Efficient milling cutter for special groove profile and relief angle

Abstract

The utility model discloses an efficient milling cutter with a special groove profile and a relief angle, which comprises a circumferential blade and a chip flute, a plurality of grooves are formed on the side wall of the chip flute, the grooves are distributed along the length direction of the chip flute, the grooves are positioned on the front cutter surface of the circumferential blade, a plurality of tangent planes are formed on the rear cutter surface of the circumferential blade, and the tangent planes are distributed along the length direction of the chip flute. And the tangent plane is distributed along the length direction of the rear cutter surface of the circumferential blade. The utility model has the beneficial effects that the plurality of grooves are formed on the side wall of the chip flute, so that chips are broken, the chips are smoothly discharged, and the metal removal rate is improved. A plurality of tangent planes are formed on the rear cutter surface of the circumferential blade and are distributed along the length direction of the rear cutter surface of the circumferential blade, so that the contact area between the rear cutter surface of the circumferential blade and a part can be conveniently reduced through the tangent planes, the friction force caused by machining is reduced, the heat productivity of the cutter is reduced, and the vibration of the cutter in the cutting process can be reduced; and the requirement of high-speed milling can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of milling cutter structures, in particular to a high-efficiency milling cutter with special groove type and back angle. Background Art

[0002] In mechanical processing, it is common to use machine tools to cut workpieces, such as lathes, grinders, drilling machines, milling machines, etc., which can perform circular turning, surface grinding, drilling and end face cutting on workpieces. Among them, milling machines use milling cutters to perform rotating cutting operations.

[0003] The existing milling cutter has continuous chip removal during machining, and the chip removal effect is poor. In addition, during the machining process, the back angle of the cutter continuously rubs against the workpiece and generates heat, which affects the chip cutting speed and is not suitable for high-speed machining. Summary of the invention

[0004] The utility model aims to provide a high-efficiency milling cutter with a special groove type and back angle, wherein a cutting surface is arranged on the back face of the peripheral blade to reduce the contact area between the back face of the peripheral blade and the part, thereby reducing the friction force used in processing, reducing the heat generated by the tool, and reducing the vibration of the tool during the cutting process, thereby achieving the requirement of high-speed milling processing.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme.

[0006] A high-efficiency milling cutter with a special groove type and back angle comprises a peripheral blade and a chip groove, wherein a plurality of grooves are formed on the side wall of the chip groove, the grooves are distributed along the length direction of the chip groove, the grooves are located on the front cutting edge of the peripheral blade, and a plurality of cut surfaces are formed on the back cutting edge of the peripheral blade, the cut surfaces are distributed along the length direction of the back cutting edge of the peripheral blade.

[0007] The utility model adopting the above scheme forms several grooves on the side wall of the chip groove, distributes the grooves along the length direction of the chip groove, and arranges the grooves on the front cutting face of the peripheral blade, so as to facilitate chip breaking, facilitate smooth chip removal, and improve the metal removal rate. Several cut surfaces are also formed on the back cutting face of the peripheral blade, so that the cut surfaces are distributed along the length direction of the back cutting face of the peripheral blade, so as to facilitate reducing the contact area between the back cutting face of the peripheral blade and the part through the cut surfaces, thereby reducing the friction during processing, reducing the heat generated by the tool, and reducing the vibration of the tool during the cutting process, so as to meet the requirements of high-speed milling processing.

[0008] Preferably, the chip groove is spiral in shape as a whole.

[0009] In this way, by setting each chip flute to be spiral in shape as a whole, resonance during machining with large cutting depth and high feed can be suppressed.

[0010] Preferably, the groove is rectangular as a whole, the grooves are evenly distributed along the length direction of the front cutting edge of the peripheral blade, and the depth of the grooves is 0.3 mm to 0.5 mm.

[0011] In this way, by setting the depth of the groove to 0.3 mm to 0.5 mm, chip breaking can be achieved without affecting the cutting strength of the peripheral edge.

[0012] Preferably, it also includes a bottom edge, and the bottom edge is arc-shaped.

[0013] Thus, by setting the bottom edge to an arc shape, the large resistance of the ordinary straight edge cutting in the same normal plane at the same time is avoided, and the resonance during large cutting depth and high feed processing is also suppressed.

[0014] Preferably, the back cutting surface of the bottom blade is composed of a large camber R and a small camber r.

[0015] In this way, by combining the large arc surface R and the small arc surface r of the bottom edge, it is easy to apply to a variety of machining operations, including dynamic milling and extreme ramping, while taking into account large cutting depth and high feed.

[0016] Preferably, each of the bottom edges and the back cutting surface of the bottom edge form an end tooth, and the angles of each of the end teeth are α, β, γ and δ respectively, and the angles of α, β, γ and δ are all different.

[0017] In this way, by setting the angles of each end tooth to α, β, γ and δ respectively, the angles of α, β, γ and δ are all different, so that the peaks and troughs of the cutting force are staggered during the instantaneous cutting process, and no resonance is generated, thereby avoiding chipping due to resonance.

[0018] Preferably, the number of end teeth is 4 to 6.

[0019] Preferably, the peripheral edge is spiral-shaped as a whole, and the milling spiral direction of the peripheral edge is the same as the spiral direction of the chip groove.

[0020] In this way, by setting the entire peripheral edge to a spiral shape and making the milling spiral direction of the peripheral edge the same as the spiral direction of the chip groove, it is easy to suppress resonance during large cutting depth and high feed processing.

[0021] Preferably, a plurality of the cutting surfaces are connected in pairs along the length direction of the back cutting surface of the peripheral cutting edge.

[0022] In this way, by connecting several of the cut surfaces in pairs along the length direction of the flank surface of the peripheral blade, it is convenient to reduce the contact area between the flank surface of the peripheral blade and the part through continuous cut surfaces, reduce the heat generated by the milling cutter, increase the service life of the milling cutter, and make it suitable for high-speed machining operations.

[0023] The beneficial effects of the utility model are as follows: by forming several grooves on the side wall of the chip groove, and distributing the grooves along the length direction of the chip groove, and also arranging the grooves on the front cutting face of the peripheral blade, the chips are broken, the chips are smoothly removed, and the metal removal rate is improved. Several facets are also formed on the back cutting face of the peripheral blade, and the facets are distributed along the length direction of the back cutting face of the peripheral blade, so that the contact area between the back cutting face of the peripheral blade and the part is reduced by the facets, thereby reducing the friction force during processing, reducing the heat generated by the tool, and reducing the vibration of the tool during the cutting process, so as to meet the requirements of high-speed milling processing. By setting the angles of each of the end teeth to α, β, γ and δ respectively, the angles of α, β, γ and δ are all different, so that the peaks and troughs of the cutting force are staggered during the instantaneous cutting process, and resonance will not be generated, so as to avoid chipping due to resonance. The bottom blade is set to an arc shape, and the chip groove is spiral as a whole, so as to avoid the large resistance of the ordinary straight blade edge when cutting simultaneously on the same normal plane, and also suppress the resonance during the large cutting depth and high feed processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of the utility model;

[0025] Figure 2 For this utility model Figure 1 Enlarged view of the middle K section;

[0026] Figure 3 It is a top view of the utility model. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the embodiments described.

[0028] The reference numerals in the drawings of the specification include: peripheral edge 1, groove 11, cut surface 12, chip groove 13, bottom edge 14.

[0029] The words "first", "second" and similar words used in the embodiments of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "one", "an" or "the" and similar words do not indicate a quantity limitation, but rather indicate the presence of at least one. Similarly, words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections or communication connections, whether direct or indirect.

[0030] Embodiment 1, as Figures 1 to 3As shown; a high-efficiency milling cutter with a special groove type and back angle, comprising a peripheral edge 1 and a chip groove 13, wherein a plurality of grooves 11 are formed on the side wall of the chip groove 13, wherein the grooves 11 are distributed along the length direction of the chip groove 13, wherein the grooves 11 are located on the front cutting edge of the peripheral edge 1, and a plurality of cutting surfaces 12 are formed on the back cutting edge of the peripheral edge 1, wherein the cutting surfaces 12 are distributed along the length direction of the back cutting edge of the peripheral edge 1.

[0031] See also Figure 1 The chip groove 13 is spiral in shape as a whole. Thus, by setting each chip groove 13 as a whole in a spiral shape, resonance during large cutting depth and high feed processing can be suppressed.

[0032] See also Figure 1 The groove 11 is rectangular in shape as a whole, and is evenly distributed along the length direction of the front cutting surface of the peripheral blade 1. The depth of the groove 11 is 0.3 mm to 0.5 mm. In this way, by setting the depth of the groove 11 to 0.3 mm to 0.5 mm, chip breaking is achieved without affecting the cutting strength of the peripheral blade 1.

[0033] See also Figure 1 and Figure 3 , and further comprises a bottom blade 14, wherein the bottom blade 14 is arc-shaped. Thus, by setting the bottom blade 14 to an arc shape, the large resistance of the common straight edge cutting in the same normal plane at the same time is avoided, and the resonance in the process of large cutting depth and high feed is also suppressed.

[0034] See also Figure 1 and Figure 2 The back face of the bottom edge 14 is composed of a large camber R and a small camber r. In this way, by combining the back face of the bottom edge 14 with a large camber R and a small camber r, it is convenient to be applied to a variety of machining operations, including dynamic milling and extreme ramping, and taking into account large cutting depth and high feed.

[0035] See also Figure 1 and Figure 3 Each of the bottom blades 14 and the back face of the bottom blade 14 form an end tooth, and the angles of each of the end teeth are α, β, γ and δ, and the angles of α, β, γ and δ are all different. In this way, by setting the angles of each of the end teeth to α, β, γ and δ, and the angles of α, β, γ and δ are all different, the peaks and troughs of the cutting force are staggered during the instantaneous cutting process, and resonance will not be generated, thereby avoiding chipping caused by resonance. The end teeth can be set to 4 to 6 according to actual needs.

[0036] See also Figure 1The peripheral blade 1 is spiral-shaped as a whole, and the milling spiral direction of the peripheral blade 1 is the same as the spiral direction of the chip groove 13. In this way, by setting the peripheral blade 1 as a whole in a spiral shape and making the milling spiral direction of the peripheral blade 1 the same as the spiral direction of the chip groove 13, it is convenient to suppress resonance during large cutting depth and high feed processing.

[0037] See also Figure 1 , a plurality of the cut faces 12 are connected in pairs along the length direction of the flank face of the peripheral blade 1. In this way, by connecting a plurality of the cut faces 12 in pairs along the length direction of the flank face of the peripheral blade 1, it is convenient to reduce the contact area between the flank face of the peripheral blade 1 and the part through continuous cut faces 12, reduce the heat generated by the milling cutter, increase the service life of the milling cutter, and be suitable for high-speed machining operations.

[0038] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A high-efficiency milling cutter with special groove type and clearance angle, characterized in that: The invention comprises a peripheral blade (1) and a chip groove (13), wherein a plurality of grooves (11) are formed on the side wall of the chip groove (13), wherein the grooves (11) are distributed along the length direction of the chip groove (13), and wherein the grooves (11) are located on the front cutting surface of the peripheral blade (1), and a plurality of cut surfaces (12) are formed on the rear cutting surface of the peripheral blade (1), wherein the cut surfaces (12) are distributed along the length direction of the rear cutting surface of the peripheral blade (1).

2. The high-efficiency milling cutter with special groove shape and clearance angle according to claim 1, characterized in that: The chip groove (13) is spiral in shape as a whole.

3. The high-efficiency milling cutter with special groove shape and clearance angle according to claim 1, characterized in that: The groove (11) is rectangular in shape as a whole, and is evenly distributed along the length direction of the front cutting edge of the peripheral cutting edge (1). The depth of the groove (11) is 0.3 mm to 0.5 mm.

4. The high-efficiency milling cutter with special groove shape and clearance angle according to claim 1, characterized in that: It also comprises a bottom blade (14), wherein the bottom blade (14) is arc-shaped.

5. The high-efficiency milling cutter with special groove shape and clearance angle according to claim 4, characterized in that: The back surface of the bottom blade (14) is composed of a large camber surface R and a small camber surface r.

6. The high-efficiency milling cutter with special groove shape and clearance angle according to claim 5, characterized in that: Each bottom edge (14) and the back face of the bottom edge (14) form an end tooth, and the angles of each end tooth are α, β, γ and δ respectively, and the angles of α, β, γ and δ are all different.

7. The high-efficiency milling cutter with special groove shape and clearance angle according to claim 6, characterized in that: The number of the end teeth is 4 to 6.

8. The high-efficiency milling cutter with special groove shape and clearance angle according to any one of claims 1 to 7, characterized in that: The peripheral blade (1) is spiral-shaped as a whole, and the milling spiral direction of the peripheral blade (1) is the same as the spiral direction of the chip groove (13).

9. The high-efficiency milling cutter with special groove shape and clearance angle according to any one of claims 1 to 7, characterized in that: A plurality of cutting surfaces (12) are connected in pairs along the length direction of the back cutting surface of the peripheral cutting edge (1).

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