CN115236487A

CN115236487A - A plant needle tool for circuit board test

Info

Publication number: CN115236487A
Application number: CN202210836836.XA
Authority: CN
Inventors: 夏云; 束永石
Original assignee: LCFC Hefei Electronics Technology Co Ltd
Current assignee: LCFC Hefei Electronics Technology Co Ltd
Priority date: 2022-07-15
Filing date: 2022-07-15
Publication date: 2022-10-25

Abstract

The utility model provides a plant needle tool for circuit board test includes: a support plate for bearing circuit board, signal analysis equipment and correspond the last face of detection circuit board respectively, the last detection module and the lower detection module of face down, it all includes signal test probe with lower detection module to go up the detection module, the faller, signal transmission probe and hardboard, hardboard and signal analysis equipment communication are connected, the first end of signal test probe is used for detecting the pin of circuit board, the second end of signal test probe is installed on the faller, signal transmission probe connection is between faller and hardboard, signal test probe loops through the faller, signal transmission probe and hardboard transmit the signal of telecommunication to signal analysis equipment. This openly transmits test signal to signal analysis equipment through the hardboard, avoids through the manual work with the probe welding on surveying the board, has saved the time of erection equipment, also is convenient for inspect, is difficult to make mistakes, has reduced the disability rate when the circuit board detects.

Description

A plant needle tool for circuit board test

Technical Field

The present disclosure relates to the field of circuit board testing, and more particularly, to a pin implanting jig for testing a circuit board.

Background

The pin-mounting fixture is generally used for testing pins on a circuit board, and this process is also called a flying pin test, which can check short circuits, open circuits and device values.

The existing needle implanting jig is used for welding a probe on a test board manually, and then the probe connected with a signal is switched on by manually wiring according to the signal requirement between pins of a circuit board.

Disclosure of Invention

A primary objective of the present disclosure is to provide a needling instrument for testing a circuit board, so as to solve at least the above technical problems in the prior art.

In order to achieve the above object, the present disclosure provides a needling jig for circuit board testing, including: a last detection module and lower detection module that is used for support circuit board's support plate, signal analysis equipment and corresponds the last face of detection circuit board, lower face respectively, go up detection module and detect the module down and all include signal test probe, faller, signal transmission probe and hardboard, the hardboard with signal analysis equipment communication is connected, the first end of signal test probe is used for detecting the pin of circuit board, the second end of signal test probe install in on the faller, signal transmission probe connect in between faller and the hardboard, signal test probe loops through faller, signal transmission probe and hardboard to signal analysis equipment transmission signal of telecommunication.

In an implementation mode, a plurality of connection base holes used for being connected with the probes are uniformly distributed on the front surface and the back surface of the needle plate, and the probes are arranged on the needle plate according to the positions of pins on the circuit board of the type to be detected.

In an implementation mode, including being used for the drive detect the elevating system that the module ascended down, go up and detect module, support plate, detect module and elevating system down and set up according to from last order down, the hardboard that detects the module down is called lower mould hardboard, elevating system's output is connected the lower mould hardboard, evenly be provided with a plurality of probe holes that hold the probe and pass through on the support plate, the back that the lower mould hardboard ascended can make signal test probe follow the butt after the probe hole passes down the face.

In an embodiment, a needle plate of the lower detection module is referred to as a lower needle plate, and a first supporting mechanism for supporting the carrier plate is disposed on the lower needle plate, and the carrier plate is placed on the first supporting mechanism.

In an implementation manner, a needle plate of the upper detection module is called an upper needle plate, a guide post is arranged on the lower needle plate, a guide sleeve corresponding to the guide post is arranged on the upper needle plate, and the guide post is inserted into the guide sleeve when a circuit board is detected.

In one can the implementation way, including control box and base case, one side of control box through the pivot rotate connect in the base case, the opposite side of control box passes through the supporting leg and supports, go up the hardboard that detects the module and be called the upper die hardboard, go up the faller set up in the bottom of control box, it is in to go up the hardboard setting in the control box, the process behind the support of supporting leg, the faller is on a parallel with down the support plate.

In an implementation manner, a power module is arranged in the control box.

In one embodiment, a fan module is disposed in the control box, and an air outlet direction of the fan module is from top to bottom.

In an implementation mode, the base box is internally provided with a translation mechanism, the translation mechanism comprises at least one translation slide rail, the translation slide rail extends in the front-back direction, the base box comprises a left side wall, a right side wall and a translation supporting plate, the translation slide rail is fixed on the left side wall and/or the right side wall, the lower side of the translation supporting plate is connected with translation supporting legs, and translation supporting leg sleeves are arranged on the translation slide rail.

In an implementation mode, the lower needle plate is arranged on the translation supporting plate, at least one supporting wall extending in the front-back direction is arranged in the base box, a chute is formed in the supporting wall, the lower needle plate is connected with a sliding supporting leg, a limiting hole allowing the sliding supporting leg to penetrate is formed in the translation supporting plate, the sliding supporting leg penetrates through the limiting hole and then keeps static in the front-back direction with the limiting hole, a sliding roller is arranged on the sliding supporting leg and slidably arranged in the chute, a traction plate is connected to the translation supporting plate, a traction electric cylinder is fixedly arranged in the base box, and a piston rod of the traction electric cylinder is connected with the traction plate.

The utility model discloses a needle implanting jig detects the last face and the lower face of circuit board respectively through last detection module and lower detection module to transmit test signal to signal analysis equipment through the hardboard, avoid through the manual work with the probe welding on surveying the board, saved erection equipment's time, also be convenient for inspect, be difficult to make mistakes, reduced the disability rate when circuit board surveys.

It should be understood that the statements in this section are not intended to identify key or critical features of the embodiments of the present disclosure, nor are they intended to limit the scope of the present disclosure. Other features of the present disclosure will become apparent from the following description.

Drawings

The above and other objects, features and advantages of exemplary embodiments of the present disclosure will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present disclosure are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which:

in the drawings, the same or corresponding reference numerals indicate the same or corresponding parts.

Fig. 1 is a schematic view illustrating an upper inspection module and a lower inspection module of a needle implanting jig for inspecting a circuit board according to an embodiment of the present disclosure;

fig. 2 is a schematic structural view of a needling instrument according to one embodiment of the present disclosure;

FIG. 3 is a schematic diagram of a circuit board in one embodiment of the present disclosure;

fig. 4 is an exploded view of a partial structure of a lower needle plate, a carrier plate and an upper needle plate according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of a carrier plate according to an embodiment of the disclosure;

FIG. 6 is a schematic view of a lower inspection module and a base box according to one embodiment of the present disclosure;

fig. 7 is a schematic cross-sectional structure view of a needling jig according to an embodiment of the present disclosure;

fig. 8 is a schematic view of a connection structure of a lower needle plate and a base box according to an embodiment of the present disclosure.

Wherein the figures include the following reference numerals:

1. a carrier plate; 11. a first support mechanism; 12. a probe hole; 13. a limiting post; 2. a circuit board; 21. feeding a plate surface; 22. a lower plate surface; 3. an upper detection module; 31. a signal test probe; 32. an upper needle plate; 321. a guide sleeve; 33. a signal transmission probe; 34. an upper die hard plate; 4. a lower detection module; 41. a lower needle plate; 411. a guide post; 42. a lower die hard plate; 7. a control box; 71. a rotating shaft; 72. supporting legs; 73. a power supply module; 74. a fan module; 8. a base case; 811. translating the slide rail; 82. a left side wall; 83. a right side wall; 84. a translation support plate; 841. a limiting hole; 85. translating the support leg; 86. a support wall; 861. a chute; 87. a sliding support leg; 871. sliding the roller; 88. a traction plate; 89. and (5) pulling the electric cylinder.

Detailed Description

In order to make the objects, features and advantages of the present disclosure more obvious and understandable, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

Referring to fig. 1-3, the present embodiment provides a needle implanting jig for testing a circuit board, the needle implanting jig includes a carrier plate 1, a signal analyzing device, an upper detecting module 3 and a lower detecting module 4, the carrier plate 1 is used for supporting the circuit board 2, the upper detecting module 3 is used for detecting an upper board surface 21 of the circuit board 2, the lower detecting module 4 is used for detecting a lower board surface 22 of the circuit board 2, both the upper detecting module 3 and the lower detecting module 4 include a signal testing probe 31, a needle plate, a signal transmission probe 33 and a hard plate, wherein the needle plate and the hard plate in the upper detecting module 3 are respectively called an upper needle plate 32 and an upper hard plate 34; the needle plate and the hard plate in the lower detection module 4 are respectively called a lower needle plate 41 and a lower hard plate 42, and the upper hard plate 34 and the lower hard plate 42 are respectively in communication connection with a signal analysis device, and can play a role in signal transmission. Specifically, in any one of the upper detection module 3 and the lower detection module 4, a first end of the signal test probe 31 is used for detecting a pin on the circuit board 2, a second end of the signal test probe 31 is installed on the pin plate, the signal transmission probe 33 is connected between the pin plate and the hard plate, and the signal test probe 31 transmits a test electrical signal to the signal analysis device sequentially through the pin plate, the signal transmission probe 33 and the hard plate.

In the embodiment of the disclosure, a plurality of connection base holes for connecting probes are uniformly distributed on the front surface and the back surface of the needle plate, and the probes are arranged on the needle plate according to the positions of the corresponding pins on the circuit board 2 of the type to be detected.

In an embodiment not shown, the signal testing probes 31 may be fixed to a chip board according to the type of the circuit board 2, and the chip board may be placed on the pin plate and electrically connected to the pin plate.

Referring to fig. 4, in the embodiment of the present disclosure, a lower needle plate 41 is parallel to the carrier plate 1, a first supporting mechanism 11 for supporting the carrier plate 1 is disposed on the lower needle plate 41, the carrier plate 1 is placed on the first supporting mechanism 11, the first supporting mechanism 11 includes a plurality of supporting springs, bottom ends of the supporting springs are fixed on the lower needle plate 41, and top ends of the supporting springs are used for supporting the carrier plate 1.

Referring to fig. 3 and 4, in the embodiment of the present disclosure, a plurality of limiting columns 13 are disposed on the carrier plate 1, and the plurality of limiting columns 13 are used to limit the peripheral edges of the circuit board 2, so that an operator can accurately place the circuit board 2 in place, and each pin on the circuit board 2 can be accurately detected when the upper board surface 21 and the lower board surface 22 are detected.

Referring to fig. 1 to 5, in the embodiment of the present disclosure, the needling fixture includes an elevating mechanism for driving the lower detection module 4 to ascend or descend, the upper detection module 3, the carrier plate 1, the lower detection module 4 and the elevating mechanism are arranged in a sequence from top to bottom, an output end of the elevating mechanism is connected to the lower hard plate 42, a plurality of probe holes 12 for allowing probes to pass through are uniformly arranged on the carrier plate 1, after the lower hard plate 42 ascends, the signal testing probes 31 can pass through the probe holes 12 and abut against the lower plate surface 22, and the opening or closing of the detection of the circuit board 2 is controlled by the ascending and descending of the lower detection module 4.

Referring to fig. 1 and 2, in the embodiment of the present disclosure, the needling jig includes a control box 7 and a base box 8, the control box 7 is disposed above the upper detection module 3, and the lifting mechanism is disposed in the base box 8. One side of control box 7 rotates through pivot 71 and connects in base case 8, and the opposite side of control box 7 supports through supporting leg 72, and the bottom fixed connection of supporting leg 72 is on the inner wall of base case 8, and the top of supporting leg 72 is non-fixed connection with the bottom of control box 7, and after control box 7 upwards overturns, control box 7 and supporting leg 72 separated, after control box 7 put down, can support through supporting leg 72.

Referring to fig. 2 and 6, in the embodiment of the present disclosure, a translation mechanism is provided in the base box 8, the translation mechanism includes at least one translation slide rail 811, the translation slide rail 811 extends in the front-rear direction, the base box 8 includes a left side wall 82, a right side wall 83 and a translation support plate 84, the lower needle plate 41 is provided on the translation support plate 84, the translation slide rail 811 is fixed on the left side wall 82 or the right side wall 83, the lower side of the translation support plate 84 is connected with a translation support leg 85, the translation support leg 85 is sleeved on the translation slide rail 811, and the front-rear translation of the lower needle plate 41 can be realized by the movement of the translation support plate 84 along the extension direction of the translation slide rail 811.

In the embodiment of the present disclosure, in order to ensure the stability of the front and rear translation of the above-mentioned translation supporting plate 84, two parallel translation sliding rails 811 may be provided in the base box 8, one is provided on the left side wall 82, the other is provided on the right side wall 83, the left and right sides of the translation supporting plate 84 are both connected with the translation supporting legs 85, the left translation supporting legs 85 are sleeved on the translation sliding rails 811 on the left side wall 82, and the right translation supporting legs 85 are sleeved on the translation sliding rails 811 on the right side wall 83.

Referring to fig. 2 and 6-8, in the embodiment of the present disclosure, one or two supporting walls 86 extending in the front-rear direction are disposed in the base box 8, the supporting wall 86 is parallel to both the left side wall 82 and the right side wall 83, and when the two supporting walls 86 are disposed, a gap is left between each of the two supporting walls 86 and the adjacent left side wall 82 or right side wall 83. The chute 861 has been seted up on the backup pad 86, it is low after this chute 861 is high, the bottom of lower needle board 41 is connected with the supporting leg 87 that slides, set up the spacing hole 841 that holds the supporting leg 87 that slides and pass on the translation backup pad 84, be provided with the gyro wheel 871 that slides on the supporting leg 87 that slides, the gyro wheel 871 that slides sets up in chute 861, be connected with the traction plate 88 on the translation backup pad 84, the fixed traction electric jar 89 that is provided with in the base case 8, the piston rod and the traction plate 88 of traction electric jar 89 are connected, extension or the indentation through above-mentioned piston rod, drive the seesaw of traction plate 88.

In the embodiment of the present disclosure, the sliding support leg 87 passes through the limiting hole 841 and then remains stationary in the front-rear direction with the limiting hole 841, that is, the sliding support leg 87 cannot be displaced in the front-rear direction relative to the translation support plate 84 after being inserted into the limiting hole 841.

In the embodiment of the present disclosure, the compound motion of the lower detection module 4 is realized by the above method, and when the translation support plate 84 moves back and forth, because the sliding roller 871 on the sliding support leg 87 is slidably disposed in the chute 861, the sliding support leg 87 can generate the displacement in the vertical direction, and then the lower needle plate 41 connected to the sliding support leg 87 is driven to move in the vertical direction.

In the embodiment of the present disclosure, the needle implanting jig needs to lift the control box 7 upward when replacing the detected circuit board 2, and for convenience of operation, a handle is disposed on a bottom plate of the control box 7, and the control box 7 can be turned upward along the rotating shaft 71 by lifting the handle. Meanwhile, the pulling electric cylinder 89 is also needed to realize the backward movement of the lower detection module 4, that is, both the lower pin plate 41 and the carrier plate 1 move backward relative to the base box 8, so as to ensure that a larger operation space is provided for an operator to take out the circuit board 2 from between the limiting posts 13 of the carrier plate 1, and in the process, the signal test probe 31 of the lower detection module 4 can also gradually get away from the circuit board 2 to terminate the detection, thereby avoiding the occurrence of poor contact and damage of detection equipment when the circuit board 2 is taken up; and it is difficult to maintain the level of the circuit board 2 during the process of picking up the circuit board 2, and damage to the first end of the signal testing probe 31 is also prevented.

In the embodiment of the present disclosure, after the new circuit board 2 is replaced, the needling jig needs to be reset, the traction electric cylinder 89 is firstly used to realize the forward movement of the lower detection module 4, and then the control box 7 is turned over downwards, and the control box 7 can be supported by the support legs 72. In order to determine that the signal testing probes 31 in the upper detecting module 3 and the lower detecting module 4 can be accurately aligned with the pins on the circuit board 2, the lower needle plate 41 is further provided with guide posts 411, the upper needle plate 32 is provided with guide sleeves 321 corresponding to the guide posts 411, and if the guide posts 411 can be just inserted into the guide sleeves 321, it indicates that the positions of the upper detecting module 3, the lower detecting module 4 and the circuit board 2 are accurate at this time, and the circuit board 2 can be detected.

In the disclosed embodiment, the upper needle plate 32 is disposed at the bottom of the control box 7, and the upper mold hard plate 34 is disposed inside the control box 7.

In the embodiment of the present disclosure, a fan module 74 is disposed in the control box 7, the air outlet direction of the fan module 74 is from top to bottom, and the air cooling and cooling are performed on the circuit board 2 and the upper detection module 3 through the fan module 74 in the using process, so as to protect the equipment.

In the embodiment of the present disclosure, a power module 73 is disposed in the control box 7, and the electrical equipment of the needling instrument is powered by the battery module.

It should be understood that various forms of the flows shown above may be used, with steps reordered, added, or deleted. For example, the steps described in the present disclosure may be executed in parallel, sequentially or in different orders, and are not limited herein as long as the desired results of the technical solutions disclosed in the present disclosure can be achieved.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. Terms referring to "first direction", "second direction", and the like, refer to a straight line direction unless otherwise specifically limited. In the description of the present disclosure, "a plurality" means two or more unless specifically limited otherwise.

The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present disclosure, and shall cover the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a plant needle tool for circuit board test which characterized in that includes: a last detection module (3) and lower detection module (4) that is used for support plate (1), signal analysis equipment of bearing circuit board (2) and corresponds last face (21), lower face (22) of detection circuit board (2) respectively, go up detection module (3) and detect module (4) down and all include signal test probe (31), faller, signal transmission probe (33) and hardboard, the hardboard with signal analysis equipment communication is connected, the first end of signal test probe (31) is used for detecting the pin of circuit board (2), the second end of signal test probe (31) install in on the faller, signal transmission probe (33) connect in between faller and the hardboard, signal test probe (31) loop through faller, signal transmission probe (33) and hardboard to signal analysis equipment transmission electrical signal.

2. The needling jig according to claim 1, wherein the front and back surfaces of the needle plate are uniformly distributed with a plurality of connection base holes for connecting the probes, and the probes are arranged on the needle plate according to the positions of the pins on the circuit board (2) to be tested.

3. The needling fixture according to claim 1, characterized in that it comprises a lifting mechanism for driving the lower detection module (4) to rise, the upper detection module (3), the carrier plate (1), the lower detection module (4) and the lifting mechanism are arranged in sequence from top to bottom, the hard plate of the lower detection module (4) is called a lower hard plate (42), the output end of the lifting mechanism is connected to the lower hard plate (42), the carrier plate (1) is uniformly provided with a plurality of probe holes (12) for allowing probes to pass through, and after the lower hard plate (42) rises, the signal testing probes (31) can be abutted to the lower plate surface (22) after passing through the probe holes (12).

4. The needling fixture according to claim 3, wherein the needle board of the lower detection module (4) is called as a lower needle board (41), a first support mechanism (11) for supporting the carrier plate (1) is arranged on the lower needle board (41), and the carrier plate (1) is placed on the first support mechanism (11).

5. The needling fixture according to claim 4, characterized in that the needle plate of the upper detection module (3) is called as an upper needle plate (32), the lower needle plate (41) is provided with guide posts (411), the upper needle plate (32) is provided with guide sleeves (321) corresponding to the guide posts (411), and the guide posts (411) are inserted into the guide sleeves (321) when the circuit board (2) is detected.

6. The needle implanting jig according to claim 3, characterized by comprising a control box (7) and a base box (8), wherein one side of the control box (7) is rotatably connected to the base box (8) through a rotating shaft (71), the other side of the control box (7) is supported through supporting legs (72), a hard plate of the upper detection module (3) is called an upper die hard plate (34), the upper needle plate (32) is arranged at the bottom of the control box (7), the upper die hard plate (34) is arranged in the control box (7), and after being supported by the supporting legs (72), the lower needle plate (41) is parallel to the carrier plate (1).

7. The needling jig according to claim 6, characterized in that a power module (73) is arranged in the control box (7).

8. The needling jig according to claim 6, wherein a fan module (74) is disposed in the control box (7), and an air outlet direction of the fan module (74) is from top to bottom.

9. The needling fixture according to claim 6, characterized in that a translation mechanism is arranged in the base box (8), the translation mechanism comprises at least one translation slide rail (811), the translation slide rail (811) extends in the front-rear direction, the base box (8) comprises a left side wall (82), a right side wall (83) and a translation support plate (84), the translation slide rail (811) is fixed on the left side wall (82) and/or the right side wall (83), translation support legs (85) are connected to the lower sides of the translation support plate (84), and the translation slide rail (811) is sleeved with the translation support legs (85).

10. The needle implanting jig according to claim 9, wherein the lower needle plate (41) is arranged on the translation supporting plate (84), at least one supporting wall (86) extending in the front-back direction is arranged in the base box (8), a chute (861) is formed in the supporting wall (86), sliding supporting legs (87) are connected to the lower needle plate (41), a limiting hole (841) allowing the sliding supporting legs (87) to penetrate is formed in the translation supporting plate (84), the sliding supporting legs (87) are kept static in the front-back direction after penetrating through the limiting hole (841), sliding rollers (871) are arranged on the sliding supporting plate (87), the sliding rollers (871) are arranged in the chute (861) in a sliding manner, a traction plate (88) is connected to the translation supporting plate (84), a traction electric cylinder (89) is fixedly arranged in the base box (8), and a piston rod of the traction electric cylinder (89) is connected to the traction plate (88).