Processing method of lens cone inner wall die

A processing method and lens barrel technology, which can be applied to electric processing equipment, metal processing equipment, manufacturing tools, etc., can solve the problems of high cost, high cost, waste of mold base, etc., and achieve material cost saving, consistent effect and low cost. Effect

CN103128386BActive Publication Date: 2015-07-15SHENZHEN ZHAOWEI MACHINERY&ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2015-07-15

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Abstract

The invention relates to a processing method of a lens cone inner wall die. The processing method of the lens cone inner wall die comprises that six inclined squeeze blocks which are matched with a six prismoid in a sliding mode through clamping grooves are processed, and a cylindrical insert embryo combination with a supporting platform is spliced by the six inclined squeeze blocks and the six prismoid; the lower portion of the cylindrical insert embryo combination is hooped by a fixture; the cylindrical insert embryo combination is fixed with the fixture; a plurality of copper electrodes which have the same shape with parts of the inner wall of a lens cone are processed by using a three-axis numerical controlled machine; and the plurality of copper electrodes are aimed at the upper portion of the cylindrical insert embryo combination in a one-by-one mode, and the lens cone inner wall die which matched with the inner wall of the lens cone is processed by using electric sparkling discharge. Due to the fact that the copper electrodes are processed through the method of three-axis numerical controlled machine rotary process and then the lens cone inner wall die is processed through an electric sparkling discharge method, compared with a lens cone inner wall die processed by a five-axis numerical controlled machine, the processing method of the lens cone inner wall die has the advantage of being low in cost.
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Description

Technical field

[0001] The invention belongs to the technical field of mold design and manufacture, and relates to a mold processing method for the inner wall of a lens barrel.

Background technique

[0002] The lens of a digital camera can be stretched, and the lens barrel is a mechanism that supports and maintains a set of spherical and aspheric lenses to achieve imaging. Through the adjustment of several moving parts, the rotational movement in the circumferential direction is converted into axial movement to ensure the accuracy of the camera. Focusing, forming an ideal imaging quality, and realizing the telescopic zoom function of the lens barrel, the core parts are the irregular three-dimensional spiral zoom groove set on the inner wall of the lens barrel injection molded part and the sliding boss set on the outer wall of the lens barrel. The sliding boss of the barrel is slidably matched with the other zoom grooves. For the molds that form these irregular three-dime...

Examples

Embodiment

[0039] Such as Figure 1-7 As shown, the present invention provides a method for processing a lens barrel inner wall mold, the method comprising:

[0040] S1: A hexagonal platform 11 is processed by wire cutting according to the size requirements. The upper end of the hexagonal platform 11 is thin and the lower end is thick, and there is a vertical convex rail 111 in the center of each side of the hexagonal platform. The cross-sectional shape of the protruding rail 111 is trapezoidal, the outer side close to the protruding rail 111 is the long side of the trapezoid, and the inner side close to the protruding rail 111 is the short side of the trapezoid.

[0041] S2: According to the size requirements, two cylindrical mold blanks 12 with pallets are first processed by CNC machine tools. The cylindrical mold blanks include a cylindrical main body 121 and a disc-shaped pallet 122. The diameter of the cylindrical main body 121 is It is the same diameter as the cylindrical insert b...