Micro ball grid array (BGA) solder ball screening machine

Abstract

The micro ball grid array (BGA) solder ball screening machine comprises a box body, the front face of the box body is movably connected with a storage box, the two sides of the storage box are fixedly connected with triangular plates, the upper surface of the box body is provided with an opening, the inner wall of the opening is provided with a groove, the inner bottom wall of the groove is rotationally connected with a screw rod, and the screw rod is fixedly connected with the storage box. The bottom end of the screw rod is fixedly connected with a forward and reverse rotation motor, and the side face of the screw rod is in threaded connection with a movable sleeve. Through the storage box and the triangular plate, the storage box can conveniently collect materials in the box body, through the arrangement of the vibration machine, the movable box and the supporting plate, the vibration machine can conveniently drive the movable box to shake, and through the arrangement of the positive and negative rotation motor, the screw rod and the movable sleeve, the motor can conveniently drive the movable sleeve to ascend and descend through the screw rod. And then the movable sleeve drives the isolation box to ascend and descend, the isolation box isolates the tin balls with large diameters, the matched tin balls fall into the storage box, and therefore the tin ball screening machine has the effect of being convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of solder ball screening, in particular to a micro-ball BGA solder ball screening machine. Background Art

[0002] Solder balls, also known as BGA solder balls or BGA solder beads, are a type of connector used in electronic packaging technology. They are mainly used in BGA (Ball Grid Array) packaging structures to replace the pins in IC component packaging structures to meet electrical interconnection and mechanical connection requirements.

[0003] During the production process, solder balls will undergo a series of strict quality inspections, including ball diameter, roundness, brightness, oxidation resistance, appearance and alloy composition inspection standards. Its advantages include high roundness, single ball diameter surface defect-free, high purity and high precision component control, and no static electricity, high yield production, etc.

[0004] After production, solder balls are classified by diameter so that they can be used for different chips. However, existing screening machines are large and inconvenient to operate. In order to increase the convenience of operation, we have designed a micro-ball BGA solder ball screening machine to increase its usability. Utility Model Content

[0005] The utility model aims to provide a micro-ball BGA solder ball screening machine to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a micro-ball BGA solder ball screening machine, comprising a box body, a storage box is movably connected to the front of the box body, and triangular plates are fixedly connected to both sides of the storage box, and an opening is opened on the upper surface of the box body, and a groove is opened on the inner wall of the opening, a screw is rotatably connected to the inner bottom wall of the groove, and a forward and reverse motor is fixedly connected to the bottom end of the screw, a movable sleeve is threadedly connected to the side of the screw, a T-bar is fixedly connected to the side of the movable sleeve, an isolation box is movably connected to the side of the T-bar, a movable box is overlapped on the lower surface of the isolation box, and screening holes of the same diameter are opened on the lower surfaces of the movable box and the isolation box, a vibrator is arranged on the side of the movable box, a convex disk is fixedly connected to the lower surface of the movable box, a telescopic rod is fixedly connected to the side of the convex disk, and a support plate is fixedly connected to the end of the telescopic rod away from the convex disk.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Preferably, a storage groove matched with the storage box is provided on the front of the box, and the open inner bottom wall of the upper surface of the box is connected to the inner top wall of the storage groove, and the inner side walls of the storage groove are provided with triangular grooves matched with the triangular plate. By arranging the storage box and the triangular plate, the storage box can be stably connected with the box, which is convenient for the subsequent storage of solder ball materials.

[0009] Preferably, both side edges of the isolation box are provided with convex grooves that can move horizontally with the T-bar, and the movable sleeve has the same thickness as the isolation box. By providing the movable sleeve and the T-bar, it is convenient to increase the space for the isolation box to shake. At the same time, the moving distance of the isolation box is limited, and it is also convenient for the subsequent movable sleeve to drive the isolation box to rise and fall through the T-bar, thereby facilitating the removal of materials in the isolation box.

[0010] Preferably, there are two support plates, and the two support plates are respectively fixedly connected to the inner two sides of the opening. A limiting groove is provided on the upper surface of the support plate to facilitate the lateral movement of the convex plate, and the side surface of the telescopic rod is fixedly connected to the inner side wall of the limiting groove. By setting the support plate, it is convenient for the movable box to move laterally on the support plate through the convex plate at the bottom. At the same time, it is also convenient for the support plate to support the movable box.

[0011] Preferably, a return spring is provided inside the telescopic rod, and the telescopic end of the telescopic rod is fixedly connected to a push plate, and the side of the push plate is fixedly connected to the side of the convex plate. By providing the telescopic rod, the moving distance of the convex plate can be buffered to prevent the moving convex plate from causing damage to the inside of the support plate.

[0012] Preferably, a handle is provided on the front of the storage box, and the inner wall and the bottom wall of the storage box are provided with a rubber layer. A magnet sheet is embedded in the inner bottom wall of the storage box. The storage box is used to collect the solder balls dropped in the box. At the same time, a rubber layer is provided on the inner wall of the storage box to protect the solder balls dropped at a close distance.

[0013] Preferably, a groove compatible with the vibrator is provided on the inner wall of the opening on the surface of the box body, and a rubber plate is provided at the vibrating end of the vibrator. By providing the vibrator, it is convenient to provide vibration force to the movable box and the isolation box, so that they have the ability to screen, which is convenient for screening the produced solder balls.

[0014] Beneficial Effects

[0015] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0016] The utility model uses the storage box and the triangular plate to facilitate the storage box to collect materials in the box body; by arranging the vibrator, the movable box and the support plate, the movable box can be driven to shake by the vibrator, and the convex plate on the surface of the support plate limits the movable distance of the movable box; by arranging the forward and reverse motor, the screw and the movable sleeve, the motor can drive the movable sleeve to rise and fall through the screw, and then the movable sleeve drives the isolation box to rise and fall, and the movable box drives the isolation box to shake, and the isolation box isolates solder balls with larger diameters, and solder balls that meet the requirements fall into the storage box, so that the solder ball screening machine has the effect of being easy to use and operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front section structure of the utility model;

[0018] Figure 2 This is a front view structural diagram of the activity box of the utility model;

[0019] Figure 3 for Figure 1 Enlarged structural diagram at A in the middle.

[0020] In the figure: 1. box body; 2. storage box; 3. triangle plate; 4. groove; 5. screw; 6. forward and reverse motor; 7. movable sleeve; 8. T-bar; 9. isolation box; 10. movable box; 11. screening hole; 12. vibrator; 13. convex plate; 14. telescopic rod; 15. support plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3 The utility model provides a technical solution: a micro-ball BGA solder ball screening machine, comprising a box body 1, a storage box 2 is movably connected to the front of the box body 1, a handle is arranged on the front of the storage box 2, and the inner wall and the bottom wall of the storage box 2 are both provided with a rubber layer, a magnet sheet is embedded in the inner bottom wall of the storage box 2, and the storage box 2 is used to collect the solder balls dropped from the box body 1, and at the same time, the rubber layer is arranged on the inner wall of the storage box 2, so that the solder balls dropped at a close distance can be protected.

[0023] Both sides of the storage box 2 are fixedly connected with a triangular plate 3, a storage groove matched with the storage box 2 is provided on the front of the box body 1, and the open inner bottom wall of the upper surface of the box body 1 is connected with the inner top wall of the storage groove, and the inner side walls of the storage groove are provided with triangular grooves matched with the triangular plate 3. By arranging the storage box 2 and the triangular plate 3, the storage box 2 can be stably connected with the box body 1, which is convenient for the subsequent storage of solder ball materials.

[0024] An opening is provided on the upper surface of the box body 1, and a groove 4 is provided on the inner wall of the opening. A screw rod 5 is rotatably connected to the inner bottom wall of the groove 4, and a forward and reverse motor 6 is fixedly connected to the bottom end of the screw rod 5. A movable sleeve 7 is threadedly connected to the side of the screw 5, and a T-bar 8 is fixedly connected to the side of the movable sleeve 7. An isolation box 9 is movably connected to the side of the T-bar 8. A screw 5 and a light rod are respectively provided on both sides of the isolation box 9. Convex grooves that can be laterally movable with the T-bar 8 are provided on the sides of the two side edges of the isolation box 9, and the movable sleeve 7 has the same thickness as the isolation box 9. By arranging the movable sleeve 7 and the T-bar 8, it is convenient to increase the space for the isolation box 9 to shake. At the same time, the moving distance of the isolation box 9 is limited, and it is also convenient for the subsequent movable sleeve 7 to drive the isolation box 9 to rise and fall through the T-bar 8, so as to facilitate the removal of materials in the isolation box 9.

[0025] Furthermore, since the isolation box 9 can be separated from the screw 5 by the movable sleeve 7, the isolation box 9 can be replaced as needed, and the isolation plates can be screened one by one according to actual needs, and the isolation plates can be quickly replaced without waiting for the time to dump the solder balls for screening, thereby increasing the efficiency of screening the solder balls.

[0026] The lower surface of the isolation box 9 is overlapped with the movable box 10, and the lower surfaces of the movable box 10 and the isolation box 9 are both provided with screening holes 11 of the same diameter. A vibrator 12 is arranged on the side of the movable box 10, and the inner wall of the opening on the surface of the box body 1 is provided with a groove adapted to the vibrator 12, and a rubber plate is arranged at the vibrating end of the vibrator 12. By setting the vibrator 12, it is convenient to provide vibration force to the movable box 10 and the isolation box 9, so that they have the ability to screen, and it is convenient to screen the produced solder balls.

[0027] A convex disc 13 is fixedly connected to the lower surface of the movable box 10, and a telescopic rod 14 is fixedly connected to the side of the convex disc 13. A return spring is arranged inside the telescopic rod 14, and a push plate is fixedly connected to the telescopic end of the telescopic rod 14. The side of the push plate is fixedly connected to the side of the convex disc 13. By arranging the telescopic rod 14, it is convenient to buffer the moving distance of the convex disc 13 to prevent the moving convex disc 13 from causing damage to the inside of the support plate 15.

[0028] One end of the telescopic rod 14 away from the convex disc 13 is fixedly connected to a support plate 15, there are two support plates 15, and the two support plates 15 are respectively fixedly connected to the inner two sides of the opening, and the upper surface of the support plate 15 is provided with a limiting groove for lateral movement of the convex disc 13, and the side of the telescopic rod 14 is fixedly connected to the inner side wall of the limiting groove. By providing the support plate 15, it is convenient for the movable box 10 to move laterally on the support plate 15 through the convex disc 13 at the bottom, and at the same time, it is also convenient for the support plate 15 to support the movable box 10.

[0029] In this embodiment, the storage box and the triangular plate 3 are provided, so that the storage box can collect the materials in the box body 1. The vibrator 12, the movable box 10 and the support plate 15 are provided, so that the movable box 10 can be driven to shake by the vibrator 12, and the convex plate 13 on the surface of the support plate 15 limits the movable distance of the movable box 10. The forward and reverse motors 6, the screw 5 and the movable sleeve 7 are provided, so that the motor can drive the movable sleeve 7 to rise and fall through the screw 5, and then the movable sleeve 7 drives the isolation box 9 to rise and fall, and the movable box 10 drives the isolation box 9 to shake, and the isolation box 9 isolates the solder balls with larger diameters, and the solder balls that meet the requirements fall into the storage box 2, so that the solder ball screening machine is easy to use.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A micro ball BGA solder ball screening machine, characterized by: The invention comprises a box body (1), the front of the box body (1) is movably connected to a storage box (2), and both sides of the storage box (2) are fixedly connected to triangular plates (3), and the upper surface of the box body (1) is provided with an opening, and the inner wall of the opening is provided with a groove (4), the inner bottom wall of the groove (4) is rotatably connected to a screw rod (5), and the bottom end of the screw rod (5) is fixedly connected to a forward and reverse motor (6), the side of the screw rod (5) is threadedly connected to a movable sleeve (7), and the side of the movable sleeve (7) is fixedly connected to a T-shaped rod (8), and the T-shaped rod ( The side of the movable box (8) is movably connected to an isolation box (9), the lower surface of the isolation box (9) is overlapped with a movable box (10), and the lower surfaces of the movable box (10) and the isolation box (9) are both provided with screening holes (11) of the same diameter, the side of the movable box (10) is provided with a vibrator (12), the lower surface of the movable box (10) is fixedly connected to a convex plate (13), the side of the convex plate (13) is fixedly connected to a telescopic rod (14), and the end of the telescopic rod (14) away from the convex plate (13) is fixedly connected to a support plate (15).

2. A micro-ball BGA solder ball screening machine according to claim 1, characterized in that: The front of the box body (1) is provided with a storage groove matched with the storage box (2), and the open inner bottom wall of the upper surface of the box body (1) is connected with the inner top wall of the storage groove, and the inner side walls of the storage groove are both provided with triangular grooves matched with the triangular plate (3).

3. The micro-ball BGA solder ball screening machine according to claim 1, characterized in that: Both side edges of the isolation box (9) are provided with convex grooves for transverse movement with the T-shaped rod (8), and the movable sleeve (7) and the isolation box (9) have the same thickness.

4. The micro-ball BGA solder ball screening machine according to claim 1, characterized in that: The number of the support plates (15) is two, and the two support plates (15) are respectively fixedly connected to the inner two sides of the opening; the upper surface of the support plate (15) is provided with a limiting groove for facilitating the lateral movement of the convex plate (13); and the side surface of the telescopic rod (14) is fixedly connected to the inner side wall of the limiting groove.

5. The micro-ball BGA solder ball screening machine according to claim 1, characterized in that: A return spring is arranged inside the telescopic rod (14), and a push plate is fixedly connected to the telescopic end of the telescopic rod (14), and a side surface of the push plate is fixedly connected to a side surface of the convex plate (13).

6. The micro-ball BGA solder ball screening machine according to claim 1, characterized in that: A handle is provided on the front of the storage box (2), and the inner wall and the bottom wall of the storage box (2) are both provided with a rubber layer, and a magnet sheet is embedded in the inner bottom wall of the storage box (2).

7. The micro-ball BGA solder ball screening machine according to claim 1, characterized in that: A groove matching the vibrator (12) is provided on the inner wall of the opening on the surface of the box body (1), and a rubber plate is provided at the vibrating end of the vibrator (12).

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