CN115792560A - PCB (printed circuit board) test fixture - Google Patents
PCB (printed circuit board) test fixture Download PDFInfo
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- CN115792560A CN115792560A CN202111064300.2A CN202111064300A CN115792560A CN 115792560 A CN115792560 A CN 115792560A CN 202111064300 A CN202111064300 A CN 202111064300A CN 115792560 A CN115792560 A CN 115792560A
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- supporting seat
- pcb
- square frame
- test
- top plate
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- 238000012360 testing method Methods 0.000 title claims abstract description 62
- 230000005540 biological transmission Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 3
- 229910001021 Ferroalloy Inorganic materials 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 2
- 238000013522 software testing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The invention relates to a PCB circuit board test fixture, which belongs to the technical field of test fixtures and comprises a supporting seat, wherein the upper end of the supporting seat is provided with a top plate, four corners between the top plate and the supporting seat are respectively provided with a supporting column, the lower end of the top plate is fixedly provided with a pair of H-shaped rails which are distributed left and right, and a plurality of cross beams which are distributed front and back are connected below the two H-shaped rails in a sliding manner; two promotion holders of hydraulic telescoping rod so that with the PCB board centre gripping steadily in the recess, unscrew the bolt and rotate the screw rod so that adjust the position of each test head, the motor drives the square frame upset and realizes the upset to PCB board just reverse side, the electro-magnet is so that stabilize with the square frame after overturning, need not the reverse side that the PCB board just can test the PCB board of manual upset, it is not convenient for stabilize and the upset with the PCB board centre gripping to have solved current PCB circuit board test fixture, be not convenient for adjust the position of test head, work efficiency is reduced, lead to the inconvenient problem of test.
Description
Technical Field
The invention relates to a PCB (printed circuit board) test fixture, and belongs to the technical field of test fixtures.
Background
The PCB is called a printed circuit board, also called a printed circuit board, which is a support body of electronic components and a carrier connected with each other, and is called a "printed" circuit board because it is manufactured by electronic printing. The jig is mainly used as a tool for assisting in controlling positions or actions (or both), the open-short circuit fault position of the PCB can be quickly tested through the jig, a manufacturer can conveniently carry out delivery test on the PCB and overhaul the PCB by a maintenance master, and the jig plays a huge promoting role in the aspects of the access, short circuit and open circuit test of the PCB.
At present, in the test process of going on, short and breaking circuit to the PCB board, be not convenient for stabilize the PCB board and put, when test head and PCB board contact, lead to the PCB board to take place to shift easily for test head can't aim at the test point on the PCB board and lead to the mistesting, and the PCB board still must be manual upset after the front test and test the reverse side once, and the test is very inconvenient, has reduced efficiency of software testing.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art, and provide a PCB testing jig, which solves the problems that the conventional PCB testing jig is inconvenient to clamp and turn a PCB stably and conveniently, the position of a testing head is inconvenient to adjust, the working efficiency is reduced, and the testing is inconvenient.
The technical scheme adopted by the invention for solving the technical problems is as follows: a PCB circuit board test fixture comprises a supporting seat;
a top plate is arranged at the upper end of the supporting seat, supporting columns are arranged at four corners between the top plate and the supporting seat, a pair of I-shaped rails which are distributed left and right is fixed at the lower end of the top plate, a plurality of cross beams which are distributed front and back are arranged below the two I-shaped rails, a sliding cavity is formed in the middle of each cross beam, and at least three concave blocks which are distributed left and right are connected to the lower end of each cross beam in a sliding mode;
a screw and a hollow solenoid are arranged between the two adjacent front and back beams, the screw is positioned in the adjacent hollow solenoid and is in threaded connection with the hollow solenoid, and the head end of the screw and the tail end of the hollow solenoid are respectively in rotary connection with the adjacent beams;
the supporting seat is inboard and be located four be provided with the square frame between the support column, sliding connection has a pair of holder that is front and back distribution between the both ends about the square frame is inboard, two holder inner all opens flutedly.
In a preferred technical scheme of the invention, a plurality of uniformly arranged ports are arranged at the upper end of the top plate, a test head is arranged at the lower end of each concave block, the ports are respectively connected with each test head through leads, and the test heads are positioned among the four support columns.
In a preferred technical scheme of the invention, the upper ends of the support columns are respectively connected with four corners of the top plate in a sliding manner, the lower ends of the support columns are respectively fixedly connected with four corners of the support base, and the I-shaped rails and the cross beams are respectively positioned among the four support columns.
In a preferred technical scheme of the invention, the sliding cavity is located between the I-shaped rail and the concave blocks, the sliding cavity is located above and inside each concave block on the left and right horizontal lines, a bolt is in threaded connection between the front end and the rear end of each concave block on the left and right horizontal lines, and the middle end of the bolt penetrates through the corresponding sliding cavity and is movably connected with the sliding cavity.
In a preferred technical scheme of the invention, a pair of hydraulic telescopic rods II distributed left and right are fixed at the upper end and the lower end of each of the two clamping pieces, the tail ends of the hydraulic telescopic rods in the same horizontal line are respectively and fixedly connected with the upper end and the lower end of the square frame, a pair of electromagnets distributed left and right are respectively installed at the upper end of the supporting seat and positioned at the front side and the rear side of the square frame, the electromagnets are positioned between the left supporting column and the right supporting column, and the square frame is made of iron alloy.
In a preferred technical scheme of the invention, the outer end of each supporting column is provided with a first hydraulic telescopic rod, and the upper end and the lower end of each first hydraulic telescopic rod are respectively fixedly connected with four corners of the top plate and the supporting seat.
In a preferred technical scheme of the invention, the left end and the right end of the square frame are both rotatably connected with rotating shafts, the middle ends of the two rotating shafts are respectively rotatably connected with the left side and the right side of the upper end of the supporting seat, the right end of the rotating shaft at the right end is in transmission connection with a motor arranged at the upper end of the supporting seat, and the motor is positioned between the front supporting column and the rear supporting column at the right side.
In a preferred technical scheme of the invention, the lower ends of the I-shaped rails at the upper ends of the cross beams at the rear side are fixedly connected, and the lower ends of the I-shaped rails at the upper ends of the rest cross beams are connected in a sliding manner.
Compared with the prior art, the invention has the following beneficial effects:
the second hydraulic telescopic rod pushes the clamping piece so as to clamp and stably fix the PCB in the groove, the bolts are unscrewed and the screw rod is rotated so as to adjust the position of each test head, and the first hydraulic telescopic rod can slide the top plate up and down along the support column, so that the test head is aligned to the upper end of the PCB so as to be convenient to test;
the motor drives the square frame upset and realizes the upset to PCB board just reverse side, and the electro-magnet is in order to stabilize the square frame after will overturning, need not the reverse side that the PCB board just can be tested to manual upset PCB board, and convenient test has still improved efficiency of software testing.
Drawings
FIG. 1 is a schematic view of the overall external structure of the present invention;
FIG. 2 is an overall bottom view of the present invention;
FIG. 3 is a schematic view of an arrangement of I-rails and cross-beams according to the present invention;
FIG. 4 is an enlarged view of a portion of structure A of the present invention;
FIG. 5 is an enlarged view of a portion of structure B of the present invention;
fig. 6 is a partially enlarged view of structure C of the present invention.
In the figure: the test device comprises a support seat 1, a hydraulic telescopic rod I2, a top plate 3, a port 4, a support column 5, an I-shaped rail 6, a cross beam 7, a screw rod 8, a hollow solenoid 9, a sliding cavity 10, a concave block 11, a test head 12, a hydraulic telescopic rod II 13, a clamping piece 14, a groove 15, a square frame 16, an electromagnet 17, a motor 18, a rotating shaft 19 and a bolt 20.
Detailed Description
Referring to fig. 1-6, the present invention provides a technical solution: a PCB circuit board test fixture comprises a supporting seat 1;
a top plate 3 is arranged at the upper end of the supporting seat 1, supporting columns 5 are arranged at four corners between the top plate 3 and the supporting seat 1, a pair of I-shaped rails 6 which are distributed left and right is fixed at the lower end of the top plate 3, a plurality of cross beams 7 which are distributed front and back are arranged below the two I-shaped rails 6, a sliding cavity 10 is formed in the middle of each cross beam 7, and at least three concave blocks 11 which are distributed left and right are connected to the lower end of each cross beam 7 in a sliding mode;
a screw 8 and a hollow solenoid 9 are arranged between the two adjacent front and back beams 7, the screw 8 is positioned inside the adjacent hollow solenoid 9 and is in threaded connection with the hollow solenoid 9, and the head end of the screw 8 and the tail end of the hollow solenoid 9 are respectively in rotary connection with the adjacent beams 7;
a square frame 16 is arranged on the inner side of the supporting seat 1 and between the four supporting columns 5, a pair of clamping pieces 14 which are distributed in the front-back direction are connected between the left end and the right end of the inner side of the square frame 16 in a sliding mode, and grooves 15 are formed in the inner ends of the two clamping pieces 14;
a pair of hydraulic telescopic rods 13 distributed left and right are fixed at the upper end and the lower end of each clamping piece 14, the tail end of each hydraulic telescopic rod 13 on the same horizontal line in the front and the back is fixedly connected with the upper end and the lower end of a square frame 16 respectively, a pair of electromagnets 17 distributed left and right are installed at the upper end of the supporting seat 1 and at the front side and the back side of the square frame 16 respectively, the electromagnets 17 are located between the left supporting column 5 and the right supporting column 5, the square frame 16 is made of iron alloy, a PCB to be tested is placed between the front clamping piece 14 and the back clamping piece 14 in the square frame 16, the hydraulic telescopic rods 13 push the clamping pieces 14, the clamping pieces 14 are tightly leaned against the front end and the back end of the PCB, so that the clamping pieces 14 clamp the PCB firmly in the grooves 15, the grooves 15 increase the friction force of the clamping pieces 14 in contact with the PCB, the grooves 15 can facilitate the clamping of the PCB between the front clamping piece 14 and the back clamping piece 14, the electromagnets 17 are electrified to attract the square frame 16, and the electromagnets 17 firmly place the square frame 16 on the supporting seat 1;
the sliding cavity 10 is positioned between the I-shaped rail 6 and the concave block 11, the sliding cavity 10 is positioned above the inner part between the concave blocks 11 on the same horizontal line left and right, the bolts 20 are in threaded connection between the front and back ends of each concave block 11 on the same horizontal line left and right, the middle ends of the bolts 20 penetrate through the corresponding sliding cavity 10 and are movably connected with the corresponding sliding cavity, the bolts 20 are unscrewed so that the upper end of the concave block 11 can slide back and forth left and right at the lower end of the cross beam 7, meanwhile, the bolts 20 can slide left and right in the sliding cavity 10, the test head 12 moves left and right along with the left and right movement of the concave blocks 11, the concave block 11 adjusts the left and right movement position of the test head 12, the lower ends of the I-shaped rails 6 at the upper ends of the cross beams 7 at the rear side are fixedly connected, the lower ends of the I-shaped rails 6 at the upper ends of the rest of the cross beams 7 are in sliding connection, the last cross beam 7 is used as a reference, the screw 8 is rotated along the inner wall of the hollow screw tube 9, the rotating screw rod 8 moves back and forth on the inner wall of the hollow solenoid 9, the distance that the screw rod 8 extends out of the hollow solenoid 9 is changed, the screw rod 8 and the hollow solenoid 9 drive two cross beams 7 which are adjacent front and back to slide back and forth along the lower end of an I-shaped rail 6 so as to adjust the front and back positions of the test head 12, the upper ends of the support columns 5 are respectively connected with four corners of a top plate 3 in a sliding manner, the lower ends of the support columns 5 are respectively fixedly connected with four corners of a support seat 1, the I-shaped rail 6 and the cross beams 7 are positioned between the four support columns 5, the outer end of each support column 5 is provided with a hydraulic telescopic rod I2, the upper end and the lower end of each hydraulic telescopic rod I2 are respectively fixedly connected with the four corners of the top plate 3 and the support seat 1, the top plate 3 can slide up and down along the support columns 5 by the hydraulic telescopic rods I2, and the test head 12 is convenient to be aligned with the upper end of a PCB board for testing;
after the front side of the PCB is tested by the test head 12, the top plate 3 is lifted along the support columns 5 by the first hydraulic telescopic rod 2, the test head 12 is far away from the PCB and powers off the electromagnet 17, the left end and the right end of the square frame 16 are both rotatably connected with the rotating shafts 19, the middle ends of the two rotating shafts 19 are respectively rotatably connected with the left side and the right side of the upper end of the support seat 1, the right end of the rotating shaft 19 at the right end is in transmission connection with the motor 18 arranged at the upper end of the support seat 1, the motor 18 is positioned between the front support column 5 and the rear support column 5 at the right side, the rotating shaft 19 at the right end is driven by the motor 18 to rotate, the square frame 16 is driven by the rotating shaft 19 at the right end to turn over at the upper end of the support seat 1, so that the front side and the rear side of the PCB are turned over by the square frame 16, the electromagnet 17 is electrified again to attract the front end and the rear end of the square frame 16, the electromagnet 17 is convenient to stabilize the turned over, the back side of the PCB can be tested without manually turned over, the test is convenient, and the test efficiency is also improved;
a plurality of is evenly arranged's port 4 is installed to roof 3 upper end, and test head 12 is all installed to every concave block 11 lower extreme, and port 4 passes through the wire with every test head 12 respectively and is connected, and test head 12 is located between four support columns 5, is convenient for connect test equipment through port 4, and test head 12 feeds back the signal of testing to test equipment from port 4.
Claims (8)
1. The utility model provides a PCB circuit board test fixture, includes supporting seat (1), its characterized in that:
a top plate (3) is arranged at the upper end of the supporting seat (1), supporting columns (5) are arranged at four corners between the top plate (3) and the supporting seat (1), a pair of I-shaped rails (6) which are distributed left and right are fixed at the lower end of the top plate (3), a plurality of cross beams (7) which are distributed front and back are arranged below the position between the two I-shaped rails (6), a sliding cavity (10) is formed in the middle of each cross beam (7), and at least three concave blocks (11) which are distributed left and right are connected to the lower end of each cross beam (7) in a sliding mode;
a screw rod (8) and a hollow solenoid (9) are arranged between the two adjacent front and back beams (7), the screw rod (8) is positioned inside the adjacent hollow solenoid (9) and is in threaded connection with the hollow solenoid, and the head end of the screw rod (8) and the tail end of the hollow solenoid (9) are respectively in rotary connection with the adjacent beams (7);
the supporting seat is characterized in that a square frame (16) is arranged between the supporting columns (5) and on the inner side of the supporting seat (1), a pair of clamping pieces (14) distributed front and back are connected between the left end and the right end of the inner side of the square frame (16) in a sliding mode, and grooves (15) are formed in the inner ends of the clamping pieces (14).
2. The PCB testing jig of claim 1, wherein: a plurality of port (4) that are align to grid are installed to roof (3) upper end, every test head (12) are all installed to concave piece (11) lower extreme, port (4) respectively with every test head (12) pass through the wire and are connected, test head (12) are located four between support column (5).
3. The PCB testing jig of claim 1, wherein: support column (5) upper end respectively with roof (3) four corners sliding connection, support column (5) lower extreme respectively with supporting seat (1) four corners fixed connection, I-shaped rail (6) and crossbeam (7) all are located four between support column (5).
4. The PCB testing jig of claim 1, wherein: smooth chamber (10) are located between I-shaped rail (6) and concave piece (11), smooth chamber (10) are located about every of same water flat line interior top between concave piece (11), about every of same water flat line equal threaded connection has bolt (20) between both ends around concave piece (11), bolt (20) middle-end runs through to corresponding inside and rather than swing joint of smooth chamber (10).
5. The PCB testing jig of claim 1, wherein: two both ends all are fixed with a pair of hydraulic telescoping rod two (13) that are about distribution about holder (14), the same water flat line every around, hydraulic telescoping rod two (13) tail ends respectively with both ends fixed connection about square frame (16), both sides all install a pair of electro-magnet (17) that are about distribution around supporting seat (1) upper end and lie in square frame (16), electro-magnet (17) are located about two between support column (5), the material of square frame (16) is the ferroalloy.
6. The PCB testing jig of claim 1, wherein: every support column (5) outer end all is provided with hydraulic telescoping rod (2), four hydraulic telescoping rod (2) upper and lower both ends respectively with the four corners fixed connection of roof (3) and supporting seat (1).
7. The PCB testing jig of claim 1, wherein: the left end and the right end of the square frame (16) are rotatably connected with rotating shafts (19), the middle ends of the rotating shafts (19) are rotatably connected with the left side and the right side of the upper end of the supporting seat (1) respectively, the right end of the rotating shaft (19) is in transmission connection with a motor (18) installed at the upper end of the supporting seat (1), and the motor (18) is located between the front supporting column and the rear supporting column on the right side.
8. The PCB testing jig of claim 1, wherein: the lower ends of the I-shaped rails (6) at the upper ends of the cross beams (7) on the rear side are fixedly connected, and the lower ends of the I-shaped rails (6) at the upper ends of the other cross beams (7) are in sliding connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111064300.2A CN115792560A (en) | 2021-09-10 | 2021-09-10 | PCB (printed circuit board) test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111064300.2A CN115792560A (en) | 2021-09-10 | 2021-09-10 | PCB (printed circuit board) test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115792560A true CN115792560A (en) | 2023-03-14 |
Family
ID=85417214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111064300.2A Pending CN115792560A (en) | 2021-09-10 | 2021-09-10 | PCB (printed circuit board) test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115792560A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117092490A (en) * | 2023-10-09 | 2023-11-21 | 深圳市凌科凯特电子有限公司 | Automatic detection jig suitable for PCB |
-
2021
- 2021-09-10 CN CN202111064300.2A patent/CN115792560A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117092490A (en) * | 2023-10-09 | 2023-11-21 | 深圳市凌科凯特电子有限公司 | Automatic detection jig suitable for PCB |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20230314 |
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| WD01 | Invention patent application deemed withdrawn after publication |