Bonding head of ultrasonic welding wire machine

Abstract

The utility model discloses a bonding head of an ultrasonic welding machine, which relates to the technical field of ultrasonic welding machines, and comprises a connecting mechanism fixedly connected with the bonding head and an energy converter fixed at one end of the connecting mechanism far away from the bonding head, the connecting mechanism comprises a connecting mechanism body, two ends of the connecting mechanism body are provided with sliding chutes, and the sliding chutes are arranged in the connecting mechanism body. The mechanism body is provided with fixing blocks through a sliding groove, the fixing blocks comprise the front end fixing block and the rear end fixing block, one end of the front end fixing block is provided with a fixing hole used for being connected with a bonding head, and one end of the rear end fixing block is provided with a second fixing hole used for being connected with a transducer. The front end fixing block and the rear end fixing block which can move up and down and further adjust the position are arranged on the two sides of the mechanism body, during use, the front end fixing block and the rear end fixing block can be adjusted to adapt to multi-position flexible installation of a bonding head and a transducer, and then the use effect of the device is effectively improved; and the practicability of the device is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of ultrasonic welding machine technology, specifically an ultrasonic wire welding machine connector. Background Technology

[0002] Wire bonding machines are widely used in the semiconductor packaging industry. With the development of the semiconductor packaging industry, wide lead frames are becoming increasingly common. Consequently, the transducer mounted on the bonding head of the wire bonding machine has a wider forward and backward working stroke on the worktable.

[0003] The surface temperature of the workbench is set to 220 degrees Celsius or even higher depending on the specific product being welded. The temperature varies significantly across different areas of the space above the workbench, decreasing further away from the center. As the connector drives the transducer to operate in different areas, the transducer's heating conditions constantly change, with temperature differences reaching tens of degrees Celsius. This causes variations in the distance between the transducer's ceramic nozzle and the connector body due to the varying heating temperatures. The consequence is weld misalignment, which can lead to product quality issues in precision welding.

[0004] A utility model patent with Chinese patent publication number CN210306365U discloses a mechanism for connecting a transducer and a bonding head on a wire bonding machine. This patent uses a short transducer, and the transducer and bonding head are not directly connected; instead, a separate mechanism is used. This mechanism uses Invar or Super Invar materials. Because Invar and Super Invar materials have much lower thermal expansion than other common materials, the change in distance between the transducer nozzle and the bonding head body due to temperature variations is reduced, greatly improving the problem of solder joint misalignment. However, the connection mechanism in this patent has a rather simplistic shape and function, limiting its practical application. Therefore, this utility model proposes a bonding head for an ultrasonic wire bonding machine. Utility Model Content

[0005] Technical problems to be solved

[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an ultrasonic wire bonding machine connector.

[0007] Technical solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: an ultrasonic wire bonding machine connector, comprising a connecting mechanism fixedly connected to the connector, and a transducer fixed at the end of the connecting mechanism away from the connector. The connecting mechanism includes a connecting mechanism body, with sliding grooves at both ends of the mechanism body. A fixing block is mounted on the mechanism body through the sliding grooves. The fixing block includes a front fixing block and a rear fixing block. One end of the front fixing block is provided with a fixing hole for connecting the connector, and one end of the rear fixing block is provided with a fixing hole for connecting the transducer. Threaded holes are also provided on the front and rear fixing blocks, with limit studs threaded inside the threaded holes. The front and rear fixing blocks are movable up and down on both sides of the mechanism body, allowing for position adjustment. During use, the front and rear fixing blocks can be adjusted to accommodate flexible installation of the connector and transducer in multiple positions, thereby effectively improving the performance and practicality of the device.

[0009] Preferably, the mounting surfaces of the front fixing block and the rear fixing block are arranged in parallel.

[0010] Preferably, both the front-end fixing block and the rear-end fixing block are provided with rail grooves inside, and the rail grooves are adapted to the sliding grooves.

[0011] Preferably, both the front-end fixing block and the rear-end fixing block have multiple threaded holes, which are evenly arranged vertically.

[0012] Preferably, a screw is inserted inside the fixing hole, and the head is fixed to the front end of the head by the screw.

[0013] Preferably, a screw is inserted inside the second fixing hole, and the transducer is fixed to the rear end of the connector by the screw.

[0014] Beneficial effects:

[0015] Compared with existing technologies, the ultrasonic wire bonding machine head has the following advantages:

[0016] This invention features a front-end fixing block and a rear-end fixing block that can move up and down and thus adjust their positions on both sides of the main body of the device. During use, the front-end fixing block and the rear-end fixing block can be adjusted to accommodate flexible installation of the head and transducer in multiple positions, thereby effectively improving the performance of the device and enhancing its practicality. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the connection mechanism of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the main body of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of this utility model.

[0021] In the picture:

[0022] 1. Connecting head; 2. Connecting mechanism; 3. Transducer; 201. Mechanism body; 2011. Slide groove; 2012. Front fixing block; 2013. Rear fixing block; 202. Fixing hole; 203. Fixing hole two; 20. Threaded hole; 205. Limiting stud; 206. Rail groove. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-3As shown, this utility model provides a technical solution: an ultrasonic wire bonding machine connector, including a connecting mechanism 2 fixedly connected to the connector 1, and a transducer 3 fixed to the end of the connecting mechanism 2 away from the connector 1. The connecting mechanism 2 includes a connecting mechanism body 201, with sliding grooves 2011 at both ends of the mechanism body 201. Fixing blocks are mounted on the mechanism body 201 through the sliding grooves 2011. The fixing blocks include a front fixing block 2012 and a rear fixing block 2013. One end of the front fixing block 2012 is provided with a fixing hole 202 for connecting the connector 1, and one end of the rear fixing block 2013 is provided with a fixing hole 202. The end is provided with a fixing hole 203 for connecting the transducer 3. The front fixing block 2012 and the rear fixing block 2013 are also provided with threaded holes 20. The internal threads of the threaded holes 20 are connected to limit studs 205. The front fixing block 2012 and the rear fixing block 2013 are provided on both sides of the main body 201, which can move up and down and thus adjust their positions. In use, the front fixing block 2012 and the rear fixing block 2013 can be adjusted to adapt to the flexible installation of the head 1 and the transducer 3 in multiple positions, thereby effectively improving the use effect of the device and enhancing its practicality.

[0025] Please refer to the following carefully. Figure 1 and Figure 2 The mounting surfaces of the front fixing block 2012 and the rear fixing block 2013 are arranged in parallel. The interior of the front fixing block 2012 and the rear fixing block 2013 is provided with a rail groove 206, which is adapted to the slide groove 2011. There are multiple threaded holes 20 on the front fixing block 2012 and the rear fixing block 2013, and the multiple threaded holes 20 are evenly arranged vertically.

[0026] In this application, a screw is inserted inside the fixing hole 202, and the connector 1 is fixed to the front end of the connector 1 by the screw. A screw is inserted inside the fixing hole 203, and the transducer 3 is fixed to the rear end of the connector 1 by the screw.

[0027] Working principle: A front fixing block 2012 and a rear fixing block 2013 that can move up and down and thus adjust their positions are provided on both sides of the main body 201. During use, the front fixing block 2012 and the rear fixing block 2013 can be adjusted to adapt to the flexible installation of the head 1 and the transducer 3 in multiple positions.

[0028] 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.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An ultrasonic wire bonding machine connector, comprising a connecting mechanism (2) fixedly connected to the connector (1), and a transducer (3) fixed to the end of the connecting mechanism (2) away from the connector (1), characterized in that: The connecting mechanism (2) includes a connecting mechanism body (201). The two ends of the mechanism body (201) are provided with sliding grooves (2011). The mechanism body (201) is equipped with a fixing block through the sliding grooves (2011). The fixing block includes a front fixing block (2012) and a rear fixing block (2013). One end of the front fixing block (2012) is provided with a fixing hole (202) for connecting the connector (1). One end of the rear fixing block (2013) is provided with a fixing hole (203) for connecting the transducer (3). The front fixing block (2012) and the rear fixing block (2013) are also provided with threaded holes (20). The internal threads of the threaded holes (20) are connected to limit studs (205).

2. The ultrasonic wire bonding machine connector according to claim 1, characterized in that: The mounting surfaces of the front fixing block (2012) and the rear fixing block (2013) are arranged in parallel.

3. The ultrasonic wire bonding machine connector according to claim 1, characterized in that: Both the front fixing block (2012) and the rear fixing block (2013) are provided with rail grooves (206), which are adapted to the sliding groove (2011).

4. The ultrasonic wire bonding machine connector according to claim 1, characterized in that: The front-end fixing block (2012) and the rear-end fixing block (2013) each have multiple threaded holes (20), which are evenly arranged vertically.

5. The ultrasonic wire bonding machine connector according to claim 1, characterized in that: A screw is inserted inside the fixing hole (202), and the head (1) is fixed to the front end of the head (1) by the screw.

6. The ultrasonic wire bonding machine connector according to claim 1, characterized in that: A screw is inserted inside the second fixing hole (203), and the transducer (3) is fixed to the rear end of the head (1) by the screw.

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