. In actual use, if the position of the material tray 03 to be detected exceeds the range of the imaging position of the known components, it will greatly affect the accuracy of the counting. Utility Model Content

[0006] In view of the shortcomings of the prior art mentioned above, the technical problem to be solved by the utility model is to provide a counting machine with a mobile X-ray source, which can selectively move the X-ray source according to the different types of component trays, reduce the adhesion of components in the image, and thus improve the counting accuracy.

[0007] In order to solve the above technical problems, the utility model provides a material counting machine with a mobile X-ray source, comprising:

[0008] Control systems;

[0009] Cabinets;

[0010] Shielding room: The shielding room is located inside the cabinet;

[0011] The support rack is movably arranged in the cabinet to enter and exit the shielding room. The bearing surface of the support rack is divided into four positive illumination areas, and the four positive illumination areas are distributed in four quadrants;

[0012] The detection system includes an X-ray source, a two-dimensional horizontal drive device and a positioning device. The X-ray source, the two-dimensional horizontal drive device and the positioning device are all communicatively connected to the control system. The two-dimensional horizontal drive device is arranged in a cabinet and is connected to the X-ray source. The two-dimensional horizontal drive device includes an X-direction movement adjustment mechanism and a Y-direction movement adjustment mechanism. The X-direction movement adjustment mechanism is used to drive the X-ray source to move linearly along the X-axis direction, and the Y-direction movement adjustment mechanism is used to drive the X-ray source to move linearly along the Y-axis direction. The positioning device moves synchronously with the X-ray source and the positioning device is used to detect the projection position of the X-ray source on the carrying surface.

[0013] Furthermore, the X-axis movement adjustment mechanism includes an X-axis overhead frame arranged in the shielding room, an X-axis guide rail arranged on the X-axis overhead frame, an X-axis driver arranged on the X-axis overhead frame, an X-axis carrying platform slidably arranged on the X-axis guide rail, an X-axis connecting seat arranged on the X-axis carrying platform, and an X-axis screw nut pair arranged between the X-axis connecting seat and the X-axis driver; the Y-axis movement adjustment mechanism is arranged on the X-axis carrying platform and the Y-axis movement adjustment mechanism is connected to the X-ray source.

[0014] Furthermore, the X-axis drive includes an X-axis motor and an X-axis coupling connected to the X-axis motor; the X-axis screw nut pair includes an X-axis screw and an X-axis nut threadedly mounted on the X-axis screw, and the X-axis nut is connected to the X-axis connecting seat.

[0015] Furthermore, the Y-axis movement adjustment mechanism includes a Y-axis driver arranged on the X-axis carrying platform, a Y-axis guide rail arranged on the X-axis carrying platform, a Y-axis carrying platform slidably arranged on the Y-axis guide rail and for installing the X-ray source, a Y-axis connecting seat arranged on the Y-axis carrying platform, and a Y-axis screw nut pair arranged between the Y-axis connecting seat and the Y-axis driver.

[0016] Furthermore, the number of the Y-direction guide rails is three; the Y-direction carrying platform includes a U-shaped plate portion and a handle portion arranged on one side of the U-shaped plate portion, the opening direction of the U-shaped plate portion is parallel to the extension direction of the Y-direction guide rail, the U-shaped plate portion is slidably arranged on two of the Y-direction guide rails, the U-shaped plate portion is connected to the X-ray source, the handle portion is slidably arranged on the remaining Y-direction guide rail and the handle portion is connected to the Y-direction connecting seat.

[0017] Furthermore, the Y-axis movement and adjustment mechanism also includes a supporting frame, which includes a main fin connected to the Y-axis connecting seat, a plurality of secondary fins arranged on opposite sides of the main fin, and a supporting plate connected to the main fin and all the secondary fins at the same time; the X-ray source includes a high-voltage generator and an X-ray emitter connected to the high-voltage generator, the high-voltage generator is arranged on the supporting plate, and the X-ray emitter is arranged on the Y-axis carrying platform.

[0018] Furthermore, the positioning device is a camera, and the camera and the emission window of the X-ray source are arranged side by side.

[0019] Furthermore, the bearing surface of the support rack has a cross-shaped reference line.

[0020] As described above, the material counting machine with a mobile X-ray source of the utility model has the following beneficial effects: the material support frame is movably arranged in the cabinet to enter and exit the shielding room. Generally, the material support frame moves horizontally relative to the shielding room; the material support frame can be a drawer-type structure, for example, the material support frame can be a pull-out material loading tray, and the plate surface of the material loading tray constitutes the above-mentioned bearing surface. For another example, one side of the cabinet is provided with a cantilever fixed frame in a semi-suspended state, and the material support frame is horizontally movably arranged on the cantilever fixed frame. The main innovation of the material counting machine of the utility model lies in the horizontal movement adjustment function of the X-ray source, that is, the detection system includes an X-ray source, a two-dimensional horizontal drive device and a positioning device, and the X-ray source, the two-dimensional horizontal drive device and the positioning device are all communicatively connected to the control system, which makes it convenient for the control system to receive feedback signals and transmit command signals to move the X-ray source to a preset position. The two-dimensional horizontal driving device is arranged in the cabinet and connected to the X-ray source. The two-dimensional horizontal driving device includes an X-direction movement adjustment mechanism and a Y-direction movement adjustment mechanism. The X-direction movement adjustment mechanism is used to drive the X-ray source to move linearly along the X-axis direction, and the Y-direction movement adjustment mechanism is used to drive the X-ray source to move linearly along the Y-axis direction. In this way, the X-ray source can be horizontally moved to the top of any position of the bearing surface under the adjustment of the X-direction movement adjustment mechanism and / or the Y-direction movement adjustment mechanism. The positioning device moves synchronously with the X-ray source and the positioning device is used to detect the projection position of the X-ray source on the bearing surface. In this arrangement, since the orientation of the positioning device relative to the X-ray source is known, and the positioning device can detect its own orientation in real time, the control system can obtain the current orientation of the X-ray source in real time, thereby improving the movement accuracy of the X-ray source. Therefore, the material counting machine with a mobile X-ray source of the utility model can selectively move the X-ray source according to different types of component trays, reduce the adhesion of components in the image, and thus improve the material counting accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The diagram shows the use of an existing material counting machine;

[0022] Figure 2 The diagram shows the image adhesion caused by oblique illumination of tall components;

[0023] Figure 3 The display shows the placement of the material trays to be tested that are less than 7 inches;

[0024] Figure 4 It shows a schematic diagram of the placement of the material trays to be tested that are larger than 7 inches;

[0025] Figure 5 The diagram shows the image adhesion caused by oblique illumination of a tray to be inspected that is larger than 7 inches;

[0026] Figure 6 Shown is a schematic diagram of a material spotting machine with a mobile X-ray source of the present invention;

[0027] Figure 7 Shown is a first perspective view of a detection system;

[0028] Figure 8 A second perspective view of the detection system is shown;

[0029] Fig. 9 It shows a schematic diagram of the connection between the Y-axis carrying platform, the Y-axis connecting seat, the supporting frame and the X-ray source;

[0030] Fig.10 A perspective view of a bracket is shown;

[0031] Fig.11 Shown is a top view of the bracket;

[0032] Fig.12 The first use state diagram of the bracket is shown;

[0033] Fig.13 The second use state diagram of the bracket is shown;

[0034] Fig.14 An image showing a small component tray with no image sticking;

[0035] Fig.15 A cut-away diagram showing a quarter image of a large component tray;

[0036] Fig.16 The new image is displayed as a complete piece of the component tray.

[0037] Component number description

[0038] 01 Fixed radiation source

[0039] 02 X-ray cone beam

[0040] 03 Tray to be tested

[0041] 04 Imaging Detector

[0042] 1 Control system

[0043] 2 Cabinets

[0044] 3 Shielded Room

[0045] 4 Support rack

[0046] 41 bearing surface

[0047] 411 Direction Area

[0048] 5. Detection system

[0049] 51 X-ray source

[0050] 511 High Voltage Generator

[0051] 512 X-ray emitter

[0052] 513 Ejection Window

[0053] 52 Positioning device

[0054] 53 X-axis movement adjustment mechanism

[0055] 531 X-direction overhead rack

[0056] 532 X-Guide Rail

[0057] 533 X-Drive

[0058] 533a X-axis motor

[0059] 533b X-axis coupling

[0060] 534 X-direction loading platform

[0061] 535 X-axis connector

[0062] 536 X-axis screw nut pair

[0063] 536a X-axis screw

[0064] 536b X-direction nut

[0065] 54 Y-axis movement adjustment mechanism

[0066] 541 Y drive

[0067] 542 Y guide rail

[0068] 543 Y-axis loading platform

[0069] 543a U-shaped plate

[0070] 543b Handle

[0071] 544 Y-axis connector

[0072] 545 Y-axis screw nut pair

[0073] 546 Support

[0074] 546a Main fin

[0075] 546b Secondary fin

[0076] 546c Support Tablet

[0077] 6 Component tray DETAILED DESCRIPTION

[0078] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0079] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0080] exist Figure 7 , the X-axis direction represents the first horizontal movement direction of the X-ray source 51, and the Y-axis direction represents the second horizontal movement direction of the X-ray source 51, and the second horizontal movement direction is perpendicular to the first horizontal movement direction.

[0081] like Figure 6 , Figure 7 as well as Figure 8 As shown, the utility model provides a material spotting machine with a mobile X-ray source, comprising:

[0082] Control system 1;

[0083] Cabinet 2;

[0084] Shielding room 3, shielding room 3 is arranged in cabinet 2;

[0085] The support rack 4 is movably arranged on the cabinet 2 so as to enter and exit the shielding room 3. The bearing surface 41 of the support rack 4 is divided into four front-illumination areas 411. The four front-illumination areas 411 are distributed in four quadrants.

[0086] The detection system 5 includes an X-ray source 51, a two-dimensional horizontal drive device and a positioning device 52. The X-ray source 51, the two-dimensional horizontal drive device and the positioning device 52 are all communicatively connected to the control system 1. The two-dimensional horizontal drive device is arranged in the cabinet 2 and is connected to the X-ray source 51. The two-dimensional horizontal drive device includes an X-direction movement adjustment mechanism 53 and a Y-direction movement adjustment mechanism 54. The X-direction movement adjustment mechanism 53 is used to drive the X-ray source 51 to move linearly along the X-axis direction, and the Y-direction movement adjustment mechanism 54 is used to drive the X-ray source 51 to move linearly along the Y-axis direction. The positioning device 52 moves synchronously with the X-ray source 51 and the positioning device 52 is used to detect the projection position of the X-ray source 51 on the carrying surface 41.

[0087] In the present invention, the support rack 4 is movably arranged on the cabinet 2 to enter and exit the shielding room 3. Generally, the support rack 4 moves horizontally relative to the shielding room 3; the support rack 4 can be a drawer-type structure, for example, the support rack 4 can be a pull-out loading tray, and the tray surface of the loading tray constitutes the above-mentioned bearing surface 41. For another example, one side of the cabinet 2 is provided with a cantilevered fixed frame in a semi-suspended state, and the support rack 4 is horizontally movably arranged on the cantilevered fixed frame. The main innovation of the point-feeding machine of the present invention lies in the horizontal movement adjustment function of the X-ray source, that is, the detection system 5 includes an X-ray source 51, a two-dimensional horizontal drive device and a positioning device 52. The X-ray source 51, the two-dimensional horizontal drive device and the positioning device 52 are all communicatively connected to the control system 1, so that it is convenient for the control system 1 to receive feedback signals and transmit command signals to move the X-ray source 51 to a preset position. The two-dimensional horizontal driving device is arranged in the cabinet 2 and connected to the X-ray source 51. The two-dimensional horizontal driving device includes an X-direction movement adjustment mechanism 53 and a Y-direction movement adjustment mechanism 54. The X-direction movement adjustment mechanism 53 is used to drive the X-ray source 51 to move linearly along the X-axis direction, and the Y-direction movement adjustment mechanism 54 is used to drive the X-ray source 51 to move linearly along the Y-axis direction. In this way, the X-ray source 51 can be horizontally moved to the top of any position of the bearing surface 41 under the adjustment of the X-direction movement adjustment mechanism 53 and / or the Y-direction movement adjustment mechanism 54. The positioning device 52 moves synchronously with the X-ray source 51 and the positioning device 52 is used to detect the projection position of the X-ray source 51 on the bearing surface 41. In this arrangement, since the position of the positioning device 52 relative to the X-ray source 51 is known, and the positioning device 52 can detect its own position in real time, the control system 1 can obtain the current position of the X-ray source 51 in real time, thereby improving the movement accuracy of the X-ray source 51.

[0088] Therefore, the counting machine with a mobile X-ray source of the utility model can selectively move the X-ray source 51 according to different types of component trays 6, thereby reducing the adhesion of components in the image and improving the counting accuracy.

[0089] Furthermore, combined with Figure 7 and Figure 8 In order to accurately adjust the horizontal movement of the X-ray source 51 along the X-axis direction, the X-axis movement adjustment mechanism 53 includes an X-axis overhead frame 531 arranged in the shielding room 3, an X-axis guide rail 532 arranged on the X-axis overhead frame 531, an X-axis driver 533 arranged on the X-axis overhead frame 531, an X-axis carrying platform 534 slidably arranged on the X-axis guide rail 532, an X-axis connecting seat 535 arranged on the X-axis carrying platform 534, and an X-axis screw nut pair 536 arranged between the X-axis connecting seat 535 and the X-axis driver 533; the Y-axis movement adjustment mechanism 54 is arranged on the X-axis carrying platform 534 and the Y-axis movement adjustment mechanism 54 is connected to the X-ray source 51. Furthermore, in order to simplify the structure of the X-axis movement adjustment mechanism 53, the X-axis driver 533 includes an X-axis motor 533a and an X-axis coupling 533b connected to the X-axis motor 533a; the X-axis screw nut pair 536 includes an X-axis screw 536a and an X-axis nut 536b threadedly mounted on the X-axis screw 536a, and the X-axis nut 536b is connected to the X-axis connecting seat 535.

[0090] Furthermore, in order to accurately adjust the horizontal movement of the X-ray source 51 along the Y-axis direction, the Y-axis movement adjustment mechanism 54 includes a Y-axis driver 541 arranged on the X-axis carrying platform 534, a Y-axis guide rail 542 arranged on the X-axis carrying platform 534, a Y-axis carrying platform 543 slidably arranged on the Y-axis guide rail 542 and for the X-ray source 51 to be installed, a Y-axis connecting seat 544 arranged on the Y-axis carrying platform 543, and a Y-axis screw nut pair 545 arranged between the Y-axis connecting seat 544 and the Y-axis driver 541.

[0091] Furthermore, if Fig. 9 As shown, in order to improve the moving stability of the X-ray source 51 along the Y-axis direction, the number of the Y-direction guide rails 542 is three; the Y-direction carrying platform 543 includes a U-shaped plate portion 543a and a handle portion 543b arranged on one side of the U-shaped plate portion 543a, the opening direction of the U-shaped plate portion 543a is parallel to the extension direction of the Y-direction guide rail 542, the U-shaped plate portion 543a is slidably arranged on two of the Y-direction guide rails 542, the U-shaped plate portion 543a is connected to the X-ray source 51, the handle portion 543b is slidably arranged on the remaining one of the Y-direction guide rails 542 and the handle portion 543b is connected to the Y-direction connecting seat 544.

[0092] Furthermore, if Fig.10As shown, in order to improve the supporting strength of the support frame 546 and improve the structural compactness of the detection system 5, the Y-axis movable adjustment mechanism 54 also includes a support frame 546, and the support frame 546 includes a main fin 546a connected to the Y-axis connecting seat 544, a plurality of secondary fins 546b arranged on opposite sides of the main fin 546a, and a supporting plate 546c connected to the main fin 546a and all the secondary fins 546b at the same time; the X-ray source 51 includes a high-voltage generator 511 and an X-ray emitter 512 connected to the high-voltage generator 511, the high-voltage generator 511 is arranged on the supporting plate 546c, and the X-ray emitter 512 is arranged on the Y-axis carrying platform 543; with such an arrangement, the space above the Y-axis connecting seat 544 can be utilized, so that the spatial layout of the detection system 5 is more compact.

[0093] Furthermore, the positioning device 52 is a camera, and the camera and the emission window 513 of the X-ray source 51 are arranged side by side.

[0094] Furthermore, if Fig.11 As shown, the bearing surface 41 of the bracket 4 has a cross-shaped reference line, which divides the bearing surface 41 into four positive illumination areas 411. Point A is the center position of the bearing surface 41 of the bracket 4, point B1 is the center position of the positive illumination area 411 constituting the first quadrant, point B2 is the center position of the positive illumination area 411 constituting the second quadrant, point B3 is the center position of the positive illumination area 411 constituting the third quadrant, and point B4 is the center position of the positive illumination area 411 constituting the fourth quadrant. In specific use, the emission window 513 can be moved to the top of point A, the emission window 513 can be horizontally moved from the top of point B1 to the top of point B2, can be horizontally moved from the top of point B2 to the top of point B3, and can be horizontally moved from the top of point B3 to the top of point B4.

[0095] like Fig.11 , Fig.12 , Fig.13 As shown, the utility model also provides a light source four-quadrant movement detection method, the light source four-quadrant movement detection method adopts the material counting machine with a mobile X-ray source, and the light source four-quadrant movement detection method includes the following steps:

[0096] S1, a feeding step, that is, placing the component tray 6 on the carrying surface 41 of the bracket 4 and sending it into the shielding room 3;

[0097] S2, moving the emission window 513 of the X-ray source 51 to just above the center of the carrying surface 41, and collecting an initial image of the component tray 6;

[0098] S3, dividing the initial image into a plurality of sub-images arranged in a four-by-four matrix, and judging whether it is one large component disk or four small component disks according to the connectivity features and statistical features between the sub-images;

[0099] When the component tray 6 is a component tray, it is determined whether it is an ultra-high material tray based on the similar features between the sub-images. If it is not an ultra-high material tray, the original image of the component tray is temporarily stored and the process jumps to S6. If it is an ultra-high material tray, it is further determined whether it is necessary to move the X-ray source 51 to re-collect the image. If necessary, the process jumps to S4. If not, the original image of the component tray is temporarily stored and the process jumps to S6.

[0100] When the component tray 6 is composed of four small component trays, it is determined whether the X-ray source 51 needs to be moved to the position directly above the center of the positive irradiation area 411 according to the similar features between the sub-images. If at least one small component tray needs to move the X-ray source 51 to re-capture the image, the original image of the small component tray that does not need to move the X-ray source 51 is temporarily stored and the process jumps to S5. If no small component tray needs to move the X-ray source 51 to re-capture the image, the original images of all small component trays are temporarily stored and the process jumps to S6.

[0101] S4, move the emission window 513 of the X-ray source 51 to the top of the center of the four irradiation areas 411 in sequence, collect four new images of the component tray respectively, cut out the clearest quadrant image part of the four new images according to the movement coordinates of the X-ray source 51 and the image features of the new images, then piece the cut four quadrant image parts together into a new image of the component tray, temporarily store the new image and jump to S6;

[0102] S5, move the X-ray source 51 to the position directly above the center of the irradiation area 411, collect a new image of the component tray where the X-ray source 51 needs to be moved, cut out and temporarily store the new image, and jump to S6;

[0103] S6, calculating the total number of components in the component tray 6, that is, calculating the total number of components in the temporarily stored original image and / or new image.

[0104] In order to solve the problem of image sticking caused by oblique X-ray irradiation of components, the four-quadrant moving detection method of the light source of the utility model moves the X-ray source 51 to different positions according to the different conditions of the component tray 6: by moving the X-ray source 51 so that the X-ray source 51 is directly above the center of each component tray when counting the materials, the irradiation slope of the X-rays during detection is reduced, thereby greatly reducing the image deformation of the components at the outer edge of the component tray, alleviating or eliminating the image sticking phenomenon.

[0105] Generally, when inspecting four component trays, the X-ray source 51 is moved to the top of the center of each component tray by the two-dimensional horizontal driving device to take pictures and count the materials. Fig.14 As shown in FIG. 1 , the image quality of the components in the small component tray is significantly improved, and almost no image adhesion occurs; when inspecting the large component tray, the X-ray source 51 is moved to the top of the four corners of the large component tray by the two-dimensional horizontal driving device to take pictures, as shown in FIG. Fig.15 As shown, a quarter image with no or little adhesion can be obtained at a position close to the normal exposure of the component ( Fig.15 The red rectangular frame in the figure is the required quarter image); the four clearest quadrants of the four images are cut out by existing image synthesis software, and then a complete new image is assembled for point material; Fig.16 As shown in the figure, the positive areas of the four images are automatically cut and spliced ​​by the existing software algorithm, and a new image with greatly reduced adhesion, high quality and complete can be obtained. It has been verified in practice that these counting problems have been perfectly solved by using this method, thereby achieving accurate counting of components of special sizes.

[0106] Therefore, the four-quadrant moving detection method of the light source of the utility model automatically determines whether it is necessary to move the X-ray source 51 and calculates the reasonable position to which the X-ray source 51 should move according to the statistical information of the four parts of the components. In this way, an image in which the direction of the X-ray source 51 beam is approximately perpendicular to the components can be collected, thereby greatly reducing the adhesion phenomenon between components and improving the counting accuracy. Although, when performing point material detection on special components with higher sizes, the detection time is relatively increased because the X-ray source 51 needs to be moved, when four small component trays are detected at the same time, the number of components can be calculated for each image, so the increased time is not much, about 20%, which is within an acceptable range. In addition, the cost of the equipment has been relatively increased by only about 5% due to the addition of a two-dimensional horizontal drive device.

[0107] In summary, the present invention has a movable X-ray source for counting materials, which can selectively move the X-ray source according to the different types of component trays, reduce the adhesion of components in the image, and thus improve the counting accuracy. Therefore, the present invention effectively overcomes the various shortcomings of the prior art and has a high industrial utilization value.

[0108] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A material spotting machine with a mobile X-ray source, characterized in that: include: Control system (1); Cabinet (2); A shielding room (3), the shielding room (3) is arranged in the cabinet (2); A material support rack (4), the material support rack (4) is movably arranged on the cabinet (2) so as to enter and exit the shielding room (3), the bearing surface (41) of the material support rack (4) is divided into four front illumination areas (411), and the four front illumination areas (411) are distributed in four quadrants; A detection system (5), the detection system (5) comprising an X-ray source (51), a two-dimensional horizontal drive device and a positioning device (52), the X-ray source (51), the two-dimensional horizontal drive device and the positioning device (52) are all communicatively connected to a control system (1), the two-dimensional horizontal drive device is arranged in a cabinet (2) and is connected to the X-ray source (51), the two-dimensional horizontal drive device comprises an X-direction movement adjustment mechanism (53) and a Y-direction movement adjustment mechanism (54), the X-direction movement adjustment mechanism (53) is used to drive the X-ray source (51) to move linearly along the X-axis direction, the Y-direction movement adjustment mechanism (54) is used to drive the X-ray source (51) to move linearly along the Y-axis direction, the positioning device (52) moves synchronously with the X-ray source (51) and the positioning device (52) is used to detect the projection position of the X-ray source (51) on the bearing surface (41).

2. The material counting machine with a mobile X-ray source according to claim 1, characterized in that: The X-direction movement adjustment mechanism (53) comprises an X-direction overhead frame (531) arranged in the shielding room (3), an X-direction guide rail (532) arranged on the X-direction overhead frame (531), an X-direction driver (533) arranged on the X-direction overhead frame (531), an X-direction carrying platform (534) slidably arranged on the X-direction guide rail (532), an X-direction connecting seat (535) arranged on the X-direction carrying platform (534), and an X-direction screw nut pair (536) arranged between the X-direction connecting seat (535) and the X-direction driver (533); the Y-direction movement adjustment mechanism (54) is arranged on the X-direction carrying platform (534), and the Y-direction movement adjustment mechanism (54) is connected to the X-ray source (51).

3. The material counting machine with a mobile X-ray source according to claim 2, characterized in that: The X-direction driver (533) comprises an X-direction motor (533a) and an X-direction coupling (533b) connected to the X-direction motor (533a); the X-direction screw rod and nut pair (536) comprises an X-direction screw rod (536a) and an X-direction nut (536b) threadedly sleeved on the X-direction screw rod (536a), and the X-direction nut (536b) is connected to the X-direction connecting seat (535).

4. The material counting machine with a mobile X-ray source according to claim 2, characterized in that: The Y-direction movement adjustment mechanism (54) comprises a Y-direction driver (541) arranged on the X-direction carrying platform (534), a Y-direction guide rail (542) arranged on the X-direction carrying platform (534), a Y-direction carrying platform (543) slidably arranged on the Y-direction guide rail (542) and for mounting the X-ray source (51), a Y-direction connecting seat (544) arranged on the Y-direction carrying platform (543), and a Y-direction screw nut pair (545) arranged between the Y-direction connecting seat (544) and the Y-direction driver (541).

5. The material counting machine with a mobile X-ray source according to claim 4, characterized in that: The number of the Y-direction guide rails (542) is three; the Y-direction carrying platform (543) includes a U-shaped plate portion (543a) and a handle portion (543b) arranged on one side of the U-shaped plate portion (543a), the opening direction of the U-shaped plate portion (543a) is parallel to the extension direction of the Y-direction guide rail (542), the U-shaped plate portion (543a) is slidably arranged on two of the Y-direction guide rails (542), the U-shaped plate portion (543a) is connected to the X-ray source (51), the handle portion (543b) is slidably arranged on the remaining Y-direction guide rail (542), and the handle portion (543b) is connected to the Y-direction connecting seat (544).

6. The material counting machine with a mobile X-ray source according to claim 4, characterized in that: The Y-axis movement adjustment mechanism (54) further comprises a support frame (546), the support frame (546) comprising a main fin (546a) connected to the Y-axis connection seat (544), a plurality of secondary fins (546b) arranged on opposite sides of the main fin (546a), and a support plate (546c) connected to the main fin (546a) and all the secondary fins (546b) at the same time; the X-ray source (51) comprises a high-voltage generator (511) and an X-ray emitter (512) connected to the high-voltage generator (511), the high-voltage generator (511) being arranged on the support plate (546c), and the X-ray emitter (512) being arranged on the Y-axis carrying platform (543).

7. The material counting machine with a mobile X-ray source according to claim 1, characterized in that: The positioning device (52) is a camera, and the camera and the emission window (513) of the X-ray source (51) are arranged side by side.

8. The material counting machine with a mobile X-ray source according to claim 1, characterized in that: The bearing surface (41) of the support frame (4) has a cross-shaped reference line.

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