CN218476061U - Multifunctional end milling cutter - Google Patents
Multifunctional end milling cutter Download PDFInfo
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- CN218476061U CN218476061U CN202223006290.XU CN202223006290U CN218476061U CN 218476061 U CN218476061 U CN 218476061U CN 202223006290 U CN202223006290 U CN 202223006290U CN 218476061 U CN218476061 U CN 218476061U
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Abstract
The utility model discloses a multi-functional end mill, including counter bore milling cutter and drilling milling cutter, counter bore milling cutter includes the counter bore handle of a knife and installs the counter bore cutting part in counter bore handle of a knife one end, the middle part of counter bore handle of a knife is equipped with the draw-in groove that the level runs through counter bore handle of a knife and counter bore cutting part, drilling milling cutter is including drilling handle of a knife, drilling neck and drilling cutting part, the drilling handle of a knife is through drilling neck and drilling cutting part fixed connection, and drilling handle of a knife activity alternates in the draw-in groove. This multi-functional end mill adopts the counter bore milling cutter and the drilling milling cutter of removable fraction, is convenient for change milling cutter according to the counter bore size, can bore the back earlier and expand to can treat the first half and the latter half of machined hole simultaneously and carry out the reaming and mill, thereby process out the counter bore of suitable size, can reduce process time, thereby improve work efficiency, and drilling milling cutter can use as end mill alone, and the function is various, convenient to use.
Description
Technical Field
The utility model relates to an end mill technical field specifically is a multi-functional end mill.
Background
The end milling cutter is the most used milling cutter on a numerical control machine tool, and cutting cutters are arranged on the cylindrical surface and the end surface of the end milling cutter and can be used for cutting simultaneously or independently; the milling cutter is mainly used for plane milling, groove milling, step surface milling and profiling milling.
In order to avoid the protrusion of the screw, a counter bore is usually machined in the surface of the workpiece, so that the head of the screw is sunk into the counter bore, thereby ensuring the flatness of the mounting plane. At present, the steps of processing counter bores through an end mill are mainly to drill holes first and then to ream the upper half part and the lower half part respectively; or the upper part of the counter bore is milled firstly, and then the middle part of the upper half part is drilled and reamed, so that the counter bore with the inverted convex pattern structure is machined. This kind of mode through end mill processing counter bore is more traditional, and the upper portion and the lower part of counter bore can not carry out reaming simultaneously and mill, and process time is long, and work efficiency is lower, and the end mill function is comparatively single moreover.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is overcome current defect, the utility model provides a multi-functional end mill, but adopt the counter bore milling cutter and the drilling milling cutter of split type, be convenient for change milling cutter according to the counter bore size, can bore before first and expand, and can treat the first half and the latter half of machined hole simultaneously and carry out the reaming and mill, thereby process out the counter bore of suitable size, can reduce process time, thereby improve work efficiency, and drilling milling cutter can use as end mill alone, the function is various, high durability and convenient use, can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a multi-functional end mill, includes counter bore milling cutter and drilling milling cutter, counter bore milling cutter includes the counter bore handle of a knife and installs the counter bore cutting part in counter bore handle of a knife one end, the middle part of counter bore handle of a knife is equipped with the draw-in groove that the level runs through counter bore handle of a knife and counter bore cutting part.
The drilling milling cutter comprises a drilling cutter handle, a drilling neck and a drilling cutting part, the drilling cutter handle is fixedly connected with the drilling cutting part through the drilling neck, and the drilling cutter handle is movably inserted into the clamping groove.
As an optimal technical scheme of the utility model, the one end that the drilling neck was kept away from to the drilling handle of a knife is equipped with the screw rod, threaded connection has the nut on the screw rod.
As an optimal technical scheme of the utility model, the longitudinal section of drilling handle of a knife and the longitudinal section of draw-in groove are the regular hexagon structure of equidimension.
As an optimal technical scheme of the utility model, the one end that the drilling neck was kept away from to the drilling handle of a knife is equipped with the inclined plane to the slope of drilling handle of a knife axis, and the contained angle of inclined plane and drilling handle of a knife axis is not more than sixty degrees.
As an optimal technical scheme of the utility model, the length of drilling handle of a knife is less than counter bore milling cutter's length, and the length of drilling handle of a knife and screw is greater than counter bore milling cutter's length.
As a preferred technical scheme of the utility model, the counter bore cutting part is less than the sword footpath L2 of drilling cutting part about the shortest distance L1 between two knife noses of central symmetry, and the sword footpath L3 of counter bore cutting part is greater than the sword footpath L2 of drilling cutting part.
As a preferred technical scheme of the utility model, the part that the drilling neck is close to the drilling cutting part is circular truncated cone type structure, and the part that the drilling neck is close to the drilling handle of a knife is cylindric structure, and the diameter that drilling cutting part one end was kept away from to the circular truncated cone equals cylindric diameter.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses the example multi-functional end mill selects the counter bore milling cutter and the drilling milling cutter of suitable size according to counter bore upper portion and lower part diameter difference, and the sword footpath of counter bore cutting part is L3, and the sword footpath of drilling cutting part is L2, and the counter bore size that needs to process upper portion and lower part diameter difference 2 L4= L3-L2 are convenient for mill the counter bore that the reaming processed needs once.
1. The multifunctional end mill provided by the utility model is characterized in that when the multifunctional end mill is processed, the drilling blade part is firstly contacted with the surface of a workpiece, and then the drilling blade part carries out drilling operation on the surface of the workpiece; when the counter bore cutting part is fed into contact with a workpiece, the counter bore cutting part carries out reaming operation on a hole drilled by the drilling cutting part in a downward drilling mode, so that a preliminary T-shaped hole is formed, and subsequent synchronous reaming operation is facilitated.
1. The utility model discloses the example multi-functional end mill, after the counter bore cutting part fed suitable degree of depth, the circular motion of the slow grow of diameter was done to the outside work piece of control in the horizontal direction, and the reaming operation is milled to the inner wall to the hole to the periphery sword of drilling cutting part and counter bore cutting part this moment, is convenient for do the reaming operation of size difference to the upper portion and the lower part of hole simultaneously.
1. The utility model discloses the multi-functional end mill of example adopts the counter bore milling cutter and the drilling milling cutter of removable fraction, is convenient for change milling cutter according to the counter bore size, can bore the back earlier and expand to can treat the first half and the latter half of machined hole simultaneously and carry out the reaming and mill, thereby process out the counter bore of suitable size, can reduce process time, thereby improve work efficiency, and drilling milling cutter can use as end mill alone, and the function is various, convenient to use.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic front view of the structure of FIG. 1;
FIG. 3 is a left side view schematic structural diagram of the milling cutter for the middle counter bore of the present invention;
fig. 4 is a left side view schematic structural diagram of the drilling milling cutter of the present invention;
fig. 5 is a schematic structural view of the counter bore processed by the present invention.
In the figure: 1 counter bore handle, 2 counter bore cutting part, 3 draw-in grooves, 4 drilling handle, 41 inclined planes, 5 drilling neck, 6 drilling cutting parts, 7 screw rods, 8 nuts.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a multi-functional end mill, includes counter bore milling cutter and drilling milling cutter, and counter bore milling cutter includes counter bore handle of a knife 1 and installs the counter bore cutting part 2 in 1 one end of counter bore handle of a knife, and the middle part of counter bore handle of a knife 1 is equipped with the draw-in groove 3 that the level runs through counter bore handle of a knife 1 and counter bore cutting part 2.
The drilling milling cutter comprises a drilling cutter handle 4, a drilling neck part 5 and a drilling cutting part 6, the drilling cutter handle 4 is fixedly connected with the drilling cutting part 6 through the drilling neck part 5, the drilling cutter handle 4 is movably inserted into the clamping groove 3, a counter bore milling cutter and a drilling milling cutter with proper sizes are selected according to the diameter difference of the upper part and the lower part of a counter bore, the drilling milling cutter and the counter bore milling cutter move downwards in the rotating process, a T-shaped hole can be drilled, and subsequent reaming operation is facilitated.
During machining, the drilling edge part 6 is firstly contacted with the surface of a workpiece, and the drilling edge part 6 performs drilling operation on the surface of the workpiece; when the counter bore cutting part 2 feeds and contacts with the workpiece, the counter bore cutting part 2 carries out reaming operation to the hole drilled by the drilling cutting part 6 in a downward drilling mode, so that a preliminary T-shaped hole is formed, and subsequent synchronous reaming operation is facilitated.
After the counter bore cutting part 2 feeds suitable degree of depth, the circular motion of the slow grow of diameter is made to the outside work piece of control in the horizontal direction, and the peripheral sword of drilling cutting part 6 and counter bore cutting part 2 carries out milling reaming operation to the inner wall in hole this moment, is convenient for do the reaming operation of size difference to the upper portion and the lower part of hole simultaneously.
Preferably, one end, far away from the drilling neck 5, of the drilling tool shank 4 is provided with a screw 7, the screw 7 is in threaded connection with a nut 8, the drilling tool shank 4 is inserted into the clamping groove 3, the nut 8 is in threaded connection with the screw 7, and the nut 8 is in contact with the drilling tool shank 4, so that the counter bore milling cutter and the drilling milling cutter are installed and connected.
Preferably, the longitudinal section of the drilling knife handle 4 and the longitudinal section of the clamping groove 3 are of regular hexagon structures with the same size, so that the drilling knife handle 4 is prevented from rotating inside the clamping groove 3.
Preferably, the end of the drilling tool shank 4, which is far away from the drilling neck 5, is provided with an inclined surface 41 inclined to the axis of the drilling tool shank 4, and the included angle between the inclined surface 41 and the axis of the drilling tool shank 4 is not more than sixty degrees, so that the drilling tool shank 4 can be conveniently inserted into the clamping groove 3.
Preferably, the length of the drilling cutter handle 4 is smaller than that of the counter bore milling cutter, and the length of the drilling cutter handle 4 and the length of the screw 7 are larger than that of the counter bore milling cutter, so that the nut 8 can be in contact with the counter bore cutter handle 1 when rotating on the screw 7.
Preferably, the shortest distance L1 between two cutter points of the counter bore edge part 2 which are symmetrical about the center is smaller than the cutter diameter L2 of the drilling edge part 6, the cutter diameter L3 of the counter bore edge part 2 is larger than the cutter diameter L2 of the drilling edge part 6, a counter bore milling cutter and a drilling milling cutter with proper sizes are selected according to the diameter difference between the upper part and the lower part of the counter bore, the cutter diameter of the counter bore edge part 2 is L3, the cutter diameter of the drilling edge part 6 is L2, the diameter difference between the upper part and the lower part of the counter bore with the size to be processed is 2 × L4= L3-L2, and the required counter bore is processed by one-time milling and reaming.
Preferably, the part of the drilling neck 5 close to the drilling edge part 6 is in a frustum-shaped structure, the part of the drilling neck 5 close to the drilling tool shank 4 is in a cylindrical structure, the diameter of the frustum far away from the end of the drilling edge part 6 is equal to the cylindrical diameter, so that the diameter of the drilling edge part 6 is larger than the diameter of the circumscribed circle of the drilling tool shank 4, the drilling edge part 6 and the counter bore edge part 2 have a certain overlapping part, and the drilling effect can be improved.
The constructor should select the plate or the workpiece with proper hardness to process according to the hardness of the countersink milling cutter and the drilling milling cutter, so as to avoid processing the metal plate with high hardness, thereby causing the breakage of the countersink milling cutter and the drilling milling cutter.
When in use:
selecting a counter bore milling cutter and a drilling milling cutter with proper sizes according to the diameter difference of the upper part and the lower part of the counter bore, wherein the edge diameter of a counter bore edge part 2 is L3, the edge diameter of a drilling edge part 6 is L2, and the diameter difference of the upper part and the lower part of the counter bore with the size to be processed is 2 L4= L3-L2;
inserting the drilling cutter handle 4 into the clamping groove 3, connecting the nut 8 with the screw 7 in a threaded manner, and enabling the nut 8 to be in contact with the drilling cutter handle 4, so that the counter bore milling cutter and the drilling milling cutter are installed and connected;
mounting the counter bore cutter handle 1 on a milling machine through a spring jacket;
during machining, the drilling edge part 6 is firstly contacted with the surface of a workpiece, and the drilling edge part 6 performs drilling operation on the surface of the workpiece;
when the counter bore edge part 2 is fed to be in contact with a workpiece, the counter bore edge part 2 performs reaming operation on a hole drilled by the drilling edge part 6 in a downward drilling mode;
after the counter bore edge part 2 is fed to a proper depth, the external workpiece is controlled to do circular motion with slowly increased diameter in the horizontal direction, and at the moment, the drilling edge part 6 and the peripheral edge of the counter bore edge part 2 perform milling and reaming operations on the inner wall of the hole, so that the counter bore shown in fig. 5 is processed through one milling and reaming operation.
The utility model discloses a counter bore milling cutter and drilling milling cutter of removable fraction are convenient for change milling cutter according to the counter bore size, can bore the back earlier and expand to can treat the first half and the latter half of machined hole simultaneously and carry out the reaming and mill, thereby process out the counter bore of suitable size, can reduce process time, thereby improve work efficiency, and drilling milling cutter can use as end milling cutter alone, and the function is various, convenient to use.
The non-public part of the utility model is the prior art, and the concrete structure, the material and the working principle are not detailed. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a multi-functional end mill, includes counter bore milling cutter and drilling milling cutter, its characterized in that: the countersink milling cutter comprises a countersink cutter handle (1) and a countersink cutting part (2) installed at one end of the countersink cutter handle (1), wherein a clamping groove (3) horizontally penetrating through the countersink cutter handle (1) and the countersink cutting part (2) is formed in the middle of the countersink cutter handle (1);
the drilling milling cutter comprises a drilling cutter handle (4), a drilling neck (5) and a drilling cutting part (6), wherein the drilling cutter handle (4) is fixedly connected with the drilling cutting part (6) through the drilling neck (5), and the drilling cutter handle (4) is movably inserted into the clamping groove (3).
2. The multi-function end mill according to claim 1, wherein: the drill hole is characterized in that a screw rod (7) is arranged at one end, away from the drill hole neck (5), of the drill hole cutter handle (4), and a nut (8) is connected to the screw rod (7) in a threaded mode.
3. The multi-function end mill according to claim 1, wherein: the longitudinal section of the drilling knife handle (4) and the longitudinal section of the clamping groove (3) are of regular hexagon structures with the same size.
4. The multi-function end mill according to claim 1, wherein: one end, far away from the drilling neck (5), of the drilling cutter handle (4) is provided with an inclined surface (41) inclined to the axis of the drilling cutter handle (4), and the included angle between the inclined surface (41) and the axis of the drilling cutter handle (4) is not more than sixty degrees.
5. The multi-function end mill according to claim 2, wherein: the length of the drilling cutter handle (4) is smaller than that of the counter bore milling cutter, and the lengths of the drilling cutter handle (4) and the screw (7) are larger than that of the counter bore milling cutter.
6. The multi-function end mill according to claim 1, wherein: the shortest distance L1 between two knifepoints of the counter bore edge part (2) which are symmetrical about the center is smaller than the knife diameter L2 of the drilling edge part (6), and the knife diameter L3 of the counter bore edge part (2) is larger than the knife diameter L2 of the drilling edge part (6).
7. The multi-function end mill according to claim 1, wherein: the part of the drilling neck part (5) close to the drilling blade part (6) is of a cone frustum structure, the part of the drilling neck part (5) close to the drilling knife handle (4) is of a cylindrical structure, and the diameter of one end, far away from the drilling blade part (6), of the cone frustum is equal to the cylindrical diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223006290.XU CN218476061U (en) | 2022-11-11 | 2022-11-11 | Multifunctional end milling cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223006290.XU CN218476061U (en) | 2022-11-11 | 2022-11-11 | Multifunctional end milling cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218476061U true CN218476061U (en) | 2023-02-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223006290.XU Active CN218476061U (en) | 2022-11-11 | 2022-11-11 | Multifunctional end milling cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218476061U (en) |
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2022
- 2022-11-11 CN CN202223006290.XU patent/CN218476061U/en active Active
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