Efficient series welding device and method for integrally welding two specifications of bonding wire molds in series

Abstract

The invention discloses an efficient series welding device and method for series welding of bonding wire dies of two specifications, and relates to the technical field of series welding of the bonding wire dies of the two specifications, the efficient series welding device comprises a workbench, the workbench is provided with two positioning and welding assemblies used for positioning and welding a bonding wire die A, and the two positioning and welding assemblies are arranged on the workbench; jacking oil cylinders located on the left side and the right side of the positioning and welding assembly respectively are fixedly arranged on the workbench, rod pieces are fixedly connected to the acting ends of piston rods of the two jacking oil cylinders, a lifting plate is fixedly arranged between the two rod pieces, and two positioning and pressing assemblies used for positioning and pressing a bonding wire mold B are arranged on the bottom surface of the lifting plate. The two positioning and pressing assemblies are located over the two positioning and welding assemblies correspondingly. The method has the beneficial effects that the positioning time of the bonding wire dies of the two specifications is greatly shortened, and the series welding efficiency of the bonding wire dies of the two specifications is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of welding two specifications of bonding wire dies together, in particular to an efficient welding device and method for welding two specifications of bonding wire dies together. Background Art

[0002] The bonding wire die is used to directly draw a large-diameter bonding wire into a small-diameter bonding wire. The drawn small-diameter bonding wire can be used for semiconductor packaging. The structure of the bonding wire die is as Figures 1 to 2 shown. The bonding wire die includes a disc 1 and a cylinder 2 fixedly connected together in sequence. The cylinder 2 is coaxial with the disc 1. A central hole 3 is opened in the middle of the bonding wire die, and the central hole 3 axially penetrates through the disc 1 and the cylinder 2 in sequence. By cooperating with a wire drawing machine, this kind of bonding wire die can directly draw a large-diameter bonding wire into a small-diameter bonding wire with the same diameter as the central hole 3.

[0003] There are two specifications of bonding wire dies produced in a certain workshop. One specification is the bonding wire die A4, and the other specification is the bonding wire die B5. The outer diameter of the cylinder 2 of the bonding wire die B5 is greater than the outer diameter of the cylinder 2 of the bonding wire die A4, and the diameter of the central hole 3 of the bonding wire die B5 is greater than the diameter of the central hole 3 of the bonding wire die A4. In order to continuously draw the large-diameter bonding wire, workers need to weld the two specifications of bonding wire dies together to obtain a finished die as Figure 3 shown. Among them, the two central holes 3 of the finished die are connected and coaxial. Workers use the two central holes 3 in this finished die to directly draw the large-diameter bonding wire respectively, so as to continuously draw the large-diameter bonding wire and then quickly produce the required small-diameter bonding wire.

[0004] The method for workers in the workshop to weld the two specifications of bonding wire dies together is as follows: S1. Workers take out a bonding wire die A4 and place the disc 1 of the bonding wire die A4 on the top surface of the machine table 6, as Figure 4 shown; S2. Workers take out a bonding wire die B5 and place the cylinder 2 of the bonding wire die B5 on the top surface of the cylinder 2 of the bonding wire die A4; then workers adjust the position of the bonding wire die B5 to make the cylinder 2 of the bonding wire die B5 coaxial with the cylinder 2 of the bonding wire die A4, and further ensure that the central hole 3 of the bonding wire die B5 is coaxial with the central hole 3 of the bonding wire die A4, thereby realizing the positioning of the bonding wire die B5 on the top surface of the bonding wire die A4, as Figure 5 shown; S3. The worker rotates the pressing plates 7 of the jigs on both sides of the machine table 6 downward so that the two pressing plates 7 press on the top surface of the disc 1 of the bonding wire die B5, thereby fixing the bonding wire die A4 and the bonding wire die B5 between the machine table 6 and the pressing plates 7, as Figure 6 shown. The purpose is to prevent the bonding wire die B5 from displacing relative to the bonding wire die A4 during the subsequent welding process; S4. The worker adjusts the position of the welding head 8 of the laser welding machine so that the welding head 8 faces the contact part between the cylinder 2 of the bonding wire die A4 and the cylinder 2 of the bonding wire die B5, thereby completing the positioning of the welding head 8, as Figure 7 shown; The worker turns on the laser welding machine, and the laser beam emitted by the welding head 8 irradiates on the contact part; Then, the welding head 8 makes a circumferential movement on the horizontal plane. When the welding head 8 rotates one circle, an annular weld scar can be welded at the contact part, thus finally realizing the series welding of two specifications of bonding wire dies into one body, and then producing a required finished die; S5. Taking away the finished die: The worker first turns off the laser welding machine, and then moves the welding head 8 away; Then the worker rotates the pressing plate 7 of the jig upward so that the pressing plate 7 is separated from the finished die; After separation, the worker takes away the finished die; S6. The worker repeats the operations of steps S1 - S5 in this way, and can continuously weld two specifications of bonding wire dies into one body, and then obtain multiple required finished dies.

[0005] However, although the method used in the workshop can weld two specifications of bonding wire dies into one body, in actual operation, the following technical defects are still reflected: I. In step S2, after the worker places the bonding wire die B5 on the top surface of the bonding wire die A4, the worker needs to frequently adjust the position of the bonding wire die B5 (because the outer diameter of the cylinder 2 of the bonding wire die B5 is not equal to the outer diameter of the cylinder 2 of the bonding wire die A4, and the two cylinders 2 cannot be quickly aligned), in order to ensure that the cylinder 2 of the bonding wire die B5 is coaxial with the cylinder 2 of the bonding wire die A4, and then to ensure that the central hole 3 of the bonding wire die B5 is coaxial with the central hole 3 of the bonding wire die A4, which leads to a long time required to position the bonding wire die B5 on the bonding wire die A4, and then reduces the series welding efficiency of two specifications of bonding wire dies.

[0006] II. In steps S1 - S3, through one set of tooling, only one finished die can be produced, and the daily task is to produce 130 - 140 such finished dies. The worker welds one by one, resulting in a long time required to produce the required number of finished dies, which undoubtedly further reduces the series welding efficiency of two specifications of bonding wire dies.

[0007] Therefore, there is an urgent need for a string welding device and method that can greatly shorten the positioning time of two specifications of bonding wire dies and greatly improve the string welding efficiency of two specifications of bonding wire dies. Summary of the Invention

[0008] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an efficient string welding device and method for string welding two specifications of bonding wire dies into one body, which can greatly shorten the positioning time of two specifications of bonding wire dies and greatly improve the string welding efficiency of two specifications of bonding wire dies.

[0009] The purpose of the present invention is achieved through the following technical solutions: An efficient string welding device for string welding two specifications of bonding wire dies into one body, which includes a workbench. There are two positioning and welding components on the workbench for positioning and welding the bonding wire die A. There are lifting cylinders fixed on the workbench respectively on the left and right sides of the positioning and welding components. There are rods fixed on the acting ends of the piston rods of the two lifting cylinders. There is a lifting plate fixed between the two rods. There are two positioning and pressing components on the bottom surface of the lifting plate for positioning and pressing the bonding wire die B. The two positioning and pressing components are respectively directly above the two positioning and welding components; The positioning and pressing component on the left side includes a connecting rod fixed on the bottom surface of the lifting plate, a platform fixed at the bottom of the connecting rod, and a through groove opened in the platform. There is an arch frame fixed on the top surface of the platform directly above the through groove. There is a pressing cylinder fixed on the top surface of the arch frame. The piston rod of the pressing cylinder penetrates downward through the arch frame, and a pressing head is fixed on the extending end; Support mechanisms are respectively arranged on the left and right sides of the arch frame. The support mechanism on the left side includes a vertical cylinder fixed on the top surface of the platform, and two connecting rods hinged on the bottom surface of the lifting plate. The two connecting rods are arranged in parallel, and a horizontally arranged guard plate is hinged between the two connecting rods. A semicircular hole is opened at the inner end of the guard plate, and the semicircular hole is matched with the outer contour of the cylinder of the bonding wire die B; The piston rod of the vertical cylinder penetrates downward through the platform, and the extending end is hinged to a movable rod through a first pin shaft, and the other end of the movable rod is hinged to the outer connecting rod through a second pin shaft.

[0010] There are two supports fixed on the workbench respectively on the left and right sides of the positioning and welding components. The cylinder barrels of the two lifting cylinders are respectively fixed on the two supports.

[0011] The pressing head is made of nylon material and is located directly above the through groove.

[0012] The two support mechanisms are symmetric about the left and right of the arch frame.

[0013] The positioning and welding assembly located on the left side includes a fixed shaft fixed on the workbench, a positioning seat fixed on the top of the fixed shaft, and a driven gear rotatably mounted outside the fixed shaft through a ball bearing. A positioning hole is formed on the top surface of the positioning seat, and the positioning hole is matched with the outer contour of the disc of the bonding wire die A; a bracket is fixed on the top surface of the driven gear, the upper end of the bracket extends above the positioning seat, and a welding head inclined upward is fixed on the extended end, and the power cord of the welding head is connected to the laser welding machine.

[0014] A driving assembly for driving the driven gear to rotate is arranged between the two positioning and welding assemblies. The driving assembly includes a driving motor fixed on the workbench, a driving gear is installed on the output shaft of the driving motor, and the driving gear meshes with the driven gears of the two positioning and welding assemblies.

[0015] The high-efficiency string welding device further includes a controller, and the controller is electrically connected to the lifting oil cylinder, the pressing oil cylinder, the vertical oil cylinder, the laser welding machine and the driving motor through signal lines.

[0016] A high-efficiency string welding method for bonding wire dies of different specifications includes the following steps: S1. Workers take out two bonding wire dies A, and respectively embed the discs of the two bonding wire dies A into the positioning holes of the positioning seats of the two positioning and welding assemblies. Since the positioning holes are matched with the outer contours of the discs of the bonding wire dies A, the positioning of the two bonding wire dies A is realized. At this time, the two bonding wire dies A are respectively located directly below the two positioning and pressing assemblies; S2. Workers respectively position the two bonding wire dies B on the top surfaces of the two bonding wire dies A. The specific operation steps are as follows: S21. Workers control the piston rods of the two lifting oil cylinders to retract downward. The piston rods drive the rods to move downward, the rods drive the lifting plates to move downward synchronously, the lifting plates drive the two positioning and pressing assemblies to move downward synchronously, and the positioning and pressing assemblies drive the two guard plates thereon to move downward synchronously; when the piston rods of the lifting oil cylinders are completely retracted, the two guard plates stop moving, and the two guard plates are both located above the bonding wire die A; S22. Control the piston rods of the two vertical oil cylinders of the positioning and pressing assembly to extend downward. The piston rods drive the movable rods to move downward, the movable rods drive the connecting rods to rotate inward, the connecting rods drive the guard plates to move inward horizontally, and the two guard plates move in opposite directions; when the piston rods of the two vertical oil cylinders are completely extended, the semi-circular holes of the two guard plates are closed. After closing, the two semi-circular holes enclose a circular hole, and the circular hole is just located directly above the bonding wire die A, and the circular hole is coaxial with the cylinder of the bonding wire die A; S23. The worker takes out two bonding wire molds B, and then drops the two bonding wire molds B into the two round holes from top to bottom. After dropping, the cylinders of the two bonding wire molds B are respectively supported on the top surfaces of the cylinders of the two bonding wire molds A, thus finally positioning the two bonding wire molds B on the top surfaces of the two bonding wire molds A respectively. At this time, the cylinders of the bonding wire mold B and the bonding wire mold A are just coaxial, and the contact part of the bonding wire mold B and the bonding wire mold A just faces the welding head; S3. Fix the bonding wire mold B on the bonding wire mold A: The worker controls the piston rods of the pressing cylinders of the two positioning and pressing components to extend downward. The piston rods drive the pressing heads to move downward. The pressing heads move toward the bonding wire mold B. When the piston rods of the pressing cylinders are fully extended, the pressing heads just press on the top of the bonding wire mold B, thus fixing the bonding wire mold B on the bonding wire mold A; S4. Control the laser welding machine to start. The laser beam emitted by the welding head irradiates the contact part of the bonding wire mold B and the bonding wire mold A; then control the driving motor of the driving component to start. The driving motor drives the driving gear to rotate. The driving gear drives the driven gear to rotate. The driven gear drives the bracket and the welding head to rotate around the axis of the fixed shaft. When the welding head rotates one circle, a circular weld scar can be welded at the contact part, thus finally realizing the series welding of the bonding wire mold B and the bonding wire mold A into one body, and then producing two required finished molds; S5. Taking away the two finished molds, the specific operation steps are as follows: S51. Control the laser welding machine to turn off, and at the same time control the driving motor to turn off, and the driving gear stops rotating; S52. Control the piston rods of the pressing cylinders of the positioning and pressing components to retract upward. The piston rods drive the pressing heads to move upward, and the pressing heads are separated from the finished molds; S53. Control the piston rods of the two vertical cylinders of the positioning and pressing components to move upward. The piston rods drive the movable rods to move upward. The piston rods drive the connecting rods to rotate outward. The connecting rods drive the guard plates to move laterally outward. The two guard plates move in opposite directions, and the guard plates are separated from the finished molds; S54. The worker controls the piston rods of the two jacking cylinders to extend upward. The piston rods drive the rods to move upward. The rods drive the lifting plate to move upward synchronously. The lifting plate drives the two positioning and pressing components to move upward synchronously; when the piston rods of the jacking cylinders are fully extended, the worker takes away the finished molds from the positioning seats; S6. The worker repeats the operations of steps S1 - S5 many times, and can continuously series - weld two specifications of bonding wire molds into one body, and then produce multiple required finished molds.

[0017] The present invention has the following advantages: greatly shortening the positioning time of bonding wire dies of two specifications and greatly improving the string welding efficiency of bonding wire dies of two specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of a bonding wire die; Figure 2 is Figure 1 the main sectional schematic diagram of Figure 3 is a schematic structural diagram of a finished die; Figure 4 is a schematic diagram of placing the disc of bonding wire die A on the top surface of the machine table; Figure 5 is a schematic diagram of positioning bonding wire die B on the top surface of bonding wire die A; Figure 6 is a schematic diagram of fixing bonding wire die A and bonding wire die B between the machine table and the pressing plate; Figure 7 is a schematic diagram of completing the positioning of the welding head; Figure 8 is a schematic structural diagram of the present invention; Figure 9 is Figure 8 the main sectional schematic diagram of Figure 10 is a schematic connection diagram of the driving component and two positioning and welding components; Figure 11 is Figure 10 the schematic structural diagram of one of the positioning and welding components in Figure 12 is a schematic connection diagram of the lifting oil cylinder, the lifting plate and two positioning and pressing components; Figure 13 is Figure 12 the schematic structural diagram of one of the positioning and pressing components in Figure 14 is Figure 13 the axonometric drawing of the guard plate in Figure 15 is Figure 14 the main sectional schematic diagram of Figure 16 is a schematic diagram of realizing the positioning of two bonding wire dies A; Figure 17 is a schematic diagram of both guard plates being above bonding wire die A; Figure 18 is a schematic diagram of the semi-circular holes of both guard plates being closed; Figure 19 is a schematic diagram of realizing the positioning of two bonding wire dies B on the top surfaces of two bonding wire dies A respectively; Figure 20 Schematic diagram for fixing bonding wire die B on bonding wire die A; Figure 21 Schematic diagram for taking away the finished die; In the figure: 1 - Disc, 2 - Cylinder, 3 - Central hole, 4 - Bonding wire die A, 5 - Bonding wire die B, 6 - Machine table, 7 - Pressure plate, 8 - Welding head; 9 - Workbench, 10 - Positioning and welding assembly, 11 - Jacking oil cylinder, 12 - Rod, 13 - Lifting plate, 14 - Positioning and pressing assembly, 15 - Connecting rod, 16 - Platform, 17 - Arch frame, 18 - Pressing oil cylinder, 19 - Pressing head; 20 - Support mechanism, 21 - Vertical oil cylinder, 22 - Connecting rod, 23 - Guard plate, 24 - Semi - circular hole, 25 - Movable rod, 26 - Support; 27 - Fixed shaft, 28 - Positioning seat, 29 - Driven gear, 30 - Positioning hole, 31 - Bracket, 32 - Driving assembly, 33 - Driving motor, 34 - Driving gear. Specific implementation mode

[0019] The following further describes the present invention with reference to the accompanying drawings. The protection scope of the present invention is not limited to the following: As Figures 8 to 15 shown, a high - efficiency series welding device for series - welding two - specification bonding wire dies together includes a workbench 9. On the workbench 9, there are two positioning and welding assemblies 10 for positioning and welding the bonding wire die A 4. On the workbench 9, there are fixed jacking oil cylinders 11 respectively located on the left and right sides of the positioning and welding assemblies 10. On the acting ends of the piston rods of the two jacking oil cylinders 11, there are fixedly connected rods 12. Between the two rods 12, there is fixedly connected a lifting plate 13. On the bottom surface of the lifting plate 13, there are two positioning and pressing assemblies 14 for positioning and pressing the bonding wire die B 5. The two positioning and pressing assemblies 14 are respectively located directly above the two positioning and welding assemblies 10. On the workbench 9, there are fixed two supports 26 respectively located on the left and right sides of the positioning and welding assemblies 10. The cylinder barrels of the two jacking oil cylinders 11 are respectively fixed on the two supports 26.

[0020] The positioning and pressing assembly 14 located on the left side includes a connecting rod 15 fixedly connected to the bottom surface of the lifting plate 13, a platform 16 fixedly arranged at the bottom of the connecting rod 15, and a through - groove opened in the platform 16. Directly above the through - groove, there is an arch frame 17 fixedly arranged on the top surface of the platform 16. On the top surface of the arch frame 17, there is fixedly arranged a pressing oil cylinder 18. The piston rod of the pressing oil cylinder 18 penetrates downward through the arch frame 17, and on the extending end, there is fixedly arranged a pressing head 19. The pressing head 19 is made of nylon and is located directly above the through - groove.

[0021] The left and right sides of the arched frame 17 are respectively provided with support mechanisms 20. The two support mechanisms 20 are symmetric about the left and right of the arched frame 17. The support mechanism 20 on the left side includes a vertical oil cylinder 21 fixed on the top surface of the platform 16, and two connecting rods 22 hinged on the bottom surface of the lifting plate 13. The two connecting rods 22 are arranged in parallel, and a horizontally arranged guard plate 23 is hinged between the two connecting rods 22. A semicircular hole 24 is opened at the inner end of the guard plate 23, and the semicircular hole 24 is matched with the outer contour of the cylinder 2 of the bonding wire die B5; the piston rod of the vertical oil cylinder 21 penetrates downward through the platform 16, and the extending end is hinged with a movable rod 25 through a first pin shaft, and the other end of the movable rod 25 is hinged on the outer connecting rod 22 through a second pin shaft.

[0022] The positioning and welding assembly 10 on the left side includes a fixed shaft 27 fixed on the workbench 9, a positioning seat 28 fixed on the top of the fixed shaft 27, and a driven gear 29 rotatably installed outside the fixed shaft 27 through a ball bearing. A positioning hole 30 is opened on the top surface of the positioning seat 28, and the positioning hole 30 is matched with the outer contour of the disc 1 of the bonding wire die A4; a bracket 31 is fixed on the top surface of the driven gear 29, and the upper end of the bracket 31 extends above the positioning seat 28, and an inclined upward welding head 8 is fixed on the extending end. The power cord of the welding head 8 is connected to the laser welding machine. A driving assembly 32 for driving the driven gear 29 to rotate is arranged between the two positioning and welding assemblies 10. The driving assembly 32 includes a driving motor 33 fixed on the workbench 9, and a driving gear 34 is installed on the output shaft of the driving motor 33. The driving gear 34 meshes with the driven gears 29 of the two positioning and welding assemblies 10.

[0023] The high-efficiency string welding device further includes a controller, which is electrically connected to the jacking oil cylinder 11, the pressing oil cylinder 18, the vertical oil cylinder 21, the laser welding machine and the driving motor 33 through signal lines. Workers can control the extension or retraction of the piston rods of the jacking oil cylinder 11, the pressing oil cylinder 18 and the vertical oil cylinder 21 through the controller, and can also control the start or stop of the laser welding machine, thus facilitating the operation of the workers.

[0024] A high-efficiency string welding method for welding two bonding wire dies of different specifications together includes the following steps: S1. Workers take out two bonding wire dies A4, and respectively embed the discs 1 of the two bonding wire dies A4 into the positioning holes 30 of the positioning seats 28 of the two positioning and welding assemblies 10. Since the positioning holes 30 are matched with the outer contours of the discs 1 of the bonding wire dies A4, the positioning of the two bonding wire dies A4 is realized. As Figure 16 shown, at this time, the two bonding wire dies A4 are respectively located directly below the two positioning and pressing assemblies 14; S2. The worker positions two bonding wire molds B5 on the top surfaces of two bonding wire molds A4 respectively. The specific operation steps are as follows: S21. The worker controls the pistons of two lifting cylinders 11 to retract downward. The pistons drive the rods 12 to move downward. The rods 12 drive the lifting plates 13 to move downward synchronously. The lifting plates 13 drive two positioning and pressing components 14 to move downward synchronously. The positioning and pressing components 14 drive two guard plates 23 thereon to move downward synchronously. When the pistons of the lifting cylinders 11 are fully retracted, the two guard plates 23 stop moving, and both of the two guard plates 23 are above the bonding wire mold A4, as Figure 17 shown; S22. Control the pistons of two vertical cylinders 21 of the positioning and pressing component 14 to extend downward. The pistons drive the movable rods 25 to move downward. The movable rods 25 drive the connecting rods 22 to rotate inward. The connecting rods 22 drive the guard plates 23 to translate inward. The two guard plates 23 move in opposite directions. When the pistons of the two vertical cylinders 21 are fully extended, the semi-circular holes 24 of the two guard plates 23 are closed, as Figure 18 shown. After closing, the two semi-circular holes 24 form a circular hole, and the circular hole is just above the bonding wire mold A4, and the circular hole is coaxial with the cylinder 2 of the bonding wire mold A4; S23. The worker takes out two bonding wire molds B5, and then drops the two bonding wire molds B5 into the two circular holes from top to bottom respectively. After dropping, the cylinders 2 of the two bonding wire molds B5 are respectively supported on the top surfaces of the cylinders 2 of the two bonding wire molds A4, thus finally realizing the positioning of the two bonding wire molds B5 on the top surfaces of the two bonding wire molds A4 respectively, as Figure 19 shown. At this time, the cylinder 2 of the bonding wire mold B5 is just coaxial with the cylinder 2 of the bonding wire mold A4, and the contact part of the bonding wire mold B5 and the bonding wire mold A4 just faces the welding head 8; S3. Fix the bonding wire mold B5 on the bonding wire mold A4: The worker controls the pistons of the pressing cylinders 18 of the two positioning and pressing components 14 to extend downward. The pistons drive the pressing heads 19 to move downward. The pressing heads 19 move towards the bonding wire mold B5. When the pistons of the pressing cylinders 18 are fully extended, the pressing heads 19 just press on the top of the bonding wire mold B5, thus realizing the fixation of the bonding wire mold B5 on the bonding wire mold A4, as Figure 20 shown; S4. Start the laser welding machine, and the laser beam emitted by the welding head 8 irradiates the contact part between the bonding wire die B5 and the bonding wire die A4. Then, start the drive motor 33 of the drive assembly 32. The drive motor 33 drives the driving gear 34 to rotate. The driving gear 34 drives the driven gear 29 to rotate. The driven gear 29 drives the bracket 31 and the welding head 8 to rotate around the axis of the fixed shaft 27. After the welding head 8 rotates one circle, an annular weld scar can be welded at the contact part, thus finally realizing the series welding of the bonding wire die B5 and the bonding wire die A4 into one body, and then producing two required finished dies. The structure of the finished die is as Figure 3 shown; Among them, in step S1, the worker first inserts the disk 1 of the bonding wire die A4 into the positioning hole 30 of the positioning seat 28 of the positioning and welding assembly 10 to position the bonding wire die A4. Then, in steps S21 - S22, through the linkage cooperation of the lifting oil cylinder 11 and the vertical oil cylinder 21, the semi-circular holes 24 of the two guard plates 23 of the positioning and pressing assembly 14 are closed. After closing, the circular hole formed by the two semi-circular holes 24 is coaxial with the cylinder 2 of the bonding wire die A4, and the diameter of the circular hole is equal to the outer diameter of the cylinder 2 of the bonding wire die B5.

[0025] Therefore, in step S23, the worker only needs to put the bonding wire die B5 into this circular hole to quickly position the bonding wire die B5 on the bonding wire die A4. After putting it, the cylinder 2 of the bonding wire die B5 is coaxial with the cylinder 2 of the bonding wire die A4, thereby ensuring that the central hole 3 of the bonding wire die B5 is coaxial with the central hole 3 of the bonding wire die A4. Compared with the welding method as Figures 4 to 7 shown in the workshop, there is no need for the worker to frequently adjust the position of the bonding wire die B5 to position the cylinder 2 of the bonding wire die B5 on the bonding wire die A4, thus greatly shortening the positioning time of the two specifications of bonding wire dies, and then greatly improving the series welding efficiency of the two specifications of bonding wire dies.

[0026] S5. Taking away the two finished dies, and the specific operation steps are as follows: S51. Control the laser welding machine to shut down, and at the same time control the drive motor 33 to shut down, and the driving gear 34 stops rotating; S52. Control the piston rod of the pressing oil cylinder 18 of the positioning and pressing assembly 14 to retract upward. The piston rod drives the pressing head 19 to move upward, and the pressing head 19 is separated from the finished die; S53. Control the piston rods of the two vertical oil cylinders 21 of the positioning and pressing assembly 14 to move upward. The piston rods drive the movable rod 25 to move upward. The piston rods drive the connecting rod 22 to rotate outward. The connecting rod 22 drives the guard plate 23 to move laterally outward. The two guard plates 23 move in opposite directions, and the guard plate 23 is separated from the finished die; S53. The worker controls the piston rods of the two lifting cylinders 11 to extend upward. The piston rods drive the rod 12 to move upward, the rod 12 drives the lifting plate 13 to move upward synchronously, and the lifting plate 13 drives the two positioning and pressing components 14 to move upward synchronously. After the piston rods of the lifting cylinders 11 are fully extended, the worker removes the finished mold from the positioning seat 28, and the removal direction is as Figure 21 indicated by the arrow in S6. The worker repeats the operations in steps S1 - S5 multiple times, and then the two - specification bonding wire molds can be continuously welded in series to form an integrated body, thereby producing multiple required finished molds.

[0027] In addition, it can be seen from steps S1 - S5 that through the linkage cooperation of the lifting cylinders 11, the positioning and welding components 10, the driving components 32, and the positioning and pressing components 14, this series - welding device can produce two finished molds at one time. Compared with the welding method as Figures 4 to 7 shown in the workshop, there is no need for workers to weld one by one, thus realizing the production of the required number of finished molds in a short time, and greatly improving the series - welding efficiency of the two - specification bonding wire molds.

[0028] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An efficient string welding device for string welding two specifications of bonding wire dies together, characterized in that: It comprises a workbench (9), on which are arranged two positioning and welding assemblies (10) for positioning and welding a bonding wire mold A (4), on which are arranged lifting cylinders (11) respectively located on the left and right sides of the positioning and welding assemblies (10), on which are arranged effective ends of piston rods of the two lifting cylinders (11), and between which are arranged a lifting plate (13) for a bottom surface of the lifting plate (13) for positioning and pressing a bonding wire mold B (5), and on which are arranged two positioning and pressing assemblies (14), respectively located directly above the two positioning and welding assemblies (10); The positioning and clamping assembly (14) located on the left side comprises a connecting rod (15) fixedly connected to the bottom surface of the lifting plate (13), a platform (16) fixedly arranged at the bottom of the connecting rod (15), and a through groove opened in the platform (16); an arch frame (17) fixedly arranged on the top surface of the platform (16) is arranged directly above the through groove; a clamping oil cylinder (18) is fixedly arranged on the top surface of the arch frame (17); a piston rod of the clamping oil cylinder (18) passes through the arch frame (17) downward, and a pressure head (19) is fixedly arranged on the extended end; Support mechanisms (20) are respectively arranged on the left and right sides of the arch frame (17). The support mechanism (20) on the left side comprises a vertical oil cylinder (21) fixed on the top surface of the platform (16) and two connecting rods (22) hinged on the bottom surface of the lifting plate (13). The two connecting rods (22) are arranged in parallel, and a horizontally arranged guard plate (23) is hinged between the two connecting rods (22). A semicircular hole (24) is opened at the inner end of the guard plate (23). The semicircular hole (24) matches the outer contour of the cylinder (2) of the bonding wire mold B (5). The piston rod of the vertical oil cylinder (21) passes through the platform (16) downward, and a movable rod (25) is hinged on the extended end via a first pin shaft. The other end of the movable rod (25) is hinged on the outer connecting rod (22) via a second pin shaft.

2. According to claim 1, a high-efficiency serial welding device for serial welding two-specification bonding wire dies into one, characterized in that: The workbench (9) is fixedly provided with two supports (26) respectively located on the left and right sides of the positioning and welding assembly (10), and the cylinder barrels of the two lifting cylinders (11) are respectively fixedly provided on the two supports (26).

3. The high-efficiency serial welding device for serial welding two-specification bonding wire dies into one body according to claim 2, characterized in that: The pressure head (19) is made of nylon and is located directly above the through slot.

4. The high-efficiency serial welding device for serial welding two-specification bonding wire dies into one body according to claim 3, characterized in that: The two supporting mechanisms (20) are symmetrical with respect to the arch frame (17).

5. The high-efficiency serial welding device for serial welding two-specification bonding wire dies into one body according to claim 4, characterized in that: The positioning and welding assembly (10) located on the left side comprises a fixed shaft (27) fixed on the workbench (9), a positioning seat (28) fixed on the top of the fixed shaft (27), and a driven gear (29) rotatably mounted on the outside of the fixed shaft (27) via a ball bearing, wherein a positioning hole (30) is provided on the top surface of the positioning seat (28), and the positioning hole (30) matches the outer contour of the disk (1) of the bonding wire mold A (4); a bracket (31) is fixed on the top surface of the driven gear (29), and the upper end of the bracket (31) extends above the positioning seat (28), and a welding head (8) inclined upward is fixed on the extended end, and a power line of the welding head (8) is connected to a laser welding machine.

6. The high-efficiency serial welding device for serial welding two-specification bonding wire dies into one body according to claim 5, characterized in that: A driving assembly (32) for driving the driven gear (29) to rotate is arranged between the two positioning and welding assemblies (10). The driving assembly (32) comprises a driving motor (33) fixedly mounted on the workbench (9). A driving gear (34) is mounted on the output shaft of the driving motor (33). The driving gear (34) meshes with the driven gears (29) of the two positioning and welding assemblies (10).

7. The high-efficiency serial welding device for serial welding two-specification bonding wire dies into one body according to claim 6, characterized in that: The high-efficiency series welding device also includes a controller, which is electrically connected to the lifting cylinder (11), the pressing cylinder (18), the vertical cylinder (21), the laser welding machine, and the driving motor (33) via a signal line.

8. An efficient string welding method for string welding two specifications of bonding wire dies into one, using the efficient string welding device for string welding two specifications of bonding wire dies into one according to claim 7, characterized in that: It includes the following steps: S1. The worker takes out two bonding wire molds A (4), and respectively inserts the disks (1) of the two bonding wire molds A (4) into the positioning holes (30) of the positioning seats (28) of the two positioning and welding components (10). Since the positioning holes (30) match the outer contours of the disks (1) of the bonding wire molds A (4), the two bonding wire molds A (4) are positioned. At this time, the two bonding wire molds A (4) are respectively located directly below the two positioning and clamping components (14); S2. The worker positions two bonding wire molds B (5) on the top surfaces of two bonding wire molds A (4) respectively. The specific operation steps are as follows: S21. The worker controls the piston rods of the two lifting cylinders (11) to retract downward, the piston rods drive the rod (12) to move downward, the rod (12) drives the lifting plate (13) to move downward synchronously, the lifting plate (13) drives the two positioning and clamping components (14) to move downward synchronously, and the positioning and clamping components (14) drive the two guard plates (23) thereon to move downward synchronously; when the piston rods of the lifting cylinders (11) are fully retracted, the two guard plates (23) stop moving, and both guard plates (23) are located above the bonding wire mold A (4); S22, the piston rods of the two vertical oil cylinders (21) of the control positioning and clamping assembly (14) extend downward, the piston rods drive the movable rod (25) to move downward, the movable rod (25) drives the connecting rod (22) to rotate inward, the connecting rod (22) drives the guard plate (23) to move inward, and the two guard plates (23) move in opposite directions; when the piston rods of the two vertical oil cylinders (21) are fully extended, the semicircular holes (24) of the two guard plates (23) are closed, and after closing, the two semicircular holes (24) form a circular hole, which is just above the bonding wire mold A (4), and the circular hole is coaxial with the cylinder (2) of the bonding wire mold A (4); S23, the worker takes out two bonding wire molds B (5), and then puts the two bonding wire molds B (5) into the two circular holes from top to bottom. After being put in, the cylindrical bodies (2) of the two bonding wire molds B (5) are respectively supported on the top surfaces of the cylindrical bodies (2) of the two bonding wire molds A (4), so that the two bonding wire molds B (5) are finally positioned on the top surfaces of the two bonding wire molds A (4). At this time, the cylindrical bodies (2) of the bonding wire mold B (5) and the cylindrical bodies (2) of the bonding wire mold A (4) are exactly coaxial, and the contact parts of the bonding wire molds B (5) and the bonding wire molds A (4) are exactly facing the welding head (8); S3. Fix the bonding wire mold B (5) on the bonding wire mold A (4): the worker controls the piston rods of the clamping oil cylinders (18) of the two positioning and clamping components (14) to extend downward, and the piston rods drive the pressing head (19) to move downward, and the pressing head (19) moves toward the bonding wire mold B (5). When the piston rod of the clamping oil cylinder (18) is fully extended, the pressing head (19) just presses on the top of the bonding wire mold B (5), thereby achieving the fixing of the bonding wire mold B (5) on the bonding wire mold A (4); S4, control the laser welding machine to start, and the laser beam emitted by the welding head (8) irradiates the contact part between the bonding wire mold B (5) and the bonding wire mold A (4); then control the driving motor (33) of the driving assembly (32) to start, and the driving motor (33) drives the driving gear (34) to rotate, and the driving gear (34) drives the driven gear (29) to rotate, and the driven gear (29) drives the bracket (31) and the welding head (8) to rotate around the axis of the fixed shaft (27). When the welding head (8) rotates one circle, a ring-shaped weld scar can be welded at the contact part, thereby finally realizing the serial welding of the bonding wire mold B (5) and the bonding wire mold A (4) together, and then producing two required finished molds; S5. The specific steps of taking away the two finished molds are as follows: S51, controlling the laser welding machine to shut down, and at the same time controlling the driving motor (33) to shut down, and the driving gear (34) to stop rotating; S52, controlling the piston rod of the clamping oil cylinder (18) of the positioning and clamping assembly (14) to retract upward, so that the piston rod drives the pressing head (19) to move upward, and the pressing head (19) is separated from the finished product mold; S53, the piston rods of the two vertical oil cylinders (21) of the control positioning and clamping assembly (14) are moved upward, the piston rods drive the movable rod (25) to move upward, the piston rods drive the connecting rod (22) to rotate outward, the connecting rod (22) drives the guard plate (23) to move outward, the two guard plates (23) move in opposite directions, and the guard plates (23) are separated from the finished mold; S53, the worker controls the piston rods of the two lifting cylinders (11) to extend upward, the piston rods drive the rod (12) to move upward, the rod (12) drives the lifting plate (13) to move upward synchronously, and the lifting plate (13) drives the two positioning and clamping components (14) to move upward synchronously; when the piston rods of the lifting cylinders (11) are fully extended, the worker removes the finished mold from the positioning seat (28); S6. The worker repeats the operations of steps S1 to S5 for multiple times, and can continuously weld two specifications of bonding wire molds together to produce multiple required finished molds.

Images