CN211803871U

CN211803871U - Circular texture indexable type anti-friction turning tool blade

Info

Publication number: CN211803871U
Application number: CN201920649658.3U
Authority: CN
Inventors: 冯新敏; 董庆尚; 王柏惠
Original assignee: Harbin University of Science and Technology
Current assignee: Harbin University of Science and Technology
Priority date: 2019-05-08
Filing date: 2019-05-08
Publication date: 2020-10-30
Anticipated expiration: 2029-05-08

Abstract

The utility model provides a circular texture formula antifriction turning piece that can transpose for semi-finishing and rough machining turning superalloy possess characteristics such as reducing the cutting force, promoting the chip breaking. The utility model discloses the blade adopts the design of the triangle cutter body that the knife tip is 80 jiaos of types, is made by carbide material. The circular texture distributed by circular arc is designed on the front cutter surface of the blade, so that the abrasion and damage of the cutter are reduced, and the cutting force is reduced; a polygonal chip breaking table is machined on the top surface of the blade to control the chip to be broken; the polygonal boss is designed on the top surface of the blade and used for supporting the blade, so that the cutting edge is prevented from being directly contacted with the clamping part of the tool rest when the blade is installed to damage the cutting edge on the lower surface, a certain amount of cutting fluid can be stored, and heat exchange between the blade and the cutting fluid is facilitated.

Description

Circular texture indexable type anti-friction turning tool blade

Technical Field

The invention relates to a circular texture indexable type antifriction turning insert. Belongs to the technical field of antifriction of metal cutting machining tools, and is mainly applied to the high-temperature alloy finish machining process under steam fog cooling.

Background

The high-temperature alloy has high hardness and strength, particularly high-temperature hardness, and stable atomic structure and high bonding force. Therefore, the cutting force is very large, about 2 to 3 times that of a general steel material. The material has low heat conductivity coefficient and poor heat conductivity, so that the heat is not easy to dissipate, and the material is concentrated at the tool tip, thereby causing high cutting temperature. At high temperature, elements in the material are easy to react with elements such as nitrogen, hydrogen, oxygen and the like in the air to form a processing hardened layer, and the hardness of the processing hardened layer can reach 200-500% of that of the base material. The high-temperature alloy has large elongation which can reach 50 percent at room temperature, so that the high-temperature alloy has super-strong plastic deformation capability. In the actual production process, due to the characteristics of a large amount of cutting heat, large cutting force, difficult broken chips and the like, the cutter is easily abraded. Therefore, the common blade is difficult to meet the machining requirement, people also pursue the requirements of high efficiency, cost saving, machining quality improvement and the like of machining, and therefore research and innovation on cutting the high-temperature alloy blade are urgent.

Disclosure of Invention

It is big to have a cutting force during superalloy machining, and cutting temperature is high, cutter wearing and tearing, the serious scheduling problem of damage, the utility model provides an indexable texture antifriction turning insert, this blade can effectual reduction cutting force, reduces cutting temperature, reduces wearing and tearing and damage in the cutter cutting process.

The utility model discloses the blade adopts the design of the triangle cutter body that the knife tip is 80 jiaos of types, is made by carbide material. On one hand, the microstructure reduces the contact area of the cutter and the scraps, dissolves a small amount of cutting fluid, increases lubrication and reduces the friction of the cutter scraps; on the other hand, the introduction of the microtexture also increases the heat dissipation area of the rake face, which is beneficial to the reduction of the cutting temperature. Circular textures distributed in a circular arc shape are distributed on the front knife face of the blade; 3 polygonal chip breaking tables are distributed on the top surface of the blade. The polygonal boss is designed on the top surface of the blade and used for supporting the blade, so that the cutting edge is prevented from being directly contacted with a tool rest clamping part when the blade is installed, the cutting edge on the lower surface is damaged, a certain amount of cutting fluid can be stored, heat exchange between the blade and the cutting fluid is facilitated, and the heat dissipation area is increased. There are four drainage grooves on central fastening screw hole and can lead cutting fluid to the lower surface of blade, have three cylindrical boss at the lower surface of blade, avoid blade lower surface and cutter arbor face to laminate completely to realize two-sided lubricated effect.

Drawings

The invention is further described below with reference to the accompanying drawings.

Fig. 1 is a schematic front view of the three-dimensional structure of the present invention;

FIG. 2 is a three-dimensional enlarged view of a portion of the present invention;

fig. 3 is a schematic back view of the three-dimensional structure of the present invention;

the labels in the figure are: 1-arc knife tip; 2-circular texture; 3-polygonal chip breaking table; 4-polygonal boss; 5-blade top surface; 6-a drainage groove; 7-fastening screw holes; 8-cylindrical boss.

Detailed Description

The blade is designed by a triangular cutter body with a cutter point of 80 degrees, and is fixedly arranged on the cutter bar through a fastening screw hole (7). The blade adopts the design of a large arc tool tip to ensure the strength of the blade. The circular texture (2) distributed in an arc shape is designed on the front cutter surface of the blade, so that on one hand, the microstructure reduces the contact area between a cutter and chips, dissolves a small amount of cutting fluid, increases lubrication and reduces the friction of the cutter chips; on the other hand, the introduction of the microtexture also increases the heat dissipation area of the rake face, which is beneficial to the reduction of the cutting temperature. 3 polygonal chip breaking platforms (3) are distributed on the top surface (5) of the blade, and chip breaking capacity of the blade is achieved. The blade top surface (5) is provided with the polygonal boss (4) for supporting the blade, so that the cutting edge is prevented from being directly contacted with a tool rest clamping part when the blade is installed, the cutting edge on the lower surface is damaged, a certain amount of cutting fluid can be stored, heat exchange between the blade and the cutting fluid is facilitated, and the heat dissipation area is increased. There are four drainage grooves (6) on central fastening screw hole (7) and can lead cutting fluid to the lower surface of blade, have three cylindrical boss (8) at the lower surface of blade, avoid blade lower surface and cutter arbor face to laminate completely to realize two-sided lubricated effect.

Claims

1. A circular texture indexable type antifriction turning tool blade is characterized in that: circular textures (2) distributed in a circular arc shape are designed on the front knife face of the blade; 3 polygonal chip breaking platforms (3) are distributed on the top surface (5) of the blade.

2. The circularly textured indexable wear insert of claim 1, wherein: there are four drainage grooves (6) on central fastening screw hole (7) and can lead cutting fluid to the lower surface of blade, have three cylindrical boss (8) at the lower surface of blade, avoid blade lower surface and cutter arbor face to laminate completely to realize two-sided lubricated effect.