CN208033806U - A kind of alloy reamer with four cutting knife faces - Google Patents

Abstract

The utility model discloses a kind of alloy reamers with four cutting knife faces to be provided with diameter the first knife face incremented by successively, the second knife face, third knife face and the 4th knife face from left to right from cutter head from one end far from the knife bar；It when to multigroup step hole machined, is processed and formed at one time, reduces processing course error, there is no step circular arc machined trace, each step dimension is more precisely consistent；Four groups of hole machineds are once completed, reduces tool change time and cutter dry running time, is improved significantly in processing efficiency.

Description

A kind of alloy reamer with four cutting knife faces

Technical field

The utility model belongs to machining tool technical field, and in particular to a kind of alloy with four cutting knife faces Reamer.

Background technology

Currently, in the processing to multigroup stepped hole in part as shown in Figure 1, mostly uses multigroup hole division of labor step milling and add Work need to use multigroup boring cutter to distinguish Boring in the higher hole of required precision；Four groups of Kong Yousi respectively process boring cutter, every time After tool changing, there are cutter clamping errors, and step depth can be caused inconsistent, and especially there are machined trace, circular arc in step junction Transition is not round and smooth.In terms of efficiency：Four groups of Kong Yousi respectively process boring cutter, need to carry out four tool changing, the dead time is more, adds Work efficiency rate is low.

Invention content

The utility model provides a kind of alloy reamer with four cutting knife faces for the drawbacks described above of the prior art.

The purpose of this utility model is achieved through the following technical solutions：

A kind of alloy reamer with four cutting knife faces, includes the knife bar of cutter head and cylindrical structure；The cutter head with The knife bar is integrally formed using hard alloy；The cutter head is coaxially disposed with the knife bar；Even circumferential is set on the cutter head It is equipped with multiple cutting edges；The cutter head from one end far from the knife bar, be provided with from left to right diameter it is incremented by successively the One knife face, the second knife face, third knife face and the 4th knife face；Rounding off is formed between first knife face and second knife face First Transition face, the angle between the First Transition face and the axial line of the knife bar are 20 °；Second knife face with it is described Rounding off forms the second transition face, the angle between second transition face and the axial line of the knife bar between third knife face It is 20 °；Rounding off forms third transition face between the third knife face and the 4th knife face；The third transition face and institute It is 20 ° to state the angle between the axial line of knife bar；Rounding off forms the 4th transition between 4th knife face and the knife bar Face；Angle between 4th transition face and the axial line of the knife bar is 20 °.

Further, the cutting edge is set as six；Between the two neighboring cutting edge non-working surface and working face Angle is 70 °；The angle of inclination on each cutting edge working face top is 12 °.

Further, the opposite handle of cutting blade bounce of first knife face, the second knife face, third knife face and the 4th knife face exists Within 0.005；The knife bar outer circle bounce handle relatively is within 0.005.

Compared with prior art, the utility model has at least the following advantages：

The alloy reamer with four cutting knife faces of the utility model, from cutter head from one end far from the knife bar, It is provided with diameter the first knife face incremented by successively, the second knife face, third knife face and the 4th knife face from left to right；To multigroup stepped hole It when processing, is processed and formed at one time, reduces processing course error, there is no step circular arc machined trace, each step dimension is more smart It is accurate consistent；Four groups of hole machineds are once completed, reduces tool change time and cutter dry running time, is obviously carried in processing efficiency It is high.

Description of the drawings

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.

Fig. 1 is the structural schematic diagram of parts to be processed.

Fig. 2 is the structural schematic diagram front view of the alloy reamer with four cutting knife faces of the utility model；

Fig. 3 is the left view of Fig. 2.

Reference sign：1- cutter heads；2- knife bars；The first knife faces of 3-；The second knife faces of 4-；5- third knife faces；The 4th knives of 6- Face；7- First Transitions face；The second transition faces of 8-；9- third transition faces；The 4th transition faces of 10-；11- cutting edges.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all Embodiment.

Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts The every other embodiment obtained, shall fall within the protection scope of the present invention.

It is to be appreciated that the directional instruction of institute in the utility model embodiment（Such as up, down, left, right, before and after ...） It is only used for explaining in a certain particular pose（As shown in the picture）Under relative position relation, motion conditions etc. between each component, such as When the fruit particular pose changes, then directionality instruction also correspondingly changes correspondingly.

The description for being such as related to " first ", " second " in the present invention is used for description purposes only, and should not be understood as It indicates or implies its relative importance or implicitly indicate the quantity of indicated technical characteristic.Define as a result, " first ", The feature of " second " can explicitly or implicitly include at least one of the features.

In the description of the present invention, the meaning of " plurality " is at least two, such as two, three etc., unless otherwise Clear specific restriction.

In the present invention unless specifically defined or limited otherwise, term " connection ", " fixation " etc. should do broad sense reason Solution, for example, " fixation " may be a fixed connection, may be a detachable connection, or integral；It can be mechanical connection, also may be used To be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary the connection inside two elements Or the interaction relationship of two elements, unless otherwise restricted clearly.It for the ordinary skill in the art, can be with The concrete meaning of above-mentioned term in the present invention is understood as the case may be.

In addition, the technical solution between each embodiment of the utility model can be combined with each other, but must be with ability Domain those of ordinary skill can be implemented as basis, will be understood that when the combination of technical solution appearance is conflicting or cannot achieve The combination of this technical solution is not present, also not within the protection domain of the requires of the utility model.

As shown in Figure 2 and Figure 3, a kind of alloy reamer with four cutting knife faces, including cutter head 1 and cylindrical structure Knife bar 2；The cutter head 1 is integrally formed with the knife bar 2 using hard alloy；The cutter head 1 is coaxially disposed with the knife bar 2； Even circumferential is provided with multiple cutting edges 11 on the cutter head 1；The cutter head 1 from one end far from the knife bar 2, from a left side to The right side is provided with diameter the first knife face 3 incremented by successively, the second knife face 4, third knife face 5 and the 4th knife face 6；First knife face 3 Rounding off forms First Transition face 7, the axial line in the First Transition face 7 and the knife bar 2 between second knife face 4 Between angle be 20 °；Rounding off forms the second transition face 8 between second knife face 4 and the third knife face 5, described Angle between second transition face 8 and the axial line of the knife bar 2 is 20 °；The third knife face 5 and the 4th knife face 6 it Between rounding off form third transition face 9；Angle between the third transition face 9 and the axial line of the knife bar 2 is 20 °； Rounding off forms the 4th transition face 10 between 4th knife face 6 and the knife bar 2；4th transition face 9 and the knife Angle between the axial line of bar 2 is 20 °.

Wherein, the cutting edge 11 is set as six；Between two neighboring 11 non-working surface of the cutting edge and working face Angle be 70 °；The angle of inclination on each 11 working face top of the cutting edge is 12 °.

Wherein, the opposite handle of cutting blade bounce of first knife face 3, the second knife face 4, third knife face 5 and the 4th knife face 6 Within 0.005；The opposite handle of 2 outer circle of knife bar bounce is within 0.005.

In use, blowing clean knife bar position and cutter chuck endoporus with high pressure air rifle；Knife bar 2 is fastened on collet, is filled Enter specified tool magazine position；After workpiece bores pre- hole, call in the cutter, run by specified cutting parameter, cutter at the uniform velocity rotates, into Lattice are continuously finished the machining in four groups of holes；It is processed and formed at one time, reduces processing course error, there is no step circular arcs to connect Tool marks mark, each step dimension are more precisely consistent；Four groups of hole machineds are once completed, when reducing tool change time and cutter dry running Between, it is improved significantly in processing efficiency.

More than, the only preferable specific implementation mode of the utility model, but the protection domain of utility model is not limited to This, any one skilled in the art within the technical scope disclosed by the utility model, the variation that can be readily occurred in Or replace, it should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with right Subject to the protection domain of claim.

Claims (3)

1. a kind of alloy reamer with four cutting knife faces, includes the knife bar of cutter head and cylindrical structure；The cutter head and institute Knife bar is stated to be integrally formed using hard alloy；The cutter head is coaxially disposed with the knife bar, which is characterized in that circle on the cutter head It is evenly arranged with multiple cutting edges week；The cutter head is provided with diameter successively from left to right from one end far from the knife bar Incremental the first knife face, the second knife face, third knife face and the 4th knife face；It is round and smooth between first knife face and second knife face Transition forms First Transition face, and the angle between the First Transition face and the axial line of the knife bar is 20 °；Second knife Rounding off forms the second transition face between face and the third knife face, the axial line of second transition face and the knife bar it Between angle be 20 °；Rounding off forms third transition face between the third knife face and the 4th knife face；The third mistake The angle crossed between face and the axial line of the knife bar is 20 °；Rounding off is formed between 4th knife face and the knife bar 4th transition face；Angle between 4th transition face and the axial line of the knife bar is 20 °.

2. the alloy reamer with four cutting knife faces according to claim 1, which is characterized in that the cutting edge setting It is six；Angle between the two neighboring cutting edge non-working surface and working face is 70 °；Each described cutting edge work The angle of inclination on face top is 12 °.

3. the alloy reamer with four cutting knife faces according to claim 1 or 2, which is characterized in that first knife Face, the second knife face, third knife face and the 4th knife face the opposite handle of cutting blade bounce within 0.005；The knife bar outer circle is jumped Dynamic opposite handle is within 0.005.