CN115476029A

CN115476029A - Wire bonding machine

Info

Publication number: CN115476029A
Application number: CN202110669121.5A
Authority: CN
Inventors: 黄银祥; 周伟
Original assignee: Suzhou Pufengxin Electronic Technology Co ltd
Current assignee: Suzhou Pufengxin Electronic Technology Co ltd
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2022-12-16

Abstract

The invention relates to a wire welding machine which comprises a workbench, wherein a wire welding device and an operation table are arranged on the workbench, the wire welding device comprises a welding gun lifting mechanism and a welding gun, a weldment positioning mechanism is arranged on the operation table and comprises a front positioning push plate mechanism, a rear positioning push plate mechanism and a left positioning push plate mechanism, the front positioning push plate mechanism comprises a front push plate and a rear push plate, a front push plate slide block at the bottom of the front push plate is linked with a rear push plate slide block at the bottom of the rear push plate through a bidirectional screw rod A, the left positioning push plate mechanism comprises a left push plate and a right push plate, a left push plate slide block at the bottom of the left push plate is linked with a right push plate slide block at the bottom of the right push plate through a bidirectional screw rod B, a bevel gear A at the middle part of the bidirectional screw rod A is in transmission connection with a bevel gear B, and a linkage hand wheel is arranged on a middle shaft of the bevel gear B. The invention adopts the wire bonding machine scheme of the weldment positioning mechanism with multi-direction linkage positioning, and has the characteristics of simple and efficient operation and stable weldment positioning.

Description

Wire bonding machine

Technical Field

The invention relates to a wire bonding machine, in particular to an improved positioning base of the wire bonding machine, and belongs to the field of wire bonding machines.

Background

A wire bonding machine is an apparatus for bonding semiconductor electronic components, which is capable of performing surface bonding of different media. The welding wire machine first preheats the welded metal surface, then the gold wire whose head end is processed to form a ball shape is continuously welded under the action of pressure, plastic deformation is generated on the metal welding surface, so that two media are reliably contacted, and the ultrasonic friction vibration is utilized to form a metal bond between two metal atoms under the action of atomic affinity, thereby realizing the welding of the gold wire lead. At present, when an existing wire bonding machine positions a weldment, the position of the weldment needs to be adjusted through repeated operation, the positioning efficiency of the weldment is low, positioning from a plurality of directions is needed, operation is troublesome, time and labor are consumed, and sometimes the situation that positioning in a certain direction is loosened exists.

Disclosure of Invention

The invention discloses a new scheme of a wire bonding machine, which adopts the scheme of the wire bonding machine with a weldment positioning mechanism with multi-direction linkage positioning, and solves the problems of troublesome operation, time and labor consumption and looseness of the existing similar products during positioning of weldments.

The invention discloses a wire welding machine, which comprises a workbench, wherein a wire welding device and an operating platform are arranged on the workbench, the wire welding device comprises a welding gun lifting mechanism and a welding gun arranged above the operating platform, the welding gun is in transmission connection with the welding gun lifting mechanism, a weldment positioning mechanism is arranged on the operating platform and comprises a front and rear positioning push plate mechanism and a left and right positioning push plate mechanism, the front and rear positioning push plate mechanism comprises a front push plate and a rear push plate, a front push plate sliding block arranged at the bottom of the front push plate in a front sliding groove on the table top of the operating platform is linked with a rear push plate sliding block arranged at the bottom of the rear push plate in a rear sliding groove on the table top of the operating platform through a bidirectional screw rod A, the left and right positioning push plate mechanism comprises a left push plate and a right push plate, the left push plate slider arranged at the bottom of the left push plate in the left chute on the table top of the operating table is linked with the right push plate slider arranged at the bottom of the right push plate in the right chute on the table top of the operating table through a bidirectional screw rod B, a bevel gear A is arranged in the middle of the bidirectional screw rod A, a bevel gear B is arranged in the middle of the bidirectional screw rod B, the bevel gear A is in transmission connection with the bevel gear B through a bevel gear C, the bevel gear A is in transmission connection with a bevel gear T, a linkage hand wheel is arranged at one end of the middle shaft of the bevel gear T, which extends out of one side of the operating table, and the linkage hand wheel drives the front push plate, the rear push plate, the left push plate and the right push plate to gather together or scatter towards the center of the table top of the operating table to clamp and position or loosen a release weldment.

Further, the preceding push pedal of this scheme, back push pedal, left push pedal, right push pedal are the shape, the push pedal part that the structure is the same, the push pedal part includes elasticity push pedal subassembly, push pedal base frame, elasticity push pedal subassembly includes the push pedal body, a plurality of push pedal springs, establish the inboard of push pedal body in push pedal base frame opening and pass through push pedal spring coupling with the bottom in the push pedal base frame, establish the outside of push pedal body outside push pedal base frame opening and support tight elastic positioning with the weldment and be connected.

Further, be equipped with a plurality of forked tail slide rails on the workstation of this scheme, the forked tail slide rail forms direction sliding connection with the forked tail spout cooperation of operation panel bottom.

Further, the welding wire device of this scheme still includes viewing device, and viewing device is connected with outside display screen including establishing the high power camera on welder, high power camera collection observation data send to the display screen real-time display.

Furthermore, the peripheral cover of the wire bonding device of this scheme, operation panel is equipped with the equipment box, is equipped with the display screen on the equipment box.

Further, the workstation of this scheme is established on wire bonder location base, wire bonder location base includes base frame, be equipped with location slide mechanism on the base frame, location slide mechanism includes front and back location slide mechanism, control location slide mechanism, front and back location slide mechanism includes preceding slide, the back slide, establish the preceding slider of preceding slide bottom in the preceding spout on base frame's mesa and establish the back slider of back slide bottom in the back spout on base frame's mesa through the linkage of front and back two-way screw rod, control location slide mechanism includes left slide, right slide, establish the left slider of left slide bottom in the left spout on base frame's mesa and establish the right slider of right slide bottom in the right spout on base frame's mesa through controlling the linkage of two-way screw rod, the middle part of front and back two-way screw rod is equipped with linkage bevel gear first, the middle part of controlling the two-way screw rod is equipped with linkage bevel gear second, linkage bevel gear first is connected with linkage bevel gear second through transmission bevel gear, linkage bevel gear first is connected with drive bevel gear transmission, drive bevel gear first is connected with drive bevel gear, the one of one side that drive bevel gear stretches out of base frame is equipped with the drive hand wheel, through drive hand wheel, back slide, left side slide, the base frame is gathered together to the mesa or the discrete mesa of base frame.

Furthermore, preceding slide, back slide, left slide, the right slide of this scheme are the slide that shape, structure are the same, and the slide includes the slide backplate, and the inboard of slide backplate is equipped with the slide and bears the underframe, and the slide bears and is equipped with the bonding wire machine on the underframe, and the slide backplate upwards extends the one end that the slide bore the underframe and supports tight positioning connection with one side of bonding wire machine.

Still further, the slide backplate of this scheme upwards extends the slide and bears the weight of the one end of underframe and be equipped with a plurality of universal ball subassemblies of elasticity on the relative face in one side of wire bonding machine, and the universal ball subassembly of elasticity includes universal ball, universal ball spring, and in universal ball mounting groove on the slide backplate was established to universal ball, universal ball passed through universal ball spring coupling with the bottom in universal ball mounting groove, and universal ball supported tight elastic positioning with one side of wire bonding machine and is connected.

Still further, a plurality of roller components are erected at the opening of the bearing surface of the bottom frame bearing the sliding seat, each roller component comprises a roller shaft, a plurality of rollers are arranged on the roller shafts, and the rollers are in contact rolling connection with the bottom of the wire welding machine.

Still further, the both ends of the gyro wheel axle of this scheme are established in the oval hole that extends along upper and lower direction on the side of slide bearing underframe, and the middle part of gyro wheel axle is connected with gyro wheel subassembly seat, and the bottom of gyro wheel subassembly seat and the bottom in the slide bearing underframe are connected through a plurality of damping springs.

The wire bonding machine adopts the wire bonding machine scheme of the weldment positioning mechanism with multi-direction linkage positioning, and has the characteristics of simple and efficient operation and stable weldment positioning.

Drawings

Fig. 1 is a front view schematic diagram of a wire bonding machine.

Fig. 2 is a front view partially internal schematic view of a wire bonding machine.

Fig. 3 is a schematic top view of the operation table.

Fig. 4 is a front view internal schematic of the console.

Fig. 5 is a right-view internal schematic of the console.

Fig. 6 is a schematic front view of a wire bonding machine positioning pedestal.

Fig. 7 is a top view of a positioning base of a wire bonding machine.

Fig. 8 is a front partial internal view of a wire bonding machine positioning base.

Fig. 9 is a right side partial interior schematic view of a wire bonding machine positioning mount.

Fig. 10 is a front view of the carriage.

Figure 11 is a schematic top view of the carriage.

Figure 12 is a schematic left side view of the carriage.

The device comprises a base frame 101, a positioning slide seat mechanism 102, a transmission bevel gear 103, a front slide seat 110, a front slide block 111, a rear slide seat 120, a rear slide block 121, a front-rear bidirectional screw rod 130, a linkage bevel gear A131, a left slide seat 140, a left slide block 141, a right slide seat 150, a right slide block 151, a left-right bidirectional screw rod 160, a linkage bevel gear B161, a driving bevel gear 171, a driving handwheel 172, a slide seat back plate 180, an elastic universal ball assembly 181, a universal ball 182, a universal ball 183, a universal ball spring 190, a slide seat bottom frame 191, an oblong hole 192, a roller assembly 192, a roller shaft 193, a roller 194, a roller assembly seat 195 and a damping spring 196.

201 is a workbench, 202 is a dovetail slide rail, 203 is an operation table, 204 is a weldment positioning mechanism, 205 is a bevel gear C, 206 is an equipment box body, 211 is a welding gun lifting mechanism, 212 is a welding gun, 213 is a high-power camera, 214 is a display screen, 220 is a front push plate, 221 is a front push plate slider, 230 is a rear push plate, 231 is a rear push plate slider, 240 is a bidirectional screw rod A, 241 is a bevel gear A, 250 is a left push plate, 251 is a left push plate slider, 260 is a right push plate, 261 is a right push plate slider, 270 is a bidirectional screw rod B, 271 is a bevel gear B, 281 is a bevel gear D, 282 is a linkage hand wheel, 291 is a push plate base frame, 292 is a push plate body, and 293 is a push plate spring.

Detailed Description

As shown in fig. 1 to 5, the wire welding machine of the invention comprises a workbench, a wire welding device and an operation table are arranged on the workbench, the wire welding device comprises a welding gun lifting mechanism and a welding gun arranged above the operation table, the welding gun is in transmission connection with the welding gun lifting mechanism, a weldment positioning mechanism is arranged on the operation table, the weldment positioning mechanism comprises a front and rear positioning push plate mechanism and a left and right positioning push plate mechanism, the front and rear positioning push plate mechanism comprises a front push plate and a rear push plate, a front push plate slide block at the bottom of the front push plate arranged in a front chute on the table top of the operation table is linked with a rear push plate slide block at the bottom of the rear push plate arranged in a rear chute on the table top of the operation table through a bidirectional screw rod a, the left and right positioning push plate mechanisms comprise a left push plate and a right push plate, a left push plate slide block at the bottom of the left push plate arranged in a left chute on the table top of the operation table top is linked with a right slide block at the bottom of the right chute on the operation table top of the operation table through a bidirectional screw rod b, a bevel gear a middle part of the bidirectional screw rod b, a bevel gear b is arranged in transmission connection with the bevel gear c, a central shaft of the left push plate, a central bevel gear on one side of the operation table top of the operation table, and a hand wheel is linked with a hand wheel, and a central bevel gear.

The scheme adopts a welding wire machine scheme with a weldment positioning mechanism with multi-direction linkage positioning, the bidirectional screw A is utilized to realize the opposite movement and the opposite movement of the front push plate and the rear push plate, the bidirectional screw B is utilized to realize the opposite movement and the opposite movement of the left push plate and the right push plate, and the bevel gear C is utilized to realize the synchronous linkage of the bevel gear A and the bevel gear B, so that the front push plate, the rear push plate, the left push plate and the right push plate are synchronously gathered or dispersed towards the center of the table top of the operating table to realize the clamping or loosening of the weldment. Therefore, the scheme can realize clamping or loosening of the weldment only by twisting the linkage hand wheel, has the characteristics of simple operation, high efficiency and stable positioning of the weldment compared with the existing similar scheme, and greatly improves the production efficiency.

In order to realize preceding push pedal, the back push pedal, left side push pedal, the function of right push pedal, satisfy the requirement of elastically positioned weldment, avoid pressing from both sides the wounded weldment, as shown in fig. 3, the preceding push pedal of this scheme, the back push pedal, left side push pedal, right side push pedal is the shape, the push pedal part that the structure is the same, the push pedal part includes elasticity push pedal subassembly, push pedal base frame, elasticity push pedal subassembly includes the push pedal body, a plurality of push pedal springs, establish the inboard of push pedal body in push pedal base frame opening and pass through push pedal spring coupling with the bottom in the push pedal base frame, establish the outside of push pedal body outside push pedal base frame opening and support tight elastically positioned with the weldment and be connected.

In order to improve the degree of freedom of the operating platform, as shown in fig. 2, the workbench is provided with a plurality of dovetail slide rails, and the dovetail slide rails are matched with dovetail slide grooves at the bottom of the operating platform to form guiding sliding connection.

In order to meet the requirement of observing the welding operation in real time, as shown in fig. 1 and 2, the welding device further comprises an observation device, the observation device comprises a high-power camera arranged on the welding gun, the high-power camera is connected with an external display screen, and observation data collected by the high-power camera is transmitted to the display screen for real-time display. Based on the above scheme, in order to avoid welding to influence the field environment and simultaneously avoid the field environment to interfere with welding, as shown in fig. 1, the periphery of the welding wire device and the operation platform is covered with an equipment box body, and the equipment box body is provided with a display screen.

Based on the working principle of the wire bonding machine, the wire bonding machine should be guaranteed to have a stable state in the working process, and therefore, a positioning base of the wire bonding machine needs to be equipped. The existing wire bonder base is troublesome in operation, needs to be positioned from a plurality of directions, is time-consuming and labor-consuming in operation, and sometimes has the condition of positioning looseness in a certain direction. In order to overcome the problems, the scheme discloses a positioning base of a wire welding machine. As shown in fig. 6 to 9, the workbench is arranged on a positioning base of the wire welding machine, the positioning base of the wire welding machine comprises a base frame, a positioning slide seat mechanism is arranged on the base frame, the positioning slide seat mechanism comprises a front positioning slide seat mechanism, a rear positioning slide seat mechanism, a front slide seat mechanism and a rear positioning slide seat mechanism, the front positioning slide seat mechanism comprises a front slide seat and a rear slide seat, a front slide block at the bottom of the front slide seat arranged in a front chute on a table-board of the base frame is linked with a rear slide block at the bottom of the rear slide seat arranged in a rear chute on the table-board of the base frame through a front and a rear bidirectional screw rod, the left and the right positioning slide seat mechanisms comprise a left slide seat and a right slide seat, a left slide seat arranged at the bottom of the left slide seat on the left chute on the table-board of the base frame is linked with a right slide block arranged at the bottom of the right slide seat on the right chute on the table-board of the base frame through a left and right bidirectional screw rod, a linked bevel gear connected with a linked bevel gear, a driving hand wheel is arranged at one end of one side of the central shaft of the base frame extending out of the base frame through a driving hand wheel, the front and the rear slide seat, the left slide seat, the rear slide seat, the left slide seat are driven hand wheel, the front slide seat and the rear slide seat are driven hand wheel, the central hand wheel, the rear slide seat, the left slide seat is driven hand wheel, the left slide seat is driven slide seat or the base frame.

The scheme adopts a wire bonder positioning base scheme with a positioning sliding seat mechanism with multi-direction linkage positioning, forward and backward bidirectional screws are utilized to realize the opposite movement and the opposite movement of a front sliding seat and a rear sliding seat, left and right bidirectional screws are utilized to realize the opposite movement and the opposite movement of a left sliding seat and a right sliding seat, and a transmission bevel gear is utilized to realize the synchronous linkage of a linkage bevel gear A and a linkage bevel gear B, so that the front sliding seat, the rear sliding seat, the left sliding seat and the right sliding seat are synchronously gathered or dispersed towards the center of a table board of a base frame, and the wire bonder is clamped or loosened. Therefore, the scheme can realize clamping or loosening of the wire bonding machine only by twisting the driving hand wheel, and has the characteristics of simple and efficient operation and stable positioning compared with the existing similar scheme.

In order to realize preceding slide, the back slide, left side slide, the function of right slide, this scheme discloses a concrete slide structure, as shown in fig. 7, 10, 11, 12, the preceding slide of this scheme, the back slide, left side slide, right side slide is the shape, the slide that the structure is the same, the slide includes the slide backplate, the inboard of slide backplate is equipped with the slide and bears the underframe, the slide bears to be equipped with the wire bonding machine on the underframe, the slide backplate upwards extends the one end that the slide bore the underframe and supports tight positioning connection with one side of wire bonding machine. Based on above scheme, in order to satisfy the requirement of damping, as shown in fig. 10, 11, 12, the slide backplate of this scheme upwards extends the slide and bears the one end of underframe and be equipped with a plurality of universal ball subassemblies of elasticity on the relative face in one side of bonding wire machine, the universal ball subassembly of elasticity includes universal ball, universal ball spring, universal ball is established in the universal ball mounting groove on the slide backplate, universal ball is passed through universal ball spring coupling with the bottom of universal ball mounting groove, universal ball supports tight elastic positioning with one side of bonding wire machine and is connected.

In order to avoid excessive friction and improve the operating efficiency of the mechanism, as shown in fig. 10, 11 and 12, a plurality of roller assemblies are erected at the opening of the bearing surface of the bearing bottom frame of the sliding seat in the scheme, each roller assembly comprises a roller shaft, a plurality of rollers are arranged on the roller shafts, the rollers are in contact rolling connection with the bottom of the wire welding machine, and compared with sliding connection in the rolling connection, the friction force is obviously reduced, and the driving efficiency is improved. Based on the above scheme, in order to further achieve the purpose of vibration reduction, as shown in fig. 12, two ends of the roller shaft of the scheme are arranged in oblong holes extending in the up-down direction on the side surface of the slide bearing bottom frame, the middle part of the roller shaft is connected with the roller assembly seat, and the bottom of the roller assembly seat is connected with the bottom in the slide bearing bottom frame through a plurality of vibration reduction springs.

The devices, mechanisms, components and the like disclosed in the present embodiment can be implemented by general and conventional means known in the art, unless otherwise specified. The wire bonding machine of the present invention is not limited to the disclosure of the specific embodiments, the technical solutions presented in the examples can be extended based on the understanding of those skilled in the art, and the simple alternatives made by those skilled in the art according to the present invention in combination with the common general knowledge also belong to the scope of the present invention.

Claims

1. Wire welding machine, characterized by includes the workstation, be equipped with wire bonding device, operation panel on the workstation, wire bonding device includes welder elevating system, establishes the welder of operation panel top, welder with welder elevating system transmission is connected, be equipped with weldment positioning mechanism on the operation panel, weldment positioning mechanism includes front and back location push pedal mechanism, controls location push pedal mechanism, front and back location push pedal mechanism includes preceding push pedal, back push pedal, establishes in the preceding spout on the mesa of operation panel the preceding push pedal slider of preceding push pedal bottom with establish in the back spout on the mesa of operation panel the back push pedal slider of back push pedal bottom passes through the linkage of two-way screw rod first, control location push pedal mechanism and include left push pedal, right push pedal, establish in the left spout on the mesa of operation panel the left push pedal slider of left side push pedal bottom with establish in the right spout on the mesa of operation panel the right push pedal slider of right push pedal bottom passes through the linkage of two-way screw rod second, the middle part of two-way screw rod first is equipped with bevel gear first, the middle part of two-way screw rod second is equipped with second bevel gear second, first passes through bevel gear and is connected with third bevel gear and second bevel gear, the connection of right push pedal is connected the transmission, the right push pedal is connected the central bevel gear that the central axis push pedal drives the right push pedal and is connected the central handle, and is equipped with the central handle, and is connected the central handle of operation panel, and is pressed from the central handle, releases the central handle, the central handle is tight release is tight and is loosened.

2. The wire bonding machine of claim 1 wherein the front push plate, the rear push plate, the left push plate and the right push plate are push plate members having the same shape and structure, the push plate members include an elastic push plate assembly and a push plate base frame, the elastic push plate assembly includes a push plate body and a plurality of push plate springs, the inner side of the push plate body disposed in the opening of the push plate base frame is connected with the bottom of the push plate base frame through the push plate springs, and the outer side of the push plate body disposed outside the opening of the push plate base frame is connected with the weldment in a tightly abutting elastic positioning manner.

3. The wire bonding machine of claim 1 wherein the table has a plurality of dovetail rails thereon, the dovetail rails cooperating with dovetail grooves in the bottom of the table to form a guided sliding connection.

4. The wire bonding machine of claim 1 wherein said wire bonding apparatus further comprises a vision device, said vision device including a macro camera mounted on said welding gun, said macro camera being connected to an external display screen, said macro camera collecting vision data and transmitting said vision data to said display screen for real-time display.

5. The wire bonding machine of claim 4 wherein said wire bonding apparatus, enclosure of the console, houses an equipment cabinet, said display screen being located on said equipment cabinet.

6. The wire bonding machine according to claim 1, wherein the workbench is disposed on a positioning base of the wire bonding machine, the positioning base of the wire bonding machine comprises a base frame, a positioning slide seat mechanism is disposed on the base frame, the positioning slide seat mechanism comprises a front positioning slide seat mechanism, a rear positioning slide seat mechanism, a left positioning slide seat mechanism and a right positioning slide seat mechanism, the front positioning slide seat mechanism comprises a front slide seat and a rear slide seat, a front slider at the bottom of the front slide seat is arranged in a front chute on a table board of the base frame, a rear slider at the bottom of the rear slide seat is linked with a front bidirectional screw rod and a rear bidirectional screw rod through a front bidirectional screw rod and a rear bidirectional screw rod, the left positioning slide seat mechanism comprises a left slide seat and a right slide seat, the left slider at the bottom of the left slide seat is arranged in a left chute on the table board of the base frame, the right slider at the bottom of the right slide seat is linked with a left bidirectional screw rod and a right bidirectional screw rod, a linked bevel gear A is disposed in the middle of the front bidirectional screw rod and the rear bidirectional screw rod, a linked bevel gear B is connected with a drive bevel gear, one end of the drive bevel gear extends out of the central bevel gear, and a hand wheel extends out of the central bevel gear drive base seat.

7. The wire bonding machine of claim 6 wherein the front, rear, left, and right carriages are identically shaped and configured carriages, the carriages include carriage back plates, the carriage back plates are provided with carriage carrying sills on the inner sides thereof, the carriage carrying sills are provided with wire bonding machines thereon, and the carriage back plates extend upward beyond the carriage carrying sills to abut against and be positioned and connected to one side of the wire bonding machines.

8. The wire bonding machine of claim 7 wherein the surface of the end of the carriage back plate extending upwardly beyond the carriage support base frame opposite the side of the wire bonding machine is provided with a plurality of resilient ball assemblies, each resilient ball assembly comprising a ball and a ball spring, the ball being disposed in a ball mounting slot on the carriage back plate, the ball being connected to the bottom of the ball mounting slot by the ball spring, the ball being in resilient locating engagement with the side of the wire bonding machine.

9. The wire bonding machine of claim 7 wherein the carriage carries a plurality of roller assemblies mounted at the carrying surface opening of the base frame, the roller assemblies including roller shafts on which a plurality of rollers are mounted, the rollers being in contact rolling contact with the bottom of the wire bonding machine.

10. The wire bonding machine of claim 9 wherein the roller axle has opposite ends disposed in vertically extending slots in the sides of the carriage support frame, the roller axle having a middle portion coupled to a roller assembly mount, the roller assembly mount having a bottom coupled to the bottom in the carriage support frame by a plurality of damping springs.