CN215035238U

CN215035238U - U bores compound cutter arbor of two chamfers

Info

Publication number: CN215035238U
Application number: CN202120796007.4U
Authority: CN
Inventors: 王文华; 陈思
Original assignee: Yancheng Jingqi Cutter Co ltd
Current assignee: Yancheng Jingqi Cutter Co ltd
Priority date: 2021-04-19
Filing date: 2021-04-19
Publication date: 2021-12-07
Anticipated expiration: 2031-04-19

Abstract

The utility model relates to a lathe cutter technical field specifically discloses a compound cutter arbor of two chamfers of U brill. The drill rod is provided with a chip discharge groove, the top of the drill rod is provided with a U-shaped drill inner blade and a U-shaped drill outer blade, the U-shaped drill inner blade and the U-shaped drill outer blade are consistent in height and identical in main deflection angle, the root of the drill rod is provided with a first mounting groove and a second mounting groove, the drill rod is provided with a chamfering blade, the chamfering blade is detachably mounted in the first mounting groove or the second mounting groove through a screw, and the main deflection angles of the chamfering blade when the chamfering blade is mounted in the first mounting groove and the second mounting groove are 45 degrees and 30 degrees respectively; the utility model discloses the integrated level is high, can be under the condition that need not the tool changing, processing through-hole and chamfer in proper order, is equipped with two mounting grooves on the drilling rod and supplies the rotatory installation of chamfer blade, satisfies different angle chamfer work needs, and is nimble changeable, and the suitability is high.

Description

U bores compound cutter arbor of two chamfers

Technical Field

The utility model relates to a lathe cutter technical field, concretely relates to compound cutter arbor of two chamfers of U brill.

Background

The method for machining the large-diameter hole by installing the hard alloy blade on the alloy cutter body is commonly called as a U-drill. The U-drill is characterized by low cost and high processing efficiency of a single cutter.

When a certain flange part is machined, a rough drill with the diameter of 21.5 is needed, the front surface of the part is chamfered at 30 degrees, the back surface of the part is chamfered at 45 degrees, three cutters are needed for machining, and the corresponding cutters are high in purchase cost; the production efficiency is low; the cutter brings more auxiliary time such as cutter changing and is not beneficial to high-efficiency mass production.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem be: in the prior art, machining tools such as through hole parts are high in cost and low in effective efficiency, and a U-drill double-chamfer composite cutter bar is provided.

The utility model discloses a following technical scheme realizes, a compound cutter arbor of two chamfers of U brill, including handle of a knife, connecting portion and drilling rod, be equipped with the chip groove on the drilling rod, the drilling rod top is equipped with U and bores interior sword blade and U and bore outer sword blade, U bores interior sword blade and U and bores outer sword blade parallel, U bores the highly uniform of interior sword blade, U and bores outer sword blade, and main declination is the same, the drilling rod root is equipped with first mounting groove and second mounting groove, be equipped with the chamfer blade on the drilling rod, the chamfer blade passes through in the first mounting groove of screw detachable installation or the second mounting groove, the main declination that the chamfer blade was installed when first mounting groove and second mounting groove is different.

Further, the main deflection angle of the chamfering blade when mounted in the first mounting groove is 45 °, and the main deflection angle of the chamfering blade when mounted in the second mounting groove is 30 °.

Furthermore, the U drill inner edge blade, the U drill outer edge blade and the chamfer blade are all indexable four-edge blades.

Further, the indexable four-edged insert is of the model SPMG07T 308.

Further, the main drift angle of the U-shaped drill inner blade and the U-shaped drill outer blade is 87 degrees, and the cutting clearance angle is 3 degrees.

Further, the main cutting edge of the U-shaped drill inner edge blade is 0.1mm lower than the center plane of the drill rod, and the main cutting edge of the U-shaped drill outer edge blade is 1mm higher than the center plane of the drill rod.

The utility model has the advantages that:

1. the utility model discloses bore the chamfer sword integration with U on same cutter arbor, the integrated level is high, can be under the condition that need not the tool changing, processing through-hole and chamfer in proper order, and the production rhythm is good, improves machining efficiency.

2. The utility model discloses be equipped with two mounting grooves that are used for installing the chamfer blade, the main declination is 45 and 30 respectively when the chamfer blade is installed in first mounting groove and second mounting groove. The chamfering blade can be selectively installed in a proper installation groove according to the processing requirement, is flexible and changeable, and has high applicability.

Drawings

Fig. 1 is a schematic structural view of a U-drill double-chamfer composite cutter bar.

In the figure: 1, a knife handle; 2, a connecting part; 3, drilling a drill pipe; 31 chip grooves; 32 a first mounting groove; 33 a second mounting groove; 4U inner edge drilling blade; 5U drill outer edge blade; 6 chamfering the blade.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, a compound cutter arbor of two chamfers of U brill, including handle of a knife 1, connecting portion 2 and drilling rod 3, be equipped with chip groove 31 on the drilling rod 3, 3 tops of drilling rod are equipped with U and bore interior sword blade 4 and U and bore outer sword blade 5, U bores interior sword blade 4 and U and bores outer sword blade 5 parallel, U bores interior sword blade 4, U and bores outer sword blade 5 highly uniform, and main declination is the same, 3 roots of drilling rod are equipped with first mounting groove 32 and second mounting groove 33, be equipped with chamfer blade 6 on the drilling rod 3, chamfer blade 6 passes through in the first mounting groove 32 of screw detachable installation or in the second mounting groove 33, the main declination of chamfer blade 6 when installing first mounting groove 32 and second mounting groove 33 is different.

In practical applications, the chamfer angle of the chamfer insert 6 when mounted in the first mounting groove 32 is 45 °, and the angle of the chamfer insert 6 when mounted in the second mounting groove 33 is 30 °.

In practical application, the U-drill inner edge blade 4, the U-drill outer edge blade 5 and the chamfer blade 6 are all indexable four-edge blades.

In practical application, the indexable four-edged insert is of the model SPMG07T 308.

In practical application, the main drift angle of the U-drill inner edge blade 4 and the U-drill outer edge blade 5 is 87 °, and the cutting clearance angle is 3 °.

In practical application, the main cutting edge of the U-shaped inner edge blade 4 is 0.1mm lower than the central plane of the drill rod 3, and the main cutting edge of the U-shaped outer edge blade is 1mm higher than the central plane of the drill rod 3.

The utility model discloses a theory of operation:

the utility model discloses with the integration of U brill chamfer sword on same drilling rod, add man-hour, the U at drilling rod top bores interior sword blade 4, U and bores outer sword blade 5 and at first carries out drill chip processing to the part, is run through the back when the part is processed, and chamfer blade 6 carries out cutting process to the through-hole edge, accomplishes the chamfer, the utility model discloses the integrated level is high, can be under the condition that need not the tool changing, processing through-hole and chamfer in proper order, production rhythm is good, improves machining efficiency. The utility model discloses be equipped with two mounting grooves that are used for installing the chamfer blade, the main declination is 45 and 30 respectively when chamfer blade 6 is installed in first mounting groove 32 and second mounting groove 33. The chamfering blade can be selectively installed in a proper installation groove according to the processing requirement, is flexible and changeable, and has high applicability.

To sum up, a U bore compound cutter arbor integrated level of two chamfers high, can be under the condition that need not the tool changing, processing through-hole and chamfer in proper order, be equipped with two mounting grooves on the drilling rod and supply the rotatory installation of chamfer blade, satisfy different angle chamfer work needs, nimble changeable, the suitability is high.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the foregoing embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose of the present invention is to provide a person skilled in the art with the ability to understand the contents of the present invention and implement the same, and not to limit the scope of the present invention.

Claims

1. The utility model provides a compound cutter arbor of two chamfers of U brill which characterized in that: including handle of a knife (1), connecting portion (2) and drilling rod (3), be equipped with chip groove (31) on drilling rod (3), drilling rod (3) top is equipped with U bores interior sword blade (4) and U bores outer sword blade (5), U bores interior sword blade (4) and U bores outer sword blade (5) and is parallel, U bores the highly uniform of interior sword blade (4), U bores outer sword blade (5), and the owner is declined the angle the same, drilling rod (3) root is equipped with first mounting groove (32) and second mounting groove (33), chamfer blade (6) are equipped with on drilling rod (3), chamfer blade (6) are in first mounting groove (32) or in second mounting groove (33) through screw detachable installation, the owner when chamfer blade (6) are installed in first mounting groove (32) and second mounting groove (33) is declined the angle different.

2. The U-drill double-chamfer composite cutter bar according to claim 1, characterized in that: the main deflection angle when the chamfering blade (6) is installed in the first installation groove (32) is 45 degrees, and the main deflection angle when the chamfering blade (6) is installed in the second installation groove (33) is 30 degrees.

3. The U-drill double-chamfer compound cutter bar as claimed in claim 1 or 2, wherein: the U-drill inner edge blade (4), the U-drill outer edge blade (5) and the chamfering blade (6) are all indexable four-edge blades.

4. The U-drill double-chamfer composite cutter bar according to claim 3, characterized in that: the indexable four-edged insert is of the model SPMG07T 308.

5. The U-drill double-chamfer composite cutter bar according to claim 1, characterized in that: the main deflection angle of the U-drill inner blade (4) and the U-drill outer blade (5) is 87 degrees, and the cutting clearance angle is 3 degrees.

6. The U-drill double-chamfer composite cutter bar according to claim 1, characterized in that: the main cutting edge of the U-shaped drill inner edge blade (4) is 0.1mm lower than the central plane of the drill rod (3), and the main cutting edge of the U-shaped drill outer edge blade (5) is 1mm higher than the central plane of the drill rod (3).