Lead frame die cutting device

Abstract

The utility model discloses a lead frame die cutting device which comprises a base, a first connecting plate is installed on the base, a top plate is installed at the end, away from the base, of the first connecting plate, a hydraulic cylinder is installed on the top plate, the output end of the hydraulic cylinder penetrates through the top plate and is provided with a pressing plate, and a cutting die is movably installed on the pressing plate. A positioning mechanism is installed on the base, the positioning mechanism comprises two second connecting plates installed on the base, the right-hand threaded rod and the left-hand threaded rod are driven by the servo motor to rotate synchronously, so that the positioning plates are far away from each other or close to each other in the direction of the right-hand threaded rod, and when the distance between the two positioning plates is matched with materials, the materials can be positioned in the left-hand threaded rod and the right-hand threaded rod. The material is located between the two positioning plates, then the pressing plate and the cutting die are driven by the hydraulic cylinder to press downwards, and therefore die cutting treatment of the material is completed, the mode is easy to operate, the material does not need to be repeatedly and manually installed on the positioning mechanism, the labor cost is greatly reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lead frame die cutting, in particular to a lead frame die cutting device. Background Art

[0002] At present, the cutting of materials is usually carried out by using a cutting die as a lower die inside a pressure device, placing the materials on the cutting die, and applying a shear force to the materials through the cutting die of the pressure device, thereby cutting.

[0003] The utility model with publication number CN219599698U discloses a striping die-cutting device, including a pressure device, a chassis is fixedly installed on the upper end of the pressure device, and a hydraulic cylinder is arranged in the chassis, a lifting rod is movably arranged on the top of the pressure device, the upper end of the lifting rod is connected to the movable end of the hydraulic cylinder, the lower end of the lifting rod is fixedly connected to a fixing plate, and the lower end of the fixing plate is fixedly connected to an upper template, a lower template matching the upper template is fixedly installed on the bottom surface of the pressure device, and a positioning mechanism is detachably connected inside the lower template, the positioning mechanism includes a support platform and a positioning plate, by setting the positioning mechanism, the support platform of the positioning mechanism is fixed in the lower template in the pressure device, when in use, the staff can take out the positioning plate on the support platform, fit the soft material with the positioning plate, and then reinstall the positioning plate, so as to facilitate the staff to quickly place and replace the material.

[0004] When the striping die-cutting device disclosed in the above utility model is used, for a large number of materials, the materials need to be repeatedly installed manually on the positioning plate. This method is complicated to operate and has low work efficiency. Utility Model Content

[0005] The utility model aims to provide a lead frame die cutting device to solve the problem in the above background technology that materials need to be repeatedly installed manually on a positioning plate, which is complex to operate and has low work efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lead frame die-cutting device, comprising a base, a first connecting plate is installed on the base, a top plate is installed at one end of the first connecting plate away from the base, a hydraulic cylinder is installed on the top plate, the output end of the hydraulic cylinder passes through the top plate and is installed with a pressing plate, and a cutting die is movably installed on the pressing plate, and a positioning mechanism is installed on the base, the positioning mechanism includes two second connecting plates installed on the base, two baffles are connected between the two second connecting plates, one baffle is installed at the top end of the two second connecting plates, and the other baffle is installed at the lower position of the two second connecting plates to form an opening with the base, and a bottom plate is installed between the two baffles and two positioning plates are installed on the two positioning plates for relative sliding, the same positive and negative threaded rod is threadedly installed between the two positioning plates, and the two ends of the positive and negative threaded rod are respectively rotatably installed on the corresponding second connecting plates, one end of the positive and negative threaded rod is connected to the output end of a servo motor, and the servo motor is installed on the corresponding second connecting plate.

[0007] Preferably, two slide grooves are provided on the pressing plate, and two connecting strips are installed on the cutting die, and the connecting strips are adapted to the slide grooves.

[0008] Preferably, a connecting hole is opened on the top plate, and the centers of the connecting hole hydraulic cylinder and the pressing plate are on the same axis.

[0009] Preferably, the two positioning plates are respectively provided with a positive thread hole and a negative thread hole, and the positive thread hole and the negative thread hole are adapted to the two ends of the positive and negative thread rods.

[0010] Preferably, both positioning plates are provided with movable grooves, and both baffles are provided with connecting blocks, which are matched with the movable grooves.

[0011] Preferably, rubber pads are movably mounted on the ends of the two positioning plates that are close to each other.

[0012] Preferably, a groove is provided on the first connecting plate, and the bottom end of the groove is flush with the top end of the base.

[0013] The beneficial effects of the utility model are:

[0014] The utility model turns on the servo motor, which drives the positive and negative threaded rods connected thereto to rotate synchronously, so that the positioning plates threadedly connected on the positive and negative threaded rods move away from or close to each other along the direction of the positive and negative threaded rods. When the spacing between the two positioning plates matches the material, the servo motor is turned off, and then the material to be cut is pushed into the base through the opening between the baffle and the base. The material is between the two positioning plates, and its position is limited by the positioning plates. Then the hydraulic cylinder is turned on, and the hydraulic cylinder drives the pressing plate installed thereon and the knife die movably installed on the pressing plate to press down, thereby completing the die-cutting process of the material. This method is simple to operate and there is no need to repeatedly manually install the material on the positioning mechanism, which greatly reduces labor costs and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional structural schematic diagram of a lead frame die-cutting device proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the enlarged structure of position A of a lead frame die-cutting device proposed by the utility model;

[0017] Figure 3 It is a side cross-sectional structural schematic diagram of a lead frame die-cutting device proposed by the utility model;

[0018] Figure 4 It is a side cross-sectional structural schematic diagram of a positioning mechanism of a lead frame die-cutting device proposed by the utility model;

[0019] Figure 5 The utility model is a schematic diagram of a top cross-sectional structure of a positioning mechanism of a lead frame die-cutting device.

[0020] In the figure: 1. base; 2. first connecting plate; 3. top plate; 4. hydraulic cylinder; 5. pressing plate; 6. cutting die; 7. positioning mechanism; 8. second connecting plate; 9. baffle; 10. positioning plate; 11. positive and negative threaded rods; 12. servo motor; 13. slide groove; 14. connecting strip; 15. connecting hole; 16. positive threaded hole; 17. negative threaded hole; 18. movable groove; 19. connecting block; 20. rubber pad; 21. groove; 22. bottom plate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Specifically, a lead frame die-cutting device includes a base 1, a first connecting plate 2 is installed on the base 1, a top plate 3 is installed at one end of the first connecting plate 2 away from the base 1, a hydraulic cylinder 4 is installed on the top plate 3, the output end of the hydraulic cylinder 4 passes through the top plate 3 and is installed with a pressing plate 5, a knife die 6 is movably installed on the pressing plate 5, and a positioning mechanism 7 is installed on the base 1, the positioning mechanism 7 includes two second connecting plates 8 installed on the base 1, two baffles 9 are connected between the two second connecting plates 8, one baffle 9 is installed at the top of the two second connecting plates 8, and the other baffle 9 is installed at the lower position of the two second connecting plates 8 to form an opening with the base 1, and a bottom plate 22 is installed between the two baffles 9 and two positioning plates 10 are installed relatively slidably, the same positive and negative threaded rod 11 is threadedly installed between the two positioning plates 10, and the two ends of the positive and negative threaded rod 11 are respectively rotatably installed on the corresponding second connecting plate 8, one end of the positive and negative threaded rod 11 is connected to the output end of a servo motor 12, and the servo motor 12 is installed on the corresponding second connecting plate 8.

[0023] When the device is used, the servo motor 12 is first turned on, and the servo motor 12 drives the forward and reverse threaded rods 11 connected thereto to rotate synchronously, so that the positioning plates 10 threadedly connected on the forward and reverse threaded rods 11 move away from or approach each other along the direction of the forward and reverse threaded rods 11. When the spacing between the two positioning plates 10 is adapted to the material, the servo motor 12 is turned off, and then the material to be cut is pushed into the base 1 through the opening between the baffle 9 and the base 1. The material is between the two positioning plates 10, and its position is limited by the positioning plates 10. Then the hydraulic cylinder 4 is turned on, and the hydraulic cylinder 4 drives the pressing plate 5 installed thereon and the knife die 6 movably installed on the pressing plate 5 to press down, thereby completing the die-cutting process of the material. This method is simple to operate, and there is no need to repeatedly manually install the material on the positioning mechanism 7, which greatly reduces the labor cost and improves the work efficiency.

[0024] Specifically, in this embodiment, two slide grooves 13 are provided on the pressing plate 5, and two connecting strips 14 are installed on the cutting die 6. The connecting strips 14 are adapted to the slide grooves 13, so that the cutting die 6 can be slidably installed on the pressing plate 5 through the connecting strips 14. When different cutting operations are required on the material, the cutting die 6 on the pressing plate 5 can be replaced to meet the needs of different cutting requirements.

[0025] Specifically, in this embodiment, a connecting hole 15 is opened on the top plate 3, and the centers of the hydraulic cylinder 4 and the pressing plate 5 are on the same axis, so that the output end of the hydraulic cylinder 4 can pass through the top plate 3 through the connecting hole 15 and then be connected to the pressing plate 5, so that the hydraulic cylinder 4 can drive the pressing plate 5 to move synchronously when it is running.

[0026] Specifically, in this embodiment, the two positioning plates 10 are respectively provided with a positive threaded hole 16 and a negative threaded hole 17, and the positive threaded hole 16 and the negative threaded hole 17 are adapted to the two ends of the positive and negative threaded rod 11, so that the two positioning plates 10 can be threadedly connected to the positive and negative threaded rod 11 through the positive threaded hole 16 and the negative threaded hole 17. When the positive and negative threaded rod 11 rotates, the two positioning plates 10 threadedly connected thereto will approach or move away from each other as it rotates.

[0027] Specifically, in the present embodiment, movable grooves 18 are provided on the two positioning plates 10, and connecting blocks 19 are installed on the two baffles 9. The connecting blocks 19 are adapted to the movable grooves 18, so that the positioning plates 10 can be slidably installed between the two baffles 9 through the adaptability of the movable grooves 18 and the connecting blocks 19, and fit with the two baffles 9, so that the positioning plates 10 always maintain contact with the two baffles 9 during the movement, thereby improving the stability of the positioning plates 10.

[0028] Specifically, in the present embodiment, rubber pads 20 are movably mounted at one end of the two positioning plates 10 that are close to each other. When the material is positioned by the positioning mechanism 7, its two sides are in contact with the rubber pads 20, so that the rubber pads 20 can protect the material while limiting the position of the material, thereby preventing the material from directly contacting the positioning plate 10 and causing material wear.

[0029] Specifically, in this embodiment, a groove 21 is provided on the first connecting plate 2, and the bottom end of the groove 21 is flush with the top end of the base 1. When the uncut material is pushed into the base 1 by the staff, it will come into contact with the die-cut material. Therefore, during the pushing process of the unstriped material, it will be pushed out of the base 1 by the groove 21, thereby completing the collection of the cut material and avoiding the manual collection work.

[0030] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A lead frame die cutting device, comprising a base (1), characterized in that: The base (1) is provided with a first connecting plate (2), a top plate (3) is provided at one end of the first connecting plate (2) away from the base (1), a hydraulic cylinder (4) is provided on the top plate (3), an output end of the hydraulic cylinder (4) passes through the top plate (3) and is provided with a pressing plate (5), a cutting die (6) is movably provided on the pressing plate (5), a positioning mechanism (7) is provided on the base (1), the positioning mechanism (7) comprises two second connecting plates (8) provided on the base (1), two baffles (9) are connected between the two second connecting plates (8), and one baffle (9) is provided between the two second connecting plates (8) ), another baffle (9) is installed at the lower position of the two second connecting plates (8) to form an opening with the base (1), and a bottom plate (22) is installed between the two baffles (9) and two positioning plates (10) are relatively slidably installed, a same positive and negative threaded rod (11) is threadedly installed between the two positioning plates (10), and the two ends of the positive and negative threaded rod (11) are respectively rotatably installed on the corresponding second connecting plates (8), one end of the positive and negative threaded rod (11) is connected to the output end of a servo motor (12), and the servo motor (12) is installed on the corresponding second connecting plate (8).

2. A lead frame die cutting device according to claim 1, characterized in that: The pressing plate (5) is provided with two slide grooves (13), and the cutting die (6) is provided with two connecting strips (14), and the connecting strips (14) are adapted to the slide grooves (13).

3. A lead frame die cutting device according to claim 1, characterized in that: The top plate (3) is provided with a connection hole (15), and the centers of the connection hole (15), the hydraulic cylinder (4) and the pressing plate (5) are located on the same axis.

4. A lead frame die cutting device according to claim 1, characterized in that: The two positioning plates (10) are respectively provided with a positive thread hole (16) and a negative thread hole (17), and the positive thread hole (16) and the negative thread hole (17) are adapted to the two ends of the positive and negative thread rod (11).

5. The lead frame die-cutting device according to claim 1, characterized in that: The two positioning plates (10) are both provided with a moving groove (18), and the two baffle plates (9) are both provided with a connecting block (19), and the connecting block (19) is adapted to the moving groove (18).

6. A lead frame die cutting device according to claim 1, characterized in that: A rubber pad (20) is movably mounted on one end of the two positioning plates (10) that are close to each other.

7. The lead frame die-cutting device according to claim 1, characterized in that: The first connecting plate (2) is provided with a groove (21), and the bottom end of the groove (21) is flush with the top end of the base (1).

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