CN216645261U - Eccentric detection machine automation equipment of back drilling - Google Patents
Eccentric detection machine automation equipment of back drilling Download PDFInfo
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- CN216645261U CN216645261U CN202123159164.3U CN202123159164U CN216645261U CN 216645261 U CN216645261 U CN 216645261U CN 202123159164 U CN202123159164 U CN 202123159164U CN 216645261 U CN216645261 U CN 216645261U
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Abstract
The utility model discloses an automatic device of a back drilling hole eccentricity detection machine, which comprises: the Y-axis workbench comprises a Y-axis mechanism and a glass workbench, the glass workbench is provided with a feeding station and a glass covering station, the feeding station is provided with a lower glass plate for bearing a PCB, the lower glass plate can move to the glass covering station under the driving of the Y-axis mechanism, the glass covering station is provided with an upper glass plate for covering the PCB, and a backlight source is arranged below the glass covering station; the X-axis mechanism is arranged above the Y-axis workbench; the Z-axis detection mechanism comprises a Z-axis mechanism integrally installed on the X-axis mechanism and an optical detection device arranged on the Z-axis mechanism, wherein the optical detection device comprises a line scanning camera matched with a telephoto lens, a coaxial light source serving as a main light source and a line light source serving as an auxiliary light source. The utility model has the advantages of high efficiency, high automation degree, long service life, good universality of the optical system and the like.
Description
Technical Field
The utility model relates to the technical field of optical detection, in particular to automation equipment of a back drilling hole eccentricity detection machine.
Background
Printed Circuit Board (PCB) manufacturing typically involves a back drilling process. Back drilling can be considered as a special depth control drill, namely: the front and back of a PCB need to be drilled (the hole drilled on the back is called back drilling for short), which are called primary drilling and secondary drilling (the secondary drilling is also called back drilling), but the drilled hole diameters are different, the secondary drilling diameter is larger, and the primary drilling diameter is smaller. The drilling of the front side and the back side needs to be carried out twice, and whether the secondary drilling of the large hole and the primary drilling of the small hole are concentric becomes the key of the process. Concentricity and deviation between the back drilling hole and the front hole, whether the back drilling hole is blocked by foreign matters or not and whether the back drilling hole is missed are all contents to be checked. Especially, in the current emerging 5G industry circuit board, the process requirement for back drilling is very strict, and basically, products related to the back drilling process need to be fully inspected.
Due to the special structure of the back drilling hole, most of the existing PCB industry adopts a manual microscope detection method to detect the hole deviation of the back drilling hole of the PCB, so that the detection efficiency is low, meanwhile, the detection personnel are easy to fatigue, and the detection efficiency and the accuracy are reduced. At present, hole site detector equipment exists in the market, but for holes with back drilling holes, the similar technology cannot detect the holes.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide automatic equipment of a back drilling hole eccentricity detection machine, which is used for realizing back drilling hole detection with higher efficiency and accuracy.
The technical scheme adopted by the utility model is as follows: an automated backdrilling eccentric inspection machine apparatus, comprising:
the Y-axis workbench comprises a Y-axis mechanism and a glass workbench, the glass workbench is provided with a feeding station and a glass covering station, the feeding station is provided with a lower glass plate for bearing a PCB, the lower glass plate can carry the PCB to move to the glass covering station under the driving of the Y-axis mechanism, the glass covering station is provided with an upper glass plate for covering the PCB, and a backlight source is arranged below the glass covering station;
the X-axis mechanism is arranged above the Y-axis workbench;
z axle detection mechanism, including the integral erection Z axle mechanism in the X axle mechanism with establish optical detection device in the Z axle mechanism, optical detection device includes that the line of collocation telephoto lens sweeps camera, the coaxial light source as the primary light source, the line light source as auxiliary light source.
In a possible implementation manner, the glass covering station is further provided with an upper glass lifting Z shaft, the upper glass plate is mounted on the upper glass lifting Z shaft through an upper glass clamping block and an upper glass supporting block, and the upper glass lifting Z shaft is driven to move upwards or upwards.
In one possible implementation mode, the Y-axis workbench is further provided with a manipulator device for realizing automatic discharging of the PCB.
In a possible implementation manner, the Y-axis workbench is further provided with an encoder for feeding back the movement position in the Y-axis direction.
In a possible implementation manner, the optical detection apparatus further includes a review camera component and a review camera light source.
In a possible implementation manner, the optical detection device further includes a cylinder moving device arranged in the Y direction; the coaxial light source is connected with the cylinder moving device and moves along the Y direction under the action of the cylinder moving device.
In a possible implementation manner, the device further comprises a lower frame and an upper frame, wherein the lower frame supports the Y-axis workbench, the X-axis mechanism and the Y-axis detection mechanism, and the upper frame contains the Y-axis detection mechanism and the X-axis mechanism.
In one possible implementation manner, the Y-axis mechanism includes a Y-axis lead screw module and a Y-axis servo motor driving the Y-axis lead screw module; the lower glass plate is connected to the Y-axis lead screw module; the X-axis mechanism comprises an X-axis mounting seat arranged above the Y-axis workbench in a spanning mode, an X-axis lead screw module arranged on the X-axis mounting seat and an X-axis servo motor for driving the X-axis lead screw module, and the Z-axis mechanism is connected to the X-axis lead screw module; the Z-axis mechanism comprises at least one Z-axis lead screw module and a Z-axis servo motor for driving the Z-axis lead screw module, and the optical detection device is connected to the Z-axis lead screw module.
According to the technical scheme, the embodiment of the utility model has the following advantages:
1) the efficiency is high: the automation of the back drilling hole deviation detection process is realized, the manual work is replaced by equipment, and the detection efficiency is higher.
2) The automation degree is high: design glass workstation, wherein the lid glass station and the material loading station of glass workstation separately set up, conveniently install mechanical hand device, can realize unloading in the automation, degree of automation is high.
3) The service life is high: the separation design of the upper glass and the lower glass of the workbench improves the service life of the workbench.
4) Versatility of optical system: the upper main light is provided with coaxial light and linear light, the light source can be switched independently according to the characteristics of products, and the universality is better.
5) The back drilling rechecking module: furthermore, a rechecking camera component is designed to check whether the detected defects belong to true defects or false defects which are mistakenly reported by the system, so that the comprehensive efficiency of the detection performance is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the embodiments and the drawings used in the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a Y-axis workbench of an automated back-drilling eccentric inspection machine according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an X-axis mechanism of an automated back-drilling eccentric inspection machine provided in an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a Z-axis detection mechanism of an automated back-drilling eccentric detection machine provided in an embodiment of the present invention;
fig. 4 is a schematic diagram of the entire structure of an automated device of an eccentric detection machine for back drilling according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, shall fall within the protection scope of the present invention.
The terms "first," "second," "third," and the like in the description and in the claims, and in the above-described drawings, are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
The present invention will be described in detail with reference to the following examples.
Referring to fig. 1 to 4, an embodiment of the present invention provides an automated apparatus for an eccentric inspection machine of a back drilling hole. In summary, the scheme of the utility model is as follows: the glass worktable is designed on the Y-axis mechanism, a feeding station and a glass covering station are designed, the optical detection device is designed on the Z-axis mechanism, the Z-axis mechanism is integrally installed on the X-axis mechanism, and the X-axis mechanism is arranged above the Y-axis mechanism to realize XY cross linkage, so that the PCB placed on the glass worktable can completely complete scanning detection; in the optical detection device, a line scan camera is matched with a long-distance lens, a coaxial light source is used as a main light source, a line light source is configured as an auxiliary light source, and a backlight light source is designed below a glass workbench to assist an optical system to achieve image acquisition authenticity.
1) Y-axis table:
FIG. 1 is a schematic diagram of a Y-axis table: the Y-axis workbench comprises a Y-axis mechanism 13 and a glass workbench, the glass workbench is divided into a feeding station 11 and a glass covering station 16, a lower glass plate 12 is installed in the feeding station 11, and a PCB can be accurately placed on the lower glass plate 12 manually or by a manipulator during feeding; the PCB and the lower glass plate 12 are conveyed to a cover glass station 16 together under the action of a Y-axis mechanism 13; the glass covering station 16 is composed of an upper glass plate 15, an upper glass clamping block 14, an upper glass supporting block 17 and an upper glass lifting Z shaft 18, wherein the upper glass plate 15 is installed on the upper glass lifting Z shaft 18 through the upper glass clamping block 14 and the upper glass supporting block 17, the upper glass plate 15 is driven downwards or upwards under the action of the upper glass lifting Z shaft 18, the upper glass plate 15 is covered on the PCB and pressed on the lower glass plate 12, and the detection planes of the PCB are guaranteed to be parallel.
The Y-axis mechanism comprises a Y-axis lead screw module and a Y-axis servo motor for driving the Y-axis lead screw module; the lower glass plate 12 is connected to the Y-axis lead screw module.
Optionally, the Y-axis workbench may further be provided with a manipulator device for realizing automatic discharging of the PCB.
Optionally, a Y-axis mechanism of the Y-axis table may further be provided with an encoder for feeding back a movement position in the Y-axis direction, so as to achieve accurate positioning of the movement in the Y-axis direction.
Alternatively, the maximum size of the glass table may be up to 42 inches, for example.
2) An X-axis mechanism:
as shown in FIG. 2, the X-axis mechanism is designed in the direction perpendicular to the Y-axis and above the Y-axis table. The X axis is also positioned by adopting a servo motor and lead screw transmission mode and comprises an X axis mounting seat 22 arranged above the Y axis workbench in a spanning mode, an X axis servo motor 21 arranged on the X axis mounting seat 22 and an X axis lead screw module driven by the X axis servo motor 21. The Z-axis detection mechanism is arranged on the X-axis mechanism and connected to the X-axis lead screw module.
3) Z axle detection mechanism:
as shown in fig. 3, a schematic diagram of an optical Z-axis detection mechanism is shown, which includes a Z-axis mechanism and an optical detection device. The Z-axis mechanism comprises two Z-axis lead screw modules 34 and a Z-axis servo motor 31 for driving the Z-axis lead screw modules 34 through synchronous belts, the optical detection device is connected to the Z-axis lead screw modules 34, and the optical detection device is driven by the Z-axis lead screw modules 34 to synchronously perform lifting positioning movement.
The optical detection device comprises a line scan camera 32 matched with a far-moving lens 33, a coaxial light source 35 as a main light source, and a line light source 36 (namely a side light source) as an auxiliary light source; further, a review camera assembly and review camera light source 30 consisting of a review camera 38 and a review camera lens 39; are all mounted on the Z-axis screw module 34. The Z-axis servo motor 31 is mounted on the X-axis mechanism and moves and scans above the glass table. Furthermore, a backlight source 40 is also arranged and fixedly arranged below the glass covering station of the glass worktable and is arranged parallel to the X axis. In addition, the coaxial light source 35 is connected to the cylinder moving device arranged in the Y direction, and under the requirement of some special products, the cylinder moving device can be utilized to drive the coaxial light source 35 to move away, and only side light (linear light source) is used for scanning, so that the light source has selectivity.
4) The whole structure is as follows:
fig. 4 is a schematic diagram of the entire structure of the automated equipment of the back-drilling eccentricity detector of the present embodiment. Wherein: 41 is a lower frame; 42 is a display and an operation keyboard, 43 is a Y-axis table, 44 is an X-axis mechanism, 45 is a Z-axis mechanism, 46 is an optical detection device, and 47 is an upper frame. The lower frame 41 supports the Y-axis workbench, the X-axis mechanism and the Y-axis detection mechanism, and the upper frame 47 contains the Y-axis detection mechanism and the X-axis mechanism.
In this embodiment, the worktable is designed on the Y-axis mechanism to achieve accurate positioning in the Y direction. The worktable adopts a glass worktable design in consideration of the back drilling process. The Y-axis mechanism adopts servo motor and lead screw transmission, is provided with a grating ruler or other encoder feedback position signal devices, can accurately position the position of the workbench in the Y direction, and when the workbench starts to discharge, the Y-axis servo motor drives the Y-axis lead screw module to convey a lower glass plate bearing a PCB to a discharging position, and the glass workbench is opened through an air cylinder structure of the workbench. Then manually placing the PCB against a positioning block of the workbench, and ensuring that the workbench is closed after personnel leave safely; then complete the scanning of the whole PCB board through X, Y axle linkage mode, and real-time output scanning structure. And manually confirming the authenticity of the defect point after the defect point is positioned by the rechecking camera, and after the scanning is finished, returning the workbench to the material changing position to change the PCB for scanning again and repeating the scanning work.
To sum up, the embodiment of the utility model discloses automation equipment of a back drilling hole eccentricity detection machine. By adopting the scheme, the equipment has the following technical effects:
1) the efficiency is high: the automation of the back drilling hole deviation detection process is realized, the manual work is replaced by equipment, and the detection efficiency is higher.
2) The automation degree is high: design glass workstation, wherein glass workstation's lid glass station and material loading station separately set up, make things convenient for installation manipulator device, can realize unloading in the automation, degree of automation is high.
3) The service life is high: the separation design of the upper glass and the lower glass of the workbench improves the service life of the workbench.
4) Versatility of optical system: the upper main light is provided with coaxial light and linear light, the light source can be switched independently according to the characteristics of products, and the universality is better.
5) The back drilling rechecking module: furthermore, a rechecking camera component is designed to check whether the detected defects belong to true defects or false defects which are mistakenly reported by the system, so that the comprehensive efficiency of the detection performance is improved.
The technical solution of the present invention is explained in detail by the specific embodiments above. In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.
It should be understood that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same. The technical solutions described in the above embodiments can be modified or part of the technical features can be equivalently replaced by those skilled in the art; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. The utility model provides an eccentric check machine automation equipment of back drilling which characterized in that includes:
the Y-axis workbench comprises a Y-axis mechanism and a glass workbench, the glass workbench is provided with a feeding station and a glass covering station, the feeding station is provided with a lower glass plate for bearing a PCB, the lower glass plate can carry the PCB to move to the glass covering station under the driving of the Y-axis mechanism, the glass covering station is provided with an upper glass plate for covering the PCB, and a backlight source is arranged below the glass covering station;
the X-axis mechanism is arranged above the Y-axis workbench;
z axle detection mechanism, including the integral erection Z axle mechanism in the X axle mechanism with establish optical detection device in the Z axle mechanism, optical detection device includes that the line of collocation telephoto lens sweeps camera, the coaxial light source as the primary light source, the line light source as auxiliary light source.
2. The automated back-drilled hole eccentricity detection machine apparatus of claim 1,
the glass covering station is also provided with an upper glass lifting Z shaft, the upper glass plate is arranged on the upper glass lifting Z shaft through an upper glass clamping block and an upper glass supporting block, and the upper glass lifting Z shaft is driven to move upwards or upwards.
3. The automated back-drilled hole eccentricity detection machine apparatus of claim 1,
the Y-axis workbench is also provided with a manipulator device for realizing automatic discharging of the PCB.
4. The automated back-drilled hole eccentricity detection machine apparatus of claim 1,
and the Y-axis workbench is also provided with an encoder for feeding back the motion position in the Y-axis direction.
5. The automated back-drilled hole eccentricity detection machine apparatus of claim 1,
the optical detection device further comprises a rechecking camera component and a rechecking camera light source.
6. The automated back-drilled hole eccentricity detection machine apparatus of claim 1,
the optical detection device also comprises an air cylinder moving device arranged in the Y direction; the coaxial light source is connected with the cylinder moving device and moves along the Y direction under the action of the cylinder moving device.
7. The automated back-drilled hole eccentricity detection machine apparatus of claim 1,
the Y-axis detection mechanism and the X-axis detection mechanism are contained in the upper rack.
8. The automated back-drilled hole eccentricity detection machine apparatus of claim 1,
the Y-axis mechanism comprises a Y-axis lead screw module and a Y-axis servo motor for driving the Y-axis lead screw module; the lower glass plate is connected to the Y-axis lead screw module;
the X-axis mechanism comprises an X-axis mounting seat arranged above the Y-axis workbench in a spanning mode, an X-axis lead screw module arranged on the X-axis mounting seat and an X-axis servo motor for driving the X-axis lead screw module, and the Z-axis mechanism is connected to the X-axis lead screw module;
the Z-axis mechanism comprises at least one Z-axis lead screw module and a Z-axis servo motor for driving the Z-axis lead screw module, and the optical detection device is connected to the Z-axis lead screw module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123159164.3U CN216645261U (en) | 2021-12-15 | 2021-12-15 | Eccentric detection machine automation equipment of back drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123159164.3U CN216645261U (en) | 2021-12-15 | 2021-12-15 | Eccentric detection machine automation equipment of back drilling |
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| Publication Number | Publication Date |
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| CN216645261U true CN216645261U (en) | 2022-05-31 |
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| CN202123159164.3U Active CN216645261U (en) | 2021-12-15 | 2021-12-15 | Eccentric detection machine automation equipment of back drilling |
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- 2021-12-15 CN CN202123159164.3U patent/CN216645261U/en active Active
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