CN-224216047-U - Printed circuit board detection equipment

CN224216047UCN 224216047 UCN224216047 UCN 224216047UCN-224216047-U

Abstract

The utility model discloses a printed circuit board detection device which comprises a detection body, an image capturing component, a laser ranging sensor and a processing component. The detecting body comprises a working plate and an adjusting module. The working board carries at least one printed circuit board. The adjusting module adjusts the image capturing component and the laser ranging sensor to be positioned above at least one printed circuit board. The processing component obtains an image of the printed circuit board through the image capturing component and obtains the number of pixels of the printed circuit board according to the outline of the printed circuit board. The processing component calculates the time between the laser ranging sensor sending out the emitted light and receiving the reflected light to obtain a measured thickness. When the number of pixels of the printed circuit board is larger than a threshold value and the measured thickness is larger than a preset thickness, the processing component sends out a lamination message so as to ensure that the printed circuit board is indeed laminated, and further the detection accuracy of the printed circuit board is increased.

Inventors

SHI HANQING
CHEN WENZHE

Assignees

健鼎（湖北）电子有限公司

Dates

Publication Date: 20260508
Application Date: 20250521

Claims (9)

1. A printed circuit board inspection apparatus, characterized in that the printed circuit board inspection apparatus comprises: a test body, comprising: a working plate for carrying at least one printed circuit board, and The adjusting module is arranged on the working plate at intervals, wherein the adjusting module is provided with an installation assembly, and the installation assembly is arranged above the working plate at intervals along a height direction; the image capturing assembly is arranged on the mounting assembly and can face at least one printed circuit board so as to acquire images of the printed circuit board; A laser ranging sensor disposed on the mounting assembly and spaced apart from the image capturing assembly, wherein the laser ranging sensor faces at least one of the printed circuit boards to emit a light and receive a reflected light, and The processing component is arranged in the detection body and is electrically coupled with the image capturing component and the laser ranging sensor, wherein the processing component obtains a printed circuit board image through the image capturing component and calculates the number of pixels of the printed circuit board image according to the outline of the printed circuit board to obtain the number of pixels of the printed circuit board, the processing component calculates the time from sending the emitted light to receiving the reflected light of the laser ranging sensor to obtain a measurement thickness, and when the processing component compares the number of pixels of the printed circuit board to be larger than a threshold value and the measurement thickness to be larger than a preset thickness, the processing component sends out a set of information to confirm that a laminated board exists.
2. The apparatus of claim 1, wherein the processing component segments the printed circuit board image according to the contour of the printed circuit board to generate a printed circuit board contour image, and wherein the processing component calculates pixels of the printed circuit board contour image to obtain the number of pixels of the printed circuit board.
3. The apparatus according to claim 1, wherein the processing unit calculates a sensing distance according to a time difference between an emission time of the emitted light and a receiving time of the reflected light, and calculates the measurement thickness according to a distance between the laser ranging sensor and the work plate and the sensing distance.
4. The device of claim 1, wherein the adjustment module comprises a lateral adjustment assembly and a longitudinal adjustment assembly, the lateral adjustment assembly is vertically disposed on the longitudinal adjustment assembly, the lateral adjustment assembly has two ends located on opposite sides, one end of the lateral adjustment assembly is provided with the mounting assembly, and the other end of the lateral adjustment assembly is connected to the longitudinal adjustment assembly, wherein the longitudinal adjustment assembly can drive the lateral adjustment assembly to move along the height direction so as to determine the distance between the laser ranging sensor and the working plate.
5. The apparatus of claim 4, wherein the lateral adjustment assembly is configured to move the mounting assembly in a lateral direction perpendicular to the height direction such that the mounting assembly is positioned above the work plate.
6. The printed circuit board inspection apparatus of claim 4 wherein the longitudinal adjustment assembly comprises: a fixed block; The guide rod is fixedly connected with the fixed block and is provided with a thread groove arranged along the height direction; a threaded rod having two ends on opposite sides, one end of the threaded rod engaging the thread groove; the sliding sleeve is provided with a perforation, wherein the other end of the threaded rod rotatably penetrates through the perforation; The sliding rod is hollow, the inner wall of the sliding rod is fixedly connected to the sliding sleeve, and the sliding rod is sleeved with the guide rod in a sliding manner; The rotating rod is provided with an external thread, rotatably penetrates through the sliding rod and is arranged at the other end of the threaded rod at intervals; A driving bevel gear engaged with the external thread of the rotating rod, and A driven bevel gear engaged with the driving bevel gear and the threaded rod; When the rotating rod rotates to drive the driving bevel gear to rotate, the driven bevel gear is linked to drive the threaded rod to rotate, so that the sliding sleeve and the sliding rod can move up and down along the height direction.
7. The apparatus of claim 1, further comprising a color scale sensor disposed on the mounting assembly and spaced apart from the imaging assembly and the laser ranging sensor, wherein the color scale sensor senses a trigger point of the work plate to actuate the imaging assembly and the laser ranging sensor.
8. The printed circuit board detection device of claim 7, wherein the color scale sensor senses the trigger point of the work plate to drive the imaging assembly to operate in synchronization with the laser ranging sensor.
9. The printed circuit board inspection apparatus of claim 1, wherein when the number of at least one of the printed circuit boards is plural, the size of each of the printed circuit boards is the same.

Description

Printed circuit board detection equipment Technical Field The present utility model relates to a testing device, and more particularly, to a printed circuit board testing device. Background In the existing detection equipment, during the production and processing process of the printed circuit board, the printed circuit board is required to be placed on a production line or other stations by using a printed circuit board placing machine, and in the operation process of the printed circuit board placing machine, two printed circuit boards which are stacked together can be output due to working errors, so that the subsequent normal production is affected, and therefore, the laminated board detection equipment of the printed circuit board is usually arranged at the downstream of the printed circuit board placing machine. Accordingly, the present inventors considered that the above-mentioned drawbacks could be improved, and have intensively studied and combined with the application of scientific principles, and finally have proposed an utility model which is reasonable in design and effectively improves the above-mentioned drawbacks. Disclosure of utility model The embodiment of the utility model provides a printed circuit board detection device which can effectively improve defects possibly generated by the existing printed circuit board detection device. One embodiment of the utility model discloses printed circuit board detection equipment, which comprises a detection body, an adjusting module and a processing component, wherein the detection body comprises a working plate and is used for bearing at least one printed circuit board, the adjusting module is arranged on the working plate at intervals, the adjusting module is provided with a mounting component which is arranged above the working plate at intervals along a height direction, an image capturing component which is arranged on the mounting component, the image capturing component can face at least one printed circuit board to obtain an image of the printed circuit board, a laser ranging sensor is arranged on the mounting component and is arranged on the mounting component at intervals with the image capturing component, the laser ranging sensor faces at least one printed circuit board to emit light rays and receive reflected light rays, the processing component is arranged in the detection body and is electrically coupled with the image capturing component and the laser ranging sensor, the processing component obtains an image of the printed circuit board through the image capturing component and calculates the number of pixels of the image of the printed circuit board according to the outline of the printed circuit board, the processing component calculates the number of pixels of the printed circuit board, the processing component calculates the thickness of the printed circuit board, and when the thickness of the laser ranging sensor emits light rays from the at least one printed circuit board at a preset thickness, and the laser ranging sensor emits a laminated board to a preset thickness when the thickness is larger, and the thickness of the printed circuit board is measured, and the processing component is electrically coupled with the processing component when the processing component is arranged in the detection body, and the printed circuit board has a comparing thickness. Optionally, the processing component divides the printed circuit board image according to the contour of the printed circuit board to generate a printed circuit board contour image, and the processing component calculates pixels of the printed circuit board contour image to obtain the number of pixels of the printed circuit board. Optionally, the processing component calculates a sensing distance according to a time difference between an emitting time of the emitted light and a receiving time of the reflected light, and calculates the measured thickness according to a distance between the laser ranging sensor and the working plate and the sensing distance. Optionally, the adjusting module comprises a transverse adjusting component and a longitudinal adjusting component, the transverse adjusting component is vertically arranged on the longitudinal adjusting component, the transverse adjusting component is provided with two ends located on opposite sides, one end of the transverse adjusting component is provided with a mounting component, the other end of the transverse adjusting component is connected with the longitudinal adjusting component, and the longitudinal adjusting component can drive the transverse adjusting component to move along the height direction so as to determine the distance between the laser ranging sensor and the working plate. Alternatively, the transverse adjusting component can drive the mounting component to move along a transverse direction perpendicular to the height direction, so that the mounting component can be positioned above the working pla