CN212264659U

CN212264659U - High-efficiency milling cutter

Info

Publication number: CN212264659U
Application number: CN202020784170.4U
Authority: CN
Inventors: 孙宝泉
Original assignee: Kunshan Chaoye Precision Cutting Tool Co ltd
Current assignee: Kunshan Chaoye Precision Cutting Tool Co ltd
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2021-01-01
Anticipated expiration: 2030-05-13

Abstract

The utility model provides a high-efficient milling cutter, including crossing first spiral slot and the second spiral slot that sets up, first spiral slot forms the all sword of arranging the setting, second spiral slot is the chip groove, a set of all sword of arranging is all sword group on the cross-section of cutter body, the adjacent all sword height of all sword group is equipped with the difference in height, and this milling cutter sets up the difference in height through the height with adjacent all sword group, and during milling, when processing same circuit board, lower all sword contacts the circuit board earlier, and milling cutter pivoted in-process, higher all sword can cross the benefit and mill, need milling cutter milling circuit board once promptly, can reach preset the precision, reduces a stroke, improves machining efficiency.

Description

High-efficiency milling cutter

Technical Field

The utility model relates to a cutter field especially relates to high-efficient milling cutter.

Background

The edge of the existing circuit board milling cutter is usually made of tungsten steel, the milling cutter used by the PCB is called a routing cutter, and the milling cutter is used in the post process (or outer frame pressing and fishing), and the main purpose is to cut the manufactured circuit board into individual PCS or SPNL by using the cutter and then deliver the PCS or SPNL to customers, namely the final product size required by the customers.

And generally includes two kinds of sword types, single spiral groove milling cutter and bispin groove milling cutter, and the groove of single spiral groove milling cutter is used for cutting and chip removal, and two helicla flutes of bispin groove milling cutter are one to be used for the chip removal, and another then forms week sword, as patent publication number is: CN 2902543Y's utility model discloses a printed circuit board milling cutter, its structure is then the milling cutter of traditional left right turning groove, when this kind of cutter body is under construction, if handle a square circuit board, need mill the surface with man-hour, when reaching the predetermined requirement, as shown in fig. 1 and fig. 2, it is once to rough milling from a left side to the right side usually, from the finish milling that returns once again, in order to guarantee to reach and predetermine the precision, process time then increases, and will realize that once processing reaches and predetermine the progress, be the operative employee who needs the experience very abundant and control the degree of milling, the realization rate is lower.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a high-efficient milling cutter, including crossing first spiral slot and the second spiral slot that sets up, first spiral slot forms the all edges of arranging the setting, second spiral slot is the chip groove, a set of all edges of arranging are all edge groups on the cross-section of cutter body, all edge groups's adjacent all edge height is equipped with the difference in height.

Preferably, the angles from the peripheral edges to the circle center of the cutter body are non-uniformly arranged.

Preferably, the height difference is 0.05mm to 0.2 mm.

Preferably, the peripheral edge comprises a leading edge and a first trailing edge.

Preferably, the peripheral edge includes a leading edge, a first trailing edge, and a second trailing edge.

The efficient milling cutter comprises a spiral groove, wherein the spiral groove is a cutting groove, and a peripheral edge is arranged on the side edge of the cutting groove.

Preferably, the number of the peripheral edges of the cutter body is 6, and the angles from the different peripheral edges to the center of the section of the cutter body are 30 degrees, 40 degrees, 60 degrees, 100 degrees, 80 degrees and 50 degrees.

The utility model provides a high-efficient milling cutter has following beneficial effect: this milling cutter sets up the difference in height through the height with adjacent all sword groups, and during milling, when processing same circuit board, lower all sword contacted the circuit board earlier, milling cutter pivoted in-process, higher all sword can cross the benefit and mill, need milling cutter mill the circuit board promptly once, can reach preset precision, reduces a stroke, improves machining efficiency.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.

FIG. 1 is a schematic diagram of a prior art milling process;

FIG. 2 is a cross-sectional view of a prior art milling process;

fig. 3 is a schematic view of the milling cutter of the present invention;

fig. 4 is a cross-sectional view of the milling cutter of the present invention;

FIG. 5 is a sectional view of embodiment 2;

FIG. 6 is a schematic view of the milling process of the present invention

Wherein, 1, a peripheral edge; 2. a second spiral groove; 3. a first spiral groove.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Example 1

As shown in fig. 3, the utility model provides a high-efficient milling cutter, including crossing setting up first spiral groove 3 and second spiral groove 2, first spiral groove 3 forms the week sword 1 of arranging the setting, second spiral groove 2 is the chip groove, a set of week sword 1 of arranging on the cross-section of cutter body is week sword 1 group, the adjacent week sword 1 sword height of week sword 1 group is equipped with the difference in height. The first spiral groove 3 and the second spiral groove 2 in the present application may be arbitrarily configured to be left-handed or right-handed, and the first or second spiral groove 2 is not limited to chip discharge or to the peripheral edge 1. It should be noted that the cross section of the cutter body in the present application means that as shown in fig. 4, the same set of peripheral edges 1 obtained by cutting the axial cross section of the cutter body forms a set of peripheral edges 1, and the heights of the adjacent peripheral edges 1 of the set of peripheral edges 1 are provided with a height difference, that is, taking a milling cutter with a diameter of 2.0mm as an example, the heights of the adjacent peripheral edges 1 of the same set of peripheral edges 1 can be provided as 0.4mm and 0.5mm, but the cutter is not limited to the example of the present embodiment, and the height difference of the peripheral edges 1 described in the present application can be applied to a milling cutter with a conventional diameter of 1-12 mm.

It is to be noted that: the peripheral milling cutter edge 1 of the present embodiment may be of the type of a leading edge and a first trailing edge, or of the type of a leading edge, a first trailing edge, and a second trailing edge, and is not limited to the type of milling cutter.

When the cutting edge through above-mentioned setting is processing PCB board plane, the cutter body walks once along the PCB board, can reach and predetermine the precision, and its principle is: in the milling process, the surfaces of the plate bodies are milled and processed firstly and secondly by the higher peripheral edge 1 and the lower peripheral edge 1, namely the original process of repeatedly milling twice back and forth is realized, the stroke is only once, and the processing efficiency is greatly improved.

Example 2

The milling cutter disclosed in the embodiment comprises a first spiral groove 3 and a second spiral groove 2 which are arranged in an intersecting manner, wherein the first spiral groove 3 forms a circumferential edge 1 which is arranged, the second spiral groove 2 is a chip groove, a group of circumferential edges 1 which are arranged on the cross section of the cutter body are a group of circumferential edges 1, the height of the adjacent circumferential edges 1 of the group of circumferential edges 1 is different from the height of the adjacent circumferential edges 1, and the angles from the circumferential edges 1 to the circle center of the cutter body are not uniformly arranged.

In this embodiment, as shown in fig. 5, for a milling cutter with 6 blades and a diameter of 2.0mm as an example, the peripheral blades 1 may be arranged such that the clamping legs at a distance from the center of the circle are respectively 30 °, 40 °, 60 °, 100 °, 80 °, and 50 °

Example 3

In this embodiment, not shown, for example, a milling cutter with 6 blades and a diameter of 1.0 is used, and the peripheral blades 1 may be arranged such that the clamping legs at distances from the center of the circle are respectively 15 °, 30 °, 40 °, 110 °, and 150 °

The above-described embodiments are not limited.

In this embodiment, for example, as shown in fig. 6, when the groove body on the circuit board is machined to the end, the milling process of the arc-shaped part generally only uses the range of the peripheral cutting edge 1 of about 120 degrees, so when the milling cutter which is uniformly arranged is used, only 2 peripheral cutting edges 1 at most can contact the circuit board, and when the milling cutter in this embodiment 3 is used, the peripheral cutting edges 1 corresponding to 15 °, 30 ° and 40 ° are used in the arc-shaped process when the milling cutter moves to the arc-shaped position, and according to the requirement of the process, the height of the corresponding peripheral cutting edge 1 can be set, and the effects of rough milling and finish milling can be achieved.

Example 4

The high-efficient milling cutter of this embodiment is single-turn milling cutter, including the left-hand thread groove, the seat is revolved the groove and is the chip groove, the cutter body tip is equipped with the cutting edge, the highly be greater than the rear portion height of cutting edge tip, what be directed against is single-turn milling cutter, the blade that sets gradually. The peripheral cutting edges 1 of the single-turn milling cutter are arranged spirally along the cutter body, so that the peripheral cutting edges 1 can be gradually reduced from the position of the cutter shank to the position of the cutter head.

Various modifications to the embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The efficient milling cutter is characterized in that a group of peripheral edges arranged on the cross section of a cutter body are peripheral edge groups, and adjacent peripheral edge heights of the peripheral edge groups are provided with height differences.

2. The high efficiency milling cutter according to claim 1, wherein the angles of the peripheral edges to the center of the cutter body are non-uniformly arranged.

3. The high efficiency milling cutter according to claim 1, wherein the height difference is 0.05mm to 0.2 mm.

4. The high efficiency milling cutter according to claim 1, wherein the peripheral edge comprises a leading edge and a first trailing edge.

5. The high efficiency milling cutter according to claim 1, wherein the peripheral edge comprises a leading edge, a first trailing edge, and a second trailing edge.