Large-bevel-edge 2.5 D cover plate machining device and machining method

Abstract

The invention provides a large-bevel-edge 2.5 D cover plate machining device and method, and relates to the field of glass machining and manufacturing, the large-bevel-edge 2.5 D cover plate machining device comprises a cover plate fixing mechanism, a first grinding wheel rod and a second grinding wheel rod, the first grinding wheel rod is provided with a first cutting edge face, and the first cutting edge face is a first conical face with the large upper portion and the small lower portion; the second grinding wheel rod is provided with a second cutting edge surface and a third cutting edge surface which are consistent in shape, the second cutting edge surface comprises a second conical surface, a third conical surface, a fourth conical surface, a cylindrical surface and a fifth conical surface which are sequentially connected from top to bottom, and the roughness of the first cutting edge surface, the second cutting edge surface and the third cutting edge surface is sequentially reduced. A large bevel edge is machined at a time through the first cutting edge face, a contour is formed at the upper position and the lower position of the large bevel edge at a time through the second cutting edge face, and finally the contour of a rough product is finely trimmed through the third cutting edge face, so that the cover plate is obtained through complete forming, and beveling trimming is not needed. The processing yield and the processing efficiency are higher, and the standard reaching rate of the product size and the processing precision are improved.

Description

technical field [0001] The invention relates to the field of machining tools and methods, in particular to a processing device and a processing method for a 2.5D cover plate with a large bevel. Background technique [0002] The existing vehicle glass is generally a 2D structure, and its processing and manufacturing process is mature, and various control parameters in processing such as size compliance rate, processing stability, yield, and efficiency are relatively high. With the development of society and the improvement of people's living standards, there are also new requirements for vehicle glass. In order to make the vehicle glass more technological and fashionable, the edge design of the vehicle glass can be carried out to make it favored by people. Therefore, , There is a demand for processing 2.5D structure of vehicle glass. [0003] In the prior art, glass is processed with a 2.5D profile (profile refers to the other part of the glass except for the two large surfa...

AI Technical Summary

Problems solved by technology

However, the thickness of glass processed in 2.5D according to the above process is usually only 0.5mm-1mm, and the bevel angle and bevel area of ​​the glass are small, while the thickness of vehicle glass is thicker, even reaching 5mm and above. The bevel angle and hypotenuse area are larger

If the traditional 2.5D processing method is used for 2.5D processing of vehicle glass, the following problems will occur: 1. The precision is not enough, because the larger the bevel is, the more difficult it is to process, the commonly used grinding wheel rod is only suitable for grinding 0.5mm-1mm Beveled edge, weak grinding ability, and the grinding pin does not move the vehicle glass. It needs multi-layer reciprocating grinding pins to complete the processing of the product shape. The grinding wheel rod is easy to wear and has a short life. Small, 2.5D processing has more processing positions, resulting in more processing parts of the tool, which makes it longer in length and larger in swing, and the processing of curved surfaces and chamfering needs to be separated, so each processing part needs to be Debugging, so that the machine is repeatedly debugged, and the debugging is complicated and the stability is poor, resulting in low product size compliance rate, size yield rate, processing stability, etc., which makes the contour control and appearance of the product such as grinding wheel line, burnt edge, sand avalanche and other appearance problems In a state of out of control; 2. Due to the weak grinding ability of the commonly used grinding wheel rods and frequent replacement, it takes a long time and low efficiency when processing vehicle-mounted glass

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