Multi-cutting-edge tooth-shaped cutter and manufacturing method

Abstract

The invention discloses a multi-cutting-edge tooth-shaped cutter and a manufacturing method, the multi-cutting-edge tooth-shaped cutter comprises a cutter head and a cutter handle, a plurality of cutter teeth evenly distributed in the circumferential direction are arranged on the first face of the cutter head, a chip groove is formed between every two adjacent cutter teeth, the second face of the cutter head is fixedly connected with the cutter handle, cutting edges are arranged on the cutter teeth, and the cutting edges are arranged on the first face of the cutter head. The cross section of the cutter teeth and the cross section of the cutting edge are both trapezoidal, the wide ends of the cutter teeth are connected with the cutter head, the narrow ends of the cutter teeth are connected with the cutting edge, the wide ends of the cutting edge are connected with the corresponding cutter teeth, the narrow ends of the cutting edge are used for cutting workpieces, and steps are formed between the first side of the cutting edge and the cutter teeth. The second side of the cutting edge coincides with the corresponding side of the cutter teeth. On the premise that the sharpness of the cutting edge is guaranteed, the structural strength of the cutting edge and the cutter teeth is guaranteed, the service life of the cutter is prolonged, and the possibility that the surface of a workpiece collapses and the cutter collapses is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of machine tool cutting tools, and in particular to a multi-edge toothed cutting tool and a manufacturing method thereof. Background Art

[0002] Machine tool tools are tools used for cutting in mechanical processing. They are usually installed on lathes, milling machines, boring machines and other machine tools for material removal or forming operations. There are many types of machine tool tools. According to the material, they can be divided into sharp steel knives, alloy knives, ceramic knives, boron nitride knives, etc.; according to the structural form, they can be divided into forging knives, welding knives, machine clamping knives, etc. Machine tool tools also include forming contour knives, forming contour knives are a special cutting tool. Forming contour knives mainly include integral forming knives, toothed forming knives, welded forming knives and machine clamping forming knives, etc. Forming contour knives are used to process parts with complex contours.

[0003] When processing glass workpieces, existing contour forming cutters have problems such as insufficient tool life, easy surface collapse of the workpiece, and easy tool edge breakage. In order to reduce damage to the tool and workpiece and extend the tool life, the existing contour forming cutters need to be improved. Summary of the invention

[0004] The main purpose of the present application is to propose a multi-edge toothed tool and a manufacturing method, aiming to solve the problems of insufficient tool life, easy surface collapse of the workpiece, and easy edge breakage of the tool.

[0005] To achieve the above-mentioned purpose, the multi-edge toothed tool and manufacturing method proposed in the present application include: a tool head and a tool handle, wherein a plurality of circumferentially evenly distributed tools are arranged on the first surface of the tool head, and chip grooves are formed between adjacent tools. The second surface of the tool head is fixedly connected to the tool handle, and a blade is arranged on the tool tooth. The cross-sections of the tool tooth and the blade are both trapezoidal, the wide end of the tool tooth is connected to the tool head, and the narrow end of the tool tooth is connected to the blade. The wide end of the blade is connected to the corresponding tool tooth, and the narrow end of the blade is used for cutting a workpiece. A step is formed between the first side of the blade and the tool tooth, and the second side of the blade coincides with the side corresponding to the tool tooth.

[0006] The cutter head includes a cutting part and a connecting part, the cutting teeth are arranged on the cutting part, and the connecting part is used to connect the cutting part and the tool handle; the cutting part is a structure made of PCD material, the connecting part is a structure made of alloy material, and the tool handle is a structure made of tungsten steel material.

[0007] Optionally, the number of the teeth and the number of the blades are both 70, the angle of the first angle of the cross section of the tooth is 52° to 56°, and the angle of the second angle of the cross section of the tooth is 84° to 86°.

[0008] Optionally, the diameter of the cutter head is 20.5mm, the thickness of the cutter head is 5.78mm~5.82mm, and the thickness of the cutting portion is 2.9mm~3.1mm; the first side of the blade is a concave arc surface, the radius of the arc surface is 0.01mm~0.03mm, the width of the wide end of the tooth is 0.16mm~0.2mm, the width of the narrow end of the tooth is 0.1mm~0.14mm, the total depth of the tooth and the blade is 0.13mm~0.17mm, the depth of the blade is 0.01mm~0.03mm, and the width of the narrow end of the blade is 0.01mm~0.02mm.

[0009] Optionally, the blade, the teeth and the cutting portion are an integrally formed structure, the cutting portion and the connecting portion are fixedly connected by welding, and the connecting portion and the handle are connected by welding.

[0010] Optionally, the blade teeth and the blade edge are both arc-shaped strip structures.

[0011] Optionally, the cutter head and the cutter handle are both cylindrical structures, the outer side of the first surface of the cutter head is a circularly distributed and concave curved surface, and the cutter teeth are located on the curved surface.

[0012] A method for manufacturing a multi-edge toothed tool is used to manufacture a multi-edge toothed tool, and the manufacturing method comprises:

[0013] S1: Processing the welding surface of the handle to be smooth and bright;

[0014] S2: Processing the cutter head to a designed thickness and diameter;

[0015] S3: welding the cutter head to the cutter handle;

[0016] S4: Roughly machining the curved surface where the cutter teeth are located;

[0017] S5: Processing the shapes and sizes of the teeth and the blade.

[0018] Optionally, the verticality tolerance of the welding surface of the tool handle after processing in S1 relative to the side of the tool handle is 0.01mm; the second surface of the tool head is welded to the welding surface of the tool handle in S3; the line profile tolerance of the cross-sectional curve of the curved surface in S4 is 0.01mm, and the circular run-out tolerance of the curved surface relative to the side of the tool handle is 0.008mm.

[0019] Optionally, the processing equipment used in S1 is a grinder, the processing equipment used in S2 is a wire cutting machine, the welding in S3 is vacuum diffusion welding, and the processing equipment used in S4 and S5 is a laser cutting machine.

[0020] The technical solution of the present application is that a plurality of teeth uniformly distributed in the circumferential direction are arranged on the first surface of the cutter head, and chip grooves are formed between adjacent teeth. The second surface of the cutter head is fixedly connected to the tool handle, and a blade is arranged on the cutter tooth. The cross sections of the cutter tooth and the blade are both trapezoidal. The wide end of the cutter tooth is connected to the cutter head, and the narrow end of the cutter tooth is connected to the blade. The wide end of the blade is connected to the corresponding cutter tooth, and the narrow end of the blade is used for cutting the workpiece. A step is formed between the first side of the blade and the cutter tooth, and the second side of the blade coincides with the side corresponding to the cutter tooth. When the tool is in use, it is installed on the spindle of the machine tool through the tool handle, and the spindle drives the tool to rotate at high speed, and the blade cuts the workpiece. Since the blade is arranged on the cutter tooth and there is a step between the blade and the cutter tooth, the cutter tooth will not directly contact the workpiece. The close contact can avoid direct wear of the cutter teeth caused by the workpiece; since the wide side of the cutter teeth and the blade faces the cutter head and the narrow side faces the workpiece, the blade can ensure the sharpness while ensuring the structural strength of the blade and the teeth, thereby increasing the service life of the tool and reducing the possibility of surface chipping of the workpiece and tool chipping; since multiple cutter teeth are evenly distributed circumferentially and the blades are arranged on the cutter teeth, multiple evenly distributed chip grooves will be formed between each adjacent cutter tooth and blade for discharging processing debris, and since the cross-sections of the teeth and the blades are both trapezoidal, the cross-section of the chip groove forms an inverse trapezoidal structure, that is, the width of the opening of the chip groove is greater than the width of the bottom of the chip groove, which is beneficial to chip removal and heat dissipation, thereby further ensuring the service life of the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 the structures shown in these drawings without paying any creative work.

[0022] Figure 1 This is a schematic diagram of the structure of the multi-edge toothed tool of this application;

[0023] Figure 2 This is a schematic diagram of the main structure of the cutter head of the multi-edge toothed tool of the present application;

[0024] Figure 3 This is a schematic diagram of the top view of the cutter head of the multi-edge toothed tool of the present application;

[0025] Figure 4 For this application Figure 2 A schematic diagram of the enlarged local structure at point A in the middle;

[0026] Figure 5 This is one of the schematic diagrams of the cross-sectional structure of the teeth of the multi-edge toothed tool of the present application;

[0027] Figure 6 This is the second schematic diagram of the cross-sectional structure of the teeth of the multi-edge toothed tool of the present application.

[0028] Description of Figure Numbers:

[0029] 1. Cutter head; 110. Connecting part; 120. Cutting part; 130. Cutter teeth; 131. Blade; 140. Chip groove; 2. Cutter handle.

[0030] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] It should be noted that when an element is referred to as being "fixed on" or "set on" another component, it can be directly on the other component or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component.

[0033] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0035] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0036] Machine tool tools are tools used for cutting in mechanical processing. They are usually installed on lathes, milling machines, boring machines and other machine tools for material removal or forming operations. There are many types of machine tool tools. According to the material, they can be divided into sharp steel knives, alloy knives, ceramic knives, boron nitride knives, etc.; according to the structural form, they can be divided into forging knives, welding knives, machine clamping knives, etc. Machine tool tools also include forming contour knives, forming contour knives are a special cutting tool. Forming contour knives mainly include integral forming knives, toothed forming knives, welded forming knives and machine clamping forming knives, etc. Forming contour knives are used to process parts with complex contours.

[0037] When processing glass workpieces, existing contour forming cutters have problems such as insufficient tool life, easy surface collapse of the workpiece, and easy tool edge breakage. In order to reduce damage to the tool and workpiece and extend the tool life, the existing contour forming cutters need to be improved.

[0038] In view of this, the present application proposes a multi-edge toothed tool and a manufacturing method.

[0039] In the examples of this application, refer to Figures 1 to 5The multi-edge toothed tool and the manufacturing method thereof comprise: a cutter head 1 and a shank 2, a first surface of the cutter head 1 (a plane away from the shank 2) is provided with a plurality of cutter teeth 130 evenly distributed in the circumferential direction, a chip groove 140 is formed between adjacent cutter teeth 130, a second surface of the cutter head 1 (a plane close to the shank 2) is fixedly connected to the shank 2, a blade 131 is provided on the cutter tooth 130, the cross sections of the cutter tooth 130 and the blade 131 are both trapezoidal, the wide end of the cutter tooth 130 is connected to the cutter head 1, the narrow end of the cutter tooth 130 is connected to the blade 131, the wide end of the blade 131 is connected to the corresponding cutter tooth 130, the narrow end of the blade 131 is used for cutting a workpiece, a step is formed between the first side of the blade 131 and the cutter tooth 130, and the second side of the blade 131 coincides with the corresponding side of the cutter tooth 130.

[0040] Specifically, when the tool is used, it is installed on the spindle of the machine tool through the tool handle 2. The spindle drives the tool to rotate at high speed, and the blade 131 cuts the workpiece. Since the blade 131 is arranged on the blade tooth 130, and there is a step between the blade 131 and the blade tooth 130, the blade tooth 130 will not directly contact the workpiece, which can avoid the workpiece directly causing the wear of the blade tooth 130; since the wide side of the blade tooth 130 and the blade 131 are both facing the cutter head 1, and the narrow side is facing the workpiece, the blade 131 can ensure the sharpness while ensuring the structural strength of the blade 131 and the blade tooth 130, thereby improving the tool The tool life is prolonged and the possibility of surface chipping of the workpiece and tool edge chipping is reduced; since the plurality of teeth 130 are evenly distributed circumferentially and the blades 131 are arranged on the teeth 130, a plurality of evenly distributed chip grooves 140 are formed between each adjacent tooth 130 and blade 131 for discharging machining debris, and since the cross-sections of the teeth and blades 131 are both trapezoidal, the cross-section of the chip groove 140 forms an inverse trapezoidal structure, that is, the width of the opening of the chip groove 140 is greater than the width of the bottom of the chip groove 140, which is beneficial to chip removal and heat dissipation, thereby further ensuring the tool life.

[0041] refer to Figure 1 and Figure 2 The cutter head 1 includes a cutting portion 120 and a connecting portion 110, the teeth 130 are arranged on the cutting portion 120, the connecting portion 110 is used to connect the cutting portion 120 and the handle 2, the cutting portion 120 is a structure made of PCD material (polycrystalline diamond), specifically, a PCD composite sheet is made by sintering PCD material at a high temperature, which has the characteristics of high hardness and high wear resistance, and improves the strength and wear resistance of the cutting portion 120, the connecting portion 110 is a structure made of alloy material, so that the connection between the cutting portion 120 and the handle 2 is more firm and stable, and the handle 2 is a structure made of tungsten steel material, which is not easy to deform during processing.

[0042] refer to Figure 5 and Figure 6The number of teeth 130 and blades 131 are both 70, the first angle g of the cross section of the tooth 130 is 52° to 56°, so that the tooth 130 has better structural strength, and the second angle h of the cross section of the tooth 130 is 84° to 86°, so that the blade 131 has better sharpness.

[0043] refer to Figure 2 and Figure 6 The diameter of the cutter head 1 is 20.5 mm, the thickness of the cutter head 1 is 5.78 mm to 5.82 mm, and the thickness of the cutting portion 120 is 2.9 mm to 3.1 mm; the first side of the blade 131 is an inwardly concave arc surface, the radius f of the arc surface is 0.01 mm to 0.03 mm, the width b of the wide end of the tooth 130 is 0.16 mm to 0.2 mm, the width a of the narrow end of the tooth 130 is 0.1 mm to 0.14 mm, the total depth c of the tooth 130 and the blade 131 is 0.13 mm to 0.17 mm, the depth d of the blade 131 is 0.01 mm to 0.03 mm, and the width e of the narrow end of the blade 131 is 0.01 mm to 0.02 mm; the dimensional accuracy of the tool is ensured, the blade 131 has good strength and sharpness, and at the same time, the tool can process workpieces of corresponding sizes.

[0044] refer to Figure 1 and Figure 2 The blade 131, the teeth 130 and the cutting part 120 are an integrally formed structure. The cutting part 120 is fixedly connected to the connecting part 110 by vacuum diffusion welding, and the connecting part 110 is connected to the handle 2 by vacuum diffusion welding, so that the overall structure of the tool is more stable and convenient for the processing and manufacturing of the tool.

[0045] refer to Figure 2 and Figure 3 The teeth 130 and the blades 131 are both arc-shaped strip structures, that is, the chip grooves 140 between multiple adjacent teeth 130 and blades 131 are both arc-shaped strip structures, which is conducive to chip removal.

[0046] refer to Figure 1 The cutter head 1 and the cutter handle 2 are both cylindrical structures. The outer side of the first surface of the cutter head 1 is a circularly distributed and concave curved surface, and the cutter teeth 130 are located on the curved surface, which is convenient for processing workpieces with corresponding curved surface shapes.

[0047] A method for manufacturing a multi-edge toothed tool is used to manufacture a multi-edge toothed tool, and the manufacturing method comprises:

[0048] S1: Process the welding surface of the handle 2 to be smooth and bright;

[0049] S2: Processing the cutter head 1 to the designed thickness and diameter;

[0050] S3: welding the cutter head 1 to the cutter handle 2;

[0051] S4: Rough machining of the curved surface where the cutter teeth 130 are located;

[0052] S5: Processing the shape and size of the teeth 130 and the blade 131;

[0053] Through the above process method, multi-edge toothed tools with qualified shapes and sizes can be manufactured.

[0054] Specifically, the verticality tolerance of the welding surface of the tool handle 2 after processing in S1 relative to the side of the tool handle 2 is 0.01mm; the second surface of the tool head 1 is welded to the welding surface of the tool handle 2 in S3; the line profile tolerance of the cross-sectional curve of the curved surface in S4 is 0.01mm, and the circular runout tolerance of the curved surface relative to the side of the tool handle 2 is 0.008mm; ensure that the position tolerance between each position of the tool meets the requirements.

[0055] Specifically, the processing equipment used in S1 is a grinder, the processing equipment used in S2 is a wire cutting machine, the welding in S3 is vacuum diffusion welding, and the processing equipment used in S4 and S5 is a laser cutting machine; by rationally using processing equipment and processing methods, qualified cutting tools can be efficiently manufactured.

[0056] The technical solution of the present application is that a plurality of teeth uniformly distributed in the circumferential direction are arranged on the first surface of the cutter head, the second surface of the cutter head is fixedly connected to the cutter handle, a blade is arranged on the cutter tooth, the cross sections of the cutter tooth and the blade are both trapezoidal, the wide end of the cutter tooth is connected to the cutter head, the narrow end of the cutter tooth is connected to the blade, the wide end of the blade is connected to the corresponding cutter tooth, the narrow end of the blade is used for cutting the workpiece, a step is formed between the first side of the blade and the cutter tooth, and the second side of the blade coincides with the side corresponding to the cutter tooth; when the tool is in use, it is installed on the spindle of the machine tool through the cutter handle, the spindle drives the tool to rotate at high speed, and the blade cuts the workpiece, because the blade is arranged on the cutter tooth, and there is a step between the blade and the cutter tooth, the cutter tooth will not directly contact the workpiece, and can Avoid direct wear of the cutter teeth caused by the workpiece; since the wide side of the cutter teeth and the blade faces the cutter head and the narrow side faces the workpiece, the blade can ensure the sharpness while ensuring the structural strength of the blade and the teeth, thereby increasing the service life of the tool and reducing the possibility of surface chipping of the workpiece and tool chipping; since multiple cutter teeth are evenly distributed circumferentially and the blades are arranged on the cutter teeth, multiple evenly distributed chip grooves are formed between each adjacent cutter tooth and blade for discharging processing debris, and since the cross-sections of the teeth and the blade are both trapezoidal, the cross-section of the chip groove forms an inverse trapezoidal structure, that is, the width of the opening of the chip groove is greater than the width of the bottom of the chip groove, which is beneficial to chip removal and heat dissipation, thereby further ensuring the service life of the tool.

[0057] The above description is only an optional embodiment of the present application, and does not limit the patent scope of the present application. All equivalent structural transformations made by using the contents of the present application specification and drawings under the inventive concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A multi-edge toothed tool, characterized in that: include: A cutter head and a cutter handle, wherein a first surface of the cutter head is provided with a plurality of cutter teeth evenly distributed in the circumferential direction, and a chip groove is formed between adjacent cutter teeth; a second surface of the cutter head is fixedly connected to the cutter handle; a cutting edge is provided on the cutter tooth, and the cross-sections of the cutter tooth and the cutting edge are both trapezoidal; a wide end of the cutter tooth is connected to the cutter head, and a narrow end of the cutter tooth is connected to the cutting edge; a wide end of the cutting edge is connected to the corresponding cutter tooth, and the narrow end of the cutting edge is used for cutting a workpiece; a step is formed between the first side of the cutting edge and the cutter tooth, and a second side of the cutting edge coincides with a side corresponding to the cutter tooth.

2. The multi-edge toothed tool according to claim 1, characterized in that: The cutter head includes a cutting part and a connecting part, the cutting teeth are arranged on the cutting part, the connecting part is used to connect the cutting part and the tool handle, the cutting part is a structure made of PCD material, the connecting part is a structure made of alloy material, and the tool handle is a structure made of tungsten steel material.

3. The multi-edge toothed tool according to claim 2, characterized in that: The number of the teeth and the number of the blades are both 70, the angle of the first angle of the cross section of the tooth is 52° to 56°, and the angle of the second angle of the cross section of the tooth is 84° to 86°.

4. The multi-edge toothed tool according to claim 3, characterized in that: The diameter of the cutter head is 20.5mm, the thickness of the cutter head is 5.78mm~5.82mm, and the thickness of the cutting part is 2.9mm~3.1mm; the first side of the blade is a concave arc surface, the radius of the arc surface is 0.01mm~0.03mm, the width of the wide end of the tooth is 0.16mm~0.2mm, the width of the narrow end of the tooth is 0.1mm~0.14mm, the total depth of the tooth and the blade is 0.13mm~0.17mm, the depth of the blade is 0.01mm~0.03mm, and the width of the narrow end of the blade is 0.01mm~0.02mm.

5. The multi-edge toothed tool according to claim 2, characterized in that: The blade, the teeth and the cutting part are an integrally formed structure, the cutting part and the connecting part are fixedly connected by welding, and the connecting part and the handle are connected by welding.

6. The multi-edge toothed tool according to claim 1, characterized in that: The blade teeth and the blade edge are both arc-shaped strip structures.

7. The multi-edge toothed tool according to claim 1, characterized in that: The cutter head and the cutter handle are both cylindrical structures. The outer side of the first surface of the cutter head is a circularly distributed and concave curved surface, and the cutter teeth are located on the curved surface.

8. A method for manufacturing a multi-edge toothed tool, characterized in that: For manufacturing a multi-edge toothed tool as claimed in any one of claims 1 to 7, the manufacturing method comprises: S1: Processing the welding surface of the handle to be smooth and bright; S2: Processing the cutter head to a designed thickness and diameter; S3: welding the cutter head to the cutter handle; S4: Roughly machining the curved surface where the cutter teeth are located; S5: Processing the shapes and sizes of the teeth and the blade.

9. The method for manufacturing a multi-edge toothed tool according to claim 8, characterized in that: The verticality tolerance of the welding surface of the tool handle after processing in S1 relative to the side of the tool handle is 0.01mm; the second surface of the tool head is welded to the welding surface of the tool handle in S3; the line profile tolerance of the cross-sectional curve of the curved surface in S4 is 0.01mm, and the circular run-out tolerance of the curved surface relative to the side of the tool handle is 0.008mm.

10. The method for manufacturing a multi-edge toothed tool according to claim 8, characterized in that: The processing equipment used in S1 is a grinder, the processing equipment used in S2 is a wire cutting machine, the welding described in S3 is vacuum diffusion welding, and the processing equipment used in S4 and S5 is a laser cutting machine.

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