CN115255548B

CN115255548B - Circuit board welding fixture and operation method thereof

Info

Publication number: CN115255548B
Application number: CN202211126642.7A
Authority: CN
Inventors: 周旋; 王海英; 檀正东; 贺成俊; 王海明; 杜君宽; 李胜利; 蔡云峰; 黄艳玲; 檀襄
Original assignee: Shenzhen Anewbest Electronic Technology Co ltd
Current assignee: Shenzhen Anewbest Electronic Technology Co ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-06-23
Anticipated expiration: 2042-09-15
Also published as: CN115255548A

Abstract

The application provides a circuit board welding fixture and an operation method thereof, wherein the fixture comprises a first carrier and a second carrier which are arranged side by side at intervals and are hinged through a rotating mechanism; the first carrier comprises a first base and a pressing plate, a first station is arranged on the first base, and the pressing plate is hinged to one end of the first base; the second carrier comprises a second base, a pressing strip and a pressing block, a second station is arranged on the second base, the pressing strip is hinged to one end of the second base, the pressing block is hinged to one side, away from the first base, of the second base, and a through hole is formed in the second station, corresponding to a welding point on the back surface of the circuit board. When the second carrier rotates to a proper position relative to the first carrier, an operator can weld the lower arranging wire core of the wire body with the back surface of the circuit board through the through hole formed in the second station, so that double-sided welding of the wire core and the circuit board can be completed under the condition that the circuit board is not taken down, the operation is convenient, and the working efficiency of the operator is greatly improved.

Description

Circuit board welding fixture and operation method thereof

Technical Field

The application relates to the technical field of jigs, in particular to a circuit board welding fixture and an operation method thereof.

Background

The data line is used as one of necessary basic elements for data transmission, and can be used for data transmission movement between devices or for achieving the purposes of data transmission, charging, communication and the like. The data line comprises a line body and a data head, wherein a plurality of wire cores in the line body are required to be welded on a circuit board of the data head, and in order to reduce the width of the line body, the wire cores are generally provided with two rows and are respectively welded on the front side and the back side of the circuit board.

During the actual welding process, the circuit board is generally fixed through the fixing jig, and after the front surface of the circuit board is welded, the circuit board is taken down again, turned over and fixed again, and then the back surface of the circuit board is welded. The mode is complex in operation and low in welding efficiency.

Disclosure of Invention

In order to solve the existing technical problems, the application provides a circuit board welding fixture capable of completing double-sided welding of a circuit board through single fixing and an operation method thereof.

In order to achieve the above purpose, the technical solution of the embodiments of the present application is implemented as follows:

in one aspect, an embodiment of the present application provides a circuit board welding fixture, including a first carrier for clamping a wire body and a second carrier for clamping a circuit board, where the first carrier and the second carrier are arranged side by side at intervals along a first direction and hinged by a rotation mechanism;

the first carrier comprises a first base and a pressing plate, a first station is arranged on the first base along the first direction, and the pressing plate is hinged to one end of the first base in the second direction;

the second carrier comprises a second base, a pressing strip and a pressing block, a second station corresponding to the first station is arranged on the second base, the pressing strip is hinged to one end, located in the second direction, of the second base, the pressing block is hinged to one side, away from the first base, of the second base and corresponds to the second station, and a through hole is formed in the second station, corresponding to a welding point on the back of the circuit board; the first direction is perpendicular to the second direction.

In one embodiment, the second base is provided with a clamping groove, and the clamping groove is arranged along the first direction and extends from the edge of the through hole to one side of the second base facing the first base.

In one embodiment, the depth of the clamping groove is smaller than or equal to the diameter of the wire core in the wire body.

In one embodiment, the rotating mechanism comprises a connecting seat, a connecting plate and a pin shaft, wherein the connecting seat is arranged on two sides of the first base in the second direction, a first connecting hole is formed in the connecting seat, the connecting plate is arranged on two sides of the second base in the second direction, a second connecting hole is formed in the connecting plate, and the pin shaft is arranged in the first connecting hole and the second connecting hole on the same side in a penetrating manner.

In one embodiment, the rotating mechanism further includes a locking block slidably disposed on the connecting base along the first direction, the connecting plate has an arc-shaped side wall, and the locking block is operatively abutted to the arc-shaped side wall to lock the rotating position of the second carrier relative to the first carrier.

In one embodiment, one end of the pressing plate is connected with the first base, and the other end of the pressing plate is connected with the first base in a magnetic attraction mode or a buckling mode.

In one embodiment, one end of the pressing bar is hinged with the second base, and the other end of the pressing bar is connected with the second base in a buckling mode.

In one embodiment, an elastic piece is arranged on one side, facing the pressing block, of the pressing bar in the rotating direction.

In one embodiment, the first station is provided with a plurality of first stations and is arranged along the second direction at intervals, and the second stations and the pressing blocks are respectively provided with a plurality of second stations and the pressing blocks correspondingly.

On the other hand, the application also provides an operation method applied to the circuit board welding fixture, which comprises the following steps:

the wire body is placed in a first station, the pressing plate is rotated to fix the wire body, the lower wire core in the wire body is placed in the clamping groove, and the welding end of the lower wire core corresponds to the through hole;

placing the circuit board in a second station, and sequentially rotating the pressing block and the pressing strip, so that the pressing strip presses the pressing block, the pressing block presses the circuit board, and the circuit board presses the lower cable core in the clamping groove;

rotating the second carrier to form a 90-degree included angle with the first carrier, and welding the lower cable core with a welding spot on the back surface of the circuit board through a through hole at one side of the second base, which is opposite to the second station;

and rotating the second carrier to form an included angle of 180 degrees with the first carrier, and welding the upper cable core in the cable body with the welding spot on the front surface of the circuit board.

The welding and fixing jig for the circuit board and the operation method thereof have the following beneficial effects: the circuit board welded fastening tool of this application is fixed to the line body and the circuit board respectively through first carrier and second carrier, makes the second carrier can rotate relative first carrier through setting up slewing mechanism, and when the second carrier rotated suitable position, the lower winding displacement core of line body and the one side welding of circuit board orientation second station are passed through to the through-hole of seting up on the second station to the operating personnel. Therefore, double-sided welding of the wire core and the circuit board can be completed under the condition that the circuit board is not taken down, the operation is convenient, and the working efficiency of operators is greatly improved.

Drawings

Fig. 1 is a schematic perspective view of a circuit board welding fixture according to an embodiment of the present application;

FIG. 2 is a schematic diagram of the first and second carriers of FIG. 1 in a state of forming an angle of 180 degrees;

FIG. 3 is a schematic diagram of the structure of the first carrier and the second carrier in FIG. 1 in a state of forming an angle of 90 degrees;

FIG. 4 is a projection view of the circuit board soldering fixture of FIG. 3 in one direction;

FIG. 5 is a sectional view of a split structure of the second carrier of FIG. 1;

FIG. 6 is an enlarged view at A in FIG. 5;

FIG. 7 is a schematic diagram of a disassembled structure of the rotating mechanism in FIG. 1;

fig. 8 is a flow chart of an operation method of the circuit board welding fixture according to the embodiment of the application.

The reference numerals of the elements in the drawings are as follows: a first carrier 10; a first base 11; a first station 111; a platen 12; a lightening hole 121; digging 122; a second carrier 20; a second base 21; a second station 211; a through hole 212; a card slot 213; a briquette 22; a batten 23; an elastic member 231; a mounting hole 232; a connection base 31; a first connection hole 311; a chute 312; a locking hole 313; a threaded hole 314; a connection plate 32; a second connection hole 321; an arcuate sidewall 322; a pin 33; a lock block 34; waist-shaped hole 341; a round head screw 35; a wire body 200; a circuit board 300.

Detailed Description

The technical scheme of the application is further elaborated below by referring to the drawings in the specification and the specific embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the implementations of the present application.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

First, referring to fig. 1, the embodiment of the present application provides a fixture for soldering and fixing a circuit board, which includes a first carrier 10 and a second carrier 20. The first carrier 10 is used for clamping and fixing the wire body 200, the second carrier 20 is used for clamping and fixing the circuit board 300, the first carrier 10 and the second carrier 20 are arranged side by side at intervals along the first direction, and the first carrier 10 and the second carrier 20 are hinged through a rotating mechanism. By operating the second carrier 20 to rotate relative to the first carrier 10, the upper and lower cable cores can be welded to the front and back surfaces of the circuit board 300 respectively without removing the circuit board 300, so as to improve the welding efficiency.

Specifically, the first carrier 10 includes a first base 11 and a platen 12. The first base 11 is provided with a first station 111 for placing the wire body 200, the first station 111 may be a groove matched with the wire body 200 in shape, or may be a plurality of bosses with grooves arranged at intervals along a first direction, the first station 111 is arranged along the first direction, and the wire body 200 is placed along the first direction and the exposed wire core faces the direction of the second carrier 20. The pressing plate 12 is hinged to one end of the first base 11 in a second direction, the second direction is perpendicular to the first direction, and the wire body 200 can be pressed and fixed by rotating the pressing plate 12.

Preferably, the pressing plate 12 may be a flat plate structure, one end of the pressing plate 12 may be hinged to the first base 11 through a rotation axis parallel to the first direction, and the other end may be detachably connected to the first base 11 through magnetic attraction, fastening, and the like; the pressure plate 12 may be provided with a weight-reducing hole 121 for reducing weight; the pressure plate 12 may be provided with a key 122 for facilitating manual opening and closing of the pressure plate 12.

Referring to fig. 5 and 6, the second carrier 20 includes a second base 21, a pressing block 22 and a pressing bar 23. The second base 21 is provided with a second station 211 for placing the circuit board 300, the second station 211 is arranged corresponding to the first station 111, so that the circuit board 300 and the wire core in the wire body 200 are convenient to be aligned and welded, and the second station 211 can be a groove matched with the shape of the circuit board 300. The pressing bar 23 is hinged to one end, located in the second direction, of the second base 21, the pressing block 22 is hinged to one side, away from the first base 11, of the second base 21, the pressing block 22 is arranged corresponding to the second station 211, the pressing bar 23 and the second base 21 form clamping on the circuit board 300 through rotation of the pressing bar 23, and then the pressing block 22 is pressed through rotation of the pressing bar 23 to further press and fix the circuit board 300.

Preferably, the shape of the pressing block 22 is designed correspondingly to the size of the circuit board 300, and the pressing block 22 can be hinged with the second base 21 through a rotating shaft parallel to the second direction; the pressing block 22 may be provided with a hollow hole to avoid the raised portion on the front surface of the circuit board 300, such as a bulge or a portion provided with electronic components. One end of the pressing bar 23 may be hinged to the second base 21 through a rotation axis parallel to the first direction, and the other end may be detachably connected to the second base 21 through a snap-fit manner.

In order to avoid the disadvantage that the circuit board 300 is not firmly fixed due to the clearance between the pressing bar 23 and the pressing block 22, an elastic member 231 is disposed on one side of the pressing bar 23 facing the pressing block 22 in the rotation direction, and when the pressing bar 23 is locked with the second base 21, the elastic member 231 provides the pressing force of the pressing block 22 to the workpiece, and the telescopic characteristic of the elastic member 231 prevents the circuit board 300 from being not firmly fixed. Meanwhile, when the pressing bar 23 and the second base 21 are released from the buckle, the elastic member 231 provides the elastic force for the pressing bar 23 to rotate upwards and pop up, so that the operation of operators is facilitated. The elastic member 231 may be a ball plunger, a spring, a metal elastic sheet, a deformed plastic member, or the like. In the illustrated embodiment, the elastic member 231 is a ball plunger, the pressing bar 23 is provided with a mounting hole 232, and the ball plunger is installed in the mounting hole 232 and partially protrudes out of the mounting hole 232.

The front surface of the circuit board 300, i.e. the surface facing away from the second station 211, is provided with a welding spot welded with the welding end of the upper cable core, and the back surface of the circuit board 300, i.e. the surface facing towards the second station 211, is provided with a welding spot welded with the welding end of the lower cable core. The second station 211 is provided with a through hole 212 penetrating through the second base 21, and when the circuit board 300 is placed in the second station 211, the through hole 212 is arranged corresponding to a welding spot on the back surface of the circuit board 300. The second station 211 is further provided with a clamping groove 213, and the clamping groove 213 is arranged along the first direction and extends from the edge of the through hole 212 to one side of the second base 21 facing the first base 11. The clamping groove 213 is used for placing the lower cable core, so that the welding end of the lower cable core can extend to the center of the through hole 212, and the lower cable core is convenient to be welded with the back surface of the circuit board 300 through the through hole 212. Preferably, the depth of the clamping groove 213 is smaller than or equal to the diameter of the wire core, so that the circuit board 300 and the second base 21 can clamp and fix the lower-row wire core when the circuit board 300 is pressed and fixed.

Referring to fig. 1 and 7, the rotation mechanism includes a connection base 31, a connection plate 32, and a pin 33. Wherein, the first base 11 is provided with connecting seats 31 on two sides of the second direction, the connecting seats 31 are provided with first connecting holes 311, the second base 21 is provided with connecting plates 32 on two sides of the second direction, the connecting plates 32 are provided with second connecting holes 321, the connecting seats 31 on the same side are partially attached to the connecting plates 32 so that the first connecting holes 311 and the second connecting holes 321 are corresponding, the pin shafts 33 are parallel to the second direction, and the pin shafts 33 are provided with two first connecting holes 311 and second connecting holes 321 respectively penetrating through the two sides so that the second carrier 20 can rotate relative to the first carrier 10.

To fix the rotational position of the second carrier 20 relative to the first carrier 10, the rotational mechanism further includes a lock block 34. In the illustrated embodiment, the locking block 34 is a rectangular block structure, the connecting seat 31 is concavely provided with a sliding groove 312, the locking block 34 is slidably disposed in the sliding groove 312 along the first direction, the connecting plate 32 has an arc-shaped side wall 322, and when the second carrier 20 rotates to a certain position, the locking block 34 is operable to slide so that the locking block 34 abuts against the arc-shaped side wall 322, and the second carrier 20 cannot continue to rotate, thereby locking the rotation position of the second carrier 20 relative to the first carrier 10.

Preferably, the locking block may be locked by a round head screw 35. Specifically, the locking block 34 is provided with a kidney-shaped hole 341, one side wall of the chute 312 is provided with a threaded hole 314, the other side wall is provided with a locking hole 313 with a hole diameter larger than the width of the kidney-shaped hole 341, the round head screw 35 sequentially penetrates through the locking hole 313 and the kidney-shaped hole 341 and the tail end is in threaded connection with the threaded hole 314, and the head diameter of the round head screw 35 is smaller than the hole diameter of the locking hole 313 and larger than the width of the kidney-shaped hole 341. Tightening the round head screw 35 to clamp the locking block 34 between the head of the round head screw 35 and the side wall of the chute 312, so as to lock the locking block 34; by unscrewing the round head screw 35, the locking block 34 can slide in the sliding groove 312, and the rod body of the round head screw 35 cooperates with the kidney-shaped hole 341 to limit the locking block 34.

Of course, in other embodiments, the rotational position of the second carrier 20 may be locked by other engagement structures. For example, a plurality of small holes are formed in the side wall of the connecting plate 32, the locking block 34 is provided with a protruding block, and the protruding block is locked into different small holes by sliding the locking block 34 during the rotation of the connecting plate 32, so as to lock the rotation position of the second carrier 20.

The number of the first stations 111 is not limited, and one or more may be provided. In the illustrated embodiment, the first stations 111 are arranged at intervals along the second direction, correspondingly, the second stations 211 are arranged at intervals and correspond to the first stations 111 one by one, and the pressing blocks 22 are arranged at intervals and correspond to the second stations 211 one by one. Therefore, the welding fixture for the circuit board 300 can weld a plurality of wire bodies 200 and a plurality of circuit boards 300 at the same time, so that the working efficiency of operators is further improved.

In addition, referring to fig. 8, the present application further provides an operation method applied to the above-mentioned welding fixture for circuit board 300, the method includes:

s1: the wire body 200 is placed in the first station 111, the pressing plate 12 is rotated to fix the wire body 200, the lower wire core in the wire body 200 is placed in the clamping groove 213, and the welding end of the lower wire core corresponds to the through hole 212.

Specifically, the wire body 200 is placed in the first station 111, and the pressing plate 12 is rotated by pulling the buckling position and is connected and locked with the first base 11, so that the wire body 200 is fixed. The end of the wire body 200 facing the second carrier 20 is exposed with an upper wire core and a lower wire core, the lower wire core is manually operated to be placed in the clamping groove 213, and the welding end of the lower wire core is correspondingly positioned at the center of the through hole 212.

S2: the circuit board 300 is placed in the second station 211, and the pressing block 22 and the pressing bar 23 are sequentially rotated, so that the pressing bar 23 presses the pressing block 22, the pressing block 22 presses the circuit board 300, and the circuit board 300 presses the lower cable core in the clamping groove 213.

Specifically, the circuit board 300 is placed in the second station 211, the circuit board 300 and the second base 21 clamp the lower cable core, the pressing block 22 is rotated to clamp the pressing block 22 and the second base 21 to the circuit board 300, the pressing bar 23 is rotated and connected and locked with the second base 21, the pressing block 22 presses the circuit board 300 under the elastic force of the elastic piece 231, and the circuit board 300 presses the lower cable core in the clamping groove 213.

S3: the second carrier 20 is rotated to form an included angle of 90 degrees with the first carrier 10, and the lower cable core is welded with the welding spot on the back of the circuit board 300 through the through hole 212 on the side of the second base 21 facing away from the second station 211.

Specifically, referring to fig. 3 and 4, the second carrier 20 is rotated to form an angle of 90 ° with the first carrier 10, the lower cable core is bent, the locking block 34 is slid to abut against the arc-shaped side wall 322 and lock the locking block 34, so as to fix the relative positions of the first carrier 10 and the second carrier 20. The operator welds the welding end of the lower cable core to the back welding spot of the circuit board 300 through the through hole 212 at the side of the second base 21 facing away from the second station 211.

S4: the second carrier 20 is rotated to form an included angle of 180 degrees with the first carrier 10, so that the upper cable core in the cable body 200 is welded with the welding spot on the front surface of the circuit board 300.

Specifically, referring to fig. 2, after the welding of the lower cable core is completed, the locking block 34 is released, the second carrier 20 is rotated to form an angle of 180 ° with the first carrier 10 and is fixed again by the locking block 34, and then the welding point of the upper cable core and the front face of the circuit board 300 is welded. Wherein steps S3 and S4 may be exchanged in order. Thus, the welding operation of the double-row core in the wire body 200 and the front and back sides of the circuit board 300 is completed.

In summary, according to the jig for welding and fixing a circuit board and the method for operating the same, the first carrier 10 and the second carrier 20 are used for fixing the wire body 200 and the circuit board 300 respectively, the second carrier 20 can rotate relative to the first carrier 10 by arranging the rotating mechanism, and when the second carrier 20 rotates to a proper position, an operator can weld the lower flat cable core of the wire body 200 with the back surface of the circuit board 300 through the through hole 212 arranged on the second station 211. Thus, the double-sided welding of the wire body 200 and the circuit board 300 can be completed without taking down the circuit board 300, the operation is convenient, and the working efficiency of operators is greatly improved.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. The welding fixture for the circuit board is characterized by comprising a first carrier for clamping a wire body and a second carrier for clamping the circuit board, wherein the first carrier and the second carrier are arranged side by side at intervals along a first direction and are hinged through a rotating mechanism;

the second carrier comprises a second base, a pressing strip and a pressing block, a second station corresponding to the first station is arranged on the second base, the pressing strip is hinged to one end, located in the second direction, of the second base, the pressing block is hinged to one side, away from the first base, of the second base and corresponds to the second station, and a through hole is formed in the second station, corresponding to a welding point on the back of the circuit board; the first direction is perpendicular to the second direction;

the second base is provided with a clamping groove, and the clamping groove is arranged along the first direction and extends from the edge of the through hole to one side of the second base, which faces the first base.

2. The jig for soldering and fixing a circuit board according to claim 1, wherein the depth of the clamping groove is smaller than or equal to the diameter of the core in the wire body.

3. The welding fixture of the circuit board according to claim 1, wherein the rotating mechanism comprises a connecting seat, a connecting plate and a pin shaft, the connecting seat is arranged on two sides of the first base in the second direction, a first connecting hole is formed in the connecting seat, the connecting plate is arranged on two sides of the second base in the second direction, a second connecting hole is formed in the connecting plate, and the pin shaft is arranged in the first connecting hole and the second connecting hole on the same side in a penetrating manner.

4. The jig of claim 3, wherein the rotating mechanism further comprises a locking block slidably disposed on the connecting base along the first direction, the connecting plate having an arcuate sidewall, the locking block being operatively abutted to the arcuate sidewall to lock the rotational position of the second carrier relative to the first carrier.

5. The jig for soldering and fixing a circuit board according to claim 1, wherein one end of the pressing plate is connected to the first base, and the other end is magnetically connected to the first base or is snap-connected to the first base.

6. The jig for welding and fixing a circuit board according to claim 1, wherein one end of the pressing bar is hinged to the second base, and the other end of the pressing bar is connected to the second base in a fastening manner.

7. The jig for welding and fixing a circuit board according to claim 6, wherein an elastic member is provided on a side of the pressing bar facing the pressing block in the rotation direction.

8. The jig for welding and fixing a circuit board according to claim 1, wherein the first station is provided with a plurality of first stations and is arranged at intervals along the second direction, and the second station and the pressing block are respectively provided with a plurality of second stations.

9. A method of operation for a circuit board solder fixture as claimed in any one of claims 1 to 8, comprising the steps of: