CN209979521U - AOI full-automatic screen defect detection production line - Google Patents
AOI full-automatic screen defect detection production line Download PDFInfo
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- CN209979521U CN209979521U CN201921066066.5U CN201921066066U CN209979521U CN 209979521 U CN209979521 U CN 209979521U CN 201921066066 U CN201921066066 U CN 201921066066U CN 209979521 U CN209979521 U CN 209979521U
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Abstract
The utility model discloses an AOI full-automatic screen defect detection production line, which comprises a feeding machine, a cleaning machine, AOI detection equipment and a blanking machine which are connected in sequence; the automatic material loading and unloading device is characterized in that the feeding machine and the unloading machine are respectively provided with a plastic plate conveying device, and the AOI detection equipment is provided with two manipulator conveying devices and a plurality of visual detection workstations. Compared with the prior art, the utility model provides a full-automatic screen defect of AOI detects production line has realized cell-phone screen automatic feeding, cleanness, AOI defect detection and unloading, and the unloading process can sort the qualified cell-phone screen of detection and the cell-phone screen that detects unqualified, has improved cell-phone screen and has detected the degree of automation of precision, has improved work efficiency by a wide margin.
Description
Technical Field
The utility model relates to a cell-phone screen check out test set technical field, in particular to full-automatic screen defect detection production line of AOI.
Background
The mobile phone screen detection is an important link in the quality management of mobile phone screen production. In the prior art, although an Automatic Optical Inspection (AOI) defect detection device is provided, a manual detection mobile phone screen is replaced, and the detection precision and the working efficiency are improved. However, the AOI detection equipment in the prior art (for example, patent with publication number CN 206696560U) has a simple structure, cannot rapidly load and unload materials, and needs to improve the production efficiency. Therefore, it is necessary to provide a new AOI full-automatic screen defect detection production line, which not only applies an AOI detection device, but also is configured with a feeding machine and a discharging machine, so as to form a production line, facilitate feeding and discharging, and further improve production efficiency.
It is seen that improvements and enhancements to the prior art are needed.
SUMMERY OF THE UTILITY MODEL
In view of the foregoing prior art's weak point, the utility model aims to provide a full-automatic screen defect detection production line of AOI aims at solving the technical problem that the work efficiency that cell-phone screen defect detected among the prior art remains further to improve.
In order to achieve the purpose, the utility model adopts the following technical proposal:
an AOI full-automatic screen defect detection production line comprises a feeding machine, a cleaning machine, AOI detection equipment and a discharging machine which are sequentially connected, wherein the feeding machine comprises a first underframe, and a first plastic disc conveying device and a first portal frame which are arranged on the first underframe; the first plastic disc conveying device is arranged along the X direction, and the first portal frame is arranged along the Y direction; the inlet end of the first plastic tray conveying device is provided with a plastic tray storage area, and the outlet end of the first plastic tray conveying device is provided with a plastic tray recovery area; the first portal frame is provided with a Y-axis moving module along the upper side, an X-axis moving module is arranged on the Y-axis moving module, and a first material moving manipulator is arranged on the X-axis moving module.
Furthermore, in the AOI full-automatic screen defect detection production line, the first material moving manipulator comprises a manipulator mounting plate and an upper cylinder and a lower cylinder which are arranged on the manipulator mounting plate; the piston rod of the upper air cylinder and the lower air cylinder is arranged downwards and is connected with a motor mounting seat, a rotating motor is arranged on the motor mounting seat, and a spindle of the rotating motor is arranged downwards and is connected with a vacuum chuck.
Furthermore, in the AOI full-automatic screen defect detection production line, the AOI detection equipment comprises a third underframe, a four-axis manipulator is arranged at the inlet end of the third underframe, and two mobile phone screen positioning devices are respectively arranged on two sides of the four-axis manipulator; a plurality of visual detection workstations are arranged in the middle of the third underframe, and two detection jigs are respectively arranged on two sides of each visual detection workstation; and two sides of the third underframe are respectively provided with a manipulator carrying device.
Furthermore, in the AOI full-automatic screen defect detection production line, each mobile phone screen positioning device comprises a mounting frame, and a first positioning cylinder and a second positioning cylinder which are horizontally arranged on the mounting frame; the first positioning cylinder is parallel to the X direction, and the second positioning cylinder is parallel to the Y direction.
Furthermore, in the AOI full-automatic screen defect detecting production line, each manipulator carrying device comprises a second portal frame, a feeding manipulator and a discharging manipulator which are arranged on the second portal frame, and a driving device used for the feeding manipulator and the discharging manipulator to move along the Y direction is arranged on the second portal frame.
Furthermore, in the AOI full-automatic screen defect detection production line, each detection jig comprises a base and a jig platform arranged on the base; the jig platform is provided with a detection needle die.
Furthermore, in the AOI full-automatic screen defect detection production line, each visual detection workstation respectively comprises a vertical mounting plate, a vertical moving module arranged on the vertical mounting plate and an industrial camera arranged on the vertical moving module; and a left light source and a right light source are arranged below each industrial camera.
Furthermore, in the AOI full-automatic screen defect detection production line, the blanking machine comprises a fourth bottom frame, a non-defective product conveying belt and a defective product conveying belt which are arranged on the fourth bottom frame, and a third portal frame arranged at the inlet end of the fourth bottom frame; the second plastic disc conveying device and the third plastic disc conveying device are arranged on the fourth underframe; a third material moving manipulator is arranged on the third portal frame; a fourth portal frame is arranged at the position corresponding to the second plastic plate conveying device, a fourth material moving manipulator is arranged on the third portal frame, a fifth portal frame is arranged at the position corresponding to the third plastic plate conveying device, and a fifth material moving manipulator is arranged on the fifth portal frame.
Furthermore, in the AOI full-automatic screen defect detection production line, two inkjet printers are arranged at the outlet end of the third bottom frame.
Has the advantages that: the utility model provides a full-automatic screen defect of AOI detects production line through adopting AOI check out test set, has guaranteed the detection quality and the efficiency of cell-phone screen. Compared with the prior art, the utility model discloses a set gradually material loading machine, cleaning machine, AOI check out test set and unloader, realized carrying out material loading, washing, defect detection and unloading to the cell-phone screen in succession, improved work efficiency by a wide margin, reduced operating personnel's intensity of labour. Set up first material manipulator that moves in the material loading machine, be convenient for shift the cell-phone screen that will wait to detect to the cleaning machine, and set up the cleaning machine and after the cell-phone screen is clean, further improved detection quality.
Drawings
FIG. 1 is the utility model provides a perspective view of the full-automatic screen defect detection production line of AOI.
FIG. 2 is the utility model provides a full-automatic screen defect detection production line's of AOI plan view.
Fig. 3 is the utility model provides an among the full-automatic screen defect detection production line of AOI, the stereogram of material loading machine.
Fig. 4 is the utility model provides an among the full-automatic screen defect detection production line of AOI, the stereogram of another visual angle of material loading machine.
Fig. 5 is the utility model provides an among the full-automatic screen defect detection production line of AOI, first portal frame and the first stereogram that moves material manipulator.
Fig. 6 is the utility model provides an among the full-automatic screen defect detection production line of AOI, the first stereogram of moulding a set of depositing district of moulding a set conveyor.
Fig. 7 is the utility model provides an among the full-automatic screen defect detection production line of AOI, the regional partial enlargement of S in fig. 1.
Fig. 8 is the utility model provides an among the full-automatic screen defect detection production line of AOI, positioner's stereogram.
Fig. 9 is the utility model provides an among the full-automatic screen defect detection production line of AOI, the stereogram of visual inspection workstation.
Fig. 10 is the utility model provides an among the full-automatic screen defect detection production line of AOI, detection tool's stereogram.
Fig. 11 is the utility model provides an among the full-automatic screen defect detection production line of AOI, the stereogram of blanking machine.
Fig. 12 is the utility model provides an among the full-automatic screen defect detection production line of AOI, the stereogram of another visual angle of blanking machine.
Detailed Description
The utility model provides a full-automatic screen defect of AOI detects production line, for making the utility model discloses a purpose, technical scheme and effect are clearer, more clear and definite, and it is right that the following combination embodiment the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Referring to fig. 1 to 12, the present invention provides an AOI full-automatic screen defect detecting production line. The terms "first," "second," and the like, as used herein, are used merely to distinguish one element name from another for convenience of description, and are not used to limit the present invention. As shown in fig. 2, for convenience of illustration, the length direction of the AOI full-automatic screen defect detecting production line is defined as Y direction, and the direction horizontally perpendicular to the Y direction on the horizontal plane is defined as X direction, but in practical application, the specific setting of the coordinate system is not limited.
Referring to fig. 1 to 5, the AOI full-Automatic screen defect detecting production line includes a feeding machine 1, a cleaning machine 2, an AOI (Automatic optical Inspection) detecting device 3, and a blanking machine 4, which are connected in sequence, where the feeding machine 1 includes a first chassis 10, and a first plastic tray conveying device 11 and a first portal frame 51, which are arranged on the first chassis; the first plastic disc conveying device is arranged along the X direction, and the first portal frame is arranged along the Y direction; a plastic disc storage area 111 is arranged at the inlet end of the first plastic disc conveying device, and a plastic disc recovery area 112 is arranged at the outlet end of the first plastic disc conveying device; the first portal frame is provided with a Y-axis moving module 13 along the upper edge, an X-axis moving module 14 is arranged on the Y-axis moving module, and a first material moving manipulator 61 is arranged on the X-axis moving module. During operation, the Y-axis moving module can drive the X-axis moving module to reciprocate along the Y direction, and the Y-axis moving module can drive the first material moving manipulator to reciprocate along the X direction. The X-axis moving module and the Y-axis moving module may be implemented by a rack-and-pinion transmission, a lead screw transmission, or a linear motor, which is not limited herein. The first plastic plate conveying device can be realized in a conveying belt mode. The cleaning machine is used for removing dust on the glass surface of the mobile phone screen, the conveying belt (not visible in the view angle of the attached drawings) is arranged in the cleaning machine, the mobile phone screen is cleaned while being conveyed, and the cleaning machine can be cleaned by ultrasonic waves or other modes, and is not particularly limited here.
As shown in fig. 5, specifically, the first material moving manipulator 6 comprises a manipulator mounting plate 601, and an upper cylinder and a lower cylinder 602 arranged on the manipulator mounting plate; the piston rod of the upper and lower cylinders is arranged downward and connected with a motor mounting seat 603, a rotating motor 604 is arranged on the motor mounting seat, and a main shaft of the rotating motor is arranged downward and connected with a vacuum chuck 605. In practical applications, the vacuum chuck may have various specific forms, and fig. 5 shows a plurality of vacuum suction nozzles for connecting to an external vacuum-pumping device to suck the mobile phone screen in a vacuum suction manner; the rotating motor is used for realizing steering, and the upper motor and the lower motor are used for realizing lifting. For ease of understanding, a cell phone screen 91 is shown in FIG. 5.
Referring to fig. 6, further, the plastic tray storage area of the first plastic tray conveying device may be set as follows: mould a set of storage area department and be provided with two fixed disk cylinders 113 and two jacking cylinders 114 (figure 6 visual angle is near observing a jacking cylinder), will mould a set stack and a bottommost mould a set and separate after the piston rod of two fixed disk cylinders stretches out, two jacking cylinders move upwards again then can mould a set stack and a bottommost and mould a set complete separation to make the bottommost mould the dish and be carried, then two jacking cylinders and two fixed disk cylinders reset. This setting can once only be placed the polylith and mould the dish to further improve work efficiency.
Referring to fig. 1, 2 and 7, further, the AOI inspection apparatus includes a third chassis 30, a four-axis robot 31 is disposed at an inlet end of the third chassis, and a mobile phone screen positioning device 33 is disposed on each of two sides of the four-axis robot; a plurality of visual detection workstations 34 are arranged in the middle of the third underframe, and two detection jigs 38 are respectively arranged on two sides of each visual detection workstation; and two sides of the third underframe are respectively provided with a manipulator carrying device. As shown in the drawings, a total of 4 visual inspection workstations 4 are preferably provided, and correspondingly, a total of 8 inspection tools 38 are provided. Above-mentioned four-axis manipulator itself is prior art, and its structure is not repeated herein, and during the in-service use, the tip of above-mentioned four-axis manipulator is provided with a vacuum chuck 311 for adsorb the cell-phone screen.
As shown in fig. 8, each mobile phone screen positioning device 33 comprises a mounting frame 330, and a first positioning cylinder 331 and a second positioning cylinder 332 horizontally arranged on the mounting frame; the first positioning cylinder is parallel to the X direction, and the second positioning cylinder is parallel to the Y direction. In practical use, the end parts of the piston rods of the first positioning cylinder and the second positioning cylinder are respectively provided with a positioning plate 339. The piston rods of the first positioning cylinder and the second positioning cylinder extend out to play a role in adjusting the position of the mobile phone screen. The figures only show one positioning device, since the two positioning devices are symmetrically arranged.
As shown in fig. 1, 2 and 7, further, each robot handling device includes a second portal frame 52, and a feeding robot 621 and a discharging robot 622 disposed on the second portal frame, and the second portal frame is provided with a driving device for driving the feeding robot and the discharging robot to move along the Y direction; the driving device may be implemented by a linear motor, and the like, and is not limited in detail herein. Fig. 2 and fig. 7 only schematically indicate the positions of the feeding manipulator 621 and the discharging manipulator 622 on the second gantry, and the specific structure may adopt the same (or similar) implementation manner as that of the first material moving manipulator, and details are not repeated here. In practical application, each feeding manipulator can be provided with an industrial camera 6211, so that the feeding manipulators can fly to shoot the mark point position of the mobile phone screen in the moving process, and the X-axis position and the rotation angle of the mobile phone screen to be placed on the corresponding jig can be further calculated conveniently.
As shown in fig. 10, further, each of the inspection jigs 38 includes a base 380 and a jig platform 381 disposed on the base; the jig platform is provided with a detection needle die 383. In practical applications, the detection pin mold is electrically connected to the PG test box 389 (or "PG device"), and is configured to illuminate a mobile phone screen to be detected, so that the visual detection workstation further detects the color (e.g., white screen, gray screen, white screen, red screen, green screen, yellow screen, etc.), color difference, angle, etc. of the screen. For ease of understanding, a cell phone screen is schematically depicted in fig. 10. In practical application, each detection jig can move along the X direction in a linear motor (not shown in the figure) manner, that is, when detection is needed, the detection jig moves to a corresponding visual detection workstation along the X direction, and then moves out of the visual detection workstation after detection is finished.
Referring to fig. 9, further, each of the vision inspection workstations includes a vertical mounting plate 340, a vertical moving module 341 disposed on the vertical mounting plate, and an industrial camera 342 disposed on the vertical moving module; a left light source 343 and a right light source 344 are disposed below each industrial camera. The industrial camera comprises a camera body and a camera lens which is arranged downwards vertically. The vertical moving module is used for driving the industrial camera to move up and down, and is preferably implemented by a linear motor (but not limited thereto), and a motor 3411 is schematically illustrated in fig. 9.
Referring to fig. 11 and 12, further, the blanking machine includes a fourth bottom frame 40, a non-defective product conveyer 411 and a defective product conveyer 412 disposed on the fourth bottom frame, and a third portal 53 disposed at an inlet end of the fourth bottom frame; a second plastic tray conveying device 42 and a third plastic tray conveying device 43 which are arranged on the fourth chassis; a third material moving manipulator 63 is arranged on the third portal frame; a fourth portal frame 54 is arranged at the position corresponding to the second plastic plate conveying device, a fourth material moving manipulator 64 is arranged on the third portal frame, a fifth portal frame 55 is arranged at the position corresponding to the third plastic plate conveying device, and a fifth material moving manipulator 64 is arranged on the fifth portal frame. The third material moving manipulator, the fourth material moving manipulator and the fifth material moving manipulator can adopt the same structure as the first material moving manipulator, so that the specific structure of the material moving manipulator is not repeatedly drawn. The third portal frame, the fourth portal frame and the fifth portal frame can respectively drive the third material moving manipulator, the fourth material moving manipulator and the fifth material moving manipulator to move along a straight line by adopting the modes of gear-tooth-gear transmission, linear motors and the like. The second plastic tray conveying device and the third conveying device can be realized in a conveying belt mode.
Furthermore, two code spraying machines (shown in the attached figures) are arranged at the outlet end of the third chassis and used for spraying codes to unqualified detected inferior products for marking.
For the convenience of understanding, the following brief description is made of the workflow of the AOI full-automatic screen defect detection production line:
(1) the plastic tray provided with the mobile phone screen to be detected is placed in a plastic tray placing area of the feeding machine 1, the first plastic tray conveying device 11 conveys the plastic tray to the position below a first material moving mechanical arm 61 of the feeding machine, and the first material moving mechanical arm 61 transfers the mobile phone screen to the cleaning machine. In practical application, after all mobile phone screens in the plastic trays are transferred, the empty plastic trays are continuously sent to a plastic tray recovery area.
(2) After the mobile phone screen reaches the outlet end of the cleaning machine 2, the four-axis manipulator 31 of the AOI detection equipment sucks the mobile phone screen, and the mobile phone screen is sequentially placed on the two positioning devices 33; two feeding manipulators 621 of the AOI detection apparatus sequentially transfer the mobile phone screens on the positioning devices on the same side to the four detection jigs on the same side.
(3) Each visual detection workstation 34 sequentially detects the mobile phone screens on the two corresponding detection jigs; after the mobile phone screen detection is finished, the mobile phone screen is transferred to the outlet end of the AOI detection device by the blanking manipulator 622 on the same side; and if the mobile phone screen is unqualified in detection, spraying codes on the mobile phone screen through an ink-jet printer.
(4) The third material moving manipulator 63 of the blanking machine 4 transfers the mobile phone screen qualified for detection to the good product conveyer 411, and transfers the mobile phone screen unqualified for detection to the defective product conveyer 412.
(5) The fourth material transferring manipulator 64 of the blanking machine 4 transfers the mobile phone screen on the good product conveyer belt to the plastic tray on the second plastic tray device 42, and the fifth material transferring manipulator 65 transfers the mobile phone screen on the defective product conveyer belt to the plastic tray on the third plastic tray device 43. In practical application, the plastic trays on the second plastic tray device 42 are filled with good products (qualified mobile phone screens), and then are further conveyed to the plastic tray recovery area 422 of the second plastic tray device, so that the plastic trays can be conveniently removed in the next process; the plastic trays on the third plastic tray device 43 are filled with defective products (mobile phone screens that are not detected) and then are further conveyed to a plastic tray recycling area 432 of the third plastic tray device, so that the plastic trays can be conveniently removed in the next process.
According to the above analysis, the utility model provides a full-automatic screen defect detection production line of AOI not only is through adopting AOI check out test set, has guaranteed the detection quality of cell-phone screen, compares prior art, the utility model discloses a set gradually material loading machine, cleaning machine, AOI check out test set and unloader, realized carrying out material loading, washing, defect detection and unloading to the cell-phone screen in succession, improved work efficiency by a wide margin, reduced operating personnel's intensity of labour. Set up first material manipulator that moves in the material loading machine, be convenient for shift the cell-phone screen that will wait to detect to the cleaning machine, set up the cleaning machine and after the cell-phone screen is clean, further ensure subsequent defect detection's precision.
It is understood that equivalent substitutions or changes (for example, a four-axis manipulator is changed to a five-axis manipulator) can be made according to the technical solution of the present invention and the inventive concept thereof by those skilled in the art, and all of these changes or substitutions shall fall within the protection scope of the present invention.
Claims (9)
1. An AOI full-automatic screen defect detection production line comprises a feeding machine, a cleaning machine, AOI detection equipment and a discharging machine which are sequentially connected, and is characterized in that the feeding machine comprises a first underframe, and a first plastic disc conveying device and a first portal frame which are arranged on the first underframe; the first plastic disc conveying device is arranged along the X direction, and the first portal frame is arranged along the Y direction; the inlet end of the first plastic tray conveying device is provided with a plastic tray storage area, and the outlet end of the first plastic tray conveying device is provided with a plastic tray recovery area; the first portal frame is provided with a Y-axis moving module along the upper side, an X-axis moving module is arranged on the Y-axis moving module, and a first material moving manipulator is arranged on the X-axis moving module.
2. The AOI full-automatic screen defect detection production line according to claim 1, wherein the first material moving manipulator comprises a manipulator mounting plate, and an upper cylinder and a lower cylinder which are arranged on the manipulator mounting plate; the piston rod of the upper air cylinder and the lower air cylinder is arranged downwards and is connected with a motor mounting seat, a rotating motor is arranged on the motor mounting seat, and a spindle of the rotating motor is arranged downwards and is connected with a vacuum chuck.
3. The AOI full-automatic screen defect detection production line according to claim 1, wherein the AOI detection equipment comprises a third chassis, a four-axis manipulator is arranged at the inlet end of the third chassis, and a mobile phone screen positioning device is respectively arranged on two sides of the four-axis manipulator; a plurality of visual detection workstations are arranged in the middle of the third underframe, and two detection jigs are respectively arranged on two sides of each visual detection workstation; and two sides of the third underframe are respectively provided with a manipulator carrying device.
4. The AOI full-automatic screen defect detection production line according to claim 3, wherein each mobile phone screen positioning device comprises a mounting rack, a first positioning cylinder and a second positioning cylinder which are horizontally arranged on the mounting rack; the first positioning cylinder is parallel to the X direction, and the second positioning cylinder is parallel to the Y direction.
5. The AOI full-automatic screen defect detecting production line according to claim 3, wherein each manipulator handling device comprises a second portal frame, and a feeding manipulator and a discharging manipulator arranged on the second portal frame, and the second portal frame is provided with a driving device for the feeding manipulator and the discharging manipulator to move along the Y direction.
6. The AOI full-automatic screen defect detection production line according to claim 3, wherein each detection jig comprises a base and a jig platform arranged on the base; the jig platform is provided with a detection needle die.
7. The AOI full-automatic screen defect detecting production line according to claim 3, wherein each vision detecting workstation comprises a vertical mounting plate, a vertical moving module arranged on the vertical mounting plate, and an industrial camera arranged on the vertical moving module; and a left light source and a right light source are arranged below each industrial camera.
8. The AOI full-automatic screen defect detection production line according to claim 1, wherein the blanking machine comprises a fourth bottom frame, a non-defective conveyor belt and a defective conveyor belt which are arranged on the fourth bottom frame, and a third portal frame arranged at the inlet end of the fourth bottom frame; the second plastic disc conveying device and the third plastic disc conveying device are arranged on the fourth underframe; a third material moving manipulator is arranged on the third portal frame; a fourth portal frame is arranged at the position corresponding to the second plastic plate conveying device, a fourth material moving manipulator is arranged on the third portal frame, a fifth portal frame is arranged at the position corresponding to the third plastic plate conveying device, and a fifth material moving manipulator is arranged on the fifth portal frame.
9. The AOI full-automatic screen defect detecting production line according to claim 8, wherein the outlet end of the third chassis is provided with two inkjet printers.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921066066.5U CN209979521U (en) | 2019-07-09 | 2019-07-09 | AOI full-automatic screen defect detection production line |
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| CN201921066066.5U CN209979521U (en) | 2019-07-09 | 2019-07-09 | AOI full-automatic screen defect detection production line |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110333249A (en) * | 2019-07-09 | 2019-10-15 | 苏州市全力自动化科技有限公司 | A kind of full-automatic screen defects detection production line of AOI and its production technology |
| CN111312131A (en) * | 2020-03-13 | 2020-06-19 | 苏州精濑光电有限公司 | Screen detection device |
| CN112285129A (en) * | 2020-12-30 | 2021-01-29 | 宁波丞达精机股份有限公司 | AOI optical test machine position motion module |
| CN112499199A (en) * | 2020-11-11 | 2021-03-16 | 深圳双十科技有限公司 | Operation method and structure of SIP (Session initiation protocol) feeding mechanism |
| CN112974291A (en) * | 2021-01-20 | 2021-06-18 | 盐城维信电子有限公司 | Continuous automatic detection equipment for assembled flexible board and use method thereof |
-
2019
- 2019-07-09 CN CN201921066066.5U patent/CN209979521U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110333249A (en) * | 2019-07-09 | 2019-10-15 | 苏州市全力自动化科技有限公司 | A kind of full-automatic screen defects detection production line of AOI and its production technology |
| CN111312131A (en) * | 2020-03-13 | 2020-06-19 | 苏州精濑光电有限公司 | Screen detection device |
| CN112499199A (en) * | 2020-11-11 | 2021-03-16 | 深圳双十科技有限公司 | Operation method and structure of SIP (Session initiation protocol) feeding mechanism |
| CN112285129A (en) * | 2020-12-30 | 2021-01-29 | 宁波丞达精机股份有限公司 | AOI optical test machine position motion module |
| CN112974291A (en) * | 2021-01-20 | 2021-06-18 | 盐城维信电子有限公司 | Continuous automatic detection equipment for assembled flexible board and use method thereof |
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