X-ray detector moving system with angle adjusting function

Abstract

The invention discloses an X-ray detector moving system with an angle adjusting function. The X-ray detector moving system comprises a stand column, a detector X-axis moving device, a detector Y-axis moving device, a detector sliding seat, a detector angle adjuster, an X-ray detector and a CCD camera. The two ends of the detector Y-axis moving device are installed on the two detector X-axis moving devices. The detector sliding seat is installed on the detector Y-axis moving device, the detector angle adjuster and the CCD camera are installed at the lower end of the detector sliding seat, the X-ray detector is installed at the lower end of the detector angle adjuster, and the detector angle adjuster is used for adjusting the angle of the X-ray detector. The X-ray detector is used for detecting the energy of X-rays penetrating through the detection position of the PCB, and the CCD camera is used for carrying out visual positioning on the detection position of the PCB. According to the invention, the thrust balance is good, the angle of the X-ray detector can be adjusted, the X-ray detector can detect the detailed structure of the PCB from different angles, and the detection precision is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of PCB detection equipment, and particularly relates to an X-ray detector moving system with an angle adjusting function. BACKGROUND

[0002] After a PCB is manufactured, surface detection and internal detection need to be performed. Surface detection is relatively easy and can be performed by using a visual lens. However, the internal structure of the PCB, such as internal layer circuit, hole and material, cannot be detected by using the visual lens and needs to be detected by using an X-ray detection device.

[0003] In the prior art, the X-ray detection device of the PCB usually includes an X-ray emitting system, an X-ray receiving system and a PCB moving system. The X-ray emitting system is usually located below a PCB bearing system and includes an X-ray emitting source moving device and an X-ray emitting source installed on the X-ray emitting source moving device. The X-ray receiving system is usually located above the PCB bearing system and includes an X-ray detector moving device and an X-ray detector installed on the X-ray detector moving device. The X-ray detector moving device includes a detector X-axis moving device and a detector Y-axis moving device. The detector Y-axis moving device is installed on the detector X-axis moving device, and the X-ray detector is installed on the detector Y-axis moving device. The PCB bearing system is used to bear the PCB and make the PCB located between the X-ray emitting source of the X-ray emitting system and the X-ray detector of the X-ray receiving system. When the PCB is detected, the position of the PCB is adjusted by the PCB bearing system. The X-ray emitting source is moved to the position directly below the set detection position of the PCB by the X-ray emitting source moving device. The X-ray detector is moved to the position directly above the set detection position of the PCB by the X-ray detector moving device. Then, the X-ray emitting source emits X-rays to the set detection position of the PCB. After the X-rays penetrate the set detection position of the PCB, the X-rays reach the X-ray detector. The X-ray detector transmits the energy distribution data information of the detected X-rays to a control system. The control system determines whether the set detection position of the PCB is qualified according to the energy distribution data information. The X-ray detection device can shoot the internal structure of the PCB into a black-and-white image based on the principle of X-ray perspective. The image is analyzed and measured to determine whether the PCB is qualified.

[0004] However, the X-ray detection equipment in the prior art has the following technical problems: (1) The X-ray detector moving device of the X-ray receiving system usually adopts a screw motor transmission mechanism. The screw motor transmission mechanism has a slow transmission speed, low accuracy, and large vibration. In addition, the X-ray detector moving device is prone to shaking when moving the X-ray detector, which further reduces the accuracy; (2) The X-ray detector moving device usually has only one detector X-axis moving device. When a single detector X-axis moving device drives the detector Y-axis moving device to move, the thrust imbalance problem is prone to occur, which affects the detection accuracy of the PCB board; (3) The X-ray detector of the X-ray receiving system can only detect the detailed structure of the PCB board at a fixed vertical angle, and cannot detect the detailed structure of the PCB board at an inclined angle. Therefore, for some detailed structures of the PCB board that cannot be detected at a fixed vertical angle, the X-ray detector cannot detect them. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an X-ray detector moving system with angle adjustment function, which addresses the shortcomings of the prior art. The X-ray detector moving system has two detector X-axis moving devices, which together drive the detector Y-axis moving device to move, so that both ends can be supported and pushed, and the thrust balance is good. The X-ray detector moving system can adjust the angle of the X-ray detector through the detector angle adjuster, so that the X-ray detector can detect the detailed structure of the PCB board from different angles, and the detection accuracy is high.

[0006] To solve the above-mentioned technical problems, the technical solution of the present invention is: an X-ray detector moving system with angle adjustment function, comprising a column, a detector X-axis moving device, a detector Y-axis moving device, a detector sliding base, a detector angle adjuster, an X-ray detector, and a CCD camera; the column comprises two sets, each set comprising several columns arranged at intervals; the detector X-axis moving device comprises two units, one mounted on the upper end of one set of columns and the other mounted on the upper end of the other set of columns; one end of the detector Y-axis moving device is mounted on one of the detector X-axis moving devices, and the other end is mounted on the other detector X-axis moving device; the detector sliding base is mounted on the detector Y-axis moving device; the detector angle adjuster and the CCD camera are respectively mounted on the lower end of the detector sliding base; the X-ray detector is mounted on the lower end of the detector angle adjuster; the detector angle adjuster is used to adjust the angle of the X-ray detector; the X-ray detector is used to detect the X-ray energy passing through the detection position on the PCB board; and the CCD camera is used for visual positioning of the detection position on the PCB board.

[0007] Preferably, the detector X-axis moving device includes an X-axis support beam and an X-axis linear motor. One X-axis support beam of the detector X-axis moving device is mounted on the upper end of one set of columns along the X-axis direction, and the X-axis support beam of the other detector X-axis moving device is mounted on the upper end of another set of columns along the X-axis direction. X-axis slide rails are respectively mounted on the two X-axis support beams along the X-axis direction, and X-axis sliders are mounted on the X-axis slide rails, allowing the X-axis sliders to slide back and forth along the X-axis slide rails. One X-axis linear motor is mounted on the side of one of the X-axis support beams along the X-axis direction, and the other... An X-axis linear motor is mounted on the side of another X-axis support beam along the X-axis direction. The X-axis linear motor includes a cooperating X-axis linear stator and an X-axis mover. The length direction of the X-axis linear stator is parallel to the X-axis slide rail. One end of the detector Y-axis moving device is mounted on the X-axis slider and X-axis mover on one of the X-axis support beams, and the other end of the detector Y-axis moving device is mounted on the X-axis slider and X-axis mover on the other X-axis support beam. Driven by the X-axis linear motor, the detector Y-axis moving device can move back and forth along the X-axis direction.

[0008] Preferably, each X-axis support beam is provided with two parallel X-axis slide rails, and each X-axis slide rail is provided with two X-axis sliders.

[0009] Preferably, the detector Y-axis moving device includes a Y-axis support beam, a Y-axis slide rail, a Y-axis slider, and a Y-axis linear motor. The Y-axis support beam is arranged along the Y-axis direction, with one end mounted on an X-axis slider and an X-axis mover on one of the X-axis support beams, and the other end mounted on an X-axis slider and an X-axis mover on another X-axis support beam. The Y-axis slide rail is mounted on the side of the Y-axis support beam along the Y-axis direction, and the Y-axis slider is slidably mounted on the Y-axis slide rail. The Y-axis linear motor is mounted on the upper part of the Y-axis support beam along the Y-axis direction, and includes a Y-axis linear stator and a Y-axis mover that cooperate with each other. The length direction of the Y-axis linear stator is parallel to the Y-axis slide rail. The detector sliding seat is mounted on the Y-axis slider and the Y-axis mover, and under the driving action of the Y-axis linear motor, it can drive the detector sliding seat to move back and forth along the Y-axis direction.

[0010] Preferably, the detector sliding base includes a front sliding side plate, an upper sliding side plate, a rear sliding side plate, and a lower sliding side plate connected in sequence. The Y-axis slide rails are respectively installed on the front and rear sides of the Y-axis support beam. Two Y-axis sliders are installed on each Y-axis slide rail. The front sliding side plate is connected to the Y-axis mover and the Y-axis slider on the front side of the Y-axis support beam. The rear sliding side plate is connected to the Y-axis slider on the rear side of the Y-axis support beam. The detector angle adjuster and the CCD camera are respectively installed on the lower side of the lower sliding side plate.

[0011] Preferably, the detector angle adjuster includes an adjustment bracket, an angle adjustment motor, an angle adjustment transmission mechanism, and an angle adjustment shaft. The upper end of the adjustment bracket is connected to the lower end of the detector sliding seat. The angle adjustment motor is installed inside the adjustment bracket. The angle adjustment shaft is rotatably installed at the lower end of the adjustment bracket. The upper end of the X-ray detector is connected to the angle adjustment shaft. The angle adjustment transmission mechanism is installed between the motor shaft of the angle adjustment motor and the angle adjustment shaft. Under the driving action of the angle adjustment motor, the angle adjustment shaft and the X-ray detector can be driven to rotate clockwise or counterclockwise through the angle adjustment transmission mechanism to adjust the angle of the X-ray detector.

[0012] Preferably, the adjustment bracket includes several vertical support rods connected to the lower end of the detector sliding seat, and a support plate is horizontally connected to the lower end of the support rods. The angle adjustment motor is mounted on the support plate. Two bearing positioning plates are connected to the lower end of the support plate, and bearings are installed in the two bearing positioning plates respectively. Two bearings are installed in the two ends of the angle adjustment shaft respectively. A detector head connecting plate is connected to the upper end of the X-ray detector. Several connecting ears are provided on the upper side of the detector head connecting plate, and the connecting ears are connected to the angle adjustment shaft.

[0013] Preferably, one side of the bearing positioning plate is provided with a scale for marking the angle, and one side of one of the bearing positioning plates is also provided with several angle sensors for sensing the angle of the X-ray detector. One end of the detector head connecting plate is equipped with an angle sensing plate that cooperates with the angle sensor. During the clockwise or counterclockwise rotation of the X-ray detector, the angle sensing plate can extend into the corresponding angle sensor.

[0014] Preferably, the angle adjustment transmission mechanism includes an upper pulley, a lower pulley, and a transmission belt. The upper pulley is connected to the motor shaft of the angle adjustment motor, the lower pulley is connected to the angle adjustment shaft, and the transmission belt is fitted over the upper and lower pulleys. The support plate of the adjustment bracket has a support plate through hole for the transmission belt to pass through.

[0015] Preferably, the X-ray detector moving system further includes a laser rangefinder, which is installed at the lower end of the detector sliding base and is used to measure the distance between the X-ray detector and the PCB board.

[0016] The beneficial effects of the present invention are: (1) Since the present invention has two sets of columns, each set of columns includes several columns arranged at intervals, and the number of detector X-axis moving devices is two, one detector X-axis moving device is installed on the upper end of one set of columns, and the other detector X-axis moving device is installed on the upper end of the other set of columns. One end of the detector Y-axis moving device is installed on one detector X-axis moving device, and the other end of the detector Y-axis moving device is installed on the other detector X-axis moving device. Therefore, the present invention drives the detector Y-axis moving device to move together through the two detector X-axis moving devices. Both ends of the detector Y-axis moving device can be supported and pushed, and the thrust balance is good, ensuring that the detector Y-axis moving device can move stably along the X-axis direction, thereby ensuring the detection accuracy of the X-ray detector; (2) Since the present invention's X-ray detector moving system includes a detector angle adjuster, the detector angle adjuster is installed at the lower end of the detector sliding seat. The X-ray detector is mounted at the lower end of the detector angle adjuster, which is used to adjust the angle of the X-ray detector. Therefore, the X-ray detector moving system of the present invention can adjust the angle of the X-ray detector through the detector angle adjuster, so that the X-ray detector can detect the detailed structure of the PCB board from different angles. Attached Figure Description

[0017] Figure 1 This is a first-view overall structural diagram of the X-ray detector moving system.

[0018] Figure 2 This is a second-view overall structural diagram of the X-ray detector moving system.

[0019] Figure 3 This is a first-view dispersion diagram of the X-ray detector moving system.

[0020] Figure 4 This is a second-view dispersion structure diagram of the X-ray detector moving system.

[0021] Figure 5 This is an overall structural diagram of the detector slider, detector angle adjuster, X-ray detector, CCD camera, laser rangefinder, and protective housing.

[0022] Figure 6 This is a schematic diagram showing the dispersed structure of the detector slider, detector angle adjuster, X-ray detector, CCD camera, laser rangefinder, and protective housing.

[0023] Figure 7 This is a first-view diagram of the combined structure of the detector angle adjuster and the X-ray detector.

[0024] Figure 8This is a structural diagram of the second-view combination of the detector angle adjuster and the X-ray detector.

[0025] Figure 9 This is a structural diagram of the combination of a CCD camera and a laser rangefinder. Detailed Implementation

[0026] The structural and working principles of the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] like Figures 1-9 As shown, the present invention is an X-ray detector moving system 4 with angle adjustment function, including a column 41, a detector X-axis moving device 40, a detector Y-axis moving device 50, a detector sliding seat 61, a detector angle adjuster 62, an X-ray detector 60, and a CCD camera 63; the column 41 has two sets, each set of columns 41 including several columns 41 arranged at intervals; the detector X-axis moving device 40 has two components, one of which is installed on the upper end of one set of columns 41, and the other is installed on the upper end of the other set of columns 41; one end of the detector Y-axis moving device 50 is installed on one of the detectors. The detector is mounted on the X-axis moving device 40, and the other end of the detector Y-axis moving device 50 is mounted on another detector X-axis moving device 40; the detector sliding seat 61 is mounted on the detector Y-axis moving device 50, the detector angle adjuster 62 and the CCD camera 63 are respectively mounted on the lower end of the detector sliding seat 61, the X-ray detector 60 is mounted on the lower end of the detector angle adjuster 62, the detector angle adjuster 62 is used to adjust the angle of the X-ray detector 60, the X-ray detector 60 is used to detect the X-ray energy passing through the detection position of the PCB board (not shown), and the CCD camera 63 is used to visually locate the detection position of the PCB board.

[0028] In this invention, when inspecting a PCB board, the PCB board is placed below an X-ray detector 60, and an X-ray emission source (not shown) is also placed below the PCB board. The X-ray emission source emits X-rays towards a designated detection position on the PCB board. After penetrating the designated detection position, the X-rays reach the X-ray detector 60. The X-ray detector 60 transmits the energy distribution data of the detected X-rays to the control system. The control system determines whether the designated detection position of the PCB board is qualified based on the energy distribution data. During the process of the X-ray detector 60 detecting X-rays that have penetrated the designated detection position of the PCB board, for the detailed structures of the PCB board that the X-ray detector 60 cannot detect at a fixed vertical angle, the detector angle adjuster 62 adjusts the angle of the X-ray detector 60 so that the X-ray detector 60 can detect the detailed structures of the PCB board at a set tilt angle.

[0029] This invention uses two detector X-axis moving devices 40 to drive the detector Y-axis moving device 50 together. Both ends of the detector Y-axis moving device 50 are supported, resulting in good thrust balance and ensuring that the detector Y-axis moving device 50 can move stably along the X-axis direction, thereby ensuring the detection accuracy of the X-ray detector 60. Furthermore, since the X-ray detector moving system 4 includes a detector angle adjuster 62, which is installed at the lower end of the detector sliding seat 61, and the X-ray detector 60 is installed at the lower end of the detector angle adjuster 62, the X-ray detector moving system 4 can adjust the angle of the X-ray detector 60 through the detector angle adjuster 62, enabling the X-ray detector 60 to detect the detailed structure of the PCB board from different angles.

[0030] like Figures 1-4 As shown, the detector X-axis moving device 40 includes an X-axis support beam 42 and an X-axis linear motor 43. One X-axis support beam 42 of the detector X-axis moving device 40 is mounted along the X-axis direction on the upper end of one set of columns 41, and the other X-axis support beam 42 of the detector X-axis moving device 40 is mounted along the X-axis direction on the upper end of another set of columns 41. X-axis slide rails 44 are respectively mounted on the two X-axis support beams 42 along the X-axis direction, and X-axis sliders 45 are mounted on the X-axis slide rails 44, allowing the X-axis sliders 45 to slide back and forth along the X-axis slide rails 44. One X-axis linear motor 43 is mounted along the X-axis direction on the side of one X-axis support beam 42, and the other X-axis linear motor 43 is mounted along the X-axis direction on the side of the detector X-axis moving device 40. An X-axis linear motor 43 is mounted on the side of another X-axis support beam 42 along the X-axis direction. The X-axis linear motor 43 includes a cooperating X-axis linear stator 431 and an X-axis mover 432. The length direction of the X-axis linear stator 431 is parallel to the X-axis slide rail 44. One end of the detector Y-axis moving device 50 is mounted on the X-axis slider 45 and the X-axis mover 432 on one of the X-axis support beams 42, and the other end of the detector Y-axis moving device 50 is mounted on the X-axis slider 45 and the X-axis mover 432 on the other X-axis support beam 42. Under the driving action of the X-axis linear motor 43, the detector Y-axis moving device 50 can be driven to move back and forth along the X-axis direction. This invention employs two X-axis support beams 42 and two X-axis linear motors 43. The two X-axis linear motors 43 synchronously drive the detector Y-axis moving device 50 to move back and forth along the X-axis direction from both ends. Both ends of the detector Y-axis moving device 50 are supported and pushed, and the force is balanced, which makes the detector Y-axis moving device 50 move with good stability and not easy to shake. Furthermore, due to the high speed, high precision and low vibration of the linear motors, the detector Y-axis moving device 50 moves with high speed, high precision and low vibration.

[0031] likeFigures 1-4 As shown, each X-axis support beam 42 is provided with two parallel X-axis slide rails 44, and each X-axis slide rail 44 is provided with two X-axis sliders 45. This structure allows both ends of the detector Y-axis moving device 50 to be supported by two X-axis slide rails 44 and four X-axis sliders 45, resulting in less swaying during movement of the detector Y-axis moving device 50, further improving movement accuracy and reducing vibration.

[0032] like Figures 1-4 As shown, the detector Y-axis moving device 50 includes a Y-axis support beam 51, a Y-axis slide rail 52, a Y-axis slider 53, and a Y-axis linear motor 54. The Y-axis support beam 51 is arranged along the Y-axis direction. One end of the Y-axis support beam 51 is mounted on the X-axis slider 45 and X-axis mover 432 on one of the X-axis support beams 42, and the other end of the Y-axis support beam 51 is mounted on the X-axis slider 45 and X-axis mover 432 on another X-axis support beam 42. The Y-axis slide rail 52 is mounted on the side of the Y-axis support beam 51 along the Y-axis direction. The Y-axis slider 53 is slidably mounted on the Y-axis slide rail 52; the Y-axis linear motor 54 is mounted on the upper part of the Y-axis support beam 51 along the Y-axis direction, and the Y-axis linear motor 54 includes a Y-axis linear stator 541 and a Y-axis mover 542 that cooperate with each other, with the length direction of the Y-axis linear stator 541 parallel to the Y-axis slide rail 52; the detector sliding seat 61 is mounted on the Y-axis slider 53 and the Y-axis mover 542, and under the driving action of the Y-axis linear motor 54, it can drive the detector sliding seat 61 to move back and forth along the Y-axis direction. The detector Y-axis moving device 50 of the present invention uses a Y-axis linear motor 54 to drive the detector sliding seat 61 to move back and forth, and the linear motor has high speed, high precision and low vibration.

[0033] like Figure 5 and Figure 6As shown, the detector sliding seat 61 includes a front sliding side plate 611, an upper sliding side plate 613, a rear sliding side plate 612, and a lower sliding side plate 614 connected in sequence. The Y-axis slide rails 52 are respectively installed on the front and rear sides of the Y-axis support beam 51. Two Y-axis sliders 53 are respectively installed on each Y-axis slide rail 52. The front sliding side plate 611 is connected to the Y-axis mover 542 and the Y-axis sliders 53 on the front side of the Y-axis support beam 51. The rear sliding side plate 612 is connected to the Y-axis sliders 53 on the rear side of the Y-axis support beam 51. The detector angle adjuster 62 and the CCD camera 63 are respectively installed on the lower side of the lower sliding side plate 614. This structure of the detector slide seat 61 allows the detector slide seat 61 to be fitted outside the Y-axis support beam 51, and both the front and rear ends of the detector slide seat 61 can be supported by the Y-axis slide rail 52, while the upper end of the detector slide seat 61 can be supported and driven by the Y-axis mover 542. The entire detector slide seat 61 has good stability, balanced force, and high movement accuracy.

[0034] like Figures 6-9 As shown, the detector angle adjuster 62 includes an adjustment bracket 621, an angle adjustment motor 622, an angle adjustment transmission mechanism 623, and an angle adjustment shaft 624. The upper end of the adjustment bracket 621 is connected to the lower end of the detector sliding seat 61. The angle adjustment motor 622 is installed inside the adjustment bracket 621. The angle adjustment shaft 624 is rotatably installed at the lower end of the adjustment bracket 621. The upper end of the X-ray detector 60 is connected to the angle adjustment shaft 624. The angle adjustment transmission mechanism 623 is installed between the motor shaft of the angle adjustment motor 622 and the angle adjustment shaft 624. Under the driving action of the angle adjustment motor 622, the angle adjustment shaft 624 and the X-ray detector 60 can be rotated clockwise or counterclockwise through the angle adjustment transmission mechanism 623 to adjust the angle of the X-ray detector 60. The present invention uses an angle adjustment motor 622 to drive the angle adjustment shaft 624 to rotate in the direction of rotation to adjust the angle of the X-ray detector 60. It is easy to control, has good stability and accuracy. The detector angle adjuster 62 of the present invention can adjust the angle of the X-ray detector 60 in a timely manner according to the detection requirements of the PCB board, so that the X-ray detector 60 can detect the detailed structure of the PCB board from different angles.

[0035] like Figures 6-8As shown, the adjustment bracket 621 includes several vertically connected bracket rods 6211 to the lower end of the detector sliding seat 61. The lower end of the bracket rods 6211 is horizontally connected to a bracket plate 6212. The angle adjustment motor 622 is mounted on the bracket plate 6212. The lower end of the bracket plate 6212 is connected to two bearing positioning plates 6213. Bearings 6214 are respectively installed inside the two bearing positioning plates 6213. The two ends of the angle adjustment shaft 624 are respectively installed inside two bearings 6214. The upper end of the X-ray detector 60 is connected to a detector head connecting plate 64. The upper side of the detector head connecting plate 64 is provided with several connecting ears 641. The connecting ears 641 are connected to the angle adjustment shaft 624. The adjustment bracket 621 of the present invention, by setting a bracket rod 6211 and laterally connecting a bracket plate 6212 at the lower end of the bracket rod 6211, can stably install the angle adjustment motor 622 inside the adjustment bracket 621. The present invention, by connecting two bearing positioning plates 6213 and installing bearings 6214 at the lower end of the bracket plate 6212, can position both ends of the angle adjustment shaft 624 and ensure smooth rotation. The present invention, by connecting a detector head connecting plate 64 at the upper end of the X-ray detector 60 and providing a connecting ear 641 on the upper side of the detector head connecting plate 64, can stably install the X-ray detector 60 on the angle adjustment shaft 624.

[0036] like Figures 6-8 As shown, one side of the bearing positioning plate 6213 is provided with a scale 6215 for marking angles. One side of each bearing positioning plate 6213 is also provided with several angle sensors 65 for sensing the angle of the X-ray detector 60. One end of the detector head connecting plate 64 is equipped with an angle sensing plate 651 that cooperates with the angle sensors 65. During the clockwise or counterclockwise rotation of the X-ray detector 60, the angle sensing plate 651 can extend into the corresponding angle sensor 65. This invention, through the sensing cooperation between the angle sensors 65 and the angle sensing plates 651, enables the angle sensors 65 to provide feedback to the control system on whether the X-ray detector 60 has reached the set angle.

[0037] like Figures 6-8 As shown, there are three angle sensors 65, one angle sensor 65 is used to sense the reference position of the X-ray detector 60 when it is not rotated, one angle sensor 65 is used to sense the position of the X-ray detector 60 when it is rotated 30 degrees clockwise, and one angle sensor 65 is used to sense the position of the X-ray detector 60 when it is rotated 30 degrees counterclockwise.

[0038] like Figure 8As shown, one end of the angle adjustment shaft 624 is connected to a pointer 66, which points to a scale 6215 on one side of another bearing positioning plate 6213. This invention, by setting the pointer 66, facilitates the operator's viewing of the angle of the X-ray detector 60.

[0039] like Figures 6-8 As shown, the angle adjustment transmission mechanism 623 includes an upper pulley 6231, a lower pulley 6232, and a transmission belt 6233. The upper pulley 6231 is connected to the motor shaft of the angle adjustment motor 622, the lower pulley 6232 is connected to the angle adjustment shaft 624, and the transmission belt 6233 is fitted over the upper pulley 6231 and the lower pulley 6232. The bracket plate 6212 of the adjustment bracket 621 is provided with a bracket plate through hole 6216 for the transmission belt 6233 to pass through.

[0040] like Figure 6 and Figure 9 As shown, the X-ray detector moving system 4 also includes a laser rangefinder 67, which is mounted on the lower end of the detector sliding base 61. The laser rangefinder 67 is used to measure the distance between the X-ray detector 60 and the PCB board. By setting the laser rangefinder 67, this invention can prevent the X-ray detector 60 from touching the PCB board and also enable the X-ray detector 60 to receive X-rays passing through the detection position on the PCB board at an optimal distance.

[0041] like Figure 6 and Figure 9 As shown, the lower end of the detector sliding base 61 is provided with an auxiliary bracket 68. The auxiliary bracket 68 is provided with a camera bracket 681, a fill light bracket 682, and a rangefinder bracket 683. The CCD camera 63 is mounted on the camera bracket 681. A ring fill light 684 is mounted on the fill light bracket 682, extending below the CCD camera 63. The laser rangefinder 67 is mounted on the rangefinder bracket 683. The camera bracket 681, fill light bracket 682, and rangefinder bracket 683 of this invention can all be adjusted vertically on the side of the auxiliary bracket 68. The ring fill light 684 can improve the shooting alignment effect of the CCD camera 63.

[0042] like Figure 5 and Figure 6 As shown, a protective cover 69 is connected to the lower end of the detector sliding base 61. The lower end of the protective cover 69 is open, and the CCD camera 63, the ring light 684, the detector angle adjuster 62, and the X-ray detector 60 are respectively located inside the protective cover 69. The protective cover 69 can provide good protection for the CCD camera 63, the ring light 684, the detector angle adjuster 62, and the X-ray detector 60.

[0043] The above description is merely a preferred embodiment of the present invention. Any minor modifications, equivalent changes, and alterations made to the above embodiments based on the technical solution of the present invention shall fall within the scope of the technical solution of the present invention.

Claims

1. An X-ray detector moving system with angle adjustment function, characterized in that: The device includes a column, a detector X-axis moving device, a detector Y-axis moving device, a detector sliding base, a detector angle adjuster, an X-ray detector, and a CCD camera. There are two sets of columns, each set consisting of several columns arranged at intervals. There are two detector X-axis moving devices, one mounted on the upper end of one set of columns and the other mounted on the upper end of the other set. One end of each detector Y-axis moving device is mounted on one of the detector X-axis moving devices, and the other end is mounted on the other detector X-axis moving device. The detector sliding base is mounted on the detector Y-axis moving device. The detector angle adjuster and CCD camera are respectively mounted on the lower end of the detector sliding base. The X-ray detector is mounted on the lower end of the detector angle adjuster. The detector angle adjuster is used to adjust the angle of the X-ray detector, and the X-ray detector is used to detect the X-ray energy passing through the detection position on the PCB board. The CCD camera is used for visual positioning of the detection position on the PCB board.

2. The X-ray detector moving system with angle adjustment function according to claim 1, characterized in that: The detector's X-axis moving device includes an X-axis support beam and an X-axis linear motor. One X-axis support beam of the detector's X-axis moving device is mounted along the X-axis direction on the upper end of one set of columns, and the other X-axis support beam of the detector's X-axis moving device is mounted along the X-axis direction on the upper end of another set of columns. X-axis slide rails are respectively mounted on the two X-axis support beams along the X-axis direction, and X-axis sliders are mounted on the X-axis slide rails, allowing the X-axis sliders to slide back and forth along the X-axis slide rails. One X-axis linear motor is mounted along the X-axis direction on the side of one of the X-axis support beams, and the other... An X-axis linear motor is mounted on the side of another X-axis support beam along the X-axis direction. The X-axis linear motor includes a cooperating X-axis linear stator and an X-axis moving part. The length direction of the X-axis linear stator is parallel to the X-axis slide rail. One end of the detector Y-axis moving device is mounted on the X-axis slider and X-axis moving part on one of the X-axis support beams, and the other end of the detector Y-axis moving device is mounted on the X-axis slider and X-axis moving part on the other X-axis support beam. Driven by the X-axis linear motor, the detector Y-axis moving device can move back and forth along the X-axis direction.

3. The X-ray detector moving system with angle adjustment function according to claim 2, characterized in that: Each X-axis support beam is equipped with two parallel X-axis slide rails, and each X-axis slide rail is equipped with two X-axis sliders.

4. The X-ray detector moving system with angle adjustment function according to claim 2, characterized in that: The detector's Y-axis moving device includes a Y-axis support beam, a Y-axis slide rail, a Y-axis slider, and a Y-axis linear motor. The Y-axis support beam is arranged along the Y-axis direction. One end of the Y-axis support beam is mounted on an X-axis slider and an X-axis mover on one of the X-axis support beams, and the other end of the Y-axis support beam is mounted on an X-axis slider and an X-axis mover on another X-axis support beam. The Y-axis slide rail is mounted on the side of the Y-axis support beam along the Y-axis direction, and the Y-axis slider is slidably mounted on the Y-axis slide rail. The Y-axis linear motor is mounted on the upper part of the Y-axis support beam along the Y-axis direction. The Y-axis linear motor includes a Y-axis linear stator and a Y-axis mover that cooperate with each other. The length direction of the Y-axis linear stator is parallel to the Y-axis slide rail. The detector sliding seat is mounted on the Y-axis slider and the Y-axis mover, and under the driving action of the Y-axis linear motor, it can drive the detector sliding seat to move back and forth along the Y-axis direction.

5. The X-ray detector moving system with angle adjustment function according to claim 4, characterized in that: The detector sliding base includes a front sliding side plate, an upper sliding side plate, a rear sliding side plate, and a lower sliding side plate connected in sequence. The Y-axis slide rails are respectively installed on the front and rear sides of the Y-axis support beam. Two Y-axis sliders are installed on each Y-axis slide rail. The front sliding side plate is connected to the Y-axis mover and the Y-axis slider on the front side of the Y-axis support beam. The rear sliding side plate is connected to the Y-axis slider on the rear side of the Y-axis support beam. The detector angle adjuster and the CCD camera are respectively installed on the lower side of the lower sliding side plate.

6. The X-ray detector moving system with angle adjustment function according to claim 1, characterized in that: The detector angle adjuster includes an adjustment bracket, an angle adjustment motor, an angle adjustment transmission mechanism, and an angle adjustment shaft. The upper end of the adjustment bracket is connected to the lower end of the detector sliding seat. The angle adjustment motor is installed inside the adjustment bracket. The angle adjustment shaft is rotatably installed at the lower end of the adjustment bracket. The upper end of the X-ray detector is connected to the angle adjustment shaft. The angle adjustment transmission mechanism is installed between the motor shaft of the angle adjustment motor and the angle adjustment shaft. Under the driving action of the angle adjustment motor, the angle adjustment shaft and the X-ray detector can be driven to rotate clockwise or counterclockwise through the angle adjustment transmission mechanism to adjust the angle of the X-ray detector.

7. The X-ray detector moving system with angle adjustment function according to claim 6, characterized in that: The adjustment bracket includes several vertical support rods connected to the lower end of the detector sliding seat. The lower end of the support rods is horizontally connected to a support plate, and the angle adjustment motor is mounted on the support plate. The lower end of the support plate is connected to two bearing positioning plates, and bearings are installed inside the two bearing positioning plates. The two ends of the angle adjustment shaft are respectively installed inside two bearings. The upper end of the X-ray detector is connected to a detector head connecting plate. The upper side of the detector head connecting plate is provided with several connecting ears, and the connecting ears are connected to the angle adjustment shaft.

8. The X-ray detector moving system with angle adjustment function according to claim 7, characterized in that: One side of the bearing positioning plate is provided with a scale for marking the angle. One side of one of the bearing positioning plates is also provided with several angle sensors for sensing the angle of the X-ray detector. One end of the detector head connecting plate is equipped with an angle sensing plate that cooperates with the angle sensor. During the clockwise or counterclockwise rotation of the X-ray detector, the angle sensing plate can extend into the corresponding angle sensor.

9. The X-ray detector moving system with angle adjustment function according to claim 7, characterized in that: The angle adjustment transmission mechanism includes an upper pulley, a lower pulley, and a transmission belt. The upper pulley is connected to the motor shaft of the angle adjustment motor, the lower pulley is connected to the angle adjustment shaft, and the transmission belt is fitted over the upper and lower pulleys. The support plate of the adjustment bracket has a through hole for the transmission belt to pass through.

10. The X-ray detector moving system with angle adjustment function according to claim 1, characterized in that: The X-ray detector moving system also includes a laser rangefinder, which is installed at the lower end of the detector sliding base and is used to measure the distance between the X-ray detector and the PCB board.

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