CN213496549U - High-precision reverse cutter - Google Patents
High-precision reverse cutter Download PDFInfo
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- CN213496549U CN213496549U CN202022187290.9U CN202022187290U CN213496549U CN 213496549 U CN213496549 U CN 213496549U CN 202022187290 U CN202022187290 U CN 202022187290U CN 213496549 U CN213496549 U CN 213496549U
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Abstract
The utility model discloses a high-precision reverse cutter, which comprises a cutter body, wherein the front end of the cutter body is provided with a cutter head with a blade, the cutter body, the cutter head and the blade are connected into a whole, the rear end of the cutter body is parallelly provided with a cutter bar, a flange plate is vertically arranged between the cutter bar and the cutter body, one side of the cutter bar is provided with a flat concave part to form a radial pressing surface; the surface of the flange plate is a plane to form an axial pressing surface, and pressing forces applied to the radial pressing surface and the axial pressing surface respectively offset cutting forces applied to the blade. The utility model discloses a with cutter arbor that the cutter body is parallel and with cutter body vertically ring flange, the rear end that gives the cutter body forms radially to compress tightly face and axial and compresses tightly the face, radially compress tightly 180 relative between the packing force that face and axial compressed tightly the face received and the cutting force that the blade produced to offset each other, reduce the production of the sword that shakes to the at utmost, thereby improved the machining precision.
Description
Technical Field
The utility model relates to a metal cutting technical field specifically relates to a reverse cutter of high accuracy.
Background
The conventional tool for cutting a bore hole generally includes a tool holder and an insert fixedly mounted at a front end of the tool holder. When boring holes with special structures are machined, reverse machining cutting is sometimes needed. When carrying out reverse processing, because the change of direction of force, connection structure between cutter arbor and the fixture also can change, can be because opposite direction of force, can't compress tightly between cutter arbor and the fixture for in actual processing, the cutter arbor can be followed to the blade and the production is rocked, the sword that shakes appears, thereby the surface that leads to the machined part produces line and burr of shaking, leads to processing failure.
Therefore, how to enhance the stability of the reverse cutting tool is a problem which needs to be solved urgently at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art existence, provide a reverse cutter of high accuracy.
The purpose of the utility model is realized through the following technical scheme:
high accuracy reverse cutter, its characterized in that: the cutter comprises a cutter body, wherein a cutter head with a blade is arranged at the front end of the cutter body, the cutter head and the blade are connected into a whole, a cutter bar is arranged at the rear end of the cutter body in parallel, a flange plate is vertically arranged between the cutter bar and the cutter body, and a flat concave part is arranged on one side of the cutter bar to form a radial pressing surface; the surface of the flange plate is a plane to form an axial pressing surface, and pressing forces applied to the radial pressing surface and the axial pressing surface respectively offset cutting forces applied to the blade.
Preferably, the flange plate is provided with a group of threaded holes for passing through the locking screws, and the threaded holes are symmetrically distributed.
Preferably, the flange plate is provided with four threaded holes distributed at equal intervals, and the four threaded holes are located on the same circumference.
Preferably, the diameter of the cutter bar is smaller than that of the cutter body, the cutter bar is fixedly arranged at the center of the flange plate, and the threaded hole is formed in the periphery of the joint of the cutter bar and the flange plate.
Preferably, the flange plate is provided with at least two arc surfaces which are oppositely arranged, and the arc surfaces are smoothly connected with the first side surface of the cutter body.
Preferably, a second side surface of the cutter body, which is opposite to the first side surface, is a straight plane, and the second side surface is connected with the flange plate through an arc-shaped surface.
Preferably, one end of the cutter head is smoothly connected with the first side surface, the other end of the cutter head protrudes out of the second side surface, and the blade is fixedly arranged at the end part of the protruding end of the blade.
Preferably, the vertex angle of the smooth connection between the tool bit and the first side surface is provided with an inclined surface.
The beneficial effects of the utility model are mainly embodied in that:
1. the rear end of the cutter body is provided with a radial pressing surface and an axial pressing surface through the cutter bar parallel to the cutter body and the flange plate vertical to the cutter body, and pressing force applied to the radial pressing surface and the axial pressing surface is opposite to cutting force generated by the blade by 180 degrees, so that the pressing force and the cutting force are mutually offset, generation of vibration cutter is reduced to the greatest extent, and the machining precision is improved;
2. the flat concave part on the cutter bar can increase the stress area of the cutter bar, so that the cutter bar can bear more radial pressing force;
3. the flange plate is provided with the threaded holes uniformly, so that the flange plate can be locked on a plane matched with the flange plate more stably by the locking screws, and the use stability of the cutter body is improved;
4. the diameter of the cutter body is smaller than that of the flange plate, so that the cutter body can extend into a narrow space for processing, and the application range of the cutter body is enlarged;
5. the inclined plane that the cutter body front end has can effectively keep away the position, avoids adding the cutter body wearing and tearing machined part man-hour.
Drawings
The technical scheme of the utility model is further explained by combining the attached drawings as follows:
FIG. 1: the structure of the embodiment of the utility model is schematically shown;
FIG. 2: the structure of the embodiment of the utility model is schematically shown in another angle;
FIG. 3: the surface schematic diagram of the flange plate in the embodiment of the utility model;
FIG. 4: the embodiment of the utility model provides a with the schematic structure of handle of a knife.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. However, these embodiments are not limited to the present invention, and structural, method, or functional changes made by those skilled in the art according to these embodiments are all included in the scope of the present invention.
In the description of the schemes, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the embodiment, the operator is used as a reference, and the direction close to the operator is a proximal end, and the direction away from the operator is a distal end.
As shown in fig. 1 to 3, the utility model discloses a high-precision reverse cutter, which comprises a cutter body 1, wherein a cutter head 2 with a blade 3 is arranged at the front end of the cutter body 1, the cutter head 2 and the blade 3 are connected into a whole, a cutter bar 4 is arranged at the rear end of the cutter body 1 in parallel, a flange 5 is vertically arranged between the cutter bar 4 and the cutter body 1, and one side of the cutter bar 4 is provided with a flat concave part 41 to form a radial pressing surface; the surface of the flange 5 is a plane to form an axial pressing surface, and pressing forces applied to the radial pressing surface and the axial pressing surface respectively offset cutting forces applied to the blade 3.
As shown in fig. 4, when the present invention is used, the tool bar 4 is inserted into the tool holder 8, a locking screw (not shown in the figure) is disposed on a side portion of the tool holder 8, and an end portion of the locking screw abuts against the flat concave portion 41 to generate a radial pressing force on the flat concave portion 41; and a locking screw is arranged on the front end face of the cutter handle 8, penetrates through the flange plate 5 and locks the flange plate 5 on the front end face of the cutter handle 8 so as to generate axial pressing force on the flange plate 5. The radial pressing force and the axial pressing force are respectively opposite to the cutting force applied to the blade 3 by 180 degrees, so that the radial pressing force and the axial pressing force are mutually offset, the generation of vibration is reduced to the maximum extent, and the machining precision is improved.
Specifically, the flange 5 is provided with a group of threaded holes 6 for allowing locking screws to pass through, and the threaded holes 6 are symmetrically distributed so as to lock the flange 5 to the front end face of the tool holder 8 more firmly.
In the preferred embodiment, as shown in fig. 3, the flange 5 has four equally spaced threaded holes 6, and the four threaded holes 6 are located on the same circumference. And locking screws are respectively arranged in the four threaded holes 6. The four threaded holes 6 can lock the flange 5 in all directions, and in other embodiments, the flange 5 may also have more than 4 threaded holes.
In this embodiment, the diameter of the tool bar 4 is smaller than that of the tool body 1, the tool bar 4 is fixedly arranged at the center of the flange 5, and the threaded hole 6 is formed in the periphery of the joint of the tool bar 4 and the flange 5.
The flange 5 at least has two arc surfaces 51 which are oppositely arranged, and the arc surfaces 51 are smoothly connected with the first side surface 11 of the cutter body 1. The circular arc surface 51 can increase the area of the flange 5, so that the flange is more attached to the cutter handle 8. In the preferred embodiment, the flange 5 further has two flat surfaces 52, so that the flange 5 can be effectively avoided, and the cutter body 1 can be conveniently operated in a narrow space.
As shown in fig. 2, a second side surface 12 of the cutter body 1 opposite to the first side surface 11 is a flat plane, and the second side surface 12 is connected with the flange 5 through an arc surface 13. Due to the structure, the cutter body 1 and the flange plate 5 are eccentrically arranged, and the cutter body 1 can stretch into a narrow space to be machined conveniently. And the arc-shaped surface 13 has better deformation and pressure resistance, so that the cutter body 1 can be prevented from being broken off from the joint of the cutter body and the flange plate 5, and the rigidity of the cutter body 1 is improved.
Furthermore, one end of the cutter head 2 is smoothly connected with the first side surface 11, the other end of the cutter head protrudes out of the second side surface 12, and the blade 3 is fixedly arranged at the end part of the protruding end of the blade. In the preferred embodiment, the blade 3 and the portion of the flange 5 protruding from the cutter body 1 are located on the same side, and in other possible embodiments, the blade 3 may be located on the other side of the cutter body 2, or located on the opposite side of the portion of the flange 5 protruding from the cutter body 1.
In order to avoid hard contact, the top corner of the tool bit 2 smoothly connected with the first side surface 11 is provided with an inclined surface 7, so that the tool body is prevented from wearing a machined part during machining.
In addition, in the preferred embodiment, the blade 3 is a diamond-shaped blade, and a concave hole for avoiding a position is used at the joint of the vertex angle of the diamond-shaped blade and the cutter head 2, so as to avoid excessive abrasion between the blade 3 and the cutter body 2. In other embodiments, the blade 3 may have other suitable configurations, such as triangular, rectangular, etc.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (8)
1. High accuracy reverse cutter, its characterized in that: the tool comprises a tool body (1), wherein a tool bit (2) with a blade (3) is arranged at the front end of the tool body (1), the tool bit (2) and the blade (3) are connected into a whole, a tool bar (4) is arranged at the rear end of the tool body (1) in parallel, a flange plate (5) is vertically arranged between the tool bar (4) and the tool body (1), and a flat concave part (41) is arranged at one side of the tool bar (4) to form a radial pressing surface; the surface of the flange plate (5) is a plane to form an axial pressing surface, and pressing forces applied to the radial pressing surface and the axial pressing surface respectively offset cutting forces applied to the blade (3).
2. The high precision reverse cutter according to claim 1, wherein: the flange plate (5) is provided with a group of threaded holes (6) for passing through locking screws, and the threaded holes (6) are symmetrically distributed.
3. The high precision reverse cutter according to claim 2, characterized in that: the flange plate (5) is provided with four equally-distributed threaded holes (6), and the four threaded holes (6) are located on the same circumference.
4. The high precision reverse cutter according to claim 3, wherein: the diameter of the cutter bar (4) is smaller than that of the cutter body (1), the cutter bar (4) is fixedly arranged at the center of the flange plate (5), and the threaded hole (6) is formed in the periphery of the joint of the cutter bar (4) and the flange plate (5).
5. The high precision reverse cutter according to claim 1, wherein: the flange plate (5) is at least provided with two arc surfaces (51) which are oppositely arranged, and the arc surfaces (51) are smoothly connected with the first side surface (11) of the cutter body (1).
6. The high precision reverse cutter according to claim 5, wherein: the second side surface (12) of the cutter body (1) opposite to the first side surface (11) is a flat plane, and the second side surface (12) is connected with the flange plate (5) through an arc-shaped surface (13).
7. The high precision reverse cutter according to claim 6, wherein: one end of the cutter head (2) is smoothly connected with the first side surface (11), the other end of the cutter head protrudes out of the second side surface (12), and the blade (3) is fixedly arranged at the end part of the protruding end of the blade.
8. The high precision reverse cutter according to claim 7, wherein: the vertex angle of the tool bit (2) which is smoothly connected with the first side surface (11) is provided with an inclined surface (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022187290.9U CN213496549U (en) | 2020-09-29 | 2020-09-29 | High-precision reverse cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022187290.9U CN213496549U (en) | 2020-09-29 | 2020-09-29 | High-precision reverse cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213496549U true CN213496549U (en) | 2021-06-22 |
Family
ID=76463757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022187290.9U Active CN213496549U (en) | 2020-09-29 | 2020-09-29 | High-precision reverse cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213496549U (en) |
-
2020
- 2020-09-29 CN CN202022187290.9U patent/CN213496549U/en active Active
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