CN221064575U - Improved structure of milling cutter blade surface - Google Patents

Abstract

The utility model provides an improved structure of a milling cutter cutting edge surface, which is applied to a cutting edge of a preset milling cutter, wherein a plurality of spiral cutting edge parts are arranged on the cutting edge, a plurality of cutting edges are respectively formed on the plurality of spiral cutting edge parts, the cutting edge comprises a front cutting edge surface, a first cutting surface and a second cutting surface, a rear cutting edge surface which is intersected with the second cutting surface to form a chip groove is extended on one side of the first cutting surface, the chip groove can be used for expanding the chip removing space of the cutting edge, so that the milling operation smoothness of the preset milling cutter is improved, and the problem that the accuracy of the preset circuit board is reduced due to poor chip removing of the preset milling cutter in milling processing is avoided.

Description

Improved structure of milling cutter blade surface

Technical Field

The utility model relates to an improved structure of a cutting edge surface of a milling cutter, in particular to a structure which can improve the milling operation smoothness of the preset milling cutter by means of a plurality of cutting edges arranged on the cutting edge of the preset milling cutter and chip removal grooves formed on the cutting edges to enlarge the chip removal space of the cutting edge, so that the problem that the accuracy of the milling processing of a preset circuit board is reduced due to poor chip removal of the preset milling cutter during the milling processing is solved.

Background

With the vigorous development of the science and technology industry, many appliances and products used in the living environment are made into science and technology and electric appliances, and people's life is filled with science and technology products at any time, such as various electronic products of computers, mobile phones, televisions and the like, and most of the electronic products are provided with printed circuit boards (PCBs, printed circuit board) for controlling the operation and the operation of the electronic products, and the most common printed circuit boards are flexible circuit boards, mobile phone boards, ball grid array Boards (BGAs), packaging substrates of DDR2 circuit boards and BOC (WBGA), traditional printed circuit boards and the like; the circuit boards are arranged in coordination with the memories, and the pin pitches of the memories are different because the number and the number of pins of the memories are different, the memories are small in size and the number of pins are large.

For processing various circuit boards, the operation of processing by using a milling cutter is more important, however, the defect of chip removal is often an important cause of damage to the cutter on the milling cutter, and the cutter body of the milling cutter is more easily damaged by rebound caused by the defect of chip removal during processing and cutting, so how to provide the chip removal efficiency and smoothness of the cutting edge and the cutter body of the milling cutter is a key point to be studied and improved in urgent need of the industry.

Disclosure of utility model

Accordingly, in view of the above-mentioned problems and disadvantages, it is a primary object of the present utility model to provide an improved structure for a cutting edge face of a milling cutter.

The utility model provides an improved structure of a milling cutter cutting face, which is applied to a cutting edge of a preset milling cutter, wherein a plurality of spiral cutting edge parts are arranged on the cutting edge, a plurality of cutting edges are respectively formed on the plurality of spiral cutting edge parts, the cutting edge comprises a front cutting face, a first cutting face and a second cutting face, and a rear cutting face which is intersected with the second cutting face to form a chip removal groove is extended on one side of the first cutting face.

The chip breaker is different from the traditional chip breaker in V-shaped section, is designed into a U-shaped section, and is provided with a U-shaped flat bottom groove on the bottom surface, so that the chip breaker has larger chip breaking space than the traditional chip breaker with V-shaped section, and can more effectively remove chips and break chips, and further improves the chip removal capability during processing.

Wherein a plurality of grooves are concavely arranged between the plurality of spiral blade parts on the blade.

Wherein a cutting angle is formed between the front cutting surface and the first cutting surface of the cutting blade.

According to the utility model, the chip removing space of the cutting edge can be enlarged by the chip removing groove, so that the milling operation smoothness of the preset milling cutter is improved, and the problem that the accuracy of the preset circuit board is reduced due to poor chip removing of the preset milling cutter during milling processing is solved.

Drawings

Figure 1 is a schematic cross-sectional view of a facet of the improved structure of the facet of the milling cutter of the present utility model.

Fig. 2 is a schematic cross-sectional view of a chip breaker of the improved structure of the cutting edge face of the milling cutter of the present utility model.

Fig. 3 is a schematic diagram of the chip breaker structure of the improved structure of the cutting edge surface of the milling cutter.

Reference numerals illustrate: 1-cutting edge; 11-helical blade portion; 110-grooves; 111-cutting edge; 112-chip breaker; 1111—a leading edge face; 1112-a first cutting surface; 1113-a second cutting face; 1114-cutting angle; 1115-junk slots; 1116-trailing edge face.

Detailed Description

Referring to fig. 1 to 3, a cutting face cross-sectional view, a chip breaker cross-sectional view and a chip breaker structure of the improved structure of the milling cutter cutting face of the present utility model are shown, which are mainly applied to a cutting edge 1 of a preset milling cutter (not shown), a plurality of spiral cutting edges 11 are arranged on the cutting edge 1, grooves 110 for assisting chip removal are respectively arranged between the plurality of spiral cutting edges 11, a plurality of cutting edges 111 are respectively formed on the plurality of spiral cutting edges 11, a chip breaker 112 is formed between two adjacent cutting edges 111 in an intersecting manner, the cutting edges 111 comprise a front cutting face 1111, a first cutting face 1112 and a second cutting face 1113, a cutting angle 1114 is formed between the front cutting face 1111 and the first cutting face 1112 in an intersecting manner, and a rear face 1116 intersecting with the second cutting face 1113 to form a chip removal groove 1115 extends on one side of the first cutting face 1112.

In practical application, the improved structure of the milling cutter blade surface of the present utility model performs milling processing on a preset circuit board (not shown) through the plurality of spiral blade portions 11 of the blade 1 provided on the preset milling cutter, and each cutting blade 111 on the plurality of spiral blade portions 11 can enhance the wear resistance of the cutting blade 111 during milling processing through the protrusion of the first cutting surface 1112 and avoid the problem of excessive size change during milling the preset circuit board caused by excessive wear of the cutting blade 111, and the chip removal groove 1115 formed between the rear blade surface 1116 extending from one side of the first cutting surface 1112 and the second cutting surface 1113 can cooperate with each groove 110 to perform chip removal action during milling processing of the blade 1, so as to expand the chip removal space of the blade 1, thereby improving the smoothness of milling operation of the preset milling cutter, and further enhancing the durability of the blade 1 by further discharging heat energy generated during milling processing of the preset milling cutter blade, and further improving the durability of the chip removal space of the blade 1, thereby improving the smoothness of milling processing and durability of the milling processing.

The chip removing space of the blade 1 is further enlarged by the formation of the chip removing groove 1115, so that the problem that the accuracy of the preset circuit board is reduced due to poor chip removing of the preset milling cutter during milling processing can be avoided, the chip breaking grooves 112 respectively arranged between two adjacent cutting blades 111 of the plurality of cutting blades 111 are V-shaped sections different from the traditional chip breaking grooves, the chip breaking grooves 112 are designed into a U-shaped section (as shown in fig. 3), a U-shaped flat bottom groove is arranged, the bottom of the U-shaped flat bottom groove is relatively flat, and the two sides of the U-shaped flat bottom groove are smoothly connected with the bottom of the U-shaped flat bottom groove, so that the chip breaking groove has larger chip breaking space compared with the chip breaking grooves with the traditional V-shaped section, chip removing and chip breaking can be more powerful, and the chip removing capacity during processing can be further improved.

The utility model has the following advantages:

The chip-removing groove 1115 formed between the rear edge face 1116 and the second cutting face 1113 on the cutting edge 111 can enlarge the chip-removing space of the cutting edge 1, so as to improve the smoothness of the milling operation of the preset milling cutter, and avoid the problem of poor chip removal of the preset milling cutter during milling and further reduced accuracy of the preset circuit board during milling.

And secondly, the convex arrangement of the first cutting surface 1112 of each cutting blade 111 on the plurality of spiral blade parts 11 improves the abrasion resistance of the cutting blade 111 during milling, so as to avoid the problem of overlarge size change during milling the preset circuit board caused by overlarge abrasion of the cutting blade 111, reduce friction during milling and cooperate with the excessive space of the junk slot 1115 to dissipate heat, and further achieve the effect of prolonging the service life of products.

And thirdly, the chip breaker 112 is a V-shaped section different from the traditional chip breaker, is designed into a U-shaped section, and is provided with a U-shaped flat bottom groove at the bottom surface of the chip breaker 112, so that compared with the traditional chip breaker with the V-shaped section, the chip breaker has larger chip breaking space, can more effectively remove and break chips, and further improves the chip removal capability during processing.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, so that the simple modification and equivalent structural changes described in the specification and drawings are all included in the scope of the utility model.

Claims (5)

1. An improved structure of a milling cutter blade surface is characterized in that: the cutting edge comprises a front cutting face, a first cutting face and a second cutting face, and a rear cutting face which is intersected with the second cutting face to form a chip groove is extended on one side of the first cutting face.

2. The improved structure of the edge surface of the milling cutter according to claim 1, wherein: a plurality of grooves are concavely arranged between the plurality of spiral blade parts on the blade.

3. The improved structure of the edge surface of the milling cutter according to claim 1, wherein: a cutting angle is formed by intersecting the front cutting surface and the first cutting surface on the cutting edge.

4. The improved structure of the edge surface of the milling cutter according to claim 1, wherein: a chip breaker is formed between two adjacent cutting edges of the plurality of cutting edges.

5. The improved structure of the edge surface of the milling cutter as claimed in claim 4, wherein: the chip breaker groove is a U-shaped flat bottom groove.