Auxiliary feeding mechanism of wire bonding machine

Abstract

The utility model relates to wire bonding machine supporting equipment technical field, and disclose a kind of wire bonding machine auxiliary feeding mechanism, including wire bonding machine body, wire bonding machine body includes machine body and the wire bonding mechanism located in the inside of machine body, machine body side is equipped with wire bonding uniform arrangement feeding device in the feeding window of wire bonding mechanism side feeding window;Wire bonding uniform arrangement feeding device includes uniform plate and uniform drive assembly, uniform plate is rectangular, and top is equipped with arrangement groove uniformly;Uniform drive assembly includes uniform motor, fixed support frame, connecting frame, shaft, shaft sleeve, cross bar, driving disc and connecting rod;Reciprocating swing along shaft is driven by uniform drive assembly with uniform plate, realize wire bonding batch into groove, significantly shorten feeding cycle, adapt to the high-speed operation demand of downstream welding procedure.

Description

Technical Field

[0001] This utility model relates to the technical field of wire bonding machine supporting equipment, specifically an auxiliary feeding mechanism for a wire bonding machine. Background Technology

[0002] In precision manufacturing fields such as electronics manufacturing, semiconductor packaging, and optoelectronic devices, wire bonding machines, as core equipment for achieving conductive connections between minute components, directly determine the performance stability and reliability of products. From mobile phone chips to automotive sensors, from LED lighting to aerospace components, almost all scenarios requiring delicate wire connections rely on the technical support of wire bonding machines.

[0003] In the automated operation of wire bonding machines, the feeding of conductors (iron wire) is fundamental to ensuring continuous production, and its stability directly affects the quality and efficiency of subsequent welding processes. Existing wire bonding machines generally employ a rotary feeding structure. Specifically, a drive roller drives the rotary table to rotate, and the outer circumference of the rotary table has evenly spaced grooves for holding the iron wire. A feeding support platform is located below the front of the rotary table, with symmetrical support rods on both sides of the top. Support stands for supporting and positioning the iron wire are evenly distributed on the support rods. During operation, the rotating rotary table rolls the iron wire from the grooves down and sequentially transfers it to the support stands, where it is then picked up and fed by a subsequent picking mechanism.

[0004] However, this feeding method suffers from limited feeding efficiency in practical applications. The wires must be moved one by one to the support stand by the rotation of the turntable, making rapid batch feeding impossible. Positioning accuracy is also susceptible to interference. During the rotation of the turntable and the falling of the wires, mechanical vibrations from the equipment operation or external environmental disturbances are inevitable, causing the wires in the trough to fall in the positioning area of ​​the support stand inaccurately. This positioning deviation not only requires manual adjustment but may also cause wire loss, severely impacting production continuity and overall efficiency, becoming a key bottleneck restricting the improvement of the automation level of wire bonding machines. Therefore, we propose an auxiliary feeding mechanism for wire bonding machines to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide an auxiliary feeding mechanism for a wire bonding machine, so as to solve the problems mentioned in the background art, such as the low efficiency of the existing turntable feeding mechanism of the wire bonding machine, the need to transfer the iron wire one by one, and the easy interference of vibration when the turntable rotates and the iron wire falls, which makes it impossible for the iron wire to fall accurately into the support stand, affecting the continuity and efficiency of production and restricting the level of automation.

[0006] This utility model provides the following technical solution: A wire bonding machine auxiliary feeding mechanism includes a wire bonding machine body, the wire bonding machine body includes a machine body and a wire bonding mechanism located inside the machine body, a feeding window is opened on one side of the machine body, and a wire uniformly arranged feeding device is provided at the feeding window on one side of the wire bonding mechanism. The wire uniform arrangement feeding device includes a uniform plate and a uniform drive assembly. The uniform plate is rectangular and has a base plate at its bottom. Limiting frames are connected to the top of the uniform plate around its perimeter. Arrangement slots are uniformly opened on the uniform plate within the limiting frames. The length of the arrangement slots is greater than the length of the wire being fed. Wire stacking platforms are provided at both ends of the uniform plate. Multiple wires are stacked on the stacking platforms and are parallel to the arrangement slots.

[0007] Preferably, the uniform drive assembly includes a uniform motor, a fixed support frame, a connecting frame, a shaft, a bushing, a crossbar, a drive disc, and a connecting rod. The shaft is symmetrically connected to the outer walls of both sides of the uniform plate end. The fixed support frame has a U-shaped structure, and the inner walls of both sides of the fixed support frame end are rotatably connected to the shaft via bearings. The connecting frame is symmetrically located inside the fixed support frame on the outer wall of the uniform plate end. The crossbar connects the two connecting frames on the side away from the uniform plate. The bushing is slidably sleeved on the outer circumferential wall of the crossbar, and a fixed rod is connected to the outer wall of the bushing on the side away from the uniform plate.

[0008] Preferably, the outer wall of the middle part of one end of the drive disk is connected to one end of the connecting rod, and a through hole is opened through the outer edge of the drive disk near one side, and the fixing rod moves through the through hole and extends to its outside.

[0009] Preferably, the uniform motor is located on the outer wall of the fixed support frame, and the end of the connecting rod passes through the fixed support frame and is connected to the output end of the uniform motor on its outer wall via a coupling.

[0010] Preferably, the top surface of the uniform plate is a smooth and wear-resistant surface, and the uniform plate can reciprocate along the axis of the shaft at ±15° under the drive of the uniform drive assembly.

[0011] Preferably, the uniform stepper motor is electrically connected to the control equipment of the wire bonding mechanism via wires.

[0012] This utility model has the following beneficial effects: This application significantly improves feeding efficiency. By using the wire stacking platforms at both ends inside the uniform plate, wires can be stored in batches. With the uniform drive component, the uniform plate is driven to swing back and forth along the shaft at ±15°. The inertia of the swing is used to quickly roll the wires on the stacking platform into the arrangement slots. There is no need to rely on the turntable to transfer them one by one, so that the wires can be put into the slots in batches, significantly shortening the feeding cycle and adapting to the high-speed operation requirements of downstream welding processes.

[0013] To improve positioning accuracy and stability, the pre-set size of the arrangement slot is slightly larger than the length of the welding wire, which can accurately limit the welding wire. The welding wire only rolls a short distance on the smooth and wear-resistant surface of the uniform plate, avoiding misalignment caused by mechanical vibration or external disturbance during the rotation of the turntable and the falling of the iron wire. This reduces the frequency of manual downtime for adjustment and welding wire loss, ensuring production continuity.

[0014] With a simple structure and convenient control, the uniform drive component is powered by a stepper motor, which is efficiently converted into the swing motion of the uniform plate through components such as the drive plate, connecting rod, and crossbar. The components are reliably connected and have a low failure rate. At the same time, the stepper motor is electrically connected to the wire bonding mechanism control equipment, which can realize the coordinated linkage between the feeding action and the welding process, reducing the complexity of operation.

[0015] With excellent protection and adaptability, the limiting frame around the uniform plate can prevent the wire from detaching from the uniform plate when it swings. The smooth and wear-resistant plate surface design extends the service life of the mechanism. Moreover, the whole feeding device is integrated into the feeding window of the wire bonding machine, which does not require major modifications to the wire bonding machine body. It is adaptable to the feeding needs of different specifications of wire and is highly practical. Attached Figure Description

[0016] Figure 1 This is an overall isometric view of the present invention.

[0017] Figure 2 This is an isometric view of the uniformly arranged welding wire feeding device of this utility model.

[0018] Figure 3 This is a schematic diagram of the uniform plate structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the uniform drive component structure of this utility model.

[0020] In the diagram: 1. Machine body; 2. Wire bonding mechanism; 3. Feeding window; 4. Wire bonding uniform arrangement feeding device; 41. Uniform plate; 411. Base plate; 412. Limiting frame; 413. Arrangement groove; 42. Uniform drive assembly; 421. Uniform motor; 422. Fixed support frame; 423. Connecting frame; 424. Shaft; 425. Bushing; 426. Crossbar; 427. Drive disc; 428. Connecting rod; 429. Fixing rod; 430. Through hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1 and Figure 2 As shown, an auxiliary feeding mechanism for a wire bonding machine includes a wire bonding machine body, which includes a machine body 1 and a wire bonding mechanism 2 located inside the machine body 1. The wire bonding mechanism 2 is used to complete wire bonding operations. A feeding window 3 is provided on one side of the machine body 1, and the feeding window 3 corresponds to the feeding station of the wire bonding mechanism 2. A wire uniformly arranged feeding device 4 is provided at the feeding window 3 on one side of the wire bonding mechanism 2, which is used to transport the wires in batches and in an orderly manner to the feeding station of the wire bonding mechanism 2.

[0023] The feeding device 4 is directly integrated into the feeding window 3 of the wire bonding machine body, without the need for major modifications to the wire bonding machine body, and has strong adaptability; moreover, the feeding window 3 corresponds to the feeding station of the wire bonding mechanism 2, shortening the wire bonding conveying path, reducing the risk of deviation during the conveying process, and ensuring the continuity of feeding.

[0024] Please see Figure 2 - Figure 4 As shown, the wire bonding uniform arrangement feeding device 4 includes a uniform plate 41 and a uniform drive assembly 42. The uniform plate 41 is rectangular and made of stainless steel. A base plate 411 is provided at the bottom of the uniform plate 41, which provides stable support for the uniform plate 41. Limiting frames 412 are connected to the top of the uniform plate 41 around its perimeter. The limiting frames 412 are used to prevent the wire bonding from detaching from the uniform plate 41 during movement. Arrangement grooves 413 are uniformly opened on the uniform plate 41 within the limiting frames 412. The length of the arrangement grooves 413 is slightly longer than the length of the wire bonding to ensure that the wire bonding can be accurately embedded in the groove for positioning. Wire bonding stacking platforms are integrally formed at both ends of the uniform plate 41. The stacking platforms can stack multiple wire bondings in batches, and the stacked wire bondings are parallel to the arrangement grooves 413, which facilitates the wire bonding to roll into the arrangement grooves 413.

[0025] The size design of the arrangement groove 413 can accurately limit the welding wire, avoid the welding wire displacement, and solve the existing material feeding positioning deviation problem; the stacking platform at both ends of the uniform plate 41 supports batch storage of welding wire, laying the foundation for subsequent batch feeding; the limiting frame 412 can prevent the welding wire from falling when swinging, improving the stability of operation; the stainless steel uniform plate 41 is wear-resistant and corrosion-resistant, extending the service life of the mechanism.

[0026] The uniform drive assembly 42 includes a uniform motor 421, a fixed support frame 422, a connecting frame 423, a shaft 424, a bushing 425, a crossbar 426, a drive disk 427, and a connecting rod 428. The shaft 424 is symmetrically connected to the outer walls on both sides of the uniform plate 41. The fixed support frame 422 has a U-shaped structure, and the inner walls on both sides of the fixed support frame 422 are rotatably connected to the shaft 424 through bearings, so that the uniform plate 41 can rotate around the axis of the shaft 424. The connecting frame 423 is symmetrically located on the outer wall of the uniform plate 41 inside the fixed support frame 422, providing stable support for the entire drive assembly. The crossbar 426 connects the two connecting frames 423 on the side away from the uniform plate 41, forming a linkage structure. The bushing 425 is slidably sleeved on the outer circumferential wall of the crossbar 426, and the bushing 425 can slide along the length direction of the crossbar 426. A fixed rod 429 is connected to the outer wall of the bushing 425 on the side away from the uniform plate 41. One end of the drive disc 427 is connected to one end of the connecting rod 428. A through hole 430 is provided on one side of the outer edge of the drive disc 427. The fixed rod 429 moves through the through hole 430 and extends to its outside, allowing the fixed rod 429 to slide within the through hole 430. The uniform motor 421 is fixed to the outer wall of the fixed support frame 422 by bolts. The end of the connecting rod 428 passes through the fixed support frame 422 and is connected to the output end of the uniform motor 421 on its outer wall by a coupling to realize power transmission. The structural design of the uniform drive assembly 42 can convert the rotational power of the uniform motor 421 into the swinging motion of the uniform plate 41. The transmission path is clear, the component connection is reliable, and the failure rate is low. The sliding fit between the bushing 425 and the crossbar 426 and the movable connection between the fixed rod 429 and the through hole 430 ensure smooth power transmission and avoid jamming. The U-shaped fixed support frame 422 does not affect the swinging of the uniform plate 41 and can provide stable support, with a compact structure.

[0027] Preferably, the top surface of the uniform plate 41 is a smooth, wear-resistant surface, which reduces the friction during wire rolling and facilitates the rapid sliding of the wire into the arrangement groove 413. Driven by the uniform drive assembly 42, the uniform plate 41 can reciprocate along the axis of the shaft 424 at ±15°. This oscillation angle utilizes inertia to drive the wire into the groove while preventing excessive angle from causing the wire to bounce. The smooth, wear-resistant surface reduces the frictional resistance between the wire and the uniform plate 41, increasing the wire's entry speed into the groove. The ±15° reciprocating oscillation angle design ensures efficient wire entry into the groove while preventing the wire from detaching from the arrangement groove 413 due to excessive oscillation amplitude, balancing efficiency and stability. The uniform motor 421 is a stepper motor and is electrically connected to the control equipment of the wire welding mechanism 2 via wires, enabling coordinated operation of the feeding action and the welding process, eliminating the need for manual control and improving automation.

[0028] Workflow: The operator places a batch of welding wires parallel on the stacking platforms at both ends of the uniform plate 41; the equipment is started, and the uniform motor 421 starts under the command of the welding mechanism 2, driving the connecting rod 428 and the drive disk 427 to rotate; when the drive disk 427 rotates, the fixed rod 429 in the through hole 430 moves in a circular motion with the drive disk 427, driving the bushing 425 to slide along the crossbar 426, and the connecting rod 428 slides inside the through hole 430, thereby driving the uniform plate 41 to swing back and forth around the shaft 424 by ±15° through the connecting frame 423; during the swing of the uniform plate 41, the welding wires on the stacking platform roll into the arrangement groove 413 in batches under the action of inertia and the smooth plate surface to achieve positioning; the subsequent picking mechanism picks up the welding wires from the base plate 411 and sends them into the welding mechanism 2 through the feeding window 3 to complete the welding, achieving efficient and precise feeding.

[0029] This application significantly improves the feeding efficiency. By using the wire stacking platforms at both ends inside the uniform plate 41, wires can be stored in batches. With the uniform drive component 42, the uniform plate 41 is driven to swing back and forth along the shaft 424 at ±15 degrees. The inertia of the swing is used to quickly roll the wires on the stacking platform into the arrangement slot 413. There is no need to rely on the turntable to transfer them one by one, so that the wires can be put into the slot in batches, significantly shortening the feeding cycle and adapting to the high-speed operation requirements of downstream welding processes.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An auxiliary feeding mechanism for a wire bonding machine, comprising a wire bonding machine body, characterized in that: The wire bonding machine body includes a machine body (1) and a wire bonding mechanism (2) located inside the machine body (1). A feeding window (3) is provided on one side of the machine body (1), and a wire bonding uniformly arranged feeding device (4) is provided at the feeding window (3) on one side of the wire bonding mechanism (2). The wire uniform arrangement feeding device (4) includes a uniform plate (41) and a uniform drive component (42). The uniform plate (41) is rectangular. The bottom of the uniform plate (41) is provided with a base plate (411). The top of the uniform plate (41) is connected to a limiting frame (412). The uniform plate (41) is located within the limiting frame (412). The uniform plate (41) is uniformly provided with arrangement grooves (413). The length of the arrangement grooves (413) is slightly greater than the length of the wire being fed. The two ends of the uniform plate (41) are provided with wire stacking platforms. Multiple wires are stacked on the stacking platforms and are parallel to the arrangement grooves (413).

2. The auxiliary feeding mechanism for a wire bonding machine according to claim 1, characterized in that: The uniform drive assembly (42) includes a uniform motor (421), a fixed support frame (422), a connecting frame (423), a shaft (424), a bushing (425), a crossbar (426), a drive disc (427), and a connecting rod (428). The shaft (424) is symmetrically connected to the outer walls on both sides of the uniform plate (41). The fixed support frame (422) has a U-shaped structure, and the inner walls on both sides of the fixed support frame (422) are connected to the uniform plate (41) via bearings. The shaft (424) is rotatably connected, the connecting frame (423) is symmetrically located on the outer wall of the end of the uniform plate (41) inside the fixed support frame (422), the crossbar (426) is connected between the two connecting frames (423) on the side away from the uniform plate (41), the bushing (425) is slidably sleeved on the outer circumferential wall of the crossbar (426), and the outer wall of the bushing (425) away from the uniform plate (41) is connected to a fixing rod (429).

3. The auxiliary feeding mechanism for a wire bonding machine according to claim 2, characterized in that: The outer wall of the middle part of one end of the drive disk (427) is connected to one end of the connecting rod (428). The drive disk (427) has a through hole (430) near one side of its outer edge. The fixing rod (429) moves through the through hole (430) and extends to its outside.

4. The auxiliary feeding mechanism for a wire bonding machine according to claim 3, characterized in that: The uniform motor (421) is located on the outer wall of the fixed support frame (422), and the end of the connecting rod (428) passes through the fixed support frame (422) and is connected to the output end of the uniform motor (421) on its outer wall via a coupling.

5. The auxiliary feeding mechanism for a wire bonding machine according to claim 1, characterized in that: The top surface of the uniform plate (41) is a smooth and wear-resistant surface, and the uniform plate (41) can reciprocate along the axis of the shaft (424) by ±15° under the drive of the uniform drive assembly (42).

6. The auxiliary feeding mechanism for a wire bonding machine according to claim 4, characterized in that: The uniform motor (421) is a stepper motor and is electrically connected to the control device of the wire bonding mechanism (2) via wires.

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