Blanking device of multi-terminal lead frame

Abstract

The utility model relates to the technical field of blanking devices, and discloses a blanking device of a multi-terminal lead frame, which solves the problem that the processing continuity is influenced because the existing multi-terminal lead frame cannot be quickly blanked after being stamped or etched and formed, and comprises a working table, supporting legs are fixedly arranged at four corners of the bottom of the working table, and the supporting legs are fixedly arranged on the working table. A containing groove is formed in one side of the top of the workbench, a machining table is fixedly installed on the other side of the top of the workbench, a vacuum suction cup is arranged in the middle of the upper portion of the workbench, a driving motor is fixedly installed in the middle of the bottom in the workbench, a limiting strip is arranged on one side of the upper portion of the workbench, and connecting rods are fixedly installed at the bottoms of the two ends of the limiting strip. The bottoms of the two connecting rods are fixedly connected with the top of the workbench, and a transmission assembly is arranged at the output end of the driving motor. The multi-terminal lead frame can be quickly blanked after being formed by stamping or etching, so that the machining continuity is ensured, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of feeding devices, specifically a feeding device for a multi-terminal lead frame. Background Technology

[0002] Multi-terminal lead frames are a key component widely used in electronic packaging. They are primarily used to connect the contact points of the internal chip of a semiconductor integrated circuit to external wires. A multi-terminal lead frame is a frame made of thin sheet metal (such as copper alloy) containing multiple terminals, each used to connect the internal circuitry of the chip to external circuitry. These terminals are typically electrically connected to the leads inside the chip via bonding materials (such as gold, aluminum, or copper wires) to form an electrical circuit. A multi-terminal lead frame mainly consists of chip pads and pins. The chip pads are used to fix the chip, while the pins are used to connect to external circuitry. The multi-terminal lead frame unloading device is a specially designed device for handling the unloading process of multi-terminal lead frames. Existing multi-terminal lead frames cannot be quickly unloaded after stamping or etching, which affects the continuity of processing and reduces work efficiency. Utility Model Content

[0003] In view of the above situation and to overcome the defects of the prior art, this utility model provides a cutting device for a multi-terminal lead frame, which effectively solves the problem that the existing multi-terminal lead frame cannot be cut quickly after stamping or etching, thus affecting the continuity of processing.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a feeding device for a multi-terminal lead frame, comprising a workbench, with support legs fixedly installed at the four corners of the bottom of the workbench, a placement groove opened on one side of the top of the workbench, a processing table fixedly installed on the other side of the top of the workbench, a vacuum suction cup provided in the middle of the top of the workbench, a drive motor fixedly installed in the middle of the bottom of the workbench, a limiting strip provided on one side of the top of the workbench, connecting rods fixedly installed at the bottom of both ends of the limiting strip, the bottom of the two connecting rods being fixedly connected to the top of the workbench, a transmission component provided at the output end of the drive motor, the transmission component being connected to the vacuum suction cup, and when the drive motor is running, the power is output to the vacuum suction cup through the transmission component, causing the vacuum suction cup to move and feed the material.

[0005] Preferably, the transmission assembly includes a turntable, which is fixedly installed at the output end of the drive motor. A connecting ring is fixedly installed on the lower side of the turntable, and a limiting slip ring is fixedly installed at the bottom of the connecting ring. An annular groove is provided on the inner bottom of the worktable, and the limiting slip ring is slidably installed inside the annular groove.

[0006] Preferably, a transmission pin is rotatably mounted on the upper side of the turntable, and a moving strip is sleeved on the surface of the transmission pin. Limiting sliders are fixedly mounted at both ends of the moving strip. Limiting grooves are opened on both sides of the inner wall of the worktable. Two limiting sliders are slidably mounted inside the two limiting grooves respectively. A support rod is fixedly mounted at one end of the top of the moving strip. The top of the support rod extends to the upper part of the worktable and is fixedly mounted on an upper fixing plate. A sliding rod is fixedly mounted on the lower side of the upper fixing plate. The bottom of the sliding rod is fixedly connected to the support rod through the lower fixing plate.

[0007] Preferably, a spring is fitted on the surface of the slide rod, and a sliding sleeve is fitted on the upper end of the slide rod surface. The two ends of the spring are fixedly connected to the sliding sleeve and the lower fixing plate, respectively. One side of the sliding sleeve is fixedly connected to the vacuum suction cup through a support arm. A rotating shaft is rotatably installed on the top of the support arm through a positioning seat, and the surface of the rotating shaft is in close contact with the limiting strip.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: After the lead frame is processed from the processing table, the operator starts the drive motor to drive the turntable to rotate. The turntable drives the limiting slip ring to slide along the inside of the annular slide groove through the connecting ring, which improves the stability of the turntable when rotating. When the turntable rotates, it drives the moving bar to move through the transmission pin. When the moving bar moves, it drives the two limiting sliders to slide inside the two limiting slide grooves, which increases the stability of the moving bar when moving. At the same time, the moving bar drives the support arm to move through the support rod. When the support arm moves, it drives the vacuum suction cup to move to one side of the processing table.

[0009] During the movement of the support arm, the rotating shaft slides along the limiting strip. The compression of the limiting strip causes the support arm to move downwards. As the support arm moves downwards, the sliding sleeve moves downwards along the surface of the sliding rod, simultaneously compressing the spring. This ensures the stability of the support arm's movement while providing an elastic restoring effect. The downward movement of the support arm also causes the vacuum suction cup to move downwards and approach the lead frame, holding it in place. When the drive motor drives the turntable to rotate continuously, it causes the support arm to move towards the side closer to the placement slot. With the cooperation of the limiting strip, the support arm causes the vacuum suction cup to move downwards and approach the placement slot, simultaneously placing the lead frame inside the placement slot to complete the unloading process. This allows the multi-terminal lead frame to be unloaded quickly after stamping or etching, ensuring the continuity of processing and improving work efficiency. Attached Figure Description

[0010] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0011] In the attached diagram:

[0012] Figure 1 This is a schematic diagram of the feeding device structure for the multi-terminal lead frame of this utility model. Figure 1 ;

[0013] Figure 2 This is a schematic diagram of the feeding device structure for the multi-terminal lead frame of this utility model. Figure 2 ;

[0014] Figure 3 This is a schematic diagram of the feeding device structure for the multi-terminal lead frame of this utility model. Figure 3 ;

[0015] Figure 4 This is a schematic diagram of the internal structure of the workbench of this utility model. Figure 1 ;

[0016] Figure 5 This is a schematic diagram of the internal structure of the workbench of this utility model. Figure 2 ;

[0017] In the diagram: 1. Workbench; 2. Placement slot; 3. Machining table; 4. Support leg; 5. Vacuum suction cup; 6. Drive motor; 7. Limiting strip; 8. Connecting rod; 9. Turntable; 10. Connecting ring; 11. Limiting slip ring; 12. Annular slide groove; 13. Transmission pin; 14. Moving strip; 15. Limiting slider; 16. Limiting slide groove; 17. Support rod; 18. Upper fixed plate; 19. Slide rod; 20. Slide sleeve; 21. Spring; 22. Lower fixed plate; 23. Positioning seat; 24. Rotating shaft; 25. Support arm. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] Depend on Figures 1 to 5 The present invention includes a workbench 1, with support legs 4 fixedly installed at the four corners of the bottom of the workbench 1. A placement groove 2 is provided on one side of the top of the workbench 1, and a processing table 3 is fixedly installed on the other side of the top of the workbench 1. A vacuum suction cup 5 is provided in the middle of the top of the workbench 1. A drive motor 6 is fixedly installed in the middle of the bottom of the workbench 1. A limiting strip 7 is provided on one side of the top of the workbench 1. Connecting rods 8 are fixedly installed at the bottom of both ends of the limiting strip 7. The bottom of the two connecting rods 8 are fixedly connected to the top of the workbench 1. A transmission component is provided at the output end of the drive motor 6. The transmission component is connected to the vacuum suction cup 5. When the drive motor 6 is running, it outputs power to the vacuum suction cup 5 through the transmission component, so that the vacuum suction cup 5 moves to unload materials.

[0020] After the lead frame is processed on the processing table 3, the operator starts the drive motor 6 to drive the transmission component. When the transmission component is running, it moves the vacuum chuck 5 to one side of the processing table 3. With the cooperation of the limiting strip 7, the vacuum chuck 5 moves down close to the lead frame and picks it up. As the drive motor 6 continues to drive the transmission component, the transmission component will move the vacuum chuck 5 to the side close to the placement groove 2. With the cooperation of the limiting strip 7, the vacuum chuck 5 will move down close to the placement groove 2, and at the same time, the lead frame will be placed inside the placement groove 2 to complete the unloading. This allows the multi-terminal lead frame to be unloaded quickly after stamping or etching, thereby ensuring the continuity of processing and improving work efficiency.

[0021] The transmission assembly includes a turntable 9, which is fixedly installed at the output end of the drive motor 6. A connecting ring 10 is fixedly installed on the lower side of the turntable 9, and a limiting slip ring 11 is fixedly installed at the bottom of the connecting ring 10. An annular groove 12 is provided on the inner bottom of the worktable 1, and the limiting slip ring 11 is slidably installed inside the annular groove 12.

[0022] The operator starts the drive motor 6 to drive the turntable 9 to rotate. The turntable 9 drives the limit slip ring 11 to slide along the inside of the annular slide groove 12 through the connecting ring 10, which improves the stability of the turntable 9 when it rotates.

[0023] A transmission pin 13 is rotatably mounted on the upper side of the turntable 9. A moving strip 14 is sleeved on the surface of the transmission pin 13. Limiting sliders 15 are fixedly mounted at both ends of the moving strip 14. Limiting grooves 16 are opened on both sides of the inner wall of the worktable 1. The two limiting sliders 15 are slidably mounted inside the two limiting grooves 16 respectively. A support rod 17 is fixedly mounted at one end of the top of the moving strip 14. The top of the support rod 17 extends to the upper part of the worktable 1 and is fixedly mounted on an upper fixing plate 18. A sliding rod 19 is fixedly mounted on the lower side of the upper fixing plate 18. The bottom of the sliding rod 19 is fixedly connected to the support rod 17 through the lower fixing plate 22.

[0024] A spring 21 is fitted on the surface of the slide rod 19, and a sliding sleeve 20 is fitted on the upper end of the surface of the slide rod 19. The two ends of the spring 21 are fixedly connected to the sliding sleeve 20 and the lower fixing plate 22 respectively. One side of the sliding sleeve 20 is fixedly connected to the vacuum suction cup 5 through the support arm 25. The top of the support arm 25 is rotatably mounted with a rotating shaft 24 through the positioning seat 23. The surface of the rotating shaft 24 is in close contact with the limiting strip 7.

[0025] When the turntable 9 rotates, it drives the moving bar 14 to move through the transmission pin 13. When the moving bar 14 moves, it drives the two limit sliders 15 to slide inside the two limit grooves 16, which increases the stability of the moving bar 14 when it moves. At the same time, the moving bar 14 drives the support arm 25 to move through the support rod 17. When the support arm 25 moves, it drives the vacuum suction cup 5 to move to one side of the processing table 3.

[0026] During the movement of the support arm 25, the rotating shaft 24 will slide along the limiting strip 7. The compression of the limiting strip 7 will cause the support arm 25 to move downward. When the support arm 25 moves downward, the sliding sleeve 20 will move downward along the surface of the sliding rod 19 and simultaneously compress the spring 21. This ensures the stability of the movement of the support arm 25 while giving it an elastic restoring effect. When the support arm 25 moves downward, it will cause the vacuum suction cup 5 to move downward and approach the lead frame and suck it up. When the drive motor 6 drives the turntable 9 to rotate continuously, it will cause the support arm 25 to move towards the side closer to the placement groove 2. With the cooperation of the limiting strip 7, the support arm 25 will cause the vacuum suction cup 5 to move downward and approach the placement groove 2, and at the same time, the lead frame will be placed inside the placement groove 2 to complete the unloading.

Claims

1. A blanking device for a multi-terminal lead frame, comprising a worktable (1), characterized in that: The bottom four corners of the workbench (1) are fixedly provided with supporting legs (4), a placing groove (2) is formed in one side of the top of the workbench (1), a processing table (3) is fixedly installed on the other side of the top of the workbench (1), a vacuum chuck (5) is arranged at the middle of the upper portion of the workbench (1), a driving motor (6) is fixedly installed at the middle of the inner bottom of the workbench (1), a limiting strip (7) is arranged on one side of the upper portion of the workbench (1), connecting rods (8) are fixedly installed at the bottoms of both ends of the limiting strip (7), the bottoms of the two connecting rods (8) are fixedly connected with the top of the workbench (1), the output end of the driving motor (6) is provided with a transmission assembly, the transmission assembly is in transmission connection with the vacuum chuck (5), and the driving motor (6) outputs power to the vacuum chuck (5) through the transmission assembly when the driving motor (6) operates, so that the vacuum chuck (5) moves to unload.

2. The blanking apparatus for a multi-terminal lead frame according to claim 1, wherein: The transmission assembly comprises a rotating disc (9), the rotating disc (9) is fixedly installed at the output end of the driving motor (6), the lower side of the rotating disc (9) is fixedly provided with a connecting ring (10), the bottom of the connecting ring (10) is fixedly installed with a limiting slip ring (11), the inner bottom of the workbench (1) is formed with an annular sliding groove (12), and the limiting slip ring (11) is slidingly installed in the annular sliding groove (12).

3. The blanking apparatus for a multi-terminal lead frame as set forth in claim 2, wherein: The upper side of the rotating disc (9) is rotatably provided with a transmission pin (13), the surface of the transmission pin (13) is sleeved with a moving strip (14), the both ends of the moving strip (14) are fixedly installed with limiting sliding blocks (15), the inner walls of the both sides of the workbench (1) are formed with limiting sliding grooves (16), the two limiting sliding blocks (15) are slidingly installed in the two limiting sliding grooves (16) respectively, one end of the top of the moving strip (14) is fixedly installed with a supporting rod (17), the top end of the supporting rod (17) extends to the upper portion of the workbench (1) and is fixedly installed with an upper fixed plate (18), the lower side of the upper fixed plate (18) is fixedly installed with a sliding rod (19), and the bottom of the sliding rod (19) is fixedly connected with the supporting rod (17) through a lower fixed plate (22).

4. The apparatus of claim 3, wherein: The surface of the sliding rod (19) is sleeved with a spring (21), the upper end of the surface of the sliding rod (19) is sleeved with a sliding sleeve (20), the both ends of the spring (21) are fixedly connected with the sliding sleeve (20) and the lower fixed plate (22) respectively, one side of the sliding sleeve (20) is fixedly connected with the vacuum chuck (5) through a supporting arm (25), the top of the supporting arm (25) is rotatably provided with a rotating shaft (24) through a positioning seat (23), and the surface of the rotating shaft (24) is tightly attached to the limiting strip (7).

Images