Multi-purpose cutting tool for cutting

Abstract

The utility model discloses a multipurpose cutter for cutting, which comprises a cutter handle and a cutter body which are connected with each other and are coaxially arranged. Wherein a plurality of right-handed cutting edges are arranged on the periphery of the cutter body, each cutting edge comprises a front end edge, a front circumferential edge, a rear end edge and a rear circumferential edge which are sequentially connected from front to back, an R angle is arranged at the joint of the rear end edge and the rear circumferential edge, and the edge of the front end edge gradually extends towards the outer side in an inclined mode from the front end of the cutter body to the front circumferential edge. And the included angle between the edge of the front end edge and the central axis of the cutter body is 43-45 degrees. According to the utility model, through the arrangement of the front end edge, the front circumferential edge, the rear end edge and the rear circumferential edge, the working procedures of reaming, C-angle chamfering and R-angle chamfering can be completed, the trouble of replacing the cutter halfway is reduced, and the machining precision and the production efficiency of products are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cutter technical field especially is concerned with a kind of cutting machining multipurpose cutter. BACKGROUND

[0002] At present, the machining of hole in the field of machining usually adopts drill bit drilling, is reamed to hole by reamer, finally uses chamfering tool to chamfer hole, and it needs to frequently change tool processing in this process, resulting in low processing efficiency, and after replacing tool, it is difficult to eliminate the repeated positioning error of workpiece or tool, and it is difficult to guarantee workpiece structure precision. SUMMARY

[0003] The utility model aims at providing a kind of technical scheme to solve the above problems to overcome the above situation.

[0004] A kind of cutting machining multipurpose cutter, including the shank and tool body connected, tool body and shank coaxial arrangement;Wherein, the outer periphery of tool body is equipped with multiple right-handed setting cutting edges, cutting edge includes the front end blade, front peripheral blade, rear end blade and rear peripheral blade connected in order from front to back, the junction of rear end blade and rear peripheral blade is equipped with R angle, from the front end of tool body to front peripheral blade, the blade edge of front end blade gradually extends to outside, the included angle between the blade edge of front end blade and the central axis of tool body is 43~45 °.

[0005] As a further scheme of the utility model: the number of cutting edges is two, and two cutting edges form two rows of chip grooves.

[0006] As a further scheme of the utility model: arc transition portion is arranged between shank and tool body, and the included angle between two sides of arc transition portion is 30 °.

[0007] As a further scheme of the utility model: the diameter of the circle where front peripheral blade is located is greater than the diameter of the circle where rear peripheral blade is located, the diameter of the circle where front peripheral blade is located is 1.16 mm, and the diameter of the circle where rear peripheral blade is located is 0.8 mm.

[0008] As a further scheme of the utility model: the helix angle of cutting edge is 25 °.

[0009] As a further scheme of the utility model: the rake angle of front peripheral blade is 4 °, the first relief angle of front peripheral blade is 12 °, and the second relief angle of front peripheral blade is 25 °.

[0010] As a further scheme of the utility model: the first relief angle blade surface width of front peripheral blade is 0.08 mm, and the second relief angle blade surface width of front peripheral blade is 0.24 mm.

[0011] As a further scheme of the utility model: the included angle between the blade edge of front end blade and the central axis of tool body is 45 °.

[0012] As a further aspect of the present application: the first relief angle of the front edge is 12°, and the second relief angle of the front edge is 25°.

[0013] Compared with the prior art, the utility model has the advantages that: through the setting of the front edge, the front peripheral edge, the rear edge, the rear peripheral edge and the R angle, the utility model can complete the processes of reaming, reverse C angle and reverse R angle, reduces the trouble of changing tools in the middle, and improves the machining precision and production efficiency of products.

[0014] The additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter in the description. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0016] Figure 1 is a structural schematic diagram of the present application.

[0017] Figure 2 is a structural schematic diagram of the cutting edge part of the present application.

[0018] Figure 3 is a structural schematic diagram of the cutting edge part of the present application.

[0019] Figure 4 is Figure 3 is a local enlarged view of A in the present application.

[0020] Figure 5 is a local sectional structural schematic diagram of the front edge of the present application.

[0021] In the figure: 1, handle, 2, cutter body, 3, cutting edge, 4, chip removal groove, 5, arc transition part, 31, front edge, 32, front peripheral edge, 33, rear edge, 34, rear peripheral edge, 35, R angle. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0023] Please refer to Figures 1-5 In the utility model embodiment, a multipurpose cutting tool for cutting machining, comprising a connected shank 1 and tool body 2, tool body 2 and shank 1 coaxial arrangement;Wherein, the outer periphery of tool body 2 is provided with a plurality of right-handed cutting edge 3, cutting edge 3 includes by front to rear connection front end edge 31, front peripheral edge 32, rear end edge 33 and rear peripheral edge 34, the junction of rear end edge 33 and rear peripheral edge 34 is equipped with R angle 35, from the front end of tool body 2 to front peripheral edge 32, the edge of front end edge 31 gradually extends to the outside, the included angle e between the edge of front end edge 31 and the central axis of tool body 2 is 43-45 °.

[0024] The tool is used, and front end edge 31 is used for the C angle of the hole edge of the front of the workpiece, and front peripheral edge 32 is used for reaming the hole, and rear end edge 33, rear peripheral edge 34 and R angle 35 are used for the R angle 35 of the hole edge of the back of the workpiece, so that, the utility model discloses through the setting of front end edge 31, front peripheral edge 32, rear end edge 33 and rear peripheral edge 34, can complete the process of reaming, C angle and R angle 35, reduces the trouble of changing tool in the middle of the way, improves the machining precision and production efficiency of product, and the whole tool is made of high-strength hard alloy material, and the surface of cutting edge 3 is attached with aluminum chromium nitride coating, which provides strength and stability for cutting edge 3, to ensure that the tool will not be damaged or broken in the cutting process.

[0025] The number of cutting edges 3 is two, and two cutting edges 3 form two rows of chip grooves 4 between the two cutting edges 3, so that the cutting chips generated during machining of the workpiece can be discharged through the chip grooves 4, thereby avoiding entanglement of the cutting chips with the tool or blockage of the machining area, and improving the machining efficiency and surface quality, and in some embodiments, the number of cutting edges 3 can be three.

[0026] An arc-shaped transition part 5 is arranged between the shank 1 and the tool body 2, and the included angle a between the two side edges of the arc-shaped transition part 5 is 30 °. By arranging the arc-shaped transition part 5, the stability of the connection between the tool body 2 and the shank 1 can be enhanced.

[0027] The diameter of the circle on which the front peripheral edge 32 lies is greater than the diameter of the circle on which the rear peripheral edge 34 lies, the diameter of the circle on which the front peripheral edge 32 lies is 1.16 mm, and the diameter of the circle on which the rear peripheral edge 34 lies is 0.8 mm.

[0028] The helix angle of the cutting edge 3 is 25 °.

[0029] The rake angle b of the front peripheral edge 32 is 4 °, the first relief angle c of the front peripheral edge 32 is 12 °, and the second relief angle d of the front peripheral edge 32 is 25 °.

[0030] The first relief angle land width of the front peripheral edge 32 is 0.08 mm, and the second relief angle land width of the front peripheral edge 32 is 0.24 mm.

[0031] The included angle e between the blade edge of the front blade 31 and the central axis of the tool body 2 is 45°.

[0032] The first clearance angle f of the front blade 31 is 12°, and the second clearance angle g of the front blade 31 is 25°.

[0033] The total length of the tool is 50 mm, the total length of the front blade 31 and the front peripheral blade 32 is 0.73 mm, the diameter of the shank 1 is 4 mm, and the length from the front end of the tool body 2 to the front end of the arc transition part 5 is 2.75 mm.

[0034] Through reasonable size setting, the tool is more smooth in the cutting process, the size precision and the cutting efficiency are improved, the chip and the tool are prevented from adhering, the workpiece surface is smoother, meanwhile, the tool edge is effectively prevented from breaking, and the service life is prolonged.

[0035] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point, the embodiments should be regarded as exemplary and non-restrictive, the scope of the utility model is defined by the appended claims instead of the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the utility model.

Claims

1. A multi-purpose cutting tool for cutting machining, characterized in that, The tool shank and the tool body are coaxially arranged; The outer periphery of the tool body is provided with a plurality of right-handed cutting edges, which include a front end edge, a front peripheral edge, a rear end edge and a rear peripheral edge connected in sequence from front to rear.

2. A multi-purpose cutting tool according to claim 1, characterized in that: The number of cutting edges is two, and two rows of chip grooves are formed between the two cutting edges.

3. A multi-purpose cutting tool according to claim 1, characterized in that: An arc-shaped transition portion is arranged between the tool shank and the tool body, and the included angle between the two side edges of the arc-shaped transition portion is 30°.

4. A multi-purpose cutting tool according to claim 1, characterized in that: The diameter of the circle on which the front peripheral edge lies is greater than the diameter of the circle on which the rear peripheral edge lies.

5. A multi-purpose cutting tool according to claim 1, characterized in that: The helix angle of the cutting edge is 25°.

6. A multi-purpose cutting tool according to claim 1, characterized in that: The rake angle of the front peripheral edge is 4°, the first relief angle of the front peripheral edge is 12°, and the second relief angle of the front peripheral edge is 25°.

7. A multi-purpose cutting tool according to claim 1, characterized in that: The first relief surface width of the first relief angle of the front peripheral edge is 0.08 mm, and the second relief surface width of the second relief angle of the front peripheral edge is 0.24 mm.

8. A multi-purpose cutting tool according to claim 1, characterized in that: The included angle between the edge of the front end edge and the central axis of the tool body is 45°.

9. A multi-purpose cutting tool according to claim 1, characterized in that: The first relief angle of the front end edge is 12°, and the second relief angle of the front end edge is 25°.

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