CN221039237U - DCR specific embedded test fixture - Google Patents
DCR specific embedded test fixture Download PDFInfo
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- CN221039237U CN221039237U CN202322726956.7U CN202322726956U CN221039237U CN 221039237 U CN221039237 U CN 221039237U CN 202322726956 U CN202322726956 U CN 202322726956U CN 221039237 U CN221039237 U CN 221039237U
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Abstract
The utility model discloses a DCR specific embedded test fixture, which comprises a machine body, wherein a backboard is fixedly arranged above the machine body, a driving motor is arranged at the bottom of the machine body, a transmission rod is fixedly arranged at one end of the driving motor, a test disc is fixedly arranged at the other end of the transmission rod, and a fixing bolt penetrates through the upper part of the test disc; this DCR specific embeds test fixture, through organism, test panel, fixing bolt, embedding testboard, central test board and electric slide rail's setting, when using the device to carry out MSAP test to the printed circuit board, can come embedding testboard and central test board of freely changing suitable size through fixing bolt according to the size of current printed circuit board, conveniently test the printed circuit board of equidimension not, cooperation pneumatic cylinder, hydraulic stem, electric slide rail and electric slide simultaneously, the testing point position of probe has been adjusted freely, has satisfied the resistance test to appointed testing point position on the circuit board.
Description
Technical Field
The utility model relates to the technical field related to MSAP (multi-stage assembly test) of printed circuit boards, in particular to a DCR (distributed control register) specific embedded test fixture.
Background
Since the first mobile phone in 4 months in 1973, the mobile phone has been born for many years, competition products among technical staff have been bloomed throughout, great convenience is brought to modern life of people, since then, the development of the mobile phone is more and more rapid, the smart mobile phone will become a new development direction of the mobile phone in the future, along with the development of the communication and information technology industry and the continuous improvement of information requirements of people, the diversity of products is enhanced by a plurality of circuit board manufacturers rack brains, the purpose is to provide unique services for customers, and the flexible circuit board is rapidly developed to a miniaturization direction in electronic equipment represented by the smart mobile phone, so that on one hand, the products tend to be miniaturized; on the other hand, the reliability is high, and consumers currently demand smart phones; the multifunctional, high-quality and stable performance test is a great test for the PCB of the mobile phone, and in order to improve the quality of the PCB, manufacturers of various circuit boards test the 4W network resistance of the PCB.
When the existing DCR specific embedded test fixture tests the printed circuit board, the existing test method firstly measures the resistance value of 10-15 sheets for each batch of boards, then the average value of the resistance values is calculated, parameters are set according to the average value, all 4W networks of the boards in the batch are measured according to the resistance value, and the defects of the method are that: the resistance of the important line cannot be controlled independently, and the test program does not have DCR embedded logic, so that the point location impedance test and the adjacent two line test resistance cannot be specified, and therefore, a DCR specific embedded test fixture is required to be provided.
Disclosure of utility model
The utility model aims to provide a DCR specific embedded test fixture to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a DCR specific embedded test fixture, includes the organism, the top fixed mounting of organism has the backplate, the bottom of organism is provided with driving motor, driving motor's one end fixed mounting has the transfer line, the other end fixed mounting of transfer line has the test panel, the top of test panel runs through there is fixing bolt, fixing bolt's one end swing joint has the embedding testboard, the place ahead of embedding testboard is provided with central testboard, the top of organism is provided with the pneumatic cylinder, the inside swing joint of pneumatic cylinder has the hydraulic stem, the one end fixed mounting of hydraulic stem has the support frame, the outside of support frame is provided with electric telescopic handle, electric telescopic handle's one end fixed mounting has the locating plate, the bottom of locating plate is provided with electric slide rail.
Preferably, the test disc and the machine body form a rotary structure through a transmission rod, and the central line of the transmission rod is matched with the central line of the test disc.
Preferably, the embedded test bench is movably connected with the test disc through a fixing bolt, and the embedded test bench is distributed on the test disc at equal intervals.
Preferably, the supporting frame and the machine body form a lifting structure through a hydraulic rod, and the hydraulic rod and the hydraulic cylinder are vertically distributed.
Preferably, a circuit detector is arranged above the support frame, one end of the circuit detector is fixedly provided with a connecting wire, and the other end of the connecting wire is fixedly provided with a current converter.
Preferably, the locating plate forms a telescopic structure with the support frame through an electric telescopic rod, and the electric telescopic rod is symmetrically arranged with the central axis of the support frame.
Preferably, the outside swing joint of electronic slide rail has electronic slider, the one end fixed mounting of electronic slider has the spot measurement piece, the bottom of spot measurement piece is provided with the probe.
Compared with the prior art, the utility model has the beneficial effects that:
1. According to the DCR specific embedded test fixture, through the arrangement of the machine body, the test disc, the fixing bolt, the embedded test table, the central test table and the electric slide rail, when the device is used for MSAP test of a printed circuit board, the embedded test table and the central test table with proper sizes can be freely replaced through the fixing bolt according to the sizes of the current printed circuit board, the printed circuit boards with different sizes can be conveniently tested, meanwhile, the test points of probes can be freely adjusted by matching with the hydraulic cylinder, the hydraulic rod, the electric slide rail and the electric slide block, the resistance test of the appointed test points on the circuit board is met, and the specific embedded test fixture for the specific developed DCR can carry out independent 4W resistance test on important circuits of the PCB, so that the customer can control the specific resistance of the important circuits of the PCB, the factory quality of the PCB is improved, and the rejection after plug-in due to the quality problem of the PCB is reduced;
2. The DCR specific embedded test fixture is characterized in that through the arrangement of the support frame, the circuit detector, the connecting wire, the current converter and the probes, when the device is used for carrying out MSAP test on a printed circuit board, four groups of probes are used for completing four-wire test on the printed circuit board, meanwhile, resistance values on the printed circuit board are tested by the probes and are transmitted to the circuit detector through the current converter for carrying out resistance detection, thus, the matching of adjacent networks is realized, the requirement that the network point of the test is the nearest line for matching is met, the tested line resistance value is the resistance value of the adjacent shortest line, the test result of the current printed circuit board can be observed and recorded by a tester, the tedious operation that each batch of printed circuit board is required to test the resistance value of 10-15 pieces firstly is avoided, and then the average value of the resistance values is calculated is improved, and the integral test efficiency of the device is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic diagram of the structure of a test disc according to the present utility model;
FIG. 3 is a schematic diagram of an embedded test stand according to the present utility model;
FIG. 4 is a schematic view of the hydraulic stem of the present utility model;
fig. 5 is a schematic structural view of the spot measurement block according to the present utility model.
In the figure: 1. a body; 2. a back plate; 3. a driving motor; 4. a transmission rod; 5. a test tray; 6. a fixing bolt; 7. embedding a test board; 8. a central test stand; 9. a hydraulic cylinder; 10. a hydraulic rod; 11. a support frame; 12. a circuit detector; 13. a connecting wire; 14. a current converter; 15. an electric telescopic rod; 16. a positioning plate; 17. an electric slide rail; 18. an electric slide block; 19. a spot measurement block; 20. and (3) a probe.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, the present utility model provides the following technical solutions: the utility model provides a DCR specific embedded test fixture, which comprises a machine body 1, the top fixed mounting of organism 1 has backplate 2, the bottom of organism 1 is provided with driving motor 3, driving motor 3's one end fixed mounting has transfer line 4, the other end fixed mounting of transfer line 4 has test panel 5, fixing bolt 6 has been run through to test panel 5's top, fixing bolt 6's one end swing joint has embedded testboard 7, the place ahead of embedded testboard 7 is provided with central testboard 8, organism 1's top is provided with pneumatic cylinder 9, the inside swing joint of pneumatic cylinder 9 has hydraulic rod 10, the one end fixed mounting of hydraulic rod 10 has support frame 11, the outside of support frame 11 is provided with electric telescopic handle 15, electric telescopic handle 15's one end fixed mounting has locating plate 16, the bottom of locating plate 16 is provided with electric slide rail 17.
In this embodiment, the test disc 5 and the machine body 1 form a rotating structure through the transmission rod 4, the center line of the transmission rod 4 is identical to the center line of the test disc 5, the test disc 5 is driven to rotate through the transmission rod 4, and the embedded test board 7 on the test disc 5 drives the internal printed circuit board to follow the changing position.
According to the embodiment, the embedded test board 7 is movably connected with the test board 5 through the fixing bolts 6, the embedded test board 7 is distributed on the test board 5 at equal intervals, and the embedded test board 7 and the central test board 8 with proper sizes can be replaced according to the sizes of the current printed circuit boards through the fixing bolts 6, so that the printed circuit boards with different sizes can be tested conveniently.
In this embodiment, the supporting frame 11 forms a lifting structure with the machine body 1 through the hydraulic rod 10, the hydraulic rod 10 and the hydraulic cylinder 9 are vertically distributed, the hydraulic rod 10 and the hydraulic cylinder 9 are convenient to freely adjust the height of the probe 20, and the testing work of different points is assisted to be completed.
In this embodiment, the circuit detector 12 is disposed above the supporting frame 11, one end of the circuit detector 12 is fixedly provided with the connecting wire 13, the other end of the connecting wire 13 is fixedly provided with the current converter 14, the probe 20 tests the resistance value on the printed circuit board and transmits the resistance value to the circuit detector 12 through the current converter 14 to perform resistance detection, thus realizing adjacent network pairing and meeting the requirement of pairing the nearest line at the tested network point.
In this embodiment, the positioning plate 16 forms a telescopic structure with the supporting frame 11 through the electric telescopic rod 15, the electric telescopic rod 15 is symmetrically arranged with the central axis of the supporting frame 11, the electric telescopic rod 15 can freely adjust the front and back positions of the positioning plate 16 above the machine body 1, and the auxiliary probe 20 completes the position changing work of different points.
In this embodiment, the outside swing joint of electronic slide rail 17 has electronic slider 18, and the one end fixed mounting of electronic slider 18 has a little survey piece 19, and the bottom of little survey piece 19 is provided with probe 20, and four groups of probes 20 can, satisfies the device four-wire test to the printed circuit board.
Working principle: when the DCR specific embedded test fixture is used, an external power supply is firstly connected, an embedded test board 7 and a central test board 8 with proper sizes are taken out according to the size of a printed circuit board which is required to be tested at present, the embedded test board 7 and the central test board 8 are installed on a test disc 5 through fixing bolts 6, then the printed circuit board is placed into grooves on the embedded test board 7 and the central test board 8 to be embedded, then a switch of a hydraulic cylinder 9 is firstly opened after the embedded test board is installed, a power source of a hydraulic pump is driven, the hydraulic pump presses hydraulic oil into the hydraulic cylinder 9 to drive a hydraulic rod 10 to lift, a probe 20 under a point test block 19 is close to the surface of the printed circuit board, meanwhile, the switch of an electric slide rail 17 and an electric slide block 18 is opened, the probe 20 is matched for positioning, the test point of the probe 20 is freely adjusted, the resistance test of a specified test point on the circuit board is met, then the probe 20 is lowered to be contacted with the surface of the printed circuit board, the current of the current point is tested, the tested current is transmitted through the current converter 14, the circuit detector 12 detects the resistance value, a detector can directly observe the change of the resistance value at the moment to perform different point resistance tests, thus the adjacent network pairing is realized, the pairing requirement of the nearest line in the tested network point is met, after the current point resistance of the printed circuit board is detected, the positioning point and the printed circuit board are not required to be replaced, the switch of the driving motor 3 can be opened, the driving motor 3 drives the test board 5 to rotate through the transmission rod 4, the embedded test board 7 on the test board 5 drives the internal printed circuit board to follow the conversion position, thus the probe 20 is not required to be moved to meet the test work of a plurality of printed circuit boards, and finally after the test work of all the printed circuit boards is finished according to the operation, the switch of the driving motor 3 is closed, the switch of the hydraulic cylinder 9 is closed, the switches of the electric sliding rail 17 and the electric sliding block 18 are closed, and the external power supply is cut off when the electric sliding rail is not used for a long time, wherein the driving motor 3 is of the type: YE2-132S-4, the model of the hydraulic cylinder 9 is: CDM2B25, model number of the circuit detector 12 is: KH4100, model number of current transformer 14 is: LM2917MX-8, model of electric telescopic handle 15 is: YS-NZ100-12A, the model of electric slide rail 17 is: LWX60, model of electric slider 18 is: the FSK30 can finish the using process of the DCR specific embedded test fixture.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a DCR specific embedding test tool, includes organism (1), its characterized in that: the utility model discloses a test device for the electric power of the engine, including organism (1), backplate (2) are fixed mounting in the top of organism (1), the bottom of organism (1) is provided with driving motor (3), the one end fixed mounting of driving motor (3) has transfer line (4), the other end fixed mounting of transfer line (4) has test dish (5), the top of test dish (5) is run through there is fixing bolt (6), the one end swing joint of fixing bolt (6) has embedding testboard (7), the place ahead of embedding testboard (7) is provided with central testboard (8), the top of organism (1) is provided with pneumatic cylinder (9), the inside swing joint of pneumatic cylinder (9) has hydraulic stem (10), the one end fixed mounting of hydraulic stem (10) has support frame (11), the outside of support frame (11) is provided with electric telescopic handle (15), the one end fixed mounting of electric telescopic handle (15) has locating plate (16), the bottom of locating plate (16) is provided with electric slide rail (17).
2. The DCR specific embedded test fixture according to claim 1, wherein the test disc (5) and the machine body (1) form a rotating structure through a transmission rod (4), and the center line of the transmission rod (4) is matched with the center line of the test disc (5).
3. The DCR specific embedded test fixture according to claim 1, wherein the embedded test board (7) is movably connected with the test board (5) through a fixing bolt (6), and the embedded test boards (7) are distributed on the test board (5) at equal intervals.
4. The DCR specific embedded test fixture according to claim 1, wherein the supporting frame (11) and the machine body (1) form a lifting structure through a hydraulic rod (10), and the hydraulic rod (10) and the hydraulic cylinder (9) are vertically distributed.
5. The DCR specific embedded test fixture according to claim 1, wherein a circuit detector (12) is arranged above the supporting frame (11), one end of the circuit detector (12) is fixedly provided with a connecting wire (13), and the other end of the connecting wire (13) is fixedly provided with a current converter (14).
6. The DCR specific embedded test fixture according to claim 1, wherein the positioning plate (16) and the supporting frame (11) form a telescopic structure through an electric telescopic rod (15), and the electric telescopic rod (15) is symmetrically arranged with a central axis of the supporting frame (11).
7. The DCR specific embedded test jig according to claim 1, wherein an electric sliding block (18) is movably connected to the outside of the electric sliding rail (17), a spot measurement block (19) is fixedly installed at one end of the electric sliding block (18), and a probe (20) is arranged at the bottom of the spot measurement block (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322726956.7U CN221039237U (en) | 2023-10-11 | 2023-10-11 | DCR specific embedded test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322726956.7U CN221039237U (en) | 2023-10-11 | 2023-10-11 | DCR specific embedded test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221039237U true CN221039237U (en) | 2024-05-28 |
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ID=91172770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322726956.7U Active CN221039237U (en) | 2023-10-11 | 2023-10-11 | DCR specific embedded test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221039237U (en) |
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2023
- 2023-10-11 CN CN202322726956.7U patent/CN221039237U/en active Active
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