阅读说明：本技术 一种线材键合头装置及线材键合机 (Wire bonding head device and wire bonding machine ) 是由 李文 窦宝兴 刘伟 郭庆 张倚云 周凡 严翔 于 2021-09-03 设计创作，主要内容包括：本发明提供了一种线材键合头装置及线材键合机,其中的线材键合头装置包括安装架、夹紧机构及焊接机构,其中：夹紧机构包括第一安装座、第一电磁驱动组件及夹爪组件,其中：第一电磁驱动组件驱动夹爪组件移动至低位时,夹爪组件夹紧线材,第一电磁驱动组件驱动夹爪组件移动至高位时,夹爪组件拉断焊接后的线材。焊接机构包括第二安装座、第二电磁驱动组件及劈刀组件,其中：第二电磁驱动组件驱动劈刀组件下压以压住被夹爪组件夹紧的线材,并实施对线材的焊接。本发明即能实现对线材的夹紧、焊接及拉断,此外,夹紧机构和焊接机构均基于电池驱动方式。与传统的键合设备相比,本发明结构简单紧凑、响应速度快,极大地提升了键合效率。(The invention provides a wire bonding head device and a wire bonding machine, wherein the wire bonding head device comprises a mounting frame, a clamping mechanism and a welding mechanism, wherein: clamping mechanism includes first mount pad, first electromagnetic drive subassembly and clamping jaw assembly, wherein: when the first electromagnetic driving assembly drives the clamping jaw assembly to move to the low position, the clamping jaw assembly clamps the wire, and when the first electromagnetic driving assembly drives the clamping jaw assembly to move to the high position, the clamping jaw assembly breaks the welded wire. Welding mechanism includes second mount pad, second electromagnetic drive subassembly and riving knife subassembly, wherein: the second electromagnetic driving assembly drives the riving knife assembly to press downwards to press the wire clamped by the clamping jaw assembly, and welding of the wire is conducted. The wire rod clamping, welding and snapping device can clamp, weld and snap the wire rod, and in addition, the clamping mechanism and the welding mechanism are both based on a battery driving mode. Compared with the traditional bonding equipment, the invention has simple and compact structure and high response speed, and greatly improves the bonding efficiency.)

1. The utility model provides a wire bonding head device which characterized in that, wire bonding head device includes mounting bracket, clamping mechanism and welding mechanism, wherein:

clamping mechanism includes first mount pad, first electromagnetic drive subassembly and clamping jaw assembly, wherein: the first mounting seat is connected to the mounting frame, the first electromagnetic driving assembly is arranged on the first mounting seat, the clamping jaw assembly clamps a wire when the first electromagnetic driving assembly drives the clamping jaw assembly to move to a low position, and the clamping jaw assembly breaks the welded wire when the first electromagnetic driving assembly drives the clamping jaw assembly to move to a high position;

welding mechanism includes second mount pad, second electromagnetic drive subassembly and riving knife subassembly, wherein: the second mounting seat is connected to the mounting frame, the second electromagnetic driving assembly is arranged on the second mounting seat, and the second electromagnetic driving assembly drives the riving knife assembly to press down to press the wire clamped by the clamping jaw assembly and weld the wire.

2. The wire bond head apparatus of claim 1, wherein the first electromagnetic drive assembly includes a first magnet, a jaw mounting bracket, and a first coil, wherein:

the first magnet is fixedly connected to the first mounting seat;

the clamping jaw mounting bracket is elastically connected to the first mounting seat through a first spring piece, and the clamping jaw assembly is connected to the lower end of the clamping jaw mounting bracket;

the first coil is arranged at the upper end of the clamping jaw mounting bracket and is positioned in the first magnet;

when the first coil is electrified, the first magnet pushes the clamping jaw mounting bracket to move up and down so as to drive the clamping jaw assembly to move between a low position and a high position.

3. The wire bonder head arrangement of claim 2, wherein the jaw assembly includes a first jaw, a second jaw, and a jaw drive mechanism, wherein:

first clamping jaw fixed connection be in on the clamping jaw installing support, clamping jaw actuating mechanism sets up on the clamping jaw installing support, the second clamping jaw is connected on clamping jaw actuating mechanism's the drive end, clamping jaw actuating mechanism drive the cooperation of second clamping jaw the tight wire rod of first clamping jaw.

4. The wire bonder head arrangement of claim 3, wherein the jaw drive mechanism includes a second magnet, a rotating carriage, and a second coil, wherein:

the second magnet is fixedly connected to the clamping jaw mounting bracket;

the middle part of the rotating bracket is rotationally connected to the clamping jaw mounting bracket through a rotating shaft, and the second clamping jaw is connected to the lower end of the rotating bracket;

the second coil is arranged at the upper end of the rotating bracket and is positioned in the second magnet;

when the second coil is electrified, the second magnet pushes the rotating support to rotate around the rotating shaft so as to drive the second clamping jaw to swing towards the first clamping jaw to clamp the wire.

5. The wire bond head apparatus of claim 1, wherein: an inclination angle of 30-60 degrees is formed between the first mounting seat and the horizontal direction, and the first electromagnetic driving assembly drives the clamping jaw assembly to move towards the riving knife assembly in an inclined mode.

6. The wire bond head apparatus of claim 1, wherein the second electromagnetic drive assembly comprises a third magnet, a riving knife mounting bracket, and a third coil, wherein:

the third magnet is fixedly connected to the second mounting seat;

the riving knife mounting bracket is elastically connected to the second mounting seat through a second spring piece, and the riving knife assembly is connected to the lower end of the riving knife mounting bracket;

the third coil is arranged at the upper end of the riving knife mounting bracket and is positioned in the third magnet;

when the third coil is electrified, the third magnet pushes the riving knife mounting bracket to move up and down so as to drive the riving knife assembly to press down and lift up for resetting.

7. The wire bond head device of claim 6, wherein the riving knife assembly comprises an ultrasonic transducer and a riving knife, wherein:

the ultrasonic transducer is connected to the lower end of the riving knife mounting support, the riving knife is mounted on the ultrasonic transducer, the riving knife presses the wire clamped by the clamping jaw assembly, and the ultrasonic transducer transmits ultrasonic waves to the riving knife to weld the wire.

8. The wire bond head apparatus of claim 7, wherein:

the cleaver mounting bracket is provided with a guide plate, and the guide plate is provided with a guide channel;

the end part of the riving knife is provided with a threading through hole;

and the wire penetrates through the guide channel and the clamping jaw assembly in sequence, then penetrates out through the threading through hole, and is pressed and welded by the chopper.

9. The wire bonder head assembly of claim 8, further comprising a guide tube passing through the bonding mechanism from top to bottom, wherein the wire passes through the guide tube from top to bottom and into the guide channel.

10. The wire bonding head device according to claim 6, wherein the bonding mechanism further comprises a grating ruler disposed on the riving knife mounting bracket and a displacement sensor disposed on the second mounting base, the displacement sensor being configured to sense a distance of up and down movement of the grating ruler.

11. A wire bonder comprising a workpiece feeding device, a workpiece conveying device, a wire feeding device, a welding detection device, a blanking device, and a bonding head device according to any one of claims 1-10, wherein:

the workpiece feeding device is used for feeding a workpiece to be processed onto the workpiece conveying device;

the workpiece conveying device is used for conveying workpieces to a welding station;

the wire feeding device is used for supplying wires to the welding head device;

the welding head device is used for welding wires to workpieces conveyed to the welding station;

the welding detection device is used for detecting the welding quality of the welded workpiece;

the blanking device is used for blanking the welded workpiece from the welding station.

Technical Field

The invention relates to the technical field of welding, in particular to a wire bonding head device and a bonding machine.

Background

In the technological links of silicon controlled rectifier lead wire, a bonding device is needed to weld a filiform wire, such as an aluminum wire with the diameter less than 5mil, to a workpiece. The wire bonding has higher precision requirement on the bonding equipment, and the traditional wire bonding equipment has complex structure and slow response speed, thereby seriously influencing the welding efficiency.

Disclosure of Invention

In order to solve at least one of the above technical problems, the present invention first provides a wire bonding head device, which adopts the following technical solutions:

the utility model provides a wire bonding head device, its includes mounting bracket, clamping mechanism and welding mechanism, wherein:

clamping mechanism includes first mount pad, first electromagnetic drive subassembly and clamping jaw assembly, wherein: first mount pad is connected on the mounting bracket, and first electromagnetic drive subassembly sets up on first mount pad, and when first electromagnetic drive subassembly drive clamping jaw subassembly removed to the low level, clamping jaw subassembly pressed from both sides tight wire rod, and when first electromagnetic drive subassembly drive clamping jaw subassembly removed to the high level, clamping jaw subassembly broke the wire rod after the welding.

Welding mechanism includes second mount pad, second electromagnetic drive subassembly and riving knife subassembly, wherein: the second mounting seat is connected to the mounting frame, the second electromagnetic driving assembly is arranged on the second mounting seat, and the second electromagnetic driving assembly drives the riving knife assembly to press down the wire clamped by the clamping jaw assembly and weld the wire.

Through the matching of the clamping mechanism and the welding mechanism, the wire rod can be clamped, welded and broken, and in addition, the clamping mechanism and the welding mechanism are both based on a battery driving mode.

Compared with the traditional bonding equipment, the wire bonding head device has the advantages of simple and compact structure and high response speed, and greatly improves the bonding efficiency of wires.

In some embodiments, the first electromagnetic drive assembly comprises a first magnet, a jaw mounting bracket, and a first coil, wherein: the first magnet is fixedly connected to the first mounting seat; the clamping jaw mounting bracket is elastically connected to the first mounting seat through a first spring piece, and the clamping jaw assembly is connected to the lower end of the clamping jaw mounting bracket; the first coil is arranged at the upper end of the clamping jaw mounting bracket and is positioned in the first magnet; when the first coil is electrified, the first magnet pushes the clamping jaw mounting bracket to move up and down so as to drive the clamping jaw assembly to move between the low position and the high position.

The first electromagnetic driving part is simple and compact in structure, and the clamping jaw assembly is pushed to lift through the matching of the first coil and the first magnet, so that the clamping jaw assembly can clamp and break a wire rapidly.

In some embodiments, the jaw assembly comprises a first jaw, a second jaw, and a jaw drive mechanism, wherein: first clamping jaw fixed connection is on clamping jaw installing support, and clamping jaw actuating mechanism sets up on clamping jaw installing support, and the second clamping jaw is connected on clamping jaw actuating mechanism's drive end, and clamping jaw actuating mechanism drives the tight wire rod of first clamping jaw cooperation second clamping jaw.

Through the cooperation of first clamping jaw and second clamping jaw, the clamping jaw subassembly implements the clamping to the wire rod.

In some embodiments, the jaw drive mechanism comprises a second magnet, a rotating bracket, and a second coil, wherein: the second magnet is fixedly connected to the clamping jaw mounting bracket; the middle part of the rotating bracket is rotationally connected to the clamping jaw mounting bracket through a rotating shaft, and the second clamping jaw is connected to the lower end of the rotating bracket; the second coil is arranged at the upper end of the rotating bracket and is positioned in the second magnet; when the second coil is electrified, the second magnet pushes the rotating support to rotate around the rotating shaft so as to drive the second clamping jaw to swing towards the first clamping jaw to clamp the wire.

The clamping jaw driving mechanism is simple and compact in structure, the second clamping jaw is pushed to swing through the matching of the second coil and the second magnet, and the clamping response speed of the clamping jaw assembly to a wire is improved.

In some embodiments, the first mounting block forms an angle of inclination of 30 ° to 60 ° with the horizontal, and the first electromagnetic drive assembly drives the jaw assembly to move obliquely toward the riving knife assembly.

The first mounting seat is obliquely arranged, and the clamping jaw assembly can be sufficiently close to the riving knife assembly when being lowered to a low position, so that the riving knife assembly can smoothly press the wire clamped by the clamping jaw assembly.

In some embodiments, the second electromagnetic drive assembly comprises a third magnet, a riving knife mounting bracket, and a third coil, wherein: the third magnet is fixedly connected to the second mounting seat; the riving knife mounting bracket is elastically connected to the second mounting seat through a second spring piece, and the riving knife assembly is connected to the lower end of the riving knife mounting bracket; the third coil is arranged at the upper end of the riving knife mounting bracket and is positioned in the third magnet; when the third coil is electrified, the third magnet pushes the riving knife mounting bracket to move up and down so as to drive the riving knife assembly to press down and lift up for resetting.

The third electromagnetic driving piece is simple and compact in structure, and the third coil and the third magnet are matched to push the riving knife assembly to be pressed down quickly, so that the welding response speed of the riving knife assembly is improved.

In some embodiments, the riving knife assembly comprises an ultrasonic transducer and a riving knife, wherein: the ultrasonic transducer is connected to the lower end of the riving knife mounting support, the riving knife is mounted on the ultrasonic transducer, the riving knife presses the wire clamped by the clamping jaw, and the ultrasonic transducer transmits ultrasonic waves to the riving knife to weld the wire.

Ultrasonic transducer and chopper cooperation are implemented the ultrasonic bonding to the wire rod, have promoted the welding effect.

In some embodiments, a guide plate is arranged on the riving knife mounting bracket, and a guide channel is arranged on the guide plate; the end part of the riving knife is provided with a threading through hole; the wire penetrates through the guide channel and the clamping jaw assembly in sequence, penetrates out through the wire penetrating through hole, and is pressed and welded by the riving knife.

Under the guide of guide channel way and threading through-hole, the wire rod can enter smoothly and thus the clamping jaw subassembly presss from both sides tightly in the clamping jaw subassembly, and the wire rod that is pressed from both sides tightly by the clamping jaw subassembly is then guided to the lower extreme of riving knife to be compressed tightly completely by the riving knife, prevent the rosin joint.

In some embodiments, the wire bond head device further comprises a guide tube passing through the welding mechanism from top to bottom, and the wire passes through the guide tube from top to bottom and then penetrates into the guide tube.

The wire guiding is realized, so that the wire fed from the pay-off roll is smoothly guided into the guide channel and enters the clamping jaw assembly under the guidance of the guide channel to be clamped by the clamping jaw assembly.

In some embodiments, the welding mechanism further comprises a grating scale arranged on the riving knife mounting bracket and a displacement sensor arranged on the second mounting seat, and the displacement sensor is used for sensing the distance of the up-and-down movement of the grating scale.

Through the cooperation of grating chi and displacement sensor, can implement the detection to the distance of pushing down of chopper subassembly, guarantee that the chopper subassembly can accurately press the wire rod.

The invention provides a wire bonder which comprises a workpiece feeding device, a workpiece conveying device, a wire feeding device, a welding detection device, a discharging device and any one wire bonding head device. Wherein: the workpiece feeding device is used for feeding a workpiece to be processed onto the workpiece conveying device; the workpiece conveying device is used for conveying workpieces to a welding station; the wire feeding device is used for supplying wires to the welding head device; the welding head device is used for welding the wire to the workpiece conveyed to the welding station; the welding detection device is used for detecting the welding quality of the welded workpiece; the blanking device is used for blanking the welded workpiece from the welding station.

By matching the workpiece feeding device, the workpiece conveying device, the wire feeding device, the welding detection device, the discharging device and the wire bonding head device, the automatic welding of wires is realized, the automatic feeding and discharging of workpieces are realized, and the bonding efficiency is greatly improved.

Drawings

Fig. 1 is a schematic structural diagram of a wire bond head device provided by the present invention at a first viewing angle;

fig. 2 is a schematic structural diagram of a wire bond head device according to a second view;

FIG. 3 is a schematic view of a clamping mechanism of the present invention from a first perspective;

FIG. 4 is a schematic view of the clamping mechanism of the present invention from a second perspective;

FIG. 5 is a schematic view of the mounting structure of the first and second magnets of the present invention;

FIG. 6 is a schematic view of the assembly of the jaw drive mechanism of the present invention with a second jaw;

FIG. 7 is a schematic view of the welding mechanism of the present invention;

FIG. 8 is a schematic view of the welding mechanism of the present invention with some components omitted;

FIG. 9 is a schematic view of an assembly structure of the second electromagnetic driving assembly and the riving knife assembly according to the present invention;

FIG. 10 is a schematic view of the riving knife of the present invention;

fig. 1 to 10 include:

a mounting frame 1;

the clamping mechanism 2: a first mount 21; a first electromagnetic drive assembly 22, a first magnet 221, a jaw mounting bracket 222, a first spring plate 223, a first coil 224; a jaw assembly 23, a first jaw 231, a second jaw 232; a jaw driving mechanism 233, a second magnet 2331, a rotating bracket 2332, a rotating shaft 2333, and a second coil 2334;

the welding mechanism 3: a second mount 31; the second electromagnetic driving assembly 32, the third magnet 321, the riving knife mounting rack 322, the second spring plate 323 and the third coil 324; the riving knife assembly 33, the ultrasonic transducer 331 and the riving knife 332; guide plate 34, threading through hole 3321, guide channel 341; a grating scale 35; a displacement sensor 36;

a conduit 4;

and a detection mechanism 5.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

In view of the defects of complex structure, low response speed and the like of the traditional wire bonding equipment, the invention provides a wire bonding head device which is simple and compact in structure and high in response speed.

As shown in fig. 1 and 2, the wire bonding apparatus of the present invention includes a mounting frame 1, a clamping mechanism 2, and a welding mechanism 3, wherein:

as shown in fig. 3, the clamping mechanism 2 includes a first mounting base 21, a first electromagnetic driving assembly 22, and a clamping jaw assembly 23, wherein: first mount pad 21 is connected on mounting bracket 1, and first electromagnetic drive assembly 22 sets up on first mount pad 21, and when first electromagnetic drive assembly 22 driven clamping jaw assembly 23 moved to the low level, clamping jaw assembly 23 gripped the wire rod. When the first electromagnetic driving assembly 22 drives the clamping jaw assembly 23 to move to the high position, the clamping jaw assembly 23 breaks the welded wire.

As shown in fig. 7, the welding mechanism 3 includes a second mounting seat 31, a second electromagnetic driving assembly 32, and a riving knife assembly 33, wherein: the second mounting seat 31 is connected to the mounting frame 1, the second electromagnetic driving assembly 32 is arranged on the second mounting seat 31, and the second electromagnetic driving assembly 32 drives the riving knife assembly 33 to press downwards to press the wire clamped by the clamping jaw assembly 23 and weld the wire.

In the wire bonding head device, the clamping jaw assembly 23 clamps and breaks the wire under the drive of the first electromagnetic driving assembly 22, and the riving knife assembly 33 presses the wire under the drive of the second electromagnetic driving assembly 32. The first electromagnetic driving assembly 22 and the second electromagnetic driving assembly 32 have the advantage of high response speed based on the electromagnetic driving principle, so that the response speeds of the clamping jaw assembly 23 and the riving knife assembly 33 are greatly improved, and finally the welding efficiency of the invention is remarkably improved.

In addition, compared with the conventional bonding head device, the wire cutting device is not additionally provided with a special cutting mechanism to cut the welded wire, and the clamping jaw assembly 23 drives the welded wire to move upwards so as to perform the tensile cutting on the welded wire. The invention is particularly suitable for welding the wire-shaped wires which are easy to break, such as aluminum wires with the diameter of less than 5 mil.

Alternatively, as shown in fig. 1, the first mounting seat of the clamping mechanism 2 forms an inclination angle of 30 ° to 60 ° with the horizontal direction, and the first electromagnetic driving assembly 22 drives the clamping jaw assembly 23 to move obliquely towards the riving knife assembly 33. With the arrangement, the clamping jaw assembly 23 can be ensured to be close to the riving knife assembly 33 when being lowered to the low position, so that the riving knife assembly 33 can smoothly press the wire clamped by the clamping jaw assembly 23.

As shown in fig. 3 to 6, optionally, the first electromagnetic driving assembly 22 includes a first magnet 221, a jaw mounting bracket 222 and a first coil 224, wherein: the first magnet 221 is fixedly attached to the first mounting base 21. The jaw mounting bracket 222 is elastically connected to the first mounting base 21 via a first spring piece 223, and the jaw assembly 23 is connected to a lower end of the jaw mounting bracket 222. The first coil 224 is disposed at the upper end of the jaw mounting bracket 222 and is located within the first magnet 221.

The first electromagnetic driving assembly 22 is driven by the principle that the first coil 224 disposed in the magnetic field of the first magnet 221 is energized to receive a force, the direction of the force corresponds to the direction of the current applied to the first coil 224, and the magnitude of the force is proportional to the magnitude of the current applied to the first coil 224. Based on the principle, the first coil 224 is energized to control the direction and magnitude of the current, so that the first magnet 221 can push the jaw mounting bracket 222 to move up and down at a predetermined speed, thereby driving the jaw assembly 23 to move between the low position and the high position to clamp and break the wire.

When the driving clamping jaw assembly 23 moves downwards to the low position, the first spring piece 223 is pressed to bend and deform, and when the driving clamping jaw assembly 23 moves upwards to the high position, the first spring piece 223 rebounds and resets.

Optionally, the jaw assembly 23 includes a first jaw 231, a second jaw 232, and a jaw driving mechanism 233, wherein: the first clamping jaw 231 is fixedly connected to the clamping jaw mounting bracket 222, the clamping jaw driving mechanism 233 is arranged on the clamping jaw mounting bracket 222, the second clamping jaw 232 is connected to the driving end of the clamping jaw driving mechanism 233, and the clamping jaw driving mechanism 233 drives the second clamping jaw 232 to match with the first clamping jaw 231 to clamp the wire.

In order to increase the clamping response speed of the clamping jaw assembly 23 to the wire, the clamping jaw driving mechanism 233 may also adopt an electromagnetic driving mode, as shown in fig. 4 to 6, and optionally, the clamping jaw driving mechanism 233 includes a second magnet 2331, a rotating bracket 2332 and a second coil 2334, wherein: the second magnet 2331 is fixedly connected to the jaw mounting bracket 222, the middle portion of the rotating bracket 2332 is rotatably connected to the jaw mounting bracket 222 through a rotating shaft 2333, the second jaw 232 is connected to the lower end of the rotating bracket 2332, and the second coil 2334 is disposed at the upper end of the rotating bracket 2332 and is located in the second magnet 2331.

The driving principle of the jaw driving mechanism 233 is that the second coil 2334 placed in the magnetic field of the second magnet 2331 receives a force when energized, the direction of the force corresponds to the direction of the current applied to the second coil 2334, and the magnitude of the force is proportional to the magnitude of the current applied to the second coil 2334. Based on this principle, by energizing the second coil 2334 and controlling the direction and magnitude of the current, the second magnet 2331 can push the rotating bracket 2332 to rotate around the rotating shaft 2333 at a predetermined speed, thereby driving the second clamping jaw 232 to swing towards the first clamping jaw 231 to clamp the wire.

As shown in fig. 7 to 9, optionally, the second electromagnetic driving assembly 32 includes a third magnet 321, a riving knife mounting bracket 322 and a third coil 324, wherein: the third magnet 321 is fixedly connected to the second mounting seat 31, the riving knife mounting bracket 322 is elastically connected to the second mounting seat 31 through a second spring plate 323, the riving knife assembly 33 is connected to the lower end of the riving knife mounting bracket 322, and the third coil 324 is arranged at the upper end of the riving knife mounting bracket 322 and is located in the third magnet 321.

The second electromagnetic drive assembly 32 is driven by the force applied to the third coil 324 when the third coil 324 is energized, the force being in a direction corresponding to the direction of the current applied to the third coil 324, the magnitude of the force being proportional to the magnitude of the current applied to the third coil 324. Based on this principle, by energizing the third coil 324 and controlling the direction and magnitude of the current, the third magnet 321 pushes the riving knife mounting bracket 322 to move up and down at a predetermined speed, thereby driving the riving knife assembly 33 to move down and up for resetting.

When the riving knife assembly 33 is pressed down, the second spring plate 323 is bent and deformed, and when the riving knife assembly 33 is lifted and reset, the second spring plate 323 rebounds and resets.

The ultrasonic metal welding technology has the advantages of no melting of welding materials, good conductivity after welding, no need of any soldering flux and the like. Thus, as shown in fig. 9, optionally, the riving knife assembly 33 comprises an ultrasonic transducer 331 and a riving knife 332, wherein: the ultrasonic transducer 331 is connected to the lower end of the riving knife mounting bracket 322, and the riving knife 332 is mounted on the ultrasonic transducer 331. When the riving knife 332 presses the wire clamped by the jaw assembly 33, the ultrasonic transducer 331 transmits ultrasonic waves to the riving knife 332, and the riving knife 332 performs ultrasonic welding on the wire.

As shown in fig. 9 and 10, optionally, the riving knife mounting bracket 322 is further provided with a guide plate 34, and the guide plate 34 is provided with a guide channel 341. The end of the riving knife 332 is provided with a threading through hole 3321. The wire sequentially passes through the guide channel 341 and the clamping jaw assembly 23, then passes through the wire passing through hole 3321, and is pressed and welded by the riving knife 332.

It can be seen that under the guidance of the guide channel 341 and the threading through hole 3321, the wire can smoothly enter into the jaw assembly 23 to be clamped by the jaw assembly 23, and then is guided from the jaw assembly 23 to the lower end of the riving knife 332 to be pressed by the riving knife 332, thereby preventing the occurrence of cold joint.

As shown in fig. 7 and 9, the wire bonder head apparatus of the present invention may further include a guide tube 4 passing through the bonding mechanism 3 from top to bottom. After being fed out by a wire feeding mechanism above the welding mechanism 3, the wire penetrates into the guide tube 4 from top to bottom and penetrates into the guide channel 34 on the guide plate 34 under the guidance of the guide tube 4, so that the anti-winding protection of the wire in the feeding process is realized.

Optionally, as shown in fig. 2 and 7, the welding mechanism 3 further includes a grating scale 35 disposed on the riving knife mounting frame 322 and a displacement sensor 36 disposed on the second mounting seat 31. The grating scale 35 synchronously presses down and rises along with the riving knife installation frame 322 and the riving knife component 33, and the displacement sensor 36 is used for sensing the distance of the up-and-down movement of the grating scale 35. Through the cooperation of the grating scale 35 and the displacement sensor 36, the downward pressing distance of the riving knife assembly 33 is detected, so that the riving knife assembly 33 is guaranteed to be capable of accurately pressing a wire.

Optionally, as shown in fig. 1, the wire bond head device of the present invention further includes a detection mechanism 5 disposed on the mounting bracket 1, and the detection mechanism 5 can detect an appearance effect of the welded region.

The invention also provides a bonding machine which comprises a workpiece feeding device, a workpiece conveying device, a wire feeding device, a welding detection device, a discharging device and any one wire bonding head device. Wherein: the workpiece feeding device is used for feeding a workpiece to be processed onto the workpiece conveying device; the workpiece conveying device is used for conveying workpieces to a welding station; the wire feeding device is used for supplying wires to the welding head device; the welding head device is used for welding the wire to the workpiece conveyed to the welding station; the welding detection device is used for detecting the welding quality of the welded workpiece; the blanking device is used for blanking the welded workpiece from the welding station. Through the matching of the workpiece feeding device, the workpiece conveying device, the wire feeding device, the welding detection device, the discharging device and the wire bonding head device, the bonding machine disclosed by the invention realizes the automatic welding of wires, realizes the automatic feeding and discharging of workpieces, and greatly improves the bonding efficiency.

The invention has been described above with a certain degree of particularity. It will be understood by those of ordinary skill in the art that the description of the embodiments is merely exemplary and that all changes that come within the true spirit and scope of the invention are desired to be protected. The scope of the invention is defined by the appended claims rather than by the foregoing description of the embodiments.