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CN-224208957-U - Diode lead stamping die

CN224208957UCN 224208957 UCN224208957 UCN 224208957UCN-224208957-U

Abstract

The utility model discloses a diode lead stamping die which comprises a first mounting seat, a pressing block, an elastic piece, a second mounting seat and a driving block, wherein the first mounting seat is provided with a first hole body, a plurality of first hole bodies are arranged, a forming area is formed between the first hole bodies, the pressing block is slidably inserted into the first hole bodies, one end of the pressing block, which faces the forming area, is a pressing head, the pressing head is used for stamping a shell of a diode lead, the elastic piece is arranged between the first mounting seat and the pressing block, the elastic piece applies elastic force for the pressing block, which retracts towards the first hole body, the second mounting seat is arranged adjacent to the first mounting seat, the driving block is connected to the second mounting seat, the driving block is correspondingly arranged with the pressing block, and the driving block is used for driving the pressing block to move towards the forming area. The shell is extruded by the drive block drive briquetting, and because the pressure head is adopted to carry out local extrusion, local pressure is big to make the shell deformation position be connected more closely with the inner core, thereby avoid because the problem that the inner coating that the connection is inseparable leads to drops easily.

Inventors

  • GUAN HAIZHOU

Assignees

  • 昆山道铭晨伊半导体有限公司

Dates

Publication Date
20260508
Application Date
20250522

Claims (6)

  1. 1. A die for stamping a diode lead, comprising: The first mounting seat is provided with a plurality of first hole bodies, and a forming area is formed between the first hole bodies; the pressing block is inserted into the first hole body in a sliding manner, one end of the pressing block, facing the forming area, is a pressing head, and the pressing head is used for stamping a shell of the diode lead; The elastic piece is arranged between the first mounting seat and the pressing block, and the elastic piece applies elastic force towards retraction in the first hole body to the pressing block; The second installation seat is arranged adjacent to the first installation seat; The driving block is connected to the second mounting seat, the driving block is correspondingly arranged with the pressing block, and the driving block is used for driving the pressing block to move towards the direction of the forming area.
  2. 2. The die set for stamping a diode lead according to claim 1, wherein the first hole is uniformly formed around the central axis of the molding region.
  3. 3. The die for stamping a diode lead according to claim 1, wherein the first hole body comprises a hole a and a hole B which are communicated, the pressing block is slidably inserted into the hole a, and the hole B is used for slidably inserting the driving block.
  4. 4. The die for stamping a diode lead according to claim 1, wherein the pressing block has a first pressing surface, the driving block has a second pressing surface, the first pressing surface and the second pressing surface are inclined structures relative to the movement direction of the pressing block, and the pressing block moves in the first hole body by pressing the first pressing surface and the second pressing surface against each other.
  5. 5. The die for stamping a diode lead according to claim 1, wherein each of the pressing blocks is provided with two elastic members stacked to be disposed on both sides of the pressing head.
  6. 6. The die set for stamping a diode lead as defined in claim 1, wherein the upper surface of the ram has recessed areas, all of which collectively form a holding structure for the diode.

Description

Diode lead stamping die Technical Field The utility model relates to the technical field of diode manufacturing, in particular to a diode lead stamping die. Background The diode lead adopts a composite conductive structure, and a coaxial assembly relationship is formed by a metal shell and a conductive inner core, wherein the metal shell is specifically a copper shell, a plating layer is arranged on the surface of the shell, and the shell is tightly sleeved on the outer side of the inner core. The traditional manufacturing process adopts a hexagonal plane crimping technology to realize the mechanical connection of the shell and the inner core, so that the shell radially contracts and deforms to envelop the inner core, and in the compacting process, the inner plating layer of the shell has the problem of falling off, so that the internal resistance is increased, and the service life of a product is shortened. Disclosure of utility model According to the embodiment of the application, the diode lead stamping die is provided, the local extrusion strength is increased by reducing the extrusion area, and the connection compactness between the outer shell and the inner core is improved, so that the problem of plating falling is avoided. The embodiment of the application provides a diode lead stamping die, which comprises: The first mounting seat is provided with a plurality of first hole bodies, and a forming area is formed between the first hole bodies; the pressing block is inserted into the first hole body in a sliding manner, one end of the pressing block, facing the forming area, is a pressing head, and the pressing head is used for stamping a shell of the diode lead; The elastic piece is arranged between the first mounting seat and the pressing block, and the elastic piece applies elastic force towards retraction in the first hole body to the pressing block; The second installation seat is arranged adjacent to the first installation seat; The driving block is connected to the second mounting seat, the driving block is correspondingly arranged with the pressing block, and the driving block is used for driving the pressing block to move towards the direction of the forming area. The embodiment has the beneficial effects that the driving block drives the pressing block to extrude the shell, and the pressing head is adopted to locally extrude the shell, so that the local pressure is high, the deformation position of the shell is more tightly connected with the inner core, and the problem that the inner plating layer is easy to fall off due to the fact that the connection is not tight is avoided. On the basis of the above embodiment, the embodiment of the present application may be further modified as follows: In one embodiment of the present application, the first hole body uniformly surrounds the central axis of the forming area. The method has the beneficial effects that the first hole bodies (and the pressing blocks) are uniformly distributed around the central axis of the forming area, so that the shell is uniformly stressed in the stamping process, and the uniform load can obviously reduce the thickness deviation of the deformation area of the shell. In one embodiment of the application, the first hole body comprises a hole A and a hole B which are communicated, the pressing block is slidably inserted into the hole A, and the hole B is used for slidably inserting the driving block. The method has the beneficial effects that the first hole body is designed into the hole A (for sliding of the pressing block) and the hole B (for sliding of the driving block) which are communicated, so that the split guide structure is formed, the movement paths of the pressing block and the driving block are strictly corresponding, radial deviation of the pressing block in the extrusion process is avoided, the perpendicularity and the stability of the stamping action are obviously improved, and the accurate and controllable deformation position of the shell is ensured. In one embodiment of the application, the pressing block is provided with a first pressing surface, the driving block is provided with a second pressing surface, the first pressing surface and the second pressing surface are of inclined structures relative to the movement direction of the pressing block, and the pressing block moves in the first hole body through mutual extrusion of the first pressing surface and the second pressing surface. The method has the beneficial effects that the linear motion of the driving block is converted into the vertical stamping motion of the pressing block through the inclined surface structure, and the inclined surface guide has the characteristic of stable motion, so that the stamping forming process is more stable, the contact area of the inclined surface is large, and the pressure intensity of the contact position of the pressing block and the driving block can be reduced. In one embodiment of the application, each pressing