CN218675211U - A testing arrangement for PCB board - Google Patents
A testing arrangement for PCB board Download PDFInfo
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- CN218675211U CN218675211U CN202222821455.2U CN202222821455U CN218675211U CN 218675211 U CN218675211 U CN 218675211U CN 202222821455 U CN202222821455 U CN 202222821455U CN 218675211 U CN218675211 U CN 218675211U
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Abstract
The utility model discloses a testing device for a PCB, which comprises an operation platform and two upright posts arranged at the upper end of the operation platform, wherein a fixing plate is arranged between the two upright posts; the upper end of the operation platform is provided with a feeding mechanism, the lower end of the fixed plate is provided with a lifting mechanism corresponding to the feeding mechanism, and the lower end of the lifting mechanism is provided with a testing mechanism; the testing mechanism comprises a testing board and two groups of pressing pieces arranged at the outer end of the testing board, a plurality of probes positioned between the two groups of pressing pieces are arranged at the lower end of the testing board, and elastic pieces are arranged between the probes and the testing board; two sets of pressing pieces and probe are all perpendicular with the PCB board, and the lower extreme of two sets of pressing pieces is less than the lower extreme of probe, and two sets of pressing pieces are used for restricting the PCB board and warp, and the local position of PCB board receives pressure, because the both ends of PCB board are pushed down to the pressing piece, and the local position that reduces the PCB board produces the both ends that reverse acting force drove the PCB board and rises to warp to reduce the phenomenon that the PCB board appears warping.
Description
Technical Field
The utility model relates to a technical field of circuit board test, in particular to testing arrangement for PCB board.
Background
The PCB is named as a printed circuit board and is a support body of electronic components. With the continuous progress of printed circuit board technology, the structure of the circuit board becomes more and more complex, and the reliability requirement becomes higher and higher, so the test requirement of the circuit board also increases. The test equipment tests the circuit board to judge whether the circuit board is qualified.
However, in the testing process of the PCB, the probe applies pressure downwards, which may cause uneven stress on the PCB, and the non-pressed portion of the PCB may be pulled to be raised by the pressed portion, which may cause deformation of the PCB and affect the quality of the PCB.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a testing arrangement for PCB board aims at the PCB board in the testing process, avoids appearing the phenomenon that the PCB board warp.
In order to achieve the above purpose, the utility model provides a testing device for a PCB board, which comprises an operation platform and two upright posts arranged at the upper end of the operation platform, wherein a fixing plate is arranged between the two upright posts; a feeding mechanism is arranged at the upper end of the operating platform, a lifting mechanism corresponding to the feeding mechanism is arranged at the lower end of the fixing plate, and a testing mechanism for detecting the PCB is arranged at the lower end of the lifting mechanism;
the testing mechanism comprises a testing plate and two groups of pressing pieces arranged at the outer end of the testing plate, a plurality of probes are arranged at the lower end of the testing plate and positioned between the two groups of pressing pieces, the testing mechanism is provided with an elastic piece, and two ends of the elastic piece are respectively connected with the probes and the testing plate; the two groups of pressing pieces and the probe are perpendicular to the PCB, the lower ends of the two groups of pressing pieces are lower than the lower end of the probe, one end of the probe is used for contacting the PCB, the other end of the probe is used for being connected with a testing machine, and the two groups of pressing pieces are used for being abutted to the PCB.
Preferably, elevating system includes electric putter, telescopic link and connecting plate, electric putter with the fixed plate is connected, electric putter's output with the one end of telescopic link is connected, the other end of telescopic link with the connecting plate is connected, the connecting plate be used for with survey test panel and connect, electric putter is used for the drive the telescopic link reciprocates.
Preferably, a magnet is arranged at the lower end of the connecting plate, the test plate is made of a metal material containing any one of iron, nickel and cobalt, and the magnet is magnetically connected with the test plate; and/or the presence of a gas in the gas,
the upper end of the test board is provided with a magnet, and the connecting board is made of a metal material containing any one of iron, nickel and cobalt.
Preferably, the feeding mechanism includes a rotating shaft, a motor and two feeding plates, the motor is mounted on the operating platform, an output end of the motor is connected with the rotating shaft, the two feeding plates are arranged opposite to each other with the rotating shaft as a center, the two feeding plates are both fixedly connected with an outer wall of the rotating shaft, and the motor is used for driving the rotating shaft to rotate so that the two feeding plates rotate clockwise or counterclockwise.
Preferably, the outer wall of the rotating shaft is provided with two connecting rods, and the two connecting rods are oppositely arranged by taking the rotating shaft as a center; and clamping grooves are formed in the ends, close to the rotating shaft, of the two feeding plates, and the two connecting rods are clamped with the clamping grooves respectively.
Preferably, two ends of each feeding plate are provided with rollers, and the rollers are used for being in sliding connection with the upper end of the operation platform.
Preferably, a groove is formed in the upper end of the operation platform, the cross section of the groove is annular, the outer ends of the feeding plates are arc-shaped, the two feeding plates are located in the groove, and a movable gap is formed between the outer ends of the feeding plates and the inner wall of the operation platform.
Preferably, the testing device further comprises a safety grating arranged on the fixing plate, and the safety grating is electrically connected with the lifting mechanism and the feeding mechanism respectively.
Preferably, the testing device further comprises a driving module arranged on the stand column, the driving module is electrically connected with the lifting mechanism and the feeding mechanism respectively, and the driving module is used for driving the lifting mechanism and the feeding mechanism to operate.
Preferably, two ends of the two upright posts are respectively clamped with the fixing plate and the operation platform.
The technical proposal of the utility model is that a fixing plate is arranged between the two upright posts; a feeding mechanism is arranged at the upper end of the operating platform, a lifting mechanism corresponding to the feeding mechanism is arranged at the lower end of the fixing plate, and a testing mechanism for detecting the PCB is arranged at the lower end of the lifting mechanism; the feeding mechanism is used for placing the PCB, and the lifting mechanism is used for driving the testing mechanism to detect the PCB; the testing mechanism comprises a testing plate and two groups of pressing pieces arranged at the outer end of the testing plate, a plurality of probes are arranged at the lower end of the testing plate and are positioned between the two groups of pressing pieces, the testing mechanism is provided with an elastic piece, and two ends of the elastic piece are respectively connected with the probes and the testing plate; the two groups of pressing pieces and the probe are used for being perpendicular to the PCB, the lower ends of the two groups of pressing pieces are lower than the lower end of the probe, one end of the probe is used for contacting the PCB, the other end of the probe is used for being connected with a testing machine, and the two groups of pressing pieces are used for limiting the deformation of the PCB. The PCB to be tested is placed on the feeding mechanism, the lifting mechanism drives the test board to move downwards, the probes vertically act on the PCB, the probes are in contact with the PCB, and the elastic pieces enable the probes to have a vertical telescopic function, so that the probes are prevented from crushing the PCB; the probe presses the local position of the PCB, the local position of the PCB is pressed by the pressure, the pressing piece is just abutted against the PCB, and the lifting mechanism drives the test board to recover the original position after the PCB is tested. Because the pressing piece presses the two ends of the PCB, the reverse acting force generated at the local position of the PCB is reduced to drive the two ends of the PCB to warp, and therefore the phenomenon that the PCB deforms is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of the testing apparatus of the present invention.
Fig. 2 is a top view of the testing device according to an embodiment of the present invention.
The reference numbers illustrate:
the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if the expression "and/or" and/or "is used throughout, the meaning includes three parallel schemes, for example," A and/or B ", including scheme A, or scheme B, or a scheme satisfying both schemes A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a testing arrangement 100. Referring to fig. 1 and 2, in a first embodiment of the present invention, the testing apparatus 100 for a PCB 8 includes a workbench 1 and two columns 3 installed at an upper end of the workbench 1, wherein a fixing plate 2 is disposed between the two columns 3; a feeding mechanism 5 is arranged at the upper end of the operating platform 1, a lifting mechanism 4 corresponding to the feeding mechanism 5 is arranged at the lower end of the fixing plate 2, and a testing mechanism 6 for detecting the PCB 8 is arranged at the lower end of the lifting mechanism 4; this feed mechanism 5 is used for placing PCB board 8, and elevating system 4 drive accredited testing organization 6 detects PCB board 8.
The testing mechanism 6 comprises a testing board 62 and two groups of pressing pieces 61 arranged at the outer end of the testing board 62, a plurality of probes 621 are arranged at the lower end of the testing board 62, the probes 621 are positioned between the two groups of pressing pieces 61, the testing mechanism 6 is provided with an elastic piece 63, and two ends of the elastic piece 63 are respectively connected with the probes 621 and the testing board 62; the two groups of pressing pieces 61 and the probe 621 are perpendicular to the PCB board 8, the lower ends of the two groups of pressing pieces 61 are lower than the lower end of the probe 621, one end of the probe 621 is used for contacting the PCB board 8, the other end of the probe 621 is used for connecting a tester, and the two groups of pressing pieces 61 are used for limiting the deformation of the PCB board 8. The probe 621 can lead out signals of the PCB 8 and test the resistance and capacitance of the PCB 8 by connecting a tester, and the probe 621 is connected with the tester, so that the purpose of measuring the PCB 8 by the tester can be achieved, and defective products can be screened out; through setting up pressing member 61 at survey test panel 62 both ends, probe 621 presses PCB board 8 local position, and PCB board 8's local position receives pressure, and pressing member 61 can reduce PCB board 8's local position and produce the opposite force and drive PCB board 8's both ends and rise to reduce the phenomenon that PCB board 8 appears warping.
The technical proposal of the utility model is that a fixing plate 2 is arranged between two upright posts 3; a feeding mechanism 5 is arranged at the upper end of the operating platform 1, a lifting mechanism 4 corresponding to the feeding mechanism 5 is arranged at the lower end of the fixing plate 2, and a testing mechanism 6 for detecting the PCB 8 is arranged at the lower end of the lifting mechanism 4; the feeding mechanism 5 is used for placing a PCB (printed circuit board) 8, and the lifting mechanism 4 is used for driving the testing mechanism 6 to detect the PCB 8; the testing mechanism 6 comprises a testing board 62 and two groups of pressing pieces 61 arranged at the outer end of the testing board 62, a plurality of probes 621 are arranged at the lower end of the testing board 62, the probes 621 are positioned between the two groups of pressing pieces 61, the testing mechanism 6 is provided with an elastic piece 63, and two ends of the elastic piece 63 are respectively connected with the probes 621 and the testing board 62; the two groups of pressing pieces 61 and the probe 621 are perpendicular to the PCB board 8, the lower ends of the two groups of pressing pieces 61 are lower than the lower end of the probe 621, one end of the probe 621 is used for contacting the PCB board 8, the other end of the probe 621 is used for connecting a tester, and the two groups of pressing pieces 61 are used for limiting the deformation of the PCB board 8. Place the PCB board 8 that awaits measuring on feed mechanism 5, elevating system 4 drives and survey test panel 62 downstream, probe 621 vertical action is on PCB board 8, probe 621 contacts with PCB board 8, elastic component 63 makes probe 621 possess the flexible function of vertical direction, avoid probe 621 to crush PCB board 8, probe 621 presses PCB board 8 local position, PCB board 8's local position receives pressure, pressing part 61 offsets with PCB board 8 just, PCB board 8 accomplishes the test back elevating system drive and surveys test panel normal position. Because the pressing member 61 presses the two ends of the PCB 8, the reverse acting force generated at the local position of the PCB 8 is reduced to drive the two ends of the PCB 8 to warp, thereby reducing the deformation of the PCB 8.
As shown in fig. 1, the lifting mechanism 4 includes an electric push rod 41, an expansion link 42 and a connecting plate 43, the electric push rod 41 is connected to the fixing plate 2, an output end of the electric push rod 41 is connected to one end of the expansion link 42, the other end of the expansion link 42 is connected to the connecting plate 43, the connecting plate 43 is used for being flexibly connected to the test board 62, and the electric push rod 41 is used for driving the expansion link 42 to move up and down. The electric push rod 41 can drive the test board 62 to move up and down in the vertical direction, so that the probes 621 at the lower end of the test board 62 contact with the PCB 8, and the test operation of the test device 100 is completed. In this embodiment, the electric push rod 41 can be replaced by a hydraulic device to move the telescopic rod 42 up and down.
Specifically, a magnet (not shown) is disposed at the lower end of the connecting plate 43, the testing plate 62 is made of a metal material containing any one of iron, nickel and cobalt, and the magnet is magnetically connected with the testing plate 62; this magnetite is connected with the magnetism of surveying test panel 62, and the board 62 is surveyed in convenient to detach, conveniently changes the survey test panel 62 of different models, and every probe 621 type of surveying test panel 62 and connecting is different, can make testing arrangement 100 accomplish different test operation to improve testing arrangement 100's flexibility.
In another embodiment, the upper end of the test board 62 is provided with a magnet, and the connecting board 43 is made of a metal material containing any one of iron, nickel and cobalt. The beneficial effects of the magnetic connection between the magnets and the test board 62 are not described in detail herein.
Specifically, the feeding mechanism 5 includes a rotating shaft 52, a motor 51 and two feeding plates 53, the motor 51 is mounted on the work table 1, an output end of the motor 51 is connected to the rotating shaft 52, the two feeding plates 53 are arranged opposite to each other with the rotating shaft 52 as a center, both the two feeding plates 53 are fixedly connected to an outer wall of the rotating shaft 52, and the motor 51 is configured to drive the rotating shaft 52 to rotate, so that the two feeding plates 53 rotate clockwise or counterclockwise. The feeding plates 53 rotate in the horizontal direction, the two feeding plates 53 can be used for placing the PCB 8, and the two feeding plates 53 are respectively used for placing the PCB 8 under test and the PCB 8 to be tested; of course, three or four feeding plates 53 may be provided in the feeding mechanism 5; the motor 51 is adopted to drive the rotating shaft 52 to rotate, so that the two feeding plates 53 can be moved to the lower part of the test board 62, and simultaneously, the tested PCB 8 can be moved to the other side of the test board 62 to be taken out, and the operation efficiency of the test device 100 can be improved. In this embodiment, the feeding mechanism 5 is further connected to a material transporting mechanism (not shown), and the testing device 100 can further use a control device to control the material transporting mechanism, the feeding mechanism 5 and the lifting mechanism 4 to operate simultaneously, so as to realize the functions of automatically testing the PCB 8 and automatically transporting.
Specifically, two connecting rods 521 are arranged on the outer wall of the rotating shaft 52, and the two connecting rods 521 are arranged oppositely with the rotating shaft 52 as the center; clamping grooves are formed in the ends, close to the rotating shaft 52, of the two feeding plates 53, and the two connecting rods 521 are clamped with the clamping grooves respectively. The rotating shaft 52 is clamped with the two feeding plates 53 through the two connecting rods 521, so that the feeding mechanism 5 is convenient to mount and dismount, and meanwhile, the rotating shaft 52 and the two feeding plates 53 can be stably connected.
Specifically, two ends of each feeding plate 53 are provided with rollers 54, and the rollers 54 are used for being slidably connected with the upper end of the workbench 1. The roller 54 can be used for supporting the feeding plate 53 to prevent the lower end of the feeding plate 53 from directly contacting with the upper end of the workbench 1; meanwhile, the friction force between the feeding plate 53 and the upper end of the operation platform 1 can be reduced, the resistance of the motor 51 for driving the feeding plate 53 to rotate is reduced, and the energy consumption of the motor 51 is saved.
As shown in fig. 1 and 2, a groove 11 is formed in the upper end of the work table 1, the cross section of the groove 11 is annular, the outer ends of the feeding plates 53 are arc-shaped, the two feeding plates 53 are both located in the groove 11, and a movable gap 12 is formed between the outer ends of the feeding plates 53 and the inner wall of the work table 1. When the feeding mechanism 5 runs for a long time, the loosening phenomenon between the feeding plate 53 and the connecting rod 521 inevitably occurs; because the two feeding plates 53 are positioned in the groove 11, even if the feeding plates 53 and the connecting rod 521 are loosened, the outer ends of the feeding plates 53 are also abutted by the inner wall of the workbench 1, the outer ends of the feeding plates 53 are in sliding contact with the outer wall of the workbench 1, the feeding plates 53 are prevented from being completely separated from the connecting rod 521, and the feeding plates 53 are always positioned in the groove 11, so that the feeding plates 53 can be driven to rotate under the condition that the connecting rod 521 and the feeding plates 53 are loosened; and a movable gap 12 is arranged between the outer end of the feeding plate 53 and the inner wall of the operation platform 1, so that the feeding plate 53 can rotate and move in the groove 11 conveniently.
Specifically, the testing device 100 further comprises a safety grating 7 disposed on the fixing plate 2, and the safety grating 7 is electrically connected to the lifting mechanism 4 and the feeding mechanism 5 respectively. The safety grating 7 is a photoelectric mechanism for preventing people from approaching the equipment, can avoid casualties, and the safety grating 7 can be used for replacing a traditional mechanical barrier or mechanical protection in other modes and can also increase the maintainability of the equipment. The safety grating 7 is matched, so that the operability and the efficiency of mechanical equipment can be improved. When the testing device 100 is in automatic operation, a worker approaches the safety grating 7, and the safety grating 7 can drive the lifting mechanism 4 and the feeding mechanism 5 to stop operation, so that the safety of the testing device 100 is improved.
Specifically, the testing device 100 further comprises a driving module 9 disposed on the column 3, the driving module 9 is electrically connected to the lifting mechanism 4 and the feeding mechanism 5, and the driving module 9 is configured to drive the lifting mechanism 4 and the feeding mechanism 5 to operate. In this embodiment, the driving module 9 is equivalent to a control device, and the driving module 9 controls the lifting mechanism 4 and the feeding mechanism 5 to operate simultaneously, so that the operation and control of the testing device 100 are more convenient.
Specifically, the two ends of the two upright posts 3 are respectively clamped with the fixing plate 2 and the operation platform 1. The two ends of the two upright posts 3 are respectively clamped with the fixing plate 2 and the operation platform 1, so that the test device 100 can be conveniently detached and installed, and each part of the test device 100 can be respectively detached and moved, thereby facilitating the transportation of the test device 100.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (10)
1. A testing device for a PCB is characterized by comprising an operation platform and two stand columns arranged at the upper end of the operation platform, wherein a fixing plate is arranged between the two stand columns; a feeding mechanism is arranged at the upper end of the operating platform, a lifting mechanism corresponding to the feeding mechanism is arranged at the lower end of the fixing plate, and a testing mechanism is arranged at the lower end of the lifting mechanism;
the testing mechanism comprises a testing board and two groups of pressing pieces arranged at the outer end of the testing board, a plurality of probes are arranged at the lower end of the testing board and positioned between the two groups of pressing pieces, an elastic piece is arranged on the testing mechanism, and two ends of the elastic piece are respectively connected with the probes and the testing board; the two groups of pressing pieces and the probe are perpendicular to the PCB, the lower ends of the two groups of pressing pieces are lower than the lower end of the probe, one end of the probe is used for contacting the PCB, the other end of the probe is used for being connected with a testing machine, and the two groups of pressing pieces are used for being abutted to the PCB.
2. The testing device as claimed in claim 1, wherein the lifting mechanism comprises an electric push rod, a telescopic rod and a connecting plate, the electric push rod is connected with the fixing plate, an output end of the electric push rod is connected with one end of the telescopic rod, the other end of the telescopic rod is connected with the connecting plate, the connecting plate is used for being connected with the testing plate, and the electric push rod is used for driving the telescopic rod to move up and down.
3. The testing device as claimed in claim 2, wherein a magnet is provided at a lower end of the connecting plate, the testing plate is made of a metal material containing any one of iron, nickel and cobalt, and the magnet is magnetically connected to the testing plate; and/or the presence of a gas in the gas,
the upper end of the test board is provided with a magnet, and the connecting board is made of a metal material containing any one of iron, nickel and cobalt.
4. The testing device as claimed in claim 3, wherein the feeding mechanism comprises a rotating shaft, a motor and two feeding plates, the motor is mounted on the workbench, an output end of the motor is connected with the rotating shaft, the two feeding plates are arranged opposite to each other with the rotating shaft as a center, the two feeding plates are both fixedly connected with an outer wall of the rotating shaft, and the motor is used for driving the rotating shaft to rotate so as to enable the two feeding plates to rotate clockwise or counterclockwise.
5. The testing device according to claim 4, wherein two connecting rods are arranged on the outer wall of the rotating shaft, and the two connecting rods are oppositely arranged by taking the rotating shaft as a center; and clamping grooves are formed in one ends, close to the rotating shaft, of the two feeding plates, and the two connecting rods are clamped with the clamping grooves respectively.
6. The testing device as claimed in claim 5, wherein rollers are provided at both ends of each feeding plate, the rollers being adapted to slidably engage with an upper end of the table.
7. The testing device as claimed in claim 6, wherein a groove is formed at the upper end of the workbench, the cross section of the groove is annular, the outer ends of the feeding plates are arc-shaped, the two feeding plates are both positioned in the groove, and a movable gap is formed between the outer ends of the feeding plates and the inner wall of the workbench.
8. The testing device of claim 1, further comprising a safety light barrier disposed on the fixing plate, the safety light barrier being electrically connected to the lifting mechanism and the feeding mechanism, respectively.
9. The testing device as claimed in claim 1, further comprising a driving module disposed on the column, wherein the driving module is electrically connected to the lifting mechanism and the feeding mechanism, respectively, and is configured to drive the lifting mechanism and the feeding mechanism to operate.
10. The testing device according to any one of claims 1 to 9, wherein both ends of the two posts are respectively clamped with the fixing plate and the workbench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222821455.2U CN218675211U (en) | 2022-10-25 | 2022-10-25 | A testing arrangement for PCB board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222821455.2U CN218675211U (en) | 2022-10-25 | 2022-10-25 | A testing arrangement for PCB board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218675211U true CN218675211U (en) | 2023-03-21 |
Family
ID=85566392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222821455.2U Active CN218675211U (en) | 2022-10-25 | 2022-10-25 | A testing arrangement for PCB board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218675211U (en) |
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2022
- 2022-10-25 CN CN202222821455.2U patent/CN218675211U/en active Active
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