CN208680623U - A kind of staged milling cutter - Google Patents

Abstract

The utility model relates to a kind of staged milling cutters, including outer knife bar, the top of outer knife bar is equipped with outer cutter head, the inside of outer knife bar is equipped with sliding cavity, the medial surface of sliding cavity is equipped with sliding slot, interior knife bar is additionally provided in sliding cavity, the top of interior knife bar is equipped with interior cutter head, and the lateral surface of interior knife bar is equipped with the strip sliding block being adapted to sliding slot.The staged milling cutter of the utility model can efficiently beat stepped hole.

Description

A kind of staged milling cutter

Technical field

The utility model relates to a kind of milling cutter more particularly to a kind of staged milling cutters.

Background technique

Milling cutter is for Milling Process, the rotary cutter with one or more cutters tooth.When work each cutter tooth successively between Cut the surplus of workpiece with having a rest.Milling cutter is mainly used for processing plane, step, groove, forming surface and cutting workpiece on milling machine Deng.Only one general cutter head of existing milling cutter, in processing shoulder hole since stepped hole has the hole there are two different inner diameters, because This needs the milling cutter of two kinds of specifications to process respectively to workpiece surface, and to process stepped hole, this mode of operation is more numb It is tired or need replacing cutter head or directly process workpiece on the lathe with different milling cutters, perforating efficiency compared with It is low.

In view of the above shortcomings, the designer, is actively subject to research and innovation, to found a kind of new structural ladder Formula milling cutter makes it with more the utility value in industry.

Utility model content

In order to solve the above technical problems, the purpose of the utility model is to provide the ladders that one kind can efficiently beat stepped hole Formula milling cutter.

The top of the staged milling cutter of the utility model, including outer knife bar, outer knife bar is equipped with outer cutter head, the inside of outer knife bar Equipped with sliding cavity, the medial surface of the sliding cavity is equipped with sliding slot, is additionally provided with interior knife bar in sliding cavity, the top of interior knife bar is equipped with Interior cutter head, the lateral surface of the interior knife bar are equipped with the strip sliding block being adapted to the sliding slot.

Further, the staged milling cutter of the utility model, the outer knife bar and interior knife bar are connected by screw to.

Further, the staged milling cutter of the utility model, the sliding cavity extend to outer knife bar from the top surface of outer knife bar Bottom surface, the bottom end of the interior knife bar protrudes out the bottom surface of outer knife bar.

Further, the staged milling cutter of the utility model, further includes clamping device, the clamping device include ontology, The lock sleeve being threadedly coupled with ontology, the collet being located within the body, the end face of the ontology are equipped with the first locking hole, and described first Locking hole is bellmouth, and the first locking hole stub end, close to lock sleeve side, the lock sleeve is equipped with and is adapted to ontology Accommodation groove, the medial surface of accommodation groove is equipped with internal screw thread, and accommodating groove bottom is equipped with the second locking hole, and second locking hole is Bellmouth, and the stub end of the second locking hole is close to ontology side, the medial surface of the second locking hole are equipped with locking slot, and second Defining flange is additionally provided on the medial surface of locking hole, one end of the collet is the first butt being adapted to first locking hole Circular cone, the other end of collet are the second frustum of a cone being adapted to second locking hole, and the middle part of collet is and the limit The locating slot of flange adaptation, the inside of collet are equipped with the collet inner hole that the other end is extended to from collet one end, the collet inner hole One end be adapted to the outer knife bar, the other end of collet inner hole is adapted to the interior knife bar.

Further, the staged milling cutter of the utility model, the interior knife bar, outer knife bar, ontology, collet, lock sleeve are equal There is stainless steel material to be made.

According to the above aspect of the present invention, the utility model at least has the following advantages: the staged milling cutter of the utility model, outer knife The setting of the components such as bar, outer cutter head, interior knife bar, interior cutter head enables the staged milling cutter of the utility model easily to process Stepped hole or counterbore.Specifically, operator is first according to opposite between knife bar and outer knife bar in the size adjusting of stepped hole Then distance fixes interior knife bar and outer knife bar, so that interior cutter head and outer cutter head reach and make a reservation for external finally by dedicated Collet fixes staged milling cutter, wherein interior knife bar drives interior cutter head rotation, outer knife bar drives outer cutter head to rotate, interior tool bit diameter Less than outer tool bit diameter and interior cutter head is located on front side of outer cutter head, and when work, interior cutter head mills out the lesser hole of internal diameter, while outer cutter head Mill out the biggish hole of internal diameter, operator is not necessarily to tool changing in process, can be realized the processing of stepped hole, processing efficiency compared with It is high.Operator is by adjusting the relative distance of interior knife bar and outer guide rod, it can be achieved that the processing of different depth stepped hole.

In conclusion the staged milling cutter of the utility model can efficiently beat stepped hole.

The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model Art means, and can be implemented in accordance with the contents of the specification, below on the preferred embodiment of the present invention and the accompanying drawings in detail It describes in detail bright as after.

Detailed description of the invention

Fig. 1 is the connection schematic diagram of outer knife bar, interior knife bar, outer cutter head, interior cutter head；

Fig. 2 is the structural schematic diagram of interior knife bar and interior cutter head；

Fig. 3 is the top view of outer cutter head；

Fig. 4 is the structural schematic diagram of locking device；

Fig. 5 is the structural schematic diagram of ontology；

Fig. 6 is the structural schematic diagram of lock sleeve；

Fig. 7 is the structural schematic diagram of collet.

In figure, 1: outer knife bar；2: outer cutter head；3: sliding cavity；4: sliding slot；5: interior knife bar；6: interior cutter head；7: strip sliding block； 8: ontology；9: lock sleeve；10: collet；11: the first locking holes；12: accommodation groove；13: the second locking holes；14: locking slot；15: limit Position flange；16: the first frustum of a cones；17: the second frustum of a cones；18: locating slot；19: collet inner hole.

Specific embodiment

With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.

Referring to Fig. 1 to Fig. 7, a kind of staged milling cutter of one preferred embodiment of the utility model, including outer knife bar 1, outer knife The top of bar is equipped with outer cutter head 2, and the inside of outer knife bar is equipped with sliding cavity 3, and the medial surface of sliding cavity is equipped with sliding slot 4, sliding cavity It is inside additionally provided with interior knife bar 5, the top of interior knife bar is equipped with interior cutter head 6, and it is sliding that the lateral surface of interior knife bar is equipped with the strip being adapted to sliding slot Block 7.

Specifically, operator is first according to the relative distance in the size adjusting of stepped hole between knife bar and outer knife bar, So that interior cutter head and outer cutter head reach and make a reservation for external, then interior knife bar and outer knife bar are fixed, finally by special carrier Staged milling cutter is fixed, wherein interior knife bar drives interior cutter head rotation, outer knife bar drives outer cutter head to rotate, and interior tool bit diameter is less than Outer tool bit diameter and interior cutter head are located on front side of outer cutter head, and when work, interior cutter head mills out the lesser hole of internal diameter, while outer cutter head mills out The biggish hole of internal diameter, operator is not necessarily to tool changing in process, the processing of stepped hole can be realized, processing efficiency is higher.Behaviour Make personnel by adjusting the relative distance of interior knife bar and outer guide rod, it can be achieved that the processing of different depth stepped hole.

Preferably, the staged milling cutter of the utility model, outer knife bar and interior knife bar are connected by screw to.

Preferably, the staged milling cutter of the utility model, sliding cavity extend to the bottom of outer knife bar from the top surface of outer knife bar Face, the bottom end of interior knife bar protrude out the bottom surface of outer knife bar.

Preferably, the staged milling cutter of the utility model, further includes clamping device, clamping device includes ontology 8 and this The lock sleeve 9 of body threaded connection, the collet 10 being located within the body, the end face of ontology are equipped with the first locking hole 11, the first locking hole For bellmouth, and the first locking hole stub end, close to lock sleeve side, lock sleeve is equipped with the accommodation groove 12 being adapted to ontology, The medial surface of accommodation groove is equipped with internal screw thread, and accommodating groove bottom is equipped with the second locking hole 13, and the second locking hole is bellmouth, and The stub end of second locking hole is equipped with locking slot 14 close to ontology side, the medial surface of the second locking hole, the second locking hole Defining flange 15 is additionally provided on medial surface, one end of collet is the first frustum of a cone 16 being adapted to the first locking hole, collet The other end is the second frustum of a cone 17 being adapted to the second locking hole, and the middle part of collet is the locating slot being adapted to defining flange 18, the inside of collet is equipped with the collet inner hole 19 that the other end is extended to from collet one end, and one end of collet inner hole and outer knife bar are suitable Match, the other end of collet inner hole is adapted to interior knife bar.

The setting of clamping device realizes the connection of staged milling cutter.Specifically, operator is by outer knife bar and interior knife bar Across the collet inner hole of collet, then lock sleeve is connect by screw thread with ontology, due to the first locking hole, the second locking hole Medial surface is inclined-plane, and multiple gap are equipped at intervals on the both ends side wall of collet, so that the both ends of collet have Certain elasticity, as lock sleeve is gradually close with ontology, the second frustum of a cone being adapted to the second locking hole is in lock sleeve The outer body of rod is locked under effect, interior body of rod lock drops in the first frustum of a cone being adapted to the first locking hole under the action of lock sleeve Tightly, operation is very easy.

Preferably, the staged milling cutter of the utility model, interior knife bar, outer knife bar, ontology, collet, lock sleeve have not Rust Steel material is made.

It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, those skilled in the art can be with other specific shapes Formula realizes the utility model.It therefore, in all respects, the embodiments should be taken as exemplary, and is non-limit Property processed, the protection scope of the utility model is indicated by the appended claims rather than the foregoing description.

In addition, the above is only the preferred embodiment of the utility model, it is not intended to limit the utility model, it should It points out, for those skilled in the art, without deviating from the technical principle of the utility model, may be used also To make several improvements and modifications, these improvements and modifications also should be regarded as the protection scope of the utility model.Meanwhile it should manage Solution, although this specification is described in terms of embodiments, but not each embodiment only includes an independent technical side Case, this description of the specification is merely for the sake of clarity, and those skilled in the art should be whole using specification as one Body, the technical solutions in the various embodiments may also be suitably combined, formed it will be appreciated by those skilled in the art that other implementation Mode.

Claims (5)

1. a kind of staged milling cutter, it is characterised in that: including outer knife bar, the top of outer knife bar is equipped with outer cutter head, outer knife bar it is interior Portion is equipped with sliding cavity, and the medial surface of the sliding cavity is equipped with sliding slot, is additionally provided with interior knife bar in sliding cavity, the top of interior knife bar is set There is interior cutter head, the lateral surface of the interior knife bar is equipped with the strip sliding block being adapted to the sliding slot.

2. staged milling cutter according to claim 1, it is characterised in that: the outer knife bar and interior knife bar are connected by screw It connects.

3. staged milling cutter according to claim 1, it is characterised in that: the sliding cavity is extended to from the top surface of outer knife bar The bottom end of the bottom surface of outer knife bar, the interior knife bar protrudes out the bottom surface of outer knife bar.

4. staged milling cutter according to claim 1, it is characterised in that: it further include clamping device, the clamping device packet Ontology, the lock sleeve being threadedly coupled with ontology, the collet being located within the body are included, the end face of the ontology is equipped with the first locking hole, First locking hole is bellmouth, and the first locking hole stub end is close to lock sleeve side, the lock sleeve be equipped with The accommodation groove of ontology adaptation, the medial surface of accommodation groove are equipped with internal screw thread, and accommodating groove bottom is equipped with the second locking hole, and described second Locking hole is bellmouth, and the stub end of the second locking hole, close to ontology side, the medial surface of the second locking hole is equipped with lock Tight slot, defining flange is additionally provided on the medial surface of the second locking hole, and one end of the collet is to be adapted to first locking hole The first frustum of a cone, the other end of collet is the second frustum of a cone being adapted to second locking hole, and the middle part of collet is The locating slot being adapted to the defining flange, the inside of collet are equipped with the collet inner hole that the other end is extended to from collet one end, institute The one end for stating collet inner hole is adapted to the outer knife bar, and the other end of collet inner hole is adapted to the interior knife bar.

5. staged milling cutter according to claim 1, it is characterised in that: the interior knife bar, outer knife bar, ontology, collet, lock It is fixed to there is stainless steel material to be made.