Cleaning system based on pcb optical detection unit
阅读说明:本技术 基于pcb光学检测机组的清理系统 (Cleaning system based on pcb optical detection unit ) 是由 孔繁源 谭本俊 于 2019-11-20 设计创作,主要内容包括:本发明涉及pcb检测技术领域,公开了基于pcb光学检测机组的清理系统,包括连接板、两条第一轨道以及第二轨道,第一轨道上设置有第一工字轨,第一工字轨上活动设置有第一扣件,两个第一扣件之间水平设置有呈中空状的透气板,透气板的下侧与第二轨道的顶部固定连接,连接板上设置有第一驱动机构,第二轨道上设置有连接架,且第二轨道上设置有第二驱动机构;透气板的一侧与透气板相通连接设置有第一导气管,透气板的下侧开设有第一清理孔,连接架和第一清理孔位于第二轨道的两侧;还包括有:连接管,连接管的一端可与第一导气管的一端螺纹连接或分离。本发明减小了清理难度。(The invention relates to the technical field of pcb detection, and discloses a cleaning system based on a pcb optical detection unit, which comprises a connecting plate, two first rails and a second rail, wherein a first I-shaped rail is arranged on the first rail, a first fastener is movably arranged on the first I-shaped rail, a hollow ventilating plate is horizontally arranged between the two first fasteners, the lower side of the ventilating plate is fixedly connected with the top of the second rail, a first driving mechanism is arranged on the connecting plate, a connecting frame is arranged on the second rail, and a second driving mechanism is arranged on the second rail; one side of the air permeable plate is communicated with the air permeable plate and is provided with a first air duct, the lower side of the air permeable plate is provided with a first cleaning hole, and the connecting frame and the first cleaning hole are positioned at two sides of the second track; also includes: one end of the connecting pipe can be in threaded connection or separated from one end of the first air duct. The invention reduces the cleaning difficulty.)
1. The utility model provides a clearance system based on pcb optical detection unit which characterized in that: the rail comprises a connecting plate (1), two first rails (2) arranged on the lower side of the connecting plate (1) in parallel, and a second rail (3) which is positioned below the first rails (2) and is perpendicular to the first rails (2), wherein a first I-shaped rail (4) is arranged on the first rails (2), a first fastener (5) movably matched with the first I-shaped rail (4) is movably arranged on the first I-shaped rail (4), a hollow ventilating plate (6) is horizontally arranged between the two first fasteners (5), the lower side of the ventilating plate (6) is fixedly connected with the top of the second rails (3), a first driving mechanism used for driving the ventilating plate (6) to move along the length direction of the first rails (2) is arranged on the connecting plate (1), and a connecting frame (7) is arranged on the second rails (3), a second driving mechanism for driving the connecting frame (7) to move along the length direction of the second track (3) is arranged on the second track (3);
one side of the air permeable plate (6) is communicated and connected with the air permeable plate (6) and is provided with a first air duct (8), the length direction of the first air duct (8) is consistent with that of the first track (2), a plurality of first cleaning holes (9) communicated with the air permeable plate (6) are uniformly formed in the lower side of the air permeable plate (6), and the connecting frame (7) and the first cleaning holes (9) are positioned on two sides of the second track (3); also includes:
and one end of the connecting pipe (10) can be in threaded connection or separated from one end of the first air duct (8).
2. The pcb-based optical inspection unit cleaning system of claim 1, wherein: a plurality of second cleaning holes (11) communicated with the ventilating plate (6) are uniformly formed in the upper side of the ventilating plate (6), the diameter of each second cleaning hole (11) is smaller than that of each first cleaning hole (9), and the number of the second cleaning holes (11) is smaller than that of the first cleaning holes (9).
3. The pcb-based optical inspection unit cleaning system of claim 1 or 2, wherein: the number of the first air ducts (8) is two, and the two first air ducts (8) are respectively connected to the positions 1/4 and 3/4 of the length direction of the breathable plate (6).
4. The pcb-based optical inspection unit cleaning system of claim 3, wherein: the connecting pipe (10) comprises a hard pipe part (10a) and a soft pipe part (10b) communicated with the hard pipe part (10a), and one end, far away from the soft pipe part (10b), of the hard pipe part (10a) can be in threaded connection with the first air duct (8).
5. The pcb-based optical inspection unit cleaning system of claim 4, wherein: one end of the hard pipe part (10a) far away from the soft pipe part (10b) is provided with a stabilizing sheet (13), and the plane where the stabilizing sheet (13) is located is perpendicular to the straight line where the axis of the hard pipe part (10a) is located.
6. The pcb-based optical inspection unit cleaning system of claim 1, wherein: the first driving mechanism comprises a first driving motor (14) fixedly arranged on the connecting plate (1) and a first driving lead screw (15) rotatably arranged on the connecting plate (1), the first driving motor (14) can drive the first driving lead screw (15) to rotate, a force transmission piece (16) is arranged in the middle of the upper side of the air permeable plate (6), and the first driving lead screw (15) is in threaded connection with the force transmission piece (16).
7. The pcb-based optical inspection unit cleaning system of claim 1, wherein: second track (3) is improved level and is provided with two second I-shaped rails (17), every all the activity is provided with on second I-shaped rail (17) with second I-shaped rail (17) matched with second fastener (18), two vertical being provided with on second fastener (18) passes gas board (19), pass one side of gas board (19) and be provided with and pass gas piece (20), the opposite side with link (7) fixed connection, second actuating mechanism including fixed set up in second driving motor (21) and rotation on second track (3) set up in second driving lead screw (22) on second track (3), second driving motor (21) can drive second driving lead screw (22) rotate, second driving lead screw (22) with pass gas piece (20) threaded connection.
8. The pcb-based optical inspection unit cleaning system of claim 7, wherein: pass gas board (19) and be the cavity form, pass on gas board (19) with pass gas board (19) and communicate with each other and be provided with second air duct (23), second air duct (23) can with connecting pipe (10) threaded connection or separation, pass the both sides of gas board (19) all seted up a plurality of with pass communicating third clearance hole (24) of gas board (19), the straight line at the axle center place of third clearance hole (24) with the straight line at the axle center place of first clearance hole (9) is mutually perpendicular.
9. The pcb-based optical inspection unit cleaning system of claim 8, wherein: the second air duct (23) and the first air duct (8) are positioned on the same side of the air transfer plate (19).
10. The pcb-based optical inspection unit cleaning system of claim 1, wherein: the air suction pipe is characterized by further comprising an air suction pipe, one end of the air suction pipe is right opposite to the connecting plate (1), and the other end of the air suction pipe is provided with an air suction pump.
Technical Field
The invention relates to the technical field of pcb detection, in particular to a cleaning system based on a pcb optical detection unit.
Background
Pcb (printed circuit board), also called printed circuit board, is an important electronic component, which is a support for electronic components and a carrier for electrical connection of electronic components. It is called a "printed" circuit board because it is made using electronic printing. Among them, in the production process of pcb, pcb needs to be detected, and the most common detection method at present is optical detection. The detection method comprises the steps that firstly, the pcb is transported and placed through a rail when in detection, when the position of the pcb is fixed, all or points or parts needing to be detected on the pcb are shot through an optical lens (generally comprising a camera, a light supplement lamp and the like), the shot parts are analyzed through human eyes or a computer after shooting, if the shot parts meet the requirements, the shot parts are qualified, and otherwise the shot parts are unqualified. Because of the large pcb area, the optical lens needs a rail structure for supporting and transporting the optical lens, so that the optical lens can perform a wide range of scanning and photographing.
The most common rail structure at present is shown in fig. 8 and 9, which mainly comprises a
Furthermore, in order to prevent dust from being accumulated in the inspection equipment and to keep the inspection equipment in a relatively clean environment, the
Disclosure of Invention
The invention aims to provide a cleaning system based on a pcb optical detection unit, and aims to solve the problem of high cleaning difficulty.
The technical purpose of the invention is realized by the following technical scheme: a cleaning system based on a pcb optical detection unit comprises a connecting plate, two first rails arranged on the lower side of the connecting plate in parallel and a cleaning device arranged below the first rails, and a second rail perpendicular to the first rail, the first rail is provided with a first I-shaped rail, a first fastener movably matched with the first I-shaped rail is movably arranged on the first I-shaped rail, a hollow ventilating plate is horizontally arranged between the two first fasteners, the lower side of the air permeable plate is fixedly connected with the top of the second track, the connecting plate is provided with a first driving mechanism for driving the air permeable plate to move along the length direction of the first track, the second track is provided with a connecting frame, the second track is provided with a second driving mechanism for driving the connecting frame to move along the length direction of the second track;
one side of the air permeable plate is communicated with the air permeable plate and is provided with a first air duct, the length direction of the first air duct is consistent with that of the first track, the lower side of the air permeable plate is uniformly provided with a plurality of first cleaning holes communicated with the air permeable plate, and the connecting frame and the first cleaning holes are positioned on two sides of the second track; also includes:
and one end of the connecting pipe can be in threaded connection or separated from one end of the first air duct.
The invention is further provided with: a plurality of second cleaning holes communicated with the air permeable plate are uniformly formed in the upper side of the air permeable plate, the diameter of each second cleaning hole is smaller than that of each first cleaning hole, and the number of the second cleaning holes is smaller than that of the first cleaning holes.
The invention is further provided with: the number of the first air ducts is two, and the two first air ducts are respectively connected to the 1/4 and 3/4 positions in the length direction of the breathable plate.
The invention is further provided with: the connecting pipe comprises a hard pipe part and a soft pipe part communicated with the hard pipe part, and one end of the hard pipe part, which is far away from the soft pipe part, can be in threaded connection with the first air guide pipe.
The invention is further provided with: the one end that hard pipe portion kept away from soft pipe portion is provided with the stabilizing piece, the plane at stabilizing piece place with the straight line looks perpendicular at the axle center place of hard pipe portion.
The invention is further provided with: the first driving mechanism comprises a first driving motor fixedly arranged on the connecting plate and a first driving lead screw rotatably arranged on the connecting plate, the first driving motor can drive the first driving lead screw to rotate, a force transmission piece is arranged in the middle of the upper side of the ventilating plate, and the first driving lead screw is in threaded connection with the force transmission piece.
The invention is further provided with: the level is provided with two second I-shaped rails on the second track, every all the activity be provided with on the second I-shaped rail with second I-shaped rail matched with second fastener, two vertically on the second fastener be provided with the biography gas board, one side of biography gas board is provided with the biography gas piece, the opposite side with link fixed connection, second actuating mechanism including fixed set up in second driving motor on the second track and rotate set up in second driving screw on the second track, second driving motor can drive second driving screw rotates, second driving screw with biography gas piece threaded connection.
The invention is further provided with: the gas transmission plate is hollow, a second gas guide pipe is arranged on the gas transmission plate and communicated with the gas transmission plate, the second gas guide pipe can be in threaded connection with or separated from the connecting pipe, a plurality of third cleaning holes communicated with the gas transmission plate are formed in the two sides of the gas transmission plate, and the straight line where the axis of each third cleaning hole is located is perpendicular to the straight line where the axis of each first cleaning hole is located.
The invention is further provided with: the second air duct and the first air duct are positioned on the same side of the air transmission plate.
The invention is further provided with: the air suction pipe is characterized by further comprising an air suction pipe, one end of the air suction pipe is right opposite to the connecting plate, and the other end of the air suction pipe is provided with an air suction pump.
The invention has the beneficial effects that: wherein still be connected with the optical lens that is used for shooing the pcb on the link and the conventional structures such as light filling lamp, link and optical lens all are in the orbital both sides of second with first clearance hole simultaneously, and link and optical lens can not all influence gaseous flow like this. So optical lens is when shooing the pcb, because structures such as ventilative board, first clearance hole do not influence the normal activity of second track and link, consequently can be normal shoot the pcb, and the going on that detection achievement can be normal. When the interior of the equipment needs to be cleaned, firstly, a hole is formed in a shell of the equipment (a plug corresponding to the hole can be arranged and used for blocking the hole when the hole is not used), then the connecting pipe can penetrate through the hole and then is in threaded connection with the first air guide pipe, then air is blown into the first air guide pipe through the equipment (such as a blower), and the air can be filtered and the like, so that the cleanliness of the air is improved; the air enters the ventilation plate through the first air duct, then is blown downwards through the first cleaning hole, and blows dust deposited on the equipment, and finally, conventional structures such as a suction fan can be penetrated into an opening at the upstream or the downstream of the equipment, the blown air can be sucked out, and meanwhile, the dust can also be sucked out, so that the cleaning effect is achieved. Simultaneously ventilative board can receive a actuating mechanism's drive, and moves about along first orbital length direction, and first clearance hole just can be more extensive blow the processing to equipment inside like this, and the clearance is effectual. Wherein, because the clearance need not dismantle the casing of equipment, also need not assemble after the clearance is accomplished, consequently its degree of difficulty of clearance is little a lot.
Furthermore, a program may be specially set for cleaning, so that the traveling speed of the second rail is reduced or adjusted, and the speed can be suitable for cleaning dust.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a first schematic structural diagram of an embodiment of a cleaning system based on a pcb optical inspection unit according to the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a schematic structural diagram of a second embodiment of a cleaning system based on a pcb optical inspection unit according to the present invention;
FIG. 4 is an enlarged view of portion B of FIG. 3;
FIG. 5 is a schematic structural view of an embodiment of a second rail and a connecting frame part in the cleaning system based on the pcb optical detection unit;
FIG. 6 is a schematic structural diagram of an embodiment of a connection frame in the cleaning system based on the pcb optical detection unit of the present invention;
FIG. 7 is a schematic structural diagram of an embodiment of a connection pipe in the cleaning system based on the pcb optical inspection unit of the present invention;
FIG. 8 is a schematic diagram of the optical inspection assembly portion of a pcb optical inspection apparatus used in the prior art;
fig. 9 is an enlarged view of a portion C in fig. 8.
In the figure, 1, connecting plate; 2. a first track; 3. a second track; 4. a first I-rail; 5. a first fastener; 6. a gas permeable plate; 7. a connecting frame; 8. a first air duct; 9. a first cleaning hole; 10. a connecting pipe; 10a, a hard pipe part; 10b, a soft tube part; 11. a second cleaning hole; 13. a stabilizing sheet; 14. a first drive motor; 15. a first drive screw; 16. a force transfer member; 17. a second I-rail; 18. a second fastener; 19. a gas transmission plate; 20. a gas transmission block; 21. a second drive motor; 22. a second drive screw; 23. a second air duct; 24. a third cleaning hole; 25. a housing; 26. an optical lens; 27. an I-shaped rail; 28. a fastener.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
A cleaning system based on a pcb optical detection unit is disclosed, as shown in fig. 1 to 7, and comprises a connection plate 1 (in actual use, the
a
and one end of the connecting
A plurality of second cleaning holes 11 communicated with the ventilating
The connecting
The first driving mechanism comprises a
The
The air suction pipe is characterized by further comprising an air suction pipe, one end of the air suction pipe is right opposite to the connecting
According to the cleaning system based on the pcb optical detection unit, the connecting
Furthermore, it is also possible to set a program specifically for cleaning, so that the speed of travel of the
Some air in the
Wherein connecting
During cleaning, the air flowing out of the
When the first driving mechanism drives the
The air suction pump continuously operates in the cleaning process, so that the air suction pipe is in a negative pressure state, and air of the equipment can be better pumped out; meanwhile, the upstream and downstream openings of the device can be blocked by arranging a baffle plate and the like, so that the inflow of external air can be prevented, and the flow rate of the air can be accelerated through the air suction pipe. In another embodiment, the pressure in the
Wherein, the
It should be noted that, in the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.
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