CN214409208U - Multi-mode PCBA test rack - Google Patents
Multi-mode PCBA test rack Download PDFInfo
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- CN214409208U CN214409208U CN202120437094.4U CN202120437094U CN214409208U CN 214409208 U CN214409208 U CN 214409208U CN 202120437094 U CN202120437094 U CN 202120437094U CN 214409208 U CN214409208 U CN 214409208U
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Abstract
The utility model discloses a multi-mode PCBA test rack, which is provided with a bottom support plate, a probe fixing plate, a product fixing plate and an upper pressing plate from bottom to top in sequence; the probe fixing plate is fixedly arranged on the bottom support plate; the product fixing plate is elastically arranged on the probe fixing plate; the upper pressing plate can be vertically and movably arranged above the product fixing plate; the bottom of the bottom supporting plate is provided with a plurality of test circuit boards, and the corresponding test circuit boards are connected with the probes through leads; the product fixing plate is used for fixing the PCBA to be tested, a testing hole array is arranged on the product fixing plate, and when the upper pressing plate presses the product fixing plate to move downwards, the upper end of the probe penetrates out of the testing hole array and is contacted with a testing point of the PCBA on the product fixing plate; the test rack does not need to customize a carrier plate again when the test plate is replaced, a plurality of test plates can be assembled simultaneously, switching is directly performed during testing, and the disassembly and the plate replacement are not needed.
Description
Technical Field
The utility model relates to an electronic product production technical field, concretely relates to multi-mode PCBA test rack.
Background
The PCBA testing machine frame is widely applied to the whole PCBA machining and manufacturing process and is mainly used for testing a PCBA board after SMT patches and DIP plug-ins are completed, wherein ICT testing is mainly used, namely the electrical conduction performance of the circuit board is tested through test points, and therefore whether the whole PCBA board is welded successfully or not is judged. The PCBA test rack is the primary tool used to assist in performing this test.
To different PCBAs, traditional PCBA test rack need the different test boards of collocation, is provided with the test circuit to this PCBA on the test board. Therefore, when newly developed PCBAs are manufactured on a production line, new test boards and PCBA carrier plates customized according to the new PCBAs are manufactured again; if the adjustment product is produced, the tester needs to disassemble the machine and replace the corresponding test board and PCBA carrier plate.
Thus, conventional PCBA test racks are inefficient.
SUMMERY OF THE UTILITY MODEL
In view of the above, the utility model provides a multi-mode PCBA test rack, this test rack need not customize the PCBA support plate again when changing survey test panel to can assemble a plurality of survey test panels simultaneously, a plurality of survey test panels can directly switch, need not tear open the machine and trade the board.
A multi-mode PCBA test rack is sequentially provided with a bottom supporting plate, a probe fixing plate, a product fixing plate and an upper pressing plate from bottom to top;
the probe fixing plate is fixedly arranged on the bottom support plate;
the product fixing plate is elastically arranged on the probe fixing plate;
the upper pressing plate can be vertically and movably arranged above the product fixing plate and is used for pressing the product fixing plate to move downwards;
the bottom of the bottom supporting plate is provided with a plurality of test circuit boards, each test circuit board corresponds to a PCBA workpiece, a plurality of groups of position-adjustable probes are arranged on the probe fixing plate, the probes are used for being conducted by touching test welding spots of the PCBA, and the corresponding test circuit boards are connected with the probes through wires;
the product fixing plate is used for fixing the PCBA to be tested, a testing hole array is arranged on the product fixing plate, and when the upper pressing plate presses the product fixing plate to move downwards, the upper end of the probe penetrates out of the testing hole array and is contacted with a testing point of the PCBA on the product fixing plate;
a circuit breaker is arranged between the test circuit board and the probe, when in test, the corresponding test circuit board is electrified, and the circuit breaker between the test circuit board and the probe is conducted; meanwhile, the corresponding circuit breakers of the other test circuit boards are in an off state.
Preferably, the body of the bottom support plate is provided with a threading hole array, and the upper part of the bottom support plate is provided with a wiring groove array;
the lead of the test circuit board penetrates out of the bottom support plate from the threading hole array and then is connected with the probe through the wiring groove array;
because more than one test circuit board, the wires between the test circuit board and the probe are more, and the wiring groove array consists of a plurality of criss-cross linear grooves and is used for wiring the wires of the test circuit board.
Preferably, the probe fixing plate is provided with a probe fixing hole array, and the lower part of the probe is detachably arranged in a probe fixing hole of the probe fixing hole array;
for example, three test circuit boards are installed in the rack, which correspond to three PCBA, and the number and position of the test welding spots of each PCBA are different, so that when installing, probes corresponding to the three test circuit boards need to be arranged at one time, and a proper hole position is found on the probe fixing hole array for installation.
Preferably, the probe is vertically arranged, the upper part of the probe is provided with a needle-shaped probe, the middle part of the probe is provided with an upper convex ring and a lower convex ring at intervals up and down, a probe spring is sleeved between the upper convex ring and the lower convex ring, and the bottom of the probe is provided with a bonding pad;
the probe fixing hole is a stepped hole, the upper part of the stepped hole is a large hole, and the lower part of the stepped hole is a small hole;
the middle part of the probe penetrates through the small hole, the upper convex ring is arranged in the large hole of the probe fixing hole, the lower convex ring is arranged at the lower part of the small hole, the outer diameters of the upper convex ring and the lower convex ring are larger than the aperture of the small hole, and the probe spring is arranged in the large hole;
the pad is used for welding and fixing a lead of the test circuit board;
after the probe is installed, the probe extends into a hole corresponding to the test hole array of the product fixing plate, when the PCBA is pressed by the upper pressing plate, the PCBA and the product fixing plate move downwards, and the test pad on the bottom surface of the PCBA is in contact conduction with the probe;
in order to protect the probe, the probe is elastically arranged in the probe fixing hole, and the probe spring plays a role of buffering.
Preferably, the test hole array corresponds to the probe fixing hole array one by one from top to bottom.
Preferably, the product fixing plate is also provided with a plurality of pluggable cushion blocks, and the bottoms of the cushion blocks are provided with at least two pins which can be inserted into the test hole arrays;
the thicknesses of the cushion blocks are equal, and the used materials are insulating materials;
the plurality of cushion blocks are supported at the position of a solderless position at the bottom of the PCBA board;
the cushion block is used for protecting the welding feet and the welding pads at the bottom of the PCBA, the position of the cushion block can be changed according to the figure of the bottom surface of the PCBA, and the cushion block is arranged on the part, without the welding feet and the welding pads, of the bottom surface of the PCBA, and the part is coated with green oil.
Preferably, the product fixing plate is also provided with a plurality of pluggable bar-shaped check blocks for fixing the PCBA plate;
the bottom of the strip-shaped check block is provided with at least two pins which can be inserted into the test hole array;
the length direction of the strip-shaped check blocks is arranged along the length direction or the width direction of the test hole array, and the PCBA is placed in a frame formed by the strip-shaped check blocks;
to different PCBA's area size, adjust the position of bar dog, accurate location when making PCBA put into.
Preferably, the edge of the bottom support plate extends upwards to form a plurality of fixing columns, the probe fixing plate is provided with corresponding first positioning holes, and the product fixing plate is provided with corresponding second positioning holes;
the fixing column sequentially penetrates through the first positioning hole and the second positioning hole;
a return spring is arranged between the first positioning hole and the second positioning hole and is used for returning after the product fixing plate sinks;
the top of fixed column is provided with adjusting nut, and fixed column top week side is provided with and adjusts nut matched with screw thread, and the clearance of probe fixed plate and product fixed plate can be adjusted to the rotatory adjusting nut.
Preferably, a plurality of isolation boxes are arranged at the bottom of the bottom support plate;
the top wall and the bottom wall of each isolation box are provided with at least one group of test circuit board slots for fixing the test circuit board;
the top wall of each isolation box is provided with a plurality of threading holes;
generally, the number of flying leads on the test circuit boards is large, so that the test circuit boards need to be spaced, and meanwhile, materials with electromagnetic shielding effects can be used as the materials of the wall plates of the isolation box, so that electromagnetic interference is reduced.
Preferably, the bottom of the upper pressure plate is provided with a plurality of pressing pins, the upper pressure plate is provided with an array of pressing pin fixing holes, and the tops of the pressing pins are inserted into the holes of the array of pressing pin fixing holes.
The utility model has the advantages that: a multi-mode PCBA test rack is sequentially provided with a bottom supporting plate, a probe fixing plate, a product fixing plate and an upper pressing plate from bottom to top; the probe fixing plate is fixedly arranged on the bottom support plate; the product fixing plate is elastically arranged on the probe fixing plate; the upper pressing plate can be vertically and movably arranged above the product fixing plate; the bottom of the bottom supporting plate is provided with a plurality of test circuit boards, and the corresponding test circuit boards are connected with the probes through leads; the product fixing plate is used for fixing the PCBA to be tested, a testing hole array is arranged on the product fixing plate, and when the upper pressing plate presses the product fixing plate to move downwards, the upper end of the probe penetrates out of the testing hole array and is contacted with a testing point of the PCBA on the product fixing plate; the test rack does not need to customize a carrier plate again when the test plate is replaced, a plurality of test plates can be assembled simultaneously, switching is directly performed during testing, and the disassembly and the plate replacement are not needed.
Drawings
The multi-mode PCBA test rack of the present invention will be further described with reference to the accompanying drawings.
Fig. 1 is the utility model discloses a multi-mode PCBA test rack's perspective view.
Fig. 2 is the utility model relates to a multi-mode PCBA test rack's test schematic diagram.
Fig. 3 is the structure explosion diagram of the multi-mode PCBA test rack of the present invention.
Fig. 4 is a perspective view of the bottom support plate.
Fig. 5 is a perspective view of the bottom support plate after the probe fixing plate is mounted thereon.
Fig. 6 is a perspective view of the bottom support plate after mounting the probe fixing plate and the product fixing plate.
FIG. 7 is a top view of the bottom support plate.
Fig. 8 is a perspective view of the probe.
In the figure:
1-bottom support plate, 11-test circuit board, 12-threading hole array, 13-wiring groove array, 2-probe fixing plate, 21-probe, 211-probe, 212-upper convex ring, 213-lower convex ring, 214-probe spring, 215-pad, 22-probe fixing hole array, 23-first positioning hole, 3-product fixing plate, 31-test hole array, 32-second positioning hole, 4-upper pressing plate, 41-pressing pin fixing hole array, 5-cushion block, 6-strip-shaped stop block, 7-fixing column, 71-reset spring, 72-adjusting nut, 8-isolation box, 81-test circuit board slot, 9-pressing pin and 01-PCBA board.
Detailed Description
The multi-mode PCBA test rack of the present invention will be further described with reference to FIGS. 1-8.
A multi-mode PCBA test rack is provided with a bottom support plate 1, a probe fixing plate 2, a product fixing plate 3 and an upper pressing plate 4 from bottom to top in sequence;
the probe fixing plate 2 is fixedly arranged on the bottom support plate 1;
the product fixing plate 3 is elastically arranged on the probe fixing plate 2;
the upper pressing plate 4 can be vertically and movably arranged above the product fixing plate 3, and the upper pressing plate 4 is used for pressing the product fixing plate 3 to move downwards;
the bottom of the bottom supporting plate 1 is provided with a plurality of test circuit boards 11, a plurality of groups of position-adjustable probes 21 are arranged on the probe fixing plate 2, and the corresponding test circuit boards 11 and the probes 21 are connected through leads;
the product fixing plate 3 is provided with a testing hole array 31, and when the upper pressing plate 4 presses the product fixing plate 3 to move downwards, the upper ends of the probes 21 penetrate out of the testing hole array 31 and are in contact with a testing point of a PCBA plate on the product fixing plate 3.
In this embodiment, the body of the bottom support plate 1 is provided with a threading hole array 12, and the upper part of the bottom support plate 1 is provided with a wiring groove array 13;
the lead of the test circuit board 11 passes through the threading hole array 12 and the bottom support plate 1, and then is connected to the probe 21 through the wiring groove array 13.
In this embodiment, the probe fixing plate 2 is provided with a probe fixing hole array 22, and the lower portion of the probe 21 is detachably mounted in the probe fixing hole of the probe fixing hole array 22.
In this embodiment, the probe 21 is vertically arranged, the needle-shaped probe 211 is arranged at the upper part of the probe 21, the upper convex ring 212 and the lower convex ring 213 are arranged at the middle part of the probe 21 at intervals up and down, the probe spring 214 is sleeved between the upper convex ring 212 and the lower convex ring 213, and the bottom of the probe 21 is provided with the bonding pad 215;
the probe fixing hole is a stepped hole, the upper part of the stepped hole is a large hole, and the lower part of the stepped hole is a small hole;
the middle part of the probe 21 penetrates through the small hole, the upper convex ring 212 is arranged in the large hole of the probe fixing hole, the lower convex ring 213 is arranged at the lower part of the small hole, the outer diameters of the upper convex ring 212 and the lower convex ring 213 are larger than the aperture of the small hole, and the probe spring 214 is arranged in the large hole;
the pads 215 are used for solder-fixing the wires of the test circuit board 11.
In this embodiment, the test hole arrays 31 correspond to the probe fixing hole arrays 22 one on top of the other.
In this embodiment, the product fixing plate 3 is further provided with a plurality of pluggable cushion blocks 5, and the bottoms of the cushion blocks 5 are provided with at least two pins which can be inserted into the test hole arrays 31;
the thicknesses of the cushion blocks 5 are equal, and the used material is an insulating material;
a plurality of spacers 5 are supported at solderless locations at the bottom of the PCBA board.
In this embodiment, the product fixing plate 3 is further provided with a plurality of pluggable bar-shaped stoppers 6 for fixing the PCBA plate;
the bottom of the strip-shaped block 6 is provided with at least two pins which can be inserted into the test hole array 31;
the long direction of bar dog 6 sets up along the long direction or the wide direction of test hole array 31, and the PCBA board is placed in the frame of constituteing by a plurality of bar dogs 6.
In this embodiment, the edge of the bottom supporting plate 1 extends upwards to form a plurality of fixing posts 7, the probe fixing plate 2 is provided with corresponding first positioning holes 23, and the product fixing plate 3 is provided with corresponding second positioning holes 32;
the fixing column 7 sequentially passes through the first positioning hole 23 and the second positioning hole 32;
a return spring 71 is arranged between the first positioning hole 23 and the second positioning hole 32, and the return spring 71 is used for returning after the product fixing plate 3 sinks;
the top of the fixed column 7 is provided with an adjusting nut 72, the periphery of the top of the fixed column 7 is provided with a thread matched with the adjusting nut 72, and the gap between the probe fixing plate 2 and the product fixing plate 3 can be adjusted by rotating the adjusting nut 72.
In this embodiment, the bottom of the bottom support plate 1 is provided with a plurality of isolation boxes 8;
the top wall and the bottom wall of each isolation box 8 are provided with at least one group of test circuit board slots 81 for fixing the test circuit boards 11;
the top wall of each isolation box 8 is provided with a plurality of threading holes.
In this embodiment, the bottom of the upper press plate 4 is provided with a plurality of press pins 9, the upper press plate 4 is provided with a press pin fixing hole array 41, and the tops of the press pins 9 are inserted into holes of the press pin fixing hole array 41.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.
Claims (10)
1. A multi-mode PCBA test rack is characterized in that a bottom support plate (1), a probe fixing plate (2), a product fixing plate (3) and an upper pressure plate (4) are sequentially arranged from bottom to top;
the probe fixing plate (2) is fixedly arranged on the bottom support plate (1);
the product fixing plate (3) is elastically arranged on the probe fixing plate (2);
the upper pressing plate (4) can be vertically and movably arranged above the product fixing plate (3), and the upper pressing plate (4) is used for pressing the product fixing plate (3) to move downwards;
the bottom of the bottom supporting plate (1) is provided with a plurality of test circuit boards (11), a plurality of groups of position-adjustable probes (21) are arranged on the probe fixing plate (2), and the corresponding test circuit boards (11) are connected with the probes (21) through leads;
be provided with test hole array (31) on product fixed plate (3), when upper press plate (4) oppression product fixed plate (3) move down, the upper end of probe (21) is followed test hole array (31) is worn out and is contacted with the test point that is located PCBA board on product fixed plate (3).
2. A multi-mode PCBA test rack according to claim 1, wherein the body of the base support plate (1) is provided with an array of threading holes (12), and the upper portion of the base support plate (1) is provided with an array of wiring slots (13);
and the lead of the test circuit board (11) penetrates out of the bottom support plate (1) from the threading hole array (12) and is connected with the probe (21) through the wiring groove array (13).
3. A multi-mode PCBA test rack according to claim 2, wherein the probe retaining plate (2) is provided with an array of probe retaining holes (22), and wherein lower portions of the probes (21) are removably mounted in the probe retaining holes of the array of probe retaining holes (22).
4. The multi-mode PCBA test rack as recited in claim 3, wherein the probe (21) is vertically arranged, the upper part of the probe (21) is provided with a needle-shaped probe head (211), the middle part of the probe (21) is provided with an upper convex ring (212) and a lower convex ring (213) at intervals up and down, a probe spring (214) is sleeved between the upper convex ring (212) and the lower convex ring (213), and the bottom of the probe (21) is provided with a bonding pad (215);
the probe fixing hole is a stepped hole, the upper part of the stepped hole is a large hole, and the lower part of the stepped hole is a small hole;
the middle part of the probe (21) penetrates through the small hole, the upper convex ring (212) is arranged in the large hole of the probe fixing hole, the lower convex ring (213) is arranged at the lower part of the small hole, the outer diameters of the upper convex ring (212) and the lower convex ring (213) are larger than the aperture of the small hole, and the probe spring (214) is arranged in the large hole;
the welding pad (215) is used for welding and fixing a lead of the test circuit board (11).
5. A multi-mode PCBA test rack as claimed in claim 4, in which the test hole arrays (31) correspond one above the other to the probe fixture hole arrays (22).
6. A multi-mode PCBA test rack as claimed in claim 5, wherein a plurality of pluggable spacers (5) are also provided on the product fixing plate (3), the bottoms of the spacers (5) being provided with at least two pins insertable into the test hole array (31);
the thicknesses of the cushion blocks (5) are equal, and the used materials are insulating materials;
the plurality of cushion blocks (5) are supported at the position of a solderless position at the bottom of the PCBA board.
7. A multi-mode PCBA test rack as claimed in claim 6, wherein the product fixing plate (3) is further provided with a plurality of pluggable bar-shaped stoppers (6) for fixing the PCBA plate;
the bottom of the strip-shaped stop block (6) is provided with at least two pins which can be inserted into the test hole array (31);
the long direction of bar dog (6) is followed the long direction or the wide direction setting of test hole array (31), and the PCBA board is placed in the frame of constituteing by a plurality of bar dogs (6).
8. The multi-mode PCBA test rack as in claim 7, wherein a plurality of fixing posts (7) extend upward from the edge of the bottom support plate (1), the probe fixing plate (2) is provided with corresponding first positioning holes (23), and the product fixing plate (3) is provided with corresponding second positioning holes (32);
the fixing column (7) sequentially penetrates through the first positioning hole (23) and the second positioning hole (32);
a return spring (71) is arranged between the first positioning hole (23) and the second positioning hole (32), and the return spring (71) is used for returning after the product fixing plate (3) sinks;
the top of fixed column (7) is provided with adjusting nut (72), fixed column (7) top week side be provided with adjusting nut (72) matched with screw, rotatory adjusting nut (72) can be adjusted the probe fixed plate (2) with the clearance of product fixed plate (3).
9. A multi-mode PCBA test rack according to claim 8, wherein the bottom of the bottom support plate (1) is provided with a plurality of spacer boxes (8);
the top wall and the bottom wall of each isolation box (8) are provided with at least one group of test circuit board slots (81) for fixing the test circuit board (11);
the top wall of each isolation box (8) is provided with a plurality of threading holes.
10. The multi-mode PCBA test rack as in claim 1, wherein the bottom of the upper platen (4) is provided with a plurality of press pins (9), the upper platen (4) is provided with an array of press pin fixing holes (41), and the tops of the press pins (9) are inserted into the holes of the array of press pin fixing holes (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120437094.4U CN214409208U (en) | 2021-02-26 | 2021-02-26 | Multi-mode PCBA test rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120437094.4U CN214409208U (en) | 2021-02-26 | 2021-02-26 | Multi-mode PCBA test rack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214409208U true CN214409208U (en) | 2021-10-15 |
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ID=78027994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120437094.4U Active CN214409208U (en) | 2021-02-26 | 2021-02-26 | Multi-mode PCBA test rack |
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| CN (1) | CN214409208U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117741409A (en) * | 2023-12-28 | 2024-03-22 | 苏州威尔菲特实业发展有限公司 | PCBA board testing arrangement with positioning mechanism with adjustable |
-
2021
- 2021-02-26 CN CN202120437094.4U patent/CN214409208U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117741409A (en) * | 2023-12-28 | 2024-03-22 | 苏州威尔菲特实业发展有限公司 | PCBA board testing arrangement with positioning mechanism with adjustable |
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