CN114211083B

CN114211083B - Automatic cross-wiring welding device and method

Info

Publication number: CN114211083B
Application number: CN202111640773.2A
Authority: CN
Inventors: 张明亮; 卞玉柱; 王季; 熊强; 麻思达; 陈朝峰
Original assignee: Beijing Institute of Radio Measurement
Current assignee: Beijing Institute of Radio Measurement
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2023-03-14
Anticipated expiration: 2041-12-29
Also published as: CN114211083A

Abstract

The invention relates to an automatic cross-connection wire welding device and method, wherein the welding device comprises a bracket, automatic welding equipment, a locking bottom plate and a cross-connection wire positioning tool; the assembling platform is provided with a supporting block, a horizontally arranged supporting plate is installed on the supporting block, the locking bottom plate is assembled on the supporting plate, the peripheral side edge of the locking bottom plate is further provided with a locking mechanism, and the jumper positioning tool is locked and positioned on the locking bottom plate through the locking mechanism. The jumper positioning tool can be locked and fixed on the locking bottom plate, and jumper wires on the jumper positioning tool are automatically welded by using automatic welding equipment on the assembly cross beam at the top of the support, so that the problems of high time consumption, high cost and low production efficiency when handheld welding is used in application scenes of difficult, large and large quantities of jumper wires on a printed board in welding and positioning.

Description

Automatic cross-wiring welding device and method

Technical Field

The invention relates to the related field of jumper wire automatic welding, in particular to an automatic jumper wire welding device and method.

Background

The printed board and the printed board are connected by using a jumper wire for welding. In automated bonding, the relative position of the jumper wire and the bonding pad can affect the bonding quality. And the working method of the automatic welding equipment comprises the steps that the soldering bit descends to the soldering pad tin feeding mechanism to feed soldering tin to the jumper wire for welding, and the welding quality qualified rate of the soldering wire is seriously influenced because whether the soldering wire is positioned at the soldering pad or the soldering bit is pressed down to cause the soldering wire to deviate from the position and the like. The handheld welding is time-consuming, high in cost and low in production efficiency when used in application scenes that the printed board jumper wires are difficult to weld and position, large in quantity and large in batch.

Disclosure of Invention

The invention provides an automatic cross-wiring welding device and method for solving one or more of the problems in the prior art.

The technical scheme for solving the technical problems is as follows: an automatic jumper welding device comprises a support, automatic welding equipment, a locking bottom plate and a jumper positioning tool, wherein the automatic welding equipment is installed on an assembling cross beam at the top of the support, and the jumper positioning tool is installed on an assembling platform at the bottom of the support; the assembling platform is provided with a supporting block, a supporting plate which is horizontally arranged is installed on the supporting block, the locking bottom plate is assembled on the supporting plate, the periphery side edge of the locking bottom plate is further provided with a locking mechanism, and the jumper positioning tool is locked and positioned on the locking bottom plate through the locking mechanism.

The invention has the beneficial effects that: according to the invention, the locking bottom plate is arranged on the support plate below the automatic welding equipment, the jumper positioning tool can be locked and fixed on the locking bottom plate, then the automatic welding equipment on the cross beam assembled at the top of the support is utilized to automatically weld the jumper wire on the jumper positioning tool, and the problems of high time consumption, high cost and low production efficiency when handheld welding is used in application scenes of difficult jumper welding positioning, large quantity and large batch on a printed board can be solved.

On the basis of the technical scheme, the invention can be further improved as follows.

Furthermore, all sides border of locking bottom plate is equipped with downwardly extending's location limit, the locking bottom plate passes through location limit lock is in the backup pad, the location limit pass through the connecting piece with all side wall location of backup pad.

The beneficial effect of adopting the further scheme is that: the positioning edges are arranged on the edges of the periphery of the locking bottom plate, so that the positioning edges can be positioned with the walls of the periphery of the supporting plate, and the influence on the assembly of the jumper positioning tool caused by connection at the top of the locking bottom plate is avoided.

Furthermore, the locking bottom plate and the jumper positioning tool are of square structures respectively, the positioning edge at least one corner of the locking bottom plate of the square structure is positioned with the peripheral side wall of the supporting plate through a connecting piece, and the opposite peripheral side edges of the locking bottom plate of the square structure are provided with locking mechanisms respectively.

The beneficial effect of adopting the further scheme is that: the locking positioning can be carried out from the opposite side edges of the jumper positioning tool, and the locking structure is stable and reliable.

Furthermore, the upper side surface of the locking bottom plate is provided with a guide rod, the jumper positioning tool is provided with a guide hole matched with the guide rod, the jumper positioning tool penetrates through the guide hole through the guide rod and is assembled on the locking bottom plate, and each locking mechanism is correspondingly provided with one guide rod.

The beneficial effect of adopting the above further scheme is: through set up the guide bar on the locking bottom plate, can assemble jumper wire location frock on the locking bottom plate along the guide bar, the assembly precision is high, stable in structure.

Furthermore, locking mechanism includes screw rod, handle and connecting block, but the articulated of screw rod one end luffing motion articulate on the locking bottom plate, connecting block threaded connection be in on the screw rod, the handle articulate on the connecting block and articulated axis with the screw rod is perpendicular, the handle with connecting block articulated part is the cam structure.

The beneficial effect of adopting the above further scheme is: through setting up the cam structure, can utilize the cam structure to fix a position the frock with the jumper wire and lock on the locking bottom plate.

Furthermore, the peripheral side edge of the jumper positioning tool is provided with a locking groove corresponding to the screw, and after the jumper positioning tool is clamped into the locking groove through the screw, the handle is pulled to perform locking and positioning.

The beneficial effect of adopting the above further scheme is: through setting up the locking groove, the screw rod card of the locking mechanism of being convenient for is gone into the locking inslot and is locked fixedly.

The jumper wire positioning tool comprises an upper cover, a printed board assembling frame, an upper positioning assembly and a lower positioning assembly, wherein the printed board assembling frame is arranged on the locking bottom plate, the upper cover covers the printed board assembling frame, a printed board assembling hollow is arranged in the middle of the printed board assembling frame, the upper cover is provided with an operation hollow corresponding to the printed board assembling hollow, the upper positioning assembly is installed on the lower side surface of the upper cover, the lower positioning assembly is installed on the upper side surface of the printed board assembling frame and located on the peripheral side of the printed board assembling hollow, the lower positioning assembly is provided with a lower positioning groove, and the upper positioning assembly and the lower positioning groove of the lower positioning assembly are correspondingly arranged and used for compressing and positioning a jumper wire in the lower positioning groove.

The beneficial effect of adopting the further scheme is that: the jumper wire in the lower positioning groove is compressed and positioned by the corresponding arrangement of the upper positioning assembly and the lower positioning groove, so that the jumper wire can be disassembled and positioned, and the problem that accurate and quick welding cannot be carried out due to the elasticity of the jumper wire and the non-limiting characteristic of surface mount assembly is solved.

Further, the lower positioning assembly comprises a front end positioning block and a rear end positioning block, the front end positioning block and the rear end positioning block are arranged in a front-back mode, and a supporting step for supporting the printed board is further arranged on the front side of the front end positioning block; the upper end of the front end positioning block is provided with a plurality of front end positioning grooves, the upper end of the rear end positioning block is provided with a plurality of rear end positioning grooves, and the plurality of front end positioning grooves and the plurality of rear end positioning grooves are arranged in a one-to-one correspondence manner; the front end positioning groove is a through groove which is through from front to back, and the rear end positioning groove is a semi-through groove with a closed rear end and an open front end.

The beneficial effect of adopting the further scheme is that: through setting up the front end constant head tank, can fix a position the front end of jumper wire, through setting up the rear end constant head tank, can fix a position the rear end of jumper wire, and then realize fixing a position around the jumper wire, make the jumper wire location stable, guaranteed welding quality. Through setting up front end constant head tank to the logical groove that link up around, can expose and the table pastes the jumper wire front end on the printed board. The rear end positioning groove is arranged to be a semi-through groove with a closed rear end and an open front end, the rear end of the jumper wire can be abutted to the semi-through groove, the jumper wire is positioned in a closed mode, and the jumper wire is prevented from being separated from the positioning groove.

Furthermore, the upper positioning assembly comprises an end positioning block and a pressing block, the end positioning block is fixed on the lower side surface of the upper cover, the pressing block can be arranged on the lower side surface of the upper cover in a back-and-forth moving mode, a plurality of positioning bulges are arranged on the end positioning block, and the positioning bulges and the front end positioning grooves are arranged in a one-to-one correspondence mode and are used for compressing and positioning the front ends of the wires of the jumper wires in the front end positioning grooves; the front end positioning groove is a chute which is high at the back and low at the front, and the lower surface of the positioning bulge is an inclined surface matched with the chute.

The beneficial effect of adopting the further scheme is that: the positioning bulge on the end positioning block can be inserted into the corresponding front end positioning groove and used for compressing and positioning the front end of the jumper wire in the front end positioning groove, and the pressing block can be used for compressing and positioning the rear end of the jumper wire in the rear end positioning groove. In order to make the front ends of the wires of the jumpers stick to the printed board, a plurality of positioning protrusions are needed to respectively and correspondingly press and position the front ends of the wires of the jumpers. In order to make the front end of the wire of the jumper wire stick to the printed board on the front side, the front end of the wire can be inclined forward and downward and stick to the printed board by utilizing the matching of the inclined plane of the lower surface of the positioning bulge and the inclined groove of the front end positioning groove.

An automatic cross-connection wire welding method is realized by adopting the welding device, and comprises the following steps:

s1, assembling a printed board assembly frame of a jumper positioning tool on a locking bottom plate, and then installing a printed board in a printed board assembly hollow of the printed board assembly frame;

s2, assembling the jumper wire in a lower positioning groove on a printed board assembling frame, then arranging an upper cover on the printed board assembling frame, pressing and positioning the jumper wire in the lower positioning groove, and attaching the front end head of the jumper wire to the upper surface of the printed board;

s3, locking and fixing the upper cover and the printed board assembly frame on the locking bottom plate through a locking mechanism on the locking bottom plate;

and S4, welding the jumper wire on the printed board by using automatic welding equipment.

The invention has the beneficial effects that: the method is convenient to operate, the positioning and welding precision of the jumper wire is high, and the problems of long time consumption, high cost and low production efficiency when the handheld welding is used in the application scenes of difficult positioning, large quantity and large batch of jumper wires on the printed board can be solved.

Drawings

FIG. 1 is a first schematic perspective view of an automated cross-wire welding apparatus according to the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic front view of the automated cross-wire welding apparatus of the present invention;

FIG. 4 is an enlarged view of the portion B in FIG. 3;

FIG. 5 is a schematic perspective view of an automated cross-wire welding device according to the present invention;

FIG. 6 is a schematic structural view of the printed board and the jumper wire after being welded;

fig. 7 is a schematic perspective exploded view of a locking base plate, an upper cover and a printed board assembly frame according to the present invention;

FIG. 8 is a schematic view of the underside of the upper cover of the present invention;

fig. 9 is a schematic structural view of the front end of the wire of the jumper wire of the present invention engaged with the positioning projection.

In the drawings, the components represented by the respective reference numerals are listed below:

1. an upper cover; 11. a guide hole; 12. a long hole; 13. adjusting the bolt; 14. a locking groove; 15. hollowing out;

2. locking the bottom plate; 21. assembling and hollowing out the printed board; 22. a guide bar; 24. a printed board assembly frame; 25. positioning the edge; 26. a connecting member; 27. positioning holes;

3. a locking mechanism; 31. a screw; 32. a handle; 33. connecting blocks;

4. a front end positioning block; 41. a front end positioning groove; 42. supporting a step;

5. a rear end positioning block; 51. a rear end positioning groove;

6. a support; 61. assembling a cross beam; 62. assembling a platform; 63. a support block; 64. a support plate;

7. an end positioning block; 71. positioning the projection; 72. a lower surface;

8. briquetting; 9. printing a board; 91. a jumper wire; 92. a lead front end; 93. a wire rear end;

100. automated welding equipment; 101. a welding head; 102. and (5) cleaning the mechanism.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

The printed board assembly hollow 21 in the middle of the printed board assembly frame 24 is used as the center of the placement of the jumper wire 91 and is also the front end of the placement position of the jumper wire 91, the outer sides of the periphery of the printed board assembly hollow 21 are used as the rear end of the placement of the jumper wire 91, the jumper wire 91 is placed around the printed board assembly hollow 21, namely, the jumper wire 91 is placed around the printed board assembly hollow 21, the front end 92 of a lead wire of the jumper wire 91 extends towards the direction close to the printed board assembly hollow 21, and the rear end 93 of the lead wire of the jumper wire 91 extends towards the direction far away from the printed board assembly hollow 21.

As shown in fig. 1 to 9, the automatic jumper welding device of the embodiment includes a bracket 6, an automatic welding device 100, a locking base plate 2, and a jumper positioning tool, wherein the automatic welding device 100 is installed on an assembling beam 61 at the top of the bracket 6, and the jumper positioning tool is installed on an assembling platform 62 at the bottom of the bracket 6; the assembling platform 62 is provided with a supporting block 63, a supporting plate 64 horizontally arranged is mounted on the supporting block 63, the locking bottom plate 2 is assembled on the supporting plate 64, the periphery of the locking bottom plate 2 is further provided with a locking mechanism 3, and the jumper positioning tool is locked and positioned on the locking bottom plate 2 through the locking mechanism 3.

As shown in fig. 1 to 5, the locking base plate 2 of the present embodiment is provided with a positioning edge 25 extending downward at the peripheral side edge, the locking base plate 2 is fastened to the support plate 64 by the positioning edge 25, and the positioning edge 25 is positioned with the peripheral side wall of the support plate 64 by the connecting member 26. The positioning edge is arranged at the edge of the periphery of the locking bottom plate, so that the positioning edge can be positioned with the wall of the periphery of the supporting plate, and the phenomenon that the top of the locking bottom plate is connected to influence the assembly of the jumper positioning tool is avoided.

One specific scheme of this embodiment is that, as shown in fig. 5, the locking bottom plate and the jumper positioning tool are respectively of a square structure, and the positioning edge at least one corner of the locking bottom plate of the square structure is positioned with the peripheral side wall of the support plate through the connecting piece.

Specifically, the connecting member 26 may be a bolt, a positioning hole 27 is formed in the positioning edge 25, and the bolt passes through the positioning hole 27 and abuts against the peripheral sidewall of the support plate 64 to perform locking and positioning; alternatively, the support plate 64 may be provided with locking holes on its peripheral side wall, and the bolts may be passed through the positioning holes 27 and locked in the locking holes for locking and positioning.

As shown in fig. 7, the upper side of the locking base plate 2 of this embodiment is provided with a guide rod 22, the jumper positioning tool is provided with a guide hole 11 matched with the guide rod 22, the jumper positioning tool passes through the guide hole 11 through the guide rod 22 and is assembled on the locking base plate 2, and each locking mechanism 3 is correspondingly provided with one guide rod 22. Through set up the guide bar on the locking bottom plate, can assemble jumper wire location frock on the locking bottom plate along the guide bar, the assembly precision is high, stable in structure.

As shown in fig. 1 to 9, the locking base plate 2 and the jumper positioning tool of the present embodiment are respectively square, and the locking mechanisms 3 are respectively disposed on two opposite peripheral edges of the locking base plate 2. The locking positioning can be carried out from the opposite side edges of the jumper positioning tool, and the locking structure is stable and reliable.

As shown in fig. 7, the locking mechanism 3 of the present embodiment includes a screw 31, a handle 32, and a connecting block 33, one end of the screw 31 is hinged to the locking base plate 2 in an up-and-down swinging manner, the connecting block 33 is connected to the screw 31 in a threaded manner, the handle 32 is hinged to the connecting block 33 with a hinge axis perpendicular to the screw 31, and a portion of the handle 32 hinged to the connecting block 33 is in a cam structure. Through setting up the cam structure, can utilize the cam structure to fix a position the frock with the jumper wire and lock on the locking bottom plate.

As shown in fig. 7, the locking groove 14 corresponding to the screw 31 is provided at the peripheral edge of the jumper positioning tool in this embodiment, and after the jumper positioning tool is clamped into the locking groove 14 by the screw 31, the handle 32 is pulled to perform locking positioning. Through setting up the locking groove, the screw rod card of the locking mechanism of being convenient for is gone into the locking inslot and is locked fixedly.

As shown in fig. 1 to 9, the jumper wire positioning tool of the embodiment includes an upper cover 1, a printed board assembly frame 24, an upper positioning component and a lower positioning component, the printed board assembly frame 24 is arranged on a locking bottom plate 2, the upper cover 1 covers the printed board assembly frame 24, a printed board assembly hollow 21 is arranged in the middle of the printed board assembly frame 24, the upper cover 1 has an operation hollow 15 corresponding to the printed board assembly hollow 21, the upper positioning component is installed on the lower side surface of the upper cover 1, the lower positioning component is installed on the upper side surface of the printed board assembly frame 24 and located on the peripheral side of the printed board assembly hollow 21, a lower positioning groove is arranged on the lower positioning component, the upper positioning component corresponds to the lower positioning groove of the lower positioning component and is used for compressing and positioning jumper wires in the lower positioning groove. Because of when welding, the soldering iron can exert certain pressure to the jumper wire side direction, consequently must fix the wire front end of jumper wire near the welding position, simultaneously for welding quality, the wire must continuously guarantee the contact pad, set up the jumper wire in the constant head tank down through the setting, and utilize locating component to compress tightly fixedly the jumper wire, the rethread locking mechanical system locks, can effectively continuously fix a position the jumper wire, and keep continuously contacting the pad of printed circuit board with the wire front end of jumper wire. The jumper wire in the lower positioning groove is compressed and positioned by the corresponding arrangement of the upper positioning assembly and the lower positioning groove, so that the quick disassembly and the adaptive positioning of the jumper wire can be realized, and the problem that the jumper wire cannot be accurately and quickly welded due to the elasticity of the jumper wire and the non-limiting characteristic of surface mount assembly is solved.

As shown in fig. 1 to 5 and 9, the lower positioning assembly of the present embodiment includes a front end positioning block 4 and a rear end positioning block 5, the front end positioning block 4 and the rear end positioning block 5 are arranged in front of and behind each other, a supporting step 42 for supporting a printed board 9 is further disposed on the front side of the front end positioning block 4, and the depth of the supporting step 42 is slightly greater than the sum of the thickness of the printed board and the diameter of a jumper, so that the printed board is just placed on the supporting step 42, and the printed board does not move, and the influence of excessive exposure of the jumper on automatic welding is avoided; the upper end of the front end positioning block 4 is provided with a plurality of front end positioning grooves 41, the upper end of the rear end positioning block 5 is provided with a plurality of rear end positioning grooves 51, and the plurality of front end positioning grooves 41 and the plurality of rear end positioning grooves 51 are arranged in a one-to-one correspondence manner; the front end positioning groove 41 is a through groove which is through from front to back, and the rear end positioning groove 51 is a semi-through groove with a closed rear end and an open front end. Through setting up the front end constant head tank, can fix a position the front end of jumper wire, through setting up the rear end constant head tank, can fix a position the rear end of jumper wire, and then realize fixing a position around the jumper wire, make the jumper wire location stable, guaranteed welding quality. Through setting up front end constant head tank to the logical groove that link up around, can expose and the table pastes the jumper wire front end on the printed board. The rear end positioning groove is a semi-through groove with a closed rear end and an open front end, so that the rear end of the jumper wire can be abutted to the semi-through groove, the jumper wire is closed and positioned, and the jumper wire is prevented from being pulled out of the positioning groove.

As shown in fig. 4 and 8, the upper positioning assembly of the present embodiment includes an end positioning block 7 and a pressing block 8, the end positioning block 7 is fixed on the lower side surface of the upper cover 1, the pressing block 8 is movably disposed on the lower side surface of the upper cover 1 in a forward and backward manner, the end positioning block 7 is provided with a plurality of positioning protrusions 71, the plurality of positioning protrusions 71 and the plurality of front end positioning slots 41 are arranged in a one-to-one correspondence manner, and are used for pressing and positioning the front ends of the wires of the jumper wires 91 in the front end positioning slots 41; the front end positioning groove 41 is a chute with a high back and a low front, and the lower surface 72 of the positioning projection 71 is an inclined surface matched with the chute. The positioning protrusion 71 of the end positioning block 7 can be inserted into the corresponding front end positioning slot 41 and press and position the front end 92 of the jumper wire 91 in the front end positioning slot 41, and the pressing block 8 can press and position the rear end 93 of the jumper wire 91 in the rear end positioning slot 51. In order to attach the lead ends 92 of the jumper wires 91 to the printed board 9, the lead ends 92 of the jumper wires 91 need to be pressed and positioned by the positioning projections 71. In order to make the front end of the wire of the jumper wire stick on the printed board at the front side, the front end of the wire can be inclined forward and downward and stick on the printed board by utilizing the matching of the inclined plane of the lower surface of the positioning bulge and the inclined groove of the front end positioning groove. The lower positioning groove of the lower positioning assembly can fix the front end of the wire of the jumper wire in the left-right direction, the efficiency of placing the jumper wire can be improved, the positioning bulge of the end positioning block is matched, meanwhile, the jumper wire can be fixed in the up-down direction, and the inclined surface of the lower surface 72 of the positioning bulge is matched with the inclined groove, so that the front end of the wire of the jumper wire can be tightly attached to a pad of a printed board.

The positioning protrusion 71 of this embodiment may be made of a high temperature resistant material.

In a preferred embodiment of this embodiment, as shown in fig. 8, the end positioning block 7 of the upper positioning assembly of this embodiment may be adhered to the lower side surface of the upper cover 1 by using a double-sided adhesive tape, or may be fixed to the lower side surface of the upper cover by using a screw. The pressing block 8 of the upper positioning assembly is movably arranged on the upper cover 1, a long hole 12 extending forwards and backwards is formed in the upper cover 1, the long hole 12 is connected to the upper cover 1 through an adjusting bolt 13, and the upper positioning assembly can be correspondingly arranged with the rear end positioning block 5 on the printed board assembly frame 24.

The middle of the printed board assembly frame 24 of the embodiment forms a square printed board assembly hollow 21, and two opposite sides of the printed board assembly hollow 21 are respectively provided with at least one group of lower positioning components.

A specific scheme of this embodiment is, as shown in fig. 1 and fig. 2, locking grooves 14 are respectively formed in corresponding positions on the peripheral side edges of the upper cover 1 and the printed board assembly frame 24, and guide holes 11 are respectively formed in corresponding positions on the upper cover 1 and the printed board assembly frame 24, so as to facilitate subsequent accurate positioning and locking fixation.

The automatic cross-connection wire welding device of the embodiment is mainly aimed at automatic welding equipment, manual welding operation is not needed, printed boards of various specifications correspond to a cross-connection wire positioning tool, and the distance between the front end positioning block 4 and the rear end positioning block 5 in the printed board assembling frame 24 does not need to be adjusted. The pressing block 8 on the upper cover 1 can be specifically adjusted according to needs, and can also not be adjusted.

The working process of the automatic cross-connection wire welding device of the embodiment is to assemble the locking base plate 2 on the support plate 64, and then to use the connecting piece to penetrate the positioning hole on the positioning edge 25 of the locking base plate 2 and abut against or fix the locking base plate on the peripheral side wall of the support plate 64 for positioning and assembling. Aiming at printed boards with different sizes, a proper printed board assembly frame 24 is selected, the printed board assembly frame 24 firstly passes through a guide rod 22 on the locking bottom plate 2 along a guide hole 11, then the printed board is placed in a printed board assembly hollow 21 of the printed board assembly frame 24, the end part of the peripheral side of the printed board 9 is abutted against a supporting step 42 of a front end positioning block 4, as shown in figures 7 and 9, a jumper wire is placed on the printed board assembly frame 24, the front end 92 of a lead of the jumper wire 91 is placed in a front end positioning groove 41 of the front end positioning block 4, the front end 92 of the lead of the jumper wire 91 extends out from the front end positioning groove 41 and is attached to the printed board 9 of the supporting step 42, the rear end 93 of the wire of the jumper wire 91 is arranged in the rear end positioning groove 51 of the rear end positioning block 5, the rear end 93 of the wire is abutted against the closed end of the rear end positioning groove 51, as shown in fig. 7 and 9, the guide rod 22 and the guide hole 11 are used for guiding the guide hole 11 of the upper cover 1 to penetrate through the guide rod 22 on the locking bottom plate 2, the upper cover 1 is pressed on the printed board assembly frame 24, the positioning protrusions 71 at the end part of the end positioning block 7 on the upper cover 1 are inserted into the front end positioning grooves 41 in a one-to-one correspondence manner, the positioning protrusions 71 are used for compressing and positioning the front ends 92 of the wires in the front end positioning grooves 41, and the pressing block 8 is used for compressing and positioning the rear end 93 of the wire in the rear end positioning groove 51. And then, the screw 31 of the locking mechanism 3 is rotated and clamped into the locking grooves at the peripheral edges of the upper cover 1 and the printed board assembly frame 24 to realize the clamping and positioning of the screw, the upper cover 1 and the printed board assembly frame 24. Then, the handle 32 is pulled, and the upper cover 1 and the printed board assembly frame 24 are pressed and fixed on the locking bottom plate 2 by using the irregular cam structure of the handle.

The automatic welding equipment 100 of the embodiment can adopt existing equipment, and the embodiment provides a device which is matched with the automatic welding equipment 100 to be used for automatically welding the jumper wire 91 on the printed board 9, after the jumper wire 91 is pressed and positioned on the locking bottom plate 2 by the upper cover and the printed board assembly frame 24, the coordinate of the jumper wire and the coordinate of the automatic welding equipment 100 are relatively fixed, and then the welding head 101 of the automatic welding equipment 100 is cleaned by the cleaning mechanism 102 and then the jumper wire 91 is welded on the printed board 9. And after the printed board is welded with the jumper wire, the upper cover and the printed board assembling frame are detached, and the printed board is taken out.

An automatic cross-wiring welding method is realized by adopting the welding device, and comprises the following steps:

s1, assembling a printed board assembly frame 24 of a jumper positioning tool on a locking bottom plate 2, and then installing a printed board 9 in a printed board assembly hollow 21 of the printed board assembly frame 24;

s2, assembling the jumper wire 91 in a lower positioning groove on the printed board assembly frame 24, then covering the upper cover 1 on the printed board assembly frame 24, pressing and positioning the jumper wire 91 in the lower positioning groove, and enabling the front end head part of the jumper wire 91 to be attached to the upper surface of the printed board 9;

s3, the upper cover 1 and the printed board assembly frame 24 are locked and fixed on the locking bottom plate 3 through the locking mechanism 3 on the locking bottom plate 2;

and S4, welding the jumper wire 91 on the printed board 9 by using the automatic welding equipment 100.

This embodiment can fix jumper wire location frock locking on the locking bottom plate through setting up the locking bottom plate in the backup pad of automatic welding equipment below, then utilizes the automatic welding equipment on the assembly crossbeam in support top to carry out automated bonding to the jumper wire on the jumper wire location frock, can solve on the printed board the jumper wire welding position difficult, many, the big problem of consuming time of using handheld welding under the big application scene in batches of using that is with high costs, production efficiency hang.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

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. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. An automatic cross-connection wire welding device is characterized by comprising a support, automatic welding equipment, a locking bottom plate and a cross-connection wire positioning tool, wherein the automatic welding equipment is installed on an assembling cross beam at the top of the support; the assembling platform is provided with a supporting block, a supporting plate which is horizontally arranged is installed on the supporting block, the locking bottom plate is assembled on the supporting plate, the peripheral side edge of the locking bottom plate is also provided with a locking mechanism, and the jumper positioning tool is locked and positioned on the locking bottom plate through the locking mechanism;

the jumper wire positioning tool comprises an upper cover, a printed board assembling frame, an upper positioning assembly and a lower positioning assembly, wherein the printed board assembling frame is arranged on the locking bottom plate, the upper cover covers the printed board assembling frame, a printed board assembling hollow is arranged in the middle of the printed board assembling frame, the upper cover is provided with an operation hollow corresponding to the printed board assembling hollow, the upper positioning assembly is installed on the lower side surface of the upper cover, the lower positioning assembly is installed on the upper side surface of the printed board assembling frame and located on the periphery side of the printed board assembling hollow, the lower positioning assembly is provided with a lower positioning groove, and the upper positioning assembly and the lower positioning groove of the lower positioning assembly are correspondingly arranged and used for compressing and positioning the jumper wire in the lower positioning groove;

the lower positioning assembly comprises a front end positioning block and a rear end positioning block, the front end positioning block and the rear end positioning block are arranged in a front-back mode, and a supporting step for supporting the printed board is further arranged on the front side of the front end positioning block; the upper end of the front end positioning block is provided with a plurality of front end positioning grooves, the upper end of the rear end positioning block is provided with a plurality of rear end positioning grooves, and the plurality of front end positioning grooves and the plurality of rear end positioning grooves are arranged in a one-to-one correspondence manner; the front end positioning groove is a through groove which is communicated from front to back, and the rear end positioning groove is a semi-through groove with a closed rear end and an open front end;

the upper positioning assembly comprises an end positioning block and a pressing block, the end positioning block is fixed on the lower side surface of the upper cover, the pressing block can be arranged on the lower side surface of the upper cover in a back-and-forth moving mode, a plurality of positioning bulges are arranged on the end positioning block, the positioning bulges and the front end positioning grooves are arranged in a one-to-one correspondence mode and are used for compressing and positioning the front ends of the wires of the jumper wires in the front end positioning grooves; the front end positioning groove is a chute which is high at the back and low at the front, and the lower surface of the positioning bulge is an inclined surface matched with the chute.

2. The automatic crossover wire welding device as defined in claim 1, wherein a positioning edge extending downward is provided at a peripheral side edge of the locking bottom plate, the locking bottom plate is fastened to the support plate via the positioning edge, and the positioning edge is positioned with a peripheral side wall of the support plate via a connecting member.

3. The automatic cross-connection wire welding device of claim 2, wherein the locking bottom plate and the cross-connection wire positioning tool are of square structures respectively, the positioning edge at least one corner of the locking bottom plate of the square structure is positioned with the peripheral side wall of the supporting plate through a connecting piece, and the opposite peripheral side edges of the locking bottom plate of the square structure are provided with locking mechanisms respectively.

4. The automatic jumper welding device according to claim 1, wherein a guide rod is arranged on the upper side of the locking bottom plate, a guide hole matched with the guide rod is formed in the jumper positioning tool, the jumper positioning tool is assembled on the locking bottom plate by penetrating through the guide hole through the guide rod, and each locking mechanism is correspondingly provided with one guide rod.

5. The automatic cross-wiring welding device of claim 1, wherein the locking mechanism comprises a screw rod, a handle and a connecting block, one end of the screw rod is hinged to the locking bottom plate in a vertically-swinging mode, the connecting block is connected to the screw rod in a threaded mode, the handle is hinged to the connecting block, a hinge axis of the handle is perpendicular to the screw rod, and a portion, hinged to the connecting block, of the handle is of a cam structure.

6. The automatic jumper welding device of claim 5, wherein a locking groove corresponding to the screw is formed in the peripheral side edge of the jumper positioning tool, and the jumper positioning tool is locked and positioned by clamping the screw into the locking groove and then pulling the handle.

7. An automated cross-wire welding method, characterized in that it is implemented with the welding device of any one of claims 1 to 6, comprising the following steps:

s2, assembling the jumper wire in a lower positioning groove on a printed board assembling frame, then arranging an upper cover on the printed board assembling frame, pressing and positioning the jumper wire in the lower positioning groove, and enabling the front end of the jumper wire to be attached to the upper surface of the printed board;