CN210548186U

CN210548186U - Blade for groove machining

Info

Publication number: CN210548186U
Application number: CN201921214982.9U
Authority: CN
Inventors: 王明泉; 金怀勇; 戚娟娟; 左俊中; 高金刚
Original assignee: Jiangsu Huachen Cylinder Liner Inc Ltd
Current assignee: Jiangsu Huachen Cylinder Liner Inc Ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-05-19
Anticipated expiration: 2029-07-30

Abstract

The utility model discloses a blade for recess processing sets up on the tool row, including tool bit and blade base, the tool bit is fixed on the blade base, and the tool bit is the columnar structure, and tool bit cutting part is circular-arcly, and tool bit one side stretches out from the blade base side, and the back knife face of tool bit is 6-8 contained angles with the vertical direction of blade base, is equipped with long logical groove on the blade base, and its advantage lies in, and the tool bit welding constitutes modular structure on the blade base, when the tool bit damages, can direct whole change, labour saving and time saving improves machining efficiency. The cutter head is made of the cubic boron nitride material, so that the cutter head has good wear resistance and heat resistance, can be machined at high speed for a long time, achieves higher machining precision and meets the requirement on roughness. The cutter head is designed to be arc-shaped and extends out to the side face of the blade base, and meanwhile, an included angle of 6-8 degrees is designed in the vertical direction of the rear cutter face of the cutter head and the blade base, so that the cutter head can be used for cutting a concave face in a groove, and meanwhile, the size precision is guaranteed.

Description

Blade for groove machining

Technical Field

The utility model relates to a dysmorphism work piece processing cutter field especially relates to a blade for recess processing.

Background

When the traditional cutting blade of the numerical control lathe is used for processing the groove part of the workpiece with the shape, the following difficulties (taking figure 4 as an example) are that (1) the roughness of an R9.5mm arc surface is required to be Ra1.6 and is difficult to ensure; (2) the inward concave depth of the R9.5mm arc surface is 0.55m, and the processing is difficult; (3) the dimensional accuracy phi 218.5 +/-0.05 of the R9.5mm arc needs to be ensured while the recess depth of 0.55m is considered, which is difficult. Therefore, it is difficult to finish the work of the illustrated groove shape using the conventional cutting insert.

Disclosure of Invention

The purpose of the invention is as follows: an object of the utility model is to provide a can carry out the blade of accurate processing to the recess.

The technical scheme is as follows: in order to achieve the above object, the utility model discloses a blade for recess processing sets up on the tool row, including tool bit and blade base, the tool bit is fixed on the blade base, and the tool bit is the columnar structure, and tool bit cutting part is circular-arc, and wherein one side stretches out from the blade base side, the back knife face of tool bit is 6-8 contained angles with the vertical direction of blade base, be equipped with long logical groove on the blade base.

Furthermore, in order to conveniently dismantle, the damaged blade is replaced at any time, and the tool bit is welded at the front end of the blade base to form the modular blade.

Preferably, the tool bit is made of cubic boron nitride.

Furthermore, in order to adjust the position of the blade, a long through groove with semicircular two ends is arranged on the blade base, and a screw is inserted into the long through groove to be connected with the blade row so as to clamp and fix the blade on the blade row.

Preferably, the angle between the flank surface of the cutting head and the perpendicular to the insert base is 7 °.

Has the advantages that: the utility model discloses a blade welds the tool bit on the blade base, constitutes modular structure, when the tool bit damages, can direct whole change, labour saving and time saving improves machining efficiency. The cutter head is made of the cubic boron nitride material, so that the cutter head has good wear resistance and heat resistance, can be machined at high speed for a long time, achieves higher machining precision and meets the requirement on roughness. The cutter head is designed into a circular arc shape and extends out to the side face of the blade base, and meanwhile, an included angle of 6-8 degrees is designed in the vertical direction of the rear cutter face of the cutter head and the blade base, so that the cutter head can be used for cutting a concave face in a groove, and meanwhile, the size precision is guaranteed.

Drawings

Fig. 1 is a front view of a blade for grooving process of the present invention.

Fig. 2 is a left side view of the insert for grooving process of the present invention.

Fig. 3 is a top view of the insert for grooving process of the present invention.

FIG. 4 is a schematic view of a groove shape of a workpiece.

In the figure: the cutting tool comprises a tool bit 1, a blade base 2, a long through groove 3, a workpiece 4 and a concave surface 5.

Detailed Description

As shown in fig. 1-3, the blade for groove machining of the present invention mainly comprises a tool bit 1 and a blade base 2, wherein the tool bit 1 is welded on the blade base 2 to form a modular blade structure. The cutter head 1 is of a columnar structure and is of an arc shape, and the cutter head 1 is made of a cubic boron nitride material. The back face of the tool bit 1 forms an included angle of 6-8 degrees with the vertical direction of the blade base 2, and the angle in the embodiment is 7 degrees. And one side of the tool bit 1 extends out from the side surface of the blade base 2, and the extending length of the tool bit 1 can be selected to be different according to different processing requirements. The depth of the groove required for machining is 0.55mm as in fig. 4, and therefore the tool tip 1 protrudes by a length of 0.8mm as shown in fig. 3.

The blade base 2 is provided with a long through groove 3, two ends of the long through groove 3 are semicircular, and a screw is inserted into the long through groove 3 and connected with the cutter row to clamp and fix the blade base 2 on the cutter row.

In the actual use process, the screw in the long through groove 3 is unscrewed, and the front and back positions of the blade can be properly adjusted according to the processing requirement. The cutting part of the tool bit 1 is designed in a circular arc shape, one side of the tool bit 1 extends out of the side face of the blade base 2, an inner concave face 5 of a groove in a workpiece 4 is conveniently cut, the depth and the size precision of the inner concave face are guaranteed, and meanwhile, an included angle of 6-8 degrees is formed between the rear tool face of the tool bit 1 and the blade base 2 in the vertical direction, so that the friction between the tool bit 1 and a machined surface can be reduced, and the surface roughness of the cut surface is protected. The whole modular design that adopts of blade, when tool bit 1 damaged, the direct blade of changing, labour saving and time saving improves work efficiency.

Claims

1. The utility model provides a blade for recess processing, sets up on the sword row, includes tool bit and blade base, the tool bit is fixed on the blade base, its characterized in that: the cutter head is of a cylindrical structure, the cutting part of the cutter head is arc-shaped, one side of the cutter head extends out of the side face of the blade base, the rear cutter face of the cutter head forms an included angle of 6-8 degrees with the vertical direction of the blade base, and the blade base is provided with a long through groove.

2. The insert for recess machining according to claim 1, characterized in that: the tool bit is welded at the front end of the blade base to form the modular blade.

3. The insert for recess machining according to claim 1, characterized in that: the tool bit is made of cubic boron nitride.

4. The insert for recess machining according to claim 1, characterized in that: the long through groove on the blade base is a long through groove with semicircular two ends, and the screw is inserted into the long through groove to be connected with the cutter row so as to clamp and fix the blade on the cutter row.

5. The insert for recess machining according to claim 1, characterized in that: the included angle between the rear cutter face of the cutter head and the vertical direction of the blade base is 7 degrees.