CN216065724U - Equal-circular-blade cutter with key groove - Google Patents
Equal-circular-blade cutter with key groove Download PDFInfo
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- CN216065724U CN216065724U CN202122060426.4U CN202122060426U CN216065724U CN 216065724 U CN216065724 U CN 216065724U CN 202122060426 U CN202122060426 U CN 202122060426U CN 216065724 U CN216065724 U CN 216065724U
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Abstract
The utility model relates to an equal-circular-edge spline cutter which comprises a cutter bar, a cutter neck, a cutter head and a plurality of blades, wherein one end of the cutter bar is connected with one end of the cutter neck, the other end of the cutter neck is connected with the cutter head, the plurality of blades are arranged in an unequal angle mode by taking the center of the cutter head as a central point, one end of each blade is connected with the cutter head, the other end of each blade is provided with a cutting edge, a circular edge zone is arranged on the rear cutter face of each cutting edge, and the tops of the circular edge zones of the plurality of blades are located in the same circumferential plane. The round edge is added on the rear cutter face of the cutting edge of the milling cutter, so that the effective diameter of the cutter is guaranteed, the cutter can be repeatedly grinded and reused, the repeated utilization rate of a cutter bar is improved, the problems that the original cutter is easy to damage and break are solved, the use cost of the cutter is reduced, and the service life of the cutter is prolonged.
Description
Technical Field
The utility model relates to the technical field of cutter cutting, in particular to an equal-circle-edge cutter with a keyway.
Background
The semicircular key processing is a milling mode which is less used in the machining production process, the crankshaft core shaft end semicircular key multipurpose keyway milling cutter of the engine is processed and formed at one time and used for assembling an engine belt pulley and playing a limiting role, and the problems of vibration lines, burn and the like are often accompanied in the keyway milling cutter processing process. There are also the following problems:
(1) in the process of processing the semicircular key, the three-edge key groove milling cutter performs hobbing movement, the cutting edge of the cutter is gradually abraded along with the cutting, and the diameter of the cutter is reduced;
(2) the cutter is a one-time forming milling cutter, the diameter of the cutter is reduced after the cutter is worn, the cutter can be directly scrapped and cannot be polished for reuse, and the use cost of the cutter is increased.
Disclosure of Invention
The utility model provides an equal-circular-edge cutter with a key groove, and aims to solve the problems that the diameter of a three-edge milling cutter for processing a semi-circular key is reduced along with cutting, and the service life is short.
The utility model provides an equal-circular-edge spline cutter which comprises a cutter bar, a cutter neck, a cutter head and a plurality of blades, wherein one end of the cutter bar is connected with one end of the cutter neck, the other end of the cutter neck is connected with the cutter head, the plurality of blades are arranged in an unequal angle mode by taking the center of the cutter head as a central point, one end of each blade is connected with the cutter head, the other end of each blade is provided with a cutting edge, a circular edge zone is arranged on the rear cutter face of each cutting edge, and the tops of the circular edge zones of the plurality of blades are located in the same circumferential plane.
As a further improvement of the utility model, the diameter of the circumferential plane on which a plurality of the circular blade zones are located is consistent with the diameter of the guide rod.
As a further improvement of the utility model, a chip groove for discharging cutting materials is arranged between the adjacent blades.
As a further improvement of the utility model, a plurality of the blades are arranged at unequal angles of 5-7 degrees by taking the center of the cutter head as a central point.
As a further development of the utility model, the principal angling between the blade and the horizontal plane is in the range of 6 ° to 8 °.
As a further development of the utility model, at least five blades are provided.
The utility model has the beneficial effects that: the round edge is added on the rear cutter face of the cutting edge of the milling cutter, so that the effective diameter of the cutter is guaranteed, the cutter can be repeatedly grinded and reused, the repeated utilization rate of a cutter bar is improved, the problems that the original cutter is easy to damage and break are solved, the use cost of the cutter is reduced, and the service life of the cutter is prolonged.
Drawings
FIG. 1 is an overall view of the present invention;
fig. 2 is a front view of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in fig. 1-2, the utility model provides an equal-circle-edge spline-grooved knife, which comprises a knife bar 1, a knife neck 2, a knife head 3 and a plurality of blades 4, wherein one end of the knife bar 1 is connected with one end of the knife neck 2, the other end of the knife neck 2 is connected with the knife head 3, the plurality of blades 4 are arranged at unequal angles with the center of the knife head 3 as a central point, one end of each blade 4 is connected with the knife head 3, the other end of each blade 4 is provided with a cutting edge 5, the rear knife face of each cutting edge 5 is provided with a circle-edge strip 6, and the tops of the circle-edge strips 6 of the plurality of blades 4 are positioned in the same circumferential plane.
As an embodiment of the present invention, the diameter of the circumferential plane on which the plurality of circular lands 6 are located coincides with the diameter of the guide rod.
As another embodiment of the present invention, a chip discharge groove 7 for discharging a cutting material is provided between adjacent blades 4.
As another embodiment of the present invention, a plurality of the blades 4 are disposed at unequal angles of 5 ° to 7 ° with the center of the cutter head 3 as a center point.
As another embodiment of the utility model, the main deviation angle between the blade 4 and the horizontal plane is in the range of 6-8 °.
As another embodiment of the present invention, at least five blades 4 are provided.
The utility model provides an equal-circular-edge key groove cutter, which redesigns a cutting edge 5 of a key groove milling cutter through angle analysis of a cutter coping process, increases the design of a circular edge 6 on the rear cutter surface of the cutting edge 5 and ensures the effective diameter of a cutter. After the cutter is worn, the process form of grinding the front cutter face is utilized, grinding and recycling can be carried out for many times, the recycling rate of a cutter bar is improved, the problems that an original cutter is easy to damage and break are solved, the use cost of the cutter is reduced, and the service life of the cutter is prolonged.
Compared with the conventional three-edge keyway milling cutter for processing a semicircular keyway, the keyway cutter provided by the utility model is provided with the circular margins 6 on the rear cutter faces of the cutting edges 5, as can be seen from fig. 2, the tops of a plurality of circular margins 6 are positioned in the same circumferential plane, and the diameter of the circumferential plane is consistent with that of the cutter bar 1, so that the effective diameter of the cutter can be kept on the same cylindrical surface. After the cutter is worn, the cutter is repaired by utilizing the process form of grinding the front cutter face, so that the cutter can be repeatedly utilized, the use efficiency of the cutter is improved, and the production cost is reduced.
The cutting edge 5 is designed to be unequal staggered-edge skewed teeth, the plurality of blades 4 are arranged at unequal angles of 5-7 degrees by taking the center of the cutter head 3 as a central point, the optimal angle is 5 degrees, the phenomenon that machining profile tolerance is out of tolerance due to resonance during machining can be avoided, the main deflection angle range between the blades 4 and the horizontal plane is 6-8 degrees, the optimal angle is 6 degrees, full-edge workpiece contact cutting is avoided, cutting resistance is reduced, and the groove bottom chattering caused by vibration during cutter machining is reduced. Meanwhile, the chip grooves 7 are formed between the adjacent blades 4, so that cutting materials generated by cutting can be removed, and the cutting effect of the cutter is ensured.
The foregoing is a more detailed description of the utility model in connection with specific preferred embodiments and it is not intended that the utility model be limited to these specific details. For those skilled in the art to which the utility model pertains, several simple deductions or substitutions can be made without departing from the spirit of the utility model, and all shall be considered as belonging to the protection scope of the utility model.
Claims (6)
1. The utility model provides an equal circular blade key slot sword which characterized in that, includes cutter arbor, sword neck, tool bit and a plurality of blade, the one end of cutter arbor with the one end of sword neck is connected, the other end of sword neck with the tool bit is connected, a plurality of the blade with the center of tool bit is as the central point, is the setting of unequal angle, the one end of blade with the tool bit is connected, the other end of blade is equipped with the cutting edge, the back knife face of cutting edge is equipped with circular blade area, a plurality of the top of the circular blade area of blade is located same circumferential plane.
2. The isoland spline cutter of claim 1, wherein a plurality of said lands lie in a circumferential plane having a diameter corresponding to the diameter of said shank.
3. The constant-land spline-edged knife according to claim 2, wherein a chip discharge groove for discharging the cutting material is provided between adjacent ones of the blades.
4. The constant-circular-edge spline cutter according to claim 3, wherein a plurality of the blades are arranged at unequal angles of 5 ° to 7 ° with the center of the cutter head as a center point.
5. The isoknife splined according to claim 4 wherein said insert has a principal angle of declination from the horizontal in the range of 6 ° to 8 °.
6. The isoknife spline groove cutting insert according to claim 5, wherein at least five inserts are provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122060426.4U CN216065724U (en) | 2021-08-30 | 2021-08-30 | Equal-circular-blade cutter with key groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122060426.4U CN216065724U (en) | 2021-08-30 | 2021-08-30 | Equal-circular-blade cutter with key groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216065724U true CN216065724U (en) | 2022-03-18 |
Family
ID=80673042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122060426.4U Active CN216065724U (en) | 2021-08-30 | 2021-08-30 | Equal-circular-blade cutter with key groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216065724U (en) |
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2021
- 2021-08-30 CN CN202122060426.4U patent/CN216065724U/en active Active
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