Quick cleaver replacement structure

Abstract

The utility model relates to the technical field of bonding machines, in particular to a chopper rapid replacement structure which comprises a main support, a chopper, a transducer, an ignition rod and an ignition rod support, the transducer is installed at the front end of the main support, and the chopper is detachably installed at the end of the transducer; the ignition rod support is rotatably and adjustably installed on the side portion of the main support, the ignition rod is installed at the front end of the ignition rod support, and the ignition rod is adjacent to the chopper. The ignition rod support is rotatably and adjustably installed on the main support, and therefore the chopper can be replaced by rotating the ignition rod support to enable the ignition rod to move, and the effect of rapidly replacing the chopper is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of wire bonding machines, in particular to a quick-change structure for a bonding tool. Background Art

[0002] A wire bonding machine bonds a metal wire to a chip and a substrate by ball bonding or wedge bonding. The bonding tool is installed at the end of a transducer. The ball bonding tool and the wedge bonding tool of a ball-wedge integrated wire bonding machine are replaceable. When bonding by ball bonding, first, a spark rod melts the metal wire at the tip of the ball bonding tool into a sphere, then the bonding tool descends to press the spherical solder joint on the chip or the substrate, and then the transducer welds the metal wire to the chip or the substrate. Therefore, the bonding tool is very close to the spark rod. For example, in a Z-axis bonding head mechanism disclosed in CN116984806A, the distance between the transducer and the spark rod is very small, and the operating space for replacing the ball bonding tool is very small. It is necessary to disassemble the spark rod to replace the bonding tool, and the replacement of the bonding tool is inconvenient. Content of the Utility Model

[0003] The purpose of the utility model is to provide a quick-change structure for a bonding tool, which has the characteristic that the bonding tool can be quickly replaced.

[0004] To achieve the above object, the utility model adopts the following technical solutions:

[0005] A quick-change structure for a bonding tool, comprising a main bracket, a bonding tool, a transducer, a spark rod, and a spark rod bracket. The transducer is installed at the front end of the main bracket, and the bonding tool is detachably installed at the end of the transducer;

[0006] The spark rod bracket is rotatably and adjustably installed on the side of the main bracket. The spark rod is installed at the front end of the spark rod bracket, and the spark rod is adjacent to the bonding tool.

[0007] In some embodiments, a limit post and a locking member are provided on the side of the main bracket. The locking member passes through the spark rod bracket and is screwed into the main bracket. A limit groove cooperating with the limit post is provided at the rear end of the spark rod bracket.

[0008] In some embodiments, the spark rod bracket includes a spark rod arm and a rotating arm. The rear end of the spark rod arm is connected to the front end of the rotating arm, and the spark rod is fixed to the front end of the spark rod arm.

[0009] In some embodiments, a bonding tool installation hole is provided at the bottom of the front end of the transducer, and a detachable locking member is provided on the side of the transducer. The top of the bonding tool is inserted into the bonding tool installation hole, and the locking member abuts against the top of the bonding tool.

[0010] In some embodiments, the locking member is located on the right side of the transducer, and the lighter rod bracket is located on the right side of the main bracket.

[0011] In some embodiments, the main bracket is provided with a swing bracket, and the transducer is mounted on the swing bracket.

[0012] In some embodiments, the swing bracket includes a platform frame, a mounting frame, and an auxiliary frame. The rear end of the platform frame is connected to the front end of the main bracket through a spring bearing, and the top end of the mounting frame is connected to the front end of the platform frame through a spring bearing;

[0013] The rear end of the auxiliary frame is connected to the main bracket through a spring bearing, the front end of the auxiliary frame is connected to the mounting frame, and the transducer is disposed on the mounting frame.

[0014] In some embodiments, the transducer is detachably mounted on the mounting frame.

[0015] The technical solution provided by the present invention may include the following beneficial effects:

[0016] The lighter rod bracket is rotatably and adjustably mounted on the main bracket. Therefore, by rotating the lighter rod bracket to displace the lighter rod, the bonding tool can be replaced, achieving the effect of quickly replacing the bonding tool. The mounting frame is supported by the platform frame and the auxiliary frame through elastic bearings. When the platform frame is pressed and swings, the mounting frame can move up and down smoothly, thereby driving the bonding tool to move up and down to ensure the bonding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the bonding tool quick replacement structure mounting a ball bonding tool;

[0018] Figure 2 is a schematic diagram of the bonding tool quick replacement structure mounting a wedge bonding tool;

[0019] Figure 3 is a schematic diagram of the bonding tool quick replacement structure after removing the lighter rod arm;

[0020] Wherein, wire 01, main bracket 1, limit post 11, locking member 12, bonding tool 2, transducer 3, locking member 31, lighter rod 4, lighter rod bracket 5, lighter rod arm 51, rotating arm 52, limit groove 53, swing bracket 6, platform frame 61, mounting frame 62, auxiliary frame 63, spring bearing 64. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0022] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0024] The following Figures 1 to 3 describes a quick-change structure for a bonding tool of the embodiments of the present utility model.

[0025] A quick-change structure for a bonding tool includes a main bracket 1, a bonding tool 2, a transducer 3, a spark rod 4, and a spark rod bracket 5. The transducer 3 is installed at the front end of the main bracket 1, and the bonding tool 2 is detachably installed at the end of the transducer 3;

[0026] The spark rod bracket 5 is rotatably and adjustably installed on the side of the main bracket 1. The spark rod 4 is installed at the front end of the spark rod bracket 5, and the spark rod 4 is adjacent to the bonding tool 2.

[0027] The spark rod bracket 5 is rotatably and adjustably installed on the main bracket 1. Therefore, by rotating the spark rod bracket 5 to displace the spark rod 4, a space can be provided for replacing the bonding tool 2, achieving the effect of quickly replacing the bonding tool 2. When bonding in the ball bonding method, first, the spark rod 4 melts the metal wire 01 at the tip of the ball bonding tool 2 into a sphere. Then, the bonding tool 2 descends to press the spherical solder joint on the chip or substrate. Then, the transducer 3 welds the metal wire 01 to the chip. Then, the bonding tool 2 pulls the metal wire 01 to the substrate, and the transducer 3 welds the metal wire 01 to the substrate. In this embodiment, the bonding tool 2 is a ball bonding tool, and the transducer 3 is a ball bonding transducer.

[0028] In an embodiment of the present utility model, the transducer 3 is detachably mounted on the mounting bracket. At this time, the transducer 3 can be replaced with a wedge bonding transducer. Based on different welding methods, the welding power is different, so different transducers are used for wedge bonding and ball bonding. When bonding by the wedge bonding method, the wedge bonding capillary presses the end of the wire 01 on the chip or the substrate, and then the transducer 3 welds the wire 01 on the chip or the substrate. At this time, the spark rod 4 is idle.

[0029] In an embodiment of the present utility model, a limiting post 11 and a locking member 12 are provided on the side of the main bracket 1. The locking member 12 passes through the spark rod bracket 5 and then is screwed into the main bracket 1. A limiting groove 53 matching with the limiting post 11 is provided at the rear end of the spark rod bracket 5. The locking member 12 is used to position the spark rod bracket 5 on the main bracket 1. By loosening the locking member 12, the spark rod bracket 5 can swing along the locking member 12 to make way for the replacement of the capillary 2, making the replacement of the capillary 2 simple and achieving the effect of quickly replacing the capillary 2. The limiting post 11 is used to position the spark rod bracket 5 so that the spark rod bracket 5 can be reset to its original position and then the locking member 12 is tightened again. Exemplarily, the locking member 12 is threadedly connected to the main bracket 1, and the locking member 12 has a table surface that abuts against the spark rod bracket 5. There is a space between the spark rod 4 and the bonding table surface below, and the limiting groove 53 is located on the lower side of the spark rod bracket 5, so that the front end of the spark rod bracket 5 swings downward.

[0030] Exemplarily, the spark rod bracket 5 is provided with a V-shaped mounting groove, and the locking member 12 penetrates through the bottom of the mounting groove. When the locking member 12 is loosened, the spark rod bracket 5 can be disassembled or installed.

[0031] In an embodiment of the present utility model, the spark rod bracket 5 includes a spark rod arm 51 and a rotating arm 52. The rear end of the spark rod arm 51 is connected to the front end of the rotating arm 52, and the spark rod 4 is fixed to the front end of the spark rod arm 51. The spark rod arm 51 and the spark rod 4 can be modularly connected to the rotating arm 52, which is convenient for assembly. Exemplarily, the spark rod arm 51 and the rotating arm 52 are fixedly connected by screws.

[0032] In an embodiment of the present utility model, a capillary 2 mounting hole is provided at the bottom of the front end of the transducer 3, and a detachable locking member 31 is provided on the side of the transducer 3. The top of the capillary 2 is inserted into the capillary 2 mounting hole, and the locking member 31 abuts against the top of the capillary 2. The replacement of the capillary 2 can be realized through the detachable locking member 31, and the operation is simple and fast. Exemplarily, the transducer 3 is provided with a threaded hole perpendicular to and communicating with the capillary 2 mounting hole, and the locking member 31 is screwed into the threaded hole and abuts against the capillary 2.

[0033] In an embodiment of the present utility model, the locking member 31 is located on the right side of the transducer 3, and the lighter rod bracket 5 is located on the right side of the main bracket 1. The operator can use the right hand to rotate the lighter rod bracket 5 and operate the locking member 31, which is convenient for operation.

[0034] In an embodiment of the present utility model, the main bracket 1 is provided with a swing bracket 6, and the transducer 3 is installed on the swing bracket 6 to realize the up and down movement of the splitting blade 2.

[0035] Preferably, the swing bracket 6 includes a platform frame 61, a mounting frame 62 and an auxiliary frame 63. The rear end of the platform frame 61 is connected to the front end of the main bracket 1 through a spring bearing 64, and the top end of the mounting frame 62 is connected to the front end of the platform frame 61 through a spring bearing 64; the rear end of the auxiliary frame 63 is connected to the main bracket 1 through a spring bearing 64, the front end of the auxiliary frame 63 is connected to the mounting frame 62, and the transducer 3 is arranged on the mounting frame 62. The mounting frame 62 is supported by the platform frame 61 and the auxiliary frame 63. When the platform frame 61 is pressed and swings, the mounting frame 62 can move up and down smoothly, thereby driving the splitting blade 2 to move up and down, so that the splitting blade 2 presses the wire 01 against the chip or the substrate and moves the splitting blade 2 away from the chip. Based on the connection between the mounting frame 62 and the platform frame 61 with a spring bearing 64, it plays a buffering role when the splitting blade 2 abuts against the chip or the substrate. Exemplarily, the spring bearing can adopt an elastic bearing of the CFLEX brand.

[0036] Other components and operations of a splitting blade quick replacement structure according to an embodiment of the present utility model are known to those of ordinary skill in the art, and will not be described in detail here.

[0037] In the description of this specification, the descriptions referring to terms such as "embodiment", "example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0038] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and purposes of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A quick-change structure for a riving knife, characterized in that: It comprises a main support, a splitting knife, a transducer, a fire rod and a fire rod support, wherein the transducer is installed at the front end of the main support, and the splitting knife is detachably installed at the end of the transducer; The fire rod bracket is rotatably and adjustably mounted on the side of the main bracket, the fire rod is mounted on the front end of the fire rod bracket, and the fire rod is adjacent to the splitting knife.

2. The rapid replacement structure of the riving knife according to claim 1 is characterized in that: A limiting column and a locking piece are arranged on the side of the main bracket. The locking piece passes through the fire rod bracket and is screwed into the main bracket. A limiting groove cooperating with the limiting column is arranged at the rear end of the fire rod bracket.

3. The rapid replacement structure of the riving knife according to claim 2 is characterized in that: The fire rod bracket comprises a fire support arm and a rotating support arm, the rear end of the fire support arm is connected to the front end of the rotating support arm, and the fire rod is fixed to the front end of the fire support arm.

4. The rapid replacement structure for riving knives according to claim 1, 2 or 3, characterized in that: A riving knife mounting hole is provided at the bottom of the front end of the transducer, a detachable locking piece is provided at the side of the transducer, the top of the riving knife is inserted into the riving knife mounting hole, and the locking piece abuts against the top of the riving knife.

5. The rapid replacement structure for riving knives according to claim 4, characterized in that: The locking piece is located on the right side of the transducer, and the fire rod bracket is located on the right side of the main bracket.

6. The rapid replacement structure for riving knives according to claim 1, 2 or 3, characterized in that: The main bracket is provided with a swing bracket, and the transducer is installed on the swing bracket.

7. The rapid replacement structure for riving knives according to claim 6, characterized in that: The swing bracket includes a platform frame, a mounting frame and an auxiliary frame, the rear end of the platform frame is connected to the front end of the main bracket through a spring bearing, and the top end of the mounting frame is connected to the front end of the platform frame through a spring bearing; The rear end of the auxiliary frame is connected to the main frame through a spring bearing, the front end of the auxiliary frame is connected to the mounting frame, and the transducer is arranged on the mounting frame.

8. The rapid replacement structure for riving knives according to claim 7, characterized in that: The transducer is detachably mounted on the mounting frame.

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