Pay-off device of gold wire ball bonding machine
By designing a hollow wire laying seat and wire laying device, the problem of inaccurate wire laying structure control of the existing gold skeleton welding machine is solved, and the smoothness of gold wire wiring and precise control of the size of welded gold balls is achieved.
Patent Information
- Application Number
- CN202421412516.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-06-20
AI Technical Summary
The existing gold skein ball welding machines have inaccurate control of the wire laying structure, resulting in inaccurate control of the size of the welded gold ball, and the structure is complicated and the gold wire is not smooth.
A hollow wire release seat is designed, and the gold wire is sent directly through the hollow wire release seat, simplifying the wire delivery structure and precise control of the wire release length is achieved through the wire release device.
The smoothness of gold wire wiring and precise control of the length of wire laying are achieved, and the control of the size of the welding gold ball is also more accurate.
Smart Images
Figure CN222806336U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gold wire ball welding machines, in particular to a wire-releasing device of a gold wire ball welding machine. Background Art
[0002] When the gold wire of the gold wire ball welding machine is unwinding, a unwinding structure needs to be set to control the unwinding of the gold wire, and the unwinding length is controlled to achieve control of the size of the welded gold ball. In the prior art, the control of the unwinding structure is to drive the unwinding swing rod to oscillate through a magnetic design, and the length of the unwinding is determined by the amplitude of the oscillation. The defects of this design are:
[0003] The amplitude of oscillation is not accurate, that is, the control of the length of the wire is not accurate, that is, the control of the size of the welding gold ball is not accurate, and there are problems such as complicated structure and poor routing of the gold wire. Utility Model Content
[0004] In order to solve the deficiencies in the prior art, the utility model provides a wire pay-off device for a gold wire ball welding machine. The wire pay-off device of the gold wire ball welding machine is designed with a hollow wire pay-off seat, and the gold wire is directly fed out through the hollow wire pay-off seat, thereby simplifying the wire feeding structure and making the gold wire routing smoother. At the same time, the wire pay-off length can be controlled by the wire pay-off device, so the wire pay-off length is more accurate, and the size of the welded gold ball can be controlled more accurately.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] The utility model provides a wire-releasing device for a gold wire ball welding machine, comprising a mounting plate, a wire-releasing seat is arranged on the mounting plate, a wire ring is arranged at one end of the wire-releasing seat away from the mounting plate, and the inside of the wire-releasing seat is hollow and communicated with the inside of the wire ring;
[0007] A convergence tube is arranged on the other side of the mounting plate relative to the pay-off seat, the inner diameter of the convergence tube gradually decreases from one end to the other end, and the end of the convergence tube with a larger inner diameter is connected to the mounting plate and communicated with the hollow part of the pay-off seat;
[0008] A positioning tube and a wire releaser are arranged in sequence on the wire release path of the gold wire, and the wire releaser comprises a push rod and a wire pushing seat.
[0009] The utility model discloses a wire-paying device for a gold wire ball welding machine. The gold wire goes around a wire ring from outside a wire-paying seat and directly enters the inside of the wire-paying seat. The movement path is converged by a convergence tube, and the gold wire conveying path is positioned by a positioning tube. The gold wire feeding is smooth and the positioning is stable. When the push rod of the wire-paying device pushes the wire-pushing seat, the wire-pushing seat drives the gold wire to move laterally, and generates a lateral displacement relative to its original position. The changed length of the gold wire brought about by this distance is the wire-paying length. Since the driving distance of the push rod is determined, the distance of the lateral movement of the gold wire is determined, and the changed length of the gold wire, that is, the wire-paying length is determined, and the size of the welded gold ball is determined.
[0010] The wire-paying device of the gold wire ball welding machine of the utility model is designed with a hollow wire-paying seat, and the gold wire is directly fed out through the hollow wire-paying seat, which simplifies the wire-feeding structure and makes the gold wire routing smoother. At the same time, the wire-paying length can be controlled through the wire-paying device, so the wire-paying length is more accurate, and the size of the welded gold ball can be controlled more accurately.
[0011] In a further technical solution, the top surface of the wire pushing seat is concave in shape.
[0012] The top surface of the wire pushing seat is concave, which has a certain limiting effect on the gold wire, thereby preventing the gold wire from generating uncertain displacement during the wire pushing process and affecting the accuracy of the wire pay-off length.
[0013] In a further technical solution, the top surface of the wire pushing seat is a concave arc surface.
[0014] The concave arc surface can not only have a certain limiting effect on the gold wire, but also has a certain protective effect on the gold wire.
[0015] In a further technical solution, a baffle is also included which is arranged on the moving path of the wire pushing seat.
[0016] The setting of the baffle further improves the accuracy of the wire pushing seat in pushing the gold wire to change its length, and further ensures the certainty of the size of the welded gold ball.
[0017] In a further technical solution, a guide rod is passed through the baffle, and a stopper is arranged on the guide rod.
[0018] The setting of the guide rod and the stopper enables the baffle to slide along the guide rod when being pushed by the wire pushing seat, and finally the stopper blocks the baffle and the wire pushing seat. The actual stroke of the wire pushing seat is determined by the position of the stopper. This method avoids collision between the baffle and the wire pushing seat.
[0019] In a further technical solution, a spring is arranged on the guide rod between the stop block and the baffle.
[0020] The role of the spring is to avoid or reduce the rigid collision between the wire pushing seat and the baffle plate, and between the baffle plate and the stop block when the wire pushing seat moves, thereby extending the service life.
[0021] In a further technical solution, the stopper is movably sleeved on the guide rod and also includes a fastening mechanism for fastening the stopper.
[0022] The stopper is movable, and by fastening the stopper through a fastening mechanism, the movement stroke of the push rod can be adjusted, that is, the size of the welding gold ball can be adjusted.
[0023] In a further technical solution, the fastening mechanism includes a threaded sleeve fixedly connected to the stopper and sleeved on the guide rod, the threaded sleeve is a conical sleeve and a notch is opened on its surface along its axial direction, and a fastening nut is sleeved on the threaded sleeve.
[0024] The tapered threaded sleeve allows the threaded sleeve to contact the guide rod when the fastening nut is tightened to achieve the fastening of the stopper. When the threaded sleeve is loosened, the guide rod is separated from the threaded sleeve to adjust the position of the stopper, which is easy to operate.
[0025] The beneficial effects are:
[0026] 1. The wire-paying device of the gold wire ball welding machine of the utility model is designed with a hollow wire-paying seat, and the gold wire is directly fed out through the hollow wire-paying seat, which simplifies the wire-feeding structure and makes the gold wire routing smoother. At the same time, the wire-paying length is controlled by the wire-paying device, and the wire-paying length is more accurate, so that the size of the welded gold ball can be controlled more accurately.
[0027] 2. The top surface of the wire pushing seat is concave, which has a certain limiting effect on the gold wire, avoiding the gold wire from generating uncertain displacement during the wire pushing process, which affects the accuracy of the wire pay-off length.
[0028] 3. The concave arc surface can not only have a certain limiting effect on the gold wire, but also has a certain protective effect on the gold wire.
[0029] 4. The setting of the baffle further improves the accuracy of the wire pusher in pushing the gold wire to change its length, and further ensures the certainty of the size of the welded gold ball.
[0030] 5. The setting of the guide rod and the stopper makes the baffle slide along the guide rod when being pushed by the wire pushing seat, and finally the stopper blocks the baffle and the wire pushing seat. The actual stroke of the wire pushing seat is determined by the position of the stopper. This method avoids the collision between the baffle and the wire pushing seat.
[0031] 6. The role of the spring is to avoid or reduce the rigid collision between the wire push seat and the baffle, and between the baffle and the block when the wire push seat is in motion, which prolongs the service life.
[0032] 7. The stopper is movable. By fastening the stopper through a fastening mechanism, the movement stroke of the push rod can be adjusted, that is, the size of the welding gold ball can be adjusted.
[0033] 8. The tapered threaded sleeve allows the threaded sleeve to contact the guide rod when the fastening nut is tightened to achieve the fastening of the block. When the threaded sleeve is loosened, it is separated from the guide rod and the position of the block can be adjusted, which is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS
[0034] Figure 1 This is a schematic diagram of the overall structure of a wire-releasing device of a gold wire ball welding machine in one embodiment of the utility model;
[0035] Figure 2 It is a structural schematic diagram of a wire pay-off device of a gold wire ball bonding machine according to another embodiment of the utility model.
[0036] 10. Mounting plate; 20. Pay-off seat; 21. Wire ring; 30. Collection tube; 40. Positioning tube; 50. Pay-off device; 51. Push rod; 52. Wire push seat; 53. Baffle; 54. Guide rod; 55. Block; 56. Spring. DETAILED DESCRIPTION
[0037] The utility model is further described below in conjunction with the accompanying drawings:
[0038] Example:
[0039] A wire release device for a gold wire ball welding machine, such as Figure 1 As shown, it includes a mounting plate 10, on which a wire pay-off seat 20 is disposed, and a wire ring 21 is disposed at one end of the wire pay-off seat 20 away from the mounting plate 10, and the interior of the wire pay-off seat 20 is hollow and communicated with the interior of the wire ring 21;
[0040] In this embodiment, the mounting plate 10 itself is installed through a base, a threaded hole is provided on the mounting plate 10, one end of the pay-off seat 20 is inserted into the threaded hole and its own installation is realized through the thread, the pay-off seat 20 is tubular in shape, the inner ring surface of the wire ring 21 is an arc surface, and the inner ring surface of the wire ring 21 smoothly transitions with the inner wall of the pay-off seat 20, thereby ensuring the smooth transportation of the gold wire;
[0041] A converging tube 30 is disposed on the other side of the mounting plate 10 relative to the pay-off seat 20. The inner diameter of the converging tube 30 gradually decreases from one end to the other end. The end of the converging tube 30 with a larger inner diameter is connected to the mounting plate 10 and communicates with the hollow part of the pay-off seat 20.
[0042] The arrangement of the bundle tube 30 gradually determines the conveying path of the gold wire. In this embodiment, the end of the bundle tube 30 with a larger inner diameter is connected to an annular connecting plate, and the connecting plate is connected to the mounting plate 10 by driving screws therein.
[0043] A positioning tube 40 and a wire release device 50 are sequentially arranged on the wire release path of the gold wire. The wire release device 50 includes a push rod 51 and a wire pushing seat 52.
[0044] The positioning tube 40 is a tube with a diameter matching that of the gold wire, and is fixed on the conveying path of the gold wire. Due to its small inner diameter, the conveying path of the gold wire is determined when the gold wire passes through it.
[0045] It can be understood that the gold wire passing through the wire unwinder 50 also needs to pass through structures such as a wire clamping piece and a splitting knife, and the subsequent structural settings are prior art and will not be repeated here.
[0046] It is understandable that, in this embodiment, the base of the mounting plate 10, the positioning tube 40 and the wire release 50 can be installed and fixed by finding a suitable position on the gold wire ball welding machine, or they can be installed and fixed as a whole through a mounting substrate. Then the mounting substrate is fixed to the gold wire ball welding machine to achieve the installation of the above structure.
[0047] The utility model discloses a wire-paying device for a gold wire ball welding machine. The gold wire goes around the wire ring 21 from the outside of the wire-paying seat 20 and directly enters the inside of the wire-paying seat 20. The movement path is converged by the convergence tube 30. The gold wire conveying path is positioned by the positioning tube 40. The gold wire is smoothly fed and stably positioned. When the push rod 51 of the wire-paying device 50 pushes the wire-pushing seat 52, the wire-pushing seat 52 drives the gold wire to move laterally, and generates a lateral displacement relative to its original position. The change in length of the gold wire brought about by this distance is the wire-paying length. Since the driving distance of the push rod 51 is determined, the distance of the lateral movement of the gold wire is determined, and the change in length of the gold wire, that is, the wire-paying length is determined, and the size of the welded gold ball is determined.
[0048] The wire-paying device of the gold wire ball welding machine of the utility model is designed with a hollow wire-paying seat 20, and the gold wire is directly fed out through the hollow wire-paying seat 20, which simplifies the wire feeding structure and makes the gold wire routing smoother. At the same time, the wire-paying length is controlled by the wire-paying device 50, so the wire-paying length is more accurate and the size of the welded gold ball can be controlled more accurately.
[0049] In another embodiment, if Figure 2 As shown, the top surface of the wire pushing seat 52 is concave in shape.
[0050] The top surface of the wire pushing seat 52 is concave, which has a certain limiting effect on the gold wire, thereby preventing the gold wire from generating uncertain displacement during the wire pushing process, thereby affecting the accuracy of the wire pay-off length.
[0051] In another embodiment, if Figure 2 As shown, the top surface of the wire pushing seat 52 is a concave arc surface.
[0052] The concave arc surface can not only have a certain limiting effect on the gold wire, but also has a certain protective effect on the gold wire.
[0053] In another embodiment, if Figure 2 As shown, a baffle 53 is also included which is arranged on the moving path of the wire pushing seat 52.
[0054] The setting of the baffle 53 further improves the accuracy of the length change of the gold wire pushed by the wire pushing seat 52, and further ensures the certainty of the size of the welded gold ball.
[0055] In another embodiment, if Figure 2 As shown, a guide rod 54 is passed through the baffle 53 , and a stopper 55 is provided on the guide rod 54 .
[0056] The setting of the guide rod 54 and the stopper 55 allows the baffle 53 to slide along the guide rod 54 when being pushed by the wire pushing seat 52, and finally the stopper 55 blocks the baffle 53 and the wire pushing seat 52. The actual stroke of the wire pushing seat 52 is determined by the position of the stopper 55. This method avoids collision between the baffle 53 and the wire pushing seat 52.
[0057] In this embodiment, there is no direct collision between the baffle plate 53 and the wire pushing seat 52 , and the direct collision occurs between the baffle plate 53 and the stopper 55 .
[0058] In another embodiment, if Figure 2 As shown, a spring 56 is provided on the guide rod 54 between the stopper 55 and the baffle plate 53 .
[0059] The spring 56 prevents or reduces the rigid collision between the wire pushing seat 52 and the baffle 53 and between the baffle 53 and the stopper 55 when the wire pushing seat 52 moves, thereby extending the service life.
[0060] When the wire pushing seat 52 pushes the gold wire to move, the wire pushing seat 52 first contacts the baffle 53. At this time, since the baffle 53 moves synchronously, there is no rigid collision between the baffle 53 and the wire pushing seat 52. The baffle 53 is pushed to move by the wire pushing seat 52. During the movement of the baffle 53, the compression spring 56 is compressed, that is, a reaction force is generated on the movement of the baffle 53. The longer the distance the baffle 53 moves, the greater the reaction force, until the reaction force of the spring 56 is equal to the thrust of the wire pushing seat 52. At this time, the baffle 53 stops, so there is no rigid collision between the baffle 53 and the block 55.
[0061] In another embodiment, if Figure 2 As shown, the stopper 55 is movably sleeved on the guide rod 54 , and also includes a fastening mechanism for fastening the stopper 55 .
[0062] The stopper 55 is movable, and by fastening the stopper 55 through a fastening mechanism, the movement stroke of the push rod 51 can be adjusted, that is, the size of the welding gold ball can be adjusted.
[0063] In another embodiment, if Figure 2 As shown, the fastening mechanism includes a threaded sleeve fixedly connected to the stopper 55 and sleeved on the guide rod 54. The threaded sleeve is a conical sleeve and a notch is opened on its surface along its axial direction. A fastening nut is sleeved on the threaded sleeve.
[0064] The tapered threaded sleeve allows the threaded sleeve to contact the guide rod 54 when the fastening nut is tightened to achieve the fastening of the stopper 55. When the threaded sleeve is loosened, the guide rod 54 is separated to adjust the position of the stopper 55, which is easy to operate.
[0065] In another embodiment, the guide rod 54 is marked with a scale, and the scale corresponds to the stop position of the baffle 53 and the size of the welding gold ball. The position of the stop block 55 can be easily determined by the scale.
[0066] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.
Claims
1. A wire release device for a gold wire ball bonding machine, characterized in that: It comprises a mounting plate, on which a wire pay-off seat is arranged, and a wire ring is arranged at one end of the wire pay-off seat away from the mounting plate, and the inside of the wire pay-off seat is hollow and communicated with the inside of the wire ring; A convergence tube is arranged on the other side of the mounting plate relative to the pay-off seat, the inner diameter of the convergence tube gradually decreases from one end to the other end, and the end of the convergence tube with a larger inner diameter is connected to the mounting plate and communicated with the hollow part of the pay-off seat; A positioning tube and a wire releaser are arranged in sequence on the wire release path of the gold wire, and the wire releaser comprises a push rod and a wire pushing seat.
2. The wire release device of the gold wire ball bonding machine according to claim 1, characterized in that: The top surface of the wire pushing seat is in a concave shape.
3. The wire release device of the gold wire ball bonding machine according to claim 2, characterized in that: The top surface of the wire pushing seat is a concave arc surface.
4. The wire release device of the gold wire ball bonding machine according to claim 1, characterized in that: It also includes a baffle plate arranged on the moving path of the wire pushing seat.
5. The wire release device of the gold wire ball bonding machine according to claim 4, characterized in that: A guide rod is passed through the baffle, and a stopper is arranged on the guide rod.
6. The wire release device of the gold wire ball bonding machine according to claim 5, characterized in that: A spring is arranged on the guide rod between the stop block and the baffle plate.
7. The wire release device of the gold wire ball bonding machine according to claim 6, characterized in that: The stopper is movably sleeved on the guide rod and also includes a fastening mechanism for fastening the stopper.
8. The wire-releasing device of the gold wire ball bonding machine according to claim 7, characterized in that: The fastening mechanism comprises a threaded sleeve fixedly connected to the stopper and sleeved on the guide rod. The threaded sleeve is a conical sleeve with a notch opened on its surface along its axial direction. A fastening nut is sleeved on the threaded sleeve.