CN113447499B - Optical detection equipment and automatic detection system - Google Patents
Optical detection equipment and automatic detection system Download PDFInfo
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- CN113447499B CN113447499B CN202110710284.3A CN202110710284A CN113447499B CN 113447499 B CN113447499 B CN 113447499B CN 202110710284 A CN202110710284 A CN 202110710284A CN 113447499 B CN113447499 B CN 113447499B
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- 238000001514 detection method Methods 0.000 title claims abstract description 96
- 230000003287 optical effect Effects 0.000 title claims abstract description 73
- 230000007246 mechanism Effects 0.000 claims abstract description 118
- 238000007599 discharging Methods 0.000 claims abstract description 22
- 238000003825 pressing Methods 0.000 claims description 59
- 230000005540 biological transmission Effects 0.000 claims description 33
- 238000007689 inspection Methods 0.000 claims description 14
- 239000011521 glass Substances 0.000 claims description 12
- 230000000712 assembly Effects 0.000 claims description 9
- 238000000429 assembly Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 230000033001 locomotion Effects 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 150000003071 polychlorinated biphenyls Chemical class 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 238000013473 artificial intelligence Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/956—Inspecting patterns on the surface of objects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/956—Inspecting patterns on the surface of objects
- G01N2021/95638—Inspecting patterns on the surface of objects for PCB's
- G01N2021/95653—Through-holes
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- Life Sciences & Earth Sciences (AREA)
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- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention relates to the technical field of detection, in particular to optical detection equipment and an automatic detection system. The optical detection equipment comprises a machine table, a carrier device and a cover plate device, wherein the carrier device comprises a carrier plate assembly and a carrier plate translation driving mechanism; the cover plate device comprises a cover plate assembly, a cover plate translation driving mechanism and a cover plate lifting driving mechanism; when the output end of the cover plate lifting driving mechanism is connected with the cover plate assembly, the cover plate translation driving mechanism can drive the cover plate lifting driving mechanism to drive the cover plate assembly to move along the horizontal first direction, so that the cover plate assembly and the carrier plate assembly are staggered or overlapped, automatic feeding and discharging can be conveniently carried out, and the cover plate lifting driving mechanism can drive the cover plate assembly to lift along the vertical direction and be supported on the carrier plate assembly; when the output end of the cover plate lifting driving mechanism is separated from the cover plate assembly, the cover plate assembly is supported on the carrier plate assembly and can move along the horizontal first direction along with the carrier plate assembly so as to facilitate optical detection.
Description
Technical Field
The invention relates to the technical field of detection, in particular to optical detection equipment and an automatic detection system.
Background
Currently, the demand for PCBs is increasing due to the drive of the 5G and artificial intelligence industries. There is increasing production of PCBs. And the requirements for the refinement of the PCB are higher and higher. The accuracy of PCBs has now evolved to a level where the minimum aperture is 0.08mm, the minimum hole spacing is 0.1mm or even higher. Drilling is an important link in PCB manufacture, and besides via holes and part holes, slotted holes, special-shaped holes, board shapes and the like are required to be checked. How to detect the drilling quality of the PCB efficiently and accurately has become an important link for ensuring the quality of products.
The existing automatic optical detection equipment for drilling the PCB is generally used for detecting by adopting a mode of adding a glass platform and a glass cover plate, and the cover plate is mainly used for detecting by adopting an inclined strut opening and closing mode, so that the automatic optical detection equipment is only suitable for manual feeding and discharging detection, and a feeding area and a discharging area are overlapped, so that the efficiency is low.
Therefore, there is a need for an optical detection device to solve the above problems.
Disclosure of Invention
The invention aims to provide an optical detection device, which has good grafting performance by changing the opening and closing modes of a cover plate, can ensure the convenience of automatic feeding and discharging and improves the working efficiency.
The invention further aims to provide an automatic detection system, which can realize automatic feeding and discharging and automatic detection by applying the optical detection equipment, so that the production beat is effectively reduced, and the operation efficiency is high.
In order to achieve the above object, the following technical scheme is provided:
in a first aspect, there is provided an optical detection device comprising:
a machine table;
the carrier device comprises a carrier plate assembly and a carrier plate translation driving mechanism, wherein the carrier plate assembly is used for bearing a piece to be detected, the carrier plate translation driving mechanism is arranged on the machine table, and the carrier plate translation driving mechanism is used for driving the carrier plate assembly to move along a horizontal first direction;
the cover plate device comprises a cover plate assembly, a cover plate translation driving mechanism and a cover plate lifting driving mechanism, wherein the cover plate translation driving mechanism is arranged on the machine table, the cover plate lifting driving mechanism is arranged at the output end of the cover plate translation driving mechanism, and the output end of the cover plate lifting driving mechanism is connected with the cover plate assembly in a detachable manner.
As an alternative to the optical inspection apparatus, the optical inspection apparatus further comprises a pressing mechanism for pressing the carrier plate assembly and the cover plate assembly together.
As an alternative to the optical detection device, the pressing mechanism includes:
the compressing driving piece is arranged on the carrier plate assembly;
the pressing block is arranged at the output end of the pressing driving piece;
the pressure block is arranged on the cover plate assembly, and when the cover plate assembly is supported on the carrier plate assembly, the pressing driving piece can drive the pressure block to move downwards along the vertical direction and press on the pressure block, so that the cover plate assembly is pressed on the carrier plate assembly.
As an alternative scheme of the optical detection device, the pressing driving member can also drive the pressing block to rotate in a horizontal plane, so that the pressing block can be arranged opposite to the pressure bearing block, or the pressing block can avoid the pressure bearing block.
As an alternative scheme of the optical detection device, the pressure-bearing block comprises a connecting portion and a pressure-bearing portion, the connecting portion is fixed on the cover plate assembly, the pressure-bearing portion is arranged in parallel with the cover plate assembly, and the pressure-bearing block can be pressed on the pressure-bearing portion.
As an alternative scheme of the optical detection device, the carrier device further comprises a workbench, an output end of the carrier plate translation driving mechanism is connected with the workbench, and the carrier plate assembly is fixed on the workbench.
As an alternative to the optical detection device, the optical detection device further includes a detection mechanism, and the first position and the second position are located at two ends of the detection mechanism along a horizontal first direction, respectively.
As an alternative scheme of the optical detection device, when the output end of the cover plate lifting driving mechanism is connected with the cover plate assembly, the cover plate translation driving mechanism can drive the cover plate lifting driving mechanism and the cover plate assembly to move between a first position and a second position on the machine table along a horizontal first direction, the cover plate assembly can cover the upper part of the carrier plate assembly or can be staggered with the carrier plate assembly along the horizontal first direction in the first position, the cover plate assembly can cover the upper part of the carrier plate assembly or can be staggered with the carrier plate assembly along the horizontal first direction in the second position, and when the cover plate assembly is staggered with the carrier plate assembly, a part to be detected can be placed on the carrier plate assembly or the part to be detected on the carrier plate assembly can be removed; when the output end of the cover plate lifting driving mechanism is separated from the cover plate assembly, the cover plate assembly is supported on the carrier plate assembly and can move along a horizontal first direction along with the carrier plate assembly.
As an alternative to the optical inspection apparatus, the cover plate lifting driving mechanism may be capable of driving the cover plate assembly to lift in a vertical direction so as to be away from or supported on the carrier plate assembly, the cover plate lifting driving mechanism including:
the lifting driving piece is arranged at the output end of the cover plate translation driving mechanism;
the supporting plate is arranged at the output end of the lifting driving piece;
the plug assembly comprises a plug connector and a plug hole, one of the plug connector and the plug hole is arranged on the supporting plate, the other one of the plug connector and the plug hole is arranged on the cover plate assembly, and the lifting driving piece can drive the supporting plate to lift so as to enable the plug connector to be connected with the plug hole in a separable manner.
As an alternative scheme of the optical detection device, the cover plate assembly comprises a glass cover plate, a cover plate frame and a connecting plate, wherein the connecting plate is arranged on two sides of the glass cover plate along the horizontal second direction, one or more plug holes are formed in the connecting plate, and plug connectors which are arranged corresponding to the plug holes are arranged in the supporting plate.
As an alternative to the optical detection device, the cover plate translation driving mechanism includes:
the power assembly is arranged on the machine table;
the guide assembly comprises a guide rail and a sliding block which are in sliding fit, the guide rail is arranged on the machine table along the horizontal first direction, the sliding block is used for installing a cover plate lifting driving mechanism, and the power assembly can drive the sliding block to drive the cover plate lifting driving mechanism to move along the guide rail.
As an alternative scheme of the optical detection device, the cover plate translation driving mechanism further comprises a transmission assembly, at least two groups of guide assemblies are respectively arranged on two sides of the cover plate assembly along the horizontal second direction, and the power assembly can drive the sliding blocks in the two groups of guide assemblies to move along the guide rail at the same time through the transmission assembly.
As an alternative scheme of the optical detection device, the power assembly comprises a servo motor and a transmission shaft, and the transmission assembly is a belt transmission assembly connected with the transmission shaft in a transmission way;
or the power assembly comprises a servo motor, and the transmission assembly is a screw transmission assembly;
or the power assembly comprises a servo motor and a moving guide rail fixed on the machine table, the servo motor is arranged on the moving guide rail in a sliding mode, and the transmission assembly is a rack transmission assembly.
In a second aspect, an automatic detection system is provided, including a feeding device, a discharging device and an optical detection device as described above, where the feeding device and the discharging device are respectively located at two ends of the optical detection device along the horizontal first direction, the feeding device conveys the to-be-detected piece to the optical detection device in the horizontal first direction, and the discharging device conveys the to-be-detected piece on the optical detection device out of the optical detection device in the horizontal first direction.
Compared with the prior art, the invention has the beneficial effects that:
according to the optical detection equipment provided by the invention, the carrier device and the cover plate device which can move relatively independently and synchronously are combined are arranged, and the cover plate component and the carrier plate component can be overlapped and misplaced at the first position and the second position of the machine table, so that the machine table can be used for lifting and lowering the plate at two ends, the convenience of lifting and lowering the plate is ensured, the requirements of automatic production are met, the waiting time is reduced, and the detection efficiency is effectively improved.
According to the automatic detection system provided by the invention, through the application of the optical detection equipment, automatic feeding, discharging and automatic detection can be realized, the production beat is effectively reduced, and the operation efficiency is effectively improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly explain the drawings needed in the description of the embodiments of the present invention, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the contents of the embodiments of the present invention and these drawings without inventive effort for those skilled in the art.
Fig. 1 is a schematic structural diagram of a feeding state of an optical detection device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a detection state of an optical detection device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a blanking state of an optical detection device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an optical detection device provided by an embodiment of the present invention, in which a cover plate device is omitted;
fig. 5 is a schematic structural diagram of a carrier assembly according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a cover device according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a cover assembly according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an automatic detection system according to an embodiment of the present invention.
Reference numerals:
100-feeding equipment; 200-an optical detection device; 300-blanking equipment; 400-a piece to be detected;
1, a machine table;
2-a workbench;
3-carrier plate assembly; 31-glass carrier plate; 32-carrier plate frames; 33-a support arm;
4-a carrier plate translation driving mechanism; 41-linear drive; 42-carrier guide assembly; 421-carrier rails; 422-carrier plate slider;
a 5-deck assembly; 51-glass cover plate; 52-cover plate frame; 53-connecting plates;
6-a cover plate translation driving mechanism; 61-a power assembly; 611-a servo motor; 612-a right angle speed reducer; 613-a transmission shaft; 62-a transmission assembly; 621-a driving pulley; 622-belt; 623-tensioning wheel; 624-clamp blocks; 625-driven pulley; 63-a guide assembly; 631-a guide rail; 632-sliders;
7-a cover plate lifting driving mechanism; 71-lifting drive; 72-supporting the plate; 73-a plug assembly; 731-plug; 732-plug holes;
8-a compressing mechanism; 81-compressing the driving member; 82-briquetting; 83-pressing blocks; 831-connecting portion; 832-pressure-bearing part;
9-a detection mechanism; 91-a linear light source; 92-line scan camera.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the present invention will be further described by the following detailed description with reference to the accompanying drawings.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
As shown in fig. 1 to 4, the present embodiment further provides an optical inspection apparatus 200, which includes a machine table 1, a carrier device, a cover device, and an inspection mechanism 9, wherein the carrier device and the cover device cooperate to clamp the piece 400 to be inspected, and then the inspection mechanism 9 inspects the piece 400 to be inspected.
The to-be-detected member 400 may be a plate-like member such as a PCB, which needs to be optically detected.
In order to improve the detection efficiency, the carrier device comprises a carrier assembly 3 and a carrier translation driving mechanism 4, wherein the carrier assembly 3 is used for bearing a piece 400 to be detected, the carrier translation driving mechanism 4 is arranged on the machine table 1, and the carrier translation driving mechanism 4 is used for driving the carrier assembly 3 to move along a horizontal first direction; the cover plate device comprises a cover plate assembly 5, a cover plate translation driving mechanism 6 and a cover plate lifting driving mechanism 7, wherein the cover plate translation driving mechanism 6 is arranged on the machine table 1, the cover plate lifting driving mechanism 7 is arranged at the output end of the cover plate translation driving mechanism 6, and the output end of the cover plate lifting driving mechanism 7 is detachably connected with the cover plate assembly 5; when the output end of the cover plate lifting driving mechanism 7 is connected with the cover plate assembly 5, the cover plate translation driving mechanism 6 can drive the cover plate lifting driving mechanism 7 to drive the cover plate assembly 5 to move along the horizontal first direction, and the cover plate lifting driving mechanism 7 can drive the cover plate assembly 5 to lift along the vertical direction so as to be far away from or supported on the carrier plate assembly 3; when the output end of the cover plate lifting driving mechanism 7 is separated from the cover plate assembly 5, the cover plate assembly 5 is supported on the carrier plate assembly 3 and can move along the horizontal first direction along with the carrier plate assembly 3.
It is to be noted that the "horizontal first direction" is parallel to the direction from the upstream to the downstream of the optical detection device 200, i.e., parallel to the direction from the first position to the second position.
In the working process, through the arrangement of the cover plate translation driving mechanism 6 and the cover plate lifting driving mechanism 7, the cover plate assembly 5 can have a first state and a second state, wherein in the first state, the cover plate assembly 5 and the carrier plate assembly 3 are staggered, and as no barrier exists above the carrier plate assembly 3, the automatic feeding and discharging can be realized conveniently, and the feeding and discharging efficiency is improved; in the second state, the cover plate assembly 5 and the carrier plate assembly 3 are overlapped and supported on the carrier plate assembly 3, and then the carrier plate assembly 3 is driven by the carrier plate translation driving mechanism 4 to drive the cover plate assembly 5 to synchronously move, so that the piece 400 to be detected between the cover plate assembly 5 and the carrier plate assembly 3 is ensured to be stable, optical detection is facilitated, and the detection quality is improved. Because the motion power of the cover plate component 5 and the carrier plate component 3 is separately supplied and is not mutually unified, loading and unloading are not needed to wait, and the production efficiency is high.
Compared with the technical scheme that the cover plate translation mechanism 6 is arranged on the carrying platform device in the prior art, the optical detection device provided by the embodiment can realize loading and unloading at the two ends of the horizontal first direction of the optical detection device, and is more compact in structure and smaller in whole machine volume.
Specifically, the cover plate translation driving mechanism 6 can drive the cover plate assembly 5 to move between a first position and a second position on the machine 1, wherein the first position and the second position are respectively located at two ends of the machine 1 along a horizontal first direction, for example, the first position and the second position can be set as limit movement positions of the cover plate assembly 5 and the carrier plate assembly 3 at two ends of the machine 1. Wherein, the cover plate assembly 5 can cover the carrier plate assembly 3 or stagger with the carrier plate assembly 3 when in the first position to perform optical detection or facilitate automatic loading and unloading of the to-be-detected piece 400, and the cover plate assembly 5 can also cover the carrier plate assembly 3 or stagger with the carrier plate assembly 3 when in the second position to perform optical detection or facilitate automatic loading and unloading of the to-be-detected piece 400. By staggered is meant that the cover plate assembly 5 and the carrier plate assembly 3 do not substantially overlap or at least do not partially overlap.
In addition, it should be noted that the first position and the second position can both be used for feeding and discharging, and the feeding and discharging positions depend on the cloth-arranging position of the feeding and discharging machine. The apron device and the support plate device that this embodiment provided can also be applied to other automated inspection production lines, belongs to the mode from top to bottom, has effectively reduced the takt, improves production efficiency.
The detection mechanism 9 comprises a linear light source 91 and a linear scanning camera 92, wherein the linear light source 91 is arranged above the cover plate assembly 5 through a gantry, the linear scanning camera 92 is arranged below the carrier plate assembly 3, and the linear scanning camera 92 is matched with the linear light source 91 to optically detect a piece 400 (which can be a circuit board). Further, the first position and the second position are distributed at two ends of the detecting mechanism 9 along the horizontal first direction, so as to ensure that the detecting mechanism 9 can detect the piece 400 to be detected.
Illustratively, the machine 1 may include a marble table and a base welded from metal members, ensuring the overall stability of the optical inspection apparatus 200.
In order to ensure that the carrier plate assembly 3 can better support the piece 400 to be detected and is matched with the cover plate assembly 5 to better and fully flatten the piece 400 to be detected, the carrier plate device further comprises a workbench 2, the output end of the carrier plate translational driving mechanism 4 is connected with the workbench 2, and the carrier plate assembly 3 is fixed on the workbench 2.
Alternatively, as shown in fig. 4, the carrier plate translational driving mechanism 4 includes a linear driving member 41 and a carrier plate guiding assembly 42, where an output end of the linear driving member 41 is fixedly connected to the table 2, so as to drive the table 2 to drive the carrier plate assembly 3 to move along the horizontal first direction. The carrier guide assembly 42 includes a carrier guide rail 421 and a carrier slider 422, where the carrier guide rail 421 is fixed on the machine 1 along the horizontal first direction, and the carrier slider 422 is slidably matched with the machine and fixedly connected to the workbench 2, so that the workbench 2 moves stably along the horizontal first direction.
Illustratively, the carrier guide assemblies 42 are two groups, and the two groups of carrier guide assemblies 42 are respectively disposed at two sides of the table 2.
In order to fix the cover plate assembly 5 and the carrier plate assembly 3 together, the optical detection device 200 further comprises a pressing mechanism 8, and the pressing mechanism 8 is used for fixedly pressing the carrier plate assembly 3 and the cover plate assembly 5 together so that the carrier plate assembly 3 and the cover plate assembly 5 can synchronously move, and detection by the detection mechanism 9 is facilitated.
Alternatively, as shown in fig. 5 to 7, the pressing mechanism 8 includes a pressing driving member 81, a pressing block 82, and a pressure-bearing block 83, the pressing driving member 81 being provided on the carrier plate assembly 3; the pressing block 82 is provided on the output end of the pressing driving member 81; the pressure-bearing block 83 is provided on the cover plate assembly 5, and when the cover plate assembly 5 is supported on the carrier plate assembly 3, the pressing driving member 81 can drive the pressure block 82 to move downward in the vertical direction and press on the pressure-bearing block 83, so that the cover plate assembly 5 is pressed on the carrier plate assembly 3.
Further preferably, the pressing driving member 81 is also capable of driving the pressing block 82 to rotate in a horizontal plane so that the pressing block 82 can be disposed opposite to the pressure bearing block 83, or so that the pressing block 82 is made to avoid the pressure bearing block 83.
Illustratively, the pressure-bearing block 83 includes a connection portion 831 and a pressure-bearing portion 832, the connection portion 831 is fixed on the cover plate assembly 5, the pressure-bearing portion 832 is disposed in parallel with the cover plate assembly 5, and the pressure-bearing block 82 can be pressed on the pressure-bearing portion 832. Preferably, the pressure-bearing portion 832 extends toward the inside of the cover plate assembly 5, the end of the pressing block 82 extends toward the outside of the carrier plate assembly 3, and the pressing block 82 can be pressed against the pressure-bearing portion 832.
In the working process, the initial state of the pressing block 82 is parallel to the horizontal first direction of the machine table 1, when the cover plate assembly 5 is separated from the output end of the cover plate lifting driving mechanism 7 and is supported on the carrier plate assembly 3, the pressing driving piece 81 firstly drives the pressing block 82 to rotate 90 degrees anticlockwise or clockwise, so that the pressing block 82 corresponds to the pressure-bearing portion 832, and then the pressing driving piece 81 drives the pressing block 82 to move downwards and press on the pressure-bearing portion 832, so that the cover plate assembly 5 is pressed on the carrier plate assembly 3.
Alternatively, the number of the pressing mechanisms 8 may be plural, and the plurality of pressing mechanisms 8 are uniformly arranged on the peripheral side of the carrier plate assembly 3 or the cover plate assembly 5, so that both are uniformly stressed. The number of hold-down mechanisms 8 is illustratively four, arranged at the four corners of the carrier plate assembly 3 or the changing assembly 5.
Alternatively, the pressing driving member 81 may be a rotary lifting cylinder capable of driving the pressing block 82 to rotate in a horizontal plane and driving the pressing block 82 to lift in a vertical direction.
Preferably, the carrier plate assembly 3 comprises a glass carrier plate 31, a carrier plate frame 32 and a supporting arm 33, wherein the carrier plate frame 32 is enclosed on the periphery of the glass carrier plate 31, and the supporting arm 33 is arranged on the carrier plate frame 32. A pressing driving piece 81 in the pressing mechanism 8 is fixed on the supporting arm 33, and the output end of the pressing driving piece 81 is fixedly connected with a pressing block 82.
Illustratively, the support arm 33 may be zig-zag in shape to facilitate placement of the compression drive 81 on the outside of the carrier plate assembly 3.
Optionally, the cover plate lifting driving mechanism 7 comprises a lifting driving member 71, a supporting plate 72 and a plug-in assembly 73, wherein the lifting driving member 71 is arranged on the output end of the cover plate translation driving mechanism 6; the support plate 72 is provided on the output end of the elevation driving member 71; the socket assembly 73 includes a socket 731 and a socket 732, one of the socket 731 and the socket 732 is provided on the support plate 72, and the other is provided on the cover plate assembly 5, and the elevating driving member 71 is capable of driving the support plate 72 to elevate so that the socket 731 and the socket 732 are detachably connected.
In this embodiment, the plugging member 731 is disposed on the supporting plate 72, the plugging hole 732 is disposed on the cover assembly 5, and the lifting driving member 71 drives the supporting plate 72 to lift, so that the plugging member 731 is plugged into the plugging hole 732, and the cover translation driving mechanism 6 can drive the cover lifting driving mechanism 7 to further drive the cover assembly 5 to move along the horizontal first direction; or the plug 731 is lowered to be separated from the plug hole 732, and then the cover plate assembly 5 is pressed on the carrier plate assembly 3 by the pressing mechanism 8, and the carrier plate assembly 3 and the cover plate assembly 5 are driven by the carrier plate translation driving mechanism 4 to translate synchronously along the horizontal first direction.
Preferably, the cover assembly 5 includes a glass cover 51, a cover frame 52 and a connecting plate 53, the cover frames 52 on two sides of the glass cover 51 along the horizontal second direction are provided with the connecting plate 53, one or more plugging holes 732 are provided on the connecting plate 53, and plugs 731 corresponding to the plugging holes 732 are provided on the supporting plate 72.
Optionally, the cover plate translation driving mechanism 6 comprises a power assembly 61 and a guide assembly 63, wherein the power assembly 61 is arranged on the machine table 1; the guide assembly 63 includes a guide rail 631 and a slider 632 in sliding fit, the guide rail 631 is disposed on the machine 1 along a horizontal first direction, the slider 632 is used for installing the cover lifting driving mechanism 7, and the power assembly 61 can drive the slider 632 to drive the cover lifting driving mechanism 7 to move along the guide rail 631.
The cover plate translation driving mechanism 6 further comprises a transmission assembly 62, at least two groups of guide assemblies 63 are respectively arranged on two sides of the cover plate assembly 5 along the horizontal second direction, and the power assembly 61 can drive the sliding blocks 632 in the two groups of guide assemblies 63 to move along the guide rails 631 simultaneously through the transmission assembly 62. In addition, by providing two sets of guide assemblies 63, the cover plate assembly 5 can be prevented from being deviated during the movement along the horizontal first direction, and the detection result can be prevented from being affected.
Alternatively, the power assembly 61 includes a servo motor 611, a right angle reducer 612, and a transmission shaft 613, and the servo motor 611 drives the transmission shaft 613 to rotate through the right angle reducer 612, and then the transmission shaft 613 drives the transmission assembly 62 to move.
Alternatively, the transmission assembly 62 may be a belt transmission assembly, including a driving pulley 621, a belt 622, a tensioning pulley 623, a clamping block 624, and a driven pulley 625, where the driving pulley 621 is connected with a transmission shaft 613 through a key slot, the driven pulley 625 is disposed on the machine 1 through a bracket, the belt 622 is wound on the driving pulley 621 and the driven pulley 625, and the tensioning pulley 623 is used for tensioning the belt 622; the clamping block 624 is fixed on the belt 622, and the clamping block 624 is fixedly connected with the sliding block 632. When the driving pulley 621 is rotated by the driving shaft 613, the clamping block 624 thereon is moved in the horizontal first direction by the belt 622, so that the slider 632 is moved in the horizontal first direction.
Optionally, the transmission assembly 62 may also be a screw transmission assembly, including a screw and a nut, where the nut is fixedly connected with the slider 632, and the power assembly 61 includes a servo motor, and the servo motor may drive the screw to rotate through a gear mechanism, so that the nut drives the slider 632 to move along the horizontal first direction.
Alternatively, the transmission assembly 62 may be a rack and pinion transmission assembly, including a rack and a pinion, where the rack is fixed on the machine 1, and the pinion is fixedly connected to the slider 632 through the connection plate 53, and then is driven by the power assembly 61 to move along the rack. At this time, the power assembly comprises a servo motor and a moving guide rail fixed on the machine table 1, and the servo motor is arranged on the moving guide rail in a sliding manner.
The detection process of the optical detection apparatus 200 of the present embodiment is as follows:
1. initially, the carrier plate assembly 3 is located at a first position of the machine 1, the cover plate lifting driving mechanism 7 jacks up the cover plate assembly 5 at the moment, meanwhile, the cover plate translation driving mechanism 6 drives the cover plate assembly 5 to move to a second position, at the moment, the cover plate assembly 5 and the carrier plate assembly 3 are staggered, and the to-be-detected piece 400 is placed on the carrier plate assembly 3 manually or by a machine;
2. the cover plate translation driving mechanism 6 drives the cover plate assembly 5 to move to the first position, the cover plate lifting driving mechanism 7 drives the cover plate assembly 5 to descend, and when the cover plate assembly 5 is stacked on the carrier plate assembly 3 and presses the piece 400 to be detected, the output end of the lifting driving piece 71 of the cover plate lifting driving mechanism 7 continuously descends to enable the plug-in connector 731 on the support plate 72 to be separated from the plug-in hole 732;
3. the pressing driving member 81 drives the pressing block 82 to rotate 90 degrees counterclockwise or clockwise, and then the pressing driving member 81 drives the pressing block 82 to move downwards and press on the pressure bearing portion 832, so that the cover plate assembly 5 is pressed on the carrier plate assembly 3;
4. the carrier plate translation driving mechanism 4 drives the carrier plate assembly 3 and the cover plate assembly 5 to synchronously move from the first position to the second position, and at this time, the piece 400 to be detected can complete detection through the line scanning camera 92.
5. After the detection is completed, the pressing driving piece 81 drives the pressing block 82 to ascend and rotate by 90 degrees so that the pressing block 82 is separated from the pressure-bearing portion 832 and does not interfere with the pressure-bearing portion 832, the cover plate lifting driving mechanism 7 jacks up the cover plate assembly 5 at the moment, meanwhile, the cover plate translation driving mechanism 6 drives the cover plate assembly 5 to move to the first position, at the moment, the carrier plate assembly 3 and the cover plate assembly 5 are staggered, and the piece 400 to be detected of the carrier plate assembly 3 can be taken out manually or by a machine.
As shown in fig. 8, this embodiment provides an automatic detection system, which includes a feeding device 100, a discharging device 300, and an optical detection device 200, where the feeding device 100 and the discharging device 300 are respectively located at two ends of the optical detection device 200 along the horizontal first direction. Wherein, the feeding device 100 is located upstream of the optical detection device 200, and is used for automatically feeding the optical detection device 200, for example, at the time, the feeding device 100 is docked at the first position of the machine 1; the blanking apparatus 300 is located downstream of the optical inspection apparatus 200, and is configured to automatically blanking the inspected workpiece on the optical inspection apparatus 200, for example, when the blanking apparatus 300 is docked to the second position of the machine 1.
The automatic detection system provided by the embodiment can realize automatic feeding and discharging and optical detection, and is high in operation efficiency.
For easy understanding, taking the to-be-detected piece 400 as a circuit board as an example, the working principle of the automatic detection system provided in this embodiment is as follows:
the movement direction of the workbench 2 in the optical detection equipment 200 is the same as the transmission direction of the circuit board, and after the circuit board is fed on the upstream of the optical detection equipment 200, the circuit board can be directly fed after being detected to move to the downstream of the optical detection equipment 200, so that the production beat is effectively reduced, and the production efficiency is improved. The feeding device 100 includes a first housing, a feeder (for placing a circuit board to be detected) disposed in the first housing, a first manipulator, and a lifting mechanism (for integrally lifting the stacked pieces 400 to be detected). The blanking apparatus 300 includes a second housing, and a receiver (for placing a circuit board after detection) and a second manipulator that are disposed in the second housing. During feeding, the feeding equipment 100 grabs the circuit board in the feeding equipment 100 to the carrier plate assembly 3 through the manipulator, and during discharging, the discharging equipment 300 grabs the detected circuit board to a good product or defective product station in the equipment through the manipulator for storage.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (10)
1. An optical inspection apparatus, comprising:
a machine table (1);
the carrier device comprises a carrier assembly (3) and a carrier translation driving mechanism (4), wherein the carrier assembly (3) is used for bearing a piece (400) to be detected, the carrier translation driving mechanism (4) is arranged on the machine table (1), and the carrier translation driving mechanism (4) is used for driving the carrier assembly (3) to move along a horizontal first direction;
the cover plate device comprises a cover plate assembly (5), a cover plate translation driving mechanism (6) and a cover plate lifting driving mechanism (7), wherein the cover plate translation driving mechanism (6) is arranged on the machine table (1), the cover plate lifting driving mechanism (7) is arranged at the output end of the cover plate translation driving mechanism (6), and the output end of the cover plate lifting driving mechanism (7) is detachably connected with the cover plate assembly (5);
the optical detection device further comprises a detection mechanism (9), when the output end of the cover plate lifting driving mechanism (7) is connected with the cover plate assembly (5), the cover plate translation driving mechanism (6) can drive the cover plate lifting driving mechanism (7) and the cover plate assembly (5) to move between a first position and a second position on the machine table (1) along a horizontal first direction, and the first position and the second position are respectively positioned at two ends of the detection mechanism (9) along the horizontal first direction;
the cover plate assembly (5) can cover the upper part of the carrier plate assembly (3) or can be staggered with the carrier plate assembly (3) along the horizontal first direction in the first position, the cover plate assembly (5) can cover the upper part of the carrier plate assembly (3) or can be staggered with the carrier plate assembly (3) along the horizontal first direction in the second position, and when the cover plate assembly (5) is staggered with the carrier plate assembly (3), a piece (400) to be detected can be placed on the carrier plate assembly (3) or the piece (400) to be detected on the carrier plate assembly (3) can be removed;
when the output end of the cover plate lifting driving mechanism (7) is separated from the cover plate assembly (5), the cover plate assembly (5) is supported on the carrier plate assembly (3) and can move along the horizontal first direction along with the carrier plate assembly (3).
2. The optical detection device according to claim 1, further comprising a pressing mechanism (8), the pressing mechanism (8) being configured to press the carrier plate assembly (3) and the cover plate assembly (5) together; the hold-down mechanism (8) comprises:
a pressing driving piece (81) arranged on the carrier plate assembly (3);
a pressing block (82) arranged at the output end of the pressing driving piece (81);
the pressure-bearing block (83) is arranged on the cover plate assembly (5), when the cover plate assembly (5) is supported on the carrier plate assembly (3), the pressure-bearing driving piece (81) can drive the pressure block (82) to move downwards along the vertical direction and press on the pressure-bearing block (83), so that the cover plate assembly (5) is pressed on the carrier plate assembly (3).
3. The optical detection apparatus according to claim 2, wherein the pressing driving member (81) is further capable of driving the pressing block (82) to rotate in a horizontal plane so that the pressing block (82) can be disposed opposite to the pressure-receiving block (83) or so that the pressing block (82) is prevented from the pressure-receiving block (83).
4. An optical detection apparatus according to claim 3, wherein the pressure-bearing block (83) comprises a connecting portion (831) and a pressure-bearing portion (832), the connecting portion (831) being fixed to the cover plate assembly (5), the pressure-bearing portion (832) being arranged parallel to the cover plate assembly (5), the pressure-bearing block (82) being capable of being pressed against the pressure-bearing portion (832).
5. The optical inspection apparatus according to any one of claims 1 to 4, wherein the cover plate lifting drive mechanism (7) is capable of driving the cover plate assembly (5) to lift in a vertical direction to be away from or supported on the carrier plate assembly (3), the cover plate lifting drive mechanism (7) comprising:
the lifting driving piece (71) is arranged at the output end of the cover plate translation driving mechanism (6);
a support plate (72) provided on an output end of the elevation driving member (71);
plug-in component (73), including plug-in component (731) and spliced eye (732), plug-in component (731) with one of spliced eye (732) set up on backup pad (72), another set up on apron subassembly (5), lift driver (71) can drive backup pad (72) go up and down to make plug-in component (731) with spliced eye (732) separable connection.
6. The optical inspection apparatus according to claim 5, wherein the cover plate assembly (5) includes a glass cover plate (51), a cover plate frame (52) and a connection plate (53), the cover plate frames (52) on both sides of the glass cover plate (51) in the horizontal second direction are each provided with the connection plate (53), one or more of the plugging holes (732) are provided on the connection plate (53), and the plugs (731) provided corresponding to the plugging holes (732) are provided on the support plate (72).
7. Optical detection device according to any one of claims 1-4, characterized in that the cover plate translation driving mechanism (6) comprises:
the power assembly (61) is arranged on the machine table (1);
the guide assembly (63) comprises a guide rail (631) and a sliding block (632) which are in sliding fit, the guide rail (631) is arranged on the machine table (1) along the horizontal first direction, the sliding block (632) is used for installing the cover plate lifting driving mechanism (7), and the power assembly (61) can drive the sliding block (632) to drive the cover plate lifting driving mechanism (7) to move along the guide rail (631).
8. The optical inspection apparatus according to claim 7, wherein the cover plate translation driving mechanism (6) further comprises a transmission assembly (62), at least two sets of guide assemblies (63) are respectively disposed on two sides of the cover plate assembly (5) along the horizontal second direction, and the power assembly (61) can drive the sliders (632) in the two sets of guide assemblies (63) to move along the guide rail (631) simultaneously through the transmission assembly (62).
9. The optical detection device according to claim 8, wherein the power assembly (61) comprises a servo motor (611) and a drive shaft (613), the drive assembly (62) being a belt drive assembly drivingly connected to the drive shaft (613);
alternatively, the power assembly (61) comprises a servo motor (611), and the transmission assembly (62) is a screw transmission assembly;
or, the power assembly (61) comprises a servo motor (611) and a moving guide rail fixed on the machine table (1), the servo motor (611) is slidably arranged on the moving guide rail, and the transmission assembly (62) is a rack transmission assembly.
10. An automatic detection system, characterized by comprising a feeding device (100), a discharging device (300) and an optical detection device according to any one of claims 1-9, wherein the feeding device (100) and the discharging device (300) are respectively positioned at two ends of the optical detection device along the horizontal first direction, the feeding device (100) conveys the piece (400) to be detected to the optical detection device in the horizontal first direction, and the discharging device (300) conveys the piece (400) to be detected on the optical detection device out of the optical detection device in the horizontal first direction.
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