Forming structure of integrated circuit lead frame

Abstract

The utility model discloses a forming structure of an integrated circuit lead frame, which structurally comprises a base and a protective shell fixedly connected with the base. The automatic punching machine comprises a base, and further comprises a motor, a mounting frame, a connecting frame, an upper punching die, a lower punching die, a hydraulic cylinder, a blanking knife, a lead screw, a left driving gear, a left driven gear, a connecting rod, a right driving gear, a right driven gear, a lead frame, a limiting groove, a limiting block and a limiting bolt, the connecting frame is arranged on the upper portion of the base, and the connecting frame and the base are fixedly connected into a whole; one end of the hydraulic cylinder is fixedly connected with the connecting frame, the other end of the hydraulic cylinder is connected with the upper stamping die, the blanking knife is connected with the upper stamping die, the lower stamping die is arranged on the base, and the upper stamping die and the lower stamping die are connected in a matched mode. The utility model belongs to the technical field of lead frame forming devices, and particularly relates to a forming structure of an integrated circuit lead frame.

Description

Technical Field

[0001] The utility model belongs to the technical field of lead frame forming devices, in particular to a forming structure of an integrated circuit lead frame. Background Art

[0002] As the chip carrier of integrated circuits, the lead frame is a key structural component that uses bonding materials to achieve electrical connection between the internal circuit lead ends of the chip and the external leads to form an electrical circuit. It serves as a bridge to connect with external wires. Lead frames are required in most semiconductor integrated blocks and are an important basic material in the electronic information industry.

[0003] At present, the forming of integrated circuit lead frames is mainly divided into stamping type and etching type. Compared with the etching type, stamping forming has high production efficiency and is suitable for large-scale production. However, the existing integrated circuit lead frame forming equipment still needs other equipment for separate punching after stamping forming, which affects the efficiency of large-scale production.

[0004] Therefore, we propose a molding structure of an integrated circuit lead frame to solve the above problems. Utility Model Content

[0005] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a molding structure of an integrated circuit lead frame, which avoids the problem of affecting production efficiency due to separate punching during lead frame molding.

[0006] The technical solution adopted by the utility model is as follows: the forming structure of the integrated circuit lead frame proposed by the utility model includes a base and a protective shell, the protective shell is fixedly connected to the base, and also includes a motor, a mounting frame, a connecting frame, an upper stamping die, a lower stamping die, a hydraulic cylinder, a punching knife, a screw rod, a left driving gear, a left driven gear, a connecting rod, a right driving gear, a right driven gear, a lead frame, a limit groove, a limit block and a limit bolt, the connecting frame is arranged on the upper part of the base, the connecting frame and the base are fixedly connected as a whole, one end of the hydraulic cylinder is fixedly connected to the connecting frame, the other end of the hydraulic cylinder is connected to the upper stamping die, the punching knife is connected to the upper stamping die, the lower stamping die is arranged on the base, and the upper stamping die and the lower stamping die are matched and connected.

[0007] Furthermore, it includes a base and a protective shell, the protective shell and the base are fixedly connected, and also includes a motor, a mounting frame, a connecting frame, an upper stamping die, a lower stamping die, a hydraulic cylinder, a punching knife, a screw rod, a left driving gear, a left driven gear, a connecting rod, a right driving gear, a right driven gear, a lead frame, a limit groove, a limit block and a limit bolt. The connecting frame is arranged on the upper part of the base, the connecting frame and the base are fixedly connected as a whole, one end of the hydraulic cylinder is fixedly connected to the connecting frame, and the other end of the hydraulic cylinder is connected to the upper stamping die, the punching knife is connected to the upper stamping die, the lower stamping die is arranged on the base, and the upper stamping die and the lower stamping die are matched and connected.

[0008] Furthermore, a limiting block is provided at the lower part of the limiting bolt, the limiting block is rotatably connected to the pressing plate, the pressing plate is slidably connected to the limiting groove, and the pressing plate is limitedly connected to the lead frame.

[0009] Furthermore, the four corners of the mounting frame are provided with limiting bolts.

[0010] Furthermore, the screw rod is rotatably connected to the base and passes through the base. Screw rods are provided on both sides of the base. The screw rod on the left side is fixedly connected to the left driven gear, and the screw rod on the right side is fixedly connected to the right driven gear.

[0011] Further, the motor is arranged on the outside of the protective shell, the connecting rod is rotatably connected to the protective shell and passes through the protective shell, the connecting rod is connected to the motor, the left driving gear is fixed to the left end of the connecting rod, the right driving gear is fixed to the right end of the connecting rod, the left driven gear is rotatably connected to the left side of the base, the left driven gear is meshed with the left driving gear, the right driven gear is rotatably connected to the right side of the base, and the right driven gear is meshed with the right driving gear.

[0012] The beneficial effects achieved by the utility model using the above structure are as follows:

[0013] The forming structure of the integrated circuit lead frame proposed in this scheme can quickly replace the fixed lead frame by rotating the limit bolt to press the pressure plate, thereby increasing the replacement efficiency. The punching is completed at the same time as the stamping and forming under the drive of the hydraulic cylinder, thereby improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the first internal structure of the utility model;

[0016] Figure 3 It is a second internal structure schematic diagram of the utility model;

[0017] Figure 4 It is a partial cross-sectional enlarged schematic diagram of the utility model;

[0018] Figure 5 for Figure 2 A partial enlarged schematic diagram in the middle.

[0019] Among them, 1. base, 2. protective shell, 3. motor, 4. mounting frame, 5. connecting frame, 6. upper stamping die, 7. lower stamping die, 8. hydraulic cylinder, 9. punching knife, 10. screw, 11. left driving gear, 12. left driven gear, 13. connecting rod, 14. right driving gear, 15. right driven gear, 16. lead frame, 17. limit groove, 18. limit block, 19. limit bolt, 20. pressure plate.

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a 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 to the present invention. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a forming structure of an integrated circuit lead frame proposed by the utility model comprises a base 1 and a protective shell 2, wherein the protective shell 2 is fixedly connected to the base 1, and further comprises a motor 3, a mounting frame 4, a connecting frame 5, an upper stamping die 6, a lower stamping die 7, a hydraulic cylinder 8, a punching knife 9, a screw rod 10, a left driving gear 11, a left driven gear 12, a connecting rod 13, a right driving gear 14, a right driven gear 15, a lead frame 16, a limiting groove 17, a limiting block 18 and a limiting bolt 19, wherein the connecting frame 5 is arranged on the upper part of the base 1, the connecting frame 5 and the base 1 are fixedly connected as a whole, one end of the hydraulic cylinder 8 is fixedly connected to the connecting frame 5, the other end of the hydraulic cylinder 8 is connected to the upper stamping die 6, the punching knife 9 is connected to the upper stamping die 6, the lower stamping die 7 is arranged on the base 1, and the upper stamping die 6 and the lower stamping die 7 are matched and connected,

[0023] The mounting frame 4 is slidably connected to the base 1, the lead frame 16 is slidably connected to the mounting frame 4, the mounting frame 4 is threadedly connected to the lead screw 10, the mounting frame 4 is a C-shaped structure, a limiting groove 17 is provided on the inner side of the mounting frame 4, the lead frame 16 is slidably connected to the limiting groove 17, the limiting bolt 19 is rotatably connected to the mounting frame 4 and passes through the mounting frame 4, the limiting bolt 19 is threadedly connected to the mounting frame 4, a limiting block 18 is provided at the lower part of the limiting bolt 19, the limiting block 18 is rotatably connected to the pressure plate 20, the pressure plate 20 is slidably connected to the limiting groove 17, the pressure plate 20 is limitedly connected to the lead frame 16, and limiting bolts 19 are provided at the four corners of the mounting frame 4.

[0024] The screw rod 10 is rotatably connected to the base 1 and passes through the base 1. Screw rods 10 are provided on both sides of the base 1. The screw rod 10 on the left side is fixedly connected to the left driven gear 12, and the screw rod 10 on the right side is fixedly connected to the right driven gear 15. The motor 3 is arranged on the outside of the protective shell 2, the connecting rod 13 is rotatably connected to the protective shell 2 and passes through the protective shell 2, the connecting rod 13 is connected to the motor 3, the left driving gear 11 is fixedly connected to the left end of the connecting rod 13, the right driving gear 14 is fixedly connected to the right end of the connecting rod 13, the left driven gear 12 is rotatably connected to the left side of the base 1, the left driven gear 12 is meshedly connected to the left driving gear 11, the right driven gear 15 is rotatably connected to the right side of the base 1, and the right driven gear 15 is meshedly connected to the right driving gear 14.

[0025] During specific use, the lead frame 16 is placed inside the mounting frame 4 along the limiting groove 17, and the limiting bolt 19 is rotated to press the pressure plate 20 to limit the lead frame 16. The lead frame 16 can be quickly fixed and replaced, and the motor 3 is started to rotate the connecting rod 13, driving the left driving gear 11 and the right driving gear 14 to rotate, while driving the left driven gear 12, the right driven gear 15 and the screw rod 10 to rotate, and the mounting frame 4 is moved to control the lead frame 16 to move forward. When the specified position is reached, the hydraulic cylinder 8 is started to control the upper stamping die 6 to press down and cooperate with the lower stamping die 7 to stamp and form, and at the same time, the punching knife 9 completes the cutting of the lead frame 16, and can complete the cutting of the lead frame 16 while stamping and forming the lead frame 16, thereby increasing production efficiency.

[0026] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A molding structure of an integrated circuit lead frame, comprising a base and a protective shell, wherein the protective shell and the base are fixedly connected, characterized in that: It also includes a motor, a mounting frame, a connecting frame, an upper punching die, a lower punching die, a hydraulic cylinder, a punching knife, a screw rod, a left driving gear, a left driven gear, a connecting rod, a right driving gear, a right driven gear, a lead frame, a limit groove, a limit block and a limit bolt. The connecting frame is arranged on the upper part of the base, the connecting frame and the base are fixedly connected as a whole, one end of the hydraulic cylinder is fixedly connected to the connecting frame, the other end of the hydraulic cylinder is connected to the upper punching die, the punching knife is connected to the upper punching die, the lower punching die is arranged on the base, and the upper punching die and the lower punching die are matched and connected; The mounting frame is slidably connected to the base, the lead frame is slidably connected to the mounting frame, the mounting frame is threadedly connected to the lead screw, the mounting frame is a C-shaped structure, a limiting groove is provided on the inner side of the mounting frame, the lead frame is slidably connected to the limiting groove, the limiting bolt is rotatably connected to the mounting frame and penetrates the mounting frame, and the limiting bolt is threadedly connected to the mounting frame; A limiting block is provided at the lower part of the limiting bolt, the limiting block is rotatably connected to the pressing plate, the pressing plate is slidably connected to the limiting groove, and the pressing plate is limitedly connected to the lead frame.

2. The molding structure of an integrated circuit lead frame according to claim 1, characterized in that: The four corners of the mounting frame are all provided with limiting bolts.

3. The molding structure of an integrated circuit lead frame according to claim 2, characterized in that: The screw rod is rotatably connected to the base and penetrates the base. Screw rods are arranged on both sides of the base. The screw rod on the left side is fixedly connected to the left driven gear, and the screw rod on the right side is fixedly connected to the right driven gear.

4. The forming structure of an integrated circuit lead frame according to claim 3, characterized in that: The motor is arranged outside the protective shell, the connecting rod is rotatably connected to the protective shell and penetrates the protective shell, the connecting rod is connected to the motor, the left driving gear is fixedly connected to the left end of the connecting rod, the right driving gear is fixedly connected to the right end of the connecting rod, the left driven gear is rotatably connected to the left side of the base, the left driven gear is meshed with the left driving gear, the right driven gear is rotatably connected to the right side of the base, and the right driven gear is meshed with the right driving gear.

Images