CN218460881U - Small hole boring cutter with end face blade - Google Patents
Small hole boring cutter with end face blade Download PDFInfo
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- CN218460881U CN218460881U CN202222072418.6U CN202222072418U CN218460881U CN 218460881 U CN218460881 U CN 218460881U CN 202222072418 U CN202222072418 U CN 202222072418U CN 218460881 U CN218460881 U CN 218460881U
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Abstract
The utility model provides a small hole boring cutter with end face blade, which comprises a clamping handle part, an extension neck part and a cutter head part which are arranged in sequence, wherein the cutter head part comprises a cutting seat and a cutting blade, the bottom side of the end part of the cutting seat is provided with the cutting blade, the end face of the cutting blade is the end face blade, the base angle of the end face of the cutting blade is a cutter point, the end part of the cutting seat and the rake face of the cutting blade are both triangular, and the rake face inclines towards the inner side from the end face blade; the outer diameter of the cutter point radial movement is larger than that of the extension neck part radial movement; the cutting seat is provided with a clearance flat section, the extension neck is provided with a clearance oblique plane, and the clearance oblique plane inclines to the outer side of the extension neck from the end surface connected with the clearance flat section. In the application, the cutting edge is added on the end face of the boring cutter, and the end face edge is used for machining and forming the bottom once when the small hole boring cutter reaches the bottom of a hole, so that the bottom face does not need to be machined through the profiling of a cutter point. The rigidity of the cutter is increased, the problem that parts of products are difficult to process is solved, and the quality of the processed surface can be better improved.
Description
Technical Field
The utility model relates to a processing cutter field especially relates to a take aperture boring cutter of terminal surface sword.
Background
The small-hole boring cutter generally machines the surface of a workpiece through a cutter point R, but when a workpiece with a small hole diameter is machined in an inner hole, the machining of the bottom surface of the inner hole can be completed only by a cutter with a smaller diameter, so that the rigidity of the cutter is weakened.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a take aperture boring cutter of terminal surface sword, with bottom one shot forming when the boring cutter reachs the hole bottom, need not to process the bottom surface through the profile modeling of knife tip.
In order to achieve the above object, the utility model provides a small hole boring cutter with end face edge, including the centre gripping stalk portion, extension neck and the tool bit portion that set gradually, the tool bit portion includes cutting seat and cutting edge, the bottom side of cutting seat tip is equipped with the cutting edge, the terminal surface of cutting edge is the end face edge perpendicular with centre gripping stalk portion axis, the base angle of cutting edge terminal surface is the knife tip, the tip of cutting seat and the rake face of cutting edge all are triangle-shaped, the rake face is in the inboard slope of end face edge; the outer diameter of the cutter tip in radial movement is larger than that of the extension neck in radial movement;
the cutting seat is provided with an air-avoiding tangent plane, the extension neck is provided with an air-avoiding tangent plane, and the end surface of the air-avoiding tangent plane connected with the air-avoiding tangent plane inclines towards the outer side of the extension neck.
Furthermore, in the small-hole boring cutter with the end face blade, an arc tangent plane on the same side as the cutting edge is arranged on the extension neck, and a transitional neck avoiding plane is arranged between the arc tangent plane and the clamping handle.
Further, in the small hole boring tool with the end face blade, the radially movable outer diameter of the blade tip is smaller than the radially movable outer diameter of the clamping shank.
Further, in the small hole boring tool with the end face blade, the clearance flat section is parallel to the axis of the clamping handle.
Further, in the small hole boring tool with the end face blade, the included angle between the inclined clearance surface and the axis of the clamping handle part is 30 degrees.
Furthermore, in the small-hole boring cutter with the end face blade, a guide tangent plane is arranged between the front cutter face and the clearance-avoiding tangent plane.
Furthermore, in the small hole boring tool with the end face blade, a positioning inclined plane is arranged at the tail end of the clamping handle part, and the included angle between the positioning inclined plane and the axis of the clamping handle part is 30 degrees.
Furthermore, in the small-hole boring cutter with the end face blade, the included angle between the end face blade and the axis of the clamping handle is 90 degrees; the included angle between one side of the tool nose, which is far away from the end face edge, and the axis of the clamping handle part is 20 degrees.
Furthermore, in the small-hole boring cutter with the end face blade, the included angle between one side of the end part of the cutting seat, which is back to the cutting edge, and the axis of the clamping handle part is 45 degrees.
Further, in the small-hole boring tool with the end face blade, the clamping handle part, the extending neck part and the tool head part are integrally constructed.
Compared with the prior art, the beneficial effects of the utility model are mainly embodied in that: the end face of the boring cutter is additionally provided with a cutting edge, and the end face edge is used for machining and forming the bottom once when the small hole boring cutter reaches the bottom of the hole, so that the bottom surface is not required to be machined by copying the tool nose. The rigidity of the cutter is increased, the problem that parts of products are difficult to process is solved, and the quality of the processed surface can be better improved.
Drawings
FIG. 1 is a schematic view of a three-dimensional structure of a small hole boring tool with an end face blade according to the present invention;
FIG. 2 is a schematic structural view of the small hole boring tool with an end face blade in the present invention;
FIG. 3 is an enlarged view of the portion A in FIG. 2;
FIG. 4 is a schematic bottom view of the structure of FIG. 2;
FIG. 5 is a left side view of the structure of FIG. 4;
fig. 6 is a schematic sectional view of the portion B-B in fig. 2.
Wherein: the cutting tool comprises a clamping handle part 1, an extending neck part 2, an evacuation chamfer 21, an arc tangent plane 22, a neck evacuation plane 23, a cutting seat 3, an evacuation tangent plane 31, a cutting edge 4, an end face edge 41, a tool nose 42, a rake face 43, a guide tangent plane 5, a positioning inclined plane 6 and a tool nose moving track 7.
Detailed Description
The present invention, an aperture boring tool with end face blades, will now be described in greater detail with reference to the drawings, in which preferred embodiments of the invention are shown, it being understood that those skilled in the art may modify the invention herein described while still achieving the advantageous effects of the invention. Accordingly, the following description should be construed as broadly as possible to those skilled in the art and not as limiting the invention.
In the description of the present invention, it should be noted that, for the orientation words, if there are terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and positional relationship indicated are based on the orientation or positional relationship shown in the drawings, and only for the convenience of describing the present invention and simplifying the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and not be construed as limiting the specific scope of the present invention.
The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
As shown in fig. 1 to 4, the utility model provides a take aperture boring cutter of end face sword, including centre gripping stalk portion 1 that sets gradually, extension neck 2 and tool bit portion, the tool bit portion includes cutting seat 3 and cutting edge 4, and the bottom side of cutting seat 3 tip is equipped with cutting edge 4, and the terminal surface of cutting edge 4 is the end face sword 41 with centre gripping stalk portion 1 axis vertically, and the base angle of cutting edge 4 terminal surface is knife tip 42, and the tip of cutting seat 3 and the rake face 43 of cutting edge 4 all are triangle-shaped, and rake face 43 inclines to the inboard in end face sword 41, makes things convenient for the piece under the cutting of end face sword 41 and knife tip 42 to discharge from rake face 43 below.
Meanwhile, as shown in fig. 2 to 4, the cutting seat 3 has an evacuation tangent plane 31, the extension neck 2 has an evacuation tangent plane 21, and the evacuation tangent plane 21 is inclined toward the outside of the extension neck 2 at the end surface connected to the evacuation tangent plane 31. The matching structure of the clearance-avoiding tangent plane 31 and the clearance-avoiding tangent plane 21 improves the chip removal capability of the boring cutter in the hole structure machining process, effectively avoids the generation of burrs and has high machining quality.
Further, as shown in fig. 1 to 3, a guide tangent plane 5 is disposed between the rake surface 43 and the clearance tangent plane 31, and the guide tangent plane 5 cooperates with the inclined structure of the rake surface 43 to guide and discharge the chips, and cooperates with the chips to be discharged along the clearance tangent plane 21 toward the clearance tangent plane 31.
Further, as shown in fig. 1 to 4, an arc tangent plane 22 is provided on the extension neck portion 2 on the same side as the cutting edge 4, a transitional neck portion avoiding plane 23 is provided between the arc tangent plane 22 and the clamping handle portion 1, and the width of the extension neck portion 2 is reduced by the arrangement of the arc tangent plane 22. Specifically, as shown in fig. 6, the range of the blade edge movement track 7 of the blade edge 42 during the working is greater than the cross-sectional range of the extension neck 2, and the radial movable outer diameter of the blade edge 42 is greater than the radial movable outer diameter of the extension neck 2, so that the blade edge 42 can be conveniently used for processing in a hole during the working, and the extension neck 2 is prevented from contacting with the inner wall of the hole. The radial movable outer diameter of the cutter point 42 is smaller than that of the clamping handle part 1, so that the influence of the size of the clamping handle part 1 on the movement of the cutter point 42 is avoided.
Further, as shown in fig. 2 to 3, the cut-off plane 31 is parallel to the axis of the holding handle 1, and the included angle between the cut-off plane 21 and the axis of the holding handle 1 is 30 °. When the boring cutter rotates around the axis of the clamping handle part 1, the chippings can be effectively limited in front of the clearance tangent plane 31 and can be quickly discharged along the clearance tangent plane 21.
Further, as shown in fig. 4, the tail end of the clamping handle part 1 is provided with a positioning inclined surface 6, the included angle between the positioning inclined surface 6 and the axis of the clamping handle part 1 is 30 degrees, the clamping handle part 1 is convenient to position the clamping hoop through the positioning inclined surface 6 and the clamping structure, and dislocation movement is avoided.
Further, as shown in fig. 3, the end face edge 41 forms an angle of 90 ° with the axis of the grip shank 1; the included angle between the side of the knife edge 42 far away from the end face blade 41 and the axis of the clamping handle part 1 is 20 degrees, and the processing efficiency of the end face blade 41 and the knife edge 42 is effectively improved.
Further, as shown in fig. 1 to 3, the included angle between the side of the end of the cutting seat 3 opposite to the cutting edge 4 and the axis of the clamping handle 1 is 45 °, so as to avoid affecting the machining operation.
Further, as shown in fig. 1, the clamping shank 1, the extension neck 2 and the bit portion are of an integral construction.
In summary, in the present embodiment, the hole boring tool with the end face blade is proposed in which the edge is added to the end face of the boring tool, and the end face blade is used to machine the bottom portion at a time when the hole boring tool reaches the bottom of the hole, so that it is not necessary to machine the bottom surface by profiling the tip. The rigidity of the cutter is increased, the problem that part of products are not easy to machine is solved, and the quality of the machined surface can be well improved.
The above description is only for the preferred embodiment of the present invention, and does not limit the present invention. Any technical personnel who belongs to technical field, within the scope that does not deviate from the technical scheme of the utility model, to the technical scheme and technical content that the utility model discloses do the change such as equivalent replacement or modification of any form, all belong to the content that does not break away from the technical scheme of the utility model, still belong to within the scope of protection of the utility model.
Claims (10)
1. The small hole boring cutter with the end face edge is characterized by comprising a clamping handle part (1), an extending neck part (2) and a cutter head part which are sequentially arranged, wherein the cutter head part comprises a cutting seat (3) and a cutting edge (4), the cutting edge (4) is arranged on the bottom side of the end part of the cutting seat (3), the end face of the cutting edge (4) is an end face edge (41) which is perpendicular to the axis of the clamping handle part (1), the bottom angle of the end face of the cutting edge (4) is a cutter point (42), the end part of the cutting seat (3) and a front cutter face (43) of the cutting edge (4) are both triangular, and the front cutter face (43) inclines inwards relative to the end face edge (41); the radial movable outer diameter of the tool nose (42) is larger than that of the extension neck (2);
the cutting seat (3) is provided with an air-avoiding tangent plane (31), the extension neck (2) is provided with an air-avoiding tangent plane (21), and the end surface of the air-avoiding tangent plane (21) connected with the air-avoiding tangent plane (31) inclines towards the outer side of the extension neck (2).
2. The boring tool according to claim 1, characterized in that the extended neck (2) is provided with an arc cutting surface (22) on the same side as the cutting edge (4), and a transitional neck relief surface (23) is provided between the arc cutting surface (22) and the clamping shank (1).
3. The hole boring tool with end cutting edges as claimed in claim 1, characterized in that the radially movable outer diameter of the cutting tip (42) is smaller than the radially movable outer diameter of the clamping shank (1).
4. The boring tool with end cutting edges according to claim 1, characterized in that the relief plane surface (31) is parallel to the axis of the clamping shank (1).
5. The small-hole boring tool with end face edges as claimed in claim 1, characterized in that the angle of the relief chamfer (21) with the axis of the clamping shank (1) is 30 °.
6. The boring tool with end face edges according to claim 1, characterized in that a guide tangent plane (5) is provided between the rake face (43) and the clearance tangent plane (31).
7. The small-hole boring tool with the end face edges as claimed in claim 6, characterized in that the tail end of the clamping shank (1) is provided with a positioning bevel (6), and the angle between the positioning bevel (6) and the axis of the clamping shank (1) is 30 degrees.
8. The small-hole boring tool with end face edges according to claim 1, characterized in that the end face edges (41) are at an angle of 90 ° to the axis of the clamping shank (1); the included angle between one side of the knife tip (42) far away from the end face blade (41) and the axis of the clamping handle part (1) is 20 degrees.
9. The hole boring cutter with end cutting edges as claimed in claim 1, characterized in that the side of the end of the cutting seat (3) facing away from the cutting edge (4) forms an angle of 45 ° with the axis of the clamping shank (1).
10. The hole boring tool with end cutting edges according to claim 1, characterized in that the clamping shank (1), the extension neck (2) and the tool head are of one-piece construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222072418.6U CN218460881U (en) | 2022-08-08 | 2022-08-08 | Small hole boring cutter with end face blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222072418.6U CN218460881U (en) | 2022-08-08 | 2022-08-08 | Small hole boring cutter with end face blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218460881U true CN218460881U (en) | 2023-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222072418.6U Active CN218460881U (en) | 2022-08-08 | 2022-08-08 | Small hole boring cutter with end face blade |
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| CN (1) | CN218460881U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116571771A (en) * | 2023-07-12 | 2023-08-11 | 赣州澳克泰工具技术有限公司 | Boring cutter with a plurality of cutting parts |
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2022
- 2022-08-08 CN CN202222072418.6U patent/CN218460881U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116571771A (en) * | 2023-07-12 | 2023-08-11 | 赣州澳克泰工具技术有限公司 | Boring cutter with a plurality of cutting parts |
| CN116571771B (en) * | 2023-07-12 | 2024-02-02 | 赣州澳克泰工具技术有限公司 | Boring cutter with a plurality of cutting parts |
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