Lead frame etching die

Abstract

The utility model discloses a lead frame etching die, and relates to the technical field of lead frame dies. The lead frame etching die comprises a die body, a protective plate is arranged on the side face of the die body in a sliding mode, auxiliary mechanisms are arranged on the surface of the die body and the surface of the protective plate, and limiting mechanisms are arranged on one side and the bottom of the die body. According to the stamping die, the die body can be fixed to the surface of the stamping machine tool through the limiting mechanism, disassembly and assembly are easy and convenient, disassembly and assembly tools are not needed, and therefore work efficiency is improved, and damage to the die body caused by traditional screw installation can be avoided; and in the process, the auxiliary mechanism can be triggered, and under the combined action of the protection plate and the auxiliary mechanism, the punching machine can be prevented from making rigid contact with the top of the die body during operation, so that the protection effect on the die body is achieved, and the service life of the die body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of lead frame molds, in particular to a lead frame etching mold. Background Art

[0002] Lead frame is the basic material of semiconductor packaging. As the chip carrier of integrated circuit, it uses bonding materials to realize the electrical connection between the internal circuit lead terminals of the chip and the external leads. Lead frame etching mold is a mold used to form a specific pattern or shape on a metal plate through chemical etching method. In integrated circuit manufacturing, lead frame plays the role of electrical connection between the internal circuit lead terminals of the chip and the external leads. It is an important basic material in the electronic information industry, and etching mold is a necessary tool for producing high-precision lead frames.

[0003] In actual processing and production, the installation of the mold is to fit the mold to the stamping plate of the stamping machine, and then fix the mold with bolts and other fixings. This method is more cumbersome and requires disassembly and assembly tools. In addition, the stamping machine will be in direct rigid contact with the mold during operation, which will cause damage to the mold over time. Damage to the mold will cause errors in the finished product, and the mold needs to be replaced, affecting the service life of the mold.

[0004] For this purpose, a lead frame etching die is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the problems mentioned in the above background technology, and the utility model provides a lead frame etching mold.

[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0007] A lead frame etching mold comprises a mold body, a protective plate for protecting the top of the mold body is slidably provided on the side of the mold body, an auxiliary mechanism for buffering the protective plate is provided on the surface of the mold body and the surface of the protective plate, and a limiting mechanism is provided on one side and the bottom of the mold body for processing the surface of the mold body fixed to a stamping machine.

[0008] Furthermore, the auxiliary mechanism includes a cavity, a cavity is opened on the surface of the mold body, a spring is fixedly provided at the inner bottom of the cavity, a shaft column is fixedly provided at the top of the spring, and the shaft column is slidingly arranged with the inner wall of the cavity, and the top of the shaft column is fixedly connected to the surface of the protective plate.

[0009] Furthermore, there are two groups of protective plates, and both groups of protective plates are arranged in an L shape.

[0010] Furthermore, the limiting mechanism includes a movable groove, a movable groove is opened at the bottom of the mold body, a bidirectional threaded rod is rotatably provided on the inner wall of the movable groove, and one end of the bidirectional threaded rod penetrates the surface of the mold body and extends to the outside of the movable groove, and a knob is fixedly provided on this end of the bidirectional threaded rod, and a movable block is threadedly connected to the surface of the bidirectional threaded rod, and the movable block is slidably arranged with the inner wall of the movable groove, and a limiting plate is fixedly provided at the bottom of the movable block.

[0011] Furthermore, the movable block and the limiting plates are each provided with two groups, and the two groups of limiting plates are arranged correspondingly.

[0012] Furthermore, the limiting plate is arranged in an L shape, and a non-slip layer is provided on the surface of the limiting plate.

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

[0014] 1. The utility model can fix the mold body on the surface of the stamping machine through the limiting mechanism. The disassembly and assembly are simple and no disassembly and assembly tools are required, thereby improving work efficiency and avoiding damage to the mold body caused by traditional screw installation. When the stamping machine punches the mold body, it will first contact the top of the protective plate, and the auxiliary mechanism will be triggered in the process. Under the joint action of the protective plate and the auxiliary mechanism, the stamping machine can avoid rigid contact with the top of the mold body during operation, thereby realizing the protection of the mold body and extending the service life of the mold body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the front section of the utility model;

[0017] Figure 3 It is a side cutaway schematic diagram of the utility model;

[0018] Figure numerals: 1. mold body; 2. protective plate; 3. auxiliary mechanism; 301. cavity; 302. spring; 303. shaft column; 4. limiting mechanism; 401. movable groove; 402. bidirectional threaded rod; 403. knob; 404. movable block; 405. limiting plate. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme 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 part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0022] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] like Figures 1 to 3 As shown, a lead frame etching mold comprises a mold body 1, a protective plate 2 for protecting the top of the mold body 1 is slidably provided on the side of the mold body 1, an auxiliary mechanism 3 for buffering the protective plate 2 is provided on the surface of the mold body 1 and the surface of the protective plate 2, and a limiting mechanism 4 for processing the mold body 1 and fixing it on the surface of a stamping machine is provided on one side and the bottom of the mold body 1; specifically, the mold body 1 can be fixed to the surface of the stamping machine by the limiting mechanism 4, and the disassembly and assembly are simple and easy, and no disassembly and assembly tools are required, thereby improving work efficiency and avoiding damage to the mold body 1 caused by traditional screw installation. When the stamping machine punches the mold body 1, it will first contact with the top of the protective plate 2, and in this process, the auxiliary mechanism 3 will be triggered. Under the joint action of the protective plate 2 and the auxiliary mechanism 3, the rigid contact between the top of the mold body 1 and the stamping machine during operation can be avoided, thereby achieving the protection of the mold body 1 and extending the service life of the mold body 1.

[0024] like Figure 2 , Figure 3As shown, the auxiliary mechanism 3 includes a cavity 301, and the surface of the mold body 1 is provided with a cavity 301, and a spring 302 is fixedly provided at the inner bottom of the cavity 301, and a shaft column 303 is fixedly provided at the top of the spring 302, and the shaft column 303 is slidingly arranged with the inner wall of the cavity 301, and the top of the shaft column 303 is fixedly connected with the surface of the protective plate 2; specifically, when the stamping machine is operating, it will first apply pressure to the top of the protective plate 2, and under the action of the force, the protective plate 2 applies pressure to the shaft column 303, so that the shaft column 303 applies pressure to the spring 302, and then part of the shaft column 303 is embedded in the interior of the cavity 301, and when the top of the protective plate 2 is flush with the top of the mold body 1, the stamping of the material on the top of the mold body 1 is completed.

[0025] like Figure 1 , Figure 2 As shown, there are two groups of protective plates 2, and both groups of protective plates 2 are L-shaped; specifically, the two groups of protective plates 2 can protect both sides of the mold body 1, and the two groups of protective plates 2 can ensure that the force on both sides of the mold body 1 is uniform.

[0026] like Figure 2 , Figure 3 As shown, the limiting mechanism 4 includes a movable groove 401, and the bottom of the mold body 1 is provided with a movable groove 401, and the inner wall of the movable groove 401 is rotatably provided with a bidirectional threaded rod 402, and one end of the bidirectional threaded rod 402 penetrates the surface of the mold body 1 and extends to the outside of the movable groove 401, and the end of the bidirectional threaded rod 402 is fixedly provided with a knob 403, and the surface of the bidirectional threaded rod 402 is threadedly connected with a movable block 404, and the movable block 404 is slidably arranged with the inner wall of the movable groove 401, and the bottom of the movable block 404 is fixedly provided with a limiting plate 405; specifically, rotating the knob 403 causes the bidirectional threaded rod 402 to rotate, thereby causing the movable block 404 to slide, and then causing the limiting plate 405 to move.

[0027] like Figure 2 , Figure 3 As shown, the movable blocks 404 and the limit plates 405 are each provided with two groups, and the two groups of limit plates 405 are arranged correspondingly; specifically, the two-way threaded rod 402 rotates to make the two groups of movable blocks 404 slide toward the middle or to the sides at the same time, thereby realizing the separation and approach of the two groups of limit plates 405. When the bottom of the mold body 1 is in contact with the top of the stamping plate of the stamping machine, the knob 403 is rotated again to make the two groups of limit plates 405 approach. When the opposite surfaces of the two groups of limit plates 405 are in contact with the two sides of the mold body 1 respectively, the installation of the mold body 1 is realized.

[0028] like Figure 2 , Figure 3As shown, the limit plate 405 is arranged in an L-shape, and the surface of the limit plate 405 is provided with an anti-skid layer; specifically, the L-shaped arrangement of the limit plate 405 can make the distance between the two groups of limit plates 405 greater than the width of the mold body 1 when the two groups of limit plates 405 are far away from each other, and the anti-skid layer on the surface of the limit plate 405 can increase the friction resistance between the limit plate 405 and the stamping plate of the stamping machine, thereby improving the stability of the mold body 1.

[0029] In summary: first, the mold body 1 can be fixed to the surface of the stamping machine through the limiting mechanism 4, which is easy to disassemble and assemble without the need for disassembly tools, thereby improving work efficiency and avoiding damage to the mold body 1 caused by traditional screw installation. When the stamping machine is stamping the mold body 1, it will first contact the top of the protective plate 2, and in this process, the auxiliary mechanism 3 will be triggered. Under the joint action of the protective plate 2 and the auxiliary mechanism 3, the stamping machine can avoid rigid contact with the top of the mold body 1 during operation, thereby achieving a protective effect on the mold body 1 and extending the service life of the mold body 1. When the stamping machine is operating, it will first apply pressure to the top of the protective plate 2, and under the action of the force, the protective plate 2 will press against the shaft column 3. 03 applies pressure, so that the shaft column 303 applies pressure to the spring 302, and then the shaft column 303 is partially embedded in the interior of the cavity 301. When the top of the protective plate 2 is flush with the top of the mold body 1, the stamping of the material on the top of the mold body 1 is completed. The two groups of protective plates 2 can protect both sides of the mold body 1, and the two groups of protective plates 2 can ensure that the force on both sides of the mold body 1 is uniform. The L-shaped setting of the limit plate 405 can make the distance between the two groups of limit plates 405 greater than the width of the mold body 1 when the two groups of limit plates 405 are far away from each other. The anti-slip layer on the surface of the limit plate 405 can increase the friction resistance between the limit plate 405 and the stamping plate of the stamping machine, thereby improving the stability of the mold body 1.

[0030] 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. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A lead frame etching mold, characterized in that: The invention comprises a mold body (1), a protective plate (2) for protecting the top of the mold body (1) being slidably provided on the side of the mold body (1), an auxiliary mechanism (3) for buffering the protective plate (2) being provided on the surface of the mold body (1) and the surface of the protective plate (2), and a limiting mechanism (4) for processing the surface of the mold body (1) fixed to a punching machine tool being provided on one side and the bottom of the mold body (1).

2. A lead frame etching mold according to claim 1, characterized in that: The auxiliary mechanism (3) comprises a cavity (301), the surface of the mold body (1) is provided with the cavity (301), a spring (302) is fixedly provided at the inner bottom of the cavity (301), a shaft column (303) is fixedly provided at the top end of the spring (302), and the shaft column (303) is slidably arranged with the inner wall of the cavity (301), and the top end of the shaft column (303) is fixedly connected to the surface of the protective plate (2).

3. A lead frame etching mold according to claim 1, characterized in that: There are two groups of protective plates (2) in total, and both groups of protective plates (2) are arranged in an L-shape.

4. A lead frame etching mold according to claim 1, characterized in that: The limiting mechanism (4) comprises a movable groove (401). The bottom of the mold body (1) is provided with the movable groove (401). A bidirectional threaded rod (402) is rotatably provided on the inner wall of the movable groove (401). One end of the bidirectional threaded rod (402) penetrates the surface of the mold body (1) and extends to the outside of the movable groove (401). A knob (403) is fixedly provided on the end of the bidirectional threaded rod (402). A movable block (404) is threadedly connected to the surface of the bidirectional threaded rod (402). The movable block (404) and the inner wall of the movable groove (401) are slidably arranged. A limiting plate (405) is fixedly provided on the bottom of the movable block (404).

5. A lead frame etching mold according to claim 4, characterized in that: The movable block (404) and the limiting plate (405) are each provided in two groups, and the two groups of limiting plates (405) are arranged correspondingly.

6. A lead frame etching mold according to claim 5, characterized in that: The limiting plate (405) is arranged in an L shape, and a non-slip layer is provided on the surface of the limiting plate (405).

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