Welding wire pitch changing mechanism suitable for automatic welding wire machine

Abstract

The utility model relates to the technical field of automatic welding wire machines, in particular to a welding wire pitch changing mechanism suitable for an automatic welding wire machine, which comprises a pitch changing fixing plate, the surface of the pitch changing fixing plate is fixedly connected with a first linear guide rail, and the surface of the first linear guide rail is slidably connected with a first sliding block. The variable-pitch guide groove plate is fixedly connected with the lifting block, the lifting block is in threaded connection with the rotating lead screw, the third linear guide rail is in sliding connection with the third sliding block, the third sliding block is fixedly connected with the fixed block, the fixed block is fixedly connected with the connecting rod, and the connecting rod is movably connected with the follower wheel. The motor runs to drive the variable-pitch guide groove plate to move up and down, so that the follower wheel moves on the surface of the guide groove, and the fixing block connected with the follower wheel slides on the surface of the third linear guide rail, so that equidistant variable pitch of the solder tip on the fixing block is realized, the welding process is simplified, the production efficiency is greatly improved, and the labor intensity of operators is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic wire bonding machines, and specifically relates to a wire bonding pitch-changing mechanism applicable to an automatic wire bonding machine. Background Technique

[0002] A fully automatic wire bonding machine is an opto-mechatronic device integrating computer control, motion control, image processing, network communication, and consisting of multiple high-difficulty XYZ platforms, which is a very complex device.

[0003] The fully automatic wire bonding machine requires high responsiveness, low vibration, high efficiency, a stable ultrasonic output and sparking system, and highly accurate image capture of the equipment. The welding material realizes full-automatic cyclic welding through a fully automatic loading and unloading system, and is widely used in the internal lead welding of light-emitting diodes, SMD chips, high-power LEDs, triodes, digital tubes, dot matrix boards, backlights, and IC soft-packaged CCD modules and some special semiconductors. However, at present, the soldering iron head of the existing fully automatic wire bonding machine is fixed and cannot be controlled, and the welding process is relatively troublesome. Content of the Utility Model

[0004] The purpose of the utility model is to provide a wire bonding pitch-changing mechanism applicable to an automatic wire bonding machine, so as to solve the problem that the soldering iron head of the existing fully automatic wire bonding machine is fixed and cannot be controlled, and the welding process is relatively troublesome as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a wire bonding pitch-changing mechanism applicable to an automatic wire bonding machine, including a pitch-changing fixed plate, a first linear guide rail is fixedly connected to the surface of the pitch-changing fixed plate, a first slider is slidably connected to the surface of the first linear guide rail, a mounting plate is fixedly connected to the upper surface of the pitch-changing fixed plate, a motor is fixedly connected to the upper surface of the mounting plate, a rotating lead screw is movably connected to the output end of the motor, a second slider is fixedly connected to the side of the pitch-changing fixed plate away from the first linear guide rail, a second linear guide rail is slidably connected to the surface of the second slider, a pitch-changing guide groove plate is fixedly connected to the surface of the second linear guide rail, a guide groove is opened on the surface of the pitch-changing guide groove plate, a lifting block is fixedly connected to the surface of the pitch-changing guide groove plate, a linear guide rail fixed plate is fixedly connected to the side of the pitch-changing fixed plate away from the first linear guide rail, a third linear guide rail is fixedly connected to the surface of the linear guide rail fixed plate, a third slider is slidably connected to the surface of the third linear guide rail, a fixed block is fixedly connected to the surface of the third slider, a connecting rod is fixedly connected to the surface of the fixed block, a follower wheel is movably connected to the end of the connecting rod away from the fixed block, a connecting block is fixedly connected to the surface of the fixed block, a soldering iron head is fixedly connected to the surface of the connecting block, and a solder feeding tube is fixedly connected to the surface of the connecting block.

[0006] Preferably, the variable pitch fixing plate is plate-shaped, and the variable pitch fixing plate is slidably connected through a first linear guide rail and a first slider.

[0007] Preferably, the rotating lead screw penetrates through the mounting plate, and the rotating lead screw is rotatably connected to the mounting plate through a motor.

[0008] Preferably, the variable pitch guide groove plate is slidably connected to the variable pitch fixing plate through a second slider and a second linear guide rail, and the inclination angles of the four groups of guide grooves are different.

[0009] Preferably, the lifting block is threadedly connected to the rotating lead screw, and the variable pitch guide groove plate is slidably connected to the second slider through the rotating lead screw and the lifting block.

[0010] Preferably, the fixed block is slidably connected to the linear guide rail fixing plate through a third linear guide rail and a third slider, and the connecting rod is rod-shaped.

[0011] Preferably, the follower wheel rotates on the surface of the guide groove through the connecting rod, and the soldering iron head and the solder feeding tube are both inserted and connected to the connecting block.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. Through the fixed connection between the variable pitch guide groove plate and the lifting block, the threaded connection between the lifting block and the rotating lead screw, the sliding connection between the third linear guide rail and the third slider, the fixed connection between the third slider and the fixed block, the fixed connection between the fixed block and the connecting rod, and the movable connection between the connecting rod and the follower wheel, the motor operation drives the variable pitch guide groove plate to move up and down, so that the follower wheel moves on the surface of the guide groove, making the fixed block connected to the follower wheel slide on the surface of the third linear guide rail, thereby realizing the equal pitch and variable pitch of the soldering iron head on the fixed block, further simplifying the welding process, greatly improving the production efficiency, and reducing the labor intensity of the operator.

[0014] 2. Through the sliding connection between the second slider and the second linear guide rail, the fixed connection between the second linear guide rail and the variable pitch guide groove plate, the fixed connection between the variable pitch fixing plate and the linear guide rail fixing plate, the fixed connection between the linear guide rail fixing plate and the third linear guide rail, the sliding connection between the third linear guide rail and the third slider, the fixed connection between the third slider and the fixed block, the fixed connection between the fixed block and the connecting rod, the movable connection between the connecting rod and the follower wheel, the fixed connection between the fixed block and the connecting block, the fixed connection between the connecting block and the soldering iron head, and the fixed connection between the connecting block and the solder feeding tube, the whole plate welding process is greatly simplified, the structure is simple and reliable, and it can be flexibly changed according to the needs of different customers, and is applicable to various fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view three-dimensional schematic diagram of the structure of the present utility model;

[0016] Figure 2 It is a rear - view three - dimensional schematic diagram of the structure of the present utility model;

[0017] Figure 3 It is a side - view three - dimensional schematic diagram of the structure of the present utility model;

[0018] Figure 4 For the present utility model Figure 3 An enlarged schematic diagram of the structure at position A in it;

[0019] Figure 5 It is a partial three - dimensional schematic diagram of the structure of the pitch - changing mechanism of the present utility model.

[0020] In the figure: 1. Pitch - changing fixed plate; 2. First linear guide rail; 3. First slider; 4. Mounting plate; 5. Motor; 6. Rotating lead screw; 7. Second slider; 8. Second linear guide rail; 9. Pitch - changing guide groove plate; 10. Guide groove; 11. Lifting block; 12. Linear guide rail fixed plate; 13. Third linear guide rail; 14. Third slider; 15. Fixed block; 16. Connecting rod; 17. Follow - up wheel; 18. Connecting block; 19. Soldering iron tip; 20. Solder feeding tube. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-5 , an embodiment provided by the present utility model:

[0023] A wire bonding pitch-changing mechanism applicable to an automatic wire bonding machine, including a pitch-changing fixed plate 1. The pitch-changing fixed plate 1 is used to fix the pitch-changing mechanism. The surface of the pitch-changing fixed plate 1 is fixedly connected with a first linear guide rail 2. The surface of the first linear guide rail 2 is slidably connected with a first slider 3. The first linear guide rail 2 and the first slider 3 are used to install the wire bonding pitch-changing mechanism on the automatic wire bonding machine and enable it to slide up and down. The upper surface of the pitch-changing fixed plate 1 is fixedly connected with a mounting plate 4. The mounting plate 4 is used to install a motor 5 on the pitch-changing fixed plate 1. The upper surface of the mounting plate 4 is fixedly connected with a motor 5. The motor 5 is used to drive a rotating lead screw 6 to rotate. The output end of the motor 5 is movably connected with the rotating lead screw 6. The rotation of the rotating lead screw 6 drives a lifting block 11 to move up and down, thereby controlling the lifting of the pitch-changing guide groove plate 9. On one side of the pitch-changing fixed plate 1 away from the first linear guide rail 2, a second slider 7 is fixedly connected. The surface of the second slider 7 is slidably connected with a second linear guide rail 8. The second slider 7 and the second linear guide rail 8 are used to install the pitch-changing guide groove plate 9 on the pitch-changing fixed plate 1 and enable the pitch-changing guide groove plate 9 to slide up and down. The surface of the second linear guide rail 8 is fixedly connected with the pitch-changing guide groove plate 9. When the pitch-changing guide groove plate 9 moves up and down, a follower wheel 17 moves on the surface of a guide groove 10, causing a fixed block 15 connected to the follower wheel 17 to slide on the surface of a third linear guide rail 13, thereby realizing equidistant pitch change of a soldering iron head 19 on the fixed block 15. A guide groove 10 is formed on the surface of the pitch-changing guide groove plate 9. The guide groove 10 is used for the follower wheel 17 to move on its surface, so that the fixed block 15 connected to the follower wheel 17 slides on the surface of the third linear guide rail 13. A lifting block 11 is fixedly connected to the surface of the pitch-changing guide groove plate 9. The lifting block 11 is used to drive the pitch-changing guide groove plate 9 to move up and down. On one side of the pitch-changing fixed plate 1 away from the first linear guide rail 2, a linear guide rail fixing plate 12 is fixedly connected. The linear guide rail fixing plate 12 is used to install a third linear guide rail 13 and a third slider 14 on the pitch-changing fixed plate 1. The surface of the linear guide rail fixing plate 12 is fixedly connected with a third linear guide rail 13. The surface of the third linear guide rail 13 is slidably connected with a third slider 14. The third linear guide rail 13 and the third slider 14 are used to install a fixed block 15 on the linear guide rail fixing plate 12 and enable the fixed block 15 to slide left and right on the surface of the linear guide rail fixing plate 12. The surface of the third slider 14 is fixedly connected with a fixed block 15. The fixed block 15 is used to install a connecting block 18, a soldering iron head 19 and a solder feeding tube 20 and drive them to change pitch equidistantly. A connecting rod 16 is fixedly connected to the surface of the fixed block 15. The connecting rod 16 is used to connect the fixed block 15 and the follower wheel 17. One end of the connecting rod 16 away from the fixed block 15 is movably connected with a follower wheel 17. The follower wheel 17 is used to move on the surface of the guide groove 10, causing the fixed block 15 connected to the follower wheel 17 to slide on the surface of the third linear guide rail 13, thereby realizing equidistant pitch change of the soldering iron head 19 on the fixed block 15. A connecting block 18 is fixedly connected to the surface of the fixed block 15. The connecting block 18 is used to connect the fixed block 15 with the soldering iron head 19 and the solder feeding tube 20. The surface of the connecting block 18 is fixedly connected with a soldering iron head 19.The soldering iron tip 19 is used for soldering work. A solder feeding tube 20 is fixedly connected to the surface of the connecting block 18. The solder feeding tube 20 is used to drop solder balls onto the soldering surface during soldering work, thereby increasing the contact area and reliability of soldering. The motor 5, the soldering iron tip 19, and the solder feeding tube 20 are all existing products and are not the technical protection points of this application, so no further description will be made here.

[0024] Furthermore, the variable pitch fixing plate 1 is in the shape of a plate. The variable pitch fixing plate 1 is slidably connected through the first linear guide rail 2 and the first slider 3. The variable pitch fixing plate 1 is used to fix the variable pitch mechanism. The first linear guide rail 2 and the first slider 3 are used to install the wire pitch changing mechanism on the automatic wire bonding machine and enable it to slide up and down. The mounting plate 4 is used to mount the motor 5 on the variable pitch fixing plate 1.

[0025] Furthermore, the motor 5 is used to drive the rotating lead screw 6 to rotate. The rotating lead screw 6 passes through the mounting plate 4. The rotating lead screw 6 is rotationally connected to the motor 5 and the mounting plate 4. The rotation of the rotating lead screw 6 drives the lifting block 11 to move up and down, thereby controlling the lifting of the variable pitch guide plate 9. The second slider 7 and the second linear guide rail 8 are used to mount the variable pitch guide plate 9 on the variable pitch fixing plate 1 and enable the variable pitch guide plate 9 to slide up and down.

[0026] Furthermore, the variable pitch guide plate 9 is slidably connected to the variable pitch fixing plate 1 through the second slider 7 and the second linear guide rail 8. The variable pitch guide plate 9 moves up and down, causing the follower wheel 17 to move on the surface of the guide groove 10, so that the fixing block 15 connected to the follower wheel 17 slides on the surface of the third linear guide rail 13, thereby realizing an equal pitch change of the soldering iron tip 19 on the fixing block 15. The inclination angles of the four groups of guide grooves 10 are different. The guide grooves 10 are used for the follower wheel 17 to move on its surface, so that the fixing block 15 connected to the follower wheel 17 slides on the surface of the third linear guide rail 13.

[0027] Furthermore, the lifting block 11 is threadedly connected to the rotating lead screw 6. The lifting block 11 is used to drive the variable pitch guide plate 9 to move up and down. The variable pitch guide plate 9 is slidably connected to the second slider 7 through the rotating lead screw 6 and the lifting block 11. The linear guide rail fixing plate 12 is used to mount the third linear guide rail 13 and the third slider 14 on the variable pitch fixing plate 1. The third linear guide rail 13 and the third slider 14 are used to mount the fixing block 15 on the linear guide rail fixing plate 12 and enable the fixing block 15 to slide left and right on the surface of the linear guide rail fixing plate 12.

[0028] Furthermore, the fixing block 15 is slidably connected to the linear guide rail fixing plate 12 through the third linear guide rail 13 and the third slider 14. The fixing block 15 is used to mount the connecting block 18, the soldering iron tip 19, and the solder feeding tube 20 and drive them to change pitch equally. The connecting rod 16 is in the shape of a round rod. The connecting rod 16 is used to connect the fixing block 15 and the follower wheel 17.

[0029] Furthermore, the follower wheel 17 rotates on the surface of the guide groove 10 through the connecting rod 16. The follower wheel 17 is used to move on the surface of the guide groove 10, so that the fixed block 15 connected to the follower wheel 17 slides on the surface of the third linear guide rail 13, thereby realizing the equal-distance variable pitch of the soldering iron head 19 on the fixed block 15. The connecting block 18 is used to connect the fixed block 15 with the soldering iron head 19 and the solder feeding tube 20. The soldering iron head 19 and the solder feeding tube 20 are both inserted and connected to the connecting block 18. The soldering iron head 19 is used for welding work, and the solder feeding tube 20 is used to drip solder balls onto the welding surface during welding work, thereby increasing the contact area and reliability of welding.

[0030] Working principle: When variable pitch is required, the motor 5 operates to drive the rotating lead screw 6 to rotate, so that the lifting block 11 moves up and down along the rotating lead screw 6, thereby driving the variable pitch guide groove plate 9 to move up and down, causing the follower wheel 17 to move on the surface of the guide groove 10, so that the fixed block 15 connected to the follower wheel 17 slides on the surface of the third linear guide rail 13, thereby realizing the equal-distance variable pitch of the soldering iron head 19 on the fixed block 15. Furthermore, the welding process is simplified, the production efficiency is greatly improved, and the labor intensity of the operator is reduced.

[0031] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A wire bonding pitch-changing mechanism applicable to an automatic wire bonding machine, including a pitch-changing fixed plate (1), characterized in that: A first linear guide rail (2) is fixedly connected to the surface of the variable pitch fixed plate (1). A first slider (3) is slidably connected to the surface of the first linear guide rail (2). A mounting plate (4) is fixedly connected to the upper surface of the variable pitch fixed plate (1). A motor (5) is fixedly connected to the upper surface of the mounting plate (4). The output end of the motor (5) is movably connected to a rotating lead screw (6). A second slider (7) is fixedly connected to the side of the variable pitch fixed plate (1) away from the first linear guide rail (2). A second linear guide rail (8) is slidably connected to the surface of the second slider (7). A variable pitch guide groove plate (9) is fixedly connected to the surface of the second linear guide rail (8). A guide groove (10) is formed on the surface of the variable pitch guide groove plate (9). A lifting block (11) is fixedly connected to the surface of the variable pitch guide groove plate (9). A linear guide rail fixing plate (12) is fixedly connected to the side of the variable pitch fixed plate (1) away from the first linear guide rail (2). A third linear guide rail (13) is fixedly connected to the surface of the linear guide rail fixing plate (12). A third slider (14) is slidably connected to the surface of the third linear guide rail (13). A fixing block (15) is fixedly connected to the surface of the third slider (14). A connecting rod (16) is fixedly connected to the surface of the fixing block (15). A follower wheel (17) is movably connected to one end of the connecting rod (16) away from the fixing block (15). A connecting block (18) is fixedly connected to the surface of the fixing block (15). A soldering iron tip (19) is fixedly connected to the surface of the connecting block (18). A solder feeding tube (20) is fixedly connected to the surface of the connecting block (18).

2. The wire bonding pitch-changing mechanism for an automatic wire bonding machine according to claim 1, wherein: The variable pitch fixed plate (1) is in a plate shape and is slidably connected through the first linear guide rail (2) and the first slider (3).

3. The wire bonding pitch-changing mechanism applicable to an automatic wire bonder according to claim 1, characterized in that: The rotating lead screw (6) penetrates through the mounting plate (4) and is rotationally connected to the mounting plate (4) through the motor (5).

4. The wire bonding pitch changing mechanism for an automatic wire bonding machine according to claim 1, characterized in that: The variable pitch guide groove plate (9) is slidably connected to the variable pitch fixed plate (1) through the second slider (7) and the second linear guide rail (8), and the inclination angles of the four groups of guide grooves (10) are different.

5. The wire bonding pitch changing mechanism for an automatic wire bonding machine according to claim 1, characterized in that: The lifting block (11) is threadedly connected to the rotating lead screw (6), and the variable pitch guide groove plate (9) is slidably connected to the second slider (7) through the rotating lead screw (6) and the lifting block (11).

6. The wire bonding pitch changing mechanism for an automatic wire bonding machine according to claim 1, characterized in that: The fixing block (15) is slidably connected to the linear guide rail fixing plate (12) through the third linear guide rail (13) and the third slider (14), and the connecting rod (16) is in a round rod shape.

7. The wire bonding pitch changing mechanism for an automatic wire bonding machine according to claim 1, wherein: The follower wheel (17) rotates on the surface of the guide groove (10) through the connecting rod (16), and both the soldering iron tip (19) and the solder feeding tube (20) are inserted and connected to the connecting block (18).

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