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Auxiliary tool for manufacturing PTFE gasket and method for manufacturing same

A technology of auxiliary tools and gaskets, which is applied in printed circuit manufacturing, electrical components, printed circuit dielectrics, etc., can solve the problems of high mold cost, many burrs on the edge of gaskets, low gasket accuracy, etc., to reduce processing costs, protect The effect of the platform

Active Publication Date: 2018-07-06
JIANGMEN SUNTAK CIRCUIT TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The PTFE gasket made by the method of milling cutter forming has many burrs on the edge of the gasket, the dimensional tolerance is + / -0.1MM, the precision of the gasket is low, and the PTFE gasket of too small size cannot be made by the method of milling cutter forming. To obtain the required gaskets, in the face of the increasingly refined circuit board industry, the method of milling cutter forming has gradually been replaced
The PTFE gasket is made by die punching. Due to the high cost of the mold, the cost is very high for the processing of small batches or sample plates.

Method used

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  • Auxiliary tool for manufacturing PTFE gasket and method for manufacturing same

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Embodiment

[0024] refer to figure 1 , the invention provides an auxiliary tool for making PTFE gaskets, including a flat plate, the flat plate is a copper clad laminate, the thickness of the copper clad laminate is 0.71mm-1.0mm, four optical positioning patterns 1, four optical alignment The hole 2 and several air guide holes 3, the optical alignment hole 2 and the optical positioning pattern 1 are arranged adjacent to each other, and all of them adopt the anti-reverse anti-fooling design. The optical alignment pattern 1 is ring-shaped with an outer diameter of 3.2mm, and the optical alignment hole 2 has an aperture diameter of 0.8mm-1.2mm. Also be provided with some air guide holes 3 on the flat plate, when the air guide holes 3 are processed, the flatness of the air guide holes 3 should be guaranteed. The air guide holes 3 are arranged on the auxiliary tool corresponding to the air suction holes of the laser drilling equipment. In this embodiment, the air guide holes 3 are evenly dist...

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Abstract

The invention relates to the field of printed circuit board manufacturing, in particular to an auxiliary tool for manufacturing a PTFE gasket and a method for manufacturing the same. Through manufacturing the auxiliary tool, a PTFE plate is adhered on the auxiliary tool for laser cutting, the small-sized gasket can be machined, the PTFE plate with the thickness ranging from 0.5mm to 1.6mm can be machined, the outer edge of the manufactured PTFE gasket is burr-free, and the dimensional tolerance is ensured to be within a range of + / -0.05 mm. Moreover, the auxiliary tool is a universal tool, thePTFE plate can be positioned by means of optical alignment holes formed in the auxiliary tool, when the PTFE gasket is manufactured, only the corresponding drilling belt of the PTFE gasket needs to be changed without corresponding die sinking independently, the auxiliary tool is suitable for size requirements of various kinds of PTFE gaskets, and can be reused. Meanwhile, the auxiliary tool has the function of protecting a platform of a laser drilling machine, and greatly reduces the processing cost of gasket production.

Description

technical field [0001] The invention relates to the field of printed circuit board manufacture, in particular to an auxiliary tool for making a PTFE gasket and a method for making the gasket. Background technique [0002] PTFE gasket is also called polytetrafluoroethylene gasket or Teflon (Teflon) gasket, which has good mechanical strength between -100°C and 100°C, and also has good characteristics such as corrosion resistance, aging resistance and non-conductivity. Because of its high corrosion resistance, stable physical properties, high and low temperature resistance, etc., it also achieves good sealing performance, and is widely used in petroleum, chemical, pharmaceutical, electric power, and steel industries. Usually PTFE gaskets are machined or cut from PTFE rods, tubes, and plates. The types of PTFE gaskets include flat gaskets, V-shaped gaskets, piston rings, and ball valve gaskets. [0003] At present, in the lamination process of producing stepped circuit boards, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K3/00
CPCH05K3/0032H05K2201/015H05K2203/107H05K2203/167
Inventor 张国城姜雪飞彭卫红宋清
Owner JIANGMEN SUNTAK CIRCUIT TECH
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