CN223624261U - Circuit board testing equipment - Google Patents
Circuit board testing equipmentInfo
- Publication number
- CN223624261U CN223624261U CN202422787485.5U CN202422787485U CN223624261U CN 223624261 U CN223624261 U CN 223624261U CN 202422787485 U CN202422787485 U CN 202422787485U CN 223624261 U CN223624261 U CN 223624261U
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- Prior art keywords
- circuit board
- movable plate
- plate
- connecting hole
- fixed plate
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Abstract
本实用新型实施方式提供了一种电路板测试装置，电路板测试装置包括基台和压测机构，基台用于承载待测试电路板，压测机构包括层叠的固定板和活动板，活动板和固定板在垂直于层叠方向上的平面内浮动连接，活动板位于固定板朝向基台的一侧，活动板设有电测试件，固定板用于带动活动板朝向基台运动，以使电测试件与待测试电路板电接触。通过设置层叠且浮动连接的固定板和活动板，活动板可相对固定板在垂直于层叠方向的平面内运动，以纠正在测试过程中产生的位置偏差，活动板上的电测试件能够与待测试电路板的对应位置对准进行测试，降低了待测试电路板被撞坏的风险。
This invention provides a circuit board testing device, which includes a base and a pressure testing mechanism. The base supports the circuit board to be tested. The pressure testing mechanism includes a fixed plate and a movable plate stacked together. The movable plate and the fixed plate are floatingly connected in a plane perpendicular to the stacking direction. The movable plate is located on the side of the fixed plate facing the base and is equipped with an electrical test piece. The fixed plate drives the movable plate to move towards the base so that the electrical test piece makes electrical contact with the circuit board to be tested. By setting up a stacked and floatingly connected fixed plate and movable plate, the movable plate can move relative to the fixed plate in a plane perpendicular to the stacking direction to correct positional deviations generated during testing. The electrical test piece on the movable plate can be aligned with the corresponding position of the circuit board to be tested, reducing the risk of the circuit board to be damaged by impact.
Description
Technical Field
The utility model relates to the technical field of circuit board testing, in particular to a circuit board testing device.
Background
After the design of the circuit board is completed, the circuit board can be put into production through testing. In the testing process of the circuit board, the circuit board to be tested is required to be placed on the base station, and then the top plate with the ejector pins is driven to move towards the circuit board to be tested, so that the ejector pins are contacted with the corresponding electric connection points of the circuit board to be tested to conduct the circuit board to be tested, and the circuit board to be tested is tested.
In the prior art, along with the test, the top plate is continuously lifted and lowered, so that the top plate has position deviation in the plane direction, and the ejector pins on the top plate are not aligned with the corresponding positions of the circuit board to be tested, so that the circuit board to be tested is crashed.
Disclosure of utility model
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the circuit board testing device which can correct the position deviation of the electrical test piece in the testing process and reduce the risk of crashing the circuit board to be tested.
The embodiment of the utility model provides a circuit board testing device which comprises a base station and a pressure testing mechanism. The base station is used for bearing the circuit board to be tested. The press testing mechanism comprises a laminated fixed plate and a movable plate, wherein the movable plate is in floating connection with the fixed plate in a plane perpendicular to the lamination direction, the movable plate is positioned on one side of the fixed plate facing the base station, the movable plate is provided with an electrical test piece, and the fixed plate is used for driving the movable plate to move towards the base station so that the electrical test piece is in electrical contact with the circuit board to be tested.
The circuit board testing device provided by the embodiment of the utility model has at least the following beneficial effects:
Through setting up range upon range of fixed plate and fly leaf that just float and connect, the fly leaf can be relative fixed plate at the plane internal motion of perpendicular to range upon range of direction to correct the positional deviation that produces in the test process, the electrical test piece on the fly leaf can be aligned with the corresponding position of awaiting measuring the test circuit board and test, has reduced the risk that awaiting measuring the test circuit board is crashed.
In one embodiment of this implementation manner, the pressure measurement mechanism includes a connection assembly, the fixing plate is provided with a first connection hole, the movable plate is provided with a second connection hole, the connection assembly is disposed through the first connection hole and the second connection hole, the connection assembly has a spacing distance from an inner wall of the first connection hole, and/or the connection assembly has a spacing distance from an inner wall of the second connection hole.
In an example of this embodiment, the connecting assembly includes a connecting piece and a mating piece, the mating piece is located the second connecting hole, the connecting piece is located the first connecting hole, and one end stretches into in the second connecting hole with the mating piece is connected, the mating piece with the inner wall in second connecting hole has the interval distance.
In one example of this embodiment, the connector abuts against the top side of the fixed plate, and the mating member opposes or abuts against the bottom side of the movable plate to restrict the relative positions of the fixed plate and the movable plate in the stacking direction.
In an example of this embodiment, the pressure measurement mechanism includes a pressing plate and an elastic element, where the pressing plate is disposed on a side of the movable plate opposite to the fixed plate and is connected to the movable plate through the elastic element, and when the fixed plate drives the movable plate to move toward the base station, the pressing plate may abut against the circuit board to be tested and compress the elastic element.
In an example of this embodiment, the pressure measurement mechanism includes the installed part, the third connecting hole has been seted up to the fixed plate, the fourth connecting hole has been seted up to the fly leaf, the one end of installed part is located the third connecting hole, and with the inner wall of third connecting hole has the interval, the other end of installed part passes the fourth connecting hole, and with the clamp plate is connected.
In one example of this embodiment, the mounting member is slidably engaged with the fourth attachment hole.
In one example of this embodiment, the platen is perforated, and at least a portion of the electrical test piece extends into the perforation.
In an example of this embodiment, the pressure measurement mechanism includes a guide pillar, the guide pillar is located the fly leaf, the guide hole has been seted up to the base station, the guide pillar with the guide hole sliding fit.
In an example of this embodiment, the fixing plate is provided with a via hole, and one end of the electrical test piece passes through the via hole and protrudes from the surface of the movable plate opposite to the fixing plate.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The utility model is further described with reference to the accompanying drawings and examples, in which:
Fig. 1 is a schematic perspective view of a circuit board testing device according to an embodiment of the utility model;
FIG. 2 is a schematic perspective view of a part of the pressure testing mechanism of the circuit board testing device of FIG. 1;
FIG. 3 is a schematic cross-sectional view of a portion of the pressure sensing mechanism of FIG. 2 in a direction through the connection assembly;
FIG. 4 is an enlarged schematic view of area A of FIG. 3;
FIG. 5 is a schematic cross-sectional view of the partial pressure measurement mechanism of FIG. 2 in a direction through the mount;
fig. 6 is an enlarged schematic view of the area B of fig. 5.
Reference numerals:
The base 10, the guide hole 101, the pressure measuring mechanism 20, the fixed plate 21, the first connecting hole 211, the third connecting hole 212, the through hole 213, the movable plate 22, the electric test piece 221, the second connecting hole 222, the fourth connecting hole 223, the mounting plate 23, the connecting assembly 24, the connecting piece 241, the mating piece 242, the pressing plate 25, the elastic block 251, the through hole 252, the mounting piece 26 and the guide post 27.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, the meaning of a number is one or more, the meaning of a number is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and the meaning of a number is understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
In the description of the present utility model, the descriptions of the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Referring to fig. 1 and 2, fig. 1 is a schematic perspective view of a circuit board testing device according to an embodiment of the utility model, and fig. 2 is a schematic perspective view of a partial pressure testing mechanism 20 of the circuit board testing device of fig. 1. The embodiment of the utility model provides a circuit board testing device, which comprises a base station 10 and a pressure testing mechanism 20. The base station 10 is used for carrying a circuit board to be tested. The press-testing mechanism 20 includes a laminated fixed plate 21 and a movable plate 22, the movable plate 22 and the fixed plate 21 are floatingly connected in a plane perpendicular to the lamination direction, the movable plate 22 is located at a side of the fixed plate 21 facing the base 10, the movable plate 22 is provided with an electrical test piece 221, and the fixed plate 21 is used for driving the movable plate 22 to move toward the base 10 so that the electrical test piece 221 is in electrical contact with a circuit board to be tested.
Specifically, the test of the circuit board to be tested may be an open circuit test, a short circuit test, a resistance test, a capacitance test, a diode test, a triode test, a field effect transistor test, an IC pin test, and the like.
Specifically, the pressure measurement mechanism 20 includes a driving member (not shown) and a mounting plate 23, the fixing plate 21 is fixedly connected with the mounting plate 23, and the driving member is connected with the mounting plate 23 and can drive the mounting plate 23 to drive the fixing plate 21 and the movable plate 22 to move toward the base 10 or move away from the base 10. In this embodiment, the pressure measurement mechanism 20 is disposed above the base 10, the movement direction of the driving member driving the mounting plate 23 is a vertical direction, the lamination direction of the fixed plate 21 and the movable plate 22 is a vertical direction, the plane perpendicular to the lamination direction is a horizontal plane, and the direction perpendicular to the lamination direction is a horizontal direction.
Specifically, the electrical test piece 221 is a thimble, and the thimble can be electrically contacted with a needle sleeve, a welding spot, and the like on the circuit board to be tested, so as to realize conduction. The electric test piece 221 is fixedly connected with the movable plate 22, i.e. the electric test piece 221 and the movable plate 22 can move synchronously.
Through setting up range upon range of fixed plate 21 and fly leaf 22 that just float and connect, fly leaf 22 can be relative fixed plate 21 at the plane internal motion of perpendicular to range upon range of direction to correct the position deviation that produces in the test process, the electric test piece 221 on the fly leaf 22 can be aligned with the corresponding position of awaiting measuring the test circuit board and test, has reduced the risk that awaiting measuring the test circuit board is crashed.
In one example of this embodiment, referring to fig. 3 and 4, fig. 3 is a schematic cross-sectional view of a portion of the pressure measurement mechanism 20 of fig. 2 along a direction passing through the connection assembly 24, and fig. 4 is an enlarged schematic view of a region a of fig. 3. The pressure measurement mechanism 20 comprises a connection assembly 24, a first connection hole 211 is formed in the fixed plate 21, a second connection hole 222 is formed in the movable plate 22, the connection assembly 24 penetrates through the first connection hole 211 and the second connection hole 222, and the connection assembly 24 and the inner wall of the first connection hole 211 have a spacing distance, and/or the connection assembly 24 and the inner wall of the second connection hole 222 have a spacing distance. So arranged, a suitable movable space can be provided between the movable plate 22 and the fixed plate 21 to facilitate correction of positional deviation.
In this embodiment, the connecting assembly 24 is attached to the inner wall of the first connecting hole 211, and the connecting assembly 24 is spaced from the inner wall of the second connecting hole 222. In other embodiments, the connecting component 24 may be spaced from the inner wall of the first connecting hole 211, and the connecting component 24 is attached to the inner wall of the second connecting hole 222. In other embodiments, the connection member 24 may be spaced apart from the inner wall of the first connection hole 211, and the connection member 24 may be spaced apart from the inner wall of the second connection hole 222.
In an example of this embodiment, referring to fig. 3 and 4, the connecting assembly 24 includes a connecting member 241 and a mating member 242, the mating member 242 is disposed in the second connecting hole 222, the connecting member 241 is disposed in the first connecting hole 211, and one end of the connecting member 241 extends into the second connecting hole 222 to connect with the mating member 242, and the mating member 242 is spaced from an inner wall of the second connecting hole 222. So arranged, the assembly of the fixed plate 21 and the movable plate 22 is relatively simple, which is beneficial to reducing the cost.
In one example of this embodiment, referring to fig. 3 and 4, the connecting member 241 abuts against the top side of the fixed plate 21, and the engaging member 242 opposes or abuts against the bottom side of the movable plate 22 to restrict the relative positions of the fixed plate 21 and the movable plate 22 in the stacking direction. The arrangement is such that the fixed plate 21 moves the movable plate 22 to complete the test.
In this embodiment, the connecting piece 241 is a screw, the mating piece 242 is a nut, the head of the screw abuts against the surface of the fixed plate 21 facing away from the movable plate 22, and the screw rod of the screw passes through the first connecting hole 211 and extends into the second connecting hole 222 to be in threaded connection with the nut. The bottom of the nut is provided with a boss, the bottom of the second connecting hole 222 is provided with a corresponding annular groove, and the boss is arranged in the annular groove and has a spacing distance with the inner wall of the annular groove. So arranged, the mounting of the fixed plate 21 and the movable plate 22 can be accomplished by the connecting piece 241 and the fitting piece 242 while providing the movable plate 22 with a space that can move with respect to the fixed plate 21.
In one example of this embodiment, referring to fig. 1 and 5, fig. 5 is a schematic cross-sectional view of a portion of the pressure sensing mechanism 20 of fig. 2 along a direction through the mounting member 26. The pressure measurement mechanism 20 includes a pressing plate 25 and an elastic member (not shown), the pressing plate 25 is disposed on one side of the movable plate 22 opposite to the fixed plate 21 and connected to the movable plate 22 through the elastic member, and when the fixed plate 21 drives the movable plate 22 to move toward the base 10, the pressing plate 25 can abut against a circuit board to be tested and compress the elastic member. Specifically, the elastic member may be selected from elastic members such as a spring, a leaf spring, and a leaf spring. The pressing plate 25 is provided with a plurality of elastic blocks 251, the plurality of elastic blocks 251 are used for being abutted against the circuit board to be tested, and the positions of the plurality of elastic blocks 251 can be adjusted so as to avoid devices on the circuit board to be tested. So set up, can compress tightly the circuit board that awaits measuring through clamp plate 25 and elastic component to test, simultaneously, owing to the existence of elastic component, reducible clamp plate 25 crushes the risk of awaiting measuring the circuit board.
In one example of this embodiment, referring to fig. 1 and 5, the platen 25 is provided with a through hole 252, and at least a portion of the electrical test piece 221 extends into the through hole 252. In the test process, as the fixing plate 21 is pressed down, the pressing plate 25 abuts against the circuit board to be tested and compresses the elastic member, the distance between the pressing plate 25 and the movable plate 22 becomes smaller, and the electrical test piece 221 can extend out of the through hole 252 and be in electrical contact with the circuit board to be tested, thereby completing the test. Through the perforation 252 formed on the pressing plate 25, the electrical test piece 221 on the movable plate 22 can smoothly electrically contact with the circuit board to be tested.
In an example of this embodiment, referring to fig. 1 and 5, the fixing plate 21 is provided with a via 213, and one end of the electrical test piece 221 passes through the via 213 and protrudes from the surface of the fixing plate 21 opposite to the movable plate 22. So as to facilitate connection of the electrical test piece 221 to a cable or the like.
In an example of this embodiment, please refer to fig. 1, 5 and 6, fig. 6 is an enlarged schematic view of the area B of fig. 5. The pressure measuring mechanism 20 includes a mounting member 26, the mounting member 26 connecting the fixing plate 21 and the pressing plate 25, and the mounting member 26 being spaced apart from the fixing plate 21 in a plane direction perpendicular to the stacking direction. Specifically, the fixing plate 21 is provided with a third connecting hole 212, the movable plate 22 is provided with a fourth connecting hole 223, one end of the mounting member 26 is arranged at the third connecting hole 212 and has a spacing distance from the inner wall of the third connecting hole 212, and the other end of the mounting member 26 passes through the fourth connecting hole 223 and is connected with the pressing plate 25. So arranged, the fixing plate 21 and the pressing plate 25 can be mounted by the mounting member 26 while providing a space for movement of the pressing plate 25 relative to the fixing plate 21 in a plane perpendicular to the stacking direction.
In this embodiment, the elastic member is a spring, the spring is sleeved on the outer periphery of the mounting member 26, and two ends of the spring are respectively abutted against the movable plate 22 and the pressing plate 25.
In one example of this embodiment, referring to fig. 1, 5 and 6, the mounting member 26 is slidably engaged with the fourth connecting hole 223. The arrangement is such that the pressing plate 25 moves relative to the movable plate 22, and the pressing plate 25 can elastically press the circuit board to be tested in the process that the movable plate 22 is driven by the fixed plate 21 to press down, and meanwhile, the electrical test piece 221 is also convenient to extend out of the through hole 252 of the pressing plate 25. Specifically, the mounting piece 26 is fitted to the inner wall of the fourth connecting hole 223 to restrict the positions of the pressing plate 25 and the movable plate 22 on the plane perpendicular to the stacking direction from being relatively fixed.
In this embodiment, the number of the connecting members 24 and the number of the mounting members 26 are plural, so that the mounting stability of the fixed plate 21, the movable plate 22 and the pressing plate 25 is improved.
In an example of this embodiment, referring to fig. 1, the pressure measurement mechanism 20 includes a guide post 27, the guide post 27 is disposed on the movable plate 22, the base 10 is provided with a guide hole 101, and the guide post 27 is slidably matched with the guide hole 101. Specifically, the number of the guide posts 27 and the guide holes 101 is plural, and the guide posts 27 are slidably engaged with the corresponding guide holes 101. In this embodiment, the guide post 27 and the inner wall of the guide hole 101 have a clearance so as to provide a space for movement between the fixed plate 21 and the movable plate 22.
The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model. Furthermore, embodiments of the utility model and features of the embodiments may be combined with each other without conflict.
Claims (10)
1. A circuit board testing apparatus, comprising:
The base station is used for bearing a circuit board to be tested;
The press testing mechanism comprises a laminated fixed plate and a movable plate, wherein the movable plate is in floating connection with the fixed plate in a plane perpendicular to the lamination direction, the movable plate is positioned on one side of the fixed plate facing the base station, the movable plate is provided with an electrical test piece, and the fixed plate is used for driving the movable plate to move towards the base station so as to enable the electrical test piece to be in electrical contact with the circuit board to be tested.
2. The circuit board testing device according to claim 1, wherein the pressure testing mechanism comprises a connecting component, the fixed plate is provided with a first connecting hole, the movable plate is provided with a second connecting hole, the connecting component penetrates through the first connecting hole and the second connecting hole, the connecting component is spaced from the inner wall of the first connecting hole, and/or the connecting component is spaced from the inner wall of the second connecting hole.
3. The circuit board testing device according to claim 2, wherein the connecting assembly comprises a connecting member and a mating member, the mating member is disposed in the second connecting hole, the connecting member is disposed in the first connecting hole, one end of the connecting member extends into the second connecting hole to be connected with the mating member, and the mating member is spaced from an inner wall of the second connecting hole.
4. A circuit board testing device according to claim 3, wherein the connection member abuts against a top side of the fixed plate, and the mating member opposes or abuts against a bottom side of the movable plate to restrict a relative position of the fixed plate and the movable plate in the stacking direction.
5. The circuit board testing device according to claim 1, wherein the pressure testing mechanism comprises a pressing plate and an elastic member, the pressing plate is arranged on one side of the movable plate, which is opposite to the fixed plate, and is connected with the movable plate through the elastic member, and when the fixed plate drives the movable plate to move towards the base station, the pressing plate can be abutted against the circuit board to be tested and compress the elastic member.
6. The circuit board testing device according to claim 5, wherein the pressure testing mechanism comprises a mounting member, the fixing plate is provided with a third connecting hole, the movable plate is provided with a fourth connecting hole, one end of the mounting member is arranged in the third connecting hole and has a spacing distance from the inner wall of the third connecting hole, and the other end of the mounting member passes through the fourth connecting hole and is connected with the pressing plate.
7. The circuit board testing device of claim 6, wherein the mounting member is a sliding fit with the fourth attachment hole.
8. The circuit board testing device of claim 5, wherein the platen is perforated with perforations into which at least a portion of the electrical test piece extends.
9. The circuit board testing device according to claim 5, wherein the press testing mechanism comprises a guide post, the guide post is arranged on the movable plate, the base is provided with a guide hole, and the guide post is in sliding fit with the guide hole.
10. The circuit board testing device according to claim 1, wherein the fixing plate is provided with a via hole, and one end of the electrical test piece passes through the via hole and protrudes away from the surface of the movable plate relative to the fixing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422787485.5U CN223624261U (en) | 2024-11-14 | 2024-11-14 | Circuit board testing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422787485.5U CN223624261U (en) | 2024-11-14 | 2024-11-14 | Circuit board testing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223624261U true CN223624261U (en) | 2025-12-02 |
Family
ID=97825090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422787485.5U Active CN223624261U (en) | 2024-11-14 | 2024-11-14 | Circuit board testing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223624261U (en) |
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2024
- 2024-11-14 CN CN202422787485.5U patent/CN223624261U/en active Active
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