CN208680625U

CN208680625U - For processing the milling cutter of plastics

Info

Publication number: CN208680625U
Application number: CN201821311758.7U
Authority: CN
Inventors: 李雪林
Original assignee: Nanjing Duote Tools Co Ltd
Current assignee: Nanjing Duote Tools Co Ltd
Priority date: 2018-08-14
Filing date: 2018-08-14
Publication date: 2019-04-02
Anticipated expiration: 2028-08-14

Abstract

The utility model discloses a kind of for processing the milling cutter of plastics, it applies in milling cutter field, solving traditional milling cutter largely is made of for cutting metal material, when being applied to plastic processing, the technical issues of roughness of product requirement is often not achieved, its key points of the technical solution are that a kind of for processing the milling cutter of plastics, including knife handle；The knife handle is equipped with knife core, and spiral winding has at least two major cutting edges on the knife core, and reinforcement part is equipped between the major cutting edge and the knife core, and the knife core is equipped with far from the end face of the knife handle and holds sword correspondingly with the major cutting edge；The range that the diameter d1 of the knife core accounts for the ratio of the diameter d2 of the major cutting edge is 75% to 85%；Having the technical effect that for having keeps the integral strength of milling cutter higher, reduces the vibration of milling cutter, and the plastic product surface processed is smooth, can satisfy the requirement of the product of higher roughness requirements.

Description

For processing the milling cutter of plastics

Technical field

The utility model relates to milling cutter fields, in particular to for processing the milling cutter of plastics.

Background technique

In medical field, many medical instruments need to adopt made of plastic, and roughness requirements of medical apparatus surface Higher, traditional milling cutter is made of largely that product is often not achieved and wants when being applied to plastic processing for cutting metal material The roughness asked, it is therefore desirable to cutter is designed again.

Utility model content

The purpose of the utility model is to provide a kind of for processing the milling cutter of plastics, its advantage is that the plastic product processed Surface is smooth, can satisfy the requirement of the product of higher roughness requirements.

The above-mentioned technical purpose of the utility model has the technical scheme that a kind of for processing plastics Milling cutter, including knife handle；

The knife handle is equipped with knife core, and spiral winding has at least two major cutting edges, the major cutting edge and institute on the knife core It states and is equipped with reinforcement part between knife core, the knife core is equipped with far from the end face of the knife handle and holds correspondingly with the major cutting edge Sword；The range that the diameter d1 of the knife core accounts for the ratio of the diameter d2 of the major cutting edge is 75% to 85%.

Through the above technical solutions, being connected with knife core on knife handle, knife core is equipped at least two major cutting edges, major cutting edge spiral It is wrapped on the periphery of knife core, so that major cutting edge is bonded with workpiece always, stock removal action when using major cutting edge cutting workpiece It is coherent, preferably avoid the generation of tool marks；Reinforcement part, and the diameter d1 of knife core and operator are equipped between major cutting edge and knife core The ratio of the diameter d2 of sword is 75% to 85%, preferably increases the structural strength of milling cutter entirety, reduces major cutting edge in skiver Vibration when part avoids the case where forming chatter mark on workpiece.One end on knife core far from knife handle is equipped with end sword, and end sword makes Axial feeding processing can be carried out in cutting workpiece, same milling cutter is carried out different sides to workpiece add so as to use Work, and then reduce the case where replacing cutter, the error generated again to knife is avoided, and connect tool marks, it is further to improve The flatness of workpiece surface.

The utility model is further arranged to: chip space is equipped between the major cutting edge and the knife core.

Through the above technical solutions, chip space be used for during cutting workpiece, by the clast cut guide to It far from major cutting edge, preferably avoids clast and covers at major cutting edge, so that blade is kept clean as new, can preferably cut Workpiece, avoid plucking, scratch situations such as generation, further improve the flatness of workpiece surface.

The utility model is further arranged to: the junction between the chip space and the end sword is equipped with chip removal mouth.

Through the above technical solutions, the chip removal mouth between chip space and end sword, so that when using end sword to work pieces process, The clast machined away by end sword can preferably be discharged from chip removal mouth along chip space towards the direction far from end sword, avoid clast It is deposited at the sword of end, it is ensured that the cleaning at the sword of end ensure that the progress that subsequent processing can continue.

The utility model is further arranged to: the angle β of the end sword and the knife wire mandrel is 83 degree.

Through the above technical solutions, the angle between end sword and knife wire mandrel is 83 degree, when end sword processing and knife wire mandrel When vertical plane, holding the angle of sword and workpiece surface is 7 degree, when so that end sword being cut, can preferably be cut into work In part surface.

The utility model is further arranged to: the direction that the end sword is directed away from cutting edge is extended with buffering suface.

Through the above technical solutions, end sword is extended with buffering suface far from the direction of cutting edge, the strong of end sword is preferably strengthened Degree reduces tipping, turned situation generation, to preferably improve the service life of end sword.

The utility model is further arranged to: the major cutting edge and the end sword have been crossed to form point of a knife.

Through the above technical solutions, major cutting edge and end sword have intersected to form point of a knife, so that when processing groove, it is ensured that vertical It is right angle transition between face and horizontal plane；But also major cutting edge and end sword are sharper, in cutting workpiece, can preferably cut Enter into workpiece.

The utility model is further arranged to: the angular range of the anterior angle γ o of the major cutting edge is 31 degree to 33 degree, described The angular range of the relief angle α o of major cutting edge is 12 degree to 14 degree.

Through the above technical solutions, the angle of operator angle of cutting edge is 30 degree to 35 degree, the angle for edge clearance angle of operating is 10 degree To 15 degree；When the angle of operate angle of cutting edge and relief angle is smaller, the cutting edge of major cutting edge is more blunt, but intensity is higher；Work as major cutting edge When the angle of anterior angle and relief angle is bigger, the cutting edge of major cutting edge is sharper, but cutting edge strength can reduce, and curling, tipping easily occurs The case where；When taking the angle value of above-mentioned anterior angle and relief angle, in the case that major cutting edge can guarantee structural strength more fortunately, Meet the requirement of sharpness simultaneously.

The utility model is further arranged to: the ratio that the diameter d1 of the knife core accounts for the diameter d2 of the major cutting edge is 80%。

Through the above technical solutions, when the ratio that the diameter d1 of knife core accounts for the diameter d2 of major cutting edge is 80%, better While guaranteeing knife cored structure intensity, the cutting depth of major cutting edge also preferably ensure that, to further improve cutting Efficiency, with cutting quality.

The utility model is further arranged to: the angle of the anterior angle γ o of the major cutting edge is 31 degree, after the major cutting edge Angle α o is 13 degree.

Through the above technical solutions, the angle of the anterior angle γ o of major cutting edge is 31 degree, major cutting edge is sharper, preferably mentions High stock-removing efficiency；The relief angle α o of major cutting edge is 13 degree, preferably reduces abrasion of the major cutting edge to workpiece surface, preferably mentions The high surface quality of workpieces processing；Anterior angle γ o and relief angle α o enables major cutting edge preferably to meet cutting engineering plastics etc. Flexible material, and can preferably ensure that stock-removing efficiency and cutting quality.

The utility model is further arranged to: being equipped with polishing layer on the major cutting edge, the end sword.

Through the above technical solutions, being equipped with polishing layer on major cutting edge and end sword, polishing layer improves major cutting edge and end sword Cutting edge and blade surface on flatness so that major cutting edge or end sword in cutting workpiece, avoid there is scratchs, plucking etc. shows As, it is ensured that the surface processed is more smooth, more smooth.

In conclusion the utility model has the following beneficial effects:

1, the diameter d1 of knife core accounts for the 80% of the diameter d2 of major cutting edge, reinforcement part is additionally provided between major cutting edge and knife core, preferably The structural strength for improving milling cutter entirety, during avoiding workpieces processing, knife core occur vibration and lead to workpiece surface Uneven situation；

2, knife core is equipped with end sword far from one end of knife handle, and holds and intersected to form point of a knife between sword and major cutting edge, so that The utility model can carry out the cutting of the feeding on axis direction between, do not need additional cutter and processed, avoided more Tool changing tool and generate connect knife mark；And preferably ensure that the vertical plane of processing and the junction of horizontal plane are right angle.

Detailed description of the invention

Fig. 1 is the whole structural schematic diagram of the present embodiment；

Fig. 2 is the structural schematic diagram of the section of the major cutting edge of the present embodiment；

Fig. 3 is the structural schematic diagram of the end sword of the present embodiment；

Fig. 4 is the major cutting edge of the present embodiment and the structural schematic diagram of end sword junction；

Fig. 5 is the structural schematic diagram of the polishing layer of the present embodiment.

Appended drawing reference: 1, knife handle；2, knife core；3, major cutting edge；4, sword is held；5, chip space；6, chip removal mouth；7, buffering suface；8, Point of a knife；9, polishing layer；10, reinforcement part.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

Embodiment:

It is a kind of for processing the milling cutter of plastics, including knife handle 1 with reference to Fig. 1 and Fig. 2, knife core 2, knife core are extended on knife handle 1 Spiral winding has major cutting edge 3 on 2 periphery, and major cutting edge 3 is along the circumferential direction uniformly provided with two, in 3 cutting workpiece of major cutting edge When, it can be ensured that the cutting edge of major cutting edge 3 is bonded with the surface of workpiece always, to uniformly cut workpiece, is avoided Desultory cutting is connected not transition and the uneven situation that generates；The diameter d1 of knife core 2 accounts for 3 diameter d2 of major cutting edge 80%, reinforcement part 10 is equipped between major cutting edge 3 and knife core 2, the connection preferably strengthened between major cutting edge 3 and knife core 2 is strong Degree, to preferably enhance the integral strength of the utility model；Knife handle 1, major cutting edge 3, knife core 2, reinforcement part 10 one at Type forms, so that the integral strength of the utility model is more preferable.

With reference to Fig. 2, the angle of the anterior angle γ o of major cutting edge 3 is preferably 31 degree, so that major cutting edge 3 is sharper, so as to The cutting workpiece being more easier, preferably improves stock-removing efficiency；The relief angle α o of major cutting edge 3 is 13 degree, is reduced and workpiece table Face friction, and cooperate anterior angle γ o, so that major cutting edge 3 is in the case where guaranteeing sharpness, moreover it is possible to guarantee that it is preferable strong Degree.

With reference to Fig. 1 and Fig. 3, knife core 2 is equipped with end sword 4 far from one end of knife handle 1, and end sword 4 and major cutting edge 3 correspond, end Sword 4 and major cutting edge 3 are crossed to form point of a knife 8, in cutting workpiece；The feeding on axis direction directly can be carried out to workpiece to add Work can preferably carry out the cutting of end face, can also carry out the cutting of side, so as to preferably slot to workpiece, The processing of the features such as hole milling, and ensure that the transition of vertical plane and horizontal plane is right angle transition.

With reference to Fig. 1 and Fig. 3, chip space 5 is equipped between major cutting edge 3 and knife core 2, chip space 5 is also spirally wrapped around knife On core 2, the junction of chip space 5 and end sword 4 is equipped with chip removal mouth 6, and chip removal mouth 6 is from the center of knife core 2 to far from 2 axis of knife core Direction tilts down；When cutting workpiece, the clast among close knife core 2 machined away by end sword 4 is from chip removal mouth 6 along this row Slot 5 is considered to be worth doing to the direction of knife handle 1 far from end sword 4；Clast at point of a knife 8 is directly moved along chip space 5 to the direction of knife handle 1, At far from end sword 4, clast can preferably be blown off workpiece surface, preferably be avoided by gas blow pipe on cooperation lathe Talus accumulation ensure that subsequent cutting quality and efficiency at the sword 4 of end.

With reference to Fig. 3 and Fig. 4, the angle β of the blade surface and 2 axis of knife core of holding sword 4 is 83 degree, that is, when the end processing of sword 4 and When the vertical workpiece planarization of 2 axis of knife core, the angle of end sword 4 and workpiece planarization is 7 degree, is cut when using end sword 4 to plane When cutting, the material for capableing of better workpiece surface is removed.It holds sword 4 to be extended with buffering suface 7 far from the side of its cutting edge, buffers The angle δ of face 7 and 2 axis of knife core is less than β, and δ is preferably 70 degree；So that buffering suface 7 will not be with workpiece surface in cutting workpiece Contact will not influence cutting of the end sword 4 to workpiece；But also can preferably enhance the intensity of end sword 4, it avoids that tipping occurs, Turned situation.

With reference to Fig. 5, major cutting edge 3, end sword 4(such as Fig. 3) blade surface on be equipped with polishing layer 9, polishing layer 9 makes major cutting edge 3 It is more smooth, smooth with the blade surface of end sword 4(such as Fig. 3), in cutting workpiece, when blade surface and workpiece contact, reduce to workpiece Plucking is caused, the phenomenon that scratch.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but As long as all by the protection of Patent Law in the scope of the claims of the utility model.

Claims

1. a kind of for processing the milling cutter of plastics, including knife handle (1)；

It is characterized in that, the knife handle (1) is equipped with knife core (2), spiral winding has at least two major cutting edges on the knife core (2) (3), reinforcement part (10) are equipped between the major cutting edge (3) and the knife core (2), the knife core (2) is far from the knife handle (1) End face is equipped with holds sword (4) with the major cutting edge (3) correspondingly；The diameter d1 of the knife core (2) accounts for the major cutting edge (3) Diameter d2 ratio range be 75% to 85%.

2. according to claim 1 for processing the milling cutter of plastics, which is characterized in that the major cutting edge (3) and the knife Chip space (5) are equipped between core (2).

3. according to claim 2 for processing the milling cutter of plastics, which is characterized in that the chip space (5) and the end Junction between sword (4) is equipped with chip removal mouth (6).

4. according to claim 3 for processing the milling cutter of plastics, which is characterized in that the end sword (4) and the knife core (2) the angle β of axis is 83 degree.

5. according to claim 3 for processing the milling cutter of plastics, which is characterized in that the end sword (4) is directed away from sword The direction of mouth is extended with buffering suface (7).

6. according to claim 1 for processing the milling cutter of plastics, which is characterized in that the major cutting edge (3) and the end Sword (4) has been crossed to form point of a knife (8).

7. according to claim 1 for processing the milling cutter of plastics, which is characterized in that the anterior angle γ o of the major cutting edge (3) Angular range be 30 degree to 35 degree, the angular range of the relief angle α o of the major cutting edge (3) is 10 degree to 15 degree.

8. according to claim 1 for processing the milling cutter of plastics, which is characterized in that the diameter of the knife core (2) accounts for institute The ratio for stating the diameter of major cutting edge (3) is 80%.

9. according to claim 1 for processing the milling cutter of plastics, which is characterized in that the anterior angle γ o of the major cutting edge (3) Angle be 31 degree, the relief angle α o of the major cutting edge (3) is 13 degree.

10. according to claim 1 for processing the milling cutter of plastics, which is characterized in that the major cutting edge (3), the end Polishing layer (9) are equipped on sword (4).