CN209755281U

CN209755281U - Soft material cutting knife

Info

Publication number: CN209755281U
Application number: CN201920602588.6U
Authority: CN
Inventors: 潘勇强; 霍建新; 刘志学; 李秀鑫
Original assignee: Chengdu Aeronautic Polytechnic
Current assignee: Chengdu Aeronautic Polytechnic
Priority date: 2019-04-28
Filing date: 2019-04-28
Publication date: 2019-12-10
Anticipated expiration: 2029-04-28

Abstract

The utility model discloses a soft material cutting off tool, which comprises a tool, wherein the angle of a left main deflection angle of the tool is 45 degrees, the angle of a left auxiliary deflection angle of the tool is 3 degrees, the angle of a right main deflection angle of the cutting off tool is 135 degrees, and the angle of a right auxiliary deflection angle of the cutting off tool is 5 degrees; the left main deflection angle, the right main deflection angle, the left auxiliary deflection angle and the right main deflection angle of the cutter have special angles, so that the longitudinal cutter point participates in the increase of the working length, the heat dissipation channel path is widened, the heat dissipation performance is good, the sharpness of the cutter is increased, when the cutter is set, the cutter point is easier to align to a workpiece, the guidance performance is good, the longitudinal cutter point is trimmed to be circular arc shape of 0.5mm, the strength of the cutter point is further improved, an edge with the width not larger than 1mm is ground below a double back angle, the strength of a cutting edge is ensured, the friction between the cutter and a material is reduced, the stability during cutting is good, the vibration is reduced, chip removal is facilitated, chip coiling and chip breaking are facilitated, the front angle is large, the chip deformation is small, the received cutting force is small, and.

Description

Soft material cutting knife

Technical Field

The utility model relates to the technical field of materials, specifically a soft material cutting off cutter.

Background

Nylon (PA for short) is a plastic composed of a polyamide resin. The high-viscosity high-strength high-toughness high-strength high-toughness high-strength high-.

At present, most factories often generate brittle failure when cutting materials during processing due to the defects of poor plasticity and toughness of nylon, the materials are not completely cut and are broken in advance when being processed, residual materials are left on the fracture surface, and the residual materials are removed and can be processed again, so that the production efficiency is low, the machine tool resources are wasted, and the requirements of various high-efficiency and large-batch production are difficult to meet. To solve such problems, we have improved a soft material cutting blade.

For a traditional flat-head cutting tool, although the design of the back angle of the tool is not small, the actual working back angle in the working process is small, when a bar-shaped material is cut to be close to the center, the material is extruded, although the feeding amount is not large, the friction of the tool on the material is gradually increased, the material is fractured, a certain amount of residual materials are left on the section, the surface quality of a workpiece cannot be guaranteed, the integral requirement cannot be met, only the head can be adjusted and clamped, and the residual materials are removed by deviating the end surface again; the traditional cutter is poor in guidance and heat dissipation, the cutting speed is increased in production in order to improve the processing efficiency in the current factory, but the cutting temperature is increased, the temperature of the cutting edge of the cutter is too high, and the chip melting phenomenon is generated for soft materials. To reduce the cutting temperature, the cutting speed may be reduced, but the production efficiency is reduced, so these problems can be solved only from the viewpoint of tool design.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a soft material cutting off cutter to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a soft material cutting off cutter, includes the cutter, the angle of the left main declination of cutter is 45, and the angle of the vice declination of a left side is 3, the angle of the right main declination of cutting off cutter is 135, and the angle of the vice declination of the right side is 5, the back shape of cutter is dual relief angle, the dual relief angle of cutter is 20, dual relief angle blade below is provided with 1mm edge.

Preferably, the longitudinal knife edge of the knife tool is in a circular arc shape of 0.5 mm.

Preferably, the longitudinal rake angle of the tool is a curved rake angle of 8 °.

Compared with the prior art, the beneficial effects of the utility model are that: the left main deflection angle, the right main deflection angle, the left auxiliary deflection angle and the right main deflection angle of the cutter have special angles, so that the longitudinal cutter point participates in the increase of the working length, the heat dissipation channel path is widened, the heat dissipation performance is good, the sharpness of the cutter is increased, when the cutter is set, the cutter point is easier to align to a workpiece, the guidance performance is good, the longitudinal cutter point is trimmed to be circular arc shape of 0.5mm, the strength of the cutter point is further improved, an edge with the width not larger than 1mm is ground below a double back angle, the strength of a cutting edge is ensured, the friction between the cutter and a material is reduced, the stability during cutting is good, the vibration is reduced, chip removal is facilitated, chip coiling and chip breaking are facilitated, the front angle is large, the chip deformation is small, the received cutting force is small, and.

Drawings

FIG. 1 is a schematic view of the angle structure of the cutting knife of the present invention;

Fig. 2 is a schematic view of the shape and structure of the knife tip of the present invention.

In the figure: 1 cutter, 2 left main deflection angles, 3 right main deflection angles, 4 longitudinal cutter points, 5 left auxiliary deflection angles, 6 right main deflection angles, 7 double relief angles and 8 edges.

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.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a soft material cutting off cutter, includes cutter 1, the angle of the left main declination 2 of cutter 1 is 45, and the angle of left side vice declination 5 is 3, the angle of the right main declination 3 of cutting off cutter is 135, and the angle of right side vice declination 6 is 5, the back shape of cutter 1 is dual relief angle 7, the dual relief angle 7 of cutter 1 is 20, dual relief angle 7 blade below is provided with 1mm edge 8, has guaranteed the intensity of blade, has reduced the friction of cutter 1 with the material again, and the stationarity is good during the cutting, and vibrations reduce.

Specifically, the longitudinal cutting edge 4 of the cutting tool 1 is in a circular arc shape of 0.5mm, so that the strength of the cutting edge is further improved.

Specifically, the longitudinal rake angle of the tool 1 is a curved rake angle of 8 degrees, which is beneficial to chip removal, chip coiling and chip breaking, and the rake angle is large, the chip deformation is small, the cutting force is small, and the deformation of the material is also reduced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. a soft material cutting off cutter, includes cutter (1), its characterized in that: the angle of the left main declination (2) of cutter (1) is 45 degrees, and the angle of left vice declination (5) is 3 degrees, the angle of the right main declination (3) of cutting off cutter is 135 degrees, and the angle of right vice declination (6) is 5 degrees, the back shape of cutter (1) is dual relief angle (7), the dual relief angle (7) of cutter (1) is 20 degrees, dual relief angle (7) blade below is provided with 1mm edge (8).

2. A soft material cutting blade according to claim 1, wherein: the longitudinal tool tip (4) of the tool (1) is in a circular arc shape with the diameter of 0.5 mm.

3. A soft material cutting blade according to claim 1, wherein: the longitudinal rake angle of the cutter (1) is a curved surface rake angle of 8 degrees.