CN110007189A - A vertical audio female head automatic plug-in test mechanism - Google Patents

Abstract

The invention aims to provide an automatic plug-and-pull test mechanism for a vertical audio female connector with high test accuracy, simple maintenance and effective avoidance of damage to product sockets during the test process. The present invention includes a frame, an upper loading board module, an upper pressing board module, a testing module and a lower needle board module. The upper loading board module is slidably arranged on the frame, and the upper pressing board module is fixedly mounted. On the frame and drivingly connected with the test module, the lower needle board module is arranged below the test module, and the test module includes an audio component and is adapted to the audio component elastic components. The invention is applied to the technical field of PCBA circuit board product testing of vertical audio female headers.

Description

A vertical audio female head automatic plug-in test mechanism

technical field

The invention relates to an automatic plug-and-pull testing mechanism for a vertical audio female head.

Background technique

The current structural solution for testing a PCB with pluggable ports is generally to directly clamp the port plug, or add soft materials such as silicone to the clamp to prevent the plug from being misaligned with the connector and cause serious plug wear. Most port plugs such as audio have a small matching gap with the female socket, and it is difficult to ensure accurate alignment only by processing. However, the matching gap between the 3.5mm audio male plug and the product’s 3.5mm audio jack is small, and the general unilateral gap is 0.05mm -0.10mm, the matching accuracy requires higher machining accuracy of the mechanism, which will greatly increase the equipment cost, and has a small fault tolerance for the differences in the products themselves. In mass production, the product itself also has certain differences. Hard insertion will cause damage to the product, and if the insertion is offset and continued to be inserted, it will cause scratches and wear at the product socket, and in severe cases, the corresponding plug on the product will be deformed. Or the welding part is loose and damaged; if you rely on soft materials to hold the plug, although the offset of the socket position due to product differences can be corrected to a certain extent, the soft materials have uncertainties and are easily affected by the external environment such as temperature, humidity and light. Affected by environmental factors, the material is aging, deformed or loses elasticity, and the maintenance is cumbersome, making it difficult to meet the needs of mass production testing.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and provide a vertical audio female automatic plug-in test mechanism with high test accuracy, simple maintenance and can effectively avoid damage to the product socket during the test process.

The technical solution adopted in the present invention is as follows: the present invention comprises a frame, an upper carrier board module, an upper pressure board module, a test module and a lower needle board module, and the upper carrier board module is slidably arranged on the frame , the upper platen module is fixedly mounted on the frame and is drive-connected with the test module, the lower needle plate module is arranged below the test module, and the test module includes an audio component and an elastic component adapted to the audio component.

It can be seen from the above solution that the test product is placed on the upper carrier board module, and the upper carrier board module realizes the transportation of the test product to the top of the lower needle board module; the upper platen module moves down, pushing the The test product on the upper carrier board module is in contact with the probe on the lower needle board module, and at the same time drives the test module to move down, so that the audio male head on the test module is in contact with the test product Therefore, the test process of the present invention realizes the direct test of the test product through the probe and the audio male head, and the test process is automatically carried out by the cylinder mechanism, and its test accuracy is high and the efficiency is high; The arrangement of the floating structure on the elastic component, when in contact with the product, floats and buffers the product, which can avoid excessive collision damage to the product; the routine maintenance of the present invention only needs to maintain the probe and the audio male head. The design is rigorous, and the service life of the probe and the audio male head is much higher than that of the traditional test solution, which greatly reduces the maintenance cost of the equipment. At the same time, because the manual operation steps are omitted, the labor cost is also reduced.

A preferred solution is that the upper carrier board module is slidably connected to the rack through two parallelly arranged slide rails, and the upper carrier board module includes a large carrier board, an upper carrier board cylinder, a small carrier board and a floating assembly of , the large carrier board is slidably connected to the slide rail, the upper carrier board cylinder is arranged inside the frame, the small carrier board is fixedly mounted on the large carrier board, and the floating component is arranged on the At both ends of the large carrier board, the small carrier board is provided with a number of guide sleeves, and the small carrier board is provided with placement grooves adapted to the product to be tested.

It can be seen from the above solution that the upper carrier plate cylinder can make the upper carrier plate module move in and out on the slide rail; the small carrier plate is used to load and precisely position the test product; It is used for precise positioning in the process of mutual contact between the lower needle plate module, the upper pressure plate test module and the upper carrier plate module.

A preferred solution is that the floating assembly includes a plurality of first equal-height screws and a plurality of first springs that are arranged one by one in cooperation with a plurality of the first equal-height screws, and the small carrier plate passes through a plurality of second equal-height screws. The high screws and the second springs that cooperate with the plurality of second equal-height screws one by one are connected to the large carrier plate, and one end of the slide rail is provided with a limit block that is fixedly connected to the frame.

It can be seen from the above solution that the first spring is used to support the upper carrier board module to float up in the height direction, the first equal-height screw is used to limit the height direction position of the upper carrier board module, and the limit block realizes The limit of the in and out travel of the upload board module.

A preferred solution is that the upper platen module comprises a top plate, mounting plates respectively provided at both ends of the top plate, a push table disposed below the top plate, and an upper platen that penetrates through the top plate and is drivingly connected to the push table. The cylinder and several linear bearings all penetrate the top plate and are fixedly connected with the push table.

It can be seen from the above solution that the upper platen cylinder is installed on the top plate, and its function is to drive the push table to achieve precise ascending and descending under the action of the linear bearing. The function is to realize the upper limit position of the upper platen module in the height direction when the upper platen module is pressed down.

A preferred solution is that one side of the top plate is hingedly fitted with the mounting plate, and the other side of the top plate is connected with the mounting plate by screws.

It can be seen from the above solution that the top plate and the mounting plate are installed by means of hinged joint threads, and the top plate can be rotated and turned up, which is convenient for the maintenance of the upper platen module.

A preferred solution is that the test module further includes a base rotatably connected to the upper platen module, and both the audio component and the elastic component are fixedly mounted on the base.

A preferred solution is that the audio component includes a fixed plate, a linear guide, a motion plate, an audio cylinder, an audio floating component and an audio male, the fixed plate is fixedly installed on the base, and the linear guide is fixed on the On the fixing plate, the moving plate connected to the audio air cylinder is mounted on the guide rail slider of the linear guide rail, and the audio floating assembly includes a connecting block fixedly connected with the moving plate, through a number of first A floating block with a floating spring mounted on the connecting block, an audio pressure head mounted on the floating block through the cooperation of a floating equal-height screw and a second floating spring, and an audio male header mounted on the floating block through a gland , a gasket is arranged on the horizontal contact surface of the motion plate and the guide rail slider.

It can be seen from the above solution that the audio air cylinder drives the guide rail slider on the linear guide rail to move, and then drives the motion board to move down, so that the audio male head moves down with the motion board, so as to realize the The audio male head is inserted into the test female head of the product; the arrangement of the first floating spring and the second floating spring makes the audio component play an elastic buffering effect on the product when it contacts with the product; The setting of the spacer is used to calibrate the sliding stroke of the audio male head. If the insertion stroke of the audio male head needs to be adjusted, the horizontal contact surface between the motion board and the rail slider can be controlled. The number of spacers is increased or decreased to adjust the audio male travel.

A preferred solution is that the elastic component includes an elastic floating plate, a connecting plate, an elastic pressing plate and several guide pins, the elastic floating plate is mounted on the base through several first elastic equal-height screws, and the connecting The plate is installed on the elastic pressing plate through a plurality of second elastic equal-height screws, the connecting plate is fixed on the elastic floating plate through a guide shaft, and the guide pins are all suitable for the upper board module A number of elastic springs are connected between the elastic floating plate and the connecting plate.

It can be seen from the above solution that the first elastic equal-height screw and the second elastic equal-height screw are used to provide elastic buffering when the elastic pressure plate is in contact with the product to be tested, effectively protecting the socket of the product from being damaged; several The arrangement of the guide pin plays a guiding role when the test module is in contact with the upper carrier board module, thereby effectively ensuring the accuracy of the test.

A preferred solution is that the lower needle plate module includes an installation platform of the lower needle plate module, a needle block fixed on the installation platform, and a number of guide pins fixed on the needle block. A circuit board is arranged under the mounting platform, and a probe is arranged on the needle block, and the probe penetrates the needle block and is electrically connected to the circuit board.

It can be seen from the above solution that the guide pin cooperates with the guide sleeve to play a guiding role when the upper carrier board module is combined with the lower needle board module; the upper carrier board module is pushed toward the lower board module. When the needle board module is used, the probe is inserted into the test point of the product to be tested, and the test data is transmitted to the external device through the circuit board.

Description of drawings

Fig. 1 is the structural representation of the present invention;

2 is a schematic structural diagram of an upper loading board module, an upper pressing board module and a testing module;

FIG. 3 is a schematic structural diagram of a first viewing angle of the loading board module;

4 is a schematic structural diagram of a second viewing angle of the loading board module;

Fig. 5 is the structural representation of the lower needle plate module;

Fig. 6 is the structural representation of the upper platen module and the test module;

7 is a schematic structural diagram of an elastic assembly;

FIG. 8 is a schematic structural diagram of an audio component.

Detailed ways

As shown in FIG. 1 and FIG. 8 , in this embodiment, the present invention includes a frame 1, an upper carrier board module 2, an upper pressure board module 3, a test module 4 and a lower needle board module 5. The upper carrier board module 5 The module 2 is slidably arranged on the frame 1, the upper platen module 3 is fixedly mounted on the frame 1 and is drive-connected with the test module 4, and the lower needle plate module 5 is provided Below the testing module 4 , the testing module 4 includes an audio component 41 and an elastic component 42 adapted to the audio component 41 .

The upper carrier board module 2 is slidably connected to the rack 1 through two parallel slide rails 21. The upper carrier board module 2 includes a large carrier board 22, an upper carrier board cylinder 23, a small carrier board 24 and a A floating assembly, the large carrier plate 22 is slidably connected to the slide rail 21 , the upper carrier plate cylinder 23 is arranged inside the frame 1 , the small carrier plate 24 is fixedly mounted on the large carrier plate 22 , The floating components are disposed on both ends of the large carrier plate 22 , the small carrier plate 24 is provided with a plurality of guide sleeves 25 , and the small carrier plate 24 is provided with placement grooves adapted to the product to be tested.

The floating assembly includes a plurality of first equal-height screws 26 and a plurality of first springs 27 arranged in cooperation with the first equal-height screws 26, and the small carrier plate 24 passes through a plurality of second equal-height screws. The screws and the second springs, which are arranged one by one with several of the second equal-height screws, are connected to the large carrier plate 22 , and one end of the slide rail 21 is provided with a limit block that is fixedly connected to the rack 1 . 28.

The upper platen module 3 includes a top plate 31 , mounting plates 32 respectively disposed at both ends of the top plate 31 , a push table 33 disposed below the top plate 31 , penetrating through the top plate 31 and drivingly connected with the push table 33 . The upper platen cylinder 34 and a plurality of linear bearings 35 penetrate through the top plate 31 and are fixedly connected with the push table 33 .

One side of the top plate 31 is hingedly fitted with the mounting plate 32 , and the other side of the top plate 31 is connected with the mounting plate 32 by screws.

The test module 4 further includes a base 43 rotatably connected to the upper platen module 3 , and the audio component 41 and the elastic component 42 are both fixedly mounted on the base 43 .

The audio component 41 includes a fixed plate 411, a linear guide 412, a motion plate 413, an audio cylinder 414, an audio floating component and an audio male head 416. The fixed plate 411 is fixedly installed on the base 43, and the linear guide 412 is fixed on the fixing plate 411, and the moving plate 413 that is drivingly connected with the audio cylinder 414 is installed on the guide rail slider 415 of the linear guide rail 412, and the audio floating assembly includes the moving plate 413. The connection block 417 that is fixedly connected, the floating block 418 installed on the connection block 417 through a number of first floating springs, the audio pressure head 410 installed on the floating block 418 through the cooperation of the floating contour screws and the second floating spring And the audio male head 416 installed on the floating block 418 through a press cover, and a gasket 419 is provided on the horizontal contact surface of the moving plate 413 and the guide rail slider 415 .

The elastic component 42 includes an elastic floating plate 421, a connecting plate 422, an elastic pressing plate 423 and a plurality of guide pins 424. The elastic floating plate 421 is mounted on the base 43 by a plurality of first elastic equal-height screws 425, The connecting plate 422 is mounted on the elastic pressing plate 423 through a plurality of second elastic equal-height screws 426 , the connecting plate 422 is fixed on the elastic floating plate 421 through a guide shaft 427 , and a plurality of the guide pins 424 Both are compatible with the upper loading board module 2. A number of elastic springs 428 are connected between the elastic floating board 421 and the connecting board 422. In this design, the elastic floating board 421, the connecting board 422 and the elastic pressing plate 423 are both provided with through holes adapted to the audio component 41. When the audio male head 416 on the audio component 41 moves down, it will pass through the through holes and be tested. product contact.

The lower needle plate module 5 includes an installation platform 51 of the lower needle plate module 5 , a needle block 52 fixed on the installation platform 51 , and a plurality of guides fixed on the needle block 52 . The pin 53 is provided with a circuit board under the mounting table 51 , and the needle block 52 is provided with a probe 54 , and the probe 54 penetrates the needle block 52 and is electrically connected to the circuit board.

The working principle of the present invention:

The test product is placed on the placement slot on the upper carrier board module 2, and the device start button is pressed, and the upper carrier board air cylinder 23 transports the upper carrier board module 2 to the lower needle board module 5. At the test position, the upper platen cylinder 34 then presses the upper platen module 3 down to contact the upper platen module 2, and makes the upper platen module 2 continue to press down under the action of the upper platen module 2. The upper carrier board module 2 descends as a whole and comes into contact with the probes 54 of the lower needle board module 5. At this time, the probes 54 are in contact with the test product, the probes 54 are compressed to the test stroke, and the product function starts. During the test, at the same time, the audio air cylinder 414 drives the guide rail slider 415 to descend, and then drives the motion plate 413 to descend, so that the audio male head 416 passes through the through hole and the test female head of the product to be tested. In conclusion, the test action of plugging and unplugging the test product by the audio male head 416 is realized. During the test process, the setting of the floating component, the elastic component 42 and the audio floating component plays a role of fixed protection. The function of the product to be tested is to avoid damage to the product. When the audio cylinder 414 rises, the audio male head 416 is separated from the test product, and the upper platen cylinder 34 is retracted, so that the upper platen module 3 and the The upper carrier board module 2 is reset to the original height, and then the upper carrier board module 2 is reset to the original position under the driving of the upper carrier board air cylinder 23, and the product is taken out.

The invention is applied to the technical field of PCBA circuit board product testing of vertical audio female headers.

Claims (9)

1. A vertical audio female head automatic plug-in test mechanism, characterized in that it comprises a frame (1), an upper loading board module (2), an upper pressing board module (3), a test module (4) and The lower needle plate module (5), the upper loading plate module (2) is slidably fitted on the frame (1), and the upper pressing plate module (3) is fixedly mounted on the frame (1) upper and driving connection with the test module (4), the lower needle board module (5) is arranged below the test module (4), and the test module (4) includes an audio component (41) ) and an elastic component (42) adapted to the audio component (41). 2. A vertical audio female head automatic plug-in test mechanism according to claim 1, characterized in that: the upper board module (2) is connected to the machine through two parallelly arranged slide rails (21). The frame (1) is slidably connected, the upper carrier board module (2) includes a large carrier board (22), an upper carrier board cylinder (23), a small carrier board (24) and a floating assembly, the large carrier board (22) ) is slidably connected to the slide rail (21), the upper carrier plate cylinder (23) is arranged inside the frame (1), and the small carrier plate (24) is fixedly mounted on the large carrier plate (22) Above, the floating components are arranged at both ends of the large carrier plate (22), the small carrier plate (24) is provided with a number of guide sleeves (25), and the small carrier plate (24) is provided with Check the slot that fits the product. 3. The automatic plug-and-pull test mechanism for a vertical audio female head according to claim 2, wherein the floating assembly comprises a plurality of first equal-height screws (26) and a plurality of the first equal-height screws (26). A plurality of first springs (27) are arranged one by one with the high screws (26), and the small carrier plate (24) is arranged one by one through a plurality of second equal-height screws and with a plurality of the second equal-height screws. The second spring is connected to the large carrier plate (22), and one end of the slide rail (21) is provided with a limit block (28) that is fixedly connected to the frame (1). 4. A vertical audio female head automatic plug-in test mechanism according to claim 1, characterized in that: the upper platen module (3) comprises a top plate (31), which are respectively arranged on the top plate (31) Mounting plates (32) at both ends, a push table (33) arranged below the top plate (31), an upper platen cylinder (34) that penetrates through the top plate (31) and is drivingly connected to the push table (33), and A plurality of linear bearings (35) all pass through the top plate (31) and are fixedly connected with the push table (33). 5. A vertical audio female head automatic plug-in test mechanism according to claim 4, characterized in that: one side of the top plate (31) is hingedly fitted with the mounting plate (32), and the top plate ( The other side of 31) is screwed with the mounting plate (32). 6. A vertical audio female head automatic plug-in test mechanism according to claim 1, characterized in that: the test module (4) further comprises a base rotatably connected to the upper platen module (3) A seat (43), the audio component (41) and the elastic component (42) are both fixedly mounted on the base (43). 7. A vertical audio female head automatic plug-in test mechanism according to claim 6, characterized in that: the audio component (41) comprises a fixed plate (411), a linear guide (412), a motion plate (413) ), an audio air cylinder (414), an audio floating assembly and an audio male head (416), the fixing plate (411) is fixedly installed on the base (43), and the linear guide rail (412) is fixed on the fixed On the plate (411), the motion plate (413) drivingly connected with the audio air cylinder (414) is mounted on the guide rail slider (415) of the linear guide rail (412), and the audio floating assembly includes a The connecting block (417) fixedly connected to the motion board (413), the floating block (418) installed on the connecting block (417) through a plurality of first floating springs, and the matching installation through the floating contour screw and the second floating spring The audio head (410) on the floating block (418) and the audio male head (416) installed on the floating block (418) through the press cover, the motion board (413) slides with the guide rail A spacer (419) is provided on the horizontal contact surface of the block (415). 8 . The automatic plug-in test mechanism for a vertical audio female head according to claim 6 , wherein the elastic component ( 42 ) comprises an elastic floating plate ( 421 ), a connecting plate ( 422 ), an elastic pressure plate ( 8 . 423) and several guide pins (424), the elastic floating plate (421) is mounted on the base (43) through several first elastic equal-height screws (425), and the connecting plate (422) passes through the Several second elastic equal-height screws (426) are mounted on the elastic pressing plate (423), the connecting plate (422) is fixed on the elastic floating plate (421) through the guide shaft (427), and several The guide pins (424) are all adapted to the upper carrier board module (2), and a plurality of elastic springs (428) are connected between the elastic floating board (421) and the connecting board (422). 9. A vertical audio female head automatic plug-in test mechanism according to claim 1, characterized in that: the lower needle plate module (5) comprises an installation platform of the lower needle plate module (5) (51), a needle block (52) fixedly mounted on the mounting table (51), and several guide pins (53) all fixedly mounted on the needle block (52), the mounting table (51) A circuit board is arranged below the needle block (52), and a probe (54) is arranged on the needle block (52), and the probe (54) penetrates the needle block (52) and is electrically connected to the circuit board.