Machining tool for high-strength steel

Abstract

The utility model provides a machining tool for high-strength steel, and aims to solve the technical problems that a D25 tool is easy to deform or break, and the lifting effect of a D50 tool is not obvious. The machining tool comprises a tool handle, eight installation parts are arranged at the end of the tool handle, and the installation parts are evenly distributed around the end of the tool handle by a circle; the eight blades are correspondingly arranged in the eight mounting parts respectively, the blades are detachably connected with the mounting parts, the ends of the blades protrude out of the end of the cutter handle, and an included angle ranging from 6 degrees to 8 degrees is formed between the length direction of each blade and the axis of the cutter handle. The cutting output in unit time is increased by increasing the number of the blades, and the cutting edge angle of the blades is set to be an included angle of 6-8 degrees, so that radial force borne by the blades is reduced, the feeding speed of the cutter is increased, axial force can be increased, and the cutting rigidity and stability of the cutter are improved. According to the technical scheme, the stability of the blade can be effectively improved, and the machining efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to a cutting tool, in particular to a cutting tool for processing high-strength steel. Background Art

[0002] Due to environmental factors, landing gear is typically made of corrosion-resistant and impact-resistant ultra-high-strength steel, a typically difficult-to-machine material. Workpiece blanks are open-die forgings for small-batch trial production and die forgings for large-volume production. Due to the complex structure of landing gear workpieces and the large machining allowances, the finished workpiece mass typically accounts for 8% of the open-die forging blank mass and 20% of the die forging blank mass. Rough machining accounts for over 90% of the total material removal, making improving rough machining efficiency a key factor in improving efficiency.

[0003] Currently, the machining of prototype parts tends to be completed in one go, rather than in batch production, and a "large cut width, small cut depth" cutting method is often used. When roughing and removing large amounts of stock on landing gear workpieces, D25 and D50 tools are often used. D25 tools produce better surface quality and higher precision, but on heavy-duty machine tools, the high torque can easily cause tool deformation or even breakage. D50 tools, on the other hand, offer little improvement in efficiency compared to D25 tools, and they also experience greater machining resistance, significantly increasing spindle load and causing a rapid loss of machine tool precision. Utility Model Content

[0004] In view of the technical problems in the prior art that D25 tools are easily deformed or broken and the lifting effect of D50 tools is not obvious, the utility model provides a high-strength steel processing tool with the advantages of good stability and high efficiency.

[0005] The technical solution of the utility model is:

[0006] A high-strength steel machining tool, comprising:

[0007] The end of the knife handle is provided with eight mounting portions, and all the mounting portions are evenly distributed around the end of the knife handle;

[0008] Eight blades are respectively arranged in the eight mounting parts, the blades are detachably connected to the mounting parts, the ends of the blades protrude from the ends of the handle, and there is an angle of 6°-8° between the length direction of the blades and the axis of the handle.

[0009] Optionally, an L-shaped notch is provided on the outer periphery of the end of the shank, and the notch serves as the mounting portion.

[0010] Optionally, the blade has a through hole, and the axis of the through hole is perpendicular to the length direction of the blade;

[0011] A connecting rod capable of passing through the through hole is provided in the mounting portion, and a nut is matched at the end of the connecting rod.

[0012] Optionally, at least two through holes are provided on the blade, and at least two matching connecting rods are provided on the mounting portion.

[0013] Optionally, a gasket is provided between the nut and the blade.

[0014] Optionally, one side surface of the notch forms an angle of 6°-8° with the length direction of the handle, and one side surface of the blade is in close contact with the side surface of the notch.

[0015] Optionally, the diameter of one end of the mounting portion of the knife handle is larger than the diameter of the other end thereof, and the side portions of all the blades are protruding structures relative to the side surfaces of the knife handle.

[0016] Optionally, the inclination directions of all the blades are the same.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] By increasing the number of blades on the original tool from 4 to 8, the amount of cutting per unit time can be increased. Secondly, an angle of 6°-8° is set between the length direction of the blade and the axis of the tool holder to reduce the radial force on the blade, which helps to increase the tool feed speed and increase the axial force, which helps to improve the cutting rigidity and stability of the tool.

[0019] This technical solution can effectively improve the stability of the blade and greatly enhance the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0021] Figure 1 This is a schematic diagram of the end face structure of the utility model;

[0022] Figure 2 It is a side structural diagram of the utility model;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model. DETAILED DESCRIPTION

[0024] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the products of the present invention are conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0026] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0027] Example:

[0028] See also Figure 1-Figure 3 A high-strength steel processing tool includes a tool handle 1 and a blade 2, wherein one end of the tool handle 1 is provided with eight mounting parts 3, and the eight mounting parts 3 are evenly distributed around the tool handle 1, and the other end of the tool handle 1 can be clamped on a machine tool.

[0029] There are also eight blades 2, which are installed one by one in the eight mounting parts 3. The blades 2 and the mounting parts 3 are detachably connected, and the ends of the blades 2 are convex structures relative to the ends of the handle 1, and the sides of the blades 2 are also convex structures relative to the sides of the handle 1.

[0030] There is an angle between the length direction of the blade 2 and the length direction of the handle 1, which is the main deflection angle of the blade 2. In this embodiment, the main deflection angle of the blade 2 is between 6° and 8°, and all blades 2 have the same inclination direction around the tool.

[0031] The working principle of this embodiment is that by increasing the number of blades 2 on the original tool from 4 to 8, the cutting amount per unit time can be increased. Secondly, by adopting the method of fast feeding the tool, the main deflection angle is set to 6°-8° to reduce the radial force borne by the blade 2, which helps to increase the tool feed speed and increase the axial force, which helps to improve the cutting rigidity and stability of the tool.

[0032] In addition, since the fast-feed tool has a small cutting depth, the cutting width is large, which can reach 70%-100% of the tool diameter. At the same time, combined with the "large cutting width, small cutting depth" processing strategy, when roughing the landing gear workpiece, compared with the traditional milling method, it has the following main advantages: 1. The cutting process is more stable; 2. The tool cutting width is large, and the tool cutting conditions at straight lines and corners vary little, and the tool axial force is large and the radial force is small, the stability is good, and the corner residue is smaller; 3. The workpiece surface quality is good, and the semi-finishing state can be achieved after roughing is completed, which shortens the processing process and improves processing efficiency.

[0033] In one specific embodiment:

[0034] There are eight L-shaped notches on the end of the handle 1. The notches serve as mounting portions 3, and the blade 2 is mounted in the notches. The length of the notches is smaller than the length of the blade 2, and the depth of the notches is smaller than the thickness of the blade 2, so that the end and side of the blade 2 can be protruding structures relative to the end and side of the handle 1, respectively.

[0035] In another specific embodiment:

[0036] Each blade 2 has a through hole. The through hole is circular and passes through both sides of the blade 2. The length direction of the blade 2 is perpendicular to the axis direction of the through hole.

[0037] A connecting rod 4 matching the through hole is provided on the mounting portion 3 of the hilt 1. The connecting rod 4 can pass through the through hole. At the same time, the length of the connecting rod 4 is greater than the thickness of the blade 2, so that the end of the connecting rod 4 protrudes from the side of the blade 2, and a thread is provided on this end of the connecting rod 4, and a nut 5 matching it is provided on this end of the connecting rod 4.

[0038] In this embodiment, the connecting rod 4 passes through the through hole on the blade 2, so that the blade 2 is locked on the mounting portion 3 through the nut 5.

[0039] Preferably, in order to enhance the stability of the blade 2 during the cutting process, two through holes are provided in parallel on the blade 2, and two corresponding connecting rods 4 are provided on the mounting portion 3, and the ends of the two connecting rods 4 are matched with a nut 5 respectively.

[0040] In another specific embodiment:

[0041] A gasket is provided between the nut 5 and the blade 2 . The gasket has two holes. Two connecting rods 4 pass through the two holes respectively and are connected to the nut 5 .

[0042] In another specific embodiment:

[0043] Since the shape of the blade 2 is fixed, the side surface of the notch at the end of the handle 1 is set at an angle of 6°-8° with the length direction of the handle 1. When the blade 2 is installed, the side of the blade 2 with the through hole is closely attached to the side surface, so that the main deflection angle of the blade 2 reaches 6°-8°.

[0044] The above-described embodiments merely represent specific implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. A high-strength steel machining tool, characterized in that: include: The knife handle has eight mounting parts at its end, and all the mounting parts are evenly distributed around the end of the knife handle; Eight blades are respectively arranged in the eight mounting parts, the blades are detachably connected to the mounting parts, the ends of the blades protrude from the ends of the handles, and there is an angle of 6°-8° between the length direction of the blades and the axis of the handles.

2. The high-strength steel machining tool according to claim 1, characterized in that: An L-shaped notch is provided on the outer periphery of the end of the shank, and the notch is the mounting portion.

3. The high-strength steel machining tool according to claim 2, characterized in that: The blade is provided with a through hole, and the axis of the through hole is perpendicular to the length direction of the blade; A connecting rod which can pass through the through hole is arranged in the mounting portion, and a nut is matched at the end of the connecting rod.

4. The high-strength steel machining tool according to claim 3, characterized in that: The blade is provided with at least two through holes, and the mounting portion is provided with at least two connecting rods matching therewith.

5. The high-strength steel machining tool according to claim 4, characterized in that: A gasket is arranged between the nut and the blade.

6. The high-strength steel machining tool according to claim 2, characterized in that: One side surface of the notch forms an angle of 6°-8° with the length direction of the handle, and one side surface of the blade is in close contact with the side surface of the notch.

7. The high-strength steel machining tool according to claim 1, characterized in that: The diameter of one end of the mounting portion of the knife handle is larger than the diameter of the other end thereof, and the side portions of all the blades are convex structures relative to the side surface of the knife handle.

8. The high-strength steel machining tool according to claim 1, characterized in that: All of the blades have the same inclination direction.

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