CN219676201U - Printed circuit board test fixture - Google Patents
Printed circuit board test fixture Download PDFInfo
- Publication number
- CN219676201U CN219676201U CN202320955561.1U CN202320955561U CN219676201U CN 219676201 U CN219676201 U CN 219676201U CN 202320955561 U CN202320955561 U CN 202320955561U CN 219676201 U CN219676201 U CN 219676201U
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- China
- Prior art keywords
- test
- plate
- mounting plate
- transverse rail
- sliding sleeve
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- 238000012360 testing method Methods 0.000 title claims abstract description 64
- 239000000523 sample Substances 0.000 claims abstract description 22
- 238000004140 cleaning Methods 0.000 claims abstract description 21
- 230000010405 clearance mechanism Effects 0.000 claims description 5
- 239000002245 particle Substances 0.000 abstract description 9
- 239000012535 impurity Substances 0.000 abstract description 8
- 238000001514 detection method Methods 0.000 abstract description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Tests Of Electronic Circuits (AREA)
Abstract
The utility model discloses a printed circuit board test fixture, which comprises a test frame body and a cleaning mechanism, wherein the test frame body comprises a workbench, a probe board and a vertical frame, the cleaning mechanism comprises a transverse rail, a mounting plate, cleaning strips, a sliding sleeve, connecting screws and limiting pieces, the transverse rail is horizontally fixed on the upper surface of the test frame body, the mounting plate is positioned on the left side of the workbench and is distributed along the Y-axis direction, the sliding sleeve and the connecting screws are arranged between the front end of the mounting plate and the transverse rail, and the cleaning strips are arranged on the lower surface of the mounting plate; according to the utility model, the test frame body, the workbench and the cleaning mechanism are combined, so that the upper surface of the workbench can be cleaned by friction, and impurity particles attached to the surface are cleaned, so that the surface of the printed circuit board is prevented from being worn, the condition that the detection points are deviated due to the protrusion of the printed circuit board by the particles to influence the test result is avoided, and the test stability of the printed circuit board is improved.
Description
Technical Field
The utility model belongs to the technical field of circuit board testing, and particularly relates to a printed circuit board testing tool.
Background
In order to test whether the circuit board is qualified or not, a circuit board test frame is used, a metal probe is connected with a bonding pad or a test point on the PCB, and typical values such as a voltage value and a current value of a test circuit are obtained under the condition that the PCB is powered on, so that whether the tested circuit is normally conducted or not is observed. Such as model SD80-50 test rack.
When some existing test frames test circuit boards, impurity particles possibly remain on the surface of a workbench, the surface of the circuit boards can be worn along with the placement of the impurity particles, so that the impurity particles remain to be uneven in placement of the circuit boards, part of the impurity particles are tilted, and the probe detection position is deviated, and therefore the test tool for the printed circuit boards is provided.
Disclosure of Invention
The utility model aims to provide a printed circuit board testing tool which is used for solving the problem that the circuit board put on a workbench in the prior art is possibly worn by impurity particles attached to the surface of the circuit board.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a printed wiring board test fixture, includes test jig body and clearance mechanism, the test jig body includes workstation, probe board and grudging post, clearance mechanism includes rail, mounting panel, clearance strip, sliding sleeve, connecting screw and spacing piece, the rail level is fixed at test jig body upper surface, the mounting panel is located the workstation left side and distributes along Y axle direction, just be provided with sliding sleeve and connecting screw between mounting panel front end and the rail, the mounting panel lower surface is provided with the clearance strip.
Preferably, the sliding sleeve is arranged on the transverse rail in a sliding sleeve manner, and a connecting screw is arranged between the end part of the mounting plate and the sliding sleeve.
Preferably, the upper surface of the left end of the transverse rail is provided with a limiting sheet, and the limiting sheet is a rubber sheet.
Preferably, a magic tape is arranged between the cleaning strip and the mounting plate, the transverse rail side is regarded as a T shape, and the front surface of the sliding sleeve is provided with an operation convex plate.
Preferably, a positioning assembly is arranged between the upper surface of the test frame body and the workbench, the positioning assembly comprises a vertical plate, a positioning plate, a fixed long plate and a limit bolt, the vertical plate is vertically fixed on the upper surface of the test frame body, the L-shaped positioning plate is positioned on the upper surface of the workbench, and the fixed long plate is fixed on the outer side surface of the positioning plate.
Preferably, the end part of the fixed long plate movably penetrates through a rectangular hole formed in the surface of the vertical plate to be exposed outside, the limit bolt is vertically and rotatably arranged on the upper surface of the vertical plate, and the lower end of the limit bolt is in contact with the surface of the fixed long plate.
Preferably, the upper surface of the rear end of the test frame body is provided with a stand, the probe board is vertically arranged on the front surface of the stand and provided with a guide post therebetween, and the lower surface of the probe board is provided with a test probe.
Compared with the prior art, the utility model has the beneficial effects that:
(1) According to the utility model, the test frame body, the workbench and the cleaning mechanism are combined, so that the upper surface of the workbench can be cleaned by friction, and impurity particles attached to the surface are cleaned, so that the surface of the printed circuit board is prevented from being worn, the condition that the detection points are deviated due to the protrusion of the printed circuit board by the particles to influence the test result is avoided, and the test stability of the printed circuit board is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of a cleaning mechanism according to the present utility model;
FIG. 3 is a schematic view of a positioning assembly according to the present utility model;
in the figure: 100. a test rack body; 101. a work table; 102. a probe card; 1021. a test probe; 103. a vertical frame; 200. a cleaning mechanism; 201. a transverse rail; 202. a mounting plate; 203. cleaning the strip; 204. a sliding sleeve; 205. a connecting screw; 206. a limiting piece; 300. a positioning assembly; 301. a vertical plate; 302. a positioning plate; 303. fixing the long plate; 304. and a limit bolt.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-3, the present utility model provides a technical solution: the utility model provides a printed circuit board test fixture, including test jig body 100 and clearance mechanism 200, test jig body 100 includes workstation 101, probe board 102 and grudging post 103, the printed circuit board that waits to test can be placed on workstation 101, clearance mechanism 200 includes rail 201, mounting panel 202, clearance strip 203, sliding sleeve 204, connecting screw 205 and spacing piece 206, rail 201 level is fixed on test jig body 100 upper surface, rail 201 passes through countersunk head nail to be fixed on test jig body 100, the follow-up dismouting of the two of being convenient for, mounting panel 202 is located workstation 101 left side and distributes along the Y axle direction, make things convenient for mounting panel 202 to leave sufficient length, and be provided with sliding sleeve 204 and connecting screw 205 between mounting panel 202 front end and the rail 201, realize the detachable installation of mounting panel 202, mounting panel 202 lower surface is provided with clearance strip 203, clearance strip 203 length is longer than workstation 101 length, clearance strip 203 can frictional contact workstation 101 surface.
In this embodiment, preferably, the sliding sleeve 204 is slidably sleeved on the transverse rail 201, the sliding sleeve 204 can move left and right along the transverse rail 201, a connection screw 205 is disposed between the end of the mounting plate 202 and the sliding sleeve 204, and the connection screw 205 realizes detachable connection of the two.
In this embodiment, preferably, the upper surface of the left end of the transverse rail 201 is provided with a limiting plate 206, the limiting plate 206 is a rubber sheet, the rubber sheet can contact with the inner surface of the sliding sleeve 204, and the sliding sleeve 204 is limited by using the frictional resistance of contact, so that the sliding sleeve 204 and the mounting plate 202 are conveniently accommodated and located on the left side of the workbench 101.
In this embodiment, preferably, be provided with the magic subsides between clearance strip 203 and the mounting panel 202, make things convenient for clearance strip 203 dismouting to change, clearance strip 203 is the soft brush strip, avoids causing wearing and tearing to workstation 101 upper surface, and transverse rail 201 is sideways looking for being T, and sliding sleeve 204 front surface is provided with the operation flange, makes things convenient for the operator to hold the operation flange and drives sliding sleeve 204 and mounting panel 202 removal.
In this embodiment, preferably, a positioning assembly 300 is disposed between the upper surface of the test stand body 100 and the workbench 101, the positioning assembly 300 includes a riser 301, a positioning plate 302, a fixing long plate 303 and a limit bolt 304, the riser 301 is vertically fixed on the upper surface of the test stand body 100, the riser 301 and the fixing long plate are fixed by screws to facilitate subsequent disassembly and assembly, the L-shaped positioning plate 302 is located on the upper surface of the workbench 101 to facilitate positioning of a placed printed circuit board, the fixing long plate 303 is fixed on the outer side surface of the positioning plate 302, a rectangular hole formed in the end portion of the fixing long plate 303 movably penetrates through the surface of the riser 301 is exposed to the outside, the fixing long plate 303 can move left and right, the position of the positioning plate 302 in the X-axis direction is conveniently changed, the positioning plate 302 is conveniently contacted with the surface of the printed circuit board, the limit bolt 304 is vertically and rotatably mounted on the upper surface of the riser 301, and the lower end of the limit bolt 304 is contacted with the surface of the fixing long plate 303.
In this embodiment, preferably, the upper surface of the rear end of the testing frame body 100 is provided with a stand 103, the probe card 102 is vertically installed on the front surface of the stand 103, and a guide post is provided between the stand 103 and the probe card, so that the probe card 102 can be moved conveniently, the lower surface of the probe card 102 is provided with a testing probe 1021, and the testing probe 1021 can be contacted with the surface of the circuit board for conducting the electrical test.
The working principle and the using flow of the utility model are as follows: when the cleaning mechanism 200 is used, the cleaning mechanism 200 is arranged on the upper surface of the test frame body 100, when the cleaning mechanism is not used, the sliding sleeve 204 and the mounting plate 202 are positioned on the left side of the workbench 101, when the workbench 101 needs to be cleaned, the operation convex plate is held, the sliding sleeve 204 is driven to move rightwards, the mounting plate 202 moves along with the sliding sleeve 204, the cleaning strip 203 is driven to contact with the lower surface of the workbench 101, impurities attached to the upper surface of the workbench 101 are cleaned by friction, the mounting plate 202 and the cleaning strip 203 move leftwards and rightwards, repeated friction cleaning on the upper surface of the workbench 101 is realized, after the cleaning is finished, the mounting plate 202 and the sliding sleeve 204 are positioned on the left side of the transverse rail 201 again, the positioning plate 302 is positioned on the upper surface of the workbench 101, the positioning plate 304 is held to enable the positioning bolt 304 to rotate downwards until the end part is contacted with the surface of the fixed long plate 303, the positions of the fixed long plate 303 and the positioning plate 302 are limited and fixed by the contacted friction resistance, the printed circuit board is placed on the workbench 101, the printed circuit board is contacted with the inner surface of the positioning plate 302, the printed circuit board is positioned, the handle on the test frame is held downwards, the guide post 102 is driven to move downwards, and the probe is contacted with the upper surface of the printed circuit board 1021 until the test probe is contacted with the surface of the test board.
Although embodiments of the present utility model have been shown and described in detail with reference to the foregoing detailed description, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a printed wiring board test fixture, includes test jig body (100) and clearance mechanism (200), test jig body (100) include workstation (101), probe card (102) and grudging post (103), its characterized in that: the cleaning mechanism (200) comprises a transverse rail (201), a mounting plate (202), cleaning strips (203), sliding sleeves (204), connecting screws (205) and limiting plates (206), wherein the transverse rail (201) is horizontally fixed on the upper surface of the test rack body (100), the mounting plate (202) is located on the left side of the workbench (101) and distributed along the Y-axis direction, the sliding sleeves (204) and the connecting screws (205) are arranged between the front end of the mounting plate (202) and the transverse rail (201), and the cleaning strips (203) are arranged on the lower surface of the mounting plate (202).
2. The printed wiring board testing tool according to claim 1, wherein: the sliding sleeve (204) is arranged on the transverse rail (201) in a sliding sleeve mode, and a connecting screw (205) is arranged between the end portion of the mounting plate (202) and the sliding sleeve (204).
3. The printed wiring board testing tool according to claim 1, wherein: the left end upper surface of the transverse rail (201) is provided with a limiting sheet (206), and the limiting sheet (206) is a rubber sheet.
4. The printed wiring board testing tool according to claim 1, wherein: a magic tape is arranged between the cleaning strip (203) and the mounting plate (202), the side of the transverse rail (201) is regarded as a T shape, and the front surface of the sliding sleeve (204) is provided with an operation convex plate.
5. The printed wiring board testing tool according to claim 1, wherein: be provided with locating component (300) between test jig body (100) upper surface and workstation (101), locating component (300) are including riser (301), locating plate (302), fixed longeron (303) and spacing bolt (304), riser (301) are vertical to be fixed at test jig body (100) upper surface, L type locating plate (302) are located workstation (101) upper surface, fixed longeron (303) are fixed at locating plate (302) lateral surface.
6. The printed wiring board testing tool according to claim 5, wherein: the end part of the fixed long plate (303) movably penetrates through a rectangular hole formed in the surface of the vertical plate (301) to be exposed outside, the limit bolt (304) is vertically and rotatably arranged on the upper surface of the vertical plate (301), and the lower end of the limit bolt (304) is in contact with the surface of the fixed long plate (303).
7. The printed wiring board testing tool according to claim 1, wherein: the testing frame is characterized in that an upright frame (103) is arranged on the upper surface of the rear end of the testing frame body (100), the probe board (102) is vertically arranged on the front surface of the upright frame (103) and provided with guide posts therebetween, and the lower surface of the probe board (102) is provided with testing probes (1021).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320955561.1U CN219676201U (en) | 2023-04-25 | 2023-04-25 | Printed circuit board test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320955561.1U CN219676201U (en) | 2023-04-25 | 2023-04-25 | Printed circuit board test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219676201U true CN219676201U (en) | 2023-09-12 |
Family
ID=87893526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320955561.1U Active CN219676201U (en) | 2023-04-25 | 2023-04-25 | Printed circuit board test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219676201U (en) |
-
2023
- 2023-04-25 CN CN202320955561.1U patent/CN219676201U/en active Active
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