Circuit board interface test tool

Abstract

The utility model provides a circuit board interface test tool comprising a tool bottom plate, the tool bottom plate is provided with a wooden circuit board fixing seat which slides along the left-right direction and a plug seat which slides along the front-back direction, and the front part of the plug seat is right opposite to the circuit board fixing seat; the front end of the plug seat is provided with a plug used for being connected with a circuit board slot. The circuit board fixing seat is provided with a lifting carrier plate and a movable pressing plate used for fixing a circuit board on the lifting carrier plate. The test tool can align the positions of the circuit board interface and the plug of the plug seat by translating the circuit board fixing seat and adjusting the height of the lifting support plate, so that the test tool can be suitable for the power-on test of various circuit boards, the plug mounting plate and the lifting support plate are elastic, and the interface of a circuit board test piece is prevented from being unsoldered due to stress when being connected with the plug. In addition, the position of a corner needle at the bottom of the pressing needle can be adjusted by rotating a hand-screwing cap at the top end of the pressing needle, so that the corner needle is prevented from abutting against a component on the circuit board test piece to cause damage.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board testing, and particularly relates to a circuit board interface testing tooling. Background Art

[0002] For electronic products, the quality of the PCBA of the internal circuit board will directly affect the quality of the final product. Before the circuit board is taken off the PCBA production line, multiple tests such as appearance, size, electrical conductivity, insulation performance, welding quality, and function test need to be carried out. During the function test, it is necessary to connect the test plug to the interface soldered on the circuit board to supply power or transmit signals to the circuit board. Since there is no protective housing outside the circuit board during the test, it is very fragile, and a test tooling is required to fix the circuit board and ensure that the circuit board will not be short-circuited, component damaged, and solder joint damaged due to external factors during the test. In addition, since the circuit boards of various electronic products have different shapes and the interfaces used may also be different, the test tooling often has poor applicability, and the test tooling needs to be modified or remanufactured to meet the test requirements when changing the type of the test circuit board. Content of the Utility Model

[0003] In view of the defects of the background art, the utility model provides a circuit board interface testing tooling, which is convenient for fixing the circuit board test piece and connecting the interface, can be applicable to the testing of multiple circuit boards, and can protect the circuit board to avoid short circuit, component damage, and solder joint damage caused by external factors during the test.

[0004] The utility model provides a circuit board interface testing tooling, which includes a tooling bottom plate, on which a wooden circuit board fixing seat sliding along the left-right direction and a plug seat sliding along the front-back direction are installed, and the front part of the plug seat faces the circuit board fixing seat;

[0005] The front end of the plug seat is provided with a plug for connecting the circuit board slot;

[0006] The circuit board fixing seat is provided with a lifting carrier plate and a movable pressing plate for fixing the circuit board test piece on the lifting carrier plate.

[0007] Preferably, the bottom of the circuit board fixing seat is provided with a first slider, and the tooling bottom plate is provided with a first chute, and the first slider is slidably installed in the first chute;

[0008] The first slider is provided with a transmission screw hole, in which a lead screw in transmission cooperation is arranged, and both ends of the lead screw penetrate through the tooling bottom plate along the left-right direction, and one end of the lead screw is provided with a torsion wheel.

[0009] Preferably, the lifting carrier plate is a double-layer plate, including a lower carrier plate and an upper carrier plate, and the lower carrier plate and the upper carrier plate are connected by a plurality of adjusting stud bolts, and a carrier plate spring is arranged on the periphery of the adjusting stud bolts.

[0010] Preferably, the circuit board fixing seat further includes a first support arm and a second support arm for mounting the movable pressure plate;

[0011] One end of the movable pressure plate is a fixed end, which is hinged to the top of the first support arm, and the other end is a free end, which is placed in the limit groove on the top of the second support arm. A locking tongue for restricting the free end from disengaging is provided in the limit groove.

[0012] Preferably, a locking tongue sliding groove is provided on the side of the limit groove, and the locking tongue sliding groove is communicated with the limit groove. The body of the locking tongue is slidably arranged in the locking tongue sliding groove;

[0013] A tail rod is provided at the tail of the locking tongue. The tail rod passes through the outside of the locking tongue sliding groove, and an end cap is provided at the end of the tail rod;

[0014] A locking tongue spring for providing elastic force for the locking tongue is provided on the periphery of the tail rod.

[0015] Preferably, a plurality of through holes are provided in the movable pressure plate, and pressure pins are detachably installed in the through holes;

[0016] The pressure pin includes a hand-tightening cap, a vertical shaft, a limit ring and a corner pin from top to bottom. The hand-tightening cap is screwed and installed at the top of the vertical shaft. The vertical shaft passes through the through hole. The limit ring is located on the periphery of the vertical shaft and close to the bottom of the vertical shaft. The corner pin is connected to the bottom end of the vertical shaft.

[0017] Preferably, the circuit board interface test tooling further includes a thruster for driving the plug socket to slide back and forth. The thruster includes a thruster base, a wrench, a connecting rod and a push rod;

[0018] The thruster base is fixedly arranged on the tooling bottom plate, and a guiding cylinder extending forward is provided at the top thereof;

[0019] Two connecting ends are provided at the front end of the wrench. One connecting end is hinged to the tail of the thruster base, and the other connecting end is hinged to the tail end of the connecting rod;

[0020] The front end of the connecting rod is hinged to the tail end of the push rod, and the front end of the push rod is fixedly connected to the plug socket.

[0021] Preferably, the plug socket includes a second slider, a plug socket bracket, a front sealing plate and a plug mounting plate;

[0022] The second slider is fixedly arranged at the bottom of the plug socket bracket. A second sliding groove is further provided on the tooling bottom plate, and the second slider is slidably arranged in the second sliding groove;

[0023] The front sealing plate is located at the front side of the plug socket bracket. The plug mounting plate is detachably installed at the front side of the front sealing plate, and the plug is installed on the plug mounting plate.

[0024] Preferably, the plug mounting board is a double-layer board, including a front mounting board and a rear mounting board which are elastically connected. The plug is mounted on the front mounting board, and the rear mounting board is detachably mounted on the front sealing plate.

[0025] Preferably, the front end of the plug socket is provided with a plurality of plugs of various types.

[0026] The beneficial effects of the present utility model include: the circuit board interface test tooling can align the positions of the circuit board interface and the plug of the plug socket by translating the circuit board fixing seat and adjusting the height of the lifting carrier plate, so it can be applied to the power-on test of various circuit boards; both the plug mounting board and the lifting carrier plate are elastic, avoiding the interface of the circuit board test piece from being de-soldered due to force when connected to the plug; by rotating the hand-tightening cap at the top of the pressure pin, the position of the corner pin at the bottom of the pressure pin can be adjusted, thus avoiding damage to the components on the circuit board test piece caused by the corner pin touching them. Description of the Drawings

[0027] The present utility model will be described in detail below in conjunction with the embodiments and the drawings, where:

[0028] Figure 1 is a perspective view of the circuit board interface test tooling of the present utility model.

[0029] Figure 2 is a top view of the circuit board interface test tooling of the present utility model.

[0030] Figure 3 is a layout view of the tooling bottom plate of the present utility model.

[0031] Figure 4 is a structural schematic diagram of the pressure pin of the present utility model.

[0032] Reference Signs:

[0033] 1 - Tooling bottom plate, 11 - First chute, 12 - Second chute, 2 - Circuit board fixing seat, 21 - Lifting carrier plate, 211 - Lower carrier plate, 212 - Upper carrier plate, 213 - Adjusting stud, 214 - Carrier plate spring, 22 - Movable pressure plate, 221 - First support arm, 222 - Second support arm, 223 - Limit groove, 224 - Lock tongue, 225 - Lock tongue chute, 226 - Tail rod, 227 - End cap, 228 - Lock tongue spring, 229 - Rotating lever, 23 - First slider, 24 - Lead screw, 241 - Torsion wheel, 3 - Plug socket, 31 - Second slider, 32 - Plug socket bracket, 33 - Front sealing plate, 34 - Front mounting board, 35 - Rear mounting board, 36 - Hand-tightening bolt, 37 - Mounting board spring, 4 - Plug, 5 - Circuit board test piece, 51 - Circuit board interface, 6 - Pressure pin, 61 - Hand-tightening cap, 62 - Vertical shaft, 63 - Limit ring, 64 - Corner pin, 7 - Pusher, 71 - Pusher base, 72 - Wrench, 73 - Connecting rod, 74 - Push rod, 75 - Guide tube. Detailed implementation mode

[0034] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0035] Therefore, a feature pointed out in this specification will be used to illustrate one of the features of one embodiment of the present utility model, rather than implying that each embodiment of the present utility model must have the described feature. In addition, it should be noted that this specification describes many features. Although certain features can be combined together to show a possible system design, these features can also be used in other combinations not explicitly described. Therefore, unless otherwise stated, the described combination is not intended to be limiting.

[0036] The principle of the present utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0037] The present utility model provides a circuit board interface test tooling, as Figures 1-4 shown, which includes a tooling bottom plate 1. A wooden circuit board fixing seat 2 that slides in the left-right direction and a plug seat 3 that slides in the front-back direction are installed on the tooling bottom plate 1. The front part of the plug seat 3 faces the circuit board fixing seat 2; a plug 4 for connecting to the circuit board slot is provided at the front end of the plug seat 3; the circuit board fixing seat 2 is provided with a lifting carrier plate 21 and a movable pressing plate 22 for fixing the circuit board test piece 5 on the lifting carrier plate 21. The front end of the plug seat 3 is provided with a plurality of plugs 4 of various types, including TYPE-C plugs, USB plugs, DC plugs, etc.

[0038] This embodiment is applicable to the power-on test of various circuit boards. The circuit board fixing seat 2 is used to fix the circuit board test piece 5. After aligning the positions of the circuit board interface 51 and the plug 4 by translating the circuit board fixing seat 2 and adjusting the height of the lifting carrier plate 21, the plug seat 3 is moved forward to dock the plug 4 with the circuit board interface 51 to achieve the power-on test.

[0039] In this embodiment, a first slider 23 is provided at the bottom of the circuit board fixing seat 2, and a first chute 11 is provided on the tooling bottom plate 1. The first slider 23 is slidably installed in the first chute 11. A transmission screw hole is provided in the first slider 23, and a lead screw 24 in transmission cooperation is provided in the transmission screw hole. The two ends of the lead screw 24 penetrate through the tooling bottom plate 1 in the left-right direction, and a torsion wheel 241 is provided at one end of the lead screw 24. By manually rotating the torsion wheel 241, the left-right movement of the circuit board fixing seat 2 can be realized through the transmission of the lead screw 24.

[0040] In this embodiment, the lifting carrier plate 21 is a double-layer plate, including a lower carrier plate 211 and an upper carrier plate 212. The lower carrier plate 211 and the upper carrier plate 212 are connected by 4 adjusting studs 213, and a carrier plate spring 214 is arranged around the adjusting studs 213. Since the carrier plate has elasticity, when the movable pressure plate 22 is pressed down, the solder joints at the bottom of the circuit board test piece 5 can be avoided from being damaged. The circuit board test piece 5 may be a single-sided board, a double-sided board or a multi-layer board, so the thickness is not uniform, and the heights of the components on its surface are also different. Therefore, the thicknesses of each type of circuit board are different, but the thickness difference generally does not exceed 20 mm. By turning the adjusting stud 213 with a tool, the distance between the carrier plates can be adjusted, and then the interface height position of the circuit board test piece 5 can be adjusted to be the same as the height of the plug 4.

[0041] In this embodiment, the circuit board fixing seat 2 further includes a first support arm 221 and a second support arm 222 for mounting the movable pressure plate 22. One end of the movable pressure plate 22 is a fixed end, and the fixed end is hinged to the top of the first support arm 221. The other end is a free end, and the free end is placed in the limit groove 223 at the top of the second support arm 222. A locking tongue 224 for restricting the free end from disengaging is arranged in the limit groove 223. A locking tongue sliding groove 225 is arranged on the side of the limit groove 223, and the locking tongue sliding groove 225 is communicated with the limit groove 223. The body of the locking tongue 224 is slidably arranged in the locking tongue sliding groove 225. A tail rod 226 is arranged at the tail of the locking tongue 224, and the tail rod 226 passes through the outside of the locking tongue sliding groove 225. And a end cap 227 is arranged at the end of the tail rod 226. A locking tongue spring 228 for providing elastic force for the locking tongue 224 is arranged around the tail rod 226. When it is necessary to open the movable pressure plate 22, pull the end cap 227 outwards to make the locking tongue 224 completely enter the locking tongue sliding groove 225, and the restriction on the free end of the movable pressure plate 22 can be released. A lever 229 is connected to the fixed end of the movable pressure plate 22, and turn the lever 229 by hand to turn up the free end to open. After the circuit board test piece 5 is placed on the lifting carrier plate 21, press the movable pressure plate 22 downwards by hand until the free end enters the limit groove 223 and is locked by the locking tongue 224.

[0042] In this embodiment, a plurality of through holes are formed in the movable pressure plate 22, and press pins 6 are detachably installed in the through holes. The press pin 6 includes a hand-tightening cap 61, a vertical shaft 62, a limit ring 63 and a corner pin 64 from top to bottom. The hand-tightening cap 61 is screwed and installed at the top end of the vertical shaft 62. The vertical shaft 62 is arranged in the through hole. The limit ring 63 is located on the peripheral side of the vertical shaft 62 and close to the bottom of the vertical shaft 62. The corner pin 64 is connected to the bottom end of the vertical shaft 62. By rotating the hand-tightening cap 61 at the top end of the press pin 6, the position of the corner pin 64 at the bottom of the press pin 6 can be adjusted, so as to avoid the corner pin 64 from touching the components on the circuit board test piece 5 and causing damage. The lifting carrier plate 21 has elasticity, which can avoid the interface of the circuit board test piece 5 from being de-soldered due to force when connected to the plug 4.

[0043] In this embodiment, the circuit board interface test tooling further includes a thruster 7. The thruster 7 includes a thruster base 71, a wrench 72, a connecting rod 73, and a push rod 74. The thruster base 71 is fixedly installed on the tooling base plate 1, and a guiding cylinder 75 extending forward is provided at its top. The front end of the wrench 72 is provided with two connecting ends, one of which is hinged to the tail of the thruster base 71, and the other is hinged to the tail end of the connecting rod 73. The front end of the connecting rod 73 is hinged to the tail end of the push rod 74, and the front end of the push rod 74 is fixedly connected to the plug socket 3. By holding the wrench 72 and rotating it up and down, the forward and backward sliding of the driving plug socket 3 can be controlled.

[0044] The plug socket 3 includes a second slider 31, a plug socket bracket 32, a front sealing plate 33, and a plug mounting plate. The second slider 31 is fixedly installed at the bottom of the plug socket bracket 32. The tooling base plate 1 is further provided with a second chute 12, and the second slider 31 is slidably arranged in the second chute 12. The plug mounting plate is a double-layer plate, including a front mounting plate 34 and a rear mounting plate 35 which are elastically connected. The plug 4 is mounted on the front mounting plate 34, and the rear mounting plate 35 is detachably mounted on the front sealing plate 33. The elastic plug mounting plate can prevent the circuit board interface 51 from being de-soldered due to force when connected to the plug 4. The front mounting plate 34 and the rear mounting plate 35 are connected by a hand-tightening bolt 36. The rear end of the hand-tightening bolt 36 is provided with a detachable hand-tightening bolt cap, and the front end is provided with a retaining ring. The hand-tightening bolt 36 passes through the front sealing plate 33, the rear mounting plate 35, and the front mounting plate 34 from back to front and is threadedly connected between the front sealing plate 33 and the rear mounting plate 35. The retaining ring restricts the front mounting plate 34 from detaching at the front part, and the hand-tightening bolt cap is located at the rear side of the front sealing plate 33. An installation plate spring 37 is sleeved around the bolt body between the front mounting plate 34 and the rear mounting plate 35. By rotating the hand-tightening bolt 36, the distance between the front mounting plate 34 and the rear mounting plate 35 can be adjusted, and thus its elasticity can be adjusted.

[0045] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A circuit board interface testing tool, characterized in that: It comprises a tooling bottom plate, on which a wooden circuit board fixing seat sliding in the left-right direction and a plug seat sliding in the front-back direction are installed, and the front part of the plug seat faces the circuit board fixing seat; The front end of the plug seat is provided with a plug for connecting to a circuit board slot; The circuit board fixing seat is provided with a lifting carrier plate and a movable pressing plate for fixing the circuit board test piece on the lifting carrier plate.

2. The circuit board interface testing tool as claimed in claim 1, characterized in that: A first sliding block is provided at the bottom of the circuit board fixing seat, a first sliding groove is provided on the tooling bottom plate, and the first sliding block is slidably installed in the first sliding groove; The first sliding block is provided with a transmission screw hole, in which a transmission-matching lead screw is provided, two ends of the lead screw penetrate the tooling bottom plate in the left-right direction, and one end of the lead screw is provided with a torsion wheel.

3. The circuit board interface testing tool as claimed in claim 2, characterized in that: The lifting carrier plate is a double-layer plate, comprising a lower plate and an upper plate. The lower plate and the upper plate are connected via a plurality of adjusting studs, and carrier plate springs are arranged around the outer periphery of the adjusting studs.

4. The circuit board interface testing tool as claimed in claim 3, characterized in that: The circuit board fixing seat also includes a first supporting arm and a second supporting arm for mounting the movable pressing plate; One end of the movable pressure plate is a fixed end, which is hinged to the top of the first support arm, and the other end is a free end, which is placed in a limiting groove at the top of the second support arm. A locking tongue is provided in the limiting groove to limit the free end from detaching.

5. The circuit board interface testing tool as claimed in claim 4, characterized in that: A lock tongue sliding groove is provided on the side of the limiting groove, the lock tongue sliding groove is communicated with the limiting groove, and the body of the lock tongue is slidably arranged in the lock tongue sliding groove; The tail of the lock tongue is provided with a tail rod, the tail rod passes through the outside of the lock tongue sliding groove, and the end of the tail rod is provided with an end cap; A lock tongue spring for providing elastic force to the lock tongue is arranged on the periphery of the tail rod.

6. The circuit board interface testing tool as claimed in claim 1, characterized in that: The movable pressing plate is provided with a plurality of through holes, and a pressing needle is detachably installed in the through holes; The pressing needle includes a hand-tightening cap, a vertical shaft, a limiting ring and a corner needle from top to bottom. The hand-tightening cap is screwed on the top of the vertical shaft, the vertical shaft is passed through the through hole, the limiting ring is located on the circumference of the vertical shaft and close to the bottom of the vertical shaft, and the corner needle is connected to the bottom end of the vertical shaft.

7. The circuit board interface testing tool as claimed in claim 1, characterized in that: The circuit board interface test fixture also includes a propeller for driving the plug socket to slide forward and backward, and the propeller includes a propeller base, a wrench, a connecting rod and a push rod; The thruster base is fixedly mounted on the tooling bottom plate, and a guide cylinder extending forward is provided on the top of the thruster base; The front end of the wrench is provided with two connecting ends, one of which is hinged to the tail of the thruster base, and the other is hinged to the tail end of the connecting rod; The front end of the connecting rod is hinged to the rear end of the push rod, and the front end of the push rod is fixedly connected to the plug socket.

8. The circuit board interface testing tool as claimed in claim 7, characterized in that: The plug socket comprises a second slider, a plug socket bracket, a front sealing plate and a plug mounting plate; The second sliding block is fixedly arranged at the bottom of the plug socket bracket, and the tooling bottom plate is further provided with a second sliding groove, and the second sliding block is slidably arranged in the second sliding groove; The front sealing plate is located at the front side of the plug socket bracket, the plug mounting plate is detachably mounted on the front side of the front sealing plate, and the plug is mounted on the plug mounting plate.

9. The circuit board interface testing tool as claimed in claim 8, characterized in that: The plug mounting plate is a double-layer plate, comprising a front mounting plate and a rear mounting plate which are elastically connected, the plug is mounted on the front mounting plate, and the rear mounting plate is detachably mounted on the front sealing plate.

10. The circuit board interface testing tool as claimed in claim 1, characterized in that: A plurality of plugs of various types are arranged at the front end of the plug socket.

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