CN220591680U - Split milling cutter structure - Google Patents
Split milling cutter structure Download PDFInfo
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- CN220591680U CN220591680U CN202321895726.7U CN202321895726U CN220591680U CN 220591680 U CN220591680 U CN 220591680U CN 202321895726 U CN202321895726 U CN 202321895726U CN 220591680 U CN220591680 U CN 220591680U
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- 238000003801 milling Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 description 7
- 238000003754 machining Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The utility model discloses a split milling cutter structure, which comprises: the cutter head and the cutter bar are detachably fixed at one end of the cutter bar; the cutter head is provided with a first positioning piece, and the cutter bar is provided with a second positioning piece; the cutter head is provided with a third positioning piece, the cutter bar is provided with a fourth positioning piece, and the third positioning piece is in positioning connection with the fourth positioning piece so as to limit the cutter head to move relative to the cutter bar along the direction perpendicular to the axial direction of the cutter bar. The cutter head and the cutter bar are connected through the positioning of the first positioning piece and the second positioning piece, the cutter head is limited to rotate around the axial direction of the cutter bar relative to the cutter bar, the cutter head is limited to move along the axial direction perpendicular to the cutter bar relative to the cutter bar through the positioning connection of the third positioning piece and the fourth positioning piece, the cutter head is limited to move or rotate relative to the cutter bar, the cutter bar and the cutter head synchronously move, and the milling precision of the cutter head during use is improved.
Description
Technical Field
The utility model relates to the technical field of milling cutters, in particular to a split milling cutter structure.
Background
The milling cutter is used as a rotary cutter for milling, and can be used for machining planes, steps, grooves, forming surfaces, cutting workpieces and the like on a milling machine. The milling cutter generally comprises a cutter head and a cutter bar, one end of the cutter bar is clamped on the milling machine, the cutter head is assembled at the other end of the cutter bar, and the cutter head and the cutter bar are assembled and connected through a fastener.
In the machining process, the cutter bar is provided with rotary power by the milling machine, the cutter bar drives the cutter head to rotate, and the surface allowance of the workpiece is cut off through feeding motion. However, due to the rotational inertia of the tool bit and the severe friction generated between the tool bit and the workpiece, the tool bit is easy to rotate or deviate relative to the tool bar, so that the assembly precision between the tool bit and the tool bar is affected, and the subsequent milling effect is affected.
Disclosure of Invention
The utility model provides a split milling cutter structure, which aims to solve the problems that the rotation inertia of a cutter head and the severe friction generated between the cutter head and a workpiece easily cause the rotation or the deviation of the cutter head relative to a cutter bar.
The application provides a split type milling cutter structure, include:
the cutter head is detachably fixed at one end of the cutter bar;
the cutter head is provided with a first positioning piece, the cutter bar is provided with a second positioning piece, and the first positioning piece is in positioning connection with the second positioning piece so as to limit the cutter head to rotate around the axial direction of the cutter bar relative to the cutter bar;
the cutter head is provided with a third locating piece, the cutter bar is provided with a fourth locating piece, and the third locating piece is in locating connection with the fourth locating piece so as to limit the cutter head to move relative to the cutter bar along the direction perpendicular to the axial direction of the cutter bar.
Further, the first locating piece is a polygonal locating hole, the second locating piece is a polygonal locating column, the polygonal locating column is inserted into the polygonal locating hole, and the outer diameter of the polygonal locating column is matched with the inner diameter of the polygonal locating hole so as to limit the cutter head to rotate around the axial direction of the cutter bar relative to the cutter bar.
Further, the third positioning piece is a round hole, the fourth positioning piece is a cylinder, the cylinder is inserted into the round hole, and the outer diameter of the cylinder is matched with the inner diameter of the round hole, so that the cutter head is limited to move relative to the cutter bar along the direction perpendicular to the axial direction of the cutter bar.
Further, the polygonal positioning column is positioned on the end face of one end of the cutter bar, and the polygonal positioning hole is positioned on one side of the cutter head, which is close to the cutter bar;
the cylinder is located polygonal locating column is kept away from one side of cutter arbor, the round hole is located polygonal locating hole is kept away from one side of cutter arbor, so that when the tool bit with the cutter arbor is connected, polygonal locating hole with polygonal locating column looks location is connected, the round hole with the cylinder looks location is connected.
Further, the outer diameter of the polygonal positioning column is larger than that of the cylinder, and the inner diameter of the polygonal positioning hole is larger than that of the round hole.
Further, the cutter bar, the polygonal positioning column and the cylinder are coaxially arranged, and the cutter bar, the polygonal positioning column and the cylinder are integrally formed.
Further, the cutter head is fixed at one end of the cutter bar through the screw.
Further, the tool bit is provided with a screw hole, the tool bar is provided with a screw hole corresponding to the screw hole, and the screw penetrates through the screw hole and is in threaded connection with the screw hole.
Further, the screw hole penetrates through the first positioning piece and the third positioning piece and is coaxially arranged with the first positioning piece and the third positioning piece; the threaded hole penetrates through the second positioning piece and the fourth positioning piece and is coaxially arranged with the second positioning piece and the fourth positioning piece.
Further, one side of the screw hole, which is away from the cutter bar, is arranged in a conical shape so as to embed the head of the screw.
The beneficial effects realized by the utility model are as follows:
the cutter head and the cutter bar are connected through the positioning of the first positioning piece and the second positioning piece, the cutter head can be limited to rotate around the axial direction of the cutter bar relative to the cutter bar, and the cutter head and the cutter bar are connected through the positioning of the third positioning piece and the fourth positioning piece, so that the cutter head can be limited to move along the direction perpendicular to the axial direction of the cutter bar relative to the cutter bar. The cutter head is matched with the cutter bar through two groups of positioning, so that the cutter head is connected with the cutter bar more firmly; when the milling cutter is used, the cutter head can be limited to move or rotate relative to the cutter bar, so that the cutter bar and the cutter head synchronously move, and the milling precision of the cutter head is improved.
The cutter head is connected with the cutter arbor in a detachable mode, so that the cutter is convenient to assemble, after long-time use, if one of the cutter head and the cutter arbor is worn and needs to be replaced, the cutter head and the cutter arbor are replaced correspondingly, the whole milling cutter structure is not required to be replaced, and resources are saved.
Drawings
Fig. 1 is an exploded view of a split milling cutter according to the present embodiment;
FIG. 2 is a cross-sectional view of a tool tip provided in this embodiment;
FIG. 3 is a right side schematic view of the tool bit according to the present embodiment;
fig. 4 is a schematic structural view of the cutter bar according to the present embodiment;
fig. 5 is an assembly schematic diagram of the split milling cutter structure provided in the present embodiment.
Reference numerals:
1-a cutter head; 11-a first positioning member; 12-a third positioning piece; 13-screw holes; 2-a cutter bar; 21-a second positioning member; 22-fourth positioning piece; 23-a threaded hole; 3-screws; 31-head.
The drawings are for illustrative purposes only and are not to be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the same or similar reference numerals correspond to the same or similar components; the terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limiting the present patent.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
It should be noted that, in the case of no conflict, the embodiments and technical features in the embodiments may be combined with each other, and the detailed description in the specific embodiments should be interpreted as an explanation of the gist of the present application and should not be construed as undue limitation to the present application.
For the purposes, technical solutions and advantages of the embodiments of the present application to be more apparent, the specific technical solutions of the present application will be described in further detail below with reference to the accompanying drawings in the embodiments of the present application. The following examples are illustrative of the present application, but are not intended to limit the scope of the present application.
In the present embodiments, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
Furthermore, in the embodiments of the present application, the terms "upper," "lower," "left," and "right," etc., are defined with respect to the orientation in which the components in the drawings are schematically disposed, and it should be understood that these directional terms are relative terms, which are used for descriptive and clarity with respect to each other, and which may vary accordingly with respect to the orientation in which the components in the drawings are disposed.
In the embodiments herein, unless explicitly specified and limited otherwise, the term "connected" is to be construed broadly, and for example, "connected" may be either a fixed connection, a removable connection, or an integral body; can be directly connected or indirectly connected through an intermediate medium.
In the present embodiments, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as examples, illustrations, or descriptions. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.
The technical scheme of the utility model is described in detail below with reference to the specific drawings.
Example 1
As shown in fig. 1, 2 and 4, a split milling cutter structure includes: the tool bit 1 and the tool bar 2, tool bit 1 detachable fixes the one end at tool bar 2. The cutter head 1 is provided with a first positioning piece 11, the cutter bar 2 is provided with a second positioning piece 21, and the first positioning piece 11 is in positioning connection with the second positioning piece 21 so as to limit the cutter head 1 to rotate around the axial direction of the cutter bar 2 relative to the cutter bar 2; the cutter head 1 is provided with a third positioning piece 12, the cutter bar 2 is provided with a fourth positioning piece 22, and the third positioning piece 12 is in positioning connection with the fourth positioning piece 22 so as to limit the cutter head 1 to move relative to the cutter bar 2 along the direction perpendicular to the axial direction of the cutter bar 2.
When the cutter head is particularly used, the cutter head 1 and the cutter bar 2 can be limited to rotate around the axial direction of the cutter bar 2 relative to the cutter bar 2 through the cooperation of the first positioning piece 11 and the second positioning piece 21, and the cutter head 1 and the cutter bar 2 can be limited to move along the direction perpendicular to the axial direction of the cutter bar 2 relative to the cutter bar 2 through the cooperation of the third positioning piece 12 and the fourth positioning piece 22. The cutter head 1 is matched with the cutter bar 2 through two groups of positioning, so that the cutter head 1 is connected with the cutter bar 2 more firmly; meanwhile, when the milling cutter is used, the cutter head 1 can be effectively limited to move or rotate relative to the cutter bar 2, so that the cutter bar 2 and the cutter head 1 synchronously move, and the milling precision of the cutter head 1 during use is improved.
The tool bit 1 is connected with the tool bar 2 in a detachable mode, so that the assembly is convenient, after long-time use, if one of the tool bit 1 and the tool bar is worn and needs to be replaced, the tool bit is replaced correspondingly, the whole milling cutter structure is not required to be replaced, and resources are saved. Meanwhile, the other end of the cutter bar 2 can be clamped on a machining machine tool, one end of the cutter bar 2 can be replaced with cutter heads 1 of different specifications according to machining requirements, and time for clamping and positioning the cutter bar 2 again after disassembly is saved.
It will be appreciated that the tool bar 2 may alternatively be a cylindrical or rectangular tool bar for mounting in association with a machine tool. In the present embodiment, the axial direction of the cutter bar 2 is defined as the direction extending laterally in fig. 4, and the direction perpendicular to the axial direction of the cutter bar 2 is defined as the direction extending vertically in fig. 4. The cutting head 1 may also be selected according to the requirements of use, such as a cylindrical milling cutter, a face milling cutter, a T-shaped milling cutter, etc. (as shown in fig. 1, the cutting head 1 is a T-shaped milling cutter). Of course, the type of the cutter head 1 can be adjusted according to the use requirement.
As shown in fig. 3 and 4, preferably, the first positioning member 11 is a polygonal positioning hole, the second positioning member 21 is a polygonal positioning column, the polygonal positioning column is inserted into the polygonal positioning hole, and the outer diameter of the polygonal positioning column is adapted to the inner diameter of the polygonal positioning hole so as to limit the tool bit 1 to rotate around the axial direction of the tool bar 2 relative to the tool bar 2.
As shown in fig. 1 and 5, when the tool bit 1 is assembled with the tool bar 2, the polygonal positioning columns are inserted into the polygonal positioning holes, and the polygonal positioning columns are limited to deflect relative to the polygonal positioning holes through the limitation of each side of the polygonal positioning holes, so that the tool bit 1 is limited to rotate relative to the tool bar 2 around the axial direction of the tool bar 2.
As shown in fig. 3, the polygonal positioning holes may be hexagonal positioning holes or octagonal positioning holes (other numbers of polygonal positioning holes are also possible); likewise, the polygonal positioning column is matched with the polygonal positioning column.
Preferably, the third positioning member 12 is a circular hole, the fourth positioning member 22 is a cylinder, the cylinder is inserted into the circular hole, and the outer diameter of the cylinder is matched with the inner diameter of the circular hole so as to limit the movement of the cutter head 1 relative to the cutter bar 2 along the direction perpendicular to the axial direction of the cutter bar 2.
When the tool bit 1 is assembled with the tool bar 2, through the plug-in fit of the round hole and the cylinder, the inner wall of the round hole limits the cylinder to deviate relative to the round hole, and then the tool bit 1 is limited to move along the direction perpendicular to the axial direction of the tool bar 2.
Further, the outer wall of the cylinder and the inner wall of the round hole can be accurately ground, so that the assembly precision of the outer wall of the cylinder and the inner wall of the round hole is improved, and the assembly precision of the cutter head 1 and the cutter bar 2 is effectively improved.
As shown in fig. 4, preferably, the polygonal positioning column is located on the end surface of one end of the cutter bar 2, and the polygonal positioning hole is located on one side of the cutter head 1, which is close to the cutter bar 2; the cylinder is located the polygon reference column and keeps away from the one side of cutter arbor 2, and the round hole is located the polygon locating hole and keeps away from one side of cutter arbor 2 to when making tool bit 1 and cutter arbor 2 be connected, polygon locating hole and polygon reference column are located mutually and are connected, and the round hole is located mutually with the cylinder and is connected.
Specifically, when the tool bit 1 is installed to one end of the tool bar 2 in a moving way, the cylinder is inserted into the round hole, then the polygonal positioning column is inserted into the polygonal positioning hole, so that the tool bit 1 is attached to one end of the tool bar 2, and then the tool bit 1 and the tool bar 2 can be assembled.
Preferably, the outer diameter of the polygonal positioning column is larger than that of the cylinder, and the inner diameter of the polygonal positioning hole is larger than that of the round hole.
Specifically, the outer diameter of the polygonal positioning column is larger than the outer diameter of the cylinder, and the inner diameter of the polygonal positioning hole is larger than the inner diameter of the round hole, so that the polygonal positioning column and the cylinder form a stepped structure; correspondingly, the polygonal positioning holes and the round holes also form a stepped structure. When the tool bit 1 is movably installed to one end of the tool bar 2, the two ladder-shaped structures are mutually close to each other, so that the round hole is firstly in positioning connection with the cylinder, and then the polygonal positioning column is in positioning connection with the polygonal positioning hole, so that the tool bit 1 is assembled at one end of the tool bar 2.
The cutter bar 2 and the polygonal positioning column are coaxially arranged with the cylinder, and the cutter bar 2, the polygonal positioning column and the cylinder are integrally formed. The polygonal positioning column, the cylinder and the cutter bar 2 are integrally formed, so that the strength of the polygonal positioning column, the cylinder and the cutter bar is consistent, and the connection strength of the polygonal positioning column and the cylinder is improved when the polygonal positioning column and the cylinder are correspondingly installed.
As shown in fig. 1 and 5, the split milling cutter structure further includes a screw 3, and the cutter head 1 is fixed to one end of the cutter bar 2 by the screw 3. Specifically, the tool bit 1 is provided with a screw hole 13, the tool bar 2 is provided with a screw hole 23 corresponding to the screw hole 13, and the screw 3 penetrates the screw hole 13 and is in threaded connection with the screw hole 23.
The screw 3 is connected with the screw hole 23 through the screw hole 13 in a threaded manner, so that the tool bit 1 is detachably fixed at one end of the tool bar 2. The tool bit 1 and the tool bar 2 are assembled more simply by means of threaded connection; meanwhile, the cutter head 1 and the cutter bar 2 can be arranged in a detachable mode, if one of the cutter head 1 and the cutter bar is worn and needs to be replaced, the cutter head is replaced correspondingly, the whole milling cutter structure is not required to be replaced, and resources are saved.
It will be appreciated that the screw holes 13 may be provided coaxially with the first and third positioning members 11 and 12, and the screw holes 23 may be provided coaxially with the second and fourth positioning members 21 and 22. Specifically, the screw hole 13 penetrates the first positioning piece 11 and the third positioning piece 12, and is coaxially arranged with the first positioning piece 11 and the third positioning piece 12; the screw hole 23 penetrates the second positioning member 21 and the fourth positioning member 22, and is disposed coaxially with the second positioning member 21 and the fourth positioning member 22.
The screw hole 13 is coaxially arranged with the first positioning piece 11 and the third positioning piece 12, namely in the embodiment, the screw hole 13 is coaxially arranged with the polygonal positioning hole and the round hole, so that the axial deviation of the three can be reduced, and the coaxiality of the three can be improved; similarly, the threaded hole 23 is coaxially arranged with the second positioning member 21 and the fourth positioning member 22, and the coaxiality of the three is correspondingly improved. When the tool bit 1 is installed at one end of the tool bar 2, the screw 3 penetrates through the screw hole 13 and is in threaded connection with the screw hole 23, so that the tool bit 1 and the tool bar 2 are coaxially installed, and the installation accuracy of the tool bit 1 and the tool bar 2 is improved.
As shown in fig. 2, the screw hole 13 is preferably tapered on the side facing away from the shank 2 to embed the head 31 of the screw 3.
One side of screw hole 13 deviating from cutter arbor 2 is the toper setting, and when screw 3 runs through screw hole 13 and screw hole 23 screw thread continuous, screw 3's head 31 can bury in the screw hole 13 that the toper set up, and then makes the terminal surface that cutter head 1 deviates from cutter arbor 2 one side more level and smooth, avoids screw 3's head 31 to expose, interferes the work piece during the processing.
The foregoing embodiment numbers of the present application are merely for describing, and do not represent advantages or disadvantages of the embodiments. The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the claims, and all equivalent structures or equivalent processes using the descriptions and drawings of the present application, or direct or indirect application in other related technical fields are included in the scope of the claims of the present application.
Claims (10)
1. A split milling cutter structure, comprising:
the cutter head (1) and the cutter bar (2), wherein the cutter head (1) is detachably fixed at one end of the cutter bar (2);
the cutter head (1) is provided with a first positioning piece (11), the cutter bar (2) is provided with a second positioning piece (21), and the first positioning piece (11) is in positioning connection with the second positioning piece (21) so as to limit the cutter head (1) to rotate around the axial direction of the cutter bar (2) relative to the cutter bar (2);
the cutter head (1) is provided with a third positioning piece (12), the cutter bar (2) is provided with a fourth positioning piece (22), and the third positioning piece (12) is in positioning connection with the fourth positioning piece (22), so that the cutter head (1) is limited to move relative to the cutter bar (2) along the direction perpendicular to the axial direction of the cutter bar (2).
2. The split milling cutter structure according to claim 1, wherein the first positioning member (11) is a polygonal positioning hole, the second positioning member (21) is a polygonal positioning column, the polygonal positioning column is inserted into the polygonal positioning hole, and the outer diameter of the polygonal positioning column is adapted to the inner diameter of the polygonal positioning hole so as to limit the rotation of the cutter head (1) relative to the cutter bar (2) around the axial direction of the cutter bar (2).
3. The split milling cutter structure according to claim 2, wherein the third positioning member (12) is a round hole, the fourth positioning member (22) is a cylinder, the cylinder is inserted into the round hole, and the outer diameter of the cylinder is adapted to the inner diameter of the round hole, so as to limit the movement of the cutter head (1) relative to the cutter bar (2) along a direction perpendicular to the axial direction of the cutter bar (2).
4. A split milling cutter structure according to claim 3, wherein the polygonal positioning post is located on an end face of one end of the cutter bar (2), and the polygonal positioning hole is located on a side of the cutter head (1) close to the cutter bar (2);
the cylinder is located polygonal locating column is kept away from one side of cutter arbor (2), the round hole is located polygonal locating hole is kept away from one side of cutter arbor (2), so that when tool bit (1) with cutter arbor (2) are connected, polygonal locating hole with polygonal locating column looks location is connected, the round hole with the cylinder looks location is connected.
5. The split milling cutter structure of claim 4, wherein the polygonal positioning post has an outer diameter greater than an outer diameter of the cylinder, and the polygonal positioning hole has an inner diameter greater than an inner diameter of the circular hole.
6. The split milling cutter structure according to claim 4, wherein the cutter bar (2), the polygonal positioning column and the cylinder are coaxially arranged, and the cutter bar (2), the polygonal positioning column and the cylinder are integrally formed.
7. A split milling cutter structure according to claim 3, further comprising a screw (3), the cutter head (1) being fixed at one end of the cutter bar (2) by means of the screw (3).
8. The split milling cutter structure according to claim 7, wherein the cutter head (1) is provided with a screw hole (13), the cutter bar (2) is provided with a screw hole (23) corresponding to the screw hole (13), and the screw (3) penetrates through the screw hole (13) and is in threaded connection with the screw hole (23).
9. The split milling cutter structure according to claim 8, wherein the screw hole (13) penetrates the first positioning member (11) and the third positioning member (12) and is coaxially provided with the first positioning member (11) and the third positioning member (12); the threaded hole (23) penetrates through the second positioning piece (21) and the fourth positioning piece (22) and is coaxially arranged with the second positioning piece (21) and the fourth positioning piece (22).
10. The split milling cutter structure according to claim 8, wherein the screw hole (13) is tapered on the side facing away from the shank (2) to embed the head (31) of the screw (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321895726.7U CN220591680U (en) | 2023-07-18 | 2023-07-18 | Split milling cutter structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321895726.7U CN220591680U (en) | 2023-07-18 | 2023-07-18 | Split milling cutter structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220591680U true CN220591680U (en) | 2024-03-15 |
Family
ID=90164437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321895726.7U Active CN220591680U (en) | 2023-07-18 | 2023-07-18 | Split milling cutter structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220591680U (en) |
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2023
- 2023-07-18 CN CN202321895726.7U patent/CN220591680U/en active Active
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