Forming cutter
By designing a forming tool with a multi-functional cutting edge structure, the problem of frequent tool changes during workpiece side machining was solved, achieving high-precision and high-efficiency machining results and extending tool life.
Patent Information
- Application Number
- CN202423292748.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing technologies require frequent tool changes when milling the sides of workpieces, leading to problems such as accuracy errors and low processing efficiency.
Design a forming tool with a multi-functional cutting edge structure, including a lower edge, a front peripheral edge, an upper edge, a circular arc edge, and a rear peripheral edge, which can perform milling and rounding functions on the same tool, reduce the number of tool changes, and improve machining accuracy and efficiency.
The multi-functional cutting edge structure enables high precision and efficiency in machining the side of the workpiece, avoids precision errors caused by tool changes, extends tool life, and improves machining quality.
Smart Images
Figure CN223811599U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a cutter technical field especially is related to a forming cutter. BACKGROUND
[0002] When milling the side surface of the workpiece, the milling cutter is used to mill the side surface of the workpiece first, and then the chamfering cutter is replaced to round the milled workpiece, the machining procedure is complex, the cutter needs to be frequently replaced, and precision error of different degrees appears every time the cutter is replaced, thereby reducing the machining precision and the machining efficiency. SUMMARY
[0003] The utility model discloses to overcome above-mentioned situation deficiency, aims at providing a kind of technical scheme that can solve above-mentioned problem.
[0004] A kind of forming cutter, including handle and tool bit, tool bit includes coaxially connected cutting part and connecting part, connecting part is connected with handle, the outer periphery of cutting part is equipped with three left-handedly arranged tool body, tool body is equipped with cutting edge, cutting edge includes sequentially connected lower end edge, front peripheral edge, upper end edge, circular arc edge and rear peripheral edge from bottom to top, rear peripheral edge extends to connecting part, the diameter of the circle where front peripheral edge is located is greater than the diameter of connecting part.
[0005] As a further scheme of the utility model: the vertical width of the left end face of tool body is greater than the vertical width of the right end face of tool body, the upper end face of tool body is inclined downward relative to horizontal plane, the lower end face of tool body is inclined upward relative to horizontal plane.
[0006] As a further scheme of the utility model: the shear angle of tool body is 15 °, the blade inclination angle of tool body is 1.5 °.
[0007] As a further scheme of the utility model: chip flute between two adjacent tool bodies, chip flute extends to connecting part.
[0008] As a further scheme of the utility model: arc transition portion is arranged between handle and tool bit, the included angle between two sides of arc transition portion is 30 °.
[0009] As a further scheme of the utility model: the relief angle of lower end edge is 4 °.
[0010] As a further scheme of the utility model: the rake angle of front peripheral edge is 2.5 °, the first relief angle of front peripheral edge is 15 °, the second relief angle of front peripheral edge is 25 °, the third relief angle of front peripheral edge is 42 °.
[0011] As a further scheme of the utility model: the first relief angle of upper end edge, circular arc edge and rear peripheral edge is 15 °, the second relief angle of upper end edge, circular arc edge and rear peripheral edge is 25 °.
[0012] Compared with the prior art, the utility model discloses the beneficial effect is: the utility model discloses the setting of arc blade and rear week blade can be rounded to the workpiece simultaneously when processing the side of workpiece, need not change the chamfering of chamfering tool and carry out chamfering, guarantee the machining precision of workpiece, improve the processing efficiency.
[0013] The additional aspects and advantages of the utility model will be partly given in the following description, partly will become obvious from the following description, or be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description is only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings.
[0015] Fig. 1 It is the structure schematic diagram of the utility model.
[0016] Fig. 2 It is the part structure schematic diagram of the cutter body of the utility model.
[0017] Fig. 3 It is the part structure schematic diagram of the cutting edge of the utility model.
[0018] Fig. 4 It is the part structure schematic diagram of the upper end blade of the utility model.
[0019] Fig. 5 It is the part structure schematic diagram of the arc blade of the utility model.
[0020] Fig. 6 It is the part structure schematic diagram of the rear week blade of the utility model.
[0021] Fig. 7 It is the processing schematic diagram of the utility model.
[0022] In the drawing: 1, handle, 2, cutter head, 3, arc transition part, 4, chip removal groove, 21, cutting part, 22, connecting part, 23, cutter body, 231, cutting edge, 2311, lower end blade, 2312, front week blade, 2313, upper end blade, 2314, arc blade, 2315, rear week blade. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below, obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.
[0024] Please refer to Figs. 1-7 In the embodiments of the utility model, a forming cutter comprises a cutter handle 1 and a cutter head 2, the cutter head 2 comprises a cutting part 21 and a connecting part 22 which are coaxially connected, the connecting part 22 is connected with the cutter handle 1, three cutter bodies 23 which are left-handed are arranged at intervals on the outer periphery of the cutting part 21, the cutter body 23 is provided with a cutting edge 231, the cutting edge 231 comprises a lower end edge 2311, a front peripheral edge 2312, an upper end edge 2313, a circular arc edge 2314 and a rear peripheral edge 2315 which are sequentially connected from bottom to top, the rear peripheral edge 2315 extends to the connecting part 22, and the diameter of the circle where the front peripheral edge 2312 is located is greater than the diameter of the connecting part 22.
[0025] In use, the lower end edge 2311 can be used for machining the upper end surface of a workpiece, the front peripheral edge 2312, the lower end edge 2311 and the upper end edge 2313 can be used for machining the groove of the workpiece, the upper end edge 2313 can be used for machining the lower end surface of the workpiece, and the rear peripheral edge 2315 can be used for machining the side surface of the workpiece; when the side surface of the workpiece is machined, the circular arc edge 2314 can simultaneously round the corners of the workpiece, without the need of replacing a chamfering cutter to round the corners, so that the machining precision of the workpiece is ensured and the machining efficiency is improved.
[0026] The vertical width of the left end surface of the cutter body 23 is greater than the vertical width of the right end surface of the cutter body 23, the upper end surface of the cutter body 23 is downwardly inclined relative to the horizontal plane, and the lower end surface of the cutter body 23 is upwardly inclined relative to the horizontal plane. By adopting such a structural design, in the process of machining the workpiece, the upper end surface and the lower end surface of the cutter body 23 can be prevented from contacting the workpiece, so that a good air clearance effect is achieved, thereby reducing wear and heat accumulation, prolonging the service life of the cutter and improving the machining quality.
[0027] A chip removal groove 4 is arranged between two adjacent cutter bodies 23, the chip removal groove 4 extends to the connecting part 22, and the cutting chips generated during machining of the workpiece can be discharged through the chip removal groove 4, so that the cutting chips are prevented from winding around the cutter or blocking the machining area, thereby improving the machining efficiency and the surface quality.
[0028] The shear angle of the cutter body 23 is 15°, and the edge inclination angle of the cutter body 23 is 1.5°.
[0029] An arc-shaped transition part 3 is arranged between the cutter handle 1 and the cutter head 2, and the included angle a between the two side edges of the arc-shaped transition part 3 is 30°. By arranging the arc-shaped transition part 3, the stability of the connection between the cutter handle 1 and the cutter head 2 can be enhanced.
[0030] The clearance angle b of the lower end edge 2311 is 4°.
[0031] The rake angle c of the front peripheral edge 2312 is 2.5°, the first clearance angle d of the front peripheral edge 2312 is 15°, the second clearance angle e of the front peripheral edge 2312 is 25°, and the third clearance angle f of the front peripheral edge 2312 is 42°.
[0032] The first clearance angle g of the upper end edge 2313, the circular arc edge 2314 and the rear peripheral edge 2315 is 15°, and the second clearance angle h of the upper end edge 2313, the circular arc edge 2314 and the rear peripheral edge 2315 is 25°.
[0033] The total length of the tool is 50mm, the diameter of the shank 1 is 8mm, the diameter of the connecting portion 22 is 3.16mm, the diameter of the circle where the front peripheral edge 2312 is located is 8mm, and the vertical width of the left tool face of the tool body 23 is 0.9mm.
[0034] Through reasonable size setting, the tool is more smooth in the cutting process, and the size precision and cutting efficiency are improved, the chip and the tool are prevented from adhering, the workpiece surface is smoother, and the tool edge is effectively prevented from breaking, thereby prolonging the service life.
[0035] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be embraced therein.
Claims
1. A forming knife characterized in that, The utility model relates to a cutting tool, comprising: a shank; a head, the head comprising a cutting part and a connecting part coaxially connected, the connecting part being connected with the shank, and the cutting part being provided with three left-handed tool bodies at an outer periphery thereof, the tool bodies being provided with cutting edges, the cutting edges comprising, from bottom to top, a lower end edge, a front peripheral edge, an upper end edge, a circular arc edge and a rear peripheral edge, the rear peripheral edge extending to the connecting part, and the diameter of the front peripheral edge being greater than the diameter of the connecting part.
2. A forming tool as claimed in claim 1, characterised in that: The vertical width of the left end surface of the tool body is greater than the vertical width of the right end surface of the tool body, the upper end surface of the tool body is downwardly inclined relative to the horizontal plane, and the lower end surface of the tool body is upwardly inclined relative to the horizontal plane.
3. A forming tool as claimed in claim 1, characterised in that: The shear angle of the tool body is 15 DEG, and the edge inclination angle of the tool body is 1.5 DEG.
4. A forming tool as claimed in claim 1, characterised in that: A chip flute is arranged between two adjacent tool bodies, and the chip flute extends to the connecting part.
5. A forming tool as claimed in claim 1, characterised in that: An arc-shaped transition part is arranged between the shank and the head, and the included angle between the two side edges of the arc-shaped transition part is 30 DEG.
6. A forming tool as claimed in claim 1, characterised in that: The clearance angle of the lower end edge is 4 DEG.
7. A forming tool as claimed in claim 1, characterised in that: The rake angle of the front peripheral edge is 2.5 DEG, the first clearance angle of the front peripheral edge is 15 DEG, the second clearance angle of the front peripheral edge is 25 DEG, and the third clearance angle of the front peripheral edge is 42 DEG.
8. A forming tool as claimed in claim 1, characterised in that: The first clearance angles of the upper end edge, the circular arc edge and the rear peripheral edge are all 15 DEG, and the second clearance angles of the upper end edge, the circular arc edge and the rear peripheral edge are all 25 DEG.