Spiral wave edge T-shaped cutter
By designing a spiral wave-shaped T-type cutting tool with a wavy cutting edge, the problem of easy chipping of the cutting edge in the grooving of cast iron automobile brackets was solved, achieving a superior cutting effect.
Patent Information
- Application Number
- CN202423209600.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-25
AI Technical Summary
When existing cutting tools are used for grooving cast iron automotive brackets, the cutting edge is prone to chipping, resulting in high cutting resistance, difficulty in chip removal, and poor cutting performance.
Design a spiral wave-shaped T-type cutter with a wavy cutting edge and helical teeth. The cutter head rotates counterclockwise for cutting. The alloy insert has a wavy cutting edge on the basis of a spiral shape, with wave crests and troughs distributed to adjust the cutting pressure, reduce the force on the cutting edge, and improve the cutting performance.
It improves the smoothness of the milled surface, reduces cutting edge wear, sharpens the cutting edge, optimizes the chip shape, avoids chipping of the cutting edge, and enhances the cutting effect.
Smart Images
Figure CN223616834U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of machining tool technology, specifically relating to a spiral wave-bladed T-shaped tool. Background Technology
[0002] Cast iron is a commonly used metallic material in industry, widely applied in machinery manufacturing, construction, transportation, and other fields due to its excellent casting performance, machinability, and vibration absorption capabilities. However, because there are many types of cast iron, each with different physical and chemical properties, selecting the appropriate cutting tools is crucial during machining. For grooving automotive brackets made of ductile cast iron, existing cutting tools typically have straight cutting edges. Straight cutting edges result in high cutting resistance, leading to chipping during roughing of the groove, damaging the machined surface and the cutting edge. Furthermore, chip removal is difficult. Therefore, improvements to existing cutting tools are necessary. Summary of the Invention
[0003] To address the aforementioned problems and technical requirements, this utility model provides a spiral wave-shaped T-shaped cutter. The cutting edge of this cutter is wave-shaped, and during grooving, the wave-shaped cutting edge has multiple peaks and troughs. During processing, the pressure can be adjusted in the cutting direction to prevent excessive force on the cutting edge, making the milled surface smoother and improving cutting performance.
[0004] The technical solution of this utility model is as follows: a spiral wave-blade T-shaped cutter includes a cutter head and a cutter handle. The cutter head is connected to the end of the cutter handle. Eight cutting teeth are arranged around the center on the outer circumference of the cutter head. The cutter head rotates counterclockwise for cutting. The cutting teeth are helical. An alloy blade is attached to the front cutting face of each cutting tooth. The cutting edge profile of the alloy blade is spiral. The rear side of the alloy blade is welded to the front cutting face of the cutting tooth. The inclination angle formed between the front cutting face of the cutting tooth and the axial direction of the cutter head is 20 degrees. The front side of the alloy blade and the cutting edge of the spiral blade are both wave-shaped. The wave-shaped blade has three peaks and two troughs between the three peaks. The axial length of the alloy blade is 16mm.
[0005] Furthermore, both ends of the cutter head are chamfered with a chamfer size of 0.5mm.
[0006] Furthermore, the diameter of the cutter head is 70mm, the diameter of the cutter shank is 32mm, and the total length from the cutter head to the cutter shank is 110mm.
[0007] Furthermore, the cutting tooth includes a front cutting face, a mounting face, a rear cutting face, and a peripheral face. The angle between the mounting face and the front cutting face of the cutting tooth is 90 degrees. The alloy insert is welded between the mounting face and the front cutting face. The angle between the rear cutting face of the previous cutting tooth and the mounting face of the next cutting tooth ranges from 145° to 150°.
[0008] Furthermore, the thickness of the alloy blade is 3.5 mm.
[0009] Furthermore, the alloy blade is made of tungsten steel, the cutter head is made of high-speed steel, and the cutter head and the handle are integrally formed.
[0010] The beneficial effects of this utility model are as follows: This tool is used for rough machining of grooving cast iron supports. Alloy inserts are installed on the cutter head. The tungsten steel inserts have advantages over the cutter head in terms of wear resistance and toughness, resulting in sharp cutting and resistance to wear. The cutting edge of the alloy insert is designed as a wave shape based on a spiral shape. The wave-shaped cutting edge has multiple peaks and troughs. During cutting, the peaks contact the cutting surface first, meaning the cutting force is initially concentrated on a few peaks, resulting in low and concentrated pressure. The cut chips are narrow and thick. As the cutting progresses, the chips gradually become wider and thinner. The wave-shaped cutting edge can adjust the cutting pressure according to the depth of the cut, avoiding a sudden increase in cutting edge pressure at the beginning of cutting and preventing chipping. This results in a more uniform and smooth cut surface and superior cutting performance. Attached Figure Description
[0011] Figure 1 This is a structural diagram of the end face of the spiral wave blade T-shaped knife of this utility model;
[0012] Figure 2 This is a schematic diagram of the blade cutting edge distribution along the axial direction of the spiral wave blade T-shaped knife of this utility model.
[0013] The markings in the diagram are: cutter head 1, chamfer 11, cutting tooth 2, front cutting face 21, mounting face 22, rear cutting face 23, circumferential face 24, alloy insert 3, cutting edge 31, and handle 4. Detailed Implementation
[0014] The present invention will now be further described with reference to the accompanying drawings and embodiments.
[0015] like Figure 1-2 The present invention is a spiral wave blade T-shaped knife, including a cutter head 1 and a handle 4. The cutter head 1 is connected to the end of the handle 4. Eight cutting teeth 2 are provided around the center on the outer periphery of the cutter head 1. The cutter head 1 rotates counterclockwise for cutting. The cutting teeth 2 are helical. Each cutting tooth 2 has an alloy blade 3 connected to its front cutting face 21. The cutting edge 31 of the alloy blade 3 has a spiral profile. The rear side of the alloy blade 3 is welded to the front cutting face 21 of the cutting tooth. The inclination angle formed between the front cutting face 21 of the cutting tooth and the axial direction of the cutter head 1 is 20 degrees.
[0016] The diameter of the cutter head 1 is 70mm, the diameter of the cutter shank 4 is 32mm, and the total length from the cutter head 1 to the cutter shank 4 is 110mm. Both ends of the cutter head 1 are machined with chamfers 11, with a chamfer size of 0.5mm.
[0017] The alloy blade 3 is made of tungsten steel, and the cutter head 1 is made of high-speed steel. The cutter head 1 and the tool holder 4 are integrally formed. The alloy blade 3 has a thickness of 3.5mm. Compared with the cutter head, the tungsten steel blade has the advantages of better wear resistance and toughness, resulting in sharp cutting and less wear.
[0018] The cutting tooth 2 includes a front cutting face 21, a mounting face 22, a rear cutting face 23, and a peripheral face 24. The angle between the mounting face 22 and the front cutting face 21 of the cutting tooth 2 is 90 degrees. The alloy cutting tool 3 is welded between the mounting face 22 and the front cutting face 21. The angle between the rear cutting face of the previous cutting tooth and the mounting face of the next cutting tooth ranges from 145° to 150°.
[0019] The front side of the alloy insert 3 and the cutting edge of the spiral cutting edge 31 are both wavy. The wavy cutting edge 31 has three peaks and two troughs between the three peaks. The axial length of the alloy insert 3 is 16mm. The cutting edge of the alloy insert 3 is set to be wavy based on the spiral shape. The wavy cutting edge has multiple peaks and troughs. During cutting, the peaks contact the cutting surface first, that is, the cutting force is initially concentrated on a few peaks. The pressure is small and concentrated, and the cut chip is narrow and thick. As the cutting progresses, the chip gradually becomes wider and thinner. The wavy cutting edge can adjust the cutting pressure according to the depth of the cutting, avoiding the sudden increase of the cutting edge pressure at the beginning of cutting and the resulting chipping, making the cut surface more uniform and smooth.
[0020] The above descriptions are merely several preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations and substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.
Claims
1. A spiral wave-blade T-shaped knife, characterized in that: The tool includes a cutter head and a cutter handle. The cutter head is connected to the end of the cutter handle. Eight cutting teeth are arranged around the center on the outer circumference of the cutter head. The cutter head rotates counterclockwise for cutting. The cutting teeth are helical. Each cutting tooth has an alloy blade attached to its front cutting face. The cutting edge of the alloy blade is helical. The rear side of the alloy blade is welded to the front cutting face of the cutting tooth. The angle between the front cutting face of the cutting tooth and the axis of the cutter head is 20 degrees. The front side of the alloy blade and the cutting edge of the helical blade are wavy. The wavy blade has three peaks and two troughs between the three peaks. The axial length of the alloy blade is 16 mm.
2. The spiral wave-blade T-shaped knife according to claim 1, characterized in that: Both ends of the cutter head are chamfered, with a chamfer size of 0.5mm.
3. The spiral wave-blade T-shaped knife according to claim 2, characterized in that: The diameter of the cutter head is 70mm, the diameter of the cutter shank is 32mm, and the total length from the cutter head to the cutter shank is 110mm.
4. The spiral wave-blade T-shaped knife according to claim 3, characterized in that: The cutting tooth includes a front cutting face, a mounting face, a rear cutting face, and a peripheral face. The angle between the mounting face and the front cutting face of the cutting tooth is 90 degrees. The alloy insert is welded between the mounting face and the front cutting face. The angle between the rear cutting face of the previous cutting tooth and the mounting face of the next cutting tooth ranges from 145° to 150°.
5. The spiral wave-blade T-shaped knife according to claim 4, characterized in that: The alloy blade has a thickness of 3.5 mm.
6. The spiral wave-blade T-shaped knife according to claim 5, characterized in that: The alloy blade is made of tungsten steel, the cutter head is made of high-speed steel, and the cutter head and the handle are integrally formed.