Burr restraining cutter

Abstract

A cutting part comprises a main cutting edge, rear cutter faces, secondary cutting edges, chip grooves and front cutter faces, the side edges of a chisel edge are respectively provided with the front cutter faces, the side, close to the chisel edge, of each front cutter face is the rear cutter face, the side, away from the chisel edge, of each front cutter face is the main cutting edge, and each edge strip spirally extends to a handle part from the main cutting edge. The chip grooves 7 are formed in the sides, close to the front cutter face, of the edge strips, a secondary cutting edge is arranged between each main cutting part and each edge strip, the secondary cutting edges are used for being filleted edges, through the secondary cutting edges with the filleted edges, notches and cutting force are reduced, secondary cutting is carried out, burr escape is prevented, and zero burr residues are achieved to the maximum extent; the chisel edge and the main cutting edge in the adjacent cutting part form a C-shaped tip, so that the jumping of the drill bit is reduced, and the centering effect is good; and an anti-interference surface is further connected between the rear cutter surface and the secondary cutting edge, so that collision interference between surfaces during machining is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of precision machining, and more specifically, to a burr suppressing tool. Background Art

[0002] A milling cutter is a rotating tool with one or more cutting teeth for milling. During operation, each cutting tooth intermittently cuts off the surplus of the workpiece in turn. Milling cutters are mainly used for machining planes, steps, grooves, formed surfaces, and cutting workpieces on milling machines.

[0003] In the prior art, the tool closest to the present application has the publication number: CN111347087A, a drill bit with an automatic chip removal function, which discloses a tool including a shank, a tool shank, a main cutting edge, and a cooling hole. The shank and the tool shank are integrally formed. The tool shank is provided with a flute, a land 13, and a flank. The land 13 is arranged between the flute and the flank. The tip of the tool shank away from the shank is provided with a flank and a rake face. The cooling hole is opened on the flank. The cutting edge on the rake face is the main cutting edge. A chisel edge is also provided on the tip.

[0004] During the machining of existing tools, the cutting resistance is relatively large, and burrs are likely to remain, resulting in poor machining accuracy.

[0005] In view of this, the utility model provides a burr suppressing tool that is easy to chip. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a burr suppressing tool that is easy to chip.

[0007] A burr suppressing tool includes a cutting part 1 and a shank 2. The free end of the shank 2 is the top, and the connecting end of the shank 2 and the cutting part 1 is the bottom. It is characterized in that: two cutting parts 1 are connected to the bottom of the shank 2. The two adjacent cutting parts 1 are axially symmetrically arranged with the central axis of the shank 2. A chisel edge 3 is formed between the front ends of the two adjacent cutting parts 1. The cutting part 1 includes a main cutting edge 4, a flank 5, a secondary cutting edge 6, a chip removal groove 7, and a rake face 8. Two rake faces 8 are respectively arranged on the sides of the chisel edge 3. The side of each rake face 8 close to the chisel edge 3 is the flank, and the side of each rake face 8 away from the chisel edge 3 is the main cutting edge 4. Each land 13 spirally extends from the main cutting edge 4 to the shank 2. The chip removal groove 7 is arranged on the side of the land 13 close to the rake face 8. A secondary cutting edge 6 is arranged between each main cutting part 1 and each land 13. The secondary cutting edge 6 is used to reduce the cutting opening and cutting force and remove burrs. The secondary cutting edge 6 is a rounded corner edge.

[0008] Furthermore, the radial angle of the rounded corner edge is 15°

[0009] In some embodiments, a chip pocket 9 is further provided between the main cutting edge 4 and the chip groove 7, which serves to increase the chip evacuation space and help the chips to be discharged smoothly.

[0010] In some embodiments, an auxiliary cutting edge 10 is further provided between the secondary cutting edge 6 and the main cutting edge 4 for assisting in cutting.

[0011] In some embodiments, the main cutting edge 4 is arranged in the form of a small flat surface, which is impact-resistant and has higher stability, realizing long service life and stable machining.

[0012] In some embodiments, an anti-interference surface 11 is further connected between the flank face 5 and the secondary cutting edge 6 to prevent collision interference between surfaces during machining.

[0013] In some embodiments, a transition surface 12 is further provided between the land 13 and the anti-interference surface 11, which serves as a transition and guiding function.

[0014] In some embodiments, the width of the land 13 near the transition surface 12 and the secondary cutting edge 6 is smaller than the width of the land 13 near the shank 2.

[0015] In some embodiments, the chisel edge 3 and the main cutting edge 4 in two adjacent cutting parts 1 form a C-shaped tip, which reduces the drill bit runout and has a good centering effect.

[0016] Advantages of the present utility model: The present utility model provides a deburring tool. The cutting part 1 includes a main cutting edge 4, a flank face 5, a secondary cutting edge 6, a chip groove 7, a rake face 8. Two rake faces 8 are respectively arranged on the sides of the chisel edge 3. Each rake face 8 is a flank face near the chisel edge 3, and each rake face 8 is a main cutting edge 4 far from the chisel edge 3. Each land 13 spirally extends from the main cutting edge 4 to the shank 2. The chip groove 7 is arranged on the side of the land 13 near the rake face 8. A secondary cutting edge 6 is provided between each main cutting part 1 and each land 13. The secondary cutting edge 6 is used for... The secondary cutting edge 6 is a rounded corner edge. By using the secondary cutting edge 6 with a rounded corner edge, the incision and cutting force are reduced, and secondary cutting is performed to prevent the burrs from escaping, realizing zero burr residue to the greatest extent; the chisel edge 3 and the main cutting edge 4 in two adjacent cutting parts 1 form a C-shaped tip, which reduces the drill bit runout and has a good centering effect; an anti-interference surface 11 is further connected between the flank face 5 and the secondary cutting edge 6 to prevent collision interference between surfaces during machining. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the front view of a deburring tool of the present application.

[0018] Figure 2 It is the top view of a deburring tool of the present application.

[0019] Figure 3 This is a perspective view of a deburring tool for this application.

[0020] Description of main component symbols

[0021] Cutting part 1, shank part 2, chisel edge 3, main cutting edge 4, flank 5, secondary cutting edge 6, chip groove 7, rake face 8, chip pocket 9, auxiliary cutting edge 10, anti-interference surface 11, transition surface 12, land 13.

[0022] The following specific embodiments will further illustrate the present utility model in conjunction with the above-mentioned drawings. Specific embodiments

[0023] The following embodiments are described to assist in understanding this application, and the embodiments are not and should not in any way be construed as limiting the scope of protection of this application.

[0024] In the following description, those skilled in the art will recognize that throughout this discussion, components may be described as separate functional units (which may include sub-units), but those skilled in the art will recognize that various components or portions thereof may be divided into separate components or may be integrated together (including being integrated within a single system or component).

[0025] At the same time, the connections between components or systems are not intended to be limited to direct connections. Instead, the data between these components may be modified, reformatted, or otherwise changed by intermediate components. Additionally, additional or fewer connections may be used. It should also be noted that the terms "coupled", "connected", or "input" should be understood to include direct connections, indirect connections through one or more intermediate devices, and wireless connections.

[0026] Embodiment 1:

[0027] As Figure 1 shown, this is the front view of a deburring tool for this application; as Figure 2 shown, this is the top view of a deburring tool for this application; as Figure 3 shown, this is the perspective view of a deburring tool for this application.

[0028] A burr suppressing tool, comprising a cutting part 1 and a shank part 2. The free end of the shank part 2 is the top, and the connecting end of the shank part 2 and the cutting part 1 is the bottom. It is characterized in that: there are 2 cutting parts 1 connected to the bottom of the shank part 2. The adjacent 2 cutting parts 1 are axially symmetrically arranged with the central axis of the shank part 2. A transverse edge 3 is formed between the front ends of the adjacent 2 cutting parts 1. The cutting part 1 includes a main cutting edge 4, a flank 5, a secondary cutting edge 6, a chip groove 7, and a rake face 8. There are 2 rake faces 8 respectively arranged on the sides of the transverse edge 3. Each rake face 8 is a flank near the transverse edge 3, and each rake face 8 is a main cutting edge 4 far from the transverse edge 3. Each land 13 spirally extends from the main cutting edge 4 to the shank part 2. The chip groove 7 is arranged on the side of the land 13 close to the rake face 8. A secondary cutting edge 6 is arranged between each main cutting part 1 and each land 13. The secondary cutting edge 6 is used to reduce the incision and cutting force and remove burrs. The secondary cutting edge 6 is a rounded corner edge.

[0029] The radial angle of the rounded corner edge is 15°.

[0030] A chip pocket 9 is also arranged between the main cutting edge 4 and the chip groove 7, which plays a role in increasing the chip removal space and helping the chips to be discharged smoothly.

[0031] An auxiliary cutting edge 10 is also arranged between the secondary cutting edge 6 and the main cutting edge 4 for assisting cutting.

[0032] The main cutting edge 4 is arranged in the form of a small plane, which is resistant to impact and has higher stability, realizing long service life and stable machining.

[0033] An anti-interference surface 11 is also connected between the flank 5 and the secondary cutting edge 6 to prevent collision interference between surfaces during machining.

[0034] A transition surface 12 is also arranged between the land 13 and the anti-interference surface 11, which plays a role of transition and guiding.

[0035] The width of the land 13 near the transition surface 12 and the secondary cutting edge 6 is smaller than the width of the land 13 near the shank part 2.

[0036] The transverse edge 3 and the main cutting edge 4 in the adjacent 2 cutting parts 1 form a C-shaped tip, which reduces the drill bit runout and has a good centering effect.

[0037] Advantages of the present utility model: The present utility model provides a deburring tool. The cutting part 1 includes a main cutting edge 4, a flank 5, a secondary cutting edge 6, a chip groove 7, and a rake face 8. There are 2 rake faces 8 respectively arranged on the sides of the chisel edge 3. Each rake face 8 is a flank near the chisel edge 3, and each rake face 8 is a main cutting edge 4 far from the chisel edge 3. Each land 13 spirally extends from the main cutting edge 4 to the shank 2. The chip groove 7 is arranged on the side of the land 13 close to the rake face 8. A secondary cutting edge 6 is provided between each main cutting part 1 and each land 13. The secondary cutting edge 6 is used for... The secondary cutting edge 6 is a rounded corner edge. By means of the secondary cutting edge 6 with a rounded corner edge, the incision and cutting force are reduced, and secondary cutting is performed to prevent burrs from escaping, so as to achieve zero burr residue to the greatest extent; The chisel edge 3 and the main cutting edges 4 in the adjacent 2 cutting parts 1 form a C-shaped tip, reducing the drill bit runout and having good centering effect; An anti-interference surface 11 is also connected between the flank 5 and the secondary cutting edge 6 to prevent collision interference between surfaces during machining.

[0038] Although the present application has disclosed multiple aspects and embodiments, other aspects and embodiments will be obvious to those skilled in the art. Without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. The multiple aspects and embodiments disclosed in the present application are only used for illustration, and they are not intended to limit the present application. The actual protection scope of the present application is subject to the claims.

Claims

1. A burr-suppressing tool, comprising a cutting part (1) and a handle part (2). The free end of the handle part (2) is the top, and the connecting end of the handle part (2) and the cutting part (1) is the bottom. It is characterized in that: Two cutting parts (1) are connected to the bottom of the shank (2). The two adjacent cutting parts (1) are axially symmetrically arranged with respect to the central axis of the shank (2). A transverse edge (3) is formed between the front ends of the two adjacent cutting parts (1). The cutting part (1) includes a main cutting edge (4), a flank (5), a secondary cutting edge (6), a chip flute (7), and a rake face (8). Two rake faces (8) are respectively arranged on the sides of the transverse edge (3). Each rake face (8) is a flank near the transverse edge (3), and each rake face (8) is a main cutting edge (4) far from the transverse edge (3). Each land (13) spirally extends from the main cutting edge (4) to the shank (2). The chip flute (7) is arranged on the side of the land (13) close to the rake face (8). A secondary cutting edge (6) is arranged between each main cutting part (1) and each land (13). The secondary cutting edge (6) is used to reduce the cutting notch and cutting force and remove burrs. The secondary cutting edge (6) is a rounded corner edge.

2. The deburring tool according to claim 1, characterized in that: The radial angle of the rounded corner edge is 15°.

3. The deburring tool according to claim 1, wherein: A chip pocket (9) is further arranged between the main cutting edge (4) and the chip flute (7), which plays a role in increasing the chip evacuation space and helping the chips to be discharged smoothly.

4. The deburring tool according to claim 1, characterized in that: An auxiliary cutting edge (10) is further arranged between the secondary cutting edge (6) and the main cutting edge (4) for assisting in cutting.

5. The deburring tool according to claim 1, characterized in that: The main cutting edge (4) is arranged in the form of a small plane, which is resistant to impact and has higher stability, realizing long service life and stable machining.

6. The deburring tool according to claim 1, wherein: An anti-interference surface (11) is further connected between the flank (5) and the secondary cutting edge (6) to prevent collision interference between surfaces during machining.

7. The deburring tool according to claim 6, characterized in that: A transition surface (12) is further arranged between the land (13) and the anti-interference surface (11), which plays a role of transition and guiding.

8. The deburring tool according to claim 7, wherein: The width of the land (13) near the transition surface (12) and the secondary cutting edge (6) is smaller than the width of the land (13) near the shank (2).

9. The deburring tool according to claim 1, wherein: The transverse edge (3) and the main cutting edge (4) in the two adjacent cutting parts (1) form a C-shaped tip, which reduces the drill bit runout and has a good centering effect.

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