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A method and device for continuous punching of micro parts

A technology of micro-parts and absorbing layers, applied in metal processing equipment, welding equipment, manufacturing tools, etc., can solve the problems of micro-deformation, inability to achieve punching, and inability to achieve continuous punching of micro-parts, and achieves a high level of punching accuracy. Effect

Active Publication Date: 2019-08-02
江阴智产汇知识产权运营有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method can only cause micro-deformation of the parts and cannot achieve the punching often required in production, and it is difficult to realize the continuous processing of micro-parts
Chinese patent ZL201510048737.5 proposes a micro-punching device based on laser shock waves. An absorbing layer, a mask and a water film are placed on the metal film in sequence. The mask hole is similar in shape to the cutting hole of the die insert. The water-passing film is irradiated on the mask and the absorbing layer respectively. Under the action of the specific contour shock wave and the cut-off die hole of the die insert, the metal film and the top block move downward at the same time, and the metal film is cut off. At the same time, a specific Shaped flat micro-parts, but this invention cannot realize continuous blanking of micro-parts

Method used

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  • A method and device for continuous punching of micro parts
  • A method and device for continuous punching of micro parts
  • A method and device for continuous punching of micro parts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031]The pulse width of the laser beam 1 described in this example is 10 ns, the pulse energy is 5 J, and the spot diameter after focusing is 2 mm; the absorbing layer 3 is a black polyester tape with a thickness of 100 μm; the metal film 5 is an A304 stainless steel film with a thickness of 60 μm, The thickness of the glue is 10 μm; the material of the top block 6 is 20Cr steel, the distance between the lower surface of the top block and the upper surface of the pressure block is 80 μm; the pre-tightening force provided by the spring 7 is 1.2N, the material of the gasket 8 is stainless steel F1, the gasket The thickness of the die is 75 μm, the material of the briquetting block 9 is 20Cr steel, the material of the die 10 is T7 steel, the shape of the cutting edge of the die is circular, and the diameter is 200 μm.

[0032] After adopting a method and device for continuous blanking of micro parts of the present invention, large quantities of A304 stainless steel circular micro...

Embodiment 2

[0034] The pulse width of the laser beam 1 described in this example is 10 ns, the pulse energy is 5 J, and the spot diameter after focusing is 3 mm; the absorbing layer 3 is a black polyester tape with a thickness of 150 μm; the metal film 5 is a H62 brass film with a thickness of 100 μm , the thickness of the glue is 10 μm; the material of the top block 6 is 20Cr steel, the distance between the lower surface of the top block and the upper surface of the pressure block is 120 μm; the preload force provided by the spring 7 is 1.2N, the material of the gasket 8 is stainless steel F1, the pad The thickness of the sheet is 115 μm, the material of the pressing block 9 is 20Cr steel, the material of the die 10 is T7 steel, the shape of the cutting edge of the die is a gear, and the outer diameter is 1 mm.

[0035] After adopting a method and device for continuous blanking of micro parts of the present invention, a large number of H62 brass micro gears with an outer diameter of 1 mm ...

Embodiment 3

[0037] The pulse width of the laser beam 1 described in this example is 10 ns, the pulse energy is 5 J, and the spot diameter after focusing is 4 mm; the absorbing layer 3 is a black polyester tape with a thickness of 200 μm; the metal film 5 is a T2 copper film with a thickness of 150 μm, The thickness of the glue is 10 μm; the material of the top block 6 is 20Cr steel, the distance between the lower surface of the top block and the upper surface of the pressure block is 170 μm; the pre-tightening force provided by the spring 7 is 1.2N, the material of the gasket 8 is stainless steel F1, the gasket The thickness of the die is 165 μm; the material of the briquetting block 9 is 20Cr steel, the material of the die 10 is T7 steel, and the shape of the cutting edge of the die is a square with a side length of 300 μm.

[0038] After adopting a method and device for continuous blanking of micro parts of the present invention, a large number of T2 red copper square micro parts with a ...

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Abstract

The invention provides a micro-part continuous blanking method and device. Laser shock waves induced by high-power-density, nanosecond-level and short-pulse laser irradiation are adopted as a blankingtool and meanwhile are adopted as edge pressing force to act on a metal film, and zero-clearance high-precision blanking of micro-parts is achieved; and the distance t between an ejector block and apressing block is set to be between the thickness t2 of the metal film and the thickness t1 of a strap, that is, t is larger than t2 and smaller than t1. It can be guaranteed that after blanking is finished, the micro-parts are separated from the metal film, but an absorption layer of a portion bearing the laser shock function is still not separated from the strap, therefore, the micro-parts stilladhere to the strap after blanking is finished, and continuous blanking of the micro-parts can be achieved under the action of a conveying mechanism.

Description

technical field [0001] The invention relates to the field of micro-manufacturing, in particular to a method and device for continuous punching of micro-parts. Background technique [0002] Micro-Electro-Mechanical System (MEMS, Micro-Electro-Mechanical System), developed on the basis of microelectronics technology, integrates technologies such as lithography, corrosion, thin film, LIGA, silicon micromachining, non-silicon micromachining and precision machining Manufactured high-tech electromechanical devices. Among them, micro parts are the core of MEMS. In order to ensure the high reliability and high precision of the MEMS system, various micro parts that make up the system need to have the characteristics of good mechanical properties, high shape and dimensional accuracy, and in industrial applications, micro parts need to achieve large Continuous batch production. [0003] Chinese patent ZL201010505882.9 proposes a method of using laser shock waves to load flyers and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K26/00B23K26/18B23K26/70
CPCB23K26/00B23K26/18B23K26/702
Inventor 戴峰泽张紫东
Owner 江阴智产汇知识产权运营有限公司