CN207642322U - A kind of micro- texture lathe tool blade of high pressure cooling cutting - Google Patents

Abstract

The utility model relates to a high-pressure cooling cutting micro-texture turning tool insert, which relates to a turning insert used for high-pressure cutting. The utility model aims to solve the problems of large cutting force, high cutting temperature, serious tool wear and damage, difficult chip breaking, frequent tool changing and poor machined surface quality of the existing blade during the cutting process. The utility model comprises a blade main body, the cutter body is diamond-shaped, the upper end surface of the cutter body is a rake face, four cutting edges are arranged around the rake face, an arc edge is arranged at the intersection of two adjacent cutting edges, and the rake face of the cutter body is There is a chip breaker on the top. The chip breaker is composed of a straight line and a zigzag arc. There is a groove in the chip breaker near the tip of the tool, and a hemispherical micro-weave structure near the tip of the tool. There is a round hole at the position, a boss is provided on the rake face of the cutter body, and chamfers are provided on the main cutting edge and the arc edge. The utility model is mainly used for turning processing of high-pressure cooling cutting.

Description

A high-pressure cooling cutting micro-textured turning tool insert

technical field

The utility model relates to a high-pressure cooling cutting micro-texture turning tool blade.

Background technique

Difficult-to-machine materials such as superalloys and titanium alloys have high oxidation resistance, high temperature resistance, corrosion resistance and other unique comprehensive properties such as good fatigue performance, fracture toughness and plasticity. These alloys are widely used in aero-engine parts . However, these properties lead to problems such as large and concentrated cutting force, high cutting temperature, difficult chip breaking, severe tool wear and damage, poor surface quality of machined parts, and frequent tool changes during processing. High-pressure cutting technology is an efficient and high-precision cutting technology, which can effectively improve the processing quality of workpieces, reduce tool wear and reduce production costs in the process of processing the above materials. The utility model proposed under this background plays a positive role in promoting high-pressure cooling cutting.

Contents of the invention

The purpose of the utility model is to provide a high-pressure cooling cutting micro-textured turning tool blade to solve the problems of high cutting temperature, high cutting force, difficult chip breaking, and poor surface quality of parts processed by existing blades during processing.

In order to solve the above-mentioned technical problems, the utility model adopts the technical scheme as follows: a high-pressure cooling cutting micro-texture turning tool blade, which includes a blade body, and its characteristics are: the body is diamond-shaped, and the acute angle of the rhombus is 80°. There is a circular hole in the center of the cutter body, main cutting edges are provided on the four sides of the cutter body, and a circular arc edge is provided at the intersection point of the two cutting edges with an included angle of 80°. There is a blunt circle, and there is a chip breaker on the rake face of the cutter body. The chip breaker is composed of a straight line and a zigzag arc. Weaving structure, the rake face of the cutter body is provided with a boss, and the main cutting edge and the arc edge are provided with chamfers.

The utility model has the following beneficial effects: the chip breaker is provided with a groove close to the tip of the tool, so that more cooling liquid can be reserved in the tip of the tool under the condition of ensuring the strength of the tip of the tool. There is a hemispherical micro-weave structure near the tip of the knife. This hemispherical micro-weave structure can enlarge the cutting area of the tool tip in a limited space, increase heat dissipation, and reduce the cutting temperature. At the same time, the gap between the hemispheres can be used Tension retains more coolant, reducing friction between chips. The chip breaker is composed of a straight line and a zigzag arc, which reduces the wear of the chip on the tool, improves the cutting efficiency and prolongs the service life of the tool.

Description of drawings

Fig. 1 is a top view of the utility model; Fig. 2 is a front view of the utility model; Fig. 3 is a sectional view of A-A of the utility model; Fig. 4 is a sectional view of B-B of the utility model; Fig. 5 is a sectional view of C-C of the utility model; Partial enlarged view at H; FIG. 7 is partial enlarged view at G in FIG. 3 .

Detailed ways

Specific embodiment one: this embodiment is described in conjunction with Fig. 1, the blade of this embodiment comprises cutter body 1, and cutter body is 80 ° rhombus, has circular hole 1-1 at the central position of cutter body, four sides of cutter body 1 There is a main cutting edge 3 on one side, and a knife-tip arc edge 5 is provided at the intersection point of the two cutting edges with an included angle of 80°. Groove 2, the end face of the chip breaker 2 is composed of a straight line and a zigzag arc. The rake face of the cutter body 1 is provided with a boss 8, which is higher than the rake face and lower than the height of the chip breaker. A groove 7 is provided near the tip of the groove, a hemispherical micro-weave structure 6 is provided near the tip of the knife, and chamfers 4 are provided at the main cutting edge and the arc edge. The blunt circle radii of the main cutting edge 3 and the arc edge 5 are both 40 μm.

Specific Embodiment 2: This embodiment is described with reference to FIG. 1 . The groove 7 of this embodiment is oblong, with a length of 0.9 mm, a width of 0.3 mm, and a depth of 0.1 mm. The distance between two adjacent grooves is 1 mm.

Specific Embodiment Three: This embodiment is described with reference to FIG. 1 . The groove width of the chip breaker 2 in this embodiment varies along the length direction of the main cutting edge 3 , and the variation range is 0.5-2mm.

Specific Embodiment 4: This embodiment is described in conjunction with FIG. 1. The micro-woven structure 6 of this embodiment is a rhombus composed of 24 hemispheres. The acute angle of the rhombus is 80°, the diameter of the hemisphere is 0.1 mm, and the distance between adjacent hemispheres is 0.15 mm. .

Embodiment 5: This embodiment is described in conjunction with FIG. 1 . The positive rake angle γ ₀ of the main cutting edge in this embodiment is 18 ^o , the relief angle α is 0 ^o , the rake angle γ ₀₁ of the chamfer 4 is 8 ^o , and the chamfer The width of the edge 4 is 0.2mm, and the radius of the arc of the tool tip is 0.6mm. This structure effectively solves the problems of hard chip breaking, high cutting temperature, high cutting force, serious tool wear and damage during the cutting process, improves the machined surface quality of the workpiece, and increases the service life of the tool. Other implementation manners are the same as the specific implementation manner 1.

Claims (8)

1. micro- texture lathe tool blade is cut in a kind of high pressure cooling, it includes blade cutter hub（1）, it is characterized as：Cutter hub（1）It is water chestnut Shape, diamond shape acute angle are 80 °, and the centre bit of cutter hub is equipped with circular hole（1-1）, four sides of cutter hub are equipped with main cutting edge（3）, pressing from both sides Two cutting edge junction points that angle is 80 ° are equipped with tool arc sword（5）, there is blunt circle at cutting edge, knife before cutter hub Face is equipped with chip-breaker（2）, chip-breaker（2）It is to be made of straight line and zigzag circular arc, chip-breaker is equipped with groove at point of a knife （7）, it is equipped at the point of a knife and hemispherical micro- knits structure（6）, cutter hub rake face is equipped with boss（8）, equal at main cutting edge, Circular Nose Cutting Edge Equipped with chamfered edge（4）.

2. micro- texture lathe tool blade is cut in a kind of high pressure cooling according to claim 1, it is characterised in that：In main cutting edge （3）And Circular Nose Cutting Edge（5）Place is equipped with chamfered edge（4）, chamfered edge width is 0.2mm.

3. micro- texture lathe tool blade is cut in a kind of high pressure cooling according to claim 1, it is characterised in that：Main cutting edge（3） Cutting edge blunt round radius and tool arc sword（5）The radius of cutting edge blunt circle is 40 μm.

4. micro- texture lathe tool blade is cut in a kind of high pressure cooling according to claim 1, it is characterised in that：The main cutting edge （3）Positive rake angle γ₀It is 18^o, relief angle α is 0^o, chamfered edge（4）Anterior angle γ₀₁It is 8^o。

5. micro- texture lathe tool blade is cut in a kind of high pressure cooling according to claim 1, it is characterised in that：The chamfered edge（4） Width be 0.2mm, tool arc sword（5）Radius be 0.6mm.

6. micro- texture lathe tool blade is cut in a kind of high pressure cooling according to claim 1, it is characterised in that：The groove（7） For oblong.

7. micro- texture lathe tool blade is cut in a kind of high pressure cooling according to claim 1, it is characterised in that：The chip-breaker （2）Groove profile width along main cutting edge（3）Length direction be variation.

8. micro- texture lathe tool blade is cut in a kind of high pressure cooling according to claim 1, it is characterised in that：It is described micro- to knit structure （6）The diamond shape being made of 24 hemisphere.