CN210323272U

CN210323272U - High-speed accurate four-wire PCB board testing arrangement

Info

Publication number: CN210323272U
Application number: CN201920928848.9U
Authority: CN
Inventors: 刘扬辉
Original assignee: Guangzhou Nansha Economic And Technological Development Zone Shengde Circuit Board Co Ltd
Current assignee: Guangzhou Nansha Economic And Technological Development Zone Shengde Circuit Board Co Ltd
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2020-04-14
Anticipated expiration: 2029-06-20

Abstract

The utility model discloses a high-speed accurate four-wire PCB board testing arrangement, including pedestal and roof, the roof is installed through the support column in the four corners department at pedestal top, the intermediate position department at roof top is equipped with first pneumatic cylinder, and the output of first pneumatic cylinder passes the roof, the output of first pneumatic cylinder is equipped with the clamp plate, the bottom of clamp plate is equipped with the faller, and the four corners department of faller bottom all is equipped with the test needle, one side at pedestal top is equipped with driving motor, and driving motor's output installs the disc, the top of disc is equipped with the standing groove, and the standing groove bottom is equipped with the heater strip, the opposite side at pedestal top is equipped with snatchs the subassembly; the utility model discloses a standing groove holds the PCB board, and it is rotatory to utilize driving motor to drive the disc, sends the PCB board in proper order to test under the test needle, and after the test was accomplished, snatch the subassembly and adsorb and hold the PCB board and send it out, and whole process need not artifical supplementary, and work efficiency is high.

Description

High-speed accurate four-wire PCB board testing arrangement

Technical Field

The utility model relates to a test equipment technical field especially relates to a high-speed accurate four-wire PCB board testing arrangement.

Background

In the existing PCB process, after the outer circuit is completed, it is usually necessary to detect whether the circuit is conducted or not and the resistance value is abnormal, and the existing testing apparatus mainly includes two types: the utility model provides a be two line testing arrangement, another kind is four-wire testing arrangement, because four-wire testing arrangement can enough test whether the circuit switches on, also can test the circuit resistance abnormal problem that leads to by the thick harmfully of copper simultaneously, and the precision can reach 1m omega, so use more extensively, among the prior art, when testing, generally need the workman manually to put into the device with the PCB board, the manual taking out after the test, relatively troublesome, work efficiency is low, and simultaneously, among the prior art, the probe is not stable enough during the test, test the deviation easily, and can not change external environment and test the PCB board, and external environment has certain influence to the numerical value of PCB board, this just causes test data not comprehensive enough, therefore, the utility model provides a high-speed accurate four-wire PCB board testing arrangement is in order to solve the problem that exists among the prior art.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a high-speed accurate four-wire PCB board testing arrangement, this high-speed accurate four-wire PCB board testing arrangement holds the PCB board through the standing groove, it is rotatory to utilize driving motor to drive the disc, send the PCB board to test under the test needle in proper order, after the test is accomplished, the rotating electrical machines drives the back shaft rotation, the telescopic link extension, the second pneumatic cylinder pushes down and makes the sucking disc adsorb the PCB board and send it out, whole process need not artifical supplementary, go on in succession, work efficiency is high.

In order to solve the problem, the utility model provides a high-speed accurate four-wire PCB board testing arrangement, including pedestal and roof, the four corners department at pedestal top all is equipped with the support column, and is equipped with the roof above the support column, the intermediate position department at roof top is equipped with first pneumatic cylinder, and the output of first pneumatic cylinder passes the roof, the output of first pneumatic cylinder is equipped with the clamp plate, the bottom of clamp plate is equipped with the faller, and the four corners department of faller bottom all is equipped with the test needle, one side at pedestal top is equipped with driving motor, and driving motor's output installs the disc, the top of disc is equipped with the standing groove, and the standing groove bottom be equipped with the heater strip in the disc, the opposite side at pedestal top is equipped with and snatchs the subassembly.

The further improvement lies in that: the top plate at the four corners of the first pneumatic cylinder is provided with a sliding sleeve, a sliding rod is movably mounted in the sliding sleeve, and the bottom of the sliding rod penetrates through the sliding sleeve and is connected to the top of the pressing plate.

The further improvement lies in that: one side on the roof is equipped with voltmeter and ampere meter, the both ends of voltmeter are connected to two through the wire test the needle, the ampere meter is connected to two in addition through the wire after establishing ties with the power test the needle.

The further improvement lies in that: the top of the disc is at least provided with four groups of the placing grooves, and the distances between the adjacent placing grooves are the same.

The further improvement lies in that: the grabbing component comprises a rotating motor and a supporting shaft, the output end of the rotating motor is provided with the supporting shaft, a telescopic rod is arranged on the supporting shaft, the output end of the telescopic rod is provided with a second pneumatic cylinder, and the output end of the second pneumatic cylinder is provided with a sucker.

The utility model has the advantages that: the utility model discloses a standing groove holds the PCB board, it is rotatory to utilize driving motor to drive the disc, send the PCB board in proper order to test under the test needle, the test is accomplished the back, the rotating electrical machines drives the back shaft rotation, the telescopic link extension, the second pneumatic cylinder pushes down and makes the sucking disc adsorb and live the PCB board and send it out, whole process need not artifical supplementary, go on in succession, high working efficiency, and when first pneumatic cylinder promoted clamp plate and faller and pushed down, utilize litter and sliding sleeve sliding fit, it is more stable to make the process of pushing down, avoid the test needle deviation, and four group's test needles and voltmeter, the ampere meter cooperation, the four-wire test, the test accuracy is high, can reach 1m omega, and simultaneously, it is equipped with the heater strip to place the tank bottom, can simulate the temperature environment when PCB board moves, make the test data univers.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a schematic view of the disc of the present invention.

Fig. 3 is a schematic view of the grabbing assembly of the present invention.

Wherein: 1. a pedestal; 2. a top plate; 3. a first pneumatic cylinder; 4. pressing a plate; 5. a needle plate; 6. a test pin; 7. a disc; 8. a placement groove; 9. heating wires; 10. a grasping assembly; 11. a sliding sleeve; 12. a slide rod; 13. a voltmeter; 14. an ammeter; 15. a rotating electric machine; 16. a support shaft; 17. a telescopic rod; 18. a second pneumatic cylinder; 19. and (4) sucking discs.

Detailed Description

In order to deepen the understanding of the present invention, the following embodiments will be combined to make the present invention do further details, and the present embodiment is only used for explaining the present invention, and does not constitute the limitation of the protection scope of the present invention.

According to fig. 1, 2 and 3, the embodiment provides a high-speed accurate four-wire PCB board testing device, which comprises a pedestal 1 and a top plate 2, wherein supporting columns are arranged at four corners of the top of the pedestal 1, the top plate 2 is arranged above the supporting columns, a first air cylinder 3 is arranged at the middle position of the top plate 2, the output end of the first air cylinder 3 penetrates through the top plate 2, a pressing plate 4 is arranged at the output end of the first air cylinder 3, a needle plate 5 is arranged at the bottom of the pressing plate 4, testing needles 6 are arranged at four corners of the bottom of the needle plate 5, a driving motor is arranged at one side of the top of the pedestal 1, the model of the driving motor is Y90S-2, a disc 7 is installed at the output end of the driving motor, a placing groove 8 is arranged at the top of the disc 7, heating wires 9 are arranged in the disc 7 at the bottom of the placing groove, during the use, place the PCB board in the standing groove 8, utilize driving motor to drive disc 7 rotatory, send the PCB board to under test needle 6 in proper order, first pneumatic cylinder 3 promotes clamp plate 4 and faller 5 and pushes down, makes test needle 6 contact PCB board test, and the back of testing utilizes to snatch subassembly 10 and snatchs the PCB board and take out.

3 four corners positions department of first pneumatic cylinder be equipped with sliding sleeve 11 on the roof 2, and movable mounting has litter 12 in the sliding sleeve 11, the bottom of litter 12 is run through sliding sleeve 11 is connected to the top of clamp plate 4 makes clamp plate 4 and faller 5 push down the process more stable, avoids test needle 6 deviation.

One side on the roof 2 is equipped with voltmeter 13 and ampere meter 14, voltmeter 13's both ends are connected to two through the wire test needle 6, ampere meter 14 is connected to two in addition through the wire after establishing ties with the power test needle 6, four groups of test needles 6 and voltmeter 13, the cooperation of ampere meter 14, four-wire test, the measuring accuracy is high, can reach 1m omega.

The top of disc 7 is equipped with six groups standing groove 8, and adjacent the distance between the standing groove 8 is the same, is convenient for a process to test multiunit PCB board.

Snatch subassembly 10 and include rotating electrical machines 15 and back shaft 16, rotating electrical machines 15's model is YNT-01, rotating electrical machines 15's output is equipped with back shaft 16, and is equipped with telescopic link 17 on the back shaft 16, telescopic link 17's output is equipped with second pneumatic cylinder 18, and second pneumatic cylinder 18's output is equipped with sucking disc 19, and after the test was accomplished, rotating electrical machines 15 drove back shaft 16 and rotates, and telescopic link 17 extends, and second pneumatic cylinder 18 pushes down and makes sucking disc 19 adsorb the PCB board and send out it.

The high-speed accurate four-wire PCB testing device contains the PCB through the placing groove 8, the disc 7 is driven by the driving motor to rotate, the PCB is sequentially sent to the testing needle 6 for testing, after the testing is finished, the rotating motor 15 drives the supporting shaft 16 to rotate, the telescopic rod 17 extends, the second pneumatic cylinder 18 presses downwards to enable the sucking disc 19 to suck the PCB and send the PCB out, the whole process is continuously carried out without manual assistance, the working efficiency is high, and when the first pneumatic cylinder 3 pushes the pressing plate 4 and the needle plate 5 to press downwards, the sliding rod 12 is in sliding fit with the sliding sleeve 11, so that the pressing process is more stable, the deviation of the testing needle 6 is avoided, and four groups of test needles 6 are matched with a voltmeter 13 and an ammeter 14, four-wire test is realized, the test precision is high and can reach 1m omega, meanwhile, the heating wires 9 are arranged at the bottom of the placing groove 8, so that the temperature environment of the PCB during operation can be simulated, and test data are comprehensive.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a high-speed accurate four-wire PCB board testing arrangement, includes pedestal (1) and roof (2), its characterized in that: the four corners department at pedestal (1) top all is equipped with the support column, and is equipped with roof (2) above the support column, the intermediate position department at roof (2) top is equipped with first pneumatic cylinder (3), and the output of first pneumatic cylinder (3) passes roof (2), the output of first pneumatic cylinder (3) is equipped with clamp plate (4), the bottom of clamp plate (4) is equipped with faller (5), and the four corners department of faller (5) bottom all is equipped with test needle (6), one side at pedestal (1) top is equipped with driving motor, and driving motor's output installs disc (7), the top of disc (7) is equipped with standing groove (8), and standing groove (8) bottom be equipped with heater strip (9) in disc (7), the opposite side at pedestal (1) top is equipped with and snatchs subassembly (10).

2. The high-speed accurate four-wire PCB testing device of claim 1, wherein: the top plate (2) at the four corners of the first pneumatic cylinder (3) is provided with a sliding sleeve (11), a sliding rod (12) is movably mounted in the sliding sleeve (11), and the bottom of the sliding rod (12) penetrates through the sliding sleeve (11) and is connected to the top of the pressing plate (4).

3. The high-speed accurate four-wire PCB testing device of claim 1, wherein: one side on roof (2) is equipped with voltmeter (13) and ampere meter (14), the both ends of voltmeter (13) are connected to two through the wire test needle (6), after ampere meter (14) and power are established ties, be connected to two in addition through the wire test needle (6).

4. The high-speed accurate four-wire PCB testing device of claim 1, wherein: the top of the disc (7) is at least provided with four groups of placing grooves (8), and the distances between the adjacent placing grooves (8) are the same.

5. The high-speed accurate four-wire PCB testing device of claim 1, wherein: snatch subassembly (10) and include rotating electrical machines (15) and back shaft (16), the output of rotating electrical machines (15) is equipped with back shaft (16), and is equipped with telescopic link (17) on back shaft (16), the output of telescopic link (17) is equipped with second pneumatic cylinder (18), and the output of second pneumatic cylinder (18) is equipped with sucking disc (19).