CN216414691U

CN216414691U - Positioning device and PCB transfer device

Info

Publication number: CN216414691U
Application number: CN202122323699.3U
Authority: CN
Inventors: 林云峰; 孙畅; 刘龙生
Original assignee: New Career Guangzhou Electronics Co ltd
Current assignee: New Career Guangzhou Electronics Co ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-04-29
Anticipated expiration: 2031-09-24

Abstract

The utility model relates to a positioning device and a PCB (printed Circuit Board) transferring device, wherein the positioning device comprises a positioning main body, a first Hall sensor, a second Hall sensor and a detection assembly; the first Hall sensor and the second Hall sensor are arranged at the upper end of the positioning main body at intervals up and down; the upper end of the detection assembly is embedded in the positioning main body, the lower end of the detection assembly extends downwards towards the lower end of the positioning main body, the lower end of the detection assembly is blocked or can move upwards when being jacked, the lower end of the detection assembly is not blocked, the upper end of the detection assembly is located below the first Hall sensor and the second Hall sensor, and the first Hall sensor and the second Hall sensor can be sequentially triggered when the detection assembly moves upwards. According to the utility model, the PCB adsorption position is accurately judged by matching the sensing probe of the PCB positioning device with the positioning hole of the PCB; when the PCB is placed on the jig by the PCB transferring device, the accurate placing position is realized through the sensing probe and the positioning component on the jig. The problem of very high rejection rate when PCB is difficult to fix a position, transports is solved.

Description

Positioning device and PCB transfer device

Technical Field

The utility model belongs to a PCB material taking technology, and particularly relates to a positioning device and a PCB transferring device.

Background

Pcb (printed Circuit board), which is called printed Circuit board in chinese, is an important electronic component, is a support for electronic components, and is a carrier for electrical interconnection of electronic components. It is called a "printed" circuit board because it is made using electronic printing. A Flexible Printed Circuit (FPC) is a kind of PCB, and is a Flexible Printed Circuit board with high reliability and excellent performance, which is manufactured by using polyimide or polyester film as a base material. The high-density light-weight LED lamp has the characteristics of high wiring density, light weight, thin thickness and good bending property. In the processing process of the PCB, the PCB needs to be taken and placed, namely the PCB on the assembly line is placed into the storage module. Adopt manual operation to put into the storage module with PCB on the assembly line in, not only staff's intensity of labour is high, the cost of labor is high, get and put the material inefficiency, and PCB receives manual operation's influence easily moreover and appears the fish tail or damage.

CN202021190033.4 discloses a PCB suction means, can absorb the PCB that is located on the assembly line through absorbing the subassembly, can treat through push-and-pull subassembly and place the tray and carry out the push-and-pull, can place the PCB on the assembly line on treating the tray through the combination of the motion of absorbing the subassembly and the motion of push-and-pull subassembly. CN201821256891.7 discloses a PCB material taking mechanism, which comprises a frame, wherein the frame comprises a top plate, a bottom plate and supporting tubes, the four supporting tubes penetrate through guide holes arranged on a substrate, a first cylinder mounting frame and a first cylinder are fixed above the substrate, a second cylinder is fixed below the substrate and connected with a third cylinder, the lower end of the third cylinder is connected with a rotary cylinder, the rotary cylinder is connected with a rotary assembly, the rotary assembly is connected with a sucker, and suction nozzles are arranged below the sucker; the bottom plate is of an annular structure, the suckers penetrate through the bottom plate, and suction nozzles are further arranged at the four corners of the bottom plate and are connected with the first air cylinders. In the scheme, the problems that the accuracy of the adsorption position is low in the PCB adsorption process and the accuracy is low when the PCB is transferred to the target position after adsorption are not solved, and the high rejection rate is generated in the whole process.

Furthermore, if the PCB material taking mechanism directly adopts the positioning camera to directly position the PCB adsorption position and the target position for PCB transfer, the following problems are inevitable: 1. the accuracy of the positioning camera for acquiring the PCB adsorption position and the target position transferred by the PCB depends on a visual positioning system of the positioning camera, so that the positioning camera has a certain error in positioning the PCB adsorption position and the target position; 2. errors can exist in each mechanical action executed by the PCB material taking mechanism in the whole sucking and transferring process, and when the PCB is adsorbed, the errors exist in the action executed by the PCB material taking mechanism close to the PCB and the action executed by the PCB adsorbed by a sucker of the PCB material taking mechanism; when the PCB picking mechanism is adsorbed and transferred, the PCB picking mechanism is far away from the action executed by the adsorption position, and the PCB picking mechanism is close to the target position and has errors in the action executed when the PCB is placed. The problems can be independently or superposedly influenced on the suction and transfer processes, and the suction and transfer accuracy of the PCB is finally reduced. Compared with a common PCB, the FPC is softer and thinner, so that the positioning, sucking and transferring difficulties are higher; when the positioning camera is directly used for positioning, the FPC is influenced by the positioning error and the executing mechanical action error.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems of lower accuracy of the adsorption position and lower accuracy when the PCB is transferred to the target position after adsorption in the prior art; and when the positioning camera is directly adopted for positioning, the positioning error and the error of executing mechanical action can not be avoided.

The embodiment of the utility model provides a PCB positioning device, which comprises a positioning main body, a first Hall sensor, a second Hall sensor and a detection assembly, wherein the first Hall sensor is arranged on the positioning main body; the first Hall sensor and the second Hall sensor are arranged at the upper end of the positioning main body at intervals up and down; the upper end of the detection assembly is embedded in the positioning main body, the lower end of the detection assembly extends downwards towards the lower end of the positioning main body, the lower end of the detection assembly is blocked or can be enabled to move upwards when being jacked up, the lower end of the detection assembly is not blocked, the upper end of the detection assembly is located below the first Hall sensor and the second Hall sensor, and the first Hall sensor and the second Hall sensor can be sequentially triggered when the detection assembly moves upwards.

Preferably, the detection assembly comprises a magnetic component and a detection component which are connected with each other, the magnetic component is located at the upper end of the detection assembly, when the detection component is not blocked, the lower end of the detection component extends downwards towards the lower end of the positioning main body, when the lower end of the detection component is blocked or jacked up, the detection assembly moves upwards, and the magnetic component can sequentially trigger the first hall sensor and the second hall sensor.

Preferably, the magnetic component is a magnet, the detection component is a sensing probe, and the magnet is embedded in the top of the sensing probe.

Preferably, the location main part lower extreme is provided with the guiding hole that the opening is down, the guiding hole by location main part lower extreme court the location main part upper end extends, it establishes to inlay to survey the subassembly upper end in the guiding hole, when surveying the subassembly and not blockking, survey the subassembly lower extreme and stretch out downwards the guiding hole, first hall sensor, second hall sensor set up in guiding hole one side.

Preferably, the middle part of the detection assembly is provided with a limiting table protruding along the radial direction, the limiting table is located between the upper end of the detection assembly and the lower end of the detection assembly, a spring and a pressing plate are arranged in the guide hole, the limiting table is located below the pressing plate, the spring is sleeved on the outer side of the upper end of the detection assembly, the spring is limited between the pressing plate and the limiting table, the outer side of the pressing plate is fixedly connected with the guide hole, a penetrating part penetrating through the upper surface and the lower surface of the pressing plate is arranged in the middle of the pressing plate, the penetrating part can be sleeved on the upper end of the detection assembly, and when the detection assembly moves upwards, the detection assembly can slide upwards in the penetrating part.

Preferably, the inner wall of the guide hole is provided with an internal thread, and the height of the upper end and the lower end of the internal thread is greater than that of the upper end and the lower end of the pressing plate; the periphery of the pressing plate is provided with an external thread which can be matched with the internal thread, and the external thread extends from the upper end of the pressing plate to the lower end of the pressing plate.

Preferably, a display lamp is further arranged on the positioning device main body, and the display lamp can display various colors; the display lamp displays a first color when the first Hall sensor is triggered; the display lamp displays a second color when the second Hall sensor is triggered; when the lower end of the detection assembly is not blocked, the display lamp displays a third color; the first color, the second color, and the third color are all different colors.

In another embodiment of the present invention, a PCB transfer device includes the above-mentioned PCB positioning device, a transfer body and a vacuum adsorption assembly, wherein the positioning device and the vacuum adsorption assembly are both fixed on the transfer body, the detection assembly and the vacuum adsorption assembly both extend downward relative to the transfer body, and the height of the downward extension of the detection assembly relative to the transfer body is greater than the height of the downward extension of the vacuum adsorption assembly relative to the transfer body; the detection assembly moves upwards until the bottom of the detection assembly is flush with the bottom of the adsorption assembly, and the first Hall sensor is triggered.

Preferably, the PCB transferring device further comprises a jig, the jig is provided with a positioning component protruding upwards, the transferring main body can move the positioning device to be matched with the positioning component, and when the positioning device is matched with the positioning component, the positioning component jacks up the lower end of the detecting component, so that the detecting component moves upwards and triggers the second hall sensor.

Preferably, when the lower end of the detection assembly is not blocked or jacked, the height difference between the second hall sensor and the top of the detection assembly is adapted to the height of the positioning component, and the height difference between the bottom of the positioning body and the transfer body is adapted to the height difference between the bottom of the vacuum adsorption assembly and the transfer body.

The PCB positioning device provided by the utility model realizes the judgment of whether the PCB is accurately adsorbed or not by matching the sensing probe of the positioning device with the positioning hole of the PCB; when the PCB is placed on the jig by the PCB transferring device, the accurate placing position is realized through the sensing probe and the positioning component on the jig. The error caused by directly adopting a positioning camera for positioning is solved; and the problem that the FPC is difficult to position and has high rejection rate during transfer is solved, and the device is more suitable for sucking and transferring the FPC.

Drawings

The foregoing and other objects, features and advantages of the utility model will be apparent from the following more particular description of preferred embodiments of the utility model, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intended to be drawn to scale in actual dimensions, emphasis instead being placed upon illustrating the principles of the utility model.

Fig. 1 is a schematic structural diagram of a PCB transfer device according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a positioning body according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a misalignment guide hole of a probe assembly according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a probe assembly aligned with a guide hole according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of an alignment positioning component of a probe assembly according to an embodiment of the present invention.

In the figure: the device comprises a positioning main body 1, a vacuum adsorption component 2, a transferring main body 3, a printed circuit board 4, a positioning hole 5, a jig 6 and a positioning component 7; the device comprises a first Hall sensor 11, a second Hall sensor 12, a magnetic component 13, a spring 14, a pressure plate 15, a limit table 16, a detection component 17, a display lamp 18, an external thread 19 and a process groove 20.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element and be integral therewith, or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Hereinafter, the term "printed circuit board" is synonymous with PCB; the FPC is a "flexible circuit board", which is one kind of PCB. Aiming at the problems of lower accuracy of the adsorption position and lower accuracy when the printed circuit board is transferred to the target position after adsorption in the prior art; and when the positioning camera is directly adopted for positioning, the positioning error and the error of executing mechanical action can not be avoided.

The embodiment of the utility model provides a PCB positioning device, which comprises a positioning main body 1, a first Hall sensor 11, a second Hall sensor 12 and a detection assembly, wherein the first Hall sensor 11 is arranged on the positioning main body; the first Hall sensor 11 and the second Hall sensor 12 are arranged at the upper end of the positioning main body 1 at intervals up and down; the upper end of the detection assembly is embedded in the positioning main body 1, the lower end of the detection assembly extends downwards towards the lower end of the positioning main body 1, the lower end of the detection assembly is blocked or can move upwards when being jacked, the lower end of the detection assembly is not blocked, the upper end of the detection assembly is located below the first Hall sensor 11 and the second Hall sensor 12, and the first Hall sensor 11 and the second Hall sensor 12 can be sequentially triggered when the detection assembly moves upwards. The upper, lower, high, low, transverse and longitudinal directions mentioned in this application are all referred to with the lower end of the probe assembly facing downward when the positioning device is in use. The lower end of the detection component extends downwards towards the lower end of the positioning main body 1, so that the lower end of the detection component can be understandably detected to extend towards the lower end of the positioning main body 1 when not blocked. Generally, the second hall sensor 12 is higher than the first hall sensor 11, the first hall sensor 11 is triggered when the detection component moves upwards to one side of the first hall sensor 11, and the second hall sensor 12 is triggered when the detection component moves upwards to one side of the second hall sensor 12.

Referring to fig. 1 to 5, in use, a general PCB positioning apparatus is applied to a PCB transferring apparatus, the PCB positioning apparatus and the vacuum absorption assembly 2 are disposed on the PCB transferring apparatus, and a printed circuit board 4 to be transferred is provided with a positioning hole 5 matched with the PCB positioning apparatus. When the transfer main body 3 of the PCB transfer device is close to the printed circuit board 4, the vacuum adsorption component 2 vacuumizes and adsorbs the printed circuit board 4, if the detection component is not accurately inserted into the positioning hole 5 on the printed circuit board 4, the first Hall sensor 11 is triggered, the vacuum adsorption component 2 recovers air pressure, the PCB transfer device is separated from the printed circuit board 4, the printed circuit board 4 is placed back to the original position, and the PCB transfer device performs positioning and adsorption operation again after the printed circuit board 4 is placed back to the original position, so that the problem that the printed circuit board 4 generates a high rejection rate during transfer is avoided; if the lower end of the detection assembly is accurately inserted into the positioning hole 5 in the printed circuit board 4, the lower end of the detection assembly is not blocked, and the first Hall sensor 11 is not triggered, so that the printed circuit board 4 is accurately adsorbed and can be transferred. When the transferring device transfers the printed circuit board 4 to the jig 6, the jig 6 is provided with a positioning component 7 corresponding to the transferring device, the lower end of the detection component can be jacked up after the positioning component 7 on the jig 6 is aligned and matched with the lower end of the detection component, the upper end of the detection component rises along with the detection component to trigger the second Hall sensor 12, so that the transferring position of the printed circuit board 4 can be known to be accurate, the vacuum adsorption component 2 releases the adsorption of the printed circuit board 4, and the printed circuit board 4 is correctly placed on the jig 6. The correct absorption and transfer of the printed circuit board 4 can be completed through the above arrangement. In the above process, in order to improve the absorption and transfer efficiency of the PCB transfer device, a positioning camera may be added, the positioning camera acquires a relatively accurate absorption position and a target position and guides the PCB transfer device to move to the absorption position and the target position, and the PCB positioning device may correct and further position the absorption position and the target position acquired by the positioning camera. Through the mutual cooperation between the positioning camera and the PCB positioning device, the PCB transferring device realizes higher absorption and transferring efficiency

Referring to fig. 2, in a preferred embodiment, the detection assembly includes a magnetic component 13 and a detection component 17 that are connected to each other, the magnetic component 13 is located at an upper end of the detection assembly, when the detection component 17 is not blocked, a lower end of the detection component 17 extends downward toward a lower end of the positioning body 1, and when the lower end of the detection component 17 is blocked or jacked up, the detection assembly moves upward, and the magnetic component 13 can sequentially trigger the first hall sensor 11 and the second hall sensor 12. Further, the magnetic component 13 is a magnet, the detection component 17 is a sensing probe, and the magnet is embedded in the top of the sensing probe. The detection part 17 is generally a cylindrical sensing probe, and the positioning device can be designed to be more miniaturized by embedding a magnet at the top of the sensing probe, so that the positioning device is more beneficial to application.

Referring to fig. 2, in a preferred embodiment, a guide hole with a downward opening is formed in the lower end of the positioning main body 1, the guide hole extends from the lower end of the positioning main body 1 to the upper end of the positioning main body 1, the upper end of the detection assembly is embedded in the guide hole, when the detection assembly is not blocked, the lower end of the detection assembly extends downward out of the guide hole, and the first hall sensor 11 and the second hall sensor 12 are disposed on one side of the guide hole. The first hall sensor 11 and the second hall sensor 12 are arranged on one side of the guide hole, and the first hall sensor 11 and the second hall sensor 12 can be completely embedded in the main body 1 and located on one side of the guide hole, or the first hall sensor 11 and the second hall sensor 12 are partially embedded in the main body 1 and partially exposed in the guide hole. Through the guiding hole setting for survey the subassembly and can inlay well and establish in location main part 1, and follow the direction up-and-down motion of guiding hole, more be favorable to surveying the subassembly and fix a position accurately.

Referring to fig. 2, in a preferred embodiment, a limiting table 16 protruding in a radial direction is disposed in the middle of the detection assembly, the limiting table 16 is located between the upper end of the detection assembly and the lower end of the detection assembly, a spring 14 and a pressing plate 15 are disposed in the guide hole, the limiting table 16 is located below the pressing plate 15, the spring 14 is sleeved on the outer side of the upper end of the detection assembly, the spring 14 is limited between the pressing plate 15 and the limiting table 16, the outer side of the pressing plate 15 is fixedly connected with the guide hole, a penetrating portion penetrating through the upper surface and the lower surface of the pressing plate 15 is disposed in the middle of the pressing plate 15, the penetrating portion can be penetrated through the upper end of the detection assembly, and when the detection assembly moves upward, the detection assembly can slide upward in the penetrating portion. Typically, the restraint stand 16 is part of a probe assembly, the restraint stand 16 and the probe assembly being integrally formed; the lower end of the guide hole is a cylindrical guide hole, and the lower end of the guide hole is positioned below the limiting table 16 and has a diameter smaller than that of the limiting table 16. When detecting the subassembly lower extreme and receiving to block or by jack-up, spring 14 is compressed, detects the subassembly lower extreme and receives to block to disappear the back, and spring 14 reconversion makes and detects the subassembly and resets, through the aforesaid setting for the operation is more automatic.

Referring to fig. 2, in a preferred embodiment, the inner wall of the guiding hole is provided with an internal thread, and the height of the upper end and the lower end of the internal thread is greater than the height of the upper end and the lower end of the pressing plate 15; the periphery of the pressing plate 15 is formed with an external thread 19 which can be matched with the internal thread, and the external thread 19 extends from the upper end of the pressing plate 15 to the lower end of the pressing plate 15. The fixing positions of the pressing plate 15 and the guide holes can be adjusted by rotating the pressing plate 15 up and down, and then the tightness of the spring 14 is adjusted, so that the PCB positioning device is better applied to adsorbing and transferring the printed circuit boards 4 of different types. Because the rigidity of the common printed circuit board 4 is higher, the force applied by the detection assembly to the printed circuit board 4 is favorable for positioning, adsorption and transfer when the force is higher, and the spring 14 is pressed more tightly; because the flexibility of the FPC (flexible printed circuit board, a kind of printed circuit board 4) is large, the force applied by the detection assembly to the FPC should be small to facilitate the movement, the adsorption and the transfer, and the spring 14 should be loosened at this time compared with the common printed circuit board 4. Further, a process groove 20 is formed below the internal thread of the guide hole, the process groove 20 protrudes in the radial direction relative to the guide hole, and the process groove 20 is arranged to facilitate machining of the internal thread.

Referring to fig. 2, in a preferred embodiment, a display lamp 18 is further disposed on the positioning device main body, and the display lamp 18 can display a plurality of colors; when the first Hall sensor 11 is triggered, the display lamp 18 displays a first color; the display lamp 18 displays a second color when the second hall sensor 12 is triggered; when the lower end of the detection assembly is not blocked, the display lamp 18 displays a third color; the first color, the second color, and the third color are all different colors. When different types of printed circuit boards 4 are transported, the relative position between the elastic member and the detection assembly needs to be adjusted, and therefore, the height at which the detection assembly is lifted when the first hall sensor 11 is triggered and the second hall sensor 12 is triggered needs to be recalibrated. The provision of the display lamp 18 facilitates the above-described debugging correction.

Referring to fig. 1 to 5, in still another embodiment of the present invention, a PCB transferring apparatus includes the above-mentioned PCB positioning apparatus, a transferring body 3 and a vacuum adsorption module 2, wherein the positioning apparatus and the vacuum adsorption module 2 are both fixed on the transferring body 3, the detection module and the vacuum adsorption module 2 both extend downward relative to the transferring body 3, and the height of the downward extension of the detection module relative to the transferring body 3 is greater than the height of the downward extension of the vacuum adsorption module 2 relative to the transferring body 3; when the detection assembly moves upwards to the position where the bottom of the detection assembly is flush with the bottom of the adsorption assembly, the first hall sensor 11 is triggered. Generally, the detection assembly and the vacuum adsorption assembly 2 are both disposed on the bottom surface of the transfer body 3, and the above-mentioned height of the detection assembly protruding downward relative to the transfer body 3 is greater than the height of the vacuum adsorption assembly 2 protruding downward relative to the transfer body 3, wherein the height refers to the distance between the bottom of the detection assembly and the bottom surface of the transfer body 3. The use mode of the PCB transfer device has been introduced correspondingly in the above-mentioned PCB positioning device, and is not repeated herein, and the PCB positioning device, the transfer body 3 and the vacuum adsorption component 2 are arranged on the PCB transfer device to accurately adsorb the printed circuit board 4, thereby avoiding errors generated when a positioning camera is used.

Please refer to fig. 1, further, the PCB positioning device and the vacuum absorption assembly 2 are disposed on the bottom surface of the transfer body 3, the bottom of the detection assembly of the PCB positioning device is disposed on the same plane, a plurality of positioning points are provided by disposing the plurality of positioning devices, so that the positioning is more accurate, and the absorption printed circuit board 4 is more stable by disposing the plurality of vacuum absorption assemblies 2, so that the accurate printed circuit board 4 is transferred. The vacuum adsorption component comprises a vacuum device and a sucker, the vacuum device can be connected to the PCB transferring device, the top end of the sucker is connected with the vacuum device and communicated with the vacuum device, the sucker extends downwards relative to the transferring main body 3, generally, the bottom of the sucker and the bottom of the positioning main body 1 are on the same plane, and the vacuum device can extract air in the sucker. The arrangement of the vacuum device and the sucker ensures that the sucker keeps vacuum through the air exhaust of the vacuum device and is adsorbed on the printed circuit board 4, thereby being more beneficial to automatic operation. The arrangement of the vacuum device and the suction cup is more beneficial to the automation operation.

Referring to fig. 1 and 5, in a preferred embodiment, the PCB transfer device further includes a jig 6, the jig 6 is provided with a positioning component 7 protruding upward, the transfer body 3 can move the positioning device to match with the positioning component 7, and when the positioning device matches with the positioning component 7, the positioning component 7 jacks up the lower end of the detection component, so that the detection component moves upward and triggers the second hall sensor 12. Generally, the target position for transferring the printed circuit board 4 is the jig 6. Furthermore, the number of the positioning parts 7 is multiple, the tops of the positioning parts 7 are on the same plane, the positioning parts 7 can be matched with the positioning holes 5 and the detection assemblies on the printed circuit board 4, and when the printed circuit board 4 is placed, the positioning parts 7 penetrate through the positioning holes 5 to jack up the detection assemblies and enable the detection assemblies to be lifted to trigger the second hall sensors 12. The positioning component 7 is arranged to be matched with the second Hall sensor 12, so that positioning points can be provided for the transfer printed circuit board 4, and positioning is more accurate. Furthermore, the positioning component 7 is a circular truncated cone positioning column, the column diameter of the positioning component 7 is smaller than the diameter of the guide hole on the positioning main body 1, and the positioning component 7 can partially extend into the guide hole.

Referring to fig. 1, 2 and 5, in a preferred embodiment, when the lower end of the detection assembly is not blocked or jacked, the height difference between the second hall sensor 12 and the top of the detection assembly is adapted to the height of the positioning component 7, and the height difference between the bottom of the positioning body 1 and the transfer body 3 is adapted to the height difference between the bottom of the vacuum adsorption assembly 2 and the transfer body 3. The above-mentioned "height difference adaptation" may be that the height difference is equal or slightly wrong; "height-adaptive" may be equal in height or slightly erroneous. Further, when the lower end of the detection assembly is not blocked or not jacked up, the height difference between the second hall sensor 12 and the top of the detection assembly is equal to the height of the positioning component 7, and the height difference between the bottom of the positioning body 1 and the transfer body 3 is equal to the height difference between the bottom of the vacuum adsorption assembly 2 and the transfer body 3. The jig 6 is generally a rectangular parallelepiped, the positioning component 7 is a circular truncated cone positioning column on the upper surface of the jig 6, and the height of the positioning component 7 is the distance from the top of the positioning component 7 to the upper surface of the jig 6.

The PCB positioning device provided by the utility model realizes the judgment of the accurate adsorption position of the printed circuit board 4 by the matching of the sensing probe of the positioning device and the positioning hole 5 of the printed circuit board 4; when the PCB transferring device places the printed circuit board 4 on the jig 6, the accurate placing position is realized through the matching of the sensing probe and the positioning component 7 on the jig 6. The error caused by directly adopting a positioning camera for positioning is solved; and the problem that the FPC is difficult to position and has high rejection rate during transfer is solved, and the device is more suitable for sucking and transferring the FPC.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, reference to the description of the terms "preferred embodiment," "yet another embodiment," "other embodiments," or "specific examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims

1. The PCB positioning device is characterized by comprising a positioning main body (1), a first Hall sensor, a second Hall sensor (12) and a detection assembly; the first Hall sensor and the second Hall sensor (12) are arranged at the upper end of the positioning main body (1) at intervals up and down; the upper end of the detection assembly is embedded in the positioning main body (1), the lower end of the detection assembly extends downwards towards the lower end of the positioning main body (1), the lower end of the detection assembly is blocked or can be enabled to move upwards when being jacked up, the lower end of the detection assembly is not blocked, the upper end of the detection assembly is located below the first Hall sensor and the second Hall sensor (12), and the first Hall sensor and the second Hall sensor (12) can be sequentially triggered when the detection assembly moves upwards.

2. The PCB positioning device according to claim 1, wherein the detection component comprises a magnetic component (13) and a detection component which are connected with each other, the magnetic component (13) is positioned at the upper end of the detection component, when the detection component is not blocked, the lower end of the detection component extends downwards towards the lower end of the positioning main body (1), when the lower end of the detection component is blocked or jacked up, the detection component moves upwards, and the magnetic component (13) can sequentially trigger the first Hall sensor and the second Hall sensor (12).

3. The PCB positioning apparatus of claim 2, wherein the magnetic member (13) is a magnet, the detecting member is a sensing probe, and the magnet is embedded in the top of the sensing probe.

4. The PCB positioning device as claimed in claim 1, wherein the lower end of the positioning body (1) is provided with a guide hole with a downward opening, the guide hole extends from the lower end of the positioning body (1) to the upper end of the positioning body (1), the upper end of the detection component is embedded in the guide hole, when the detection component is not blocked, the lower end of the detection component extends downwards out of the guide hole, and the first Hall sensor and the second Hall sensor (12) are arranged on one side of the guide hole.

5. PCB positioning device according to claim 4, characterized in that the probe assembly is provided in its middle with a stop (16) projecting in the radial direction, the limit table (16) is positioned between the upper end of the detection component and the lower end of the detection component, a spring (14) and a pressure plate (15) are arranged in the guide hole, the limiting table (16) is positioned below the pressure plate (15), the spring (14) is sleeved outside the upper end of the detection assembly, and the spring (14) is limited between the pressure plate (15) and the limiting table (16), the outer side of the pressure plate (15) is fixedly connected with the guide hole, a through part penetrating through the upper surface and the lower surface of the pressure plate (15) is arranged in the middle of the pressure plate (15), the through part can be sleeved at the upper end of the detection assembly, and when the detection assembly moves upwards, the detection assembly can slide upwards in the through part.

6. The PCB positioning device as recited in claim 5, wherein the inner wall of the guide hole is provided with an internal thread, and the height of the upper end and the lower end of the internal thread is greater than the height of the upper end and the lower end of the pressure plate (15); the periphery of the pressing plate (15) is provided with an external thread (19) matched with the internal thread, and the external thread (19) extends from the upper end of the pressing plate (15) to the lower end of the pressing plate (15).

7. The PCB positioning device of claim 1, wherein a display lamp is further arranged on the positioning device body, and the display lamp can display a plurality of colors; the display lamp displays a first color when the first Hall sensor is triggered; the display lamp displays a second color when the second Hall sensor (12) is triggered; when the lower end of the detection assembly is not blocked, the display lamp displays a third color; the first color, the second color, and the third color are all different colors.

8. A PCB transfer device comprising a PCB positioning device according to any one of claims 1 to 7, a transfer body (3) and a vacuum adsorption module (2), both the positioning device and the vacuum adsorption module (2) being fixed to the transfer body (3), both the detection module and the vacuum adsorption module (2) protruding downwards with respect to the transfer body (3), the detection module protruding downwards with respect to the transfer body (3) by a greater height than the vacuum adsorption module (2) protruding downwards with respect to the transfer body (3); the detection assembly moves upwards until the bottom of the detection assembly is flush with the bottom of the adsorption assembly, and the first Hall sensor is triggered.

9. The PCB transfer device according to claim 8, further comprising a jig (6), wherein the jig (6) is provided with a positioning member (7) protruding upward, the transfer body (3) can move the positioning member to match with the positioning member (7), and when the positioning member is matched with the positioning member (7), the positioning member (7) jacks up the lower end of the detection assembly, so that the detection assembly moves upward and triggers the second hall sensor (12).

10. The PCB transfer device of claim 9, wherein the height difference between the second hall sensor (12) and the top of the probe assembly corresponds to the height of the positioning member (7) when the lower end of the probe assembly is not blocked or not jacked up, and the height difference between the bottom of the positioning body (1) and the transfer body (3) corresponds to the height difference between the bottom of the vacuum chuck assembly (2) and the transfer body (3).