CN219891107U - An optical detector - Google Patents

Abstract

The utility model provides an optical detector. The optical detector mainly carries out optical detection to the PCB board, includes: a detection chamber formed within the housing and a spectrometer and a camera disposed within the detection chamber; the optical detector further includes: a dust collection box arranged on one side of the shell for dust collection; a dust collecting pipe fixedly installed in the detection chamber; and two ends of the telescopic pipe are respectively fixedly communicated with the dust collecting pipe and the dust collecting box cover. The optical detector provided by the utility model has the advantages of dust removal function, capability of absorbing and collecting fine particles such as dust and the like and capability of avoiding detection misjudgment.

Description

An optical detector

Technical field

The utility model relates to the technical field of PCB board optical detection equipment, in particular to an optical detector.

Background technique

The optical detector is a device based on optical principles that detects common defects encountered in welding production. During automatic inspection, the optical detector automatically scans the PCB board through the lens to collect the image of the PCB board, and obtains the image to be tested through image processing. The solder spot image compares the solder spot image with the built-in qualified solder spot image to detect defects in the solder joints on the PCB board, and displays/marks the defects through the display or automatic signs for maintenance personnel to repair.

However, when using an optical detector for detection, it is easily interfered by other factors, which in turn affects the detection results. For example, dust and other fine particles are attached to the components of the optical detector and the PCB board to be detected, which leads to misjudgment of the equipment and thus affects the detection. As a result, existing optical detectors do not have dust removal functions. For example: the patent document with the authorization announcement number CN212646520U is implemented in the above way, and the above technical problems also occur.

Therefore, it is necessary to provide a new optical detector to solve the above technical problems.

Contents of the invention

The technical problem solved by the utility model is to provide a device with a dust removal function that can absorb and collect fine particles such as dust to avoid detection misjudgments.

In order to solve the above technical problems, the optical detector provided by the utility model mainly performs optical detection on PCB boards, including: a detection chamber formed in the housing and a spectrometer and a camera arranged in the detection chamber; the optical detector also It includes: a dust collection box provided on one side of the housing for dust removal; a dust collection pipe fixedly installed in the detection chamber; both ends are fixedly connected to the dust collection pipe and the dust collection box cover respectively. telescopic tube, and an air intake filtering mechanism provided on the housing.

Preferably, the air intake filter includes: an installation box fixedly installed on the top of the housing; a connecting pipe fixedly connected to the housing and the installation box at both ends; and a connecting pipe fixedly connected to the installation box. The air intake pipe at the top; the air filter is slidably installed in the installation box.

Preferably, a plurality of support columns are symmetrically and fixedly installed on the bottom of the housing, a same base frame is fixedly installed on the bottom ends of the plurality of support columns, and a plurality of foot pads are symmetrically and fixedly installed on the bottom of the base frame. .

Preferably, a plurality of hydraulic cylinders are symmetrically and fixedly installed on the bottom of the base frame, a same installation plate is fixedly installed on the top ends of the output rods of the plurality of hydraulic cylinders, and a plurality of hydraulic cylinders are symmetrically and fixedly installed on the bottom of the installation plate. Towards the wheel.

Preferably, the dust collection box includes a box body, a dust filter bag, a dust suction fan and a communication pipe, the box body is arranged on one side of the housing, the dust filter bag is arranged in the box body, and the The vacuum fan is fixedly installed in the box, the connecting pipe is fixedly installed on the air inlet end of the dust collecting fan, and the air outlet end of the connecting pipe is fixedly installed with an air collecting hood. Located below the dust filter bag.

Preferably, a placement plate is fixedly installed on one side of the housing, and a plurality of limiting grooves are symmetrically provided on the top of the placing plate. Limiting blocks are slidably installed in the plurality of limiting grooves. The top ends of the limiting blocks are fixedly connected to the bottom of the box.

Preferably, a collection cavity and an installation cavity are provided in the box. The collection cavity is adapted to the dust filter bag. The installation cavity is adapted to the dust suction fan. On one side of the box, A hinge is fixedly installed, an access door is fixedly installed on the hinge, the access door is adapted to the installation cavity, and a plurality of air outlets are provided on the access door.

Compared with related technologies, the optical detector provided by the present utility model has the following beneficial effects:

The utility model provides an optical detector:

The utility model adopts a dust collection box combined with a dust collecting pipe and a telescopic pipe to collect dust and other fine particles by absorbing and removing dust, thereby avoiding detection misjudgments and improving detection accuracy.

Description of the drawings

Figure 1 is a schematic front structural view of a preferred embodiment of the optical detector provided by the present invention;

Figure 2 is a schematic diagram of the front cross-sectional structure of the utility model;

Figure 3 is an enlarged structural schematic diagram of part A shown in Figure 2;

Figure 4 is a schematic structural diagram of the base frame of the utility model.

Numbers in the figure: 1. Housing; 2. Detection chamber; 3. Spectrometer; 4. Camera; 5. Dust collection box; 6. Dust collection tube; 7. Telescopic tube; 8. Installation box; 9. Connecting tube; 10 , air intake pipe; 11. air filter; 12. support column; 13. base frame; 14. foot pad; 15. hydraulic cylinder; 16. mounting plate; 17. universal wheel; 18. box; 19. dust filter bag ; 20. Vacuum fan; 21. Connecting pipe.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and embodiments.

Please refer to Figures 1 to 4 in conjunction, wherein Figure 1 is a schematic front structural view of a preferred embodiment of the optical detector provided by the present invention; Figure 2 is a schematic front cross-sectional structural view of the present utility model; Figure 3 is an enlarged structural diagram of part A shown in Figure 2; Figure 4 is a structural diagram of the base frame of the present utility model.

The optical detector provided by the utility model mainly performs optical detection on PCB boards, and includes: a detection chamber 2 formed in the housing 1 and a spectrometer 3 and a camera 4 arranged in the detection chamber 2; the optical detector It also includes: a dust collection box 5 provided on one side of the housing 1 for dust removal; a dust collection pipe 6 fixedly installed in the detection chamber 2; both ends are respectively connected to the dust collection pipe 6 and the The telescopic tube 7 connected to the lid of the vacuum box 5 is fixed, and the air intake filtering mechanism is provided on the housing 1 .

It should be noted that when using an optical detector for detection, it is easy to be interfered by other factors, which in turn affects the detection results. For example, dust and other fine particles are attached to the components of the optical detector and the PCB board to be detected, which leads to misjudgment of the equipment. , so dust removal is required;

When using this optical detector to detect the PCB board, the personnel starts the dust suction fan 20 in the dust suction box 5. The running dust suction fan 20 cooperates with the communication pipe 21 to extract the air pressure in the box 18 to form a negative pressure, and detect Fine particles such as dust in the room 2 will enter the pipe along the dust collecting cover on the dust collection pipe 6, and then the dust will fall into the dust filter bag 19 along the telescopic pipe 7. By following this operation, the dust removal process can be achieved , which can avoid the impact of dust and other fine particles adhering to equipment components and PCB boards during inspection.

It is worth mentioning that the housing 1 also includes a start button, a start button, a display screen, a base plate, a movable door, a slide rail, a carrier platform, a mounting plate, a support plate, a lens, a door frame, a top plate, and an L-shaped link. Blocks, fastening bolts, batteries, light sources and other components. The specific detection steps are: first click the start button to open the first power unit to act on the movable door, let the second power unit act on the carrier platform, and make the carrier platform on the slide rail. Slide, and then the detection chamber pops up. At this time, the material to be tested is placed in the middle of the carrier platform. The second power unit then acts on the carrier platform to move into the detection chamber, and the first power unit acts on the movable door to close it. Then, press the start button with both hands to start the spectrometer and camera for detection. The camera and lens on the support board collect images of the object to be tested. The light source above the gantry shines and provides light to illuminate the material to be inspected to enhance the light and obtain better results. Clear image information improves detection accuracy. At the same time, the spectrometer measures the light reflected from the surface of the object to be measured. Then, the test solder spot image is compared with the built-in qualified solder spot image to detect defects. The final test inspection is displayed on the display screen. After the inspection is completed, the movable door is opened again, and the carrier platform moves out of the inspection room to take out the test object. Once the test is completed, multiple materials can be tested by repeating the above process.

In a further preferred embodiment of the present invention, the air intake filter includes: an installation box 8 fixedly installed on the top of the housing 1; both ends are fixedly connected to the housing 1 and the installation box 8 respectively. The connecting pipe 9; the air inlet pipe 10 fixedly connected to the top of the installation box 8; and the air filter 11 slidably installed in the installation box 8.

In this embodiment, the air inlet filter ensures normal air circulation when absorbing and removing dust, and filters out dust particles in the air. While absorbing and removing dust, external air enters the installation box 8 along the air inlet pipe 10, and then the air passes through After the air filter 11 filters out the dust particles, they will enter the detection chamber 2 along the connecting pipe 9 .

In a further preferred embodiment of the present invention, a plurality of support columns 12 are symmetrically fixed and installed on the bottom of the housing 1, and the same base frame 13 is fixedly installed on the bottom ends of the plurality of support columns 12. The base A plurality of foot pads 14 are symmetrically fixed on the bottom of the frame 13 .

In this embodiment, the support column 12 and the base frame 13 are arranged to support the housing 1 to avoid direct contact with the ground and prevent the housing 1 from being eroded by water when cleaning and mopping the floor. The installed foot pads 14 It can increase friction and play an anti-slip role.

In a further preferred embodiment of the present invention, a plurality of hydraulic cylinders 15 are symmetrically and fixedly installed on the bottom of the base frame 13, and the same mounting plate 16 is fixedly installed on the top ends of the output rods of the plurality of hydraulic cylinders 15. A plurality of universal wheels 17 are symmetrically fixed on the bottom of the mounting plate 16 .

In this embodiment, when the optical detector needs to be moved, personnel can start the hydraulic cylinder 15. The output rod of the operating hydraulic cylinder 15 extends to drive the mounting plate 16 to move downward. Then the universal wheel 17 will contact the ground. Personnel can push and move this device, and the rolling movement of the universal wheel 17 is more labor-saving.

In a further preferred embodiment of the present invention, the dust collection box 5 includes a box body 18, a dust filter bag 19, a dust collection fan 20 and a communication pipe 21. The box body 18 is arranged on one side of the housing 1 , the dust filter bag 19 is arranged in the box 18 , the dust suction fan 20 is fixedly installed in the box 18 , and the communication pipe 21 is fixedly installed on the air inlet end of the dust suction fan 20 , an air collecting hood is fixedly installed on the air outlet end of the communication pipe 21 , and the air collecting hood is located below the dust filter bag 19 .

In this embodiment, when the dust in the dust filter bag 19 needs to be cleaned, a person can pull the buckle on one side of the box 18 to separate it from the hook on the box lid, then open the box lid, and then remove the dust filter bag. 19 Take it out and clean the dust.

In a further preferred embodiment of the present invention, a plurality of limiting grooves are symmetrically provided on the top of the placing plate, and limiting blocks are slidably installed in the plurality of limiting grooves. The tops of the plurality of limiting blocks are Fixedly connected to the bottom of the box 18 .

In this embodiment, the placement plate is used to place the dust collection box 5, and the limiting grooves and limiting blocks are provided to limit the position of the dust collection box 5 to prevent it from sliding and falling when it moves.

In a further preferred embodiment of the present invention, the collection cavity is adapted to the dust filter bag 19 , the installation cavity is adapted to the dust suction fan 20 , and is fixedly installed on one side of the box 18 There is a hinge, an access door is fixedly installed on the hinge, the access door is adapted to the installation cavity, and a plurality of air outlets are provided on the access door.

In this embodiment, the collection cavity and the installation cavity are arranged to facilitate the separate installation of the dust filter bag 19 and the dust suction fan 20, and the access door is arranged to facilitate subsequent maintenance and repair of the dust suction fan 20.

To sum up, this optical detector can absorb and collect fine particles such as dust to avoid detection misjudgments.

Compared with related technologies, this utility model uses a dust collection box 5 in conjunction with a dust collection tube 6 and a telescopic tube 7 to collect dust and other fine particles in a dust-absorbing manner, thereby avoiding detection misjudgments and improving detection accuracy.

It should be noted that the equipment structure and drawings of the present utility model mainly describe the principle of the present utility model. In terms of the technical design principle, the settings of the device's power mechanism, power supply system and control system are not fully described. On the premise that those skilled in the art understand the principles of the above invention, they can clearly understand the details of its power mechanism, power supply system and control system.

The above descriptions are only examples of the present utility model, and do not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of the present utility model, or directly or indirectly used in other applications Relevant technical fields are similarly included in the scope of patent protection of the present utility model.

Claims (7)

1. An optical detector, which mainly performs optical inspection on PCB boards, including: A detection chamber formed in the housing and a spectrometer and camera arranged in the detection chamber; It is characterized in that the optical detector also includes: A dust collection box is provided on one side of the housing for dust removal; A dust collection pipe fixedly installed in the detection chamber; telescopic tubes whose two ends are fixedly connected to the dust collecting pipe and the dust collection box cover respectively, and An air intake filtering mechanism is provided on the housing. 2. The optical detector according to claim 1, characterized in that the air inlet filter includes: An installation box fixedly installed on the top of the housing; A connecting pipe with both ends fixedly connected to the housing and the installation box respectively; The air inlet pipe is fixedly connected to the top of the installation box; Slide the air filter installed inside the mounting box. 3. The optical detector according to claim 1, characterized in that a plurality of support columns are symmetrically fixed and installed on the bottom of the housing, and the same base frame is fixedly installed on the bottom ends of the plurality of support columns. A plurality of foot pads are symmetrically fixed on the bottom of the base frame. 4. The optical detector according to claim 3, characterized in that, a plurality of hydraulic cylinders are symmetrically and fixedly installed on the bottom of the base frame, and the same mounting plate is fixedly installed on the top ends of the output rods of the plurality of hydraulic cylinders. , a plurality of universal wheels are symmetrically and fixedly installed on the bottom of the mounting plate. 5. The optical detector according to claim 1, wherein the dust collection box includes a box body, a dust filter bag, a dust collection fan and a communication pipe, and the box body is arranged on one side of the housing. , the dust filter bag is arranged in the box, the dust suction fan is fixedly installed in the box, the communication pipe is fixedly installed on the air inlet end of the dust suction fan, and the air outlet of the communication pipe An air collecting hood is fixedly installed on the end, and the air collecting hood is located below the dust filter bag. 6. The optical detector according to claim 5, characterized in that a placement plate is fixedly installed on one side of the housing, and a plurality of limiting grooves are symmetrically provided on the top of the placement plate. Limiting blocks are slidably installed in the limiting grooves, and the tops of the plurality of limiting blocks are fixedly connected to the bottom of the box. 7. The optical detector according to claim 6, wherein a collection cavity and an installation cavity are provided in the box, the collection cavity is adapted to the dust filter bag, and the installation cavity is adapted to the suction bag. The dust fan is adapted to the dust blower. A hinge is fixedly installed on one side of the box. An access door is fixedly installed on the hinge. The access door is adapted to the installation cavity. There is an opening on the access door. There are multiple air outlets.