CN114113976A - PCBA circuit board multinomial function test device - Google Patents
PCBA circuit board multinomial function test device Download PDFInfo
- Publication number
- CN114113976A CN114113976A CN202111309907.2A CN202111309907A CN114113976A CN 114113976 A CN114113976 A CN 114113976A CN 202111309907 A CN202111309907 A CN 202111309907A CN 114113976 A CN114113976 A CN 114113976A
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- circuit board
- pcba circuit
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- pcba
- fixedly connected
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- 238000012360 testing method Methods 0.000 title claims abstract description 42
- RVCKCEDKBVEEHL-UHFFFAOYSA-N 2,3,4,5,6-pentachlorobenzyl alcohol Chemical compound OCC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl RVCKCEDKBVEEHL-UHFFFAOYSA-N 0.000 title claims description 53
- 239000011111 cardboard Substances 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 230000007306 turnover Effects 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 description 6
- 230000007547 defect Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011990 functional testing Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
- G01R31/2806—Apparatus therefor, e.g. test stations, drivers, analysers, conveyors
- G01R31/2808—Holding, conveying or contacting devices, e.g. test adapters, edge connectors, extender boards
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
- G01R31/2806—Apparatus therefor, e.g. test stations, drivers, analysers, conveyors
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Engineering & Computer Science (AREA)
- Tests Of Electronic Circuits (AREA)
Abstract
The invention discloses a device for testing multiple functions of a PCBA (printed circuit board assembly), which relates to the technical field of PCBA processing, and is inconvenient to position the PCBA during testing at present, after one side of the PCBA is tested, the other side of the PCBA needs to be turned over manually. This many item function test device of PCBA circuit board, when testing the PCBA circuit board, can conveniently fix the PCBA circuit board for the location, and can fix the PCBA circuit board of different sizes, make its in-process at the test, the difficult emergence condition of shifting of PCBA circuit board.
Description
Technical Field
The invention relates to the technical field of PCBA circuit board processing, in particular to a PCBA circuit board multi-function testing device.
Background
The PCBA circuit board is also called as a printed circuit board, and a printed circuit board, is an important electronic component, is a support body of an electronic element, is a provider of electronic component circuit connection, is called as a printed circuit board because the PCBA circuit board is manufactured by adopting an electronic printing technology, the electronic elements are interconnected by directly connecting electric wires to form a complete circuit before the occurrence of the printed circuit board, and when the PCBA circuit board is produced, in order to ensure the quality of the PCBA circuit board, the PCBA circuit board needs to be subjected to multi-function test work.
However, the following defects exist when the PCBA circuit board is subjected to multiple functional tests at present:
1. during testing, the PCBA circuit board is inconvenient to position, so that the PCBA circuit board is easy to shift in the testing process;
2. after the test of one side of PCBA circuit board is accomplished, need the manual work to give the upset with the another side of PCBA circuit board, very trouble has increased artifical intensity of labour.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a device for testing multiple functions of a PCBA circuit board, which solves the problems that the PCBA circuit board is inconvenient to position during testing at present, and the other side of the PCBA circuit board needs to be turned over manually after one side of the PCBA circuit board is tested.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a multiple function test device of PCBA circuit board, includes the workstation, the equal slidable mounting in both sides upper surface of workstation has the riser, two the level is provided with the spacing groove between the upside of riser, the front side upper surface of workstation is provided with locating component.
The locating component comprises limiting plates which are respectively and vertically connected to the upper surfaces of the two sides of the workbench, a frame plate is connected between the opposite sides of the limiting plates in a rotating mode, sliding grooves are formed in the front side and the rear side of the inside of the frame plate, two sliding plates are connected between the inside of the sliding grooves in a horizontally symmetrical sliding mode, two clamping grooves are formed in the opposite sides of the sliding plates, adjusting components are arranged on the upper surfaces of the two sides of the frame plate, and turnover parts are arranged between the front sides of the limiting plates.
The adjusting part is including the L shaped plate, the inside upper surface vertical of L shaped plate rotates and is connected with the screw rod, the upper end surface cup joints and is provided with the slider, one side of slider rotates and is connected with the regulation pole, the lower extreme of adjusting the pole rotates and is connected with the movable block, the downside fixed connection of movable block is in one side upper surface of slide.
Preferably, the upper surface of the sliding block is provided with a threaded hole matched with the screw rod, and the screw rod is a stainless steel component.
Preferably, the lower end of the screw rod is rotatably connected with a bearing seat, and one end of the bearing seat is fixedly connected to the inner side of the L-shaped plate.
Preferably, the outer surface of the upper end of the screw rod is sleeved with a driven gear, the upper surface of one side of the L-shaped plate is rotatably provided with a handle, and one end of the handle is rotatably connected with a main gear which penetrates through the upper surface of the L-shaped plate.
Preferably, the master gear is meshed with the slave gear, and the diameter of the master gear is larger than that of the slave gear.
Preferably, the upper surface and the lower surface of the inside of one side of each clamping groove are obliquely and rotatably connected with clamping plates, the springs are fixedly connected to the opposite sides of the two clamping plates in a back-to-back mode, and the other ends of the two springs are fixedly connected to the upper surface and the lower surface of the inside of each clamping groove respectively.
Preferably, the two clamping plates are symmetrically arranged, the distance between one sides of the two clamping plates is larger than the thickness of the circuit board, and the distance between the other sides of the two clamping plates is smaller than the thickness of the circuit board.
Preferably, the upset piece is including setting up respectively in the connecting plate of two limiting plate front sides, two the one side that the connecting plate was mutually backed on the back all rotates and is connected with the toothed disc, two the one side that the limiting plate was mutually backed on the back all rotates and is connected with the disc corresponding with the frame plate, two fixed connection is in the both sides intermediate position department of frame plate respectively to the one end that the disc is relative, two the one side edge that the upside was mutually backed on the back of the body of toothed disc all rotates and is connected with the eccentric rod, two the other end of eccentric rod rotates respectively and connects in the one side edge that two disc rear sides were mutually backed on the back.
Preferably, two rotate between the relative one side of front side of connecting plate and be connected with the pivot, the both ends of pivot are rotated respectively and are passed two relative one sides of connecting plate and fixedly connected with drive gear, two drive gear is for the meshing with two toothed disc respectively, the surface intermediate position department of pivot cup joints and is provided with the worm cover, fixed surface installs the motor before the top of workstation, the output shaft fixedly connected with worm wheel of motor, the worm wheel meshes with the worm cover mutually.
Preferably, the inside slidable mounting of spacing groove has the draw runner piece, the one end fixedly connected with pneumatic cylinder of draw runner piece, the output shaft fixedly connected with test aircraft nose of pneumatic cylinder.
Advantageous effects
The invention provides a PCBA circuit board multi-function testing device, which has the following beneficial effects compared with the prior art:
1. this many item function test device of PCBA circuit board, when testing the PCBA circuit board, can conveniently fix the PCBA circuit board for the location, and can fix the PCBA circuit board of different sizes, make its in-process at the test, the difficult emergence condition of shifting of PCBA circuit board.
2. This many items of function test of PCBA circuit board device, the equal slope of surface rotates about one side is inside through the draw-in groove and is connected with the cardboard, the equal fixedly connected with spring in the one side that the opposite side of two cardboards carried on the back mutually, the other end difference fixed connection of two springs is the surface about the inside of draw-in groove, two cardboards set up for the symmetry, and the distance is greater than the thickness of circuit board between one side of two cardboards, the distance is less than the thickness of circuit board between the opposite side of two cardboards, after locating the PCBA circuit board, can increase its fastness, make the PCBA circuit board in the testing process, keep its stability, and then improve the accuracy nature of PCBA circuit board test.
3. This many item function test device of PCBA circuit board, after the one side test of PCBA circuit board finishes, can be automatic carry out upset work to the PCBA circuit board, give the upset with the another side of PCBA circuit board and come, be convenient for carry out test work to the another side, need not the manual work and overturn, and then improved work efficiency.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the positioning assembly of the present invention;
FIG. 3 is a schematic view of the structure of the adjustment assembly of the present invention;
FIG. 4 is a schematic view of the construction of the skateboard of the present invention;
fig. 5 is a schematic view of the structure of the flip member of the present invention.
In the figure: 1. a work table; 2. a vertical plate; 3. a limiting groove; 31. a slider block; 32. a hydraulic cylinder; 33. testing the machine head; 4. a positioning assembly; 41. a limiting plate; 42. a frame plate; 43. a chute; 44. a slide plate; 45. a card slot; 451. clamping a plate; 452. a spring; 46. an adjustment assembly; 461. an L-shaped plate; 462. a screw; 463. a slider; 464. adjusting a rod; 465. a movable block; 466. a bearing seat; 467. a handle; 468. a slave gear; 469. a main gear; 47. a turnover piece; 471. a connecting plate; 472. a gear plate; 473. a disc; 474. an eccentric rod; 475. a rotating shaft; 476. a transmission gear; 477. a worm sleeve; 478. a motor; 479. a worm gear.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: the utility model provides a many function test of PCBA circuit board device, includes workstation 1, the equal slidable mounting in both sides upper surface of workstation 1 has riser 2, and the level is provided with spacing groove 3 between the upside of two riser 2, and the front side upper surface of workstation 1 is provided with locating component 4, and the inside slidable mounting of spacing groove 3 has draw runner piece 31, and the one end fixedly connected with pneumatic cylinder 32 of draw runner piece 31, the output shaft fixedly connected with test aircraft nose 33 of pneumatic cylinder 32.
Referring to fig. 2-3, in the embodiment of the present invention, the positioning assembly 4 includes two limiting plates 41 vertically connected to the upper surfaces of two sides of the worktable 1, a frame plate 42 is rotatably connected between opposite surfaces of the two limiting plates 41, sliding slots 43 are respectively formed in the front and rear sides of the interior of the frame plate 42, two sliding plates 44 are horizontally and symmetrically slidably connected between the interiors of the two sliding slots 43, slots 45 are respectively formed in opposite sides of the two sliding plates 44, adjusting assemblies 46 are respectively disposed on the upper surfaces of two sides of the frame plate 42, a turning member 47 is disposed between the front sides of the two limiting plates 41, each adjusting assembly 46 includes an L-shaped plate 461, a screw 462 is vertically and rotatably connected to the upper surface of the L-shaped plate 461, a slider 463 is sleeved on the upper end outer surface of the screw 462, an adjusting rod 464 is rotatably connected to one side of the slider 463, a lower end of the adjusting rod 464 is rotatably connected to the lower end of the adjusting rod 464, and a lower side of the moving block 465 is fixedly connected to the upper surface of one side of the sliding plate 44, the upper surface of the sliding block 463 is provided with a threaded hole matched with the screw 462, the screw 462 is a stainless steel component, the screw 462 drives the sliding block 463 to move when rotating, the stainless steel component can play a role of rust prevention, the lower end of the screw 462 is rotatably connected with a bearing seat 466, one end of the bearing seat 466 is fixedly connected to the inner side of the L-shaped plate 461, the bearing seat 466 plays a role of stabilizing the screw 462, the outer surface of the upper end of the screw 462 is sleeved with a driven gear 468, the upper surface of one side of the L-shaped plate 461 is rotatably provided with a handle 467, one end of the handle 467 rotatably penetrates through the upper surface of the L-shaped plate 461 and is fixedly connected with a main gear 469, the main gear 469 is meshed with the driven gear 468, the diameter of the main gear 469 is larger than that of the driven gear 468, the main gear 469 drives the driven gear 468 to rotate when rotating, and plays a role of accelerating the driven gear 468.
Referring to fig. 4, in the embodiment of the invention, the upper and lower surfaces of the inside of one side of the card slot 45 are both obliquely and rotatably connected with the card plates 451, the opposite sides of the two card plates 451 are both fixedly connected with the springs 452, the other ends of the springs 452 are respectively and fixedly connected with the upper and lower surfaces of the inside of the card slot 45, the two card plates 451 are symmetrically arranged, the distance between one sides of the two card plates 451 is greater than the thickness of the circuit board, and the distance between the other sides of the two card plates 451 is less than the thickness of the circuit board, so as to firmly clamp the PCBA circuit board.
Referring to fig. 5, in the embodiment of the present invention, the turning member 47 includes connecting plates 471 respectively disposed at the front sides of two limiting plates 41, a gear plate 472 is rotatably connected to each of opposite sides of the two connecting plates 471, a circular disc 473 corresponding to the frame plate 42 is rotatably connected to each of opposite sides of the two limiting plates 41, opposite ends of the two circular discs 473 are respectively fixedly connected to the middle positions of two sides of the frame plate 42, an eccentric rod 474 is rotatably connected to each of opposite edges of the upper sides of the two gear plates 472, the other ends of the two eccentric rods 474 are respectively rotatably connected to opposite edges of the rear sides of the two circular discs 473, a rotating shaft 475 is rotatably connected between the opposite sides of the two connecting plates 471, two ends of the rotating shaft 475 respectively penetrate through the opposite sides of the two connecting plates 471 and are fixedly connected to transmission gears 476, the two transmission gears 476 are respectively engaged with the two gear plates 472, a worm sleeve 477 is sleeved at the middle position of the outer surface of the rotating shaft 475, a motor 478 is fixedly installed on the front surface above the workbench 1, a worm wheel 479 is fixedly connected to the output shaft of the motor 478, the worm wheel 479 is meshed with the worm sleeve 477, and the motor 478 is CH/V in model.
And those not described in detail in this specification are well within the skill of those in the art.
The working principle is as follows: the PCBA circuit board is placed in the frame plate 42, then the handle 467 is rotated, the handle 467 drives the main gear 469 to rotate, the main gear 469 drives the slave gear 468 meshed with the main gear 468 to rotate, the slave gear 468 drives the screw rod 462 to rotate, and the upper surface of the sliding block 463 is provided with a threaded hole matched with the screw rod 462, so that the screw rod 462 drives the sliding block 463 to move when rotating, the sliding block 463 can drive the sliding plate 44 to move along with the movement of the sliding block 463 under the movable connection of the adjusting rod 464, the PCBA circuit board is clamped in the clamping groove 45 on the sliding plate 44 by the sliding block 463, the PCBA circuit board is firmly clamped by the two clamping plates 451 under the elasticity of the spring 452, the firmness of the PCBA circuit board is ensured, and then the PCBA circuit board can be tested;
further, after the test of one side of the PCBA circuit board is finished, the power supply of the motor 478 is switched on, the motor 478 drives the worm wheel 479 to rotate, the worm wheel 479 drives the worm sleeve 477 which is meshed with the worm wheel to rotate, the worm sleeve 477 drives the rotating shaft 475 to rotate, the rotating shaft 475 drives the transmission gears 476 at two ends of the rotating shaft 475 to rotate, the transmission gears 476 drive the gear plate 472 which is meshed with the transmission gears to rotate, the gear plate 472 drives the eccentric rod 474 to do eccentric motion, the eccentric rod 474 drives the disc 473 to rotate, the disc 473 drives the frame plate 42 to rotate, the frame plate 42 is overturned for 180 degrees, the other side of the PCBA circuit board is overturned, and the other side of the PCBA circuit board is subjected to test work.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Claims (10)
1. The utility model provides a many function test of PCBA circuit board device, includes workstation (1), the equal slidable mounting in both sides upper surface of workstation (1) has riser (2), two the level is provided with spacing groove (3), its characterized in that between the upside of riser (2): a positioning component (4) is arranged on the upper surface of the front side of the workbench (1);
the positioning assembly (4) comprises limiting plates (41) which are respectively vertically connected to the upper surfaces of two sides of the workbench (1), a frame plate (42) is rotatably connected between the opposite surfaces of the two limiting plates (41), sliding grooves (43) are respectively formed in the front side and the rear side of the interior of the frame plate (42), two sliding plates (44) are horizontally and symmetrically connected between the interiors of the two sliding grooves (43) in a sliding manner, clamping grooves (45) are respectively formed in the opposite sides of the two sliding plates (44), adjusting assemblies (46) are respectively arranged on the upper surfaces of two sides of the frame plate (42), and a turnover part (47) is arranged between the front sides of the two limiting plates (41);
the adjusting assembly (46) comprises an L-shaped plate (461), a screw rod (462) is vertically and rotatably connected to the upper surface of the interior of the L-shaped plate (461), a sliding block (463) is sleeved on the outer surface of the upper end of the screw rod (462), an adjusting rod (464) is rotatably connected to one side of the sliding block (463), a movable block (465) is rotatably connected to the lower end of the adjusting rod (464), and the lower side of the movable block (465) is fixedly connected to the upper surface of one side of the sliding plate (44).
2. A PCBA circuit board multiple function testing arrangement according to claim 1, characterised in that: the upper surface of the sliding block (463) is provided with a threaded hole matched with the screw rod (462), and the screw rod (462) is a stainless steel component.
3. A PCBA circuit board multiple function testing arrangement according to claim 1, characterised in that: the lower end of the screw rod (462) is rotatably connected with a bearing seat (466), and one end of the bearing seat (466) is fixedly connected to the inner side of the L-shaped plate (461).
4. A PCBA circuit board multiple function testing arrangement according to claim 1, characterised in that: the outer surface of the upper end of the screw rod (462) is provided with a driven gear (468) in a sleeved mode, the upper surface of one side of the L-shaped plate (461) is rotatably provided with a handle (467), and one end of the handle (467) penetrates through the upper surface of the L-shaped plate (461) in a rotating mode and is fixedly connected with a main gear (469).
5. A PCBA circuit board multiple function test device as in claim 4, wherein: the main gear (469) is meshed with the slave gear (468), and the diameter of the main gear (469) is larger than that of the slave gear (468).
6. A PCBA circuit board multiple function testing arrangement according to claim 1, characterised in that: the surface all inclines to rotate about one side of draw-in groove (45) is inside to be connected with cardboard (451), two equal fixedly connected with spring (452) of the opposite side of cardboard (451) back on the back, two the other end of spring (452) is fixed connection respectively on the surface about the inside of draw-in groove (45).
7. A PCBA circuit board multiple function test device as in claim 6, wherein: the two clamping plates (451) are symmetrically arranged, the distance between one sides of the two clamping plates (451) is larger than the thickness of the circuit board, and the distance between the other sides of the two clamping plates (451) is smaller than the thickness of the circuit board.
8. A PCBA circuit board multiple function testing arrangement according to claim 1, characterised in that: upset piece (47) are including setting up in connecting plate (471) of two limiting plate (41) front sides respectively, two connecting plate (471) one side that backs on the back all rotates and is connected with gear disc (472), two limiting plate (41) one side that backs on the back all rotates and is connected with disc (473) corresponding with frame plate (42), two fixed connection respectively in the both sides intermediate position department of frame plate (42) is fixed connection respectively to the one end that disc (473) is relative, two the one side edge that the upside that backs on the back of gear disc (472) all rotates and is connected with eccentric rod (474), two the other end of eccentric rod (474) rotates respectively and connects in the one side edge that two discs (473) rear sides back mutually.
9. A PCBA circuit board multiple function testing arrangement according to claim 8, characterised in that: two it is connected with pivot (475) to rotate between the relative one side of front side of connecting plate (471), the both ends of pivot (475) are rotated respectively and are passed two relative one sides of connecting plate (471) and fixedly connected with drive gear (476), two drive gear (476) are the meshing with two toothed disc (472) respectively, the surface intermediate position department of pivot (475) cup joints and is provided with worm cover (477), fixed surface installs motor (478) before the top of workstation (1), the output shaft fixedly connected with worm wheel (479) of motor (478), worm wheel (479) mesh with worm cover (477) mutually.
10. A PCBA circuit board multiple function testing arrangement according to claim 1, characterised in that: the inside slidable mounting of spacing groove (3) has draw runner piece (31), the one end fixedly connected with pneumatic cylinder (32) of draw runner piece (31), the output shaft fixedly connected with test aircraft nose (33) of pneumatic cylinder (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111309907.2A CN114113976A (en) | 2021-11-07 | 2021-11-07 | PCBA circuit board multinomial function test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111309907.2A CN114113976A (en) | 2021-11-07 | 2021-11-07 | PCBA circuit board multinomial function test device |
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| CN114113976A true CN114113976A (en) | 2022-03-01 |
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| CN202111309907.2A Pending CN114113976A (en) | 2021-11-07 | 2021-11-07 | PCBA circuit board multinomial function test device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115122552A (en) * | 2022-05-13 | 2022-09-30 | 枣阳风神摩擦材料有限公司 | Drum type friction plate forming device and method |
| CN115343596A (en) * | 2022-07-29 | 2022-11-15 | 宜兴兴森快捷电子有限公司 | PCBA board function test system |
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