Efficient forming cutter for machining stainless steel magnetic sleeve

Abstract

The utility model provides an efficient forming cutter for machining a stainless steel magnetic sleeve. The efficient forming cutter comprises a handle portion and a head portion. The handle part and the head part are coaxially and integrally arranged, the head part is provided with two or more cutting edges which are spirally arranged around the axis of the head part, and the cutting edges are arranged in an anticlockwise rotating mode. And chip grooves are formed between the cutting edges. The cutting edge comprises an end edge, a guide edge, an edge part and a side edge, and the end edge, the guide edge, the edge part and the side edge are integrally arranged from the head part to the handle part. According to the utility model, the guide blade is arranged, so that the cutter can more accurately cut according to the preset direction in the initial cutting stage, the cutter is helped to stably cut in, the cutter is prevented from shifting, and the machining precision is ensured. And the anticlockwise designed cutting edge changes the chip removal direction, so that the smoothness of the hole wall is favorably kept, and the surface quality of a machined surface is improved.

Description

Technical Field

[0001] This utility model belongs to the field of machining technology, specifically relating to a high-efficiency forming tool for processing stainless steel magnetic sleeves. Background Technology

[0002] Stainless steel, a widely used metallic material, possesses remarkable characteristics of high toughness and hardness. This unique combination of properties endows stainless steel with numerous excellent characteristics, but it also presents many challenges in its machining process. When machining stainless steel with ordinary cutting tools, the high hardness of the stainless steel causes the cutting edge to endure enormous pressure and friction during cutting, making the tool edge extremely prone to wear. Rapid tool wear not only reduces machining accuracy but also significantly impacts machining efficiency, requiring frequent machine downtime for tool replacement and increasing machining costs. In the common machining process of drilling, the high toughness of stainless steel makes the chips difficult to break, instead presenting a continuous and curled state. Under the rotation of the drill bit, these chips are easily squeezed to the edge of the hole, forming burrs that are difficult to remove. These burrs not only affect the dimensional accuracy and surface quality of the hole but may also cause adverse effects in subsequent assembly processes.

[0003] Therefore, the above problems urgently need to be solved. Utility Model Content

[0004] Purpose of the utility model: In order to overcome the above shortcomings, this utility model provides a high-efficiency forming knife for processing stainless steel magnetic sleeves, which has high wear resistance, long tool life, good dimensional stability, high processing efficiency, high forming surface quality, few burrs generated after processing, and does not affect subsequent assembly and other processes.

[0005] Technical Solution: To achieve the above objectives, this utility model provides a high-efficiency forming tool for machining stainless steel magnetic sleeves, comprising a shank and a head. The shank and head are coaxially integrated, and the head has two or more cutting edges spirally arranged around its axis, rotating counterclockwise. Chip removal grooves are provided between the cutting edges. The cutting edge includes an end edge, a guide edge, a cutting edge, and a side edge, which are integrated from the head towards the shank. By setting the guide edge, this utility model enables the tool to cut more accurately in a predetermined direction during the initial cutting stage, helping the tool to cut smoothly, avoiding tool deviation, ensuring machining accuracy, and distributing the cutting force of the cutting edge, reducing cutting edge wear, and extending tool life. The counterclockwise design of the cutting edges changes the chip removal direction, which helps maintain the surface finish of the hole wall and improves the surface quality of the machined surface.

[0006] Furthermore, in the aforementioned high-efficiency forming tool for machining stainless steel magnetic sleeves, the guide edge includes a first guide edge and a second guide edge. The first and second cutting edges are located on both sides of the chip removal groove, and the first and second guide edges are staggered. This staggered design ensures that the first and second guide edges are offset by a certain distance. During cutting, the first and second guide edges perform cutting work sequentially, dispersing the cutting force, reducing tool wear, and increasing tool life. The staggered design also avoids resonance, reduces surface chatter marks, and improves surface quality.

[0007] Furthermore, in the aforementioned high-efficiency forming tool for machining stainless steel magnetic sleeves, the cutting edge includes a first cutting edge and a second cutting edge, which are located on both sides of the chip removal groove. The first and second cutting edges are staggered. This staggered design ensures that the first and second cutting edges are offset by a certain distance, allowing them to perform cutting operations sequentially during cutting, thus dispersing cutting forces, reducing tool wear, and increasing tool life. The staggered design also prevents resonance, reduces surface chatter marks, and improves surface quality.

[0008] Furthermore, in the aforementioned high-efficiency forming tool for machining stainless steel magnetic sleeves, the first and second guide edges are staggered from the head to the shank, and the second and first cutting edges are staggered from the head to the shank. During cutting, the first and second guide edges act as the main cutting edges, while the second and first guide edges act as secondary cutting edges or do not participate in cutting, thus balancing the cutting force and making the cutting process smoother and achieving better surface quality. Simultaneously, the staggered first and second guide edges, acting as the main cutting edges, allow chips to be removed from the chip evacuation grooves between the different cutting edges, improving cutting clearance and reducing the possibility of chips being squeezed to the hole edge and forming burrs.

[0009] Furthermore, in the aforementioned high-efficiency forming tool for machining stainless steel magnetic sleeves, the end cutting edge is positioned perpendicular to the head axis. In the initial machining stage, the end cutting edge, perpendicular to the head axis, first contacts the workpiece surface, ensuring the tool accurately lands in the machining position, achieving precise positioning. The end cutting edge reduces the initial cutting force, making it easier to cut into the material surface, preventing tool damage, and improving machining accuracy.

[0010] Furthermore, in the aforementioned high-efficiency forming tool for machining stainless steel magnetic sleeves, the cutting edge is positioned perpendicular to the head axis, and the cutting edge and end edge are parallel. As the primary cutting edge, the cutting edge is crucial for hole forming. The parallel positioning of the cutting edge with the end edge ensures stable cutting forces on the tool, helping to guarantee the straightness and cylindricity of the hole and improve its surface quality. During machining, the cutting force is evenly distributed along the cutting edge, reducing pressure on the hole edges, preventing material tearing and deformation at the hole edges, and minimizing burr formation.

[0011] Furthermore, in the aforementioned high-efficiency forming tool for machining stainless steel magnetic sleeves, the cutting edge includes a secondary cutting edge, which transitionally connects the cutting edge and the side cutting edge. The secondary cutting edge reduces stress at the connection between the cutting edge and the side cutting edge, allowing the cutting force to be smoothly transmitted from the cutting edge to the side cutting edge, preventing sudden changes in cutting force that could damage the tool, and improving tool life.

[0012] Furthermore, in the aforementioned high-efficiency forming tool for machining stainless steel magnetic sleeves, the center of the end cutting edge is located at the center of the head, and the guide cutting edge connects the end cutting edge and the cutting edge smoothly, so that the cutting force is transmitted smoothly from the end cutting edge to the cutting edge, avoiding sudden changes in cutting force that could damage the tool and improving the tool's service life.

[0013] Furthermore, in the aforementioned high-efficiency forming tool for machining stainless steel magnetic sleeves, the shank and head are made of cemented carbide. Cemented carbide has high hardness, can withstand high cutting forces, has good wear resistance, extends tool life, and improves machining efficiency.

[0014] As can be seen from the above technical solution, this utility model has the following beneficial effects: The high-efficiency forming tool for processing stainless steel magnetic sleeves, by setting a guide edge, enables the tool to cut more precisely in a predetermined direction during the initial cutting stage, helping the tool to cut smoothly, avoiding tool deviation, ensuring machining accuracy. The guide edge can distribute the cutting force of the cutting edge, reducing cutting edge wear and extending tool life. The counter-clockwise design of the cutting edge changes the chip removal direction, which helps maintain the smoothness of the hole wall and improves the surface quality of the machined surface. The staggered tooth setting of the cutting edge can avoid tool resonance, reduce vibration marks on the forming surface, and improve surface quality. During cutting, the first guide edge and the second cutting edge act as the main cutting edge, while the second guide edge and the first cutting edge act as secondary cutting edges or do not participate in cutting, which can balance the cutting force, making the tool cut more smoothly and obtaining better surface quality. Simultaneously, the cross-set first guide edge and the second cutting edge act as the main cutting edge, and the chips are removed from the chip removal grooves between different cutting edges, improving the cutting removal capacity and reducing the possibility of chips being squeezed to the edge of the hole and forming burrs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the high-efficiency forming knife for processing stainless steel magnetic sleeves according to this utility model;

[0016] Figure 2 This is a schematic diagram of the head.

[0017] In the figure: 1. Shank, 2. Head, 3. Cutting edge, 4. Chip groove, 31. End edge, 32. Guide edge, 321. First guide edge, 322. Second guide edge, 33. Cutting edge, 331. First cutting edge, 332. Second cutting edge, 34. Side edge, 35. Secondary edge. Detailed Implementation

[0018] Example 1

[0019] like Figure 1-2 The diagram shows a high-efficiency forming tool for machining stainless steel magnetic sleeves, comprising a shank 1 and a head 2. The shank 1 and head 2 are coaxially integrated. The head 2 has two or more cutting edges 3 spirally arranged around its axis, rotating counterclockwise. A chip removal groove 4 is provided between the cutting edges 3. Each cutting edge 3 includes an end edge 31, a guide edge 32, a cutting edge 33, and a side edge 34, all integrally arranged from the head 2 toward the shank 1. The guide edge 32 includes a first guide edge 321 and a second guide edge 322, located on opposite sides of the chip removal groove 4, with staggered teeth. The cutting edge 33 includes a first cutting edge 331 and a second cutting edge 332, located on opposite sides of the chip removal groove 4, with staggered teeth. The first guide blade 321 and the second guide blade 322 are arranged with staggered teeth from the head 2 towards the handle 1. The second cutting edge 332 and the first cutting edge 331 are also arranged with staggered teeth from the head 2 towards the handle 1. The end blade 31 is perpendicular to the axis of the head 2. The cutting edge 33 is perpendicular to the axis of the head 2, and the cutting edge 33 and the end blade 31 are parallel. The cutting edge 3 includes a secondary blade 35, which transitionally connects the cutting edge 33 and the side blade 34. The end blade 31 is centered at the center of the head 2, and the guide blade 32 transitionally connects the end blade 31 and the cutting edge 33. The handle 1 and the head 2 are made of cemented carbide.

[0020] During cutting, the end cutting edge 31 first contacts the surface of the blank and cuts the blank. As the end cutting edge 31 cuts in, the guide cutting edge 32 cuts the blank, guiding the tool into the blank for cutting. The staggered first guide cutting edge 321 and the second cutting edge 332 alternately cut the blank. Then, the cutting edge 33 contacts the blank and begins cutting. At this time, the first guide cutting edge 321 and the second cutting edge 332 act as the main cutting edges, while the second guide cutting edge 322 and the first cutting edge 331 act as secondary cutting edges or do not participate in cutting. As the tool extends into the blank, the end cutting edge 31 first exits the blank, then the guide cutting edge 32 exits, and finally the cutting edge 33 exits. As the cutting edge 33 exits, the secondary cutting edge 35 cuts the hole edge again, removing burrs from the hole edge.

[0021] The above embodiments are exemplary and are intended to illustrate the technical concept and features of this utility model, so that those skilled in the art can understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A high-efficiency forming knife for processing stainless steel magnetic sleeves, characterized in that: It includes a shank (1) and a head (2); the shank (1) and the head (2) are coaxially integrated, the head (2) is provided with a cutting edge (3) spirally arranged around the axis of the head (2), the cutting edge (3) is provided with two or more, the cutting edge (3) is arranged in a counterclockwise rotation; a chip removal groove (4) is provided between the cutting edges (3); the cutting edge (3) includes an end edge (31), a guide edge (32), a cutting edge (33), and a side edge (34), the end edge (31), the guide edge (32), the cutting edge (33), and the side edge (34) are integrated from the head (2) toward the shank (1).

2. The high-efficiency forming tool for processing stainless steel magnetic sleeves according to claim 1, characterized in that: The guide blade (32) includes a first guide blade (321) and a second guide blade (322). The first guide blade (321) and the second guide blade (322) are respectively disposed on both sides of the chip discharge groove (4). The first guide blade (321) and the second guide blade (322) are staggered.

3. The high-efficiency forming tool for processing stainless steel magnetic sleeves according to claim 2, characterized in that: The cutting edge (33) includes a first cutting edge (331) and a second cutting edge (332), which are respectively disposed on both sides of the chip discharge groove (4); the first cutting edge (331) and the second cutting edge (332) are staggered.

4. The high-efficiency forming tool for processing stainless steel magnetic sleeves according to claim 3, characterized in that: The first guide blade (321) and the second guide blade (322) are arranged with staggered teeth from the head (2) toward the handle (1), and the second blade (332) and the first blade (331) are arranged with staggered teeth from the head (2) toward the handle (1).

5. The high-efficiency forming tool for processing stainless steel magnetic sleeves according to claim 1, characterized in that: The end blade (31) is set perpendicular to the axis of the head (2).

6. The high-efficiency forming tool for processing stainless steel magnetic sleeves according to claim 5, characterized in that: The blade (33) is arranged perpendicular to the axis of the head (2), and the blade (33) and the end blade (31) are arranged in parallel.

7. The high-efficiency forming tool for processing stainless steel magnetic sleeves according to claim 6, characterized in that: The cutting edge (3) includes a secondary edge (35) that transitionally connects the cutting edge (33) and the side edge (34).

8. The high-efficiency forming tool for processing stainless steel magnetic sleeves according to claim 1, characterized in that: The end blade (31) is located at the center of the head (2), and the guide blade (32) connects the end blade (31) and the blade (33) in a transitional manner.

9. The high-efficiency forming tool for processing stainless steel magnetic sleeves according to claim 1, characterized in that: The handle (1) and head (2) are made of cemented carbide.

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