CN210059931U - Grinding tool steel composite milling cutter - Google Patents

Grinding tool steel composite milling cutter Download PDF

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Publication number
CN210059931U
CN210059931U CN201920661284.7U CN201920661284U CN210059931U CN 210059931 U CN210059931 U CN 210059931U CN 201920661284 U CN201920661284 U CN 201920661284U CN 210059931 U CN210059931 U CN 210059931U
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China
Prior art keywords
milling cutter
core thickness
cutter
spiral
tool steel
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CN201920661284.7U
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Chinese (zh)
Inventor
时建波
李�浩
杜灿
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CHONGQING DBR DIAMOND TOOLS Co Ltd
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CHONGQING DBR DIAMOND TOOLS Co Ltd
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Abstract

The utility model discloses a compound milling cutter of grinding apparatus steel, including cutter arbor and cutter body, its characterized in that: a spiral cutting edge is arranged on the outer wall of the cutter body; an end blade is arranged on the end surface of the cutter body; the number of the spiral cutting edges and the number of the end edges are both 6 edges; the cutter body comprises a first core thickness and a second core thickness; the first core thickness is the diameter of the rest part of the cutter after being processed by a five-axis grinding machine; the second core thickness is the diameter of an inscribed circle of the tooth profile on the end face of the milling cutter; the circle centers of the first core thickness and the second core thickness are both positioned on a central shaft of the milling cutter; a spiral included angle a is formed between each two adjacent spiral cutting edges and the axis of the milling cutter; the tooth aligning angles of the spiral included angles a are the same; the tooth aligning angle of the spiral included angle a is 55 degrees, 60 degrees and 65 degrees; a groove-shaped angle b is formed between each two adjacent end edges and the axis of the milling cutter; the groove angle b is 60 degrees; the diameter of the first core thickness is 55% -60% of that of the milling cutter; the second core thickness has a diameter of 80% of the milling cutter.

Description

Grinding tool steel composite milling cutter
Technical Field
The invention relates to a cutter, in particular to a grinding tool steel composite milling cutter.
Background
A milling cutter is a rotating tool with one or more cutter teeth for milling. When in work, each cutter tooth cuts off the allowance of the workpiece in sequence and intermittently. The milling cutter is mainly used for processing planes, steps, grooves, formed surfaces, cut-off workpieces and the like on a milling machine.
In machining, the traditional hard alloy milling cutter has small screw, short service life of a machining die, easy generation of tool shaking, poor cutting effect and unsatisfactory cutting effect.
In view of the foregoing, there is a need in the art for a new milling cutter.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a grinding tool steel composite milling cutter.
The technical scheme adopted for achieving the purpose of the invention is that the grinding tool steel composite milling cutter comprises a cutter rod and a cutter body, and is characterized in that: and a spiral cutting edge is arranged on the outer wall of the cutter body.
The end face of the cutter body is provided with an end blade.
The number of the spiral cutting edges and the number of the end edges are both 6.
The cutter body includes a first core thickness and a second core thickness.
The first core thickness diameter is less than the second core thickness.
The circle centers of the first core thickness and the second core thickness are both positioned on the central shaft of the milling cutter.
Further, a spiral included angle a is formed between each two adjacent spiral cutting edges and the axis of the milling cutter.
The tooth aligning angles of the spiral included angles a are the same.
Further, the tooth-to-tooth angle of the spiral included angle a is 55 °, 60 ° and 65 °.
Further, a flute angle b is formed between the adjacent two end edges and the axis of the milling cutter. The slot angle b is 60 °.
Further, the diameter of the first core thickness is 55% -60% of that of the milling cutter.
Further, the second core thickness has a diameter of 80% of the milling cutter.
Furthermore, the cutter bar and the cutter body are both made of hard alloy materials.
Furthermore, the spiral cutting edge, the end edge and the cutter groove are all formed by grinding diamond.
The technical effects of the present invention are undoubted, and the present invention has the following advantages:
1) the milling cutter adopts two cores with thick cores, so that the rigidity of the milling cutter can be ensured, and the sharpness of the cutting edge can be ensured;
2) the angle of the large spiral groove with the angle of 55 degrees can ensure that the cutting effect of the milling cutter is better and the cutter is sharper;
3) the unequal helix angles adopted by the milling cutter avoid resonance generated in the processing process of the milling cutter, and the stability of the milling cutter is improved.
Drawings
Fig. 1 is a schematic structural view of a milling cutter in embodiment 1;
fig. 2 is a schematic end view of the milling cutter of fig. 1.
In the figure: the tool holder 1, the tool body 2, the helical cutting edge 201, the end edge 202, the first core thickness 203 and the second core thickness 204.
Detailed Description
The present invention is further illustrated by the following examples, but it should not be construed that the scope of the above-described subject matter is limited to the following examples. Various substitutions and alterations can be made without departing from the technical idea of the invention and the scope of the invention is covered by the present invention according to the common technical knowledge and the conventional means in the field.
Example 1:
as shown in fig. 1, a compound milling cutter of grinding tool steel comprises a cutter bar 1 and a cutter body 2, and is characterized in that: the outer wall of the cutter body 2 is provided with a spiral cutting edge 201.
Two adjacent spiral cutting edges 201 form a spiral included angle a with the axis of the milling cutter.
The tooth aligning angles of the spiral included angles a are the same.
The tooth aligning angle of the spiral included angle a is 55 degrees, 60 degrees and 65 degrees.
An end edge 202 is arranged on the end surface of the cutter body 2.
A flute angle b is formed between two adjacent end edges 202 and the axis of the milling cutter. The slot angle b is 60 °.
The number of the spiral cutting edges 201 and the end edges 202 is 6.
As shown in fig. 2, the tool body 2 comprises a first core thickness 203 and a second core thickness 204.
The first core thickness 203 is smaller in diameter than the second core thickness 204. The first core thickness 203 is the diameter of the rest part of the tool after being machined by a five-axis grinding machine. The second core thickness 204 is the diameter of the inscribed circle of the tooth profile on the end face of the milling cutter.
The centers of the first core thickness 203 and the second core thickness 204 are both located on the central axis of the milling cutter.
The diameter of the first core thickness 203 is 55% or 60% of the milling cutter.
The second core thickness 204 is 80% of the diameter of the mill.
The cutter bar 1 and the cutter body 2 are both made of hard alloy materials.
The spiral cutting edge 201, the end edge 202 and the cutter groove are all formed by diamond grinding.

Claims (8)

1. The utility model provides a compound milling cutter of grinding apparatus steel, includes cutter arbor (1) and cutter body (2), its characterized in that: a spiral cutting edge (201) is arranged on the outer wall of the cutter body (2);
an end blade (202) is arranged on the end surface of the cutter body (2);
the number of the spiral cutting edges (201) and the number of the end edges (202) are both 6 edges;
the tool body (2) comprises a first core thickness (203) and a second core thickness (204);
the first core thickness (203) diameter is less than the second core thickness (204);
the circle centers of the first core thickness (203) and the second core thickness (204) are both positioned on the central shaft of the milling cutter.
2. The grinding tool steel composite milling cutter according to claim 1, wherein: a spiral included angle a is formed between each two adjacent spiral cutting edges (201) and the axis of the milling cutter;
the tooth aligning angles of the spiral included angles a are the same.
3. The grinding tool steel composite milling cutter according to claim 2, wherein: the tooth aligning angle of the spiral included angle a is 55 degrees, 60 degrees and 65 degrees.
4. The grinding tool steel composite milling cutter according to claim 1, wherein: a flute angle b is formed between two adjacent end edges (202) and the axis of the milling cutter; the slot angle b is 60 °.
5. The grinding tool steel composite milling cutter according to claim 1, wherein: the diameter of the first core thickness (203) is 55% -60% of that of the milling cutter.
6. The grinding tool steel composite milling cutter according to claim 1, wherein: the second core thickness (204) has a diameter of 80% of the milling cutter.
7. The grinding tool steel composite milling cutter according to claim 1, wherein: the cutter bar (1) and the cutter body (2) are both made of hard alloy materials.
8. The grinding tool steel composite milling cutter according to claim 1, wherein: the spiral cutting edge (201), the end cutting edge (202) and the cutter groove are all formed by grinding diamond.
CN201920661284.7U 2019-05-09 2019-05-09 Grinding tool steel composite milling cutter Active CN210059931U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920661284.7U CN210059931U (en) 2019-05-09 2019-05-09 Grinding tool steel composite milling cutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920661284.7U CN210059931U (en) 2019-05-09 2019-05-09 Grinding tool steel composite milling cutter

Publications (1)

Publication Number Publication Date
CN210059931U true CN210059931U (en) 2020-02-14

Family

ID=69451148

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920661284.7U Active CN210059931U (en) 2019-05-09 2019-05-09 Grinding tool steel composite milling cutter

Country Status (1)

Country Link
CN (1) CN210059931U (en)

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