CN217018876U

CN217018876U - Composite cutter for removing R angle of workpiece

Info

Publication number: CN217018876U
Application number: CN202122939732.5U
Authority: CN
Inventors: 薛明杰
Original assignee: Jiangsu Wanjin Precision Cutting Tool Co ltd
Current assignee: Jiangsu Wanjin Precision Cutting Tool Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-07-22
Anticipated expiration: 2031-11-29

Abstract

The utility model discloses a composite cutter for clearing an R angle of a workpiece, which comprises a cutter handle and a cutting head part, wherein one end of the cutter handle is connected with the cutting head part, and the cutting head part comprises a first cutter edge, a second cutter edge and a chip groove; the first cutter edge is used for setting the cutting shape of the cutter; the second knife edge is used for clearing an R angle left after the first knife edge is cut; the second knife edge comprises a first section, a second section, a third section and a fourth section, the first section is connected with the second section at an angle of 90 degrees, the second section is connected with the third section at an angle of 90 degrees, and the third section is connected with the fourth section at an angle of 90 degrees; the fourth section is connected with a chip groove. According to the utility model, the first cutting edge can help the cutter to cut, the first section and the second section in the second cutting edge are connected in an angle of 90 degrees, so that the cutting section reserved by the first cutting edge is not damaged, and the problem of the R angle left in the first cutting process is solved.

Description

Composite cutter for removing R angle of workpiece

Technical Field

The utility model relates to the technical field of cutters, in particular to a composite cutter for clearing an R angle of a workpiece.

Background

A tool is a tool used for cutting machining in machine manufacturing, and is also called a cutting tool. In the machining process of the cutter, because the cutting edge is arranged at an angle, an R angle is easily formed in the rotary machining process of the cutter, the size of the workpiece and the effect of the workpiece are influenced by the existence of the R angle in a high-precision workpiece, and the removal of the R angle also becomes a technical problem to be solved. Most of the prior art is cleaned under a microscope by arranging a separate cutter.

The slicing knife for processing the die-cutting knife disclosed in the Chinese patent (with the application number of 201320037300.8 and the authorization number of CN 203124862U) is characterized in that: comprises a handle and a cutter edge connected with the end part of the handle; the handle is provided with a button for controlling the electric device to rotate; the cutter edge is composed of a plurality of concentric radial fan-shaped blades; an acute angle, an obtuse angle or a right angle is formed between two adjacent fan-shaped blades.

Referring to the slicing knife for die-cutting knife processing disclosed in the above-mentioned published chinese patent, the following defects were found: a slicing knife for die-cutting rule processing is through setting up the cutter alone and getting rid of under the microscope, need replace original cutter tool bit with getting rid of R angle cutter, just can realize, and whole process structure is complicated, operates inconveniently, change cutter waste time.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects, the utility model provides the compound cutter which has simple structure, convenient use and time saving and can clear the R angle in the workpiece under the condition of not replacing the cutter.

The utility model is realized by the following steps: the utility model provides a clear away compound tool at work piece R angle, includes handle of a knife and cutting head, its characterized in that are connected to handle of a knife one end: the cutting head portion includes a first cutting edge, a second cutting edge and a chip pocket; the first cutter edge is used for setting the cutting shape of the cutter;

the second knife edge is used for clearing an R angle left after the first knife edge is cut; the second knife edge comprises a first section, a second section, a third section and a fourth section, the first section is connected with the second section at an angle of 90 degrees, the second section is connected with the third section at an angle of 90 degrees, and the third section is connected with the fourth section at an angle of 90 degrees; the fourth cross section is connected with a chip groove.

The cutting head portion is provided with 2 first knife edges, 2 second knife edges and 4 chip flutes, the first knife edges and the second knife edges are arranged at intervals, and the chip flutes are arranged between the adjacent first knife edges and the adjacent second knife edges.

The first knife edge comprises a first inclined plane, a fifth section, a second inclined plane, a sixth section and a seventh section; the first inclined surface is connected with a fifth cross section, the fifth cross section is connected with the second inclined surface, the second inclined surface is connected with a sixth cross section, the sixth cross section is connected with a seventh cross section at an angle of 90 degrees, and the seventh cross section is connected with a chip pocket.

The chip flutes are arc chip flutes.

The utility model has simple structure and convenient use, and helps to clear unnecessary R angles in the workpiece. When the tool is used, the first tool cutting edge is used for determining the inherent shape of the tool during cutting, and the second tool cutting edge is used for clearing the R angle left after cutting of the first tool cutting edge; the first inclined plane in the first cutter edge is connected with the position of a connecting line of the fifth section, the first inclined plane and the fifth section form an angle, and an angle difference of an R angle is formed when the cutter cuts the fifth section, so that after the first cutter edge rotates and cuts the remaining R, the first section and the second section in the second cutter edge are connected by 90 degrees to form a right angle, and the workpiece is removed without the existence of the R angle; the first section is a vertical surface and is in a shape for protecting the first inclined surface.

Preferably, the connecting line of the first inclined plane and the fifth cross section is higher than the connecting line of the first cross section and the second cross section; and the connecting line of the fourth cross section and the seventh cross section, which is connected with the chip flutes, is positioned on the same horizontal plane. The connecting line of the first inclined plane and the fifth section in the first knife edge is higher than the connecting line of the first section and the second section in the second knife edge, so that the clearing position of the R angle is further found while the inherent shape of the first knife edge is ensured, and the clearing precision and efficiency of the R angle are improved.

Preferably, the length of the fourth cross section is shorter than the length of the second cross section. The length of the fourth section is shorter than that of the second section, the length of the connection between the fourth section and the chip groove is shortened, and the original shape of the first cutter edge is prevented from being damaged.

Preferably, the through holes are formed in the tool shank and the cutting head, the through holes are formed in the central parts of the tool shank and the cutting head, and the through holes of the tool shank and the cutting head are in a straight line. When the cutter is used for cutting, the temperature is too high, water flow can flow into the cutting head part through the through hole, the temperature is reduced, and the reduction of the service life of the cutter caused by the too high temperature is reduced.

The utility model has the beneficial effects that: 1. can help the cutter to cut through first sword blade, first cross-section and second cross-section are 90 connections in the second sword blade, guarantee not destroying the sword cutting tangent plane that first sword blade was kept, clear away the R angle problem of leaving over when first sword is cut.

2. Through being higher than first cross-section and second cross-section connecting wire with first inclined plane and fifth cross-section connecting wire, the position at R angle is further clear away to the accuracy and the effect at R angle are guaranteed to clear away.

3. Through the setting of through-hole, help cutter rapid cooling when the sword is cut reduces the cutter blade and shortens life because of the speed is too high.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

Fig. 2 is an oblique view of the present invention.

Fig. 3 is an enlarged view of the point a.

Fig. 4 is another angle part structure diagram of fig. 1.

The cutting tool comprises a tool shank 1, a cutting head 2, a first cutting edge 3, a second cutting edge 4, a chip flute 5, a first section 6, a second section 7, a third section 8, a fourth section 9, a fifth section 10, a sixth section 11, a seventh section 12, a first inclined plane 13, a second inclined plane 14 and a through hole 15.

Detailed Description

The utility model will be further described below with reference to the accompanying drawings.

As shown in fig. 1, the compound tool for clearing the R angle of the workpiece comprises a tool shank 1 and a cutting head 2, wherein one end of the tool shank 1 is connected with the cutting head 2, through holes 15 which are in the same straight line are formed in the tool shank 1 and the cutting head 2, and the through holes 15 are positioned on the center lines of the tool shank 1 and the cutting head 2; the cutting head comprises first cutting edges 3, second cutting edges 4 and chip flutes 5, wherein the number of the first cutting edges 3 is 2, the number of the second cutting edges 4 is 2, and the number of the chip flutes 5 is 4; the first cutting edge 3 is connected with the chip groove 5, the chip groove 5 is connected with the second cutting edge 4, the second cutting edge 4 is connected with the chip groove 5, and the chip groove 5 is connected with the first cutting edge 3 in sequence until the complete cutting head 2 is formed.

Further, the second cutting edge 4 comprises a second cutting edge 4 comprising a first section 6, a second section 7, a third section 8 and a fourth section 9, the first section 6 being joined to the second section 790 °, the second section 7 being joined to the third section 890 °, and the third section 8 being joined to the fourth section 990 °; the fourth cross-section 9 connects the chip flutes 5, and the fourth cross-section 9 connects to the chip flutes 5 is arc-shaped.

Further, the first knife edge 3 comprises a first bevel 13, a fifth cross-section 10, a second bevel 14, a sixth cross-section 11 and a seventh cross-section 12; the first inclined surface 13 is connected with the fifth section 10, the fifth section 10 is connected with the second inclined surface, the second inclined surface 14 is connected with the sixth section 11, the sixth section 1190 degrees is connected with the seventh section 12, the seventh section 12 is connected with the chip groove 5, and the seventh section 12 is connected with the chip groove 5 and is arc-shaped.

Furthermore, the connecting line between the first inclined plane 13 and the fifth cross section 10 is higher than the connecting line between the first cross section 6 and the second cross section 7; the connecting lines of the fourth section 9 and the seventh section 12, which are connected with the chip flutes 5, are positioned on the same horizontal plane; the length of the fourth section 9 is shorter than the length of the second section 7.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides a clear away compound tool at work piece R angle, includes handle of a knife (1) and cutting head (2), its characterized in that are connected to handle of a knife (1) one end: the cutting head (2) comprises a first cutter edge (3), a second cutter edge (4) and a chip groove (5); the first knife edge (3) is used for setting the shape of the knife;

the second knife edge (4) is used for clearing an R angle left after the first knife edge (3) is cut; the second knife edge (4) comprises a first section (6), a second section (7), a third section (8) and a fourth section (9), the first section (6) is connected with the second section (7) at an angle of 90 degrees, the second section (7) is connected with the third section (8) at an angle of 90 degrees, and the third section (8) is connected with the fourth section (9) at an angle of 90 degrees; the fourth cross section (9) is connected with the chip groove (5).

2. The compound tool for removing R-corners from a workpiece as set forth in claim 1, wherein: the cutting head portion (2) is provided with 2 first cutting edges (3), 2 second cutting edges (4) and 4 chip grooves (5), the first cutting edges (3) and the second cutting edges (4) are arranged at intervals, and the chip grooves (5) are arranged between the adjacent first cutting edges (3) and the adjacent second cutting edges (4).

3. A compound tool for removing R corners from a workpiece as defined in claim 1, wherein: the first knife cutting edge (3) comprises a first inclined surface (13), a fifth section (10), a second inclined surface (14), a sixth section (11) and a seventh section (12); the first inclined surface (13) is connected with the fifth cross section (10), the fifth cross section (10) is connected with the second inclined surface, the second inclined surface (14) is connected with the sixth cross section (11), the sixth cross section (11) is connected with the seventh cross section (12) in an angle of 90 degrees, and the seventh cross section (12) is connected with the chip flutes (5).

4. A compound tool for removing R corners from a workpiece as defined in claim 3, wherein: the connecting line of the first inclined plane (13) and the fifth section (10) is higher than the connecting line of the first section (6) and the second section (7); and a connecting line of the fourth cross section (9) and the seventh cross section (12) which are connected with the chip grooves (5) is positioned on the same horizontal plane.

5. A compound tool for removing R corners from a workpiece as defined in claim 1, wherein: the length of the fourth section (9) is shorter than the length of the second section (7).

6. A compound tool for removing R-corners from a workpiece according to claim 1 or 3, wherein: the chip flutes (5) are arc chip flutes (5).

7. A compound tool for removing R corners from a workpiece as defined in claim 1, wherein: through holes (15) are arranged in the tool handle (1) and the cutting head (2), the through holes (15) are formed in the center parts of the tool handle (1) and the cutting head (2), and the through holes (15) of the tool handle (1) and the cutting head (2) are straight lines.